diff options
| author | Adam Langley <agl@chromium.org> | 2014-06-20 23:00:00 +0400 |
|---|---|---|
| committer | Adam Langley <agl@chromium.org> | 2014-06-21 00:17:32 +0400 |
| commit | 95c29f3cd1f6c08c6c0927868683392eea727ccb (patch) | |
| tree | 012767320ced9abca61472a4daa4c4a56b7ebe2b /crypto/aes | |
Inital import.
Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta).
(This change contains substantial changes from the original and
effectively starts a new history.)
Diffstat (limited to 'crypto/aes')
| -rw-r--r-- | crypto/aes/CMakeLists.txt | 52 | ||||
| -rw-r--r-- | crypto/aes/aes.c | 1077 | ||||
| -rw-r--r-- | crypto/aes/aes.h | 138 | ||||
| -rwxr-xr-x | crypto/aes/asm/aes-586.pl | 2987 | ||||
| -rw-r--r-- | crypto/aes/asm/aes-armv4.pl | 1219 | ||||
| -rw-r--r-- | crypto/aes/asm/aes-x86_64.pl | 2811 | ||||
| -rw-r--r-- | crypto/aes/asm/aesni-x86.pl | 2189 | ||||
| -rw-r--r-- | crypto/aes/asm/aesni-x86_64.pl | 3069 | ||||
| -rw-r--r-- | crypto/aes/asm/bsaes-armv7.pl | 2469 | ||||
| -rw-r--r-- | crypto/aes/asm/bsaes-x86_64.pl | 3108 | ||||
| -rw-r--r-- | crypto/aes/asm/vpaes-x86.pl | 902 | ||||
| -rw-r--r-- | crypto/aes/asm/vpaes-x86_64.pl | 1206 | ||||
| -rw-r--r-- | crypto/aes/internal.h | 87 | ||||
| -rw-r--r-- | crypto/aes/mode_wrappers.c | 99 |
14 files changed, 21413 insertions, 0 deletions
diff --git a/crypto/aes/CMakeLists.txt b/crypto/aes/CMakeLists.txt new file mode 100644 index 00000000..65458098 --- /dev/null +++ b/crypto/aes/CMakeLists.txt @@ -0,0 +1,52 @@ +include_directories(. .. ../../include) + +if (${ARCH} STREQUAL "x86_64") + set( + AES_ARCH_SOURCES + + aes-x86_64.${ASM_EXT} + aesni-x86_64.${ASM_EXT} + bsaes-x86_64.${ASM_EXT} + vpaes-x86_64.${ASM_EXT} + ) +endif() + +if (${ARCH} STREQUAL "x86") + set( + AES_ARCH_SOURCES + + aes-586.${ASM_EXT} + vpaes-x86.${ASM_EXT} + aesni-x86.${ASM_EXT} + ) +endif() + +if (${ARCH} STREQUAL "arm") + set( + AES_ARCH_SOURCES + + aes-armv4.${ASM_EXT} + bsaes-armv7.${ASM_EXT} + ) +endif() + +add_library( + aes + + OBJECT + + aes.c + mode_wrappers.c + + ${AES_ARCH_SOURCES} +) + +perlasm(aes-x86_64.${ASM_EXT} asm/aes-x86_64.pl) +perlasm(aesni-x86_64.${ASM_EXT} asm/aesni-x86_64.pl) +perlasm(bsaes-x86_64.${ASM_EXT} asm/bsaes-x86_64.pl) +perlasm(vpaes-x86_64.${ASM_EXT} asm/vpaes-x86_64.pl) +perlasm(aes-586.${ASM_EXT} asm/aes-586.pl) +perlasm(vpaes-x86.${ASM_EXT} asm/vpaes-x86.pl) +perlasm(aesni-x86.${ASM_EXT} asm/aesni-x86.pl) +perlasm(aes-armv4.${ASM_EXT} asm/aes-armv4.pl) +perlasm(bsaes-armv7.${ASM_EXT} asm/bsaes-armv7.pl) diff --git a/crypto/aes/aes.c b/crypto/aes/aes.c new file mode 100644 index 00000000..b0857874 --- /dev/null +++ b/crypto/aes/aes.c @@ -0,0 +1,1077 @@ +/* ==================================================================== + * Copyright (c) 2002-2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== */ + +#include <openssl/aes.h> + +#include <assert.h> + +#include "internal.h" + + +#if defined(OPENSSL_NO_ASM) || \ + (!defined(OPENSSL_X86) && !defined(OPENSSL_X86_64) && !defined(OPENSSL_ARM)) + +/* Te0[x] = S [x].[02, 01, 01, 03]; + * Te1[x] = S [x].[03, 02, 01, 01]; + * Te2[x] = S [x].[01, 03, 02, 01]; + * Te3[x] = S [x].[01, 01, 03, 02]; + * + * Td0[x] = Si[x].[0e, 09, 0d, 0b]; + * Td1[x] = Si[x].[0b, 0e, 09, 0d]; + * Td2[x] = Si[x].[0d, 0b, 0e, 09]; + * Td3[x] = Si[x].[09, 0d, 0b, 0e]; + * Td4[x] = Si[x].[01]; */ + +static const uint32_t Te0[256] = { + 0xc66363a5U, 0xf87c7c84U, 0xee777799U, 0xf67b7b8dU, 0xfff2f20dU, + 0xd66b6bbdU, 0xde6f6fb1U, 0x91c5c554U, 0x60303050U, 0x02010103U, + 0xce6767a9U, 0x562b2b7dU, 0xe7fefe19U, 0xb5d7d762U, 0x4dababe6U, + 0xec76769aU, 0x8fcaca45U, 0x1f82829dU, 0x89c9c940U, 0xfa7d7d87U, + 0xeffafa15U, 0xb25959ebU, 0x8e4747c9U, 0xfbf0f00bU, 0x41adadecU, + 0xb3d4d467U, 0x5fa2a2fdU, 0x45afafeaU, 0x239c9cbfU, 0x53a4a4f7U, + 0xe4727296U, 0x9bc0c05bU, 0x75b7b7c2U, 0xe1fdfd1cU, 0x3d9393aeU, + 0x4c26266aU, 0x6c36365aU, 0x7e3f3f41U, 0xf5f7f702U, 0x83cccc4fU, + 0x6834345cU, 0x51a5a5f4U, 0xd1e5e534U, 0xf9f1f108U, 0xe2717193U, + 0xabd8d873U, 0x62313153U, 0x2a15153fU, 0x0804040cU, 0x95c7c752U, + 0x46232365U, 0x9dc3c35eU, 0x30181828U, 0x379696a1U, 0x0a05050fU, + 0x2f9a9ab5U, 0x0e070709U, 0x24121236U, 0x1b80809bU, 0xdfe2e23dU, + 0xcdebeb26U, 0x4e272769U, 0x7fb2b2cdU, 0xea75759fU, 0x1209091bU, + 0x1d83839eU, 0x582c2c74U, 0x341a1a2eU, 0x361b1b2dU, 0xdc6e6eb2U, + 0xb45a5aeeU, 0x5ba0a0fbU, 0xa45252f6U, 0x763b3b4dU, 0xb7d6d661U, + 0x7db3b3ceU, 0x5229297bU, 0xdde3e33eU, 0x5e2f2f71U, 0x13848497U, + 0xa65353f5U, 0xb9d1d168U, 0x00000000U, 0xc1eded2cU, 0x40202060U, + 0xe3fcfc1fU, 0x79b1b1c8U, 0xb65b5bedU, 0xd46a6abeU, 0x8dcbcb46U, + 0x67bebed9U, 0x7239394bU, 0x944a4adeU, 0x984c4cd4U, 0xb05858e8U, + 0x85cfcf4aU, 0xbbd0d06bU, 0xc5efef2aU, 0x4faaaae5U, 0xedfbfb16U, + 0x864343c5U, 0x9a4d4dd7U, 0x66333355U, 0x11858594U, 0x8a4545cfU, + 0xe9f9f910U, 0x04020206U, 0xfe7f7f81U, 0xa05050f0U, 0x783c3c44U, + 0x259f9fbaU, 0x4ba8a8e3U, 0xa25151f3U, 0x5da3a3feU, 0x804040c0U, + 0x058f8f8aU, 0x3f9292adU, 0x219d9dbcU, 0x70383848U, 0xf1f5f504U, + 0x63bcbcdfU, 0x77b6b6c1U, 0xafdada75U, 0x42212163U, 0x20101030U, + 0xe5ffff1aU, 0xfdf3f30eU, 0xbfd2d26dU, 0x81cdcd4cU, 0x180c0c14U, + 0x26131335U, 0xc3ecec2fU, 0xbe5f5fe1U, 0x359797a2U, 0x884444ccU, + 0x2e171739U, 0x93c4c457U, 0x55a7a7f2U, 0xfc7e7e82U, 0x7a3d3d47U, + 0xc86464acU, 0xba5d5de7U, 0x3219192bU, 0xe6737395U, 0xc06060a0U, + 0x19818198U, 0x9e4f4fd1U, 0xa3dcdc7fU, 0x44222266U, 0x542a2a7eU, + 0x3b9090abU, 0x0b888883U, 0x8c4646caU, 0xc7eeee29U, 0x6bb8b8d3U, + 0x2814143cU, 0xa7dede79U, 0xbc5e5ee2U, 0x160b0b1dU, 0xaddbdb76U, + 0xdbe0e03bU, 0x64323256U, 0x743a3a4eU, 0x140a0a1eU, 0x924949dbU, + 0x0c06060aU, 0x4824246cU, 0xb85c5ce4U, 0x9fc2c25dU, 0xbdd3d36eU, + 0x43acacefU, 0xc46262a6U, 0x399191a8U, 0x319595a4U, 0xd3e4e437U, + 0xf279798bU, 0xd5e7e732U, 0x8bc8c843U, 0x6e373759U, 0xda6d6db7U, + 0x018d8d8cU, 0xb1d5d564U, 0x9c4e4ed2U, 0x49a9a9e0U, 0xd86c6cb4U, + 0xac5656faU, 0xf3f4f407U, 0xcfeaea25U, 0xca6565afU, 0xf47a7a8eU, + 0x47aeaee9U, 0x10080818U, 0x6fbabad5U, 0xf0787888U, 0x4a25256fU, + 0x5c2e2e72U, 0x381c1c24U, 0x57a6a6f1U, 0x73b4b4c7U, 0x97c6c651U, + 0xcbe8e823U, 0xa1dddd7cU, 0xe874749cU, 0x3e1f1f21U, 0x964b4bddU, + 0x61bdbddcU, 0x0d8b8b86U, 0x0f8a8a85U, 0xe0707090U, 0x7c3e3e42U, + 0x71b5b5c4U, 0xcc6666aaU, 0x904848d8U, 0x06030305U, 0xf7f6f601U, + 0x1c0e0e12U, 0xc26161a3U, 0x6a35355fU, 0xae5757f9U, 0x69b9b9d0U, + 0x17868691U, 0x99c1c158U, 0x3a1d1d27U, 0x279e9eb9U, 0xd9e1e138U, + 0xebf8f813U, 0x2b9898b3U, 0x22111133U, 0xd26969bbU, 0xa9d9d970U, + 0x078e8e89U, 0x339494a7U, 0x2d9b9bb6U, 0x3c1e1e22U, 0x15878792U, + 0xc9e9e920U, 0x87cece49U, 0xaa5555ffU, 0x50282878U, 0xa5dfdf7aU, + 0x038c8c8fU, 0x59a1a1f8U, 0x09898980U, 0x1a0d0d17U, 0x65bfbfdaU, + 0xd7e6e631U, 0x844242c6U, 0xd06868b8U, 0x824141c3U, 0x299999b0U, + 0x5a2d2d77U, 0x1e0f0f11U, 0x7bb0b0cbU, 0xa85454fcU, 0x6dbbbbd6U, + 0x2c16163aU, }; + +static const uint32_t Te1[256] = { + 0xa5c66363U, 0x84f87c7cU, 0x99ee7777U, 0x8df67b7bU, 0x0dfff2f2U, + 0xbdd66b6bU, 0xb1de6f6fU, 0x5491c5c5U, 0x50603030U, 0x03020101U, + 0xa9ce6767U, 0x7d562b2bU, 0x19e7fefeU, 0x62b5d7d7U, 0xe64dababU, + 0x9aec7676U, 0x458fcacaU, 0x9d1f8282U, 0x4089c9c9U, 0x87fa7d7dU, + 0x15effafaU, 0xebb25959U, 0xc98e4747U, 0x0bfbf0f0U, 0xec41adadU, + 0x67b3d4d4U, 0xfd5fa2a2U, 0xea45afafU, 0xbf239c9cU, 0xf753a4a4U, + 0x96e47272U, 0x5b9bc0c0U, 0xc275b7b7U, 0x1ce1fdfdU, 0xae3d9393U, + 0x6a4c2626U, 0x5a6c3636U, 0x417e3f3fU, 0x02f5f7f7U, 0x4f83ccccU, + 0x5c683434U, 0xf451a5a5U, 0x34d1e5e5U, 0x08f9f1f1U, 0x93e27171U, + 0x73abd8d8U, 0x53623131U, 0x3f2a1515U, 0x0c080404U, 0x5295c7c7U, + 0x65462323U, 0x5e9dc3c3U, 0x28301818U, 0xa1379696U, 0x0f0a0505U, + 0xb52f9a9aU, 0x090e0707U, 0x36241212U, 0x9b1b8080U, 0x3ddfe2e2U, + 0x26cdebebU, 0x694e2727U, 0xcd7fb2b2U, 0x9fea7575U, 0x1b120909U, + 0x9e1d8383U, 0x74582c2cU, 0x2e341a1aU, 0x2d361b1bU, 0xb2dc6e6eU, + 0xeeb45a5aU, 0xfb5ba0a0U, 0xf6a45252U, 0x4d763b3bU, 0x61b7d6d6U, + 0xce7db3b3U, 0x7b522929U, 0x3edde3e3U, 0x715e2f2fU, 0x97138484U, + 0xf5a65353U, 0x68b9d1d1U, 0x00000000U, 0x2cc1ededU, 0x60402020U, + 0x1fe3fcfcU, 0xc879b1b1U, 0xedb65b5bU, 0xbed46a6aU, 0x468dcbcbU, + 0xd967bebeU, 0x4b723939U, 0xde944a4aU, 0xd4984c4cU, 0xe8b05858U, + 0x4a85cfcfU, 0x6bbbd0d0U, 0x2ac5efefU, 0xe54faaaaU, 0x16edfbfbU, + 0xc5864343U, 0xd79a4d4dU, 0x55663333U, 0x94118585U, 0xcf8a4545U, + 0x10e9f9f9U, 0x06040202U, 0x81fe7f7fU, 0xf0a05050U, 0x44783c3cU, + 0xba259f9fU, 0xe34ba8a8U, 0xf3a25151U, 0xfe5da3a3U, 0xc0804040U, + 0x8a058f8fU, 0xad3f9292U, 0xbc219d9dU, 0x48703838U, 0x04f1f5f5U, + 0xdf63bcbcU, 0xc177b6b6U, 0x75afdadaU, 0x63422121U, 0x30201010U, + 0x1ae5ffffU, 0x0efdf3f3U, 0x6dbfd2d2U, 0x4c81cdcdU, 0x14180c0cU, + 0x35261313U, 0x2fc3ececU, 0xe1be5f5fU, 0xa2359797U, 0xcc884444U, + 0x392e1717U, 0x5793c4c4U, 0xf255a7a7U, 0x82fc7e7eU, 0x477a3d3dU, + 0xacc86464U, 0xe7ba5d5dU, 0x2b321919U, 0x95e67373U, 0xa0c06060U, + 0x98198181U, 0xd19e4f4fU, 0x7fa3dcdcU, 0x66442222U, 0x7e542a2aU, + 0xab3b9090U, 0x830b8888U, 0xca8c4646U, 0x29c7eeeeU, 0xd36bb8b8U, + 0x3c281414U, 0x79a7dedeU, 0xe2bc5e5eU, 0x1d160b0bU, 0x76addbdbU, + 0x3bdbe0e0U, 0x56643232U, 0x4e743a3aU, 0x1e140a0aU, 0xdb924949U, + 0x0a0c0606U, 0x6c482424U, 0xe4b85c5cU, 0x5d9fc2c2U, 0x6ebdd3d3U, + 0xef43acacU, 0xa6c46262U, 0xa8399191U, 0xa4319595U, 0x37d3e4e4U, + 0x8bf27979U, 0x32d5e7e7U, 0x438bc8c8U, 0x596e3737U, 0xb7da6d6dU, + 0x8c018d8dU, 0x64b1d5d5U, 0xd29c4e4eU, 0xe049a9a9U, 0xb4d86c6cU, + 0xfaac5656U, 0x07f3f4f4U, 0x25cfeaeaU, 0xafca6565U, 0x8ef47a7aU, + 0xe947aeaeU, 0x18100808U, 0xd56fbabaU, 0x88f07878U, 0x6f4a2525U, + 0x725c2e2eU, 0x24381c1cU, 0xf157a6a6U, 0xc773b4b4U, 0x5197c6c6U, + 0x23cbe8e8U, 0x7ca1ddddU, 0x9ce87474U, 0x213e1f1fU, 0xdd964b4bU, + 0xdc61bdbdU, 0x860d8b8bU, 0x850f8a8aU, 0x90e07070U, 0x427c3e3eU, + 0xc471b5b5U, 0xaacc6666U, 0xd8904848U, 0x05060303U, 0x01f7f6f6U, + 0x121c0e0eU, 0xa3c26161U, 0x5f6a3535U, 0xf9ae5757U, 0xd069b9b9U, + 0x91178686U, 0x5899c1c1U, 0x273a1d1dU, 0xb9279e9eU, 0x38d9e1e1U, + 0x13ebf8f8U, 0xb32b9898U, 0x33221111U, 0xbbd26969U, 0x70a9d9d9U, + 0x89078e8eU, 0xa7339494U, 0xb62d9b9bU, 0x223c1e1eU, 0x92158787U, + 0x20c9e9e9U, 0x4987ceceU, 0xffaa5555U, 0x78502828U, 0x7aa5dfdfU, + 0x8f038c8cU, 0xf859a1a1U, 0x80098989U, 0x171a0d0dU, 0xda65bfbfU, + 0x31d7e6e6U, 0xc6844242U, 0xb8d06868U, 0xc3824141U, 0xb0299999U, + 0x775a2d2dU, 0x111e0f0fU, 0xcb7bb0b0U, 0xfca85454U, 0xd66dbbbbU, + 0x3a2c1616U, }; + +static const uint32_t Te2[256] = { + 0x63a5c663U, 0x7c84f87cU, 0x7799ee77U, 0x7b8df67bU, 0xf20dfff2U, + 0x6bbdd66bU, 0x6fb1de6fU, 0xc55491c5U, 0x30506030U, 0x01030201U, + 0x67a9ce67U, 0x2b7d562bU, 0xfe19e7feU, 0xd762b5d7U, 0xabe64dabU, + 0x769aec76U, 0xca458fcaU, 0x829d1f82U, 0xc94089c9U, 0x7d87fa7dU, + 0xfa15effaU, 0x59ebb259U, 0x47c98e47U, 0xf00bfbf0U, 0xadec41adU, + 0xd467b3d4U, 0xa2fd5fa2U, 0xafea45afU, 0x9cbf239cU, 0xa4f753a4U, + 0x7296e472U, 0xc05b9bc0U, 0xb7c275b7U, 0xfd1ce1fdU, 0x93ae3d93U, + 0x266a4c26U, 0x365a6c36U, 0x3f417e3fU, 0xf702f5f7U, 0xcc4f83ccU, + 0x345c6834U, 0xa5f451a5U, 0xe534d1e5U, 0xf108f9f1U, 0x7193e271U, + 0xd873abd8U, 0x31536231U, 0x153f2a15U, 0x040c0804U, 0xc75295c7U, + 0x23654623U, 0xc35e9dc3U, 0x18283018U, 0x96a13796U, 0x050f0a05U, + 0x9ab52f9aU, 0x07090e07U, 0x12362412U, 0x809b1b80U, 0xe23ddfe2U, + 0xeb26cdebU, 0x27694e27U, 0xb2cd7fb2U, 0x759fea75U, 0x091b1209U, + 0x839e1d83U, 0x2c74582cU, 0x1a2e341aU, 0x1b2d361bU, 0x6eb2dc6eU, + 0x5aeeb45aU, 0xa0fb5ba0U, 0x52f6a452U, 0x3b4d763bU, 0xd661b7d6U, + 0xb3ce7db3U, 0x297b5229U, 0xe33edde3U, 0x2f715e2fU, 0x84971384U, + 0x53f5a653U, 0xd168b9d1U, 0x00000000U, 0xed2cc1edU, 0x20604020U, + 0xfc1fe3fcU, 0xb1c879b1U, 0x5bedb65bU, 0x6abed46aU, 0xcb468dcbU, + 0xbed967beU, 0x394b7239U, 0x4ade944aU, 0x4cd4984cU, 0x58e8b058U, + 0xcf4a85cfU, 0xd06bbbd0U, 0xef2ac5efU, 0xaae54faaU, 0xfb16edfbU, + 0x43c58643U, 0x4dd79a4dU, 0x33556633U, 0x85941185U, 0x45cf8a45U, + 0xf910e9f9U, 0x02060402U, 0x7f81fe7fU, 0x50f0a050U, 0x3c44783cU, + 0x9fba259fU, 0xa8e34ba8U, 0x51f3a251U, 0xa3fe5da3U, 0x40c08040U, + 0x8f8a058fU, 0x92ad3f92U, 0x9dbc219dU, 0x38487038U, 0xf504f1f5U, + 0xbcdf63bcU, 0xb6c177b6U, 0xda75afdaU, 0x21634221U, 0x10302010U, + 0xff1ae5ffU, 0xf30efdf3U, 0xd26dbfd2U, 0xcd4c81cdU, 0x0c14180cU, + 0x13352613U, 0xec2fc3ecU, 0x5fe1be5fU, 0x97a23597U, 0x44cc8844U, + 0x17392e17U, 0xc45793c4U, 0xa7f255a7U, 0x7e82fc7eU, 0x3d477a3dU, + 0x64acc864U, 0x5de7ba5dU, 0x192b3219U, 0x7395e673U, 0x60a0c060U, + 0x81981981U, 0x4fd19e4fU, 0xdc7fa3dcU, 0x22664422U, 0x2a7e542aU, + 0x90ab3b90U, 0x88830b88U, 0x46ca8c46U, 0xee29c7eeU, 0xb8d36bb8U, + 0x143c2814U, 0xde79a7deU, 0x5ee2bc5eU, 0x0b1d160bU, 0xdb76addbU, + 0xe03bdbe0U, 0x32566432U, 0x3a4e743aU, 0x0a1e140aU, 0x49db9249U, + 0x060a0c06U, 0x246c4824U, 0x5ce4b85cU, 0xc25d9fc2U, 0xd36ebdd3U, + 0xacef43acU, 0x62a6c462U, 0x91a83991U, 0x95a43195U, 0xe437d3e4U, + 0x798bf279U, 0xe732d5e7U, 0xc8438bc8U, 0x37596e37U, 0x6db7da6dU, + 0x8d8c018dU, 0xd564b1d5U, 0x4ed29c4eU, 0xa9e049a9U, 0x6cb4d86cU, + 0x56faac56U, 0xf407f3f4U, 0xea25cfeaU, 0x65afca65U, 0x7a8ef47aU, + 0xaee947aeU, 0x08181008U, 0xbad56fbaU, 0x7888f078U, 0x256f4a25U, + 0x2e725c2eU, 0x1c24381cU, 0xa6f157a6U, 0xb4c773b4U, 0xc65197c6U, + 0xe823cbe8U, 0xdd7ca1ddU, 0x749ce874U, 0x1f213e1fU, 0x4bdd964bU, + 0xbddc61bdU, 0x8b860d8bU, 0x8a850f8aU, 0x7090e070U, 0x3e427c3eU, + 0xb5c471b5U, 0x66aacc66U, 0x48d89048U, 0x03050603U, 0xf601f7f6U, + 0x0e121c0eU, 0x61a3c261U, 0x355f6a35U, 0x57f9ae57U, 0xb9d069b9U, + 0x86911786U, 0xc15899c1U, 0x1d273a1dU, 0x9eb9279eU, 0xe138d9e1U, + 0xf813ebf8U, 0x98b32b98U, 0x11332211U, 0x69bbd269U, 0xd970a9d9U, + 0x8e89078eU, 0x94a73394U, 0x9bb62d9bU, 0x1e223c1eU, 0x87921587U, + 0xe920c9e9U, 0xce4987ceU, 0x55ffaa55U, 0x28785028U, 0xdf7aa5dfU, + 0x8c8f038cU, 0xa1f859a1U, 0x89800989U, 0x0d171a0dU, 0xbfda65bfU, + 0xe631d7e6U, 0x42c68442U, 0x68b8d068U, 0x41c38241U, 0x99b02999U, + 0x2d775a2dU, 0x0f111e0fU, 0xb0cb7bb0U, 0x54fca854U, 0xbbd66dbbU, + 0x163a2c16U, }; + +static const uint32_t Te3[256] = { + 0x6363a5c6U, 0x7c7c84f8U, 0x777799eeU, 0x7b7b8df6U, 0xf2f20dffU, + 0x6b6bbdd6U, 0x6f6fb1deU, 0xc5c55491U, 0x30305060U, 0x01010302U, + 0x6767a9ceU, 0x2b2b7d56U, 0xfefe19e7U, 0xd7d762b5U, 0xababe64dU, + 0x76769aecU, 0xcaca458fU, 0x82829d1fU, 0xc9c94089U, 0x7d7d87faU, + 0xfafa15efU, 0x5959ebb2U, 0x4747c98eU, 0xf0f00bfbU, 0xadadec41U, + 0xd4d467b3U, 0xa2a2fd5fU, 0xafafea45U, 0x9c9cbf23U, 0xa4a4f753U, + 0x727296e4U, 0xc0c05b9bU, 0xb7b7c275U, 0xfdfd1ce1U, 0x9393ae3dU, + 0x26266a4cU, 0x36365a6cU, 0x3f3f417eU, 0xf7f702f5U, 0xcccc4f83U, + 0x34345c68U, 0xa5a5f451U, 0xe5e534d1U, 0xf1f108f9U, 0x717193e2U, + 0xd8d873abU, 0x31315362U, 0x15153f2aU, 0x04040c08U, 0xc7c75295U, + 0x23236546U, 0xc3c35e9dU, 0x18182830U, 0x9696a137U, 0x05050f0aU, + 0x9a9ab52fU, 0x0707090eU, 0x12123624U, 0x80809b1bU, 0xe2e23ddfU, + 0xebeb26cdU, 0x2727694eU, 0xb2b2cd7fU, 0x75759feaU, 0x09091b12U, + 0x83839e1dU, 0x2c2c7458U, 0x1a1a2e34U, 0x1b1b2d36U, 0x6e6eb2dcU, + 0x5a5aeeb4U, 0xa0a0fb5bU, 0x5252f6a4U, 0x3b3b4d76U, 0xd6d661b7U, + 0xb3b3ce7dU, 0x29297b52U, 0xe3e33eddU, 0x2f2f715eU, 0x84849713U, + 0x5353f5a6U, 0xd1d168b9U, 0x00000000U, 0xeded2cc1U, 0x20206040U, + 0xfcfc1fe3U, 0xb1b1c879U, 0x5b5bedb6U, 0x6a6abed4U, 0xcbcb468dU, + 0xbebed967U, 0x39394b72U, 0x4a4ade94U, 0x4c4cd498U, 0x5858e8b0U, + 0xcfcf4a85U, 0xd0d06bbbU, 0xefef2ac5U, 0xaaaae54fU, 0xfbfb16edU, + 0x4343c586U, 0x4d4dd79aU, 0x33335566U, 0x85859411U, 0x4545cf8aU, + 0xf9f910e9U, 0x02020604U, 0x7f7f81feU, 0x5050f0a0U, 0x3c3c4478U, + 0x9f9fba25U, 0xa8a8e34bU, 0x5151f3a2U, 0xa3a3fe5dU, 0x4040c080U, + 0x8f8f8a05U, 0x9292ad3fU, 0x9d9dbc21U, 0x38384870U, 0xf5f504f1U, + 0xbcbcdf63U, 0xb6b6c177U, 0xdada75afU, 0x21216342U, 0x10103020U, + 0xffff1ae5U, 0xf3f30efdU, 0xd2d26dbfU, 0xcdcd4c81U, 0x0c0c1418U, + 0x13133526U, 0xecec2fc3U, 0x5f5fe1beU, 0x9797a235U, 0x4444cc88U, + 0x1717392eU, 0xc4c45793U, 0xa7a7f255U, 0x7e7e82fcU, 0x3d3d477aU, + 0x6464acc8U, 0x5d5de7baU, 0x19192b32U, 0x737395e6U, 0x6060a0c0U, + 0x81819819U, 0x4f4fd19eU, 0xdcdc7fa3U, 0x22226644U, 0x2a2a7e54U, + 0x9090ab3bU, 0x8888830bU, 0x4646ca8cU, 0xeeee29c7U, 0xb8b8d36bU, + 0x14143c28U, 0xdede79a7U, 0x5e5ee2bcU, 0x0b0b1d16U, 0xdbdb76adU, + 0xe0e03bdbU, 0x32325664U, 0x3a3a4e74U, 0x0a0a1e14U, 0x4949db92U, + 0x06060a0cU, 0x24246c48U, 0x5c5ce4b8U, 0xc2c25d9fU, 0xd3d36ebdU, + 0xacacef43U, 0x6262a6c4U, 0x9191a839U, 0x9595a431U, 0xe4e437d3U, + 0x79798bf2U, 0xe7e732d5U, 0xc8c8438bU, 0x3737596eU, 0x6d6db7daU, + 0x8d8d8c01U, 0xd5d564b1U, 0x4e4ed29cU, 0xa9a9e049U, 0x6c6cb4d8U, + 0x5656faacU, 0xf4f407f3U, 0xeaea25cfU, 0x6565afcaU, 0x7a7a8ef4U, + 0xaeaee947U, 0x08081810U, 0xbabad56fU, 0x787888f0U, 0x25256f4aU, + 0x2e2e725cU, 0x1c1c2438U, 0xa6a6f157U, 0xb4b4c773U, 0xc6c65197U, + 0xe8e823cbU, 0xdddd7ca1U, 0x74749ce8U, 0x1f1f213eU, 0x4b4bdd96U, + 0xbdbddc61U, 0x8b8b860dU, 0x8a8a850fU, 0x707090e0U, 0x3e3e427cU, + 0xb5b5c471U, 0x6666aaccU, 0x4848d890U, 0x03030506U, 0xf6f601f7U, + 0x0e0e121cU, 0x6161a3c2U, 0x35355f6aU, 0x5757f9aeU, 0xb9b9d069U, + 0x86869117U, 0xc1c15899U, 0x1d1d273aU, 0x9e9eb927U, 0xe1e138d9U, + 0xf8f813ebU, 0x9898b32bU, 0x11113322U, 0x6969bbd2U, 0xd9d970a9U, + 0x8e8e8907U, 0x9494a733U, 0x9b9bb62dU, 0x1e1e223cU, 0x87879215U, + 0xe9e920c9U, 0xcece4987U, 0x5555ffaaU, 0x28287850U, 0xdfdf7aa5U, + 0x8c8c8f03U, 0xa1a1f859U, 0x89898009U, 0x0d0d171aU, 0xbfbfda65U, + 0xe6e631d7U, 0x4242c684U, 0x6868b8d0U, 0x4141c382U, 0x9999b029U, + 0x2d2d775aU, 0x0f0f111eU, 0xb0b0cb7bU, 0x5454fca8U, 0xbbbbd66dU, + 0x16163a2cU, }; + +static const uint32_t Td0[256] = { + 0x51f4a750U, 0x7e416553U, 0x1a17a4c3U, 0x3a275e96U, 0x3bab6bcbU, + 0x1f9d45f1U, 0xacfa58abU, 0x4be30393U, 0x2030fa55U, 0xad766df6U, + 0x88cc7691U, 0xf5024c25U, 0x4fe5d7fcU, 0xc52acbd7U, 0x26354480U, + 0xb562a38fU, 0xdeb15a49U, 0x25ba1b67U, 0x45ea0e98U, 0x5dfec0e1U, + 0xc32f7502U, 0x814cf012U, 0x8d4697a3U, 0x6bd3f9c6U, 0x038f5fe7U, + 0x15929c95U, 0xbf6d7aebU, 0x955259daU, 0xd4be832dU, 0x587421d3U, + 0x49e06929U, 0x8ec9c844U, 0x75c2896aU, 0xf48e7978U, 0x99583e6bU, + 0x27b971ddU, 0xbee14fb6U, 0xf088ad17U, 0xc920ac66U, 0x7dce3ab4U, + 0x63df4a18U, 0xe51a3182U, 0x97513360U, 0x62537f45U, 0xb16477e0U, + 0xbb6bae84U, 0xfe81a01cU, 0xf9082b94U, 0x70486858U, 0x8f45fd19U, + 0x94de6c87U, 0x527bf8b7U, 0xab73d323U, 0x724b02e2U, 0xe31f8f57U, + 0x6655ab2aU, 0xb2eb2807U, 0x2fb5c203U, 0x86c57b9aU, 0xd33708a5U, + 0x302887f2U, 0x23bfa5b2U, 0x02036abaU, 0xed16825cU, 0x8acf1c2bU, + 0xa779b492U, 0xf307f2f0U, 0x4e69e2a1U, 0x65daf4cdU, 0x0605bed5U, + 0xd134621fU, 0xc4a6fe8aU, 0x342e539dU, 0xa2f355a0U, 0x058ae132U, + 0xa4f6eb75U, 0x0b83ec39U, 0x4060efaaU, 0x5e719f06U, 0xbd6e1051U, + 0x3e218af9U, 0x96dd063dU, 0xdd3e05aeU, 0x4de6bd46U, 0x91548db5U, + 0x71c45d05U, 0x0406d46fU, 0x605015ffU, 0x1998fb24U, 0xd6bde997U, + 0x894043ccU, 0x67d99e77U, 0xb0e842bdU, 0x07898b88U, 0xe7195b38U, + 0x79c8eedbU, 0xa17c0a47U, 0x7c420fe9U, 0xf8841ec9U, 0x00000000U, + 0x09808683U, 0x322bed48U, 0x1e1170acU, 0x6c5a724eU, 0xfd0efffbU, + 0x0f853856U, 0x3daed51eU, 0x362d3927U, 0x0a0fd964U, 0x685ca621U, + 0x9b5b54d1U, 0x24362e3aU, 0x0c0a67b1U, 0x9357e70fU, 0xb4ee96d2U, + 0x1b9b919eU, 0x80c0c54fU, 0x61dc20a2U, 0x5a774b69U, 0x1c121a16U, + 0xe293ba0aU, 0xc0a02ae5U, 0x3c22e043U, 0x121b171dU, 0x0e090d0bU, + 0xf28bc7adU, 0x2db6a8b9U, 0x141ea9c8U, 0x57f11985U, 0xaf75074cU, + 0xee99ddbbU, 0xa37f60fdU, 0xf701269fU, 0x5c72f5bcU, 0x44663bc5U, + 0x5bfb7e34U, 0x8b432976U, 0xcb23c6dcU, 0xb6edfc68U, 0xb8e4f163U, + 0xd731dccaU, 0x42638510U, 0x13972240U, 0x84c61120U, 0x854a247dU, + 0xd2bb3df8U, 0xaef93211U, 0xc729a16dU, 0x1d9e2f4bU, 0xdcb230f3U, + 0x0d8652ecU, 0x77c1e3d0U, 0x2bb3166cU, 0xa970b999U, 0x119448faU, + 0x47e96422U, 0xa8fc8cc4U, 0xa0f03f1aU, 0x567d2cd8U, 0x223390efU, + 0x87494ec7U, 0xd938d1c1U, 0x8ccaa2feU, 0x98d40b36U, 0xa6f581cfU, + 0xa57ade28U, 0xdab78e26U, 0x3fadbfa4U, 0x2c3a9de4U, 0x5078920dU, + 0x6a5fcc9bU, 0x547e4662U, 0xf68d13c2U, 0x90d8b8e8U, 0x2e39f75eU, + 0x82c3aff5U, 0x9f5d80beU, 0x69d0937cU, 0x6fd52da9U, 0xcf2512b3U, + 0xc8ac993bU, 0x10187da7U, 0xe89c636eU, 0xdb3bbb7bU, 0xcd267809U, + 0x6e5918f4U, 0xec9ab701U, 0x834f9aa8U, 0xe6956e65U, 0xaaffe67eU, + 0x21bccf08U, 0xef15e8e6U, 0xbae79bd9U, 0x4a6f36ceU, 0xea9f09d4U, + 0x29b07cd6U, 0x31a4b2afU, 0x2a3f2331U, 0xc6a59430U, 0x35a266c0U, + 0x744ebc37U, 0xfc82caa6U, 0xe090d0b0U, 0x33a7d815U, 0xf104984aU, + 0x41ecdaf7U, 0x7fcd500eU, 0x1791f62fU, 0x764dd68dU, 0x43efb04dU, + 0xccaa4d54U, 0xe49604dfU, 0x9ed1b5e3U, 0x4c6a881bU, 0xc12c1fb8U, + 0x4665517fU, 0x9d5eea04U, 0x018c355dU, 0xfa877473U, 0xfb0b412eU, + 0xb3671d5aU, 0x92dbd252U, 0xe9105633U, 0x6dd64713U, 0x9ad7618cU, + 0x37a10c7aU, 0x59f8148eU, 0xeb133c89U, 0xcea927eeU, 0xb761c935U, + 0xe11ce5edU, 0x7a47b13cU, 0x9cd2df59U, 0x55f2733fU, 0x1814ce79U, + 0x73c737bfU, 0x53f7cdeaU, 0x5ffdaa5bU, 0xdf3d6f14U, 0x7844db86U, + 0xcaaff381U, 0xb968c43eU, 0x3824342cU, 0xc2a3405fU, 0x161dc372U, + 0xbce2250cU, 0x283c498bU, 0xff0d9541U, 0x39a80171U, 0x080cb3deU, + 0xd8b4e49cU, 0x6456c190U, 0x7bcb8461U, 0xd532b670U, 0x486c5c74U, + 0xd0b85742U, }; + +static const uint32_t Td1[256] = { + 0x5051f4a7U, 0x537e4165U, 0xc31a17a4U, 0x963a275eU, 0xcb3bab6bU, + 0xf11f9d45U, 0xabacfa58U, 0x934be303U, 0x552030faU, 0xf6ad766dU, + 0x9188cc76U, 0x25f5024cU, 0xfc4fe5d7U, 0xd7c52acbU, 0x80263544U, + 0x8fb562a3U, 0x49deb15aU, 0x6725ba1bU, 0x9845ea0eU, 0xe15dfec0U, + 0x02c32f75U, 0x12814cf0U, 0xa38d4697U, 0xc66bd3f9U, 0xe7038f5fU, + 0x9515929cU, 0xebbf6d7aU, 0xda955259U, 0x2dd4be83U, 0xd3587421U, + 0x2949e069U, 0x448ec9c8U, 0x6a75c289U, 0x78f48e79U, 0x6b99583eU, + 0xdd27b971U, 0xb6bee14fU, 0x17f088adU, 0x66c920acU, 0xb47dce3aU, + 0x1863df4aU, 0x82e51a31U, 0x60975133U, 0x4562537fU, 0xe0b16477U, + 0x84bb6baeU, 0x1cfe81a0U, 0x94f9082bU, 0x58704868U, 0x198f45fdU, + 0x8794de6cU, 0xb7527bf8U, 0x23ab73d3U, 0xe2724b02U, 0x57e31f8fU, + 0x2a6655abU, 0x07b2eb28U, 0x032fb5c2U, 0x9a86c57bU, 0xa5d33708U, + 0xf2302887U, 0xb223bfa5U, 0xba02036aU, 0x5ced1682U, 0x2b8acf1cU, + 0x92a779b4U, 0xf0f307f2U, 0xa14e69e2U, 0xcd65daf4U, 0xd50605beU, + 0x1fd13462U, 0x8ac4a6feU, 0x9d342e53U, 0xa0a2f355U, 0x32058ae1U, + 0x75a4f6ebU, 0x390b83ecU, 0xaa4060efU, 0x065e719fU, 0x51bd6e10U, + 0xf93e218aU, 0x3d96dd06U, 0xaedd3e05U, 0x464de6bdU, 0xb591548dU, + 0x0571c45dU, 0x6f0406d4U, 0xff605015U, 0x241998fbU, 0x97d6bde9U, + 0xcc894043U, 0x7767d99eU, 0xbdb0e842U, 0x8807898bU, 0x38e7195bU, + 0xdb79c8eeU, 0x47a17c0aU, 0xe97c420fU, 0xc9f8841eU, 0x00000000U, + 0x83098086U, 0x48322bedU, 0xac1e1170U, 0x4e6c5a72U, 0xfbfd0effU, + 0x560f8538U, 0x1e3daed5U, 0x27362d39U, 0x640a0fd9U, 0x21685ca6U, + 0xd19b5b54U, 0x3a24362eU, 0xb10c0a67U, 0x0f9357e7U, 0xd2b4ee96U, + 0x9e1b9b91U, 0x4f80c0c5U, 0xa261dc20U, 0x695a774bU, 0x161c121aU, + 0x0ae293baU, 0xe5c0a02aU, 0x433c22e0U, 0x1d121b17U, 0x0b0e090dU, + 0xadf28bc7U, 0xb92db6a8U, 0xc8141ea9U, 0x8557f119U, 0x4caf7507U, + 0xbbee99ddU, 0xfda37f60U, 0x9ff70126U, 0xbc5c72f5U, 0xc544663bU, + 0x345bfb7eU, 0x768b4329U, 0xdccb23c6U, 0x68b6edfcU, 0x63b8e4f1U, + 0xcad731dcU, 0x10426385U, 0x40139722U, 0x2084c611U, 0x7d854a24U, + 0xf8d2bb3dU, 0x11aef932U, 0x6dc729a1U, 0x4b1d9e2fU, 0xf3dcb230U, + 0xec0d8652U, 0xd077c1e3U, 0x6c2bb316U, 0x99a970b9U, 0xfa119448U, + 0x2247e964U, 0xc4a8fc8cU, 0x1aa0f03fU, 0xd8567d2cU, 0xef223390U, + 0xc787494eU, 0xc1d938d1U, 0xfe8ccaa2U, 0x3698d40bU, 0xcfa6f581U, + 0x28a57adeU, 0x26dab78eU, 0xa43fadbfU, 0xe42c3a9dU, 0x0d507892U, + 0x9b6a5fccU, 0x62547e46U, 0xc2f68d13U, 0xe890d8b8U, 0x5e2e39f7U, + 0xf582c3afU, 0xbe9f5d80U, 0x7c69d093U, 0xa96fd52dU, 0xb3cf2512U, + 0x3bc8ac99U, 0xa710187dU, 0x6ee89c63U, 0x7bdb3bbbU, 0x09cd2678U, + 0xf46e5918U, 0x01ec9ab7U, 0xa8834f9aU, 0x65e6956eU, 0x7eaaffe6U, + 0x0821bccfU, 0xe6ef15e8U, 0xd9bae79bU, 0xce4a6f36U, 0xd4ea9f09U, + 0xd629b07cU, 0xaf31a4b2U, 0x312a3f23U, 0x30c6a594U, 0xc035a266U, + 0x37744ebcU, 0xa6fc82caU, 0xb0e090d0U, 0x1533a7d8U, 0x4af10498U, + 0xf741ecdaU, 0x0e7fcd50U, 0x2f1791f6U, 0x8d764dd6U, 0x4d43efb0U, + 0x54ccaa4dU, 0xdfe49604U, 0xe39ed1b5U, 0x1b4c6a88U, 0xb8c12c1fU, + 0x7f466551U, 0x049d5eeaU, 0x5d018c35U, 0x73fa8774U, 0x2efb0b41U, + 0x5ab3671dU, 0x5292dbd2U, 0x33e91056U, 0x136dd647U, 0x8c9ad761U, + 0x7a37a10cU, 0x8e59f814U, 0x89eb133cU, 0xeecea927U, 0x35b761c9U, + 0xede11ce5U, 0x3c7a47b1U, 0x599cd2dfU, 0x3f55f273U, 0x791814ceU, + 0xbf73c737U, 0xea53f7cdU, 0x5b5ffdaaU, 0x14df3d6fU, 0x867844dbU, + 0x81caaff3U, 0x3eb968c4U, 0x2c382434U, 0x5fc2a340U, 0x72161dc3U, + 0x0cbce225U, 0x8b283c49U, 0x41ff0d95U, 0x7139a801U, 0xde080cb3U, + 0x9cd8b4e4U, 0x906456c1U, 0x617bcb84U, 0x70d532b6U, 0x74486c5cU, + 0x42d0b857U, }; + +static const uint32_t Td2[256] = { + 0xa75051f4U, 0x65537e41U, 0xa4c31a17U, 0x5e963a27U, 0x6bcb3babU, + 0x45f11f9dU, 0x58abacfaU, 0x03934be3U, 0xfa552030U, 0x6df6ad76U, + 0x769188ccU, 0x4c25f502U, 0xd7fc4fe5U, 0xcbd7c52aU, 0x44802635U, + 0xa38fb562U, 0x5a49deb1U, 0x1b6725baU, 0x0e9845eaU, 0xc0e15dfeU, + 0x7502c32fU, 0xf012814cU, 0x97a38d46U, 0xf9c66bd3U, 0x5fe7038fU, + 0x9c951592U, 0x7aebbf6dU, 0x59da9552U, 0x832dd4beU, 0x21d35874U, + 0x692949e0U, 0xc8448ec9U, 0x896a75c2U, 0x7978f48eU, 0x3e6b9958U, + 0x71dd27b9U, 0x4fb6bee1U, 0xad17f088U, 0xac66c920U, 0x3ab47dceU, + 0x4a1863dfU, 0x3182e51aU, 0x33609751U, 0x7f456253U, 0x77e0b164U, + 0xae84bb6bU, 0xa01cfe81U, 0x2b94f908U, 0x68587048U, 0xfd198f45U, + 0x6c8794deU, 0xf8b7527bU, 0xd323ab73U, 0x02e2724bU, 0x8f57e31fU, + 0xab2a6655U, 0x2807b2ebU, 0xc2032fb5U, 0x7b9a86c5U, 0x08a5d337U, + 0x87f23028U, 0xa5b223bfU, 0x6aba0203U, 0x825ced16U, 0x1c2b8acfU, + 0xb492a779U, 0xf2f0f307U, 0xe2a14e69U, 0xf4cd65daU, 0xbed50605U, + 0x621fd134U, 0xfe8ac4a6U, 0x539d342eU, 0x55a0a2f3U, 0xe132058aU, + 0xeb75a4f6U, 0xec390b83U, 0xefaa4060U, 0x9f065e71U, 0x1051bd6eU, + 0x8af93e21U, 0x063d96ddU, 0x05aedd3eU, 0xbd464de6U, 0x8db59154U, + 0x5d0571c4U, 0xd46f0406U, 0x15ff6050U, 0xfb241998U, 0xe997d6bdU, + 0x43cc8940U, 0x9e7767d9U, 0x42bdb0e8U, 0x8b880789U, 0x5b38e719U, + 0xeedb79c8U, 0x0a47a17cU, 0x0fe97c42U, 0x1ec9f884U, 0x00000000U, + 0x86830980U, 0xed48322bU, 0x70ac1e11U, 0x724e6c5aU, 0xfffbfd0eU, + 0x38560f85U, 0xd51e3daeU, 0x3927362dU, 0xd9640a0fU, 0xa621685cU, + 0x54d19b5bU, 0x2e3a2436U, 0x67b10c0aU, 0xe70f9357U, 0x96d2b4eeU, + 0x919e1b9bU, 0xc54f80c0U, 0x20a261dcU, 0x4b695a77U, 0x1a161c12U, + 0xba0ae293U, 0x2ae5c0a0U, 0xe0433c22U, 0x171d121bU, 0x0d0b0e09U, + 0xc7adf28bU, 0xa8b92db6U, 0xa9c8141eU, 0x198557f1U, 0x074caf75U, + 0xddbbee99U, 0x60fda37fU, 0x269ff701U, 0xf5bc5c72U, 0x3bc54466U, + 0x7e345bfbU, 0x29768b43U, 0xc6dccb23U, 0xfc68b6edU, 0xf163b8e4U, + 0xdccad731U, 0x85104263U, 0x22401397U, 0x112084c6U, 0x247d854aU, + 0x3df8d2bbU, 0x3211aef9U, 0xa16dc729U, 0x2f4b1d9eU, 0x30f3dcb2U, + 0x52ec0d86U, 0xe3d077c1U, 0x166c2bb3U, 0xb999a970U, 0x48fa1194U, + 0x642247e9U, 0x8cc4a8fcU, 0x3f1aa0f0U, 0x2cd8567dU, 0x90ef2233U, + 0x4ec78749U, 0xd1c1d938U, 0xa2fe8ccaU, 0x0b3698d4U, 0x81cfa6f5U, + 0xde28a57aU, 0x8e26dab7U, 0xbfa43fadU, 0x9de42c3aU, 0x920d5078U, + 0xcc9b6a5fU, 0x4662547eU, 0x13c2f68dU, 0xb8e890d8U, 0xf75e2e39U, + 0xaff582c3U, 0x80be9f5dU, 0x937c69d0U, 0x2da96fd5U, 0x12b3cf25U, + 0x993bc8acU, 0x7da71018U, 0x636ee89cU, 0xbb7bdb3bU, 0x7809cd26U, + 0x18f46e59U, 0xb701ec9aU, 0x9aa8834fU, 0x6e65e695U, 0xe67eaaffU, + 0xcf0821bcU, 0xe8e6ef15U, 0x9bd9bae7U, 0x36ce4a6fU, 0x09d4ea9fU, + 0x7cd629b0U, 0xb2af31a4U, 0x23312a3fU, 0x9430c6a5U, 0x66c035a2U, + 0xbc37744eU, 0xcaa6fc82U, 0xd0b0e090U, 0xd81533a7U, 0x984af104U, + 0xdaf741ecU, 0x500e7fcdU, 0xf62f1791U, 0xd68d764dU, 0xb04d43efU, + 0x4d54ccaaU, 0x04dfe496U, 0xb5e39ed1U, 0x881b4c6aU, 0x1fb8c12cU, + 0x517f4665U, 0xea049d5eU, 0x355d018cU, 0x7473fa87U, 0x412efb0bU, + 0x1d5ab367U, 0xd25292dbU, 0x5633e910U, 0x47136dd6U, 0x618c9ad7U, + 0x0c7a37a1U, 0x148e59f8U, 0x3c89eb13U, 0x27eecea9U, 0xc935b761U, + 0xe5ede11cU, 0xb13c7a47U, 0xdf599cd2U, 0x733f55f2U, 0xce791814U, + 0x37bf73c7U, 0xcdea53f7U, 0xaa5b5ffdU, 0x6f14df3dU, 0xdb867844U, + 0xf381caafU, 0xc43eb968U, 0x342c3824U, 0x405fc2a3U, 0xc372161dU, + 0x250cbce2U, 0x498b283cU, 0x9541ff0dU, 0x017139a8U, 0xb3de080cU, + 0xe49cd8b4U, 0xc1906456U, 0x84617bcbU, 0xb670d532U, 0x5c74486cU, + 0x5742d0b8U, }; + +static const uint32_t Td3[256] = { + 0xf4a75051U, 0x4165537eU, 0x17a4c31aU, 0x275e963aU, 0xab6bcb3bU, + 0x9d45f11fU, 0xfa58abacU, 0xe303934bU, 0x30fa5520U, 0x766df6adU, + 0xcc769188U, 0x024c25f5U, 0xe5d7fc4fU, 0x2acbd7c5U, 0x35448026U, + 0x62a38fb5U, 0xb15a49deU, 0xba1b6725U, 0xea0e9845U, 0xfec0e15dU, + 0x2f7502c3U, 0x4cf01281U, 0x4697a38dU, 0xd3f9c66bU, 0x8f5fe703U, + 0x929c9515U, 0x6d7aebbfU, 0x5259da95U, 0xbe832dd4U, 0x7421d358U, + 0xe0692949U, 0xc9c8448eU, 0xc2896a75U, 0x8e7978f4U, 0x583e6b99U, + 0xb971dd27U, 0xe14fb6beU, 0x88ad17f0U, 0x20ac66c9U, 0xce3ab47dU, + 0xdf4a1863U, 0x1a3182e5U, 0x51336097U, 0x537f4562U, 0x6477e0b1U, + 0x6bae84bbU, 0x81a01cfeU, 0x082b94f9U, 0x48685870U, 0x45fd198fU, + 0xde6c8794U, 0x7bf8b752U, 0x73d323abU, 0x4b02e272U, 0x1f8f57e3U, + 0x55ab2a66U, 0xeb2807b2U, 0xb5c2032fU, 0xc57b9a86U, 0x3708a5d3U, + 0x2887f230U, 0xbfa5b223U, 0x036aba02U, 0x16825cedU, 0xcf1c2b8aU, + 0x79b492a7U, 0x07f2f0f3U, 0x69e2a14eU, 0xdaf4cd65U, 0x05bed506U, + 0x34621fd1U, 0xa6fe8ac4U, 0x2e539d34U, 0xf355a0a2U, 0x8ae13205U, + 0xf6eb75a4U, 0x83ec390bU, 0x60efaa40U, 0x719f065eU, 0x6e1051bdU, + 0x218af93eU, 0xdd063d96U, 0x3e05aeddU, 0xe6bd464dU, 0x548db591U, + 0xc45d0571U, 0x06d46f04U, 0x5015ff60U, 0x98fb2419U, 0xbde997d6U, + 0x4043cc89U, 0xd99e7767U, 0xe842bdb0U, 0x898b8807U, 0x195b38e7U, + 0xc8eedb79U, 0x7c0a47a1U, 0x420fe97cU, 0x841ec9f8U, 0x00000000U, + 0x80868309U, 0x2bed4832U, 0x1170ac1eU, 0x5a724e6cU, 0x0efffbfdU, + 0x8538560fU, 0xaed51e3dU, 0x2d392736U, 0x0fd9640aU, 0x5ca62168U, + 0x5b54d19bU, 0x362e3a24U, 0x0a67b10cU, 0x57e70f93U, 0xee96d2b4U, + 0x9b919e1bU, 0xc0c54f80U, 0xdc20a261U, 0x774b695aU, 0x121a161cU, + 0x93ba0ae2U, 0xa02ae5c0U, 0x22e0433cU, 0x1b171d12U, 0x090d0b0eU, + 0x8bc7adf2U, 0xb6a8b92dU, 0x1ea9c814U, 0xf1198557U, 0x75074cafU, + 0x99ddbbeeU, 0x7f60fda3U, 0x01269ff7U, 0x72f5bc5cU, 0x663bc544U, + 0xfb7e345bU, 0x4329768bU, 0x23c6dccbU, 0xedfc68b6U, 0xe4f163b8U, + 0x31dccad7U, 0x63851042U, 0x97224013U, 0xc6112084U, 0x4a247d85U, + 0xbb3df8d2U, 0xf93211aeU, 0x29a16dc7U, 0x9e2f4b1dU, 0xb230f3dcU, + 0x8652ec0dU, 0xc1e3d077U, 0xb3166c2bU, 0x70b999a9U, 0x9448fa11U, + 0xe9642247U, 0xfc8cc4a8U, 0xf03f1aa0U, 0x7d2cd856U, 0x3390ef22U, + 0x494ec787U, 0x38d1c1d9U, 0xcaa2fe8cU, 0xd40b3698U, 0xf581cfa6U, + 0x7ade28a5U, 0xb78e26daU, 0xadbfa43fU, 0x3a9de42cU, 0x78920d50U, + 0x5fcc9b6aU, 0x7e466254U, 0x8d13c2f6U, 0xd8b8e890U, 0x39f75e2eU, + 0xc3aff582U, 0x5d80be9fU, 0xd0937c69U, 0xd52da96fU, 0x2512b3cfU, + 0xac993bc8U, 0x187da710U, 0x9c636ee8U, 0x3bbb7bdbU, 0x267809cdU, + 0x5918f46eU, 0x9ab701ecU, 0x4f9aa883U, 0x956e65e6U, 0xffe67eaaU, + 0xbccf0821U, 0x15e8e6efU, 0xe79bd9baU, 0x6f36ce4aU, 0x9f09d4eaU, + 0xb07cd629U, 0xa4b2af31U, 0x3f23312aU, 0xa59430c6U, 0xa266c035U, + 0x4ebc3774U, 0x82caa6fcU, 0x90d0b0e0U, 0xa7d81533U, 0x04984af1U, + 0xecdaf741U, 0xcd500e7fU, 0x91f62f17U, 0x4dd68d76U, 0xefb04d43U, + 0xaa4d54ccU, 0x9604dfe4U, 0xd1b5e39eU, 0x6a881b4cU, 0x2c1fb8c1U, + 0x65517f46U, 0x5eea049dU, 0x8c355d01U, 0x877473faU, 0x0b412efbU, + 0x671d5ab3U, 0xdbd25292U, 0x105633e9U, 0xd647136dU, 0xd7618c9aU, + 0xa10c7a37U, 0xf8148e59U, 0x133c89ebU, 0xa927eeceU, 0x61c935b7U, + 0x1ce5ede1U, 0x47b13c7aU, 0xd2df599cU, 0xf2733f55U, 0x14ce7918U, + 0xc737bf73U, 0xf7cdea53U, 0xfdaa5b5fU, 0x3d6f14dfU, 0x44db8678U, + 0xaff381caU, 0x68c43eb9U, 0x24342c38U, 0xa3405fc2U, 0x1dc37216U, + 0xe2250cbcU, 0x3c498b28U, 0x0d9541ffU, 0xa8017139U, 0x0cb3de08U, + 0xb4e49cd8U, 0x56c19064U, 0xcb84617bU, 0x32b670d5U, 0x6c5c7448U, + 0xb85742d0U, }; + +static const uint8_t Td4[256] = { + 0x52U, 0x09U, 0x6aU, 0xd5U, 0x30U, 0x36U, 0xa5U, 0x38U, 0xbfU, 0x40U, 0xa3U, + 0x9eU, 0x81U, 0xf3U, 0xd7U, 0xfbU, 0x7cU, 0xe3U, 0x39U, 0x82U, 0x9bU, 0x2fU, + 0xffU, 0x87U, 0x34U, 0x8eU, 0x43U, 0x44U, 0xc4U, 0xdeU, 0xe9U, 0xcbU, 0x54U, + 0x7bU, 0x94U, 0x32U, 0xa6U, 0xc2U, 0x23U, 0x3dU, 0xeeU, 0x4cU, 0x95U, 0x0bU, + 0x42U, 0xfaU, 0xc3U, 0x4eU, 0x08U, 0x2eU, 0xa1U, 0x66U, 0x28U, 0xd9U, 0x24U, + 0xb2U, 0x76U, 0x5bU, 0xa2U, 0x49U, 0x6dU, 0x8bU, 0xd1U, 0x25U, 0x72U, 0xf8U, + 0xf6U, 0x64U, 0x86U, 0x68U, 0x98U, 0x16U, 0xd4U, 0xa4U, 0x5cU, 0xccU, 0x5dU, + 0x65U, 0xb6U, 0x92U, 0x6cU, 0x70U, 0x48U, 0x50U, 0xfdU, 0xedU, 0xb9U, 0xdaU, + 0x5eU, 0x15U, 0x46U, 0x57U, 0xa7U, 0x8dU, 0x9dU, 0x84U, 0x90U, 0xd8U, 0xabU, + 0x00U, 0x8cU, 0xbcU, 0xd3U, 0x0aU, 0xf7U, 0xe4U, 0x58U, 0x05U, 0xb8U, 0xb3U, + 0x45U, 0x06U, 0xd0U, 0x2cU, 0x1eU, 0x8fU, 0xcaU, 0x3fU, 0x0fU, 0x02U, 0xc1U, + 0xafU, 0xbdU, 0x03U, 0x01U, 0x13U, 0x8aU, 0x6bU, 0x3aU, 0x91U, 0x11U, 0x41U, + 0x4fU, 0x67U, 0xdcU, 0xeaU, 0x97U, 0xf2U, 0xcfU, 0xceU, 0xf0U, 0xb4U, 0xe6U, + 0x73U, 0x96U, 0xacU, 0x74U, 0x22U, 0xe7U, 0xadU, 0x35U, 0x85U, 0xe2U, 0xf9U, + 0x37U, 0xe8U, 0x1cU, 0x75U, 0xdfU, 0x6eU, 0x47U, 0xf1U, 0x1aU, 0x71U, 0x1dU, + 0x29U, 0xc5U, 0x89U, 0x6fU, 0xb7U, 0x62U, 0x0eU, 0xaaU, 0x18U, 0xbeU, 0x1bU, + 0xfcU, 0x56U, 0x3eU, 0x4bU, 0xc6U, 0xd2U, 0x79U, 0x20U, 0x9aU, 0xdbU, 0xc0U, + 0xfeU, 0x78U, 0xcdU, 0x5aU, 0xf4U, 0x1fU, 0xddU, 0xa8U, 0x33U, 0x88U, 0x07U, + 0xc7U, 0x31U, 0xb1U, 0x12U, 0x10U, 0x59U, 0x27U, 0x80U, 0xecU, 0x5fU, 0x60U, + 0x51U, 0x7fU, 0xa9U, 0x19U, 0xb5U, 0x4aU, 0x0dU, 0x2dU, 0xe5U, 0x7aU, 0x9fU, + 0x93U, 0xc9U, 0x9cU, 0xefU, 0xa0U, 0xe0U, 0x3bU, 0x4dU, 0xaeU, 0x2aU, 0xf5U, + 0xb0U, 0xc8U, 0xebU, 0xbbU, 0x3cU, 0x83U, 0x53U, 0x99U, 0x61U, 0x17U, 0x2bU, + 0x04U, 0x7eU, 0xbaU, 0x77U, 0xd6U, 0x26U, 0xe1U, 0x69U, 0x14U, 0x63U, 0x55U, + 0x21U, 0x0cU, 0x7dU, }; + +static const uint8_t Te4[256] = { + 0x63U, 0x7cU, 0x77U, 0x7bU, 0xf2U, 0x6bU, 0x6fU, 0xc5U, 0x30U, 0x01U, 0x67U, + 0x2bU, 0xfeU, 0xd7U, 0xabU, 0x76U, 0xcaU, 0x82U, 0xc9U, 0x7dU, 0xfaU, 0x59U, + 0x47U, 0xf0U, 0xadU, 0xd4U, 0xa2U, 0xafU, 0x9cU, 0xa4U, 0x72U, 0xc0U, 0xb7U, + 0xfdU, 0x93U, 0x26U, 0x36U, 0x3fU, 0xf7U, 0xccU, 0x34U, 0xa5U, 0xe5U, 0xf1U, + 0x71U, 0xd8U, 0x31U, 0x15U, 0x04U, 0xc7U, 0x23U, 0xc3U, 0x18U, 0x96U, 0x05U, + 0x9aU, 0x07U, 0x12U, 0x80U, 0xe2U, 0xebU, 0x27U, 0xb2U, 0x75U, 0x09U, 0x83U, + 0x2cU, 0x1aU, 0x1bU, 0x6eU, 0x5aU, 0xa0U, 0x52U, 0x3bU, 0xd6U, 0xb3U, 0x29U, + 0xe3U, 0x2fU, 0x84U, 0x53U, 0xd1U, 0x00U, 0xedU, 0x20U, 0xfcU, 0xb1U, 0x5bU, + 0x6aU, 0xcbU, 0xbeU, 0x39U, 0x4aU, 0x4cU, 0x58U, 0xcfU, 0xd0U, 0xefU, 0xaaU, + 0xfbU, 0x43U, 0x4dU, 0x33U, 0x85U, 0x45U, 0xf9U, 0x02U, 0x7fU, 0x50U, 0x3cU, + 0x9fU, 0xa8U, 0x51U, 0xa3U, 0x40U, 0x8fU, 0x92U, 0x9dU, 0x38U, 0xf5U, 0xbcU, + 0xb6U, 0xdaU, 0x21U, 0x10U, 0xffU, 0xf3U, 0xd2U, 0xcdU, 0x0cU, 0x13U, 0xecU, + 0x5fU, 0x97U, 0x44U, 0x17U, 0xc4U, 0xa7U, 0x7eU, 0x3dU, 0x64U, 0x5dU, 0x19U, + 0x73U, 0x60U, 0x81U, 0x4fU, 0xdcU, 0x22U, 0x2aU, 0x90U, 0x88U, 0x46U, 0xeeU, + 0xb8U, 0x14U, 0xdeU, 0x5eU, 0x0bU, 0xdbU, 0xe0U, 0x32U, 0x3aU, 0x0aU, 0x49U, + 0x06U, 0x24U, 0x5cU, 0xc2U, 0xd3U, 0xacU, 0x62U, 0x91U, 0x95U, 0xe4U, 0x79U, + 0xe7U, 0xc8U, 0x37U, 0x6dU, 0x8dU, 0xd5U, 0x4eU, 0xa9U, 0x6cU, 0x56U, 0xf4U, + 0xeaU, 0x65U, 0x7aU, 0xaeU, 0x08U, 0xbaU, 0x78U, 0x25U, 0x2eU, 0x1cU, 0xa6U, + 0xb4U, 0xc6U, 0xe8U, 0xddU, 0x74U, 0x1fU, 0x4bU, 0xbdU, 0x8bU, 0x8aU, 0x70U, + 0x3eU, 0xb5U, 0x66U, 0x48U, 0x03U, 0xf6U, 0x0eU, 0x61U, 0x35U, 0x57U, 0xb9U, + 0x86U, 0xc1U, 0x1dU, 0x9eU, 0xe1U, 0xf8U, 0x98U, 0x11U, 0x69U, 0xd9U, 0x8eU, + 0x94U, 0x9bU, 0x1eU, 0x87U, 0xe9U, 0xceU, 0x55U, 0x28U, 0xdfU, 0x8cU, 0xa1U, + 0x89U, 0x0dU, 0xbfU, 0xe6U, 0x42U, 0x68U, 0x41U, 0x99U, 0x2dU, 0x0fU, 0xb0U, + 0x54U, 0xbbU, 0x16U}; + +static const uint32_t rcon[] = { + 0x01000000, 0x02000000, 0x04000000, 0x08000000, 0x10000000, + 0x20000000, 0x40000000, 0x80000000, 0x1B000000, 0x36000000, + /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */ +}; + +int AES_set_encrypt_key(const uint8_t *key, const unsigned bits, AES_KEY *aeskey) { + uint32_t *rk; + int i = 0; + uint32_t temp; + + if (!key || !aeskey) { + return -1; + } + + switch (bits) { + case 128: + aeskey->rounds = 10; + break; + case 192: + aeskey->rounds = 12; + break; + case 256: + aeskey->rounds = 14; + break; + default: + return -2; + } + + rk = aeskey->rd_key; + + rk[0] = GETU32(key); + rk[1] = GETU32(key + 4); + rk[2] = GETU32(key + 8); + rk[3] = GETU32(key + 12); + if (bits == 128) { + while (1) { + temp = rk[3]; + rk[4] = rk[0] ^ (Te2[(temp >> 16) & 0xff] & 0xff000000) ^ + (Te3[(temp >> 8) & 0xff] & 0x00ff0000) ^ + (Te0[(temp) & 0xff] & 0x0000ff00) ^ + (Te1[(temp >> 24)] & 0x000000ff) ^ rcon[i]; + rk[5] = rk[1] ^ rk[4]; + rk[6] = rk[2] ^ rk[5]; + rk[7] = rk[3] ^ rk[6]; + if (++i == 10) { + return 0; + } + rk += 4; + } + } + rk[4] = GETU32(key + 16); + rk[5] = GETU32(key + 20); + if (bits == 192) { + while (1) { + temp = rk[5]; + rk[6] = rk[0] ^ (Te2[(temp >> 16) & 0xff] & 0xff000000) ^ + (Te3[(temp >> 8) & 0xff] & 0x00ff0000) ^ + (Te0[(temp) & 0xff] & 0x0000ff00) ^ + (Te1[(temp >> 24)] & 0x000000ff) ^ rcon[i]; + rk[7] = rk[1] ^ rk[6]; + rk[8] = rk[2] ^ rk[7]; + rk[9] = rk[3] ^ rk[8]; + if (++i == 8) { + return 0; + } + rk[10] = rk[4] ^ rk[9]; + rk[11] = rk[5] ^ rk[10]; + rk += 6; + } + } + rk[6] = GETU32(key + 24); + rk[7] = GETU32(key + 28); + if (bits == 256) { + while (1) { + temp = rk[7]; + rk[8] = rk[0] ^ (Te2[(temp >> 16) & 0xff] & 0xff000000) ^ + (Te3[(temp >> 8) & 0xff] & 0x00ff0000) ^ + (Te0[(temp) & 0xff] & 0x0000ff00) ^ + (Te1[(temp >> 24)] & 0x000000ff) ^ rcon[i]; + rk[9] = rk[1] ^ rk[8]; + rk[10] = rk[2] ^ rk[9]; + rk[11] = rk[3] ^ rk[10]; + if (++i == 7) { + return 0; + } + temp = rk[11]; + rk[12] = rk[4] ^ (Te2[(temp >> 24)] & 0xff000000) ^ + (Te3[(temp >> 16) & 0xff] & 0x00ff0000) ^ + (Te0[(temp >> 8) & 0xff] & 0x0000ff00) ^ + (Te1[(temp) & 0xff] & 0x000000ff); + rk[13] = rk[5] ^ rk[12]; + rk[14] = rk[6] ^ rk[13]; + rk[15] = rk[7] ^ rk[14]; + + rk += 8; + } + } + return 0; +} + +int AES_set_decrypt_key(const unsigned char *key, const unsigned bits, + AES_KEY *aeskey) { + uint32_t *rk; + int i, j, status; + uint32_t temp; + + /* first, start with an encryption schedule */ + status = AES_set_encrypt_key(key, bits, aeskey); + if (status < 0) { + return status; + } + + rk = aeskey->rd_key; + + /* invert the order of the round keys: */ + for (i = 0, j = 4 * aeskey->rounds; i < j; i += 4, j -= 4) { + temp = rk[i]; + rk[i] = rk[j]; + rk[j] = temp; + temp = rk[i + 1]; + rk[i + 1] = rk[j + 1]; + rk[j + 1] = temp; + temp = rk[i + 2]; + rk[i + 2] = rk[j + 2]; + rk[j + 2] = temp; + temp = rk[i + 3]; + rk[i + 3] = rk[j + 3]; + rk[j + 3] = temp; + } + /* apply the inverse MixColumn transform to all round keys but the first and + * the last: */ + for (i = 1; i < aeskey->rounds; i++) { + rk += 4; + rk[0] = + Td0[Te1[(rk[0] >> 24)] & 0xff] ^ Td1[Te1[(rk[0] >> 16) & 0xff] & 0xff] ^ + Td2[Te1[(rk[0] >> 8) & 0xff] & 0xff] ^ Td3[Te1[(rk[0]) & 0xff] & 0xff]; + rk[1] = + Td0[Te1[(rk[1] >> 24)] & 0xff] ^ Td1[Te1[(rk[1] >> 16) & 0xff] & 0xff] ^ + Td2[Te1[(rk[1] >> 8) & 0xff] & 0xff] ^ Td3[Te1[(rk[1]) & 0xff] & 0xff]; + rk[2] = + Td0[Te1[(rk[2] >> 24)] & 0xff] ^ Td1[Te1[(rk[2] >> 16) & 0xff] & 0xff] ^ + Td2[Te1[(rk[2] >> 8) & 0xff] & 0xff] ^ Td3[Te1[(rk[2]) & 0xff] & 0xff]; + rk[3] = + Td0[Te1[(rk[3] >> 24)] & 0xff] ^ Td1[Te1[(rk[3] >> 16) & 0xff] & 0xff] ^ + Td2[Te1[(rk[3] >> 8) & 0xff] & 0xff] ^ Td3[Te1[(rk[3]) & 0xff] & 0xff]; + } + return 0; +} + +void AES_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key) { + const uint32_t *rk; + uint32_t s0, s1, s2, s3, t0, t1, t2, t3; +#ifndef FULL_UNROLL + int r; +#endif /* ?FULL_UNROLL */ + + assert(in && out && key); + rk = key->rd_key; + + /* map byte array block to cipher state + * and add initial round key: */ + s0 = GETU32(in) ^ rk[0]; + s1 = GETU32(in + 4) ^ rk[1]; + s2 = GETU32(in + 8) ^ rk[2]; + s3 = GETU32(in + 12) ^ rk[3]; +#ifdef FULL_UNROLL + /* round 1: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ + Te3[s3 & 0xff] ^ rk[4]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ + Te3[s0 & 0xff] ^ rk[5]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ + Te3[s1 & 0xff] ^ rk[6]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ + Te3[s2 & 0xff] ^ rk[7]; + /* round 2: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ + Te3[t3 & 0xff] ^ rk[8]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ + Te3[t0 & 0xff] ^ rk[9]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ + Te3[t1 & 0xff] ^ rk[10]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ + Te3[t2 & 0xff] ^ rk[11]; + /* round 3: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ + Te3[s3 & 0xff] ^ rk[12]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ + Te3[s0 & 0xff] ^ rk[13]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ + Te3[s1 & 0xff] ^ rk[14]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ + Te3[s2 & 0xff] ^ rk[15]; + /* round 4: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ + Te3[t3 & 0xff] ^ rk[16]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ + Te3[t0 & 0xff] ^ rk[17]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ + Te3[t1 & 0xff] ^ rk[18]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ + Te3[t2 & 0xff] ^ rk[19]; + /* round 5: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ + Te3[s3 & 0xff] ^ rk[20]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ + Te3[s0 & 0xff] ^ rk[21]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ + Te3[s1 & 0xff] ^ rk[22]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ + Te3[s2 & 0xff] ^ rk[23]; + /* round 6: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ + Te3[t3 & 0xff] ^ rk[24]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ + Te3[t0 & 0xff] ^ rk[25]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ + Te3[t1 & 0xff] ^ rk[26]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ + Te3[t2 & 0xff] ^ rk[27]; + /* round 7: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ + Te3[s3 & 0xff] ^ rk[28]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ + Te3[s0 & 0xff] ^ rk[29]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ + Te3[s1 & 0xff] ^ rk[30]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ + Te3[s2 & 0xff] ^ rk[31]; + /* round 8: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ + Te3[t3 & 0xff] ^ rk[32]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ + Te3[t0 & 0xff] ^ rk[33]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ + Te3[t1 & 0xff] ^ rk[34]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ + Te3[t2 & 0xff] ^ rk[35]; + /* round 9: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ + Te3[s3 & 0xff] ^ rk[36]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ + Te3[s0 & 0xff] ^ rk[37]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ + Te3[s1 & 0xff] ^ rk[38]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ + Te3[s2 & 0xff] ^ rk[39]; + if (key->rounds > 10) { + /* round 10: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ + Te3[t3 & 0xff] ^ rk[40]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ + Te3[t0 & 0xff] ^ rk[41]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ + Te3[t1 & 0xff] ^ rk[42]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ + Te3[t2 & 0xff] ^ rk[43]; + /* round 11: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ + Te3[s3 & 0xff] ^ rk[44]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ + Te3[s0 & 0xff] ^ rk[45]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ + Te3[s1 & 0xff] ^ rk[46]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ + Te3[s2 & 0xff] ^ rk[47]; + if (key->rounds > 12) { + /* round 12: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ + Te3[t3 & 0xff] ^ rk[48]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ + Te3[t0 & 0xff] ^ rk[49]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ + Te3[t1 & 0xff] ^ rk[50]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ + Te3[t2 & 0xff] ^ rk[51]; + /* round 13: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ + Te3[s3 & 0xff] ^ rk[52]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ + Te3[s0 & 0xff] ^ rk[53]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ + Te3[s1 & 0xff] ^ rk[54]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ + Te3[s2 & 0xff] ^ rk[55]; + } + } + rk += key->rounds << 2; +#else /* !FULL_UNROLL */ + /* + * Nr - 1 full rounds: + */ + r = key->rounds >> 1; + for (;;) { + t0 = Te0[(s0 >> 24)] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ + Te3[(s3) & 0xff] ^ rk[4]; + t1 = Te0[(s1 >> 24)] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ + Te3[(s0) & 0xff] ^ rk[5]; + t2 = Te0[(s2 >> 24)] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ + Te3[(s1) & 0xff] ^ rk[6]; + t3 = Te0[(s3 >> 24)] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ + Te3[(s2) & 0xff] ^ rk[7]; + + rk += 8; + if (--r == 0) { + break; + } + + s0 = Te0[(t0 >> 24)] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ + Te3[(t3) & 0xff] ^ rk[0]; + s1 = Te0[(t1 >> 24)] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ + Te3[(t0) & 0xff] ^ rk[1]; + s2 = Te0[(t2 >> 24)] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ + Te3[(t1) & 0xff] ^ rk[2]; + s3 = Te0[(t3 >> 24)] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ + Te3[(t2) & 0xff] ^ rk[3]; + } +#endif /* ?FULL_UNROLL */ + /* apply last round and map cipher state to byte array block: */ + s0 = (Te2[(t0 >> 24)] & 0xff000000) ^ (Te3[(t1 >> 16) & 0xff] & 0x00ff0000) ^ + (Te0[(t2 >> 8) & 0xff] & 0x0000ff00) ^ (Te1[(t3) & 0xff] & 0x000000ff) ^ + rk[0]; + PUTU32(out, s0); + s1 = (Te2[(t1 >> 24)] & 0xff000000) ^ (Te3[(t2 >> 16) & 0xff] & 0x00ff0000) ^ + (Te0[(t3 >> 8) & 0xff] & 0x0000ff00) ^ (Te1[(t0) & 0xff] & 0x000000ff) ^ + rk[1]; + PUTU32(out + 4, s1); + s2 = (Te2[(t2 >> 24)] & 0xff000000) ^ (Te3[(t3 >> 16) & 0xff] & 0x00ff0000) ^ + (Te0[(t0 >> 8) & 0xff] & 0x0000ff00) ^ (Te1[(t1) & 0xff] & 0x000000ff) ^ + rk[2]; + PUTU32(out + 8, s2); + s3 = (Te2[(t3 >> 24)] & 0xff000000) ^ (Te3[(t0 >> 16) & 0xff] & 0x00ff0000) ^ + (Te0[(t1 >> 8) & 0xff] & 0x0000ff00) ^ (Te1[(t2) & 0xff] & 0x000000ff) ^ + rk[3]; + PUTU32(out + 12, s3); +} + +void AES_decrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key) { + const uint32_t *rk; + uint32_t s0, s1, s2, s3, t0, t1, t2, t3; +#ifndef FULL_UNROLL + int r; +#endif /* ?FULL_UNROLL */ + + assert(in && out && key); + rk = key->rd_key; + + /* map byte array block to cipher state + * and add initial round key: */ + s0 = GETU32(in) ^ rk[0]; + s1 = GETU32(in + 4) ^ rk[1]; + s2 = GETU32(in + 8) ^ rk[2]; + s3 = GETU32(in + 12) ^ rk[3]; +#ifdef FULL_UNROLL + /* round 1: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ + Td3[s1 & 0xff] ^ rk[4]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ + Td3[s2 & 0xff] ^ rk[5]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ + Td3[s3 & 0xff] ^ rk[6]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ + Td3[s0 & 0xff] ^ rk[7]; + /* round 2: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ + Td3[t1 & 0xff] ^ rk[8]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ + Td3[t2 & 0xff] ^ rk[9]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ + Td3[t3 & 0xff] ^ rk[10]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ + Td3[t0 & 0xff] ^ rk[11]; + /* round 3: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ + Td3[s1 & 0xff] ^ rk[12]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ + Td3[s2 & 0xff] ^ rk[13]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ + Td3[s3 & 0xff] ^ rk[14]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ + Td3[s0 & 0xff] ^ rk[15]; + /* round 4: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ + Td3[t1 & 0xff] ^ rk[16]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ + Td3[t2 & 0xff] ^ rk[17]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ + Td3[t3 & 0xff] ^ rk[18]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ + Td3[t0 & 0xff] ^ rk[19]; + /* round 5: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ + Td3[s1 & 0xff] ^ rk[20]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ + Td3[s2 & 0xff] ^ rk[21]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ + Td3[s3 & 0xff] ^ rk[22]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ + Td3[s0 & 0xff] ^ rk[23]; + /* round 6: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ + Td3[t1 & 0xff] ^ rk[24]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ + Td3[t2 & 0xff] ^ rk[25]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ + Td3[t3 & 0xff] ^ rk[26]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ + Td3[t0 & 0xff] ^ rk[27]; + /* round 7: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ + Td3[s1 & 0xff] ^ rk[28]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ + Td3[s2 & 0xff] ^ rk[29]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ + Td3[s3 & 0xff] ^ rk[30]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ + Td3[s0 & 0xff] ^ rk[31]; + /* round 8: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ + Td3[t1 & 0xff] ^ rk[32]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ + Td3[t2 & 0xff] ^ rk[33]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ + Td3[t3 & 0xff] ^ rk[34]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ + Td3[t0 & 0xff] ^ rk[35]; + /* round 9: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ + Td3[s1 & 0xff] ^ rk[36]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ + Td3[s2 & 0xff] ^ rk[37]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ + Td3[s3 & 0xff] ^ rk[38]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ + Td3[s0 & 0xff] ^ rk[39]; + if (key->rounds > 10) { + /* round 10: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ + Td3[t1 & 0xff] ^ rk[40]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ + Td3[t2 & 0xff] ^ rk[41]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ + Td3[t3 & 0xff] ^ rk[42]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ + Td3[t0 & 0xff] ^ rk[43]; + /* round 11: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ + Td3[s1 & 0xff] ^ rk[44]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ + Td3[s2 & 0xff] ^ rk[45]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ + Td3[s3 & 0xff] ^ rk[46]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ + Td3[s0 & 0xff] ^ rk[47]; + if (key->rounds > 12) { + /* round 12: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ + Td3[t1 & 0xff] ^ rk[48]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ + Td3[t2 & 0xff] ^ rk[49]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ + Td3[t3 & 0xff] ^ rk[50]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ + Td3[t0 & 0xff] ^ rk[51]; + /* round 13: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ + Td3[s1 & 0xff] ^ rk[52]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ + Td3[s2 & 0xff] ^ rk[53]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ + Td3[s3 & 0xff] ^ rk[54]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ + Td3[s0 & 0xff] ^ rk[55]; + } + } + rk += key->rounds << 2; +#else /* !FULL_UNROLL */ + /* + * Nr - 1 full rounds: + */ + r = key->rounds >> 1; + for (;;) { + t0 = Td0[(s0 >> 24)] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ + Td3[(s1) & 0xff] ^ rk[4]; + t1 = Td0[(s1 >> 24)] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ + Td3[(s2) & 0xff] ^ rk[5]; + t2 = Td0[(s2 >> 24)] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ + Td3[(s3) & 0xff] ^ rk[6]; + t3 = Td0[(s3 >> 24)] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ + Td3[(s0) & 0xff] ^ rk[7]; + + rk += 8; + if (--r == 0) { + break; + } + + s0 = Td0[(t0 >> 24)] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ + Td3[(t1) & 0xff] ^ rk[0]; + s1 = Td0[(t1 >> 24)] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ + Td3[(t2) & 0xff] ^ rk[1]; + s2 = Td0[(t2 >> 24)] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ + Td3[(t3) & 0xff] ^ rk[2]; + s3 = Td0[(t3 >> 24)] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ + Td3[(t0) & 0xff] ^ rk[3]; + } +#endif /* ?FULL_UNROLL */ + /* apply last round and + * map cipher state to byte array block: */ + s0 = (Td4[(t0 >> 24)] << 24) ^ (Td4[(t3 >> 16) & 0xff] << 16) ^ + (Td4[(t2 >> 8) & 0xff] << 8) ^ (Td4[(t1) & 0xff]) ^ rk[0]; + PUTU32(out, s0); + s1 = (Td4[(t1 >> 24)] << 24) ^ (Td4[(t0 >> 16) & 0xff] << 16) ^ + (Td4[(t3 >> 8) & 0xff] << 8) ^ (Td4[(t2) & 0xff]) ^ rk[1]; + PUTU32(out + 4, s1); + s2 = (Td4[(t2 >> 24)] << 24) ^ (Td4[(t1 >> 16) & 0xff] << 16) ^ + (Td4[(t0 >> 8) & 0xff] << 8) ^ (Td4[(t3) & 0xff]) ^ rk[2]; + PUTU32(out + 8, s2); + s3 = (Td4[(t3 >> 24)] << 24) ^ (Td4[(t2 >> 16) & 0xff] << 16) ^ + (Td4[(t1 >> 8) & 0xff] << 8) ^ (Td4[(t0) & 0xff]) ^ rk[3]; + PUTU32(out + 12, s3); +} + +#endif diff --git a/crypto/aes/aes.h b/crypto/aes/aes.h new file mode 100644 index 00000000..81569645 --- /dev/null +++ b/crypto/aes/aes.h @@ -0,0 +1,138 @@ +/* ==================================================================== + * Copyright (c) 2002-2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== */ + +#ifndef OPENSSL_HEADER_AES_H +#define OPENSSL_HEADER_AES_H + +#include <openssl/base.h> + +#if defined(__cplusplus) +extern "C" { +#endif + + +/* Raw AES functions. */ + + +#define AES_ENCRYPT 1 +#define AES_DECRYPT 0 + +/* AES_MAXNR is the maximum number of AES rounds. */ +#define AES_MAXNR 14 + +#define AES_BLOCK_SIZE 16 + +/* aes_key_st should be an opaque type, but EVP requires that the size be + * known. */ +struct aes_key_st { + uint32_t rd_key[4 * (AES_MAXNR + 1)]; + unsigned rounds; +}; +typedef struct aes_key_st AES_KEY; + +/* AES_set_encrypt_key configures |aeskey| to encrypt with the |bits|-bit key, + * |key|. + * + * WARNING: unlike other OpenSSL functions, this returns zero on success and a + * negative number on error. */ +int AES_set_encrypt_key(const uint8_t *key, unsigned bits, AES_KEY *aeskey); + +/* AES_set_decrypt_key configures |aeskey| to decrypt with the |bits|-bit key, + * |key|. + * + * WARNING: unlike other OpenSSL functions, this returns zero on success and a + * negative number on error. */ +int AES_set_decrypt_key(const uint8_t *key, unsigned bits, AES_KEY *aeskey); + +/* AES_encrypt encrypts a single block from |in| to |out| with |key|. The |in| + * and |out| pointers may overlap. */ +void AES_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key); + +/* AES_decrypt decrypts a single block from |in| to |out| with |key|. The |in| + * and |out| pointers may overlap. */ +void AES_decrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key); + + +/* Block cipher modes. */ + +/* AES_ctr128_encrypt encrypts (or decrypts, it's the same in CTR mode) |len| + * bytes from |in| to |out|. The |num| parameter must be set to zero on the + * first call and |ivec| will be incremented. */ +void AES_ctr128_encrypt(const uint8_t *in, uint8_t *out, size_t len, + const AES_KEY *key, uint8_t ivec[AES_BLOCK_SIZE], + uint8_t ecount_buf[AES_BLOCK_SIZE], unsigned int *num); + +/* AES_ecb_encrypt encrypts (or decrypts, if |enc| == |AES_DECRYPT|) a single, + * 16 byte block from |in| to |out|. */ +void AES_ecb_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key, + const int enc); + +/* AES_cbc_encrypt encrypts (or decrypts, if |enc| == |AES_DECRYPT|) |len| + * bytes from |in| to |out|. The length must be a multiple of the block size. */ +void AES_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t len, + const AES_KEY *key, uint8_t *ivec, const int enc); + +/* AES_ofb128_encrypt encrypts (or decrypts, it's the same in CTR mode) |len| + * bytes from |in| to |out|. The |num| parameter must be set to zero on the + * first call. */ +void AES_ofb128_encrypt(const uint8_t *in, uint8_t *out, size_t len, + const AES_KEY *key, uint8_t *ivec, int *num); + +/* AES_cfb128_encrypt encrypts (or decrypts, if |enc| == |AES_DECRYPT|) |len| + * bytes from |in| to |out|. The |num| parameter must be set to zero on the + * first call. */ +void AES_cfb128_encrypt(const uint8_t *in, uint8_t *out, size_t len, + const AES_KEY *key, uint8_t *ivec, int *num, + int enc); + + +#if defined(__cplusplus) +} /* extern C */ +#endif + +#endif /* OPENSSL_HEADER_AES_H */ diff --git a/crypto/aes/asm/aes-586.pl b/crypto/aes/asm/aes-586.pl new file mode 100755 index 00000000..1c1e23e5 --- /dev/null +++ b/crypto/aes/asm/aes-586.pl @@ -0,0 +1,2987 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# Version 4.3. +# +# You might fail to appreciate this module performance from the first +# try. If compared to "vanilla" linux-ia32-icc target, i.e. considered +# to be *the* best Intel C compiler without -KPIC, performance appears +# to be virtually identical... But try to re-configure with shared +# library support... Aha! Intel compiler "suddenly" lags behind by 30% +# [on P4, more on others]:-) And if compared to position-independent +# code generated by GNU C, this code performs *more* than *twice* as +# fast! Yes, all this buzz about PIC means that unlike other hand- +# coded implementations, this one was explicitly designed to be safe +# to use even in shared library context... This also means that this +# code isn't necessarily absolutely fastest "ever," because in order +# to achieve position independence an extra register has to be +# off-loaded to stack, which affects the benchmark result. +# +# Special note about instruction choice. Do you recall RC4_INT code +# performing poorly on P4? It might be the time to figure out why. +# RC4_INT code implies effective address calculations in base+offset*4 +# form. Trouble is that it seems that offset scaling turned to be +# critical path... At least eliminating scaling resulted in 2.8x RC4 +# performance improvement [as you might recall]. As AES code is hungry +# for scaling too, I [try to] avoid the latter by favoring off-by-2 +# shifts and masking the result with 0xFF<<2 instead of "boring" 0xFF. +# +# As was shown by Dean Gaudet <dean@arctic.org>, the above note turned +# void. Performance improvement with off-by-2 shifts was observed on +# intermediate implementation, which was spilling yet another register +# to stack... Final offset*4 code below runs just a tad faster on P4, +# but exhibits up to 10% improvement on other cores. +# +# Second version is "monolithic" replacement for aes_core.c, which in +# addition to AES_[de|en]crypt implements AES_set_[de|en]cryption_key. +# This made it possible to implement little-endian variant of the +# algorithm without modifying the base C code. Motivating factor for +# the undertaken effort was that it appeared that in tight IA-32 +# register window little-endian flavor could achieve slightly higher +# Instruction Level Parallelism, and it indeed resulted in up to 15% +# better performance on most recent µ-archs... +# +# Third version adds AES_cbc_encrypt implementation, which resulted in +# up to 40% performance imrovement of CBC benchmark results. 40% was +# observed on P4 core, where "overall" imrovement coefficient, i.e. if +# compared to PIC generated by GCC and in CBC mode, was observed to be +# as large as 4x:-) CBC performance is virtually identical to ECB now +# and on some platforms even better, e.g. 17.6 "small" cycles/byte on +# Opteron, because certain function prologues and epilogues are +# effectively taken out of the loop... +# +# Version 3.2 implements compressed tables and prefetch of these tables +# in CBC[!] mode. Former means that 3/4 of table references are now +# misaligned, which unfortunately has negative impact on elder IA-32 +# implementations, Pentium suffered 30% penalty, PIII - 10%. +# +# Version 3.3 avoids L1 cache aliasing between stack frame and +# S-boxes, and 3.4 - L1 cache aliasing even between key schedule. The +# latter is achieved by copying the key schedule to controlled place in +# stack. This unfortunately has rather strong impact on small block CBC +# performance, ~2x deterioration on 16-byte block if compared to 3.3. +# +# Version 3.5 checks if there is L1 cache aliasing between user-supplied +# key schedule and S-boxes and abstains from copying the former if +# there is no. This allows end-user to consciously retain small block +# performance by aligning key schedule in specific manner. +# +# Version 3.6 compresses Td4 to 256 bytes and prefetches it in ECB. +# +# Current ECB performance numbers for 128-bit key in CPU cycles per +# processed byte [measure commonly used by AES benchmarkers] are: +# +# small footprint fully unrolled +# P4 24 22 +# AMD K8 20 19 +# PIII 25 23 +# Pentium 81 78 +# +# Version 3.7 reimplements outer rounds as "compact." Meaning that +# first and last rounds reference compact 256 bytes S-box. This means +# that first round consumes a lot more CPU cycles and that encrypt +# and decrypt performance becomes asymmetric. Encrypt performance +# drops by 10-12%, while decrypt - by 20-25%:-( 256 bytes S-box is +# aggressively pre-fetched. +# +# Version 4.0 effectively rolls back to 3.6 and instead implements +# additional set of functions, _[x86|sse]_AES_[en|de]crypt_compact, +# which use exclusively 256 byte S-box. These functions are to be +# called in modes not concealing plain text, such as ECB, or when +# we're asked to process smaller amount of data [or unconditionally +# on hyper-threading CPU]. Currently it's called unconditionally from +# AES_[en|de]crypt, which affects all modes, but CBC. CBC routine +# still needs to be modified to switch between slower and faster +# mode when appropriate... But in either case benchmark landscape +# changes dramatically and below numbers are CPU cycles per processed +# byte for 128-bit key. +# +# ECB encrypt ECB decrypt CBC large chunk +# P4 52[54] 83[95] 23 +# AMD K8 46[41] 66[70] 18 +# PIII 41[50] 60[77] 24 +# Core 2 31[36] 45[64] 18.5 +# Atom 76[100] 96[138] 60 +# Pentium 115 150 77 +# +# Version 4.1 switches to compact S-box even in key schedule setup. +# +# Version 4.2 prefetches compact S-box in every SSE round or in other +# words every cache-line is *guaranteed* to be accessed within ~50 +# cycles window. Why just SSE? Because it's needed on hyper-threading +# CPU! Which is also why it's prefetched with 64 byte stride. Best +# part is that it has no negative effect on performance:-) +# +# Version 4.3 implements switch between compact and non-compact block +# functions in AES_cbc_encrypt depending on how much data was asked +# to be processed in one stroke. +# +###################################################################### +# Timing attacks are classified in two classes: synchronous when +# attacker consciously initiates cryptographic operation and collects +# timing data of various character afterwards, and asynchronous when +# malicious code is executed on same CPU simultaneously with AES, +# instruments itself and performs statistical analysis of this data. +# +# As far as synchronous attacks go the root to the AES timing +# vulnerability is twofold. Firstly, of 256 S-box elements at most 160 +# are referred to in single 128-bit block operation. Well, in C +# implementation with 4 distinct tables it's actually as little as 40 +# references per 256 elements table, but anyway... Secondly, even +# though S-box elements are clustered into smaller amount of cache- +# lines, smaller than 160 and even 40, it turned out that for certain +# plain-text pattern[s] or simply put chosen plain-text and given key +# few cache-lines remain unaccessed during block operation. Now, if +# attacker can figure out this access pattern, he can deduct the key +# [or at least part of it]. The natural way to mitigate this kind of +# attacks is to minimize the amount of cache-lines in S-box and/or +# prefetch them to ensure that every one is accessed for more uniform +# timing. But note that *if* plain-text was concealed in such way that +# input to block function is distributed *uniformly*, then attack +# wouldn't apply. Now note that some encryption modes, most notably +# CBC, do mask the plain-text in this exact way [secure cipher output +# is distributed uniformly]. Yes, one still might find input that +# would reveal the information about given key, but if amount of +# candidate inputs to be tried is larger than amount of possible key +# combinations then attack becomes infeasible. This is why revised +# AES_cbc_encrypt "dares" to switch to larger S-box when larger chunk +# of data is to be processed in one stroke. The current size limit of +# 512 bytes is chosen to provide same [diminishigly low] probability +# for cache-line to remain untouched in large chunk operation with +# large S-box as for single block operation with compact S-box and +# surely needs more careful consideration... +# +# As for asynchronous attacks. There are two flavours: attacker code +# being interleaved with AES on hyper-threading CPU at *instruction* +# level, and two processes time sharing single core. As for latter. +# Two vectors. 1. Given that attacker process has higher priority, +# yield execution to process performing AES just before timer fires +# off the scheduler, immediately regain control of CPU and analyze the +# cache state. For this attack to be efficient attacker would have to +# effectively slow down the operation by several *orders* of magnitute, +# by ratio of time slice to duration of handful of AES rounds, which +# unlikely to remain unnoticed. Not to mention that this also means +# that he would spend correspondigly more time to collect enough +# statistical data to mount the attack. It's probably appropriate to +# say that if adeversary reckons that this attack is beneficial and +# risks to be noticed, you probably have larger problems having him +# mere opportunity. In other words suggested code design expects you +# to preclude/mitigate this attack by overall system security design. +# 2. Attacker manages to make his code interrupt driven. In order for +# this kind of attack to be feasible, interrupt rate has to be high +# enough, again comparable to duration of handful of AES rounds. But +# is there interrupt source of such rate? Hardly, not even 1Gbps NIC +# generates interrupts at such raging rate... +# +# And now back to the former, hyper-threading CPU or more specifically +# Intel P4. Recall that asynchronous attack implies that malicious +# code instruments itself. And naturally instrumentation granularity +# has be noticeably lower than duration of codepath accessing S-box. +# Given that all cache-lines are accessed during that time that is. +# Current implementation accesses *all* cache-lines within ~50 cycles +# window, which is actually *less* than RDTSC latency on Intel P4! + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +push(@INC,"${dir}","${dir}../../perlasm"); +require "x86asm.pl"; + +&asm_init($ARGV[0],"aes-586.pl",$x86only = $ARGV[$#ARGV] eq "386"); +&static_label("AES_Te"); +&static_label("AES_Td"); + +$s0="eax"; +$s1="ebx"; +$s2="ecx"; +$s3="edx"; +$key="edi"; +$acc="esi"; +$tbl="ebp"; + +# stack frame layout in _[x86|sse]_AES_* routines, frame is allocated +# by caller +$__ra=&DWP(0,"esp"); # return address +$__s0=&DWP(4,"esp"); # s0 backing store +$__s1=&DWP(8,"esp"); # s1 backing store +$__s2=&DWP(12,"esp"); # s2 backing store +$__s3=&DWP(16,"esp"); # s3 backing store +$__key=&DWP(20,"esp"); # pointer to key schedule +$__end=&DWP(24,"esp"); # pointer to end of key schedule +$__tbl=&DWP(28,"esp"); # %ebp backing store + +# stack frame layout in AES_[en|crypt] routines, which differs from +# above by 4 and overlaps by %ebp backing store +$_tbl=&DWP(24,"esp"); +$_esp=&DWP(28,"esp"); + +sub _data_word() { my $i; while(defined($i=shift)) { &data_word($i,$i); } } + +$speed_limit=512; # chunks smaller than $speed_limit are + # processed with compact routine in CBC mode +$small_footprint=1; # $small_footprint=1 code is ~5% slower [on + # recent µ-archs], but ~5 times smaller! + # I favor compact code to minimize cache + # contention and in hope to "collect" 5% back + # in real-life applications... + +$vertical_spin=0; # shift "verticaly" defaults to 0, because of + # its proof-of-concept status... +# Note that there is no decvert(), as well as last encryption round is +# performed with "horizontal" shifts. This is because this "vertical" +# implementation [one which groups shifts on a given $s[i] to form a +# "column," unlike "horizontal" one, which groups shifts on different +# $s[i] to form a "row"] is work in progress. It was observed to run +# few percents faster on Intel cores, but not AMD. On AMD K8 core it's +# whole 12% slower:-( So we face a trade-off... Shall it be resolved +# some day? Till then the code is considered experimental and by +# default remains dormant... + +sub encvert() +{ my ($te,@s) = @_; + my ($v0,$v1) = ($acc,$key); + + &mov ($v0,$s[3]); # copy s3 + &mov (&DWP(4,"esp"),$s[2]); # save s2 + &mov ($v1,$s[0]); # copy s0 + &mov (&DWP(8,"esp"),$s[1]); # save s1 + + &movz ($s[2],&HB($s[0])); + &and ($s[0],0xFF); + &mov ($s[0],&DWP(0,$te,$s[0],8)); # s0>>0 + &shr ($v1,16); + &mov ($s[3],&DWP(3,$te,$s[2],8)); # s0>>8 + &movz ($s[1],&HB($v1)); + &and ($v1,0xFF); + &mov ($s[2],&DWP(2,$te,$v1,8)); # s0>>16 + &mov ($v1,$v0); + &mov ($s[1],&DWP(1,$te,$s[1],8)); # s0>>24 + + &and ($v0,0xFF); + &xor ($s[3],&DWP(0,$te,$v0,8)); # s3>>0 + &movz ($v0,&HB($v1)); + &shr ($v1,16); + &xor ($s[2],&DWP(3,$te,$v0,8)); # s3>>8 + &movz ($v0,&HB($v1)); + &and ($v1,0xFF); + &xor ($s[1],&DWP(2,$te,$v1,8)); # s3>>16 + &mov ($v1,&DWP(4,"esp")); # restore s2 + &xor ($s[0],&DWP(1,$te,$v0,8)); # s3>>24 + + &mov ($v0,$v1); + &and ($v1,0xFF); + &xor ($s[2],&DWP(0,$te,$v1,8)); # s2>>0 + &movz ($v1,&HB($v0)); + &shr ($v0,16); + &xor ($s[1],&DWP(3,$te,$v1,8)); # s2>>8 + &movz ($v1,&HB($v0)); + &and ($v0,0xFF); + &xor ($s[0],&DWP(2,$te,$v0,8)); # s2>>16 + &mov ($v0,&DWP(8,"esp")); # restore s1 + &xor ($s[3],&DWP(1,$te,$v1,8)); # s2>>24 + + &mov ($v1,$v0); + &and ($v0,0xFF); + &xor ($s[1],&DWP(0,$te,$v0,8)); # s1>>0 + &movz ($v0,&HB($v1)); + &shr ($v1,16); + &xor ($s[0],&DWP(3,$te,$v0,8)); # s1>>8 + &movz ($v0,&HB($v1)); + &and ($v1,0xFF); + &xor ($s[3],&DWP(2,$te,$v1,8)); # s1>>16 + &mov ($key,$__key); # reincarnate v1 as key + &xor ($s[2],&DWP(1,$te,$v0,8)); # s1>>24 +} + +# Another experimental routine, which features "horizontal spin," but +# eliminates one reference to stack. Strangely enough runs slower... +sub enchoriz() +{ my ($v0,$v1) = ($key,$acc); + + &movz ($v0,&LB($s0)); # 3, 2, 1, 0* + &rotr ($s2,8); # 8,11,10, 9 + &mov ($v1,&DWP(0,$te,$v0,8)); # 0 + &movz ($v0,&HB($s1)); # 7, 6, 5*, 4 + &rotr ($s3,16); # 13,12,15,14 + &xor ($v1,&DWP(3,$te,$v0,8)); # 5 + &movz ($v0,&HB($s2)); # 8,11,10*, 9 + &rotr ($s0,16); # 1, 0, 3, 2 + &xor ($v1,&DWP(2,$te,$v0,8)); # 10 + &movz ($v0,&HB($s3)); # 13,12,15*,14 + &xor ($v1,&DWP(1,$te,$v0,8)); # 15, t[0] collected + &mov ($__s0,$v1); # t[0] saved + + &movz ($v0,&LB($s1)); # 7, 6, 5, 4* + &shr ($s1,16); # -, -, 7, 6 + &mov ($v1,&DWP(0,$te,$v0,8)); # 4 + &movz ($v0,&LB($s3)); # 13,12,15,14* + &xor ($v1,&DWP(2,$te,$v0,8)); # 14 + &movz ($v0,&HB($s0)); # 1, 0, 3*, 2 + &and ($s3,0xffff0000); # 13,12, -, - + &xor ($v1,&DWP(1,$te,$v0,8)); # 3 + &movz ($v0,&LB($s2)); # 8,11,10, 9* + &or ($s3,$s1); # 13,12, 7, 6 + &xor ($v1,&DWP(3,$te,$v0,8)); # 9, t[1] collected + &mov ($s1,$v1); # s[1]=t[1] + + &movz ($v0,&LB($s0)); # 1, 0, 3, 2* + &shr ($s2,16); # -, -, 8,11 + &mov ($v1,&DWP(2,$te,$v0,8)); # 2 + &movz ($v0,&HB($s3)); # 13,12, 7*, 6 + &xor ($v1,&DWP(1,$te,$v0,8)); # 7 + &movz ($v0,&HB($s2)); # -, -, 8*,11 + &xor ($v1,&DWP(0,$te,$v0,8)); # 8 + &mov ($v0,$s3); + &shr ($v0,24); # 13 + &xor ($v1,&DWP(3,$te,$v0,8)); # 13, t[2] collected + + &movz ($v0,&LB($s2)); # -, -, 8,11* + &shr ($s0,24); # 1* + &mov ($s2,&DWP(1,$te,$v0,8)); # 11 + &xor ($s2,&DWP(3,$te,$s0,8)); # 1 + &mov ($s0,$__s0); # s[0]=t[0] + &movz ($v0,&LB($s3)); # 13,12, 7, 6* + &shr ($s3,16); # , ,13,12 + &xor ($s2,&DWP(2,$te,$v0,8)); # 6 + &mov ($key,$__key); # reincarnate v0 as key + &and ($s3,0xff); # , ,13,12* + &mov ($s3,&DWP(0,$te,$s3,8)); # 12 + &xor ($s3,$s2); # s[2]=t[3] collected + &mov ($s2,$v1); # s[2]=t[2] +} + +# More experimental code... SSE one... Even though this one eliminates +# *all* references to stack, it's not faster... +sub sse_encbody() +{ + &movz ($acc,&LB("eax")); # 0 + &mov ("ecx",&DWP(0,$tbl,$acc,8)); # 0 + &pshufw ("mm2","mm0",0x0d); # 7, 6, 3, 2 + &movz ("edx",&HB("eax")); # 1 + &mov ("edx",&DWP(3,$tbl,"edx",8)); # 1 + &shr ("eax",16); # 5, 4 + + &movz ($acc,&LB("ebx")); # 10 + &xor ("ecx",&DWP(2,$tbl,$acc,8)); # 10 + &pshufw ("mm6","mm4",0x08); # 13,12, 9, 8 + &movz ($acc,&HB("ebx")); # 11 + &xor ("edx",&DWP(1,$tbl,$acc,8)); # 11 + &shr ("ebx",16); # 15,14 + + &movz ($acc,&HB("eax")); # 5 + &xor ("ecx",&DWP(3,$tbl,$acc,8)); # 5 + &movq ("mm3",QWP(16,$key)); + &movz ($acc,&HB("ebx")); # 15 + &xor ("ecx",&DWP(1,$tbl,$acc,8)); # 15 + &movd ("mm0","ecx"); # t[0] collected + + &movz ($acc,&LB("eax")); # 4 + &mov ("ecx",&DWP(0,$tbl,$acc,8)); # 4 + &movd ("eax","mm2"); # 7, 6, 3, 2 + &movz ($acc,&LB("ebx")); # 14 + &xor ("ecx",&DWP(2,$tbl,$acc,8)); # 14 + &movd ("ebx","mm6"); # 13,12, 9, 8 + + &movz ($acc,&HB("eax")); # 3 + &xor ("ecx",&DWP(1,$tbl,$acc,8)); # 3 + &movz ($acc,&HB("ebx")); # 9 + &xor ("ecx",&DWP(3,$tbl,$acc,8)); # 9 + &movd ("mm1","ecx"); # t[1] collected + + &movz ($acc,&LB("eax")); # 2 + &mov ("ecx",&DWP(2,$tbl,$acc,8)); # 2 + &shr ("eax",16); # 7, 6 + &punpckldq ("mm0","mm1"); # t[0,1] collected + &movz ($acc,&LB("ebx")); # 8 + &xor ("ecx",&DWP(0,$tbl,$acc,8)); # 8 + &shr ("ebx",16); # 13,12 + + &movz ($acc,&HB("eax")); # 7 + &xor ("ecx",&DWP(1,$tbl,$acc,8)); # 7 + &pxor ("mm0","mm3"); + &movz ("eax",&LB("eax")); # 6 + &xor ("edx",&DWP(2,$tbl,"eax",8)); # 6 + &pshufw ("mm1","mm0",0x08); # 5, 4, 1, 0 + &movz ($acc,&HB("ebx")); # 13 + &xor ("ecx",&DWP(3,$tbl,$acc,8)); # 13 + &xor ("ecx",&DWP(24,$key)); # t[2] + &movd ("mm4","ecx"); # t[2] collected + &movz ("ebx",&LB("ebx")); # 12 + &xor ("edx",&DWP(0,$tbl,"ebx",8)); # 12 + &shr ("ecx",16); + &movd ("eax","mm1"); # 5, 4, 1, 0 + &mov ("ebx",&DWP(28,$key)); # t[3] + &xor ("ebx","edx"); + &movd ("mm5","ebx"); # t[3] collected + &and ("ebx",0xffff0000); + &or ("ebx","ecx"); + + &punpckldq ("mm4","mm5"); # t[2,3] collected +} + +###################################################################### +# "Compact" block function +###################################################################### + +sub enccompact() +{ my $Fn = \&mov; + while ($#_>5) { pop(@_); $Fn=sub{}; } + my ($i,$te,@s)=@_; + my $tmp = $key; + my $out = $i==3?$s[0]:$acc; + + # $Fn is used in first compact round and its purpose is to + # void restoration of some values from stack, so that after + # 4xenccompact with extra argument $key value is left there... + if ($i==3) { &$Fn ($key,$__key); }##%edx + else { &mov ($out,$s[0]); } + &and ($out,0xFF); + if ($i==1) { &shr ($s[0],16); }#%ebx[1] + if ($i==2) { &shr ($s[0],24); }#%ecx[2] + &movz ($out,&BP(-128,$te,$out,1)); + + if ($i==3) { $tmp=$s[1]; }##%eax + &movz ($tmp,&HB($s[1])); + &movz ($tmp,&BP(-128,$te,$tmp,1)); + &shl ($tmp,8); + &xor ($out,$tmp); + + if ($i==3) { $tmp=$s[2]; &mov ($s[1],$__s0); }##%ebx + else { &mov ($tmp,$s[2]); + &shr ($tmp,16); } + if ($i==2) { &and ($s[1],0xFF); }#%edx[2] + &and ($tmp,0xFF); + &movz ($tmp,&BP(-128,$te,$tmp,1)); + &shl ($tmp,16); + &xor ($out,$tmp); + + if ($i==3) { $tmp=$s[3]; &mov ($s[2],$__s1); }##%ecx + elsif($i==2){ &movz ($tmp,&HB($s[3])); }#%ebx[2] + else { &mov ($tmp,$s[3]); + &shr ($tmp,24); } + &movz ($tmp,&BP(-128,$te,$tmp,1)); + &shl ($tmp,24); + &xor ($out,$tmp); + if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } + if ($i==3) { &mov ($s[3],$acc); } + &comment(); +} + +sub enctransform() +{ my @s = ($s0,$s1,$s2,$s3); + my $i = shift; + my $tmp = $tbl; + my $r2 = $key ; + + &and ($tmp,$s[$i]); + &lea ($r2,&DWP(0,$s[$i],$s[$i])); + &mov ($acc,$tmp); + &shr ($tmp,7); + &and ($r2,0xfefefefe); + &sub ($acc,$tmp); + &mov ($tmp,$s[$i]); + &and ($acc,0x1b1b1b1b); + &rotr ($tmp,16); + &xor ($acc,$r2); # r2 + &mov ($r2,$s[$i]); + + &xor ($s[$i],$acc); # r0 ^ r2 + &rotr ($r2,16+8); + &xor ($acc,$tmp); + &rotl ($s[$i],24); + &xor ($acc,$r2); + &mov ($tmp,0x80808080) if ($i!=1); + &xor ($s[$i],$acc); # ROTATE(r2^r0,24) ^ r2 +} + +&function_begin_B("_x86_AES_encrypt_compact"); + # note that caller is expected to allocate stack frame for me! + &mov ($__key,$key); # save key + + &xor ($s0,&DWP(0,$key)); # xor with key + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &mov ($acc,&DWP(240,$key)); # load key->rounds + &lea ($acc,&DWP(-2,$acc,$acc)); + &lea ($acc,&DWP(0,$key,$acc,8)); + &mov ($__end,$acc); # end of key schedule + + # prefetch Te4 + &mov ($key,&DWP(0-128,$tbl)); + &mov ($acc,&DWP(32-128,$tbl)); + &mov ($key,&DWP(64-128,$tbl)); + &mov ($acc,&DWP(96-128,$tbl)); + &mov ($key,&DWP(128-128,$tbl)); + &mov ($acc,&DWP(160-128,$tbl)); + &mov ($key,&DWP(192-128,$tbl)); + &mov ($acc,&DWP(224-128,$tbl)); + + &set_label("loop",16); + + &enccompact(0,$tbl,$s0,$s1,$s2,$s3,1); + &enccompact(1,$tbl,$s1,$s2,$s3,$s0,1); + &enccompact(2,$tbl,$s2,$s3,$s0,$s1,1); + &enccompact(3,$tbl,$s3,$s0,$s1,$s2,1); + &mov ($tbl,0x80808080); + &enctransform(2); + &enctransform(3); + &enctransform(0); + &enctransform(1); + &mov ($key,$__key); + &mov ($tbl,$__tbl); + &add ($key,16); # advance rd_key + &xor ($s0,&DWP(0,$key)); + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &cmp ($key,$__end); + &mov ($__key,$key); + &jb (&label("loop")); + + &enccompact(0,$tbl,$s0,$s1,$s2,$s3); + &enccompact(1,$tbl,$s1,$s2,$s3,$s0); + &enccompact(2,$tbl,$s2,$s3,$s0,$s1); + &enccompact(3,$tbl,$s3,$s0,$s1,$s2); + + &xor ($s0,&DWP(16,$key)); + &xor ($s1,&DWP(20,$key)); + &xor ($s2,&DWP(24,$key)); + &xor ($s3,&DWP(28,$key)); + + &ret (); +&function_end_B("_x86_AES_encrypt_compact"); + +###################################################################### +# "Compact" SSE block function. +###################################################################### +# +# Performance is not actually extraordinary in comparison to pure +# x86 code. In particular encrypt performance is virtually the same. +# Decrypt performance on the other hand is 15-20% better on newer +# µ-archs [but we're thankful for *any* improvement here], and ~50% +# better on PIII:-) And additionally on the pros side this code +# eliminates redundant references to stack and thus relieves/ +# minimizes the pressure on the memory bus. +# +# MMX register layout lsb +# +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ +# | mm4 | mm0 | +# +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ +# | s3 | s2 | s1 | s0 | +# +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ +# |15|14|13|12|11|10| 9| 8| 7| 6| 5| 4| 3| 2| 1| 0| +# +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ +# +# Indexes translate as s[N/4]>>(8*(N%4)), e.g. 5 means s1>>8. +# In this terms encryption and decryption "compact" permutation +# matrices can be depicted as following: +# +# encryption lsb # decryption lsb +# +----++----+----+----+----+ # +----++----+----+----+----+ +# | t0 || 15 | 10 | 5 | 0 | # | t0 || 7 | 10 | 13 | 0 | +# +----++----+----+----+----+ # +----++----+----+----+----+ +# | t1 || 3 | 14 | 9 | 4 | # | t1 || 11 | 14 | 1 | 4 | +# +----++----+----+----+----+ # +----++----+----+----+----+ +# | t2 || 7 | 2 | 13 | 8 | # | t2 || 15 | 2 | 5 | 8 | +# +----++----+----+----+----+ # +----++----+----+----+----+ +# | t3 || 11 | 6 | 1 | 12 | # | t3 || 3 | 6 | 9 | 12 | +# +----++----+----+----+----+ # +----++----+----+----+----+ +# +###################################################################### +# Why not xmm registers? Short answer. It was actually tested and +# was not any faster, but *contrary*, most notably on Intel CPUs. +# Longer answer. Main advantage of using mm registers is that movd +# latency is lower, especially on Intel P4. While arithmetic +# instructions are twice as many, they can be scheduled every cycle +# and not every second one when they are operating on xmm register, +# so that "arithmetic throughput" remains virtually the same. And +# finally the code can be executed even on elder SSE-only CPUs:-) + +sub sse_enccompact() +{ + &pshufw ("mm1","mm0",0x08); # 5, 4, 1, 0 + &pshufw ("mm5","mm4",0x0d); # 15,14,11,10 + &movd ("eax","mm1"); # 5, 4, 1, 0 + &movd ("ebx","mm5"); # 15,14,11,10 + &mov ($__key,$key); + + &movz ($acc,&LB("eax")); # 0 + &movz ("edx",&HB("eax")); # 1 + &pshufw ("mm2","mm0",0x0d); # 7, 6, 3, 2 + &movz ("ecx",&BP(-128,$tbl,$acc,1)); # 0 + &movz ($key,&LB("ebx")); # 10 + &movz ("edx",&BP(-128,$tbl,"edx",1)); # 1 + &shr ("eax",16); # 5, 4 + &shl ("edx",8); # 1 + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 10 + &movz ($key,&HB("ebx")); # 11 + &shl ($acc,16); # 10 + &pshufw ("mm6","mm4",0x08); # 13,12, 9, 8 + &or ("ecx",$acc); # 10 + &movz ($acc,&BP(-128,$tbl,$key,1)); # 11 + &movz ($key,&HB("eax")); # 5 + &shl ($acc,24); # 11 + &shr ("ebx",16); # 15,14 + &or ("edx",$acc); # 11 + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 5 + &movz ($key,&HB("ebx")); # 15 + &shl ($acc,8); # 5 + &or ("ecx",$acc); # 5 + &movz ($acc,&BP(-128,$tbl,$key,1)); # 15 + &movz ($key,&LB("eax")); # 4 + &shl ($acc,24); # 15 + &or ("ecx",$acc); # 15 + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 4 + &movz ($key,&LB("ebx")); # 14 + &movd ("eax","mm2"); # 7, 6, 3, 2 + &movd ("mm0","ecx"); # t[0] collected + &movz ("ecx",&BP(-128,$tbl,$key,1)); # 14 + &movz ($key,&HB("eax")); # 3 + &shl ("ecx",16); # 14 + &movd ("ebx","mm6"); # 13,12, 9, 8 + &or ("ecx",$acc); # 14 + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 3 + &movz ($key,&HB("ebx")); # 9 + &shl ($acc,24); # 3 + &or ("ecx",$acc); # 3 + &movz ($acc,&BP(-128,$tbl,$key,1)); # 9 + &movz ($key,&LB("ebx")); # 8 + &shl ($acc,8); # 9 + &shr ("ebx",16); # 13,12 + &or ("ecx",$acc); # 9 + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 8 + &movz ($key,&LB("eax")); # 2 + &shr ("eax",16); # 7, 6 + &movd ("mm1","ecx"); # t[1] collected + &movz ("ecx",&BP(-128,$tbl,$key,1)); # 2 + &movz ($key,&HB("eax")); # 7 + &shl ("ecx",16); # 2 + &and ("eax",0xff); # 6 + &or ("ecx",$acc); # 2 + + &punpckldq ("mm0","mm1"); # t[0,1] collected + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 7 + &movz ($key,&HB("ebx")); # 13 + &shl ($acc,24); # 7 + &and ("ebx",0xff); # 12 + &movz ("eax",&BP(-128,$tbl,"eax",1)); # 6 + &or ("ecx",$acc); # 7 + &shl ("eax",16); # 6 + &movz ($acc,&BP(-128,$tbl,$key,1)); # 13 + &or ("edx","eax"); # 6 + &shl ($acc,8); # 13 + &movz ("ebx",&BP(-128,$tbl,"ebx",1)); # 12 + &or ("ecx",$acc); # 13 + &or ("edx","ebx"); # 12 + &mov ($key,$__key); + &movd ("mm4","ecx"); # t[2] collected + &movd ("mm5","edx"); # t[3] collected + + &punpckldq ("mm4","mm5"); # t[2,3] collected +} + + if (!$x86only) { +&function_begin_B("_sse_AES_encrypt_compact"); + &pxor ("mm0",&QWP(0,$key)); # 7, 6, 5, 4, 3, 2, 1, 0 + &pxor ("mm4",&QWP(8,$key)); # 15,14,13,12,11,10, 9, 8 + + # note that caller is expected to allocate stack frame for me! + &mov ($acc,&DWP(240,$key)); # load key->rounds + &lea ($acc,&DWP(-2,$acc,$acc)); + &lea ($acc,&DWP(0,$key,$acc,8)); + &mov ($__end,$acc); # end of key schedule + + &mov ($s0,0x1b1b1b1b); # magic constant + &mov (&DWP(8,"esp"),$s0); + &mov (&DWP(12,"esp"),$s0); + + # prefetch Te4 + &mov ($s0,&DWP(0-128,$tbl)); + &mov ($s1,&DWP(32-128,$tbl)); + &mov ($s2,&DWP(64-128,$tbl)); + &mov ($s3,&DWP(96-128,$tbl)); + &mov ($s0,&DWP(128-128,$tbl)); + &mov ($s1,&DWP(160-128,$tbl)); + &mov ($s2,&DWP(192-128,$tbl)); + &mov ($s3,&DWP(224-128,$tbl)); + + &set_label("loop",16); + &sse_enccompact(); + &add ($key,16); + &cmp ($key,$__end); + &ja (&label("out")); + + &movq ("mm2",&QWP(8,"esp")); + &pxor ("mm3","mm3"); &pxor ("mm7","mm7"); + &movq ("mm1","mm0"); &movq ("mm5","mm4"); # r0 + &pcmpgtb("mm3","mm0"); &pcmpgtb("mm7","mm4"); + &pand ("mm3","mm2"); &pand ("mm7","mm2"); + &pshufw ("mm2","mm0",0xb1); &pshufw ("mm6","mm4",0xb1);# ROTATE(r0,16) + &paddb ("mm0","mm0"); &paddb ("mm4","mm4"); + &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # = r2 + &pshufw ("mm3","mm2",0xb1); &pshufw ("mm7","mm6",0xb1);# r0 + &pxor ("mm1","mm0"); &pxor ("mm5","mm4"); # r0^r2 + &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= ROTATE(r0,16) + + &movq ("mm2","mm3"); &movq ("mm6","mm7"); + &pslld ("mm3",8); &pslld ("mm7",8); + &psrld ("mm2",24); &psrld ("mm6",24); + &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= r0<<8 + &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= r0>>24 + + &movq ("mm3","mm1"); &movq ("mm7","mm5"); + &movq ("mm2",&QWP(0,$key)); &movq ("mm6",&QWP(8,$key)); + &psrld ("mm1",8); &psrld ("mm5",8); + &mov ($s0,&DWP(0-128,$tbl)); + &pslld ("mm3",24); &pslld ("mm7",24); + &mov ($s1,&DWP(64-128,$tbl)); + &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= (r2^r0)<<8 + &mov ($s2,&DWP(128-128,$tbl)); + &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= (r2^r0)>>24 + &mov ($s3,&DWP(192-128,$tbl)); + + &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); + &jmp (&label("loop")); + + &set_label("out",16); + &pxor ("mm0",&QWP(0,$key)); + &pxor ("mm4",&QWP(8,$key)); + + &ret (); +&function_end_B("_sse_AES_encrypt_compact"); + } + +###################################################################### +# Vanilla block function. +###################################################################### + +sub encstep() +{ my ($i,$te,@s) = @_; + my $tmp = $key; + my $out = $i==3?$s[0]:$acc; + + # lines marked with #%e?x[i] denote "reordered" instructions... + if ($i==3) { &mov ($key,$__key); }##%edx + else { &mov ($out,$s[0]); + &and ($out,0xFF); } + if ($i==1) { &shr ($s[0],16); }#%ebx[1] + if ($i==2) { &shr ($s[0],24); }#%ecx[2] + &mov ($out,&DWP(0,$te,$out,8)); + + if ($i==3) { $tmp=$s[1]; }##%eax + &movz ($tmp,&HB($s[1])); + &xor ($out,&DWP(3,$te,$tmp,8)); + + if ($i==3) { $tmp=$s[2]; &mov ($s[1],$__s0); }##%ebx + else { &mov ($tmp,$s[2]); + &shr ($tmp,16); } + if ($i==2) { &and ($s[1],0xFF); }#%edx[2] + &and ($tmp,0xFF); + &xor ($out,&DWP(2,$te,$tmp,8)); + + if ($i==3) { $tmp=$s[3]; &mov ($s[2],$__s1); }##%ecx + elsif($i==2){ &movz ($tmp,&HB($s[3])); }#%ebx[2] + else { &mov ($tmp,$s[3]); + &shr ($tmp,24) } + &xor ($out,&DWP(1,$te,$tmp,8)); + if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } + if ($i==3) { &mov ($s[3],$acc); } + &comment(); +} + +sub enclast() +{ my ($i,$te,@s)=@_; + my $tmp = $key; + my $out = $i==3?$s[0]:$acc; + + if ($i==3) { &mov ($key,$__key); }##%edx + else { &mov ($out,$s[0]); } + &and ($out,0xFF); + if ($i==1) { &shr ($s[0],16); }#%ebx[1] + if ($i==2) { &shr ($s[0],24); }#%ecx[2] + &mov ($out,&DWP(2,$te,$out,8)); + &and ($out,0x000000ff); + + if ($i==3) { $tmp=$s[1]; }##%eax + &movz ($tmp,&HB($s[1])); + &mov ($tmp,&DWP(0,$te,$tmp,8)); + &and ($tmp,0x0000ff00); + &xor ($out,$tmp); + + if ($i==3) { $tmp=$s[2]; &mov ($s[1],$__s0); }##%ebx + else { &mov ($tmp,$s[2]); + &shr ($tmp,16); } + if ($i==2) { &and ($s[1],0xFF); }#%edx[2] + &and ($tmp,0xFF); + &mov ($tmp,&DWP(0,$te,$tmp,8)); + &and ($tmp,0x00ff0000); + &xor ($out,$tmp); + + if ($i==3) { $tmp=$s[3]; &mov ($s[2],$__s1); }##%ecx + elsif($i==2){ &movz ($tmp,&HB($s[3])); }#%ebx[2] + else { &mov ($tmp,$s[3]); + &shr ($tmp,24); } + &mov ($tmp,&DWP(2,$te,$tmp,8)); + &and ($tmp,0xff000000); + &xor ($out,$tmp); + if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } + if ($i==3) { &mov ($s[3],$acc); } +} + +&function_begin_B("_x86_AES_encrypt"); + if ($vertical_spin) { + # I need high parts of volatile registers to be accessible... + &exch ($s1="edi",$key="ebx"); + &mov ($s2="esi",$acc="ecx"); + } + + # note that caller is expected to allocate stack frame for me! + &mov ($__key,$key); # save key + + &xor ($s0,&DWP(0,$key)); # xor with key + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &mov ($acc,&DWP(240,$key)); # load key->rounds + + if ($small_footprint) { + &lea ($acc,&DWP(-2,$acc,$acc)); + &lea ($acc,&DWP(0,$key,$acc,8)); + &mov ($__end,$acc); # end of key schedule + + &set_label("loop",16); + if ($vertical_spin) { + &encvert($tbl,$s0,$s1,$s2,$s3); + } else { + &encstep(0,$tbl,$s0,$s1,$s2,$s3); + &encstep(1,$tbl,$s1,$s2,$s3,$s0); + &encstep(2,$tbl,$s2,$s3,$s0,$s1); + &encstep(3,$tbl,$s3,$s0,$s1,$s2); + } + &add ($key,16); # advance rd_key + &xor ($s0,&DWP(0,$key)); + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + &cmp ($key,$__end); + &mov ($__key,$key); + &jb (&label("loop")); + } + else { + &cmp ($acc,10); + &jle (&label("10rounds")); + &cmp ($acc,12); + &jle (&label("12rounds")); + + &set_label("14rounds",4); + for ($i=1;$i<3;$i++) { + if ($vertical_spin) { + &encvert($tbl,$s0,$s1,$s2,$s3); + } else { + &encstep(0,$tbl,$s0,$s1,$s2,$s3); + &encstep(1,$tbl,$s1,$s2,$s3,$s0); + &encstep(2,$tbl,$s2,$s3,$s0,$s1); + &encstep(3,$tbl,$s3,$s0,$s1,$s2); + } + &xor ($s0,&DWP(16*$i+0,$key)); + &xor ($s1,&DWP(16*$i+4,$key)); + &xor ($s2,&DWP(16*$i+8,$key)); + &xor ($s3,&DWP(16*$i+12,$key)); + } + &add ($key,32); + &mov ($__key,$key); # advance rd_key + &set_label("12rounds",4); + for ($i=1;$i<3;$i++) { + if ($vertical_spin) { + &encvert($tbl,$s0,$s1,$s2,$s3); + } else { + &encstep(0,$tbl,$s0,$s1,$s2,$s3); + &encstep(1,$tbl,$s1,$s2,$s3,$s0); + &encstep(2,$tbl,$s2,$s3,$s0,$s1); + &encstep(3,$tbl,$s3,$s0,$s1,$s2); + } + &xor ($s0,&DWP(16*$i+0,$key)); + &xor ($s1,&DWP(16*$i+4,$key)); + &xor ($s2,&DWP(16*$i+8,$key)); + &xor ($s3,&DWP(16*$i+12,$key)); + } + &add ($key,32); + &mov ($__key,$key); # advance rd_key + &set_label("10rounds",4); + for ($i=1;$i<10;$i++) { + if ($vertical_spin) { + &encvert($tbl,$s0,$s1,$s2,$s3); + } else { + &encstep(0,$tbl,$s0,$s1,$s2,$s3); + &encstep(1,$tbl,$s1,$s2,$s3,$s0); + &encstep(2,$tbl,$s2,$s3,$s0,$s1); + &encstep(3,$tbl,$s3,$s0,$s1,$s2); + } + &xor ($s0,&DWP(16*$i+0,$key)); + &xor ($s1,&DWP(16*$i+4,$key)); + &xor ($s2,&DWP(16*$i+8,$key)); + &xor ($s3,&DWP(16*$i+12,$key)); + } + } + + if ($vertical_spin) { + # "reincarnate" some registers for "horizontal" spin... + &mov ($s1="ebx",$key="edi"); + &mov ($s2="ecx",$acc="esi"); + } + &enclast(0,$tbl,$s0,$s1,$s2,$s3); + &enclast(1,$tbl,$s1,$s2,$s3,$s0); + &enclast(2,$tbl,$s2,$s3,$s0,$s1); + &enclast(3,$tbl,$s3,$s0,$s1,$s2); + + &add ($key,$small_footprint?16:160); + &xor ($s0,&DWP(0,$key)); + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &ret (); + +&set_label("AES_Te",64); # Yes! I keep it in the code segment! + &_data_word(0xa56363c6, 0x847c7cf8, 0x997777ee, 0x8d7b7bf6); + &_data_word(0x0df2f2ff, 0xbd6b6bd6, 0xb16f6fde, 0x54c5c591); + &_data_word(0x50303060, 0x03010102, 0xa96767ce, 0x7d2b2b56); + &_data_word(0x19fefee7, 0x62d7d7b5, 0xe6abab4d, 0x9a7676ec); + &_data_word(0x45caca8f, 0x9d82821f, 0x40c9c989, 0x877d7dfa); + &_data_word(0x15fafaef, 0xeb5959b2, 0xc947478e, 0x0bf0f0fb); + &_data_word(0xecadad41, 0x67d4d4b3, 0xfda2a25f, 0xeaafaf45); + &_data_word(0xbf9c9c23, 0xf7a4a453, 0x967272e4, 0x5bc0c09b); + &_data_word(0xc2b7b775, 0x1cfdfde1, 0xae93933d, 0x6a26264c); + &_data_word(0x5a36366c, 0x413f3f7e, 0x02f7f7f5, 0x4fcccc83); + &_data_word(0x5c343468, 0xf4a5a551, 0x34e5e5d1, 0x08f1f1f9); + &_data_word(0x937171e2, 0x73d8d8ab, 0x53313162, 0x3f15152a); + &_data_word(0x0c040408, 0x52c7c795, 0x65232346, 0x5ec3c39d); + &_data_word(0x28181830, 0xa1969637, 0x0f05050a, 0xb59a9a2f); + &_data_word(0x0907070e, 0x36121224, 0x9b80801b, 0x3de2e2df); + &_data_word(0x26ebebcd, 0x6927274e, 0xcdb2b27f, 0x9f7575ea); + &_data_word(0x1b090912, 0x9e83831d, 0x742c2c58, 0x2e1a1a34); + &_data_word(0x2d1b1b36, 0xb26e6edc, 0xee5a5ab4, 0xfba0a05b); + &_data_word(0xf65252a4, 0x4d3b3b76, 0x61d6d6b7, 0xceb3b37d); + &_data_word(0x7b292952, 0x3ee3e3dd, 0x712f2f5e, 0x97848413); + &_data_word(0xf55353a6, 0x68d1d1b9, 0x00000000, 0x2cededc1); + &_data_word(0x60202040, 0x1ffcfce3, 0xc8b1b179, 0xed5b5bb6); + &_data_word(0xbe6a6ad4, 0x46cbcb8d, 0xd9bebe67, 0x4b393972); + &_data_word(0xde4a4a94, 0xd44c4c98, 0xe85858b0, 0x4acfcf85); + &_data_word(0x6bd0d0bb, 0x2aefefc5, 0xe5aaaa4f, 0x16fbfbed); + &_data_word(0xc5434386, 0xd74d4d9a, 0x55333366, 0x94858511); + &_data_word(0xcf45458a, 0x10f9f9e9, 0x06020204, 0x817f7ffe); + &_data_word(0xf05050a0, 0x443c3c78, 0xba9f9f25, 0xe3a8a84b); + &_data_word(0xf35151a2, 0xfea3a35d, 0xc0404080, 0x8a8f8f05); + &_data_word(0xad92923f, 0xbc9d9d21, 0x48383870, 0x04f5f5f1); + &_data_word(0xdfbcbc63, 0xc1b6b677, 0x75dadaaf, 0x63212142); + &_data_word(0x30101020, 0x1affffe5, 0x0ef3f3fd, 0x6dd2d2bf); + &_data_word(0x4ccdcd81, 0x140c0c18, 0x35131326, 0x2fececc3); + &_data_word(0xe15f5fbe, 0xa2979735, 0xcc444488, 0x3917172e); + &_data_word(0x57c4c493, 0xf2a7a755, 0x827e7efc, 0x473d3d7a); + &_data_word(0xac6464c8, 0xe75d5dba, 0x2b191932, 0x957373e6); + &_data_word(0xa06060c0, 0x98818119, 0xd14f4f9e, 0x7fdcdca3); + &_data_word(0x66222244, 0x7e2a2a54, 0xab90903b, 0x8388880b); + &_data_word(0xca46468c, 0x29eeeec7, 0xd3b8b86b, 0x3c141428); + &_data_word(0x79dedea7, 0xe25e5ebc, 0x1d0b0b16, 0x76dbdbad); + &_data_word(0x3be0e0db, 0x56323264, 0x4e3a3a74, 0x1e0a0a14); + &_data_word(0xdb494992, 0x0a06060c, 0x6c242448, 0xe45c5cb8); + &_data_word(0x5dc2c29f, 0x6ed3d3bd, 0xefacac43, 0xa66262c4); + &_data_word(0xa8919139, 0xa4959531, 0x37e4e4d3, 0x8b7979f2); + &_data_word(0x32e7e7d5, 0x43c8c88b, 0x5937376e, 0xb76d6dda); + &_data_word(0x8c8d8d01, 0x64d5d5b1, 0xd24e4e9c, 0xe0a9a949); + &_data_word(0xb46c6cd8, 0xfa5656ac, 0x07f4f4f3, 0x25eaeacf); + &_data_word(0xaf6565ca, 0x8e7a7af4, 0xe9aeae47, 0x18080810); + &_data_word(0xd5baba6f, 0x887878f0, 0x6f25254a, 0x722e2e5c); + &_data_word(0x241c1c38, 0xf1a6a657, 0xc7b4b473, 0x51c6c697); + &_data_word(0x23e8e8cb, 0x7cdddda1, 0x9c7474e8, 0x211f1f3e); + &_data_word(0xdd4b4b96, 0xdcbdbd61, 0x868b8b0d, 0x858a8a0f); + &_data_word(0x907070e0, 0x423e3e7c, 0xc4b5b571, 0xaa6666cc); + &_data_word(0xd8484890, 0x05030306, 0x01f6f6f7, 0x120e0e1c); + &_data_word(0xa36161c2, 0x5f35356a, 0xf95757ae, 0xd0b9b969); + &_data_word(0x91868617, 0x58c1c199, 0x271d1d3a, 0xb99e9e27); + &_data_word(0x38e1e1d9, 0x13f8f8eb, 0xb398982b, 0x33111122); + &_data_word(0xbb6969d2, 0x70d9d9a9, 0x898e8e07, 0xa7949433); + &_data_word(0xb69b9b2d, 0x221e1e3c, 0x92878715, 0x20e9e9c9); + &_data_word(0x49cece87, 0xff5555aa, 0x78282850, 0x7adfdfa5); + &_data_word(0x8f8c8c03, 0xf8a1a159, 0x80898909, 0x170d0d1a); + &_data_word(0xdabfbf65, 0x31e6e6d7, 0xc6424284, 0xb86868d0); + &_data_word(0xc3414182, 0xb0999929, 0x772d2d5a, 0x110f0f1e); + &_data_word(0xcbb0b07b, 0xfc5454a8, 0xd6bbbb6d, 0x3a16162c); + +#Te4 # four copies of Te4 to choose from to avoid L1 aliasing + &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); + &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); + &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); + &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); + &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); + &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); + &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); + &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); + &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); + &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); + &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); + &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); + &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); + &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); + &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); + &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); + &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); + &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); + &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); + &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); + &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); + &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); + &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); + &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); + &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); + &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); + &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); + &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); + &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); + &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); + &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); + &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); + + &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); + &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); + &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); + &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); + &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); + &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); + &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); + &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); + &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); + &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); + &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); + &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); + &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); + &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); + &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); + &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); + &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); + &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); + &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); + &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); + &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); + &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); + &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); + &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); + &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); + &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); + &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); + &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); + &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); + &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); + &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); + &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); + + &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); + &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); + &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); + &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); + &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); + &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); + &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); + &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); + &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); + &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); + &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); + &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); + &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); + &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); + &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); + &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); + &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); + &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); + &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); + &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); + &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); + &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); + &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); + &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); + &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); + &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); + &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); + &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); + &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); + &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); + &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); + &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); + + &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); + &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); + &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); + &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); + &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); + &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); + &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); + &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); + &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); + &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); + &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); + &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); + &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); + &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); + &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); + &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); + &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); + &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); + &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); + &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); + &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); + &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); + &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); + &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); + &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); + &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); + &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); + &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); + &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); + &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); + &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); + &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); +#rcon: + &data_word(0x00000001, 0x00000002, 0x00000004, 0x00000008); + &data_word(0x00000010, 0x00000020, 0x00000040, 0x00000080); + &data_word(0x0000001b, 0x00000036, 0x00000000, 0x00000000); + &data_word(0x00000000, 0x00000000, 0x00000000, 0x00000000); +&function_end_B("_x86_AES_encrypt"); + +# void AES_encrypt (const void *inp,void *out,const AES_KEY *key); +&function_begin("AES_encrypt"); + &mov ($acc,&wparam(0)); # load inp + &mov ($key,&wparam(2)); # load key + + &mov ($s0,"esp"); + &sub ("esp",36); + &and ("esp",-64); # align to cache-line + + # place stack frame just "above" the key schedule + &lea ($s1,&DWP(-64-63,$key)); + &sub ($s1,"esp"); + &neg ($s1); + &and ($s1,0x3C0); # modulo 1024, but aligned to cache-line + &sub ("esp",$s1); + &add ("esp",4); # 4 is reserved for caller's return address + &mov ($_esp,$s0); # save stack pointer + + &call (&label("pic_point")); # make it PIC! + &set_label("pic_point"); + &blindpop($tbl); + &picmeup($s0,"OPENSSL_ia32cap_P",$tbl,&label("pic_point")) if (!$x86only); + &lea ($tbl,&DWP(&label("AES_Te")."-".&label("pic_point"),$tbl)); + + # pick Te4 copy which can't "overlap" with stack frame or key schedule + &lea ($s1,&DWP(768-4,"esp")); + &sub ($s1,$tbl); + &and ($s1,0x300); + &lea ($tbl,&DWP(2048+128,$tbl,$s1)); + + if (!$x86only) { + &bt (&DWP(0,$s0),25); # check for SSE bit + &jnc (&label("x86")); + + &movq ("mm0",&QWP(0,$acc)); + &movq ("mm4",&QWP(8,$acc)); + &call ("_sse_AES_encrypt_compact"); + &mov ("esp",$_esp); # restore stack pointer + &mov ($acc,&wparam(1)); # load out + &movq (&QWP(0,$acc),"mm0"); # write output data + &movq (&QWP(8,$acc),"mm4"); + &emms (); + &function_end_A(); + } + &set_label("x86",16); + &mov ($_tbl,$tbl); + &mov ($s0,&DWP(0,$acc)); # load input data + &mov ($s1,&DWP(4,$acc)); + &mov ($s2,&DWP(8,$acc)); + &mov ($s3,&DWP(12,$acc)); + &call ("_x86_AES_encrypt_compact"); + &mov ("esp",$_esp); # restore stack pointer + &mov ($acc,&wparam(1)); # load out + &mov (&DWP(0,$acc),$s0); # write output data + &mov (&DWP(4,$acc),$s1); + &mov (&DWP(8,$acc),$s2); + &mov (&DWP(12,$acc),$s3); +&function_end("AES_encrypt"); + +#--------------------------------------------------------------------# + +###################################################################### +# "Compact" block function +###################################################################### + +sub deccompact() +{ my $Fn = \&mov; + while ($#_>5) { pop(@_); $Fn=sub{}; } + my ($i,$td,@s)=@_; + my $tmp = $key; + my $out = $i==3?$s[0]:$acc; + + # $Fn is used in first compact round and its purpose is to + # void restoration of some values from stack, so that after + # 4xdeccompact with extra argument $key, $s0 and $s1 values + # are left there... + if($i==3) { &$Fn ($key,$__key); } + else { &mov ($out,$s[0]); } + &and ($out,0xFF); + &movz ($out,&BP(-128,$td,$out,1)); + + if ($i==3) { $tmp=$s[1]; } + &movz ($tmp,&HB($s[1])); + &movz ($tmp,&BP(-128,$td,$tmp,1)); + &shl ($tmp,8); + &xor ($out,$tmp); + + if ($i==3) { $tmp=$s[2]; &mov ($s[1],$acc); } + else { mov ($tmp,$s[2]); } + &shr ($tmp,16); + &and ($tmp,0xFF); + &movz ($tmp,&BP(-128,$td,$tmp,1)); + &shl ($tmp,16); + &xor ($out,$tmp); + + if ($i==3) { $tmp=$s[3]; &$Fn ($s[2],$__s1); } + else { &mov ($tmp,$s[3]); } + &shr ($tmp,24); + &movz ($tmp,&BP(-128,$td,$tmp,1)); + &shl ($tmp,24); + &xor ($out,$tmp); + if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } + if ($i==3) { &$Fn ($s[3],$__s0); } +} + +# must be called with 2,3,0,1 as argument sequence!!! +sub dectransform() +{ my @s = ($s0,$s1,$s2,$s3); + my $i = shift; + my $tmp = $key; + my $tp2 = @s[($i+2)%4]; $tp2 = @s[2] if ($i==1); + my $tp4 = @s[($i+3)%4]; $tp4 = @s[3] if ($i==1); + my $tp8 = $tbl; + + &mov ($tmp,0x80808080); + &and ($tmp,$s[$i]); + &mov ($acc,$tmp); + &shr ($tmp,7); + &lea ($tp2,&DWP(0,$s[$i],$s[$i])); + &sub ($acc,$tmp); + &and ($tp2,0xfefefefe); + &and ($acc,0x1b1b1b1b); + &xor ($tp2,$acc); + &mov ($tmp,0x80808080); + + &and ($tmp,$tp2); + &mov ($acc,$tmp); + &shr ($tmp,7); + &lea ($tp4,&DWP(0,$tp2,$tp2)); + &sub ($acc,$tmp); + &and ($tp4,0xfefefefe); + &and ($acc,0x1b1b1b1b); + &xor ($tp2,$s[$i]); # tp2^tp1 + &xor ($tp4,$acc); + &mov ($tmp,0x80808080); + + &and ($tmp,$tp4); + &mov ($acc,$tmp); + &shr ($tmp,7); + &lea ($tp8,&DWP(0,$tp4,$tp4)); + &sub ($acc,$tmp); + &and ($tp8,0xfefefefe); + &and ($acc,0x1b1b1b1b); + &xor ($tp4,$s[$i]); # tp4^tp1 + &rotl ($s[$i],8); # = ROTATE(tp1,8) + &xor ($tp8,$acc); + + &xor ($s[$i],$tp2); + &xor ($tp2,$tp8); + &xor ($s[$i],$tp4); + &xor ($tp4,$tp8); + &rotl ($tp2,24); + &xor ($s[$i],$tp8); # ^= tp8^(tp4^tp1)^(tp2^tp1) + &rotl ($tp4,16); + &xor ($s[$i],$tp2); # ^= ROTATE(tp8^tp2^tp1,24) + &rotl ($tp8,8); + &xor ($s[$i],$tp4); # ^= ROTATE(tp8^tp4^tp1,16) + &mov ($s[0],$__s0) if($i==2); #prefetch $s0 + &mov ($s[1],$__s1) if($i==3); #prefetch $s1 + &mov ($s[2],$__s2) if($i==1); + &xor ($s[$i],$tp8); # ^= ROTATE(tp8,8) + + &mov ($s[3],$__s3) if($i==1); + &mov (&DWP(4+4*$i,"esp"),$s[$i]) if($i>=2); +} + +&function_begin_B("_x86_AES_decrypt_compact"); + # note that caller is expected to allocate stack frame for me! + &mov ($__key,$key); # save key + + &xor ($s0,&DWP(0,$key)); # xor with key + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &mov ($acc,&DWP(240,$key)); # load key->rounds + + &lea ($acc,&DWP(-2,$acc,$acc)); + &lea ($acc,&DWP(0,$key,$acc,8)); + &mov ($__end,$acc); # end of key schedule + + # prefetch Td4 + &mov ($key,&DWP(0-128,$tbl)); + &mov ($acc,&DWP(32-128,$tbl)); + &mov ($key,&DWP(64-128,$tbl)); + &mov ($acc,&DWP(96-128,$tbl)); + &mov ($key,&DWP(128-128,$tbl)); + &mov ($acc,&DWP(160-128,$tbl)); + &mov ($key,&DWP(192-128,$tbl)); + &mov ($acc,&DWP(224-128,$tbl)); + + &set_label("loop",16); + + &deccompact(0,$tbl,$s0,$s3,$s2,$s1,1); + &deccompact(1,$tbl,$s1,$s0,$s3,$s2,1); + &deccompact(2,$tbl,$s2,$s1,$s0,$s3,1); + &deccompact(3,$tbl,$s3,$s2,$s1,$s0,1); + &dectransform(2); + &dectransform(3); + &dectransform(0); + &dectransform(1); + &mov ($key,$__key); + &mov ($tbl,$__tbl); + &add ($key,16); # advance rd_key + &xor ($s0,&DWP(0,$key)); + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &cmp ($key,$__end); + &mov ($__key,$key); + &jb (&label("loop")); + + &deccompact(0,$tbl,$s0,$s3,$s2,$s1); + &deccompact(1,$tbl,$s1,$s0,$s3,$s2); + &deccompact(2,$tbl,$s2,$s1,$s0,$s3); + &deccompact(3,$tbl,$s3,$s2,$s1,$s0); + + &xor ($s0,&DWP(16,$key)); + &xor ($s1,&DWP(20,$key)); + &xor ($s2,&DWP(24,$key)); + &xor ($s3,&DWP(28,$key)); + + &ret (); +&function_end_B("_x86_AES_decrypt_compact"); + +###################################################################### +# "Compact" SSE block function. +###################################################################### + +sub sse_deccompact() +{ + &pshufw ("mm1","mm0",0x0c); # 7, 6, 1, 0 + &pshufw ("mm5","mm4",0x09); # 13,12,11,10 + &movd ("eax","mm1"); # 7, 6, 1, 0 + &movd ("ebx","mm5"); # 13,12,11,10 + &mov ($__key,$key); + + &movz ($acc,&LB("eax")); # 0 + &movz ("edx",&HB("eax")); # 1 + &pshufw ("mm2","mm0",0x06); # 3, 2, 5, 4 + &movz ("ecx",&BP(-128,$tbl,$acc,1)); # 0 + &movz ($key,&LB("ebx")); # 10 + &movz ("edx",&BP(-128,$tbl,"edx",1)); # 1 + &shr ("eax",16); # 7, 6 + &shl ("edx",8); # 1 + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 10 + &movz ($key,&HB("ebx")); # 11 + &shl ($acc,16); # 10 + &pshufw ("mm6","mm4",0x03); # 9, 8,15,14 + &or ("ecx",$acc); # 10 + &movz ($acc,&BP(-128,$tbl,$key,1)); # 11 + &movz ($key,&HB("eax")); # 7 + &shl ($acc,24); # 11 + &shr ("ebx",16); # 13,12 + &or ("edx",$acc); # 11 + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 7 + &movz ($key,&HB("ebx")); # 13 + &shl ($acc,24); # 7 + &or ("ecx",$acc); # 7 + &movz ($acc,&BP(-128,$tbl,$key,1)); # 13 + &movz ($key,&LB("eax")); # 6 + &shl ($acc,8); # 13 + &movd ("eax","mm2"); # 3, 2, 5, 4 + &or ("ecx",$acc); # 13 + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 6 + &movz ($key,&LB("ebx")); # 12 + &shl ($acc,16); # 6 + &movd ("ebx","mm6"); # 9, 8,15,14 + &movd ("mm0","ecx"); # t[0] collected + &movz ("ecx",&BP(-128,$tbl,$key,1)); # 12 + &movz ($key,&LB("eax")); # 4 + &or ("ecx",$acc); # 12 + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 4 + &movz ($key,&LB("ebx")); # 14 + &or ("edx",$acc); # 4 + &movz ($acc,&BP(-128,$tbl,$key,1)); # 14 + &movz ($key,&HB("eax")); # 5 + &shl ($acc,16); # 14 + &shr ("eax",16); # 3, 2 + &or ("edx",$acc); # 14 + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 5 + &movz ($key,&HB("ebx")); # 15 + &shr ("ebx",16); # 9, 8 + &shl ($acc,8); # 5 + &movd ("mm1","edx"); # t[1] collected + &movz ("edx",&BP(-128,$tbl,$key,1)); # 15 + &movz ($key,&HB("ebx")); # 9 + &shl ("edx",24); # 15 + &and ("ebx",0xff); # 8 + &or ("edx",$acc); # 15 + + &punpckldq ("mm0","mm1"); # t[0,1] collected + + &movz ($acc,&BP(-128,$tbl,$key,1)); # 9 + &movz ($key,&LB("eax")); # 2 + &shl ($acc,8); # 9 + &movz ("eax",&HB("eax")); # 3 + &movz ("ebx",&BP(-128,$tbl,"ebx",1)); # 8 + &or ("ecx",$acc); # 9 + &movz ($acc,&BP(-128,$tbl,$key,1)); # 2 + &or ("edx","ebx"); # 8 + &shl ($acc,16); # 2 + &movz ("eax",&BP(-128,$tbl,"eax",1)); # 3 + &or ("edx",$acc); # 2 + &shl ("eax",24); # 3 + &or ("ecx","eax"); # 3 + &mov ($key,$__key); + &movd ("mm4","edx"); # t[2] collected + &movd ("mm5","ecx"); # t[3] collected + + &punpckldq ("mm4","mm5"); # t[2,3] collected +} + + if (!$x86only) { +&function_begin_B("_sse_AES_decrypt_compact"); + &pxor ("mm0",&QWP(0,$key)); # 7, 6, 5, 4, 3, 2, 1, 0 + &pxor ("mm4",&QWP(8,$key)); # 15,14,13,12,11,10, 9, 8 + + # note that caller is expected to allocate stack frame for me! + &mov ($acc,&DWP(240,$key)); # load key->rounds + &lea ($acc,&DWP(-2,$acc,$acc)); + &lea ($acc,&DWP(0,$key,$acc,8)); + &mov ($__end,$acc); # end of key schedule + + &mov ($s0,0x1b1b1b1b); # magic constant + &mov (&DWP(8,"esp"),$s0); + &mov (&DWP(12,"esp"),$s0); + + # prefetch Td4 + &mov ($s0,&DWP(0-128,$tbl)); + &mov ($s1,&DWP(32-128,$tbl)); + &mov ($s2,&DWP(64-128,$tbl)); + &mov ($s3,&DWP(96-128,$tbl)); + &mov ($s0,&DWP(128-128,$tbl)); + &mov ($s1,&DWP(160-128,$tbl)); + &mov ($s2,&DWP(192-128,$tbl)); + &mov ($s3,&DWP(224-128,$tbl)); + + &set_label("loop",16); + &sse_deccompact(); + &add ($key,16); + &cmp ($key,$__end); + &ja (&label("out")); + + # ROTATE(x^y,N) == ROTATE(x,N)^ROTATE(y,N) + &movq ("mm3","mm0"); &movq ("mm7","mm4"); + &movq ("mm2","mm0",1); &movq ("mm6","mm4",1); + &movq ("mm1","mm0"); &movq ("mm5","mm4"); + &pshufw ("mm0","mm0",0xb1); &pshufw ("mm4","mm4",0xb1);# = ROTATE(tp0,16) + &pslld ("mm2",8); &pslld ("mm6",8); + &psrld ("mm3",8); &psrld ("mm7",8); + &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= tp0<<8 + &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= tp0>>8 + &pslld ("mm2",16); &pslld ("mm6",16); + &psrld ("mm3",16); &psrld ("mm7",16); + &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= tp0<<24 + &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= tp0>>24 + + &movq ("mm3",&QWP(8,"esp")); + &pxor ("mm2","mm2"); &pxor ("mm6","mm6"); + &pcmpgtb("mm2","mm1"); &pcmpgtb("mm6","mm5"); + &pand ("mm2","mm3"); &pand ("mm6","mm3"); + &paddb ("mm1","mm1"); &paddb ("mm5","mm5"); + &pxor ("mm1","mm2"); &pxor ("mm5","mm6"); # tp2 + &movq ("mm3","mm1"); &movq ("mm7","mm5"); + &movq ("mm2","mm1"); &movq ("mm6","mm5"); + &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= tp2 + &pslld ("mm3",24); &pslld ("mm7",24); + &psrld ("mm2",8); &psrld ("mm6",8); + &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= tp2<<24 + &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= tp2>>8 + + &movq ("mm2",&QWP(8,"esp")); + &pxor ("mm3","mm3"); &pxor ("mm7","mm7"); + &pcmpgtb("mm3","mm1"); &pcmpgtb("mm7","mm5"); + &pand ("mm3","mm2"); &pand ("mm7","mm2"); + &paddb ("mm1","mm1"); &paddb ("mm5","mm5"); + &pxor ("mm1","mm3"); &pxor ("mm5","mm7"); # tp4 + &pshufw ("mm3","mm1",0xb1); &pshufw ("mm7","mm5",0xb1); + &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= tp4 + &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= ROTATE(tp4,16) + + &pxor ("mm3","mm3"); &pxor ("mm7","mm7"); + &pcmpgtb("mm3","mm1"); &pcmpgtb("mm7","mm5"); + &pand ("mm3","mm2"); &pand ("mm7","mm2"); + &paddb ("mm1","mm1"); &paddb ("mm5","mm5"); + &pxor ("mm1","mm3"); &pxor ("mm5","mm7"); # tp8 + &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= tp8 + &movq ("mm3","mm1"); &movq ("mm7","mm5"); + &pshufw ("mm2","mm1",0xb1); &pshufw ("mm6","mm5",0xb1); + &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); # ^= ROTATE(tp8,16) + &pslld ("mm1",8); &pslld ("mm5",8); + &psrld ("mm3",8); &psrld ("mm7",8); + &movq ("mm2",&QWP(0,$key)); &movq ("mm6",&QWP(8,$key)); + &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= tp8<<8 + &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= tp8>>8 + &mov ($s0,&DWP(0-128,$tbl)); + &pslld ("mm1",16); &pslld ("mm5",16); + &mov ($s1,&DWP(64-128,$tbl)); + &psrld ("mm3",16); &psrld ("mm7",16); + &mov ($s2,&DWP(128-128,$tbl)); + &pxor ("mm0","mm1"); &pxor ("mm4","mm5"); # ^= tp8<<24 + &mov ($s3,&DWP(192-128,$tbl)); + &pxor ("mm0","mm3"); &pxor ("mm4","mm7"); # ^= tp8>>24 + + &pxor ("mm0","mm2"); &pxor ("mm4","mm6"); + &jmp (&label("loop")); + + &set_label("out",16); + &pxor ("mm0",&QWP(0,$key)); + &pxor ("mm4",&QWP(8,$key)); + + &ret (); +&function_end_B("_sse_AES_decrypt_compact"); + } + +###################################################################### +# Vanilla block function. +###################################################################### + +sub decstep() +{ my ($i,$td,@s) = @_; + my $tmp = $key; + my $out = $i==3?$s[0]:$acc; + + # no instructions are reordered, as performance appears + # optimal... or rather that all attempts to reorder didn't + # result in better performance [which by the way is not a + # bit lower than ecryption]. + if($i==3) { &mov ($key,$__key); } + else { &mov ($out,$s[0]); } + &and ($out,0xFF); + &mov ($out,&DWP(0,$td,$out,8)); + + if ($i==3) { $tmp=$s[1]; } + &movz ($tmp,&HB($s[1])); + &xor ($out,&DWP(3,$td,$tmp,8)); + + if ($i==3) { $tmp=$s[2]; &mov ($s[1],$acc); } + else { &mov ($tmp,$s[2]); } + &shr ($tmp,16); + &and ($tmp,0xFF); + &xor ($out,&DWP(2,$td,$tmp,8)); + + if ($i==3) { $tmp=$s[3]; &mov ($s[2],$__s1); } + else { &mov ($tmp,$s[3]); } + &shr ($tmp,24); + &xor ($out,&DWP(1,$td,$tmp,8)); + if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } + if ($i==3) { &mov ($s[3],$__s0); } + &comment(); +} + +sub declast() +{ my ($i,$td,@s)=@_; + my $tmp = $key; + my $out = $i==3?$s[0]:$acc; + + if($i==0) { &lea ($td,&DWP(2048+128,$td)); + &mov ($tmp,&DWP(0-128,$td)); + &mov ($acc,&DWP(32-128,$td)); + &mov ($tmp,&DWP(64-128,$td)); + &mov ($acc,&DWP(96-128,$td)); + &mov ($tmp,&DWP(128-128,$td)); + &mov ($acc,&DWP(160-128,$td)); + &mov ($tmp,&DWP(192-128,$td)); + &mov ($acc,&DWP(224-128,$td)); + &lea ($td,&DWP(-128,$td)); } + if($i==3) { &mov ($key,$__key); } + else { &mov ($out,$s[0]); } + &and ($out,0xFF); + &movz ($out,&BP(0,$td,$out,1)); + + if ($i==3) { $tmp=$s[1]; } + &movz ($tmp,&HB($s[1])); + &movz ($tmp,&BP(0,$td,$tmp,1)); + &shl ($tmp,8); + &xor ($out,$tmp); + + if ($i==3) { $tmp=$s[2]; &mov ($s[1],$acc); } + else { mov ($tmp,$s[2]); } + &shr ($tmp,16); + &and ($tmp,0xFF); + &movz ($tmp,&BP(0,$td,$tmp,1)); + &shl ($tmp,16); + &xor ($out,$tmp); + + if ($i==3) { $tmp=$s[3]; &mov ($s[2],$__s1); } + else { &mov ($tmp,$s[3]); } + &shr ($tmp,24); + &movz ($tmp,&BP(0,$td,$tmp,1)); + &shl ($tmp,24); + &xor ($out,$tmp); + if ($i<2) { &mov (&DWP(4+4*$i,"esp"),$out); } + if ($i==3) { &mov ($s[3],$__s0); + &lea ($td,&DWP(-2048,$td)); } +} + +&function_begin_B("_x86_AES_decrypt"); + # note that caller is expected to allocate stack frame for me! + &mov ($__key,$key); # save key + + &xor ($s0,&DWP(0,$key)); # xor with key + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &mov ($acc,&DWP(240,$key)); # load key->rounds + + if ($small_footprint) { + &lea ($acc,&DWP(-2,$acc,$acc)); + &lea ($acc,&DWP(0,$key,$acc,8)); + &mov ($__end,$acc); # end of key schedule + &set_label("loop",16); + &decstep(0,$tbl,$s0,$s3,$s2,$s1); + &decstep(1,$tbl,$s1,$s0,$s3,$s2); + &decstep(2,$tbl,$s2,$s1,$s0,$s3); + &decstep(3,$tbl,$s3,$s2,$s1,$s0); + &add ($key,16); # advance rd_key + &xor ($s0,&DWP(0,$key)); + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + &cmp ($key,$__end); + &mov ($__key,$key); + &jb (&label("loop")); + } + else { + &cmp ($acc,10); + &jle (&label("10rounds")); + &cmp ($acc,12); + &jle (&label("12rounds")); + + &set_label("14rounds",4); + for ($i=1;$i<3;$i++) { + &decstep(0,$tbl,$s0,$s3,$s2,$s1); + &decstep(1,$tbl,$s1,$s0,$s3,$s2); + &decstep(2,$tbl,$s2,$s1,$s0,$s3); + &decstep(3,$tbl,$s3,$s2,$s1,$s0); + &xor ($s0,&DWP(16*$i+0,$key)); + &xor ($s1,&DWP(16*$i+4,$key)); + &xor ($s2,&DWP(16*$i+8,$key)); + &xor ($s3,&DWP(16*$i+12,$key)); + } + &add ($key,32); + &mov ($__key,$key); # advance rd_key + &set_label("12rounds",4); + for ($i=1;$i<3;$i++) { + &decstep(0,$tbl,$s0,$s3,$s2,$s1); + &decstep(1,$tbl,$s1,$s0,$s3,$s2); + &decstep(2,$tbl,$s2,$s1,$s0,$s3); + &decstep(3,$tbl,$s3,$s2,$s1,$s0); + &xor ($s0,&DWP(16*$i+0,$key)); + &xor ($s1,&DWP(16*$i+4,$key)); + &xor ($s2,&DWP(16*$i+8,$key)); + &xor ($s3,&DWP(16*$i+12,$key)); + } + &add ($key,32); + &mov ($__key,$key); # advance rd_key + &set_label("10rounds",4); + for ($i=1;$i<10;$i++) { + &decstep(0,$tbl,$s0,$s3,$s2,$s1); + &decstep(1,$tbl,$s1,$s0,$s3,$s2); + &decstep(2,$tbl,$s2,$s1,$s0,$s3); + &decstep(3,$tbl,$s3,$s2,$s1,$s0); + &xor ($s0,&DWP(16*$i+0,$key)); + &xor ($s1,&DWP(16*$i+4,$key)); + &xor ($s2,&DWP(16*$i+8,$key)); + &xor ($s3,&DWP(16*$i+12,$key)); + } + } + + &declast(0,$tbl,$s0,$s3,$s2,$s1); + &declast(1,$tbl,$s1,$s0,$s3,$s2); + &declast(2,$tbl,$s2,$s1,$s0,$s3); + &declast(3,$tbl,$s3,$s2,$s1,$s0); + + &add ($key,$small_footprint?16:160); + &xor ($s0,&DWP(0,$key)); + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &ret (); + +&set_label("AES_Td",64); # Yes! I keep it in the code segment! + &_data_word(0x50a7f451, 0x5365417e, 0xc3a4171a, 0x965e273a); + &_data_word(0xcb6bab3b, 0xf1459d1f, 0xab58faac, 0x9303e34b); + &_data_word(0x55fa3020, 0xf66d76ad, 0x9176cc88, 0x254c02f5); + &_data_word(0xfcd7e54f, 0xd7cb2ac5, 0x80443526, 0x8fa362b5); + &_data_word(0x495ab1de, 0x671bba25, 0x980eea45, 0xe1c0fe5d); + &_data_word(0x02752fc3, 0x12f04c81, 0xa397468d, 0xc6f9d36b); + &_data_word(0xe75f8f03, 0x959c9215, 0xeb7a6dbf, 0xda595295); + &_data_word(0x2d83bed4, 0xd3217458, 0x2969e049, 0x44c8c98e); + &_data_word(0x6a89c275, 0x78798ef4, 0x6b3e5899, 0xdd71b927); + &_data_word(0xb64fe1be, 0x17ad88f0, 0x66ac20c9, 0xb43ace7d); + &_data_word(0x184adf63, 0x82311ae5, 0x60335197, 0x457f5362); + &_data_word(0xe07764b1, 0x84ae6bbb, 0x1ca081fe, 0x942b08f9); + &_data_word(0x58684870, 0x19fd458f, 0x876cde94, 0xb7f87b52); + &_data_word(0x23d373ab, 0xe2024b72, 0x578f1fe3, 0x2aab5566); + &_data_word(0x0728ebb2, 0x03c2b52f, 0x9a7bc586, 0xa50837d3); + &_data_word(0xf2872830, 0xb2a5bf23, 0xba6a0302, 0x5c8216ed); + &_data_word(0x2b1ccf8a, 0x92b479a7, 0xf0f207f3, 0xa1e2694e); + &_data_word(0xcdf4da65, 0xd5be0506, 0x1f6234d1, 0x8afea6c4); + &_data_word(0x9d532e34, 0xa055f3a2, 0x32e18a05, 0x75ebf6a4); + &_data_word(0x39ec830b, 0xaaef6040, 0x069f715e, 0x51106ebd); + &_data_word(0xf98a213e, 0x3d06dd96, 0xae053edd, 0x46bde64d); + &_data_word(0xb58d5491, 0x055dc471, 0x6fd40604, 0xff155060); + &_data_word(0x24fb9819, 0x97e9bdd6, 0xcc434089, 0x779ed967); + &_data_word(0xbd42e8b0, 0x888b8907, 0x385b19e7, 0xdbeec879); + &_data_word(0x470a7ca1, 0xe90f427c, 0xc91e84f8, 0x00000000); + &_data_word(0x83868009, 0x48ed2b32, 0xac70111e, 0x4e725a6c); + &_data_word(0xfbff0efd, 0x5638850f, 0x1ed5ae3d, 0x27392d36); + &_data_word(0x64d90f0a, 0x21a65c68, 0xd1545b9b, 0x3a2e3624); + &_data_word(0xb1670a0c, 0x0fe75793, 0xd296eeb4, 0x9e919b1b); + &_data_word(0x4fc5c080, 0xa220dc61, 0x694b775a, 0x161a121c); + &_data_word(0x0aba93e2, 0xe52aa0c0, 0x43e0223c, 0x1d171b12); + &_data_word(0x0b0d090e, 0xadc78bf2, 0xb9a8b62d, 0xc8a91e14); + &_data_word(0x8519f157, 0x4c0775af, 0xbbdd99ee, 0xfd607fa3); + &_data_word(0x9f2601f7, 0xbcf5725c, 0xc53b6644, 0x347efb5b); + &_data_word(0x7629438b, 0xdcc623cb, 0x68fcedb6, 0x63f1e4b8); + &_data_word(0xcadc31d7, 0x10856342, 0x40229713, 0x2011c684); + &_data_word(0x7d244a85, 0xf83dbbd2, 0x1132f9ae, 0x6da129c7); + &_data_word(0x4b2f9e1d, 0xf330b2dc, 0xec52860d, 0xd0e3c177); + &_data_word(0x6c16b32b, 0x99b970a9, 0xfa489411, 0x2264e947); + &_data_word(0xc48cfca8, 0x1a3ff0a0, 0xd82c7d56, 0xef903322); + &_data_word(0xc74e4987, 0xc1d138d9, 0xfea2ca8c, 0x360bd498); + &_data_word(0xcf81f5a6, 0x28de7aa5, 0x268eb7da, 0xa4bfad3f); + &_data_word(0xe49d3a2c, 0x0d927850, 0x9bcc5f6a, 0x62467e54); + &_data_word(0xc2138df6, 0xe8b8d890, 0x5ef7392e, 0xf5afc382); + &_data_word(0xbe805d9f, 0x7c93d069, 0xa92dd56f, 0xb31225cf); + &_data_word(0x3b99acc8, 0xa77d1810, 0x6e639ce8, 0x7bbb3bdb); + &_data_word(0x097826cd, 0xf418596e, 0x01b79aec, 0xa89a4f83); + &_data_word(0x656e95e6, 0x7ee6ffaa, 0x08cfbc21, 0xe6e815ef); + &_data_word(0xd99be7ba, 0xce366f4a, 0xd4099fea, 0xd67cb029); + &_data_word(0xafb2a431, 0x31233f2a, 0x3094a5c6, 0xc066a235); + &_data_word(0x37bc4e74, 0xa6ca82fc, 0xb0d090e0, 0x15d8a733); + &_data_word(0x4a9804f1, 0xf7daec41, 0x0e50cd7f, 0x2ff69117); + &_data_word(0x8dd64d76, 0x4db0ef43, 0x544daacc, 0xdf0496e4); + &_data_word(0xe3b5d19e, 0x1b886a4c, 0xb81f2cc1, 0x7f516546); + &_data_word(0x04ea5e9d, 0x5d358c01, 0x737487fa, 0x2e410bfb); + &_data_word(0x5a1d67b3, 0x52d2db92, 0x335610e9, 0x1347d66d); + &_data_word(0x8c61d79a, 0x7a0ca137, 0x8e14f859, 0x893c13eb); + &_data_word(0xee27a9ce, 0x35c961b7, 0xede51ce1, 0x3cb1477a); + &_data_word(0x59dfd29c, 0x3f73f255, 0x79ce1418, 0xbf37c773); + &_data_word(0xeacdf753, 0x5baafd5f, 0x146f3ddf, 0x86db4478); + &_data_word(0x81f3afca, 0x3ec468b9, 0x2c342438, 0x5f40a3c2); + &_data_word(0x72c31d16, 0x0c25e2bc, 0x8b493c28, 0x41950dff); + &_data_word(0x7101a839, 0xdeb30c08, 0x9ce4b4d8, 0x90c15664); + &_data_word(0x6184cb7b, 0x70b632d5, 0x745c6c48, 0x4257b8d0); + +#Td4: # four copies of Td4 to choose from to avoid L1 aliasing + &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); + &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); + &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); + &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); + &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); + &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); + &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); + &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); + &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); + &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); + &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); + &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); + &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); + &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); + &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); + &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); + &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); + &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); + &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); + &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); + &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); + &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); + &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); + &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); + &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); + &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); + &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); + &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); + &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); + &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); + &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); + &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); + + &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); + &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); + &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); + &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); + &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); + &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); + &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); + &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); + &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); + &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); + &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); + &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); + &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); + &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); + &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); + &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); + &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); + &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); + &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); + &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); + &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); + &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); + &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); + &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); + &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); + &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); + &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); + &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); + &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); + &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); + &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); + &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); + + &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); + &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); + &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); + &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); + &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); + &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); + &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); + &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); + &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); + &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); + &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); + &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); + &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); + &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); + &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); + &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); + &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); + &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); + &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); + &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); + &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); + &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); + &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); + &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); + &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); + &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); + &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); + &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); + &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); + &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); + &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); + &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); + + &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); + &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); + &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); + &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); + &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); + &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); + &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); + &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); + &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); + &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); + &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); + &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); + &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); + &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); + &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); + &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); + &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); + &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); + &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); + &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); + &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); + &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); + &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); + &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); + &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); + &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); + &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); + &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); + &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); + &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); + &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); + &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); +&function_end_B("_x86_AES_decrypt"); + +# void AES_decrypt (const void *inp,void *out,const AES_KEY *key); +&function_begin("AES_decrypt"); + &mov ($acc,&wparam(0)); # load inp + &mov ($key,&wparam(2)); # load key + + &mov ($s0,"esp"); + &sub ("esp",36); + &and ("esp",-64); # align to cache-line + + # place stack frame just "above" the key schedule + &lea ($s1,&DWP(-64-63,$key)); + &sub ($s1,"esp"); + &neg ($s1); + &and ($s1,0x3C0); # modulo 1024, but aligned to cache-line + &sub ("esp",$s1); + &add ("esp",4); # 4 is reserved for caller's return address + &mov ($_esp,$s0); # save stack pointer + + &call (&label("pic_point")); # make it PIC! + &set_label("pic_point"); + &blindpop($tbl); + &picmeup($s0,"OPENSSL_ia32cap_P",$tbl,&label("pic_point")) if(!$x86only); + &lea ($tbl,&DWP(&label("AES_Td")."-".&label("pic_point"),$tbl)); + + # pick Td4 copy which can't "overlap" with stack frame or key schedule + &lea ($s1,&DWP(768-4,"esp")); + &sub ($s1,$tbl); + &and ($s1,0x300); + &lea ($tbl,&DWP(2048+128,$tbl,$s1)); + + if (!$x86only) { + &bt (&DWP(0,$s0),25); # check for SSE bit + &jnc (&label("x86")); + + &movq ("mm0",&QWP(0,$acc)); + &movq ("mm4",&QWP(8,$acc)); + &call ("_sse_AES_decrypt_compact"); + &mov ("esp",$_esp); # restore stack pointer + &mov ($acc,&wparam(1)); # load out + &movq (&QWP(0,$acc),"mm0"); # write output data + &movq (&QWP(8,$acc),"mm4"); + &emms (); + &function_end_A(); + } + &set_label("x86",16); + &mov ($_tbl,$tbl); + &mov ($s0,&DWP(0,$acc)); # load input data + &mov ($s1,&DWP(4,$acc)); + &mov ($s2,&DWP(8,$acc)); + &mov ($s3,&DWP(12,$acc)); + &call ("_x86_AES_decrypt_compact"); + &mov ("esp",$_esp); # restore stack pointer + &mov ($acc,&wparam(1)); # load out + &mov (&DWP(0,$acc),$s0); # write output data + &mov (&DWP(4,$acc),$s1); + &mov (&DWP(8,$acc),$s2); + &mov (&DWP(12,$acc),$s3); +&function_end("AES_decrypt"); + +# void AES_cbc_encrypt (const void char *inp, unsigned char *out, +# size_t length, const AES_KEY *key, +# unsigned char *ivp,const int enc); +{ +# stack frame layout +# -4(%esp) # return address 0(%esp) +# 0(%esp) # s0 backing store 4(%esp) +# 4(%esp) # s1 backing store 8(%esp) +# 8(%esp) # s2 backing store 12(%esp) +# 12(%esp) # s3 backing store 16(%esp) +# 16(%esp) # key backup 20(%esp) +# 20(%esp) # end of key schedule 24(%esp) +# 24(%esp) # %ebp backup 28(%esp) +# 28(%esp) # %esp backup +my $_inp=&DWP(32,"esp"); # copy of wparam(0) +my $_out=&DWP(36,"esp"); # copy of wparam(1) +my $_len=&DWP(40,"esp"); # copy of wparam(2) +my $_key=&DWP(44,"esp"); # copy of wparam(3) +my $_ivp=&DWP(48,"esp"); # copy of wparam(4) +my $_tmp=&DWP(52,"esp"); # volatile variable +# +my $ivec=&DWP(60,"esp"); # ivec[16] +my $aes_key=&DWP(76,"esp"); # copy of aes_key +my $mark=&DWP(76+240,"esp"); # copy of aes_key->rounds + +&function_begin("AES_cbc_encrypt"); + &mov ($s2 eq "ecx"? $s2 : "",&wparam(2)); # load len + &cmp ($s2,0); + &je (&label("drop_out")); + + &call (&label("pic_point")); # make it PIC! + &set_label("pic_point"); + &blindpop($tbl); + &picmeup($s0,"OPENSSL_ia32cap_P",$tbl,&label("pic_point")) if(!$x86only); + + &cmp (&wparam(5),0); + &lea ($tbl,&DWP(&label("AES_Te")."-".&label("pic_point"),$tbl)); + &jne (&label("picked_te")); + &lea ($tbl,&DWP(&label("AES_Td")."-".&label("AES_Te"),$tbl)); + &set_label("picked_te"); + + # one can argue if this is required + &pushf (); + &cld (); + + &cmp ($s2,$speed_limit); + &jb (&label("slow_way")); + &test ($s2,15); + &jnz (&label("slow_way")); + if (!$x86only) { + &bt (&DWP(0,$s0),28); # check for hyper-threading bit + &jc (&label("slow_way")); + } + # pre-allocate aligned stack frame... + &lea ($acc,&DWP(-80-244,"esp")); + &and ($acc,-64); + + # ... and make sure it doesn't alias with $tbl modulo 4096 + &mov ($s0,$tbl); + &lea ($s1,&DWP(2048+256,$tbl)); + &mov ($s3,$acc); + &and ($s0,0xfff); # s = %ebp&0xfff + &and ($s1,0xfff); # e = (%ebp+2048+256)&0xfff + &and ($s3,0xfff); # p = %esp&0xfff + + &cmp ($s3,$s1); # if (p>=e) %esp =- (p-e); + &jb (&label("tbl_break_out")); + &sub ($s3,$s1); + &sub ($acc,$s3); + &jmp (&label("tbl_ok")); + &set_label("tbl_break_out",4); # else %esp -= (p-s)&0xfff + framesz; + &sub ($s3,$s0); + &and ($s3,0xfff); + &add ($s3,384); + &sub ($acc,$s3); + &set_label("tbl_ok",4); + + &lea ($s3,&wparam(0)); # obtain pointer to parameter block + &exch ("esp",$acc); # allocate stack frame + &add ("esp",4); # reserve for return address! + &mov ($_tbl,$tbl); # save %ebp + &mov ($_esp,$acc); # save %esp + + &mov ($s0,&DWP(0,$s3)); # load inp + &mov ($s1,&DWP(4,$s3)); # load out + #&mov ($s2,&DWP(8,$s3)); # load len + &mov ($key,&DWP(12,$s3)); # load key + &mov ($acc,&DWP(16,$s3)); # load ivp + &mov ($s3,&DWP(20,$s3)); # load enc flag + + &mov ($_inp,$s0); # save copy of inp + &mov ($_out,$s1); # save copy of out + &mov ($_len,$s2); # save copy of len + &mov ($_key,$key); # save copy of key + &mov ($_ivp,$acc); # save copy of ivp + + &mov ($mark,0); # copy of aes_key->rounds = 0; + # do we copy key schedule to stack? + &mov ($s1 eq "ebx" ? $s1 : "",$key); + &mov ($s2 eq "ecx" ? $s2 : "",244/4); + &sub ($s1,$tbl); + &mov ("esi",$key); + &and ($s1,0xfff); + &lea ("edi",$aes_key); + &cmp ($s1,2048+256); + &jb (&label("do_copy")); + &cmp ($s1,4096-244); + &jb (&label("skip_copy")); + &set_label("do_copy",4); + &mov ($_key,"edi"); + &data_word(0xA5F3F689); # rep movsd + &set_label("skip_copy"); + + &mov ($key,16); + &set_label("prefetch_tbl",4); + &mov ($s0,&DWP(0,$tbl)); + &mov ($s1,&DWP(32,$tbl)); + &mov ($s2,&DWP(64,$tbl)); + &mov ($acc,&DWP(96,$tbl)); + &lea ($tbl,&DWP(128,$tbl)); + &sub ($key,1); + &jnz (&label("prefetch_tbl")); + &sub ($tbl,2048); + + &mov ($acc,$_inp); + &mov ($key,$_ivp); + + &cmp ($s3,0); + &je (&label("fast_decrypt")); + +#----------------------------- ENCRYPT -----------------------------# + &mov ($s0,&DWP(0,$key)); # load iv + &mov ($s1,&DWP(4,$key)); + + &set_label("fast_enc_loop",16); + &mov ($s2,&DWP(8,$key)); + &mov ($s3,&DWP(12,$key)); + + &xor ($s0,&DWP(0,$acc)); # xor input data + &xor ($s1,&DWP(4,$acc)); + &xor ($s2,&DWP(8,$acc)); + &xor ($s3,&DWP(12,$acc)); + + &mov ($key,$_key); # load key + &call ("_x86_AES_encrypt"); + + &mov ($acc,$_inp); # load inp + &mov ($key,$_out); # load out + + &mov (&DWP(0,$key),$s0); # save output data + &mov (&DWP(4,$key),$s1); + &mov (&DWP(8,$key),$s2); + &mov (&DWP(12,$key),$s3); + + &lea ($acc,&DWP(16,$acc)); # advance inp + &mov ($s2,$_len); # load len + &mov ($_inp,$acc); # save inp + &lea ($s3,&DWP(16,$key)); # advance out + &mov ($_out,$s3); # save out + &sub ($s2,16); # decrease len + &mov ($_len,$s2); # save len + &jnz (&label("fast_enc_loop")); + &mov ($acc,$_ivp); # load ivp + &mov ($s2,&DWP(8,$key)); # restore last 2 dwords + &mov ($s3,&DWP(12,$key)); + &mov (&DWP(0,$acc),$s0); # save ivec + &mov (&DWP(4,$acc),$s1); + &mov (&DWP(8,$acc),$s2); + &mov (&DWP(12,$acc),$s3); + + &cmp ($mark,0); # was the key schedule copied? + &mov ("edi",$_key); + &je (&label("skip_ezero")); + # zero copy of key schedule + &mov ("ecx",240/4); + &xor ("eax","eax"); + &align (4); + &data_word(0xABF3F689); # rep stosd + &set_label("skip_ezero"); + &mov ("esp",$_esp); + &popf (); + &set_label("drop_out"); + &function_end_A(); + &pushf (); # kludge, never executed + +#----------------------------- DECRYPT -----------------------------# +&set_label("fast_decrypt",16); + + &cmp ($acc,$_out); + &je (&label("fast_dec_in_place")); # in-place processing... + + &mov ($_tmp,$key); + + &align (4); + &set_label("fast_dec_loop",16); + &mov ($s0,&DWP(0,$acc)); # read input + &mov ($s1,&DWP(4,$acc)); + &mov ($s2,&DWP(8,$acc)); + &mov ($s3,&DWP(12,$acc)); + + &mov ($key,$_key); # load key + &call ("_x86_AES_decrypt"); + + &mov ($key,$_tmp); # load ivp + &mov ($acc,$_len); # load len + &xor ($s0,&DWP(0,$key)); # xor iv + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &mov ($key,$_out); # load out + &mov ($acc,$_inp); # load inp + + &mov (&DWP(0,$key),$s0); # write output + &mov (&DWP(4,$key),$s1); + &mov (&DWP(8,$key),$s2); + &mov (&DWP(12,$key),$s3); + + &mov ($s2,$_len); # load len + &mov ($_tmp,$acc); # save ivp + &lea ($acc,&DWP(16,$acc)); # advance inp + &mov ($_inp,$acc); # save inp + &lea ($key,&DWP(16,$key)); # advance out + &mov ($_out,$key); # save out + &sub ($s2,16); # decrease len + &mov ($_len,$s2); # save len + &jnz (&label("fast_dec_loop")); + &mov ($key,$_tmp); # load temp ivp + &mov ($acc,$_ivp); # load user ivp + &mov ($s0,&DWP(0,$key)); # load iv + &mov ($s1,&DWP(4,$key)); + &mov ($s2,&DWP(8,$key)); + &mov ($s3,&DWP(12,$key)); + &mov (&DWP(0,$acc),$s0); # copy back to user + &mov (&DWP(4,$acc),$s1); + &mov (&DWP(8,$acc),$s2); + &mov (&DWP(12,$acc),$s3); + &jmp (&label("fast_dec_out")); + + &set_label("fast_dec_in_place",16); + &set_label("fast_dec_in_place_loop"); + &mov ($s0,&DWP(0,$acc)); # read input + &mov ($s1,&DWP(4,$acc)); + &mov ($s2,&DWP(8,$acc)); + &mov ($s3,&DWP(12,$acc)); + + &lea ($key,$ivec); + &mov (&DWP(0,$key),$s0); # copy to temp + &mov (&DWP(4,$key),$s1); + &mov (&DWP(8,$key),$s2); + &mov (&DWP(12,$key),$s3); + + &mov ($key,$_key); # load key + &call ("_x86_AES_decrypt"); + + &mov ($key,$_ivp); # load ivp + &mov ($acc,$_out); # load out + &xor ($s0,&DWP(0,$key)); # xor iv + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &mov (&DWP(0,$acc),$s0); # write output + &mov (&DWP(4,$acc),$s1); + &mov (&DWP(8,$acc),$s2); + &mov (&DWP(12,$acc),$s3); + + &lea ($acc,&DWP(16,$acc)); # advance out + &mov ($_out,$acc); # save out + + &lea ($acc,$ivec); + &mov ($s0,&DWP(0,$acc)); # read temp + &mov ($s1,&DWP(4,$acc)); + &mov ($s2,&DWP(8,$acc)); + &mov ($s3,&DWP(12,$acc)); + + &mov (&DWP(0,$key),$s0); # copy iv + &mov (&DWP(4,$key),$s1); + &mov (&DWP(8,$key),$s2); + &mov (&DWP(12,$key),$s3); + + &mov ($acc,$_inp); # load inp + &mov ($s2,$_len); # load len + &lea ($acc,&DWP(16,$acc)); # advance inp + &mov ($_inp,$acc); # save inp + &sub ($s2,16); # decrease len + &mov ($_len,$s2); # save len + &jnz (&label("fast_dec_in_place_loop")); + + &set_label("fast_dec_out",4); + &cmp ($mark,0); # was the key schedule copied? + &mov ("edi",$_key); + &je (&label("skip_dzero")); + # zero copy of key schedule + &mov ("ecx",240/4); + &xor ("eax","eax"); + &align (4); + &data_word(0xABF3F689); # rep stosd + &set_label("skip_dzero"); + &mov ("esp",$_esp); + &popf (); + &function_end_A(); + &pushf (); # kludge, never executed + +#--------------------------- SLOW ROUTINE ---------------------------# +&set_label("slow_way",16); + + &mov ($s0,&DWP(0,$s0)) if (!$x86only);# load OPENSSL_ia32cap + &mov ($key,&wparam(3)); # load key + + # pre-allocate aligned stack frame... + &lea ($acc,&DWP(-80,"esp")); + &and ($acc,-64); + + # ... and make sure it doesn't alias with $key modulo 1024 + &lea ($s1,&DWP(-80-63,$key)); + &sub ($s1,$acc); + &neg ($s1); + &and ($s1,0x3C0); # modulo 1024, but aligned to cache-line + &sub ($acc,$s1); + + # pick S-box copy which can't overlap with stack frame or $key + &lea ($s1,&DWP(768,$acc)); + &sub ($s1,$tbl); + &and ($s1,0x300); + &lea ($tbl,&DWP(2048+128,$tbl,$s1)); + + &lea ($s3,&wparam(0)); # pointer to parameter block + + &exch ("esp",$acc); + &add ("esp",4); # reserve for return address! + &mov ($_tbl,$tbl); # save %ebp + &mov ($_esp,$acc); # save %esp + &mov ($_tmp,$s0); # save OPENSSL_ia32cap + + &mov ($s0,&DWP(0,$s3)); # load inp + &mov ($s1,&DWP(4,$s3)); # load out + #&mov ($s2,&DWP(8,$s3)); # load len + #&mov ($key,&DWP(12,$s3)); # load key + &mov ($acc,&DWP(16,$s3)); # load ivp + &mov ($s3,&DWP(20,$s3)); # load enc flag + + &mov ($_inp,$s0); # save copy of inp + &mov ($_out,$s1); # save copy of out + &mov ($_len,$s2); # save copy of len + &mov ($_key,$key); # save copy of key + &mov ($_ivp,$acc); # save copy of ivp + + &mov ($key,$acc); + &mov ($acc,$s0); + + &cmp ($s3,0); + &je (&label("slow_decrypt")); + +#--------------------------- SLOW ENCRYPT ---------------------------# + &cmp ($s2,16); + &mov ($s3,$s1); + &jb (&label("slow_enc_tail")); + + if (!$x86only) { + &bt ($_tmp,25); # check for SSE bit + &jnc (&label("slow_enc_x86")); + + &movq ("mm0",&QWP(0,$key)); # load iv + &movq ("mm4",&QWP(8,$key)); + + &set_label("slow_enc_loop_sse",16); + &pxor ("mm0",&QWP(0,$acc)); # xor input data + &pxor ("mm4",&QWP(8,$acc)); + + &mov ($key,$_key); + &call ("_sse_AES_encrypt_compact"); + + &mov ($acc,$_inp); # load inp + &mov ($key,$_out); # load out + &mov ($s2,$_len); # load len + + &movq (&QWP(0,$key),"mm0"); # save output data + &movq (&QWP(8,$key),"mm4"); + + &lea ($acc,&DWP(16,$acc)); # advance inp + &mov ($_inp,$acc); # save inp + &lea ($s3,&DWP(16,$key)); # advance out + &mov ($_out,$s3); # save out + &sub ($s2,16); # decrease len + &cmp ($s2,16); + &mov ($_len,$s2); # save len + &jae (&label("slow_enc_loop_sse")); + &test ($s2,15); + &jnz (&label("slow_enc_tail")); + &mov ($acc,$_ivp); # load ivp + &movq (&QWP(0,$acc),"mm0"); # save ivec + &movq (&QWP(8,$acc),"mm4"); + &emms (); + &mov ("esp",$_esp); + &popf (); + &function_end_A(); + &pushf (); # kludge, never executed + } + &set_label("slow_enc_x86",16); + &mov ($s0,&DWP(0,$key)); # load iv + &mov ($s1,&DWP(4,$key)); + + &set_label("slow_enc_loop_x86",4); + &mov ($s2,&DWP(8,$key)); + &mov ($s3,&DWP(12,$key)); + + &xor ($s0,&DWP(0,$acc)); # xor input data + &xor ($s1,&DWP(4,$acc)); + &xor ($s2,&DWP(8,$acc)); + &xor ($s3,&DWP(12,$acc)); + + &mov ($key,$_key); # load key + &call ("_x86_AES_encrypt_compact"); + + &mov ($acc,$_inp); # load inp + &mov ($key,$_out); # load out + + &mov (&DWP(0,$key),$s0); # save output data + &mov (&DWP(4,$key),$s1); + &mov (&DWP(8,$key),$s2); + &mov (&DWP(12,$key),$s3); + + &mov ($s2,$_len); # load len + &lea ($acc,&DWP(16,$acc)); # advance inp + &mov ($_inp,$acc); # save inp + &lea ($s3,&DWP(16,$key)); # advance out + &mov ($_out,$s3); # save out + &sub ($s2,16); # decrease len + &cmp ($s2,16); + &mov ($_len,$s2); # save len + &jae (&label("slow_enc_loop_x86")); + &test ($s2,15); + &jnz (&label("slow_enc_tail")); + &mov ($acc,$_ivp); # load ivp + &mov ($s2,&DWP(8,$key)); # restore last dwords + &mov ($s3,&DWP(12,$key)); + &mov (&DWP(0,$acc),$s0); # save ivec + &mov (&DWP(4,$acc),$s1); + &mov (&DWP(8,$acc),$s2); + &mov (&DWP(12,$acc),$s3); + + &mov ("esp",$_esp); + &popf (); + &function_end_A(); + &pushf (); # kludge, never executed + + &set_label("slow_enc_tail",16); + &emms () if (!$x86only); + &mov ($key eq "edi"? $key:"",$s3); # load out to edi + &mov ($s1,16); + &sub ($s1,$s2); + &cmp ($key,$acc eq "esi"? $acc:""); # compare with inp + &je (&label("enc_in_place")); + &align (4); + &data_word(0xA4F3F689); # rep movsb # copy input + &jmp (&label("enc_skip_in_place")); + &set_label("enc_in_place"); + &lea ($key,&DWP(0,$key,$s2)); + &set_label("enc_skip_in_place"); + &mov ($s2,$s1); + &xor ($s0,$s0); + &align (4); + &data_word(0xAAF3F689); # rep stosb # zero tail + + &mov ($key,$_ivp); # restore ivp + &mov ($acc,$s3); # output as input + &mov ($s0,&DWP(0,$key)); + &mov ($s1,&DWP(4,$key)); + &mov ($_len,16); # len=16 + &jmp (&label("slow_enc_loop_x86")); # one more spin... + +#--------------------------- SLOW DECRYPT ---------------------------# +&set_label("slow_decrypt",16); + if (!$x86only) { + &bt ($_tmp,25); # check for SSE bit + &jnc (&label("slow_dec_loop_x86")); + + &set_label("slow_dec_loop_sse",4); + &movq ("mm0",&QWP(0,$acc)); # read input + &movq ("mm4",&QWP(8,$acc)); + + &mov ($key,$_key); + &call ("_sse_AES_decrypt_compact"); + + &mov ($acc,$_inp); # load inp + &lea ($s0,$ivec); + &mov ($s1,$_out); # load out + &mov ($s2,$_len); # load len + &mov ($key,$_ivp); # load ivp + + &movq ("mm1",&QWP(0,$acc)); # re-read input + &movq ("mm5",&QWP(8,$acc)); + + &pxor ("mm0",&QWP(0,$key)); # xor iv + &pxor ("mm4",&QWP(8,$key)); + + &movq (&QWP(0,$key),"mm1"); # copy input to iv + &movq (&QWP(8,$key),"mm5"); + + &sub ($s2,16); # decrease len + &jc (&label("slow_dec_partial_sse")); + + &movq (&QWP(0,$s1),"mm0"); # write output + &movq (&QWP(8,$s1),"mm4"); + + &lea ($s1,&DWP(16,$s1)); # advance out + &mov ($_out,$s1); # save out + &lea ($acc,&DWP(16,$acc)); # advance inp + &mov ($_inp,$acc); # save inp + &mov ($_len,$s2); # save len + &jnz (&label("slow_dec_loop_sse")); + &emms (); + &mov ("esp",$_esp); + &popf (); + &function_end_A(); + &pushf (); # kludge, never executed + + &set_label("slow_dec_partial_sse",16); + &movq (&QWP(0,$s0),"mm0"); # save output to temp + &movq (&QWP(8,$s0),"mm4"); + &emms (); + + &add ($s2 eq "ecx" ? "ecx":"",16); + &mov ("edi",$s1); # out + &mov ("esi",$s0); # temp + &align (4); + &data_word(0xA4F3F689); # rep movsb # copy partial output + + &mov ("esp",$_esp); + &popf (); + &function_end_A(); + &pushf (); # kludge, never executed + } + &set_label("slow_dec_loop_x86",16); + &mov ($s0,&DWP(0,$acc)); # read input + &mov ($s1,&DWP(4,$acc)); + &mov ($s2,&DWP(8,$acc)); + &mov ($s3,&DWP(12,$acc)); + + &lea ($key,$ivec); + &mov (&DWP(0,$key),$s0); # copy to temp + &mov (&DWP(4,$key),$s1); + &mov (&DWP(8,$key),$s2); + &mov (&DWP(12,$key),$s3); + + &mov ($key,$_key); # load key + &call ("_x86_AES_decrypt_compact"); + + &mov ($key,$_ivp); # load ivp + &mov ($acc,$_len); # load len + &xor ($s0,&DWP(0,$key)); # xor iv + &xor ($s1,&DWP(4,$key)); + &xor ($s2,&DWP(8,$key)); + &xor ($s3,&DWP(12,$key)); + + &sub ($acc,16); + &jc (&label("slow_dec_partial_x86")); + + &mov ($_len,$acc); # save len + &mov ($acc,$_out); # load out + + &mov (&DWP(0,$acc),$s0); # write output + &mov (&DWP(4,$acc),$s1); + &mov (&DWP(8,$acc),$s2); + &mov (&DWP(12,$acc),$s3); + + &lea ($acc,&DWP(16,$acc)); # advance out + &mov ($_out,$acc); # save out + + &lea ($acc,$ivec); + &mov ($s0,&DWP(0,$acc)); # read temp + &mov ($s1,&DWP(4,$acc)); + &mov ($s2,&DWP(8,$acc)); + &mov ($s3,&DWP(12,$acc)); + + &mov (&DWP(0,$key),$s0); # copy it to iv + &mov (&DWP(4,$key),$s1); + &mov (&DWP(8,$key),$s2); + &mov (&DWP(12,$key),$s3); + + &mov ($acc,$_inp); # load inp + &lea ($acc,&DWP(16,$acc)); # advance inp + &mov ($_inp,$acc); # save inp + &jnz (&label("slow_dec_loop_x86")); + &mov ("esp",$_esp); + &popf (); + &function_end_A(); + &pushf (); # kludge, never executed + + &set_label("slow_dec_partial_x86",16); + &lea ($acc,$ivec); + &mov (&DWP(0,$acc),$s0); # save output to temp + &mov (&DWP(4,$acc),$s1); + &mov (&DWP(8,$acc),$s2); + &mov (&DWP(12,$acc),$s3); + + &mov ($acc,$_inp); + &mov ($s0,&DWP(0,$acc)); # re-read input + &mov ($s1,&DWP(4,$acc)); + &mov ($s2,&DWP(8,$acc)); + &mov ($s3,&DWP(12,$acc)); + + &mov (&DWP(0,$key),$s0); # copy it to iv + &mov (&DWP(4,$key),$s1); + &mov (&DWP(8,$key),$s2); + &mov (&DWP(12,$key),$s3); + + &mov ("ecx",$_len); + &mov ("edi",$_out); + &lea ("esi",$ivec); + &align (4); + &data_word(0xA4F3F689); # rep movsb # copy partial output + + &mov ("esp",$_esp); + &popf (); +&function_end("AES_cbc_encrypt"); +} + +#------------------------------------------------------------------# + +sub enckey() +{ + &movz ("esi",&LB("edx")); # rk[i]>>0 + &movz ("ebx",&BP(-128,$tbl,"esi",1)); + &movz ("esi",&HB("edx")); # rk[i]>>8 + &shl ("ebx",24); + &xor ("eax","ebx"); + + &movz ("ebx",&BP(-128,$tbl,"esi",1)); + &shr ("edx",16); + &movz ("esi",&LB("edx")); # rk[i]>>16 + &xor ("eax","ebx"); + + &movz ("ebx",&BP(-128,$tbl,"esi",1)); + &movz ("esi",&HB("edx")); # rk[i]>>24 + &shl ("ebx",8); + &xor ("eax","ebx"); + + &movz ("ebx",&BP(-128,$tbl,"esi",1)); + &shl ("ebx",16); + &xor ("eax","ebx"); + + &xor ("eax",&DWP(1024-128,$tbl,"ecx",4)); # rcon +} + +&function_begin("_x86_AES_set_encrypt_key"); + &mov ("esi",&wparam(1)); # user supplied key + &mov ("edi",&wparam(3)); # private key schedule + + &test ("esi",-1); + &jz (&label("badpointer")); + &test ("edi",-1); + &jz (&label("badpointer")); + + &call (&label("pic_point")); + &set_label("pic_point"); + &blindpop($tbl); + &lea ($tbl,&DWP(&label("AES_Te")."-".&label("pic_point"),$tbl)); + &lea ($tbl,&DWP(2048+128,$tbl)); + + # prefetch Te4 + &mov ("eax",&DWP(0-128,$tbl)); + &mov ("ebx",&DWP(32-128,$tbl)); + &mov ("ecx",&DWP(64-128,$tbl)); + &mov ("edx",&DWP(96-128,$tbl)); + &mov ("eax",&DWP(128-128,$tbl)); + &mov ("ebx",&DWP(160-128,$tbl)); + &mov ("ecx",&DWP(192-128,$tbl)); + &mov ("edx",&DWP(224-128,$tbl)); + + &mov ("ecx",&wparam(2)); # number of bits in key + &cmp ("ecx",128); + &je (&label("10rounds")); + &cmp ("ecx",192); + &je (&label("12rounds")); + &cmp ("ecx",256); + &je (&label("14rounds")); + &mov ("eax",-2); # invalid number of bits + &jmp (&label("exit")); + + &set_label("10rounds"); + &mov ("eax",&DWP(0,"esi")); # copy first 4 dwords + &mov ("ebx",&DWP(4,"esi")); + &mov ("ecx",&DWP(8,"esi")); + &mov ("edx",&DWP(12,"esi")); + &mov (&DWP(0,"edi"),"eax"); + &mov (&DWP(4,"edi"),"ebx"); + &mov (&DWP(8,"edi"),"ecx"); + &mov (&DWP(12,"edi"),"edx"); + + &xor ("ecx","ecx"); + &jmp (&label("10shortcut")); + + &align (4); + &set_label("10loop"); + &mov ("eax",&DWP(0,"edi")); # rk[0] + &mov ("edx",&DWP(12,"edi")); # rk[3] + &set_label("10shortcut"); + &enckey (); + + &mov (&DWP(16,"edi"),"eax"); # rk[4] + &xor ("eax",&DWP(4,"edi")); + &mov (&DWP(20,"edi"),"eax"); # rk[5] + &xor ("eax",&DWP(8,"edi")); + &mov (&DWP(24,"edi"),"eax"); # rk[6] + &xor ("eax",&DWP(12,"edi")); + &mov (&DWP(28,"edi"),"eax"); # rk[7] + &inc ("ecx"); + &add ("edi",16); + &cmp ("ecx",10); + &jl (&label("10loop")); + + &mov (&DWP(80,"edi"),10); # setup number of rounds + &xor ("eax","eax"); + &jmp (&label("exit")); + + &set_label("12rounds"); + &mov ("eax",&DWP(0,"esi")); # copy first 6 dwords + &mov ("ebx",&DWP(4,"esi")); + &mov ("ecx",&DWP(8,"esi")); + &mov ("edx",&DWP(12,"esi")); + &mov (&DWP(0,"edi"),"eax"); + &mov (&DWP(4,"edi"),"ebx"); + &mov (&DWP(8,"edi"),"ecx"); + &mov (&DWP(12,"edi"),"edx"); + &mov ("ecx",&DWP(16,"esi")); + &mov ("edx",&DWP(20,"esi")); + &mov (&DWP(16,"edi"),"ecx"); + &mov (&DWP(20,"edi"),"edx"); + + &xor ("ecx","ecx"); + &jmp (&label("12shortcut")); + + &align (4); + &set_label("12loop"); + &mov ("eax",&DWP(0,"edi")); # rk[0] + &mov ("edx",&DWP(20,"edi")); # rk[5] + &set_label("12shortcut"); + &enckey (); + + &mov (&DWP(24,"edi"),"eax"); # rk[6] + &xor ("eax",&DWP(4,"edi")); + &mov (&DWP(28,"edi"),"eax"); # rk[7] + &xor ("eax",&DWP(8,"edi")); + &mov (&DWP(32,"edi"),"eax"); # rk[8] + &xor ("eax",&DWP(12,"edi")); + &mov (&DWP(36,"edi"),"eax"); # rk[9] + + &cmp ("ecx",7); + &je (&label("12break")); + &inc ("ecx"); + + &xor ("eax",&DWP(16,"edi")); + &mov (&DWP(40,"edi"),"eax"); # rk[10] + &xor ("eax",&DWP(20,"edi")); + &mov (&DWP(44,"edi"),"eax"); # rk[11] + + &add ("edi",24); + &jmp (&label("12loop")); + + &set_label("12break"); + &mov (&DWP(72,"edi"),12); # setup number of rounds + &xor ("eax","eax"); + &jmp (&label("exit")); + + &set_label("14rounds"); + &mov ("eax",&DWP(0,"esi")); # copy first 8 dwords + &mov ("ebx",&DWP(4,"esi")); + &mov ("ecx",&DWP(8,"esi")); + &mov ("edx",&DWP(12,"esi")); + &mov (&DWP(0,"edi"),"eax"); + &mov (&DWP(4,"edi"),"ebx"); + &mov (&DWP(8,"edi"),"ecx"); + &mov (&DWP(12,"edi"),"edx"); + &mov ("eax",&DWP(16,"esi")); + &mov ("ebx",&DWP(20,"esi")); + &mov ("ecx",&DWP(24,"esi")); + &mov ("edx",&DWP(28,"esi")); + &mov (&DWP(16,"edi"),"eax"); + &mov (&DWP(20,"edi"),"ebx"); + &mov (&DWP(24,"edi"),"ecx"); + &mov (&DWP(28,"edi"),"edx"); + + &xor ("ecx","ecx"); + &jmp (&label("14shortcut")); + + &align (4); + &set_label("14loop"); + &mov ("edx",&DWP(28,"edi")); # rk[7] + &set_label("14shortcut"); + &mov ("eax",&DWP(0,"edi")); # rk[0] + + &enckey (); + + &mov (&DWP(32,"edi"),"eax"); # rk[8] + &xor ("eax",&DWP(4,"edi")); + &mov (&DWP(36,"edi"),"eax"); # rk[9] + &xor ("eax",&DWP(8,"edi")); + &mov (&DWP(40,"edi"),"eax"); # rk[10] + &xor ("eax",&DWP(12,"edi")); + &mov (&DWP(44,"edi"),"eax"); # rk[11] + + &cmp ("ecx",6); + &je (&label("14break")); + &inc ("ecx"); + + &mov ("edx","eax"); + &mov ("eax",&DWP(16,"edi")); # rk[4] + &movz ("esi",&LB("edx")); # rk[11]>>0 + &movz ("ebx",&BP(-128,$tbl,"esi",1)); + &movz ("esi",&HB("edx")); # rk[11]>>8 + &xor ("eax","ebx"); + + &movz ("ebx",&BP(-128,$tbl,"esi",1)); + &shr ("edx",16); + &shl ("ebx",8); + &movz ("esi",&LB("edx")); # rk[11]>>16 + &xor ("eax","ebx"); + + &movz ("ebx",&BP(-128,$tbl,"esi",1)); + &movz ("esi",&HB("edx")); # rk[11]>>24 + &shl ("ebx",16); + &xor ("eax","ebx"); + + &movz ("ebx",&BP(-128,$tbl,"esi",1)); + &shl ("ebx",24); + &xor ("eax","ebx"); + + &mov (&DWP(48,"edi"),"eax"); # rk[12] + &xor ("eax",&DWP(20,"edi")); + &mov (&DWP(52,"edi"),"eax"); # rk[13] + &xor ("eax",&DWP(24,"edi")); + &mov (&DWP(56,"edi"),"eax"); # rk[14] + &xor ("eax",&DWP(28,"edi")); + &mov (&DWP(60,"edi"),"eax"); # rk[15] + + &add ("edi",32); + &jmp (&label("14loop")); + + &set_label("14break"); + &mov (&DWP(48,"edi"),14); # setup number of rounds + &xor ("eax","eax"); + &jmp (&label("exit")); + + &set_label("badpointer"); + &mov ("eax",-1); + &set_label("exit"); +&function_end("_x86_AES_set_encrypt_key"); + +# int AES_set_encrypt_key(const unsigned char *userKey, const int bits, +# AES_KEY *key) +&function_begin_B("AES_set_encrypt_key"); + &call ("_x86_AES_set_encrypt_key"); + &ret (); +&function_end_B("AES_set_encrypt_key"); + +sub deckey() +{ my ($i,$key,$tp1,$tp2,$tp4,$tp8) = @_; + my $tmp = $tbl; + + &mov ($tmp,0x80808080); + &and ($tmp,$tp1); + &lea ($tp2,&DWP(0,$tp1,$tp1)); + &mov ($acc,$tmp); + &shr ($tmp,7); + &sub ($acc,$tmp); + &and ($tp2,0xfefefefe); + &and ($acc,0x1b1b1b1b); + &xor ($tp2,$acc); + &mov ($tmp,0x80808080); + + &and ($tmp,$tp2); + &lea ($tp4,&DWP(0,$tp2,$tp2)); + &mov ($acc,$tmp); + &shr ($tmp,7); + &sub ($acc,$tmp); + &and ($tp4,0xfefefefe); + &and ($acc,0x1b1b1b1b); + &xor ($tp2,$tp1); # tp2^tp1 + &xor ($tp4,$acc); + &mov ($tmp,0x80808080); + + &and ($tmp,$tp4); + &lea ($tp8,&DWP(0,$tp4,$tp4)); + &mov ($acc,$tmp); + &shr ($tmp,7); + &xor ($tp4,$tp1); # tp4^tp1 + &sub ($acc,$tmp); + &and ($tp8,0xfefefefe); + &and ($acc,0x1b1b1b1b); + &rotl ($tp1,8); # = ROTATE(tp1,8) + &xor ($tp8,$acc); + + &mov ($tmp,&DWP(4*($i+1),$key)); # modulo-scheduled load + + &xor ($tp1,$tp2); + &xor ($tp2,$tp8); + &xor ($tp1,$tp4); + &rotl ($tp2,24); + &xor ($tp4,$tp8); + &xor ($tp1,$tp8); # ^= tp8^(tp4^tp1)^(tp2^tp1) + &rotl ($tp4,16); + &xor ($tp1,$tp2); # ^= ROTATE(tp8^tp2^tp1,24) + &rotl ($tp8,8); + &xor ($tp1,$tp4); # ^= ROTATE(tp8^tp4^tp1,16) + &mov ($tp2,$tmp); + &xor ($tp1,$tp8); # ^= ROTATE(tp8,8) + + &mov (&DWP(4*$i,$key),$tp1); +} + +# int AES_set_decrypt_key(const unsigned char *userKey, const int bits, +# AES_KEY *key) +&function_begin_B("AES_set_decrypt_key"); + &call ("_x86_AES_set_encrypt_key"); + &cmp ("eax",0); + &je (&label("proceed")); + &ret (); + + &set_label("proceed"); + &push ("ebp"); + &push ("ebx"); + &push ("esi"); + &push ("edi"); + + &mov ("esi",&wparam(2)); + &mov ("ecx",&DWP(240,"esi")); # pull number of rounds + &lea ("ecx",&DWP(0,"","ecx",4)); + &lea ("edi",&DWP(0,"esi","ecx",4)); # pointer to last chunk + + &set_label("invert",4); # invert order of chunks + &mov ("eax",&DWP(0,"esi")); + &mov ("ebx",&DWP(4,"esi")); + &mov ("ecx",&DWP(0,"edi")); + &mov ("edx",&DWP(4,"edi")); + &mov (&DWP(0,"edi"),"eax"); + &mov (&DWP(4,"edi"),"ebx"); + &mov (&DWP(0,"esi"),"ecx"); + &mov (&DWP(4,"esi"),"edx"); + &mov ("eax",&DWP(8,"esi")); + &mov ("ebx",&DWP(12,"esi")); + &mov ("ecx",&DWP(8,"edi")); + &mov ("edx",&DWP(12,"edi")); + &mov (&DWP(8,"edi"),"eax"); + &mov (&DWP(12,"edi"),"ebx"); + &mov (&DWP(8,"esi"),"ecx"); + &mov (&DWP(12,"esi"),"edx"); + &add ("esi",16); + &sub ("edi",16); + &cmp ("esi","edi"); + &jne (&label("invert")); + + &mov ($key,&wparam(2)); + &mov ($acc,&DWP(240,$key)); # pull number of rounds + &lea ($acc,&DWP(-2,$acc,$acc)); + &lea ($acc,&DWP(0,$key,$acc,8)); + &mov (&wparam(2),$acc); + + &mov ($s0,&DWP(16,$key)); # modulo-scheduled load + &set_label("permute",4); # permute the key schedule + &add ($key,16); + &deckey (0,$key,$s0,$s1,$s2,$s3); + &deckey (1,$key,$s1,$s2,$s3,$s0); + &deckey (2,$key,$s2,$s3,$s0,$s1); + &deckey (3,$key,$s3,$s0,$s1,$s2); + &cmp ($key,&wparam(2)); + &jb (&label("permute")); + + &xor ("eax","eax"); # return success +&function_end("AES_set_decrypt_key"); +&asciz("AES for x86, CRYPTOGAMS by <appro\@openssl.org>"); + +&asm_finish(); diff --git a/crypto/aes/asm/aes-armv4.pl b/crypto/aes/asm/aes-armv4.pl new file mode 100644 index 00000000..38a3f6aa --- /dev/null +++ b/crypto/aes/asm/aes-armv4.pl @@ -0,0 +1,1219 @@ +#!/usr/bin/env perl + +# ==================================================================== +# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== + +# AES for ARMv4 + +# January 2007. +# +# Code uses single 1K S-box and is >2 times faster than code generated +# by gcc-3.4.1. This is thanks to unique feature of ARMv4 ISA, which +# allows to merge logical or arithmetic operation with shift or rotate +# in one instruction and emit combined result every cycle. The module +# is endian-neutral. The performance is ~42 cycles/byte for 128-bit +# key [on single-issue Xscale PXA250 core]. + +# May 2007. +# +# AES_set_[en|de]crypt_key is added. + +# July 2010. +# +# Rescheduling for dual-issue pipeline resulted in 12% improvement on +# Cortex A8 core and ~25 cycles per byte processed with 128-bit key. + +# February 2011. +# +# Profiler-assisted and platform-specific optimization resulted in 16% +# improvement on Cortex A8 core and ~21.5 cycles per byte. + +while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} +open STDOUT,">$output"; + +$s0="r0"; +$s1="r1"; +$s2="r2"; +$s3="r3"; +$t1="r4"; +$t2="r5"; +$t3="r6"; +$i1="r7"; +$i2="r8"; +$i3="r9"; + +$tbl="r10"; +$key="r11"; +$rounds="r12"; + +$code=<<___; +#if defined(__arm__) +#ifndef __KERNEL__ +# include "arm_arch.h" +#else +# define __ARM_ARCH__ __LINUX_ARM_ARCH__ +#endif + +.text +#if __ARM_ARCH__<7 +.code 32 +#else +.syntax unified +# ifdef __thumb2__ +.thumb +# else +.code 32 +# endif +#endif + +.type AES_Te,%object +.align 5 +AES_Te: +.word 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d +.word 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554 +.word 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d +.word 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a +.word 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87 +.word 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b +.word 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea +.word 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b +.word 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a +.word 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f +.word 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108 +.word 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f +.word 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e +.word 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5 +.word 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d +.word 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f +.word 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e +.word 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb +.word 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce +.word 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497 +.word 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c +.word 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed +.word 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b +.word 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a +.word 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16 +.word 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594 +.word 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81 +.word 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3 +.word 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a +.word 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504 +.word 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163 +.word 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d +.word 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f +.word 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739 +.word 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47 +.word 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395 +.word 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f +.word 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883 +.word 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c +.word 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76 +.word 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e +.word 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4 +.word 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6 +.word 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b +.word 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7 +.word 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0 +.word 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25 +.word 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818 +.word 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72 +.word 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651 +.word 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21 +.word 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85 +.word 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa +.word 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12 +.word 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0 +.word 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9 +.word 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133 +.word 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7 +.word 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920 +.word 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a +.word 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17 +.word 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8 +.word 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11 +.word 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a +@ Te4[256] +.byte 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5 +.byte 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76 +.byte 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0 +.byte 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0 +.byte 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc +.byte 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15 +.byte 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a +.byte 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75 +.byte 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0 +.byte 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84 +.byte 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b +.byte 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf +.byte 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85 +.byte 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8 +.byte 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5 +.byte 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2 +.byte 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17 +.byte 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73 +.byte 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88 +.byte 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb +.byte 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c +.byte 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79 +.byte 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9 +.byte 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08 +.byte 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6 +.byte 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a +.byte 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e +.byte 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e +.byte 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94 +.byte 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf +.byte 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68 +.byte 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 +@ rcon[] +.word 0x01000000, 0x02000000, 0x04000000, 0x08000000 +.word 0x10000000, 0x20000000, 0x40000000, 0x80000000 +.word 0x1B000000, 0x36000000, 0, 0, 0, 0, 0, 0 +.size AES_Te,.-AES_Te + +@ void AES_encrypt(const unsigned char *in, unsigned char *out, +@ const AES_KEY *key) { +.global AES_encrypt +.type AES_encrypt,%function +.align 5 +AES_encrypt: +#if __ARM_ARCH__<7 + sub r3,pc,#8 @ AES_encrypt +#else + adr r3,AES_encrypt +#endif + stmdb sp!,{r1,r4-r12,lr} + mov $rounds,r0 @ inp + mov $key,r2 + sub $tbl,r3,#AES_encrypt-AES_Te @ Te +#if __ARM_ARCH__<7 + ldrb $s0,[$rounds,#3] @ load input data in endian-neutral + ldrb $t1,[$rounds,#2] @ manner... + ldrb $t2,[$rounds,#1] + ldrb $t3,[$rounds,#0] + orr $s0,$s0,$t1,lsl#8 + ldrb $s1,[$rounds,#7] + orr $s0,$s0,$t2,lsl#16 + ldrb $t1,[$rounds,#6] + orr $s0,$s0,$t3,lsl#24 + ldrb $t2,[$rounds,#5] + ldrb $t3,[$rounds,#4] + orr $s1,$s1,$t1,lsl#8 + ldrb $s2,[$rounds,#11] + orr $s1,$s1,$t2,lsl#16 + ldrb $t1,[$rounds,#10] + orr $s1,$s1,$t3,lsl#24 + ldrb $t2,[$rounds,#9] + ldrb $t3,[$rounds,#8] + orr $s2,$s2,$t1,lsl#8 + ldrb $s3,[$rounds,#15] + orr $s2,$s2,$t2,lsl#16 + ldrb $t1,[$rounds,#14] + orr $s2,$s2,$t3,lsl#24 + ldrb $t2,[$rounds,#13] + ldrb $t3,[$rounds,#12] + orr $s3,$s3,$t1,lsl#8 + orr $s3,$s3,$t2,lsl#16 + orr $s3,$s3,$t3,lsl#24 +#else + ldr $s0,[$rounds,#0] + ldr $s1,[$rounds,#4] + ldr $s2,[$rounds,#8] + ldr $s3,[$rounds,#12] +#ifdef __ARMEL__ + rev $s0,$s0 + rev $s1,$s1 + rev $s2,$s2 + rev $s3,$s3 +#endif +#endif + bl _armv4_AES_encrypt + + ldr $rounds,[sp],#4 @ pop out +#if __ARM_ARCH__>=7 +#ifdef __ARMEL__ + rev $s0,$s0 + rev $s1,$s1 + rev $s2,$s2 + rev $s3,$s3 +#endif + str $s0,[$rounds,#0] + str $s1,[$rounds,#4] + str $s2,[$rounds,#8] + str $s3,[$rounds,#12] +#else + mov $t1,$s0,lsr#24 @ write output in endian-neutral + mov $t2,$s0,lsr#16 @ manner... + mov $t3,$s0,lsr#8 + strb $t1,[$rounds,#0] + strb $t2,[$rounds,#1] + mov $t1,$s1,lsr#24 + strb $t3,[$rounds,#2] + mov $t2,$s1,lsr#16 + strb $s0,[$rounds,#3] + mov $t3,$s1,lsr#8 + strb $t1,[$rounds,#4] + strb $t2,[$rounds,#5] + mov $t1,$s2,lsr#24 + strb $t3,[$rounds,#6] + mov $t2,$s2,lsr#16 + strb $s1,[$rounds,#7] + mov $t3,$s2,lsr#8 + strb $t1,[$rounds,#8] + strb $t2,[$rounds,#9] + mov $t1,$s3,lsr#24 + strb $t3,[$rounds,#10] + mov $t2,$s3,lsr#16 + strb $s2,[$rounds,#11] + mov $t3,$s3,lsr#8 + strb $t1,[$rounds,#12] + strb $t2,[$rounds,#13] + strb $t3,[$rounds,#14] + strb $s3,[$rounds,#15] +#endif +#if __ARM_ARCH__>=5 + ldmia sp!,{r4-r12,pc} +#else + ldmia sp!,{r4-r12,lr} + tst lr,#1 + moveq pc,lr @ be binary compatible with V4, yet + bx lr @ interoperable with Thumb ISA:-) +#endif +.size AES_encrypt,.-AES_encrypt + +.type _armv4_AES_encrypt,%function +.align 2 +_armv4_AES_encrypt: + str lr,[sp,#-4]! @ push lr + ldmia $key!,{$t1-$i1} + eor $s0,$s0,$t1 + ldr $rounds,[$key,#240-16] + eor $s1,$s1,$t2 + eor $s2,$s2,$t3 + eor $s3,$s3,$i1 + sub $rounds,$rounds,#1 + mov lr,#255 + + and $i1,lr,$s0 + and $i2,lr,$s0,lsr#8 + and $i3,lr,$s0,lsr#16 + mov $s0,$s0,lsr#24 +.Lenc_loop: + ldr $t1,[$tbl,$i1,lsl#2] @ Te3[s0>>0] + and $i1,lr,$s1,lsr#16 @ i0 + ldr $t2,[$tbl,$i2,lsl#2] @ Te2[s0>>8] + and $i2,lr,$s1 + ldr $t3,[$tbl,$i3,lsl#2] @ Te1[s0>>16] + and $i3,lr,$s1,lsr#8 + ldr $s0,[$tbl,$s0,lsl#2] @ Te0[s0>>24] + mov $s1,$s1,lsr#24 + + ldr $i1,[$tbl,$i1,lsl#2] @ Te1[s1>>16] + ldr $i2,[$tbl,$i2,lsl#2] @ Te3[s1>>0] + ldr $i3,[$tbl,$i3,lsl#2] @ Te2[s1>>8] + eor $s0,$s0,$i1,ror#8 + ldr $s1,[$tbl,$s1,lsl#2] @ Te0[s1>>24] + and $i1,lr,$s2,lsr#8 @ i0 + eor $t2,$t2,$i2,ror#8 + and $i2,lr,$s2,lsr#16 @ i1 + eor $t3,$t3,$i3,ror#8 + and $i3,lr,$s2 + ldr $i1,[$tbl,$i1,lsl#2] @ Te2[s2>>8] + eor $s1,$s1,$t1,ror#24 + ldr $i2,[$tbl,$i2,lsl#2] @ Te1[s2>>16] + mov $s2,$s2,lsr#24 + + ldr $i3,[$tbl,$i3,lsl#2] @ Te3[s2>>0] + eor $s0,$s0,$i1,ror#16 + ldr $s2,[$tbl,$s2,lsl#2] @ Te0[s2>>24] + and $i1,lr,$s3 @ i0 + eor $s1,$s1,$i2,ror#8 + and $i2,lr,$s3,lsr#8 @ i1 + eor $t3,$t3,$i3,ror#16 + and $i3,lr,$s3,lsr#16 @ i2 + ldr $i1,[$tbl,$i1,lsl#2] @ Te3[s3>>0] + eor $s2,$s2,$t2,ror#16 + ldr $i2,[$tbl,$i2,lsl#2] @ Te2[s3>>8] + mov $s3,$s3,lsr#24 + + ldr $i3,[$tbl,$i3,lsl#2] @ Te1[s3>>16] + eor $s0,$s0,$i1,ror#24 + ldr $i1,[$key],#16 + eor $s1,$s1,$i2,ror#16 + ldr $s3,[$tbl,$s3,lsl#2] @ Te0[s3>>24] + eor $s2,$s2,$i3,ror#8 + ldr $t1,[$key,#-12] + eor $s3,$s3,$t3,ror#8 + + ldr $t2,[$key,#-8] + eor $s0,$s0,$i1 + ldr $t3,[$key,#-4] + and $i1,lr,$s0 + eor $s1,$s1,$t1 + and $i2,lr,$s0,lsr#8 + eor $s2,$s2,$t2 + and $i3,lr,$s0,lsr#16 + eor $s3,$s3,$t3 + mov $s0,$s0,lsr#24 + + subs $rounds,$rounds,#1 + bne .Lenc_loop + + add $tbl,$tbl,#2 + + ldrb $t1,[$tbl,$i1,lsl#2] @ Te4[s0>>0] + and $i1,lr,$s1,lsr#16 @ i0 + ldrb $t2,[$tbl,$i2,lsl#2] @ Te4[s0>>8] + and $i2,lr,$s1 + ldrb $t3,[$tbl,$i3,lsl#2] @ Te4[s0>>16] + and $i3,lr,$s1,lsr#8 + ldrb $s0,[$tbl,$s0,lsl#2] @ Te4[s0>>24] + mov $s1,$s1,lsr#24 + + ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s1>>16] + ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s1>>0] + ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s1>>8] + eor $s0,$i1,$s0,lsl#8 + ldrb $s1,[$tbl,$s1,lsl#2] @ Te4[s1>>24] + and $i1,lr,$s2,lsr#8 @ i0 + eor $t2,$i2,$t2,lsl#8 + and $i2,lr,$s2,lsr#16 @ i1 + eor $t3,$i3,$t3,lsl#8 + and $i3,lr,$s2 + ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s2>>8] + eor $s1,$t1,$s1,lsl#24 + ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s2>>16] + mov $s2,$s2,lsr#24 + + ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s2>>0] + eor $s0,$i1,$s0,lsl#8 + ldrb $s2,[$tbl,$s2,lsl#2] @ Te4[s2>>24] + and $i1,lr,$s3 @ i0 + eor $s1,$s1,$i2,lsl#16 + and $i2,lr,$s3,lsr#8 @ i1 + eor $t3,$i3,$t3,lsl#8 + and $i3,lr,$s3,lsr#16 @ i2 + ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s3>>0] + eor $s2,$t2,$s2,lsl#24 + ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s3>>8] + mov $s3,$s3,lsr#24 + + ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s3>>16] + eor $s0,$i1,$s0,lsl#8 + ldr $i1,[$key,#0] + ldrb $s3,[$tbl,$s3,lsl#2] @ Te4[s3>>24] + eor $s1,$s1,$i2,lsl#8 + ldr $t1,[$key,#4] + eor $s2,$s2,$i3,lsl#16 + ldr $t2,[$key,#8] + eor $s3,$t3,$s3,lsl#24 + ldr $t3,[$key,#12] + + eor $s0,$s0,$i1 + eor $s1,$s1,$t1 + eor $s2,$s2,$t2 + eor $s3,$s3,$t3 + + sub $tbl,$tbl,#2 + ldr pc,[sp],#4 @ pop and return +.size _armv4_AES_encrypt,.-_armv4_AES_encrypt + +.global AES_set_encrypt_key +.type AES_set_encrypt_key,%function +.align 5 +AES_set_encrypt_key: +_armv4_AES_set_encrypt_key: +#if __ARM_ARCH__<7 + sub r3,pc,#8 @ AES_set_encrypt_key +#else + adr r3,AES_set_encrypt_key +#endif + teq r0,#0 +#if __ARM_ARCH__>=7 + itt eq @ Thumb2 thing, sanity check in ARM +#endif + moveq r0,#-1 + beq .Labrt + teq r2,#0 +#if __ARM_ARCH__>=7 + itt eq @ Thumb2 thing, sanity check in ARM +#endif + moveq r0,#-1 + beq .Labrt + + teq r1,#128 + beq .Lok + teq r1,#192 + beq .Lok + teq r1,#256 +#if __ARM_ARCH__>=7 + itt ne @ Thumb2 thing, sanity check in ARM +#endif + movne r0,#-1 + bne .Labrt + +.Lok: stmdb sp!,{r4-r12,lr} + sub $tbl,r3,#_armv4_AES_set_encrypt_key-AES_Te-1024 @ Te4 + + mov $rounds,r0 @ inp + mov lr,r1 @ bits + mov $key,r2 @ key + +#if __ARM_ARCH__<7 + ldrb $s0,[$rounds,#3] @ load input data in endian-neutral + ldrb $t1,[$rounds,#2] @ manner... + ldrb $t2,[$rounds,#1] + ldrb $t3,[$rounds,#0] + orr $s0,$s0,$t1,lsl#8 + ldrb $s1,[$rounds,#7] + orr $s0,$s0,$t2,lsl#16 + ldrb $t1,[$rounds,#6] + orr $s0,$s0,$t3,lsl#24 + ldrb $t2,[$rounds,#5] + ldrb $t3,[$rounds,#4] + orr $s1,$s1,$t1,lsl#8 + ldrb $s2,[$rounds,#11] + orr $s1,$s1,$t2,lsl#16 + ldrb $t1,[$rounds,#10] + orr $s1,$s1,$t3,lsl#24 + ldrb $t2,[$rounds,#9] + ldrb $t3,[$rounds,#8] + orr $s2,$s2,$t1,lsl#8 + ldrb $s3,[$rounds,#15] + orr $s2,$s2,$t2,lsl#16 + ldrb $t1,[$rounds,#14] + orr $s2,$s2,$t3,lsl#24 + ldrb $t2,[$rounds,#13] + ldrb $t3,[$rounds,#12] + orr $s3,$s3,$t1,lsl#8 + str $s0,[$key],#16 + orr $s3,$s3,$t2,lsl#16 + str $s1,[$key,#-12] + orr $s3,$s3,$t3,lsl#24 + str $s2,[$key,#-8] + str $s3,[$key,#-4] +#else + ldr $s0,[$rounds,#0] + ldr $s1,[$rounds,#4] + ldr $s2,[$rounds,#8] + ldr $s3,[$rounds,#12] +#ifdef __ARMEL__ + rev $s0,$s0 + rev $s1,$s1 + rev $s2,$s2 + rev $s3,$s3 +#endif + str $s0,[$key],#16 + str $s1,[$key,#-12] + str $s2,[$key,#-8] + str $s3,[$key,#-4] +#endif + + teq lr,#128 + bne .Lnot128 + mov $rounds,#10 + str $rounds,[$key,#240-16] + add $t3,$tbl,#256 @ rcon + mov lr,#255 + +.L128_loop: + and $t2,lr,$s3,lsr#24 + and $i1,lr,$s3,lsr#16 + ldrb $t2,[$tbl,$t2] + and $i2,lr,$s3,lsr#8 + ldrb $i1,[$tbl,$i1] + and $i3,lr,$s3 + ldrb $i2,[$tbl,$i2] + orr $t2,$t2,$i1,lsl#24 + ldrb $i3,[$tbl,$i3] + orr $t2,$t2,$i2,lsl#16 + ldr $t1,[$t3],#4 @ rcon[i++] + orr $t2,$t2,$i3,lsl#8 + eor $t2,$t2,$t1 + eor $s0,$s0,$t2 @ rk[4]=rk[0]^... + eor $s1,$s1,$s0 @ rk[5]=rk[1]^rk[4] + str $s0,[$key],#16 + eor $s2,$s2,$s1 @ rk[6]=rk[2]^rk[5] + str $s1,[$key,#-12] + eor $s3,$s3,$s2 @ rk[7]=rk[3]^rk[6] + str $s2,[$key,#-8] + subs $rounds,$rounds,#1 + str $s3,[$key,#-4] + bne .L128_loop + sub r2,$key,#176 + b .Ldone + +.Lnot128: +#if __ARM_ARCH__<7 + ldrb $i2,[$rounds,#19] + ldrb $t1,[$rounds,#18] + ldrb $t2,[$rounds,#17] + ldrb $t3,[$rounds,#16] + orr $i2,$i2,$t1,lsl#8 + ldrb $i3,[$rounds,#23] + orr $i2,$i2,$t2,lsl#16 + ldrb $t1,[$rounds,#22] + orr $i2,$i2,$t3,lsl#24 + ldrb $t2,[$rounds,#21] + ldrb $t3,[$rounds,#20] + orr $i3,$i3,$t1,lsl#8 + orr $i3,$i3,$t2,lsl#16 + str $i2,[$key],#8 + orr $i3,$i3,$t3,lsl#24 + str $i3,[$key,#-4] +#else + ldr $i2,[$rounds,#16] + ldr $i3,[$rounds,#20] +#ifdef __ARMEL__ + rev $i2,$i2 + rev $i3,$i3 +#endif + str $i2,[$key],#8 + str $i3,[$key,#-4] +#endif + + teq lr,#192 + bne .Lnot192 + mov $rounds,#12 + str $rounds,[$key,#240-24] + add $t3,$tbl,#256 @ rcon + mov lr,#255 + mov $rounds,#8 + +.L192_loop: + and $t2,lr,$i3,lsr#24 + and $i1,lr,$i3,lsr#16 + ldrb $t2,[$tbl,$t2] + and $i2,lr,$i3,lsr#8 + ldrb $i1,[$tbl,$i1] + and $i3,lr,$i3 + ldrb $i2,[$tbl,$i2] + orr $t2,$t2,$i1,lsl#24 + ldrb $i3,[$tbl,$i3] + orr $t2,$t2,$i2,lsl#16 + ldr $t1,[$t3],#4 @ rcon[i++] + orr $t2,$t2,$i3,lsl#8 + eor $i3,$t2,$t1 + eor $s0,$s0,$i3 @ rk[6]=rk[0]^... + eor $s1,$s1,$s0 @ rk[7]=rk[1]^rk[6] + str $s0,[$key],#24 + eor $s2,$s2,$s1 @ rk[8]=rk[2]^rk[7] + str $s1,[$key,#-20] + eor $s3,$s3,$s2 @ rk[9]=rk[3]^rk[8] + str $s2,[$key,#-16] + subs $rounds,$rounds,#1 + str $s3,[$key,#-12] +#if __ARM_ARCH__>=7 + itt eq @ Thumb2 thing, sanity check in ARM +#endif + subeq r2,$key,#216 + beq .Ldone + + ldr $i1,[$key,#-32] + ldr $i2,[$key,#-28] + eor $i1,$i1,$s3 @ rk[10]=rk[4]^rk[9] + eor $i3,$i2,$i1 @ rk[11]=rk[5]^rk[10] + str $i1,[$key,#-8] + str $i3,[$key,#-4] + b .L192_loop + +.Lnot192: +#if __ARM_ARCH__<7 + ldrb $i2,[$rounds,#27] + ldrb $t1,[$rounds,#26] + ldrb $t2,[$rounds,#25] + ldrb $t3,[$rounds,#24] + orr $i2,$i2,$t1,lsl#8 + ldrb $i3,[$rounds,#31] + orr $i2,$i2,$t2,lsl#16 + ldrb $t1,[$rounds,#30] + orr $i2,$i2,$t3,lsl#24 + ldrb $t2,[$rounds,#29] + ldrb $t3,[$rounds,#28] + orr $i3,$i3,$t1,lsl#8 + orr $i3,$i3,$t2,lsl#16 + str $i2,[$key],#8 + orr $i3,$i3,$t3,lsl#24 + str $i3,[$key,#-4] +#else + ldr $i2,[$rounds,#24] + ldr $i3,[$rounds,#28] +#ifdef __ARMEL__ + rev $i2,$i2 + rev $i3,$i3 +#endif + str $i2,[$key],#8 + str $i3,[$key,#-4] +#endif + + mov $rounds,#14 + str $rounds,[$key,#240-32] + add $t3,$tbl,#256 @ rcon + mov lr,#255 + mov $rounds,#7 + +.L256_loop: + and $t2,lr,$i3,lsr#24 + and $i1,lr,$i3,lsr#16 + ldrb $t2,[$tbl,$t2] + and $i2,lr,$i3,lsr#8 + ldrb $i1,[$tbl,$i1] + and $i3,lr,$i3 + ldrb $i2,[$tbl,$i2] + orr $t2,$t2,$i1,lsl#24 + ldrb $i3,[$tbl,$i3] + orr $t2,$t2,$i2,lsl#16 + ldr $t1,[$t3],#4 @ rcon[i++] + orr $t2,$t2,$i3,lsl#8 + eor $i3,$t2,$t1 + eor $s0,$s0,$i3 @ rk[8]=rk[0]^... + eor $s1,$s1,$s0 @ rk[9]=rk[1]^rk[8] + str $s0,[$key],#32 + eor $s2,$s2,$s1 @ rk[10]=rk[2]^rk[9] + str $s1,[$key,#-28] + eor $s3,$s3,$s2 @ rk[11]=rk[3]^rk[10] + str $s2,[$key,#-24] + subs $rounds,$rounds,#1 + str $s3,[$key,#-20] +#if __ARM_ARCH__>=7 + itt eq @ Thumb2 thing, sanity check in ARM +#endif + subeq r2,$key,#256 + beq .Ldone + + and $t2,lr,$s3 + and $i1,lr,$s3,lsr#8 + ldrb $t2,[$tbl,$t2] + and $i2,lr,$s3,lsr#16 + ldrb $i1,[$tbl,$i1] + and $i3,lr,$s3,lsr#24 + ldrb $i2,[$tbl,$i2] + orr $t2,$t2,$i1,lsl#8 + ldrb $i3,[$tbl,$i3] + orr $t2,$t2,$i2,lsl#16 + ldr $t1,[$key,#-48] + orr $t2,$t2,$i3,lsl#24 + + ldr $i1,[$key,#-44] + ldr $i2,[$key,#-40] + eor $t1,$t1,$t2 @ rk[12]=rk[4]^... + ldr $i3,[$key,#-36] + eor $i1,$i1,$t1 @ rk[13]=rk[5]^rk[12] + str $t1,[$key,#-16] + eor $i2,$i2,$i1 @ rk[14]=rk[6]^rk[13] + str $i1,[$key,#-12] + eor $i3,$i3,$i2 @ rk[15]=rk[7]^rk[14] + str $i2,[$key,#-8] + str $i3,[$key,#-4] + b .L256_loop + +.align 2 +.Ldone: mov r0,#0 + ldmia sp!,{r4-r12,lr} +.Labrt: +#if defined(__thumb2__) && __ARM_ARCH__>=7 + .short 0x4770 @ bx lr in Thumb2 encoding +#else + tst lr,#1 + moveq pc,lr @ be binary compatible with V4, yet + bx lr @ interoperable with Thumb ISA:-) +#endif +.size AES_set_encrypt_key,.-AES_set_encrypt_key + +.global AES_set_decrypt_key +.type AES_set_decrypt_key,%function +.align 5 +AES_set_decrypt_key: + str lr,[sp,#-4]! @ push lr + bl _armv4_AES_set_encrypt_key + teq r0,#0 + ldr lr,[sp],#4 @ pop lr + bne .Labrt + + mov r0,r2 @ AES_set_encrypt_key preserves r2, + mov r1,r2 @ which is AES_KEY *key + b _armv4_AES_set_enc2dec_key +.size AES_set_decrypt_key,.-AES_set_decrypt_key + +@ void AES_set_enc2dec_key(const AES_KEY *inp,AES_KEY *out) +.global AES_set_enc2dec_key +.type AES_set_enc2dec_key,%function +.align 5 +AES_set_enc2dec_key: +_armv4_AES_set_enc2dec_key: + stmdb sp!,{r4-r12,lr} + + ldr $rounds,[r0,#240] + mov $i1,r0 @ input + add $i2,r0,$rounds,lsl#4 + mov $key,r1 @ ouput + add $tbl,r1,$rounds,lsl#4 + str $rounds,[r1,#240] + +.Linv: ldr $s0,[$i1],#16 + ldr $s1,[$i1,#-12] + ldr $s2,[$i1,#-8] + ldr $s3,[$i1,#-4] + ldr $t1,[$i2],#-16 + ldr $t2,[$i2,#16+4] + ldr $t3,[$i2,#16+8] + ldr $i3,[$i2,#16+12] + str $s0,[$tbl],#-16 + str $s1,[$tbl,#16+4] + str $s2,[$tbl,#16+8] + str $s3,[$tbl,#16+12] + str $t1,[$key],#16 + str $t2,[$key,#-12] + str $t3,[$key,#-8] + str $i3,[$key,#-4] + teq $i1,$i2 + bne .Linv + + ldr $s0,[$i1] + ldr $s1,[$i1,#4] + ldr $s2,[$i1,#8] + ldr $s3,[$i1,#12] + str $s0,[$key] + str $s1,[$key,#4] + str $s2,[$key,#8] + str $s3,[$key,#12] + sub $key,$key,$rounds,lsl#3 +___ +$mask80=$i1; +$mask1b=$i2; +$mask7f=$i3; +$code.=<<___; + ldr $s0,[$key,#16]! @ prefetch tp1 + mov $mask80,#0x80 + mov $mask1b,#0x1b + orr $mask80,$mask80,#0x8000 + orr $mask1b,$mask1b,#0x1b00 + orr $mask80,$mask80,$mask80,lsl#16 + orr $mask1b,$mask1b,$mask1b,lsl#16 + sub $rounds,$rounds,#1 + mvn $mask7f,$mask80 + mov $rounds,$rounds,lsl#2 @ (rounds-1)*4 + +.Lmix: and $t1,$s0,$mask80 + and $s1,$s0,$mask7f + sub $t1,$t1,$t1,lsr#7 + and $t1,$t1,$mask1b + eor $s1,$t1,$s1,lsl#1 @ tp2 + + and $t1,$s1,$mask80 + and $s2,$s1,$mask7f + sub $t1,$t1,$t1,lsr#7 + and $t1,$t1,$mask1b + eor $s2,$t1,$s2,lsl#1 @ tp4 + + and $t1,$s2,$mask80 + and $s3,$s2,$mask7f + sub $t1,$t1,$t1,lsr#7 + and $t1,$t1,$mask1b + eor $s3,$t1,$s3,lsl#1 @ tp8 + + eor $t1,$s1,$s2 + eor $t2,$s0,$s3 @ tp9 + eor $t1,$t1,$s3 @ tpe + eor $t1,$t1,$s1,ror#24 + eor $t1,$t1,$t2,ror#24 @ ^= ROTATE(tpb=tp9^tp2,8) + eor $t1,$t1,$s2,ror#16 + eor $t1,$t1,$t2,ror#16 @ ^= ROTATE(tpd=tp9^tp4,16) + eor $t1,$t1,$t2,ror#8 @ ^= ROTATE(tp9,24) + + ldr $s0,[$key,#4] @ prefetch tp1 + str $t1,[$key],#4 + subs $rounds,$rounds,#1 + bne .Lmix + + mov r0,#0 +#if __ARM_ARCH__>=5 + ldmia sp!,{r4-r12,pc} +#else + ldmia sp!,{r4-r12,lr} + tst lr,#1 + moveq pc,lr @ be binary compatible with V4, yet + bx lr @ interoperable with Thumb ISA:-) +#endif +.size AES_set_enc2dec_key,.-AES_set_enc2dec_key + +.type AES_Td,%object +.align 5 +AES_Td: +.word 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96 +.word 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393 +.word 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25 +.word 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f +.word 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1 +.word 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6 +.word 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da +.word 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844 +.word 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd +.word 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4 +.word 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45 +.word 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94 +.word 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7 +.word 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a +.word 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5 +.word 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c +.word 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1 +.word 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a +.word 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75 +.word 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051 +.word 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46 +.word 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff +.word 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77 +.word 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb +.word 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000 +.word 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e +.word 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927 +.word 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a +.word 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e +.word 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16 +.word 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d +.word 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8 +.word 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd +.word 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34 +.word 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163 +.word 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120 +.word 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d +.word 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0 +.word 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422 +.word 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef +.word 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36 +.word 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4 +.word 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662 +.word 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5 +.word 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3 +.word 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b +.word 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8 +.word 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6 +.word 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6 +.word 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0 +.word 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815 +.word 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f +.word 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df +.word 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f +.word 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e +.word 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713 +.word 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89 +.word 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c +.word 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf +.word 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86 +.word 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f +.word 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541 +.word 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190 +.word 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742 +@ Td4[256] +.byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38 +.byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb +.byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87 +.byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb +.byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d +.byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e +.byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2 +.byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25 +.byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16 +.byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92 +.byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda +.byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84 +.byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a +.byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06 +.byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02 +.byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b +.byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea +.byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73 +.byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85 +.byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e +.byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89 +.byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b +.byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20 +.byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4 +.byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31 +.byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f +.byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d +.byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef +.byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0 +.byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61 +.byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26 +.byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d +.size AES_Td,.-AES_Td + +@ void AES_decrypt(const unsigned char *in, unsigned char *out, +@ const AES_KEY *key) { +.global AES_decrypt +.type AES_decrypt,%function +.align 5 +AES_decrypt: +#if __ARM_ARCH__<7 + sub r3,pc,#8 @ AES_decrypt +#else + adr r3,AES_decrypt +#endif + stmdb sp!,{r1,r4-r12,lr} + mov $rounds,r0 @ inp + mov $key,r2 + sub $tbl,r3,#AES_decrypt-AES_Td @ Td +#if __ARM_ARCH__<7 + ldrb $s0,[$rounds,#3] @ load input data in endian-neutral + ldrb $t1,[$rounds,#2] @ manner... + ldrb $t2,[$rounds,#1] + ldrb $t3,[$rounds,#0] + orr $s0,$s0,$t1,lsl#8 + ldrb $s1,[$rounds,#7] + orr $s0,$s0,$t2,lsl#16 + ldrb $t1,[$rounds,#6] + orr $s0,$s0,$t3,lsl#24 + ldrb $t2,[$rounds,#5] + ldrb $t3,[$rounds,#4] + orr $s1,$s1,$t1,lsl#8 + ldrb $s2,[$rounds,#11] + orr $s1,$s1,$t2,lsl#16 + ldrb $t1,[$rounds,#10] + orr $s1,$s1,$t3,lsl#24 + ldrb $t2,[$rounds,#9] + ldrb $t3,[$rounds,#8] + orr $s2,$s2,$t1,lsl#8 + ldrb $s3,[$rounds,#15] + orr $s2,$s2,$t2,lsl#16 + ldrb $t1,[$rounds,#14] + orr $s2,$s2,$t3,lsl#24 + ldrb $t2,[$rounds,#13] + ldrb $t3,[$rounds,#12] + orr $s3,$s3,$t1,lsl#8 + orr $s3,$s3,$t2,lsl#16 + orr $s3,$s3,$t3,lsl#24 +#else + ldr $s0,[$rounds,#0] + ldr $s1,[$rounds,#4] + ldr $s2,[$rounds,#8] + ldr $s3,[$rounds,#12] +#ifdef __ARMEL__ + rev $s0,$s0 + rev $s1,$s1 + rev $s2,$s2 + rev $s3,$s3 +#endif +#endif + bl _armv4_AES_decrypt + + ldr $rounds,[sp],#4 @ pop out +#if __ARM_ARCH__>=7 +#ifdef __ARMEL__ + rev $s0,$s0 + rev $s1,$s1 + rev $s2,$s2 + rev $s3,$s3 +#endif + str $s0,[$rounds,#0] + str $s1,[$rounds,#4] + str $s2,[$rounds,#8] + str $s3,[$rounds,#12] +#else + mov $t1,$s0,lsr#24 @ write output in endian-neutral + mov $t2,$s0,lsr#16 @ manner... + mov $t3,$s0,lsr#8 + strb $t1,[$rounds,#0] + strb $t2,[$rounds,#1] + mov $t1,$s1,lsr#24 + strb $t3,[$rounds,#2] + mov $t2,$s1,lsr#16 + strb $s0,[$rounds,#3] + mov $t3,$s1,lsr#8 + strb $t1,[$rounds,#4] + strb $t2,[$rounds,#5] + mov $t1,$s2,lsr#24 + strb $t3,[$rounds,#6] + mov $t2,$s2,lsr#16 + strb $s1,[$rounds,#7] + mov $t3,$s2,lsr#8 + strb $t1,[$rounds,#8] + strb $t2,[$rounds,#9] + mov $t1,$s3,lsr#24 + strb $t3,[$rounds,#10] + mov $t2,$s3,lsr#16 + strb $s2,[$rounds,#11] + mov $t3,$s3,lsr#8 + strb $t1,[$rounds,#12] + strb $t2,[$rounds,#13] + strb $t3,[$rounds,#14] + strb $s3,[$rounds,#15] +#endif +#if __ARM_ARCH__>=5 + ldmia sp!,{r4-r12,pc} +#else + ldmia sp!,{r4-r12,lr} + tst lr,#1 + moveq pc,lr @ be binary compatible with V4, yet + bx lr @ interoperable with Thumb ISA:-) +#endif +.size AES_decrypt,.-AES_decrypt + +.type _armv4_AES_decrypt,%function +.align 2 +_armv4_AES_decrypt: + str lr,[sp,#-4]! @ push lr + ldmia $key!,{$t1-$i1} + eor $s0,$s0,$t1 + ldr $rounds,[$key,#240-16] + eor $s1,$s1,$t2 + eor $s2,$s2,$t3 + eor $s3,$s3,$i1 + sub $rounds,$rounds,#1 + mov lr,#255 + + and $i1,lr,$s0,lsr#16 + and $i2,lr,$s0,lsr#8 + and $i3,lr,$s0 + mov $s0,$s0,lsr#24 +.Ldec_loop: + ldr $t1,[$tbl,$i1,lsl#2] @ Td1[s0>>16] + and $i1,lr,$s1 @ i0 + ldr $t2,[$tbl,$i2,lsl#2] @ Td2[s0>>8] + and $i2,lr,$s1,lsr#16 + ldr $t3,[$tbl,$i3,lsl#2] @ Td3[s0>>0] + and $i3,lr,$s1,lsr#8 + ldr $s0,[$tbl,$s0,lsl#2] @ Td0[s0>>24] + mov $s1,$s1,lsr#24 + + ldr $i1,[$tbl,$i1,lsl#2] @ Td3[s1>>0] + ldr $i2,[$tbl,$i2,lsl#2] @ Td1[s1>>16] + ldr $i3,[$tbl,$i3,lsl#2] @ Td2[s1>>8] + eor $s0,$s0,$i1,ror#24 + ldr $s1,[$tbl,$s1,lsl#2] @ Td0[s1>>24] + and $i1,lr,$s2,lsr#8 @ i0 + eor $t2,$i2,$t2,ror#8 + and $i2,lr,$s2 @ i1 + eor $t3,$i3,$t3,ror#8 + and $i3,lr,$s2,lsr#16 + ldr $i1,[$tbl,$i1,lsl#2] @ Td2[s2>>8] + eor $s1,$s1,$t1,ror#8 + ldr $i2,[$tbl,$i2,lsl#2] @ Td3[s2>>0] + mov $s2,$s2,lsr#24 + + ldr $i3,[$tbl,$i3,lsl#2] @ Td1[s2>>16] + eor $s0,$s0,$i1,ror#16 + ldr $s2,[$tbl,$s2,lsl#2] @ Td0[s2>>24] + and $i1,lr,$s3,lsr#16 @ i0 + eor $s1,$s1,$i2,ror#24 + and $i2,lr,$s3,lsr#8 @ i1 + eor $t3,$i3,$t3,ror#8 + and $i3,lr,$s3 @ i2 + ldr $i1,[$tbl,$i1,lsl#2] @ Td1[s3>>16] + eor $s2,$s2,$t2,ror#8 + ldr $i2,[$tbl,$i2,lsl#2] @ Td2[s3>>8] + mov $s3,$s3,lsr#24 + + ldr $i3,[$tbl,$i3,lsl#2] @ Td3[s3>>0] + eor $s0,$s0,$i1,ror#8 + ldr $i1,[$key],#16 + eor $s1,$s1,$i2,ror#16 + ldr $s3,[$tbl,$s3,lsl#2] @ Td0[s3>>24] + eor $s2,$s2,$i3,ror#24 + + ldr $t1,[$key,#-12] + eor $s0,$s0,$i1 + ldr $t2,[$key,#-8] + eor $s3,$s3,$t3,ror#8 + ldr $t3,[$key,#-4] + and $i1,lr,$s0,lsr#16 + eor $s1,$s1,$t1 + and $i2,lr,$s0,lsr#8 + eor $s2,$s2,$t2 + and $i3,lr,$s0 + eor $s3,$s3,$t3 + mov $s0,$s0,lsr#24 + + subs $rounds,$rounds,#1 + bne .Ldec_loop + + add $tbl,$tbl,#1024 + + ldr $t2,[$tbl,#0] @ prefetch Td4 + ldr $t3,[$tbl,#32] + ldr $t1,[$tbl,#64] + ldr $t2,[$tbl,#96] + ldr $t3,[$tbl,#128] + ldr $t1,[$tbl,#160] + ldr $t2,[$tbl,#192] + ldr $t3,[$tbl,#224] + + ldrb $s0,[$tbl,$s0] @ Td4[s0>>24] + ldrb $t1,[$tbl,$i1] @ Td4[s0>>16] + and $i1,lr,$s1 @ i0 + ldrb $t2,[$tbl,$i2] @ Td4[s0>>8] + and $i2,lr,$s1,lsr#16 + ldrb $t3,[$tbl,$i3] @ Td4[s0>>0] + and $i3,lr,$s1,lsr#8 + + add $s1,$tbl,$s1,lsr#24 + ldrb $i1,[$tbl,$i1] @ Td4[s1>>0] + ldrb $s1,[$s1] @ Td4[s1>>24] + ldrb $i2,[$tbl,$i2] @ Td4[s1>>16] + eor $s0,$i1,$s0,lsl#24 + ldrb $i3,[$tbl,$i3] @ Td4[s1>>8] + eor $s1,$t1,$s1,lsl#8 + and $i1,lr,$s2,lsr#8 @ i0 + eor $t2,$t2,$i2,lsl#8 + and $i2,lr,$s2 @ i1 + ldrb $i1,[$tbl,$i1] @ Td4[s2>>8] + eor $t3,$t3,$i3,lsl#8 + ldrb $i2,[$tbl,$i2] @ Td4[s2>>0] + and $i3,lr,$s2,lsr#16 + + add $s2,$tbl,$s2,lsr#24 + ldrb $s2,[$s2] @ Td4[s2>>24] + eor $s0,$s0,$i1,lsl#8 + ldrb $i3,[$tbl,$i3] @ Td4[s2>>16] + eor $s1,$i2,$s1,lsl#16 + and $i1,lr,$s3,lsr#16 @ i0 + eor $s2,$t2,$s2,lsl#16 + and $i2,lr,$s3,lsr#8 @ i1 + ldrb $i1,[$tbl,$i1] @ Td4[s3>>16] + eor $t3,$t3,$i3,lsl#16 + ldrb $i2,[$tbl,$i2] @ Td4[s3>>8] + and $i3,lr,$s3 @ i2 + + add $s3,$tbl,$s3,lsr#24 + ldrb $i3,[$tbl,$i3] @ Td4[s3>>0] + ldrb $s3,[$s3] @ Td4[s3>>24] + eor $s0,$s0,$i1,lsl#16 + ldr $i1,[$key,#0] + eor $s1,$s1,$i2,lsl#8 + ldr $t1,[$key,#4] + eor $s2,$i3,$s2,lsl#8 + ldr $t2,[$key,#8] + eor $s3,$t3,$s3,lsl#24 + ldr $t3,[$key,#12] + + eor $s0,$s0,$i1 + eor $s1,$s1,$t1 + eor $s2,$s2,$t2 + eor $s3,$s3,$t3 + + sub $tbl,$tbl,#1024 + ldr pc,[sp],#4 @ pop and return +.size _armv4_AES_decrypt,.-_armv4_AES_decrypt +.asciz "AES for ARMv4, CRYPTOGAMS by <appro\@openssl.org>" +.align 2 + +#endif +___ + +$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 + +open SELF,$0; +while(<SELF>) { + next if (/^#!/); + last if (!s/^#/@/ and !/^$/); + print; +} +close SELF; + +print $code; +close STDOUT; # enforce flush diff --git a/crypto/aes/asm/aes-x86_64.pl b/crypto/aes/asm/aes-x86_64.pl new file mode 100644 index 00000000..e2a12462 --- /dev/null +++ b/crypto/aes/asm/aes-x86_64.pl @@ -0,0 +1,2811 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# Version 2.1. +# +# aes-*-cbc benchmarks are improved by >70% [compared to gcc 3.3.2 on +# Opteron 240 CPU] plus all the bells-n-whistles from 32-bit version +# [you'll notice a lot of resemblance], such as compressed S-boxes +# in little-endian byte order, prefetch of these tables in CBC mode, +# as well as avoiding L1 cache aliasing between stack frame and key +# schedule and already mentioned tables, compressed Td4... +# +# Performance in number of cycles per processed byte for 128-bit key: +# +# ECB encrypt ECB decrypt CBC large chunk +# AMD64 33 43 13.0 +# EM64T 38 56 18.6(*) +# Core 2 30 42 14.5(*) +# Atom 65 86 32.1(*) +# +# (*) with hyper-threading off + +$flavour = shift; +$output = shift; +if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } + +$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or +( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or +die "can't locate x86_64-xlate.pl"; + +open OUT,"| \"$^X\" $xlate $flavour $output"; +*STDOUT=*OUT; + +$verticalspin=1; # unlike 32-bit version $verticalspin performs + # ~15% better on both AMD and Intel cores +$speed_limit=512; # see aes-586.pl for details + +$code=".text\n"; + +$s0="%eax"; +$s1="%ebx"; +$s2="%ecx"; +$s3="%edx"; +$acc0="%esi"; $mask80="%rsi"; +$acc1="%edi"; $maskfe="%rdi"; +$acc2="%ebp"; $mask1b="%rbp"; +$inp="%r8"; +$out="%r9"; +$t0="%r10d"; +$t1="%r11d"; +$t2="%r12d"; +$rnds="%r13d"; +$sbox="%r14"; +$key="%r15"; + +sub hi() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1h/; $r; } +sub lo() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1l/; + $r =~ s/%[er]([sd]i)/%\1l/; + $r =~ s/%(r[0-9]+)[d]?/%\1b/; $r; } +sub LO() { my $r=shift; $r =~ s/%r([a-z]+)/%e\1/; + $r =~ s/%r([0-9]+)/%r\1d/; $r; } +sub _data_word() +{ my $i; + while(defined($i=shift)) { $code.=sprintf".long\t0x%08x,0x%08x\n",$i,$i; } +} +sub data_word() +{ my $i; + my $last=pop(@_); + $code.=".long\t"; + while(defined($i=shift)) { $code.=sprintf"0x%08x,",$i; } + $code.=sprintf"0x%08x\n",$last; +} + +sub data_byte() +{ my $i; + my $last=pop(@_); + $code.=".byte\t"; + while(defined($i=shift)) { $code.=sprintf"0x%02x,",$i&0xff; } + $code.=sprintf"0x%02x\n",$last&0xff; +} + +sub encvert() +{ my $t3="%r8d"; # zaps $inp! + +$code.=<<___; + # favor 3-way issue Opteron pipeline... + movzb `&lo("$s0")`,$acc0 + movzb `&lo("$s1")`,$acc1 + movzb `&lo("$s2")`,$acc2 + mov 0($sbox,$acc0,8),$t0 + mov 0($sbox,$acc1,8),$t1 + mov 0($sbox,$acc2,8),$t2 + + movzb `&hi("$s1")`,$acc0 + movzb `&hi("$s2")`,$acc1 + movzb `&lo("$s3")`,$acc2 + xor 3($sbox,$acc0,8),$t0 + xor 3($sbox,$acc1,8),$t1 + mov 0($sbox,$acc2,8),$t3 + + movzb `&hi("$s3")`,$acc0 + shr \$16,$s2 + movzb `&hi("$s0")`,$acc2 + xor 3($sbox,$acc0,8),$t2 + shr \$16,$s3 + xor 3($sbox,$acc2,8),$t3 + + shr \$16,$s1 + lea 16($key),$key + shr \$16,$s0 + + movzb `&lo("$s2")`,$acc0 + movzb `&lo("$s3")`,$acc1 + movzb `&lo("$s0")`,$acc2 + xor 2($sbox,$acc0,8),$t0 + xor 2($sbox,$acc1,8),$t1 + xor 2($sbox,$acc2,8),$t2 + + movzb `&hi("$s3")`,$acc0 + movzb `&hi("$s0")`,$acc1 + movzb `&lo("$s1")`,$acc2 + xor 1($sbox,$acc0,8),$t0 + xor 1($sbox,$acc1,8),$t1 + xor 2($sbox,$acc2,8),$t3 + + mov 12($key),$s3 + movzb `&hi("$s1")`,$acc1 + movzb `&hi("$s2")`,$acc2 + mov 0($key),$s0 + xor 1($sbox,$acc1,8),$t2 + xor 1($sbox,$acc2,8),$t3 + + mov 4($key),$s1 + mov 8($key),$s2 + xor $t0,$s0 + xor $t1,$s1 + xor $t2,$s2 + xor $t3,$s3 +___ +} + +sub enclastvert() +{ my $t3="%r8d"; # zaps $inp! + +$code.=<<___; + movzb `&lo("$s0")`,$acc0 + movzb `&lo("$s1")`,$acc1 + movzb `&lo("$s2")`,$acc2 + movzb 2($sbox,$acc0,8),$t0 + movzb 2($sbox,$acc1,8),$t1 + movzb 2($sbox,$acc2,8),$t2 + + movzb `&lo("$s3")`,$acc0 + movzb `&hi("$s1")`,$acc1 + movzb `&hi("$s2")`,$acc2 + movzb 2($sbox,$acc0,8),$t3 + mov 0($sbox,$acc1,8),$acc1 #$t0 + mov 0($sbox,$acc2,8),$acc2 #$t1 + + and \$0x0000ff00,$acc1 + and \$0x0000ff00,$acc2 + + xor $acc1,$t0 + xor $acc2,$t1 + shr \$16,$s2 + + movzb `&hi("$s3")`,$acc0 + movzb `&hi("$s0")`,$acc1 + shr \$16,$s3 + mov 0($sbox,$acc0,8),$acc0 #$t2 + mov 0($sbox,$acc1,8),$acc1 #$t3 + + and \$0x0000ff00,$acc0 + and \$0x0000ff00,$acc1 + shr \$16,$s1 + xor $acc0,$t2 + xor $acc1,$t3 + shr \$16,$s0 + + movzb `&lo("$s2")`,$acc0 + movzb `&lo("$s3")`,$acc1 + movzb `&lo("$s0")`,$acc2 + mov 0($sbox,$acc0,8),$acc0 #$t0 + mov 0($sbox,$acc1,8),$acc1 #$t1 + mov 0($sbox,$acc2,8),$acc2 #$t2 + + and \$0x00ff0000,$acc0 + and \$0x00ff0000,$acc1 + and \$0x00ff0000,$acc2 + + xor $acc0,$t0 + xor $acc1,$t1 + xor $acc2,$t2 + + movzb `&lo("$s1")`,$acc0 + movzb `&hi("$s3")`,$acc1 + movzb `&hi("$s0")`,$acc2 + mov 0($sbox,$acc0,8),$acc0 #$t3 + mov 2($sbox,$acc1,8),$acc1 #$t0 + mov 2($sbox,$acc2,8),$acc2 #$t1 + + and \$0x00ff0000,$acc0 + and \$0xff000000,$acc1 + and \$0xff000000,$acc2 + + xor $acc0,$t3 + xor $acc1,$t0 + xor $acc2,$t1 + + movzb `&hi("$s1")`,$acc0 + movzb `&hi("$s2")`,$acc1 + mov 16+12($key),$s3 + mov 2($sbox,$acc0,8),$acc0 #$t2 + mov 2($sbox,$acc1,8),$acc1 #$t3 + mov 16+0($key),$s0 + + and \$0xff000000,$acc0 + and \$0xff000000,$acc1 + + xor $acc0,$t2 + xor $acc1,$t3 + + mov 16+4($key),$s1 + mov 16+8($key),$s2 + xor $t0,$s0 + xor $t1,$s1 + xor $t2,$s2 + xor $t3,$s3 +___ +} + +sub encstep() +{ my ($i,@s) = @_; + my $tmp0=$acc0; + my $tmp1=$acc1; + my $tmp2=$acc2; + my $out=($t0,$t1,$t2,$s[0])[$i]; + + if ($i==3) { + $tmp0=$s[1]; + $tmp1=$s[2]; + $tmp2=$s[3]; + } + $code.=" movzb ".&lo($s[0]).",$out\n"; + $code.=" mov $s[2],$tmp1\n" if ($i!=3); + $code.=" lea 16($key),$key\n" if ($i==0); + + $code.=" movzb ".&hi($s[1]).",$tmp0\n"; + $code.=" mov 0($sbox,$out,8),$out\n"; + + $code.=" shr \$16,$tmp1\n"; + $code.=" mov $s[3],$tmp2\n" if ($i!=3); + $code.=" xor 3($sbox,$tmp0,8),$out\n"; + + $code.=" movzb ".&lo($tmp1).",$tmp1\n"; + $code.=" shr \$24,$tmp2\n"; + $code.=" xor 4*$i($key),$out\n"; + + $code.=" xor 2($sbox,$tmp1,8),$out\n"; + $code.=" xor 1($sbox,$tmp2,8),$out\n"; + + $code.=" mov $t0,$s[1]\n" if ($i==3); + $code.=" mov $t1,$s[2]\n" if ($i==3); + $code.=" mov $t2,$s[3]\n" if ($i==3); + $code.="\n"; +} + +sub enclast() +{ my ($i,@s)=@_; + my $tmp0=$acc0; + my $tmp1=$acc1; + my $tmp2=$acc2; + my $out=($t0,$t1,$t2,$s[0])[$i]; + + if ($i==3) { + $tmp0=$s[1]; + $tmp1=$s[2]; + $tmp2=$s[3]; + } + $code.=" movzb ".&lo($s[0]).",$out\n"; + $code.=" mov $s[2],$tmp1\n" if ($i!=3); + + $code.=" mov 2($sbox,$out,8),$out\n"; + $code.=" shr \$16,$tmp1\n"; + $code.=" mov $s[3],$tmp2\n" if ($i!=3); + + $code.=" and \$0x000000ff,$out\n"; + $code.=" movzb ".&hi($s[1]).",$tmp0\n"; + $code.=" movzb ".&lo($tmp1).",$tmp1\n"; + $code.=" shr \$24,$tmp2\n"; + + $code.=" mov 0($sbox,$tmp0,8),$tmp0\n"; + $code.=" mov 0($sbox,$tmp1,8),$tmp1\n"; + $code.=" mov 2($sbox,$tmp2,8),$tmp2\n"; + + $code.=" and \$0x0000ff00,$tmp0\n"; + $code.=" and \$0x00ff0000,$tmp1\n"; + $code.=" and \$0xff000000,$tmp2\n"; + + $code.=" xor $tmp0,$out\n"; + $code.=" mov $t0,$s[1]\n" if ($i==3); + $code.=" xor $tmp1,$out\n"; + $code.=" mov $t1,$s[2]\n" if ($i==3); + $code.=" xor $tmp2,$out\n"; + $code.=" mov $t2,$s[3]\n" if ($i==3); + $code.="\n"; +} + +$code.=<<___; +.type _x86_64_AES_encrypt,\@abi-omnipotent +.align 16 +_x86_64_AES_encrypt: + xor 0($key),$s0 # xor with key + xor 4($key),$s1 + xor 8($key),$s2 + xor 12($key),$s3 + + mov 240($key),$rnds # load key->rounds + sub \$1,$rnds + jmp .Lenc_loop +.align 16 +.Lenc_loop: +___ + if ($verticalspin) { &encvert(); } + else { &encstep(0,$s0,$s1,$s2,$s3); + &encstep(1,$s1,$s2,$s3,$s0); + &encstep(2,$s2,$s3,$s0,$s1); + &encstep(3,$s3,$s0,$s1,$s2); + } +$code.=<<___; + sub \$1,$rnds + jnz .Lenc_loop +___ + if ($verticalspin) { &enclastvert(); } + else { &enclast(0,$s0,$s1,$s2,$s3); + &enclast(1,$s1,$s2,$s3,$s0); + &enclast(2,$s2,$s3,$s0,$s1); + &enclast(3,$s3,$s0,$s1,$s2); + $code.=<<___; + xor 16+0($key),$s0 # xor with key + xor 16+4($key),$s1 + xor 16+8($key),$s2 + xor 16+12($key),$s3 +___ + } +$code.=<<___; + .byte 0xf3,0xc3 # rep ret +.size _x86_64_AES_encrypt,.-_x86_64_AES_encrypt +___ + +# it's possible to implement this by shifting tN by 8, filling least +# significant byte with byte load and finally bswap-ing at the end, +# but such partial register load kills Core 2... +sub enccompactvert() +{ my ($t3,$t4,$t5)=("%r8d","%r9d","%r13d"); + +$code.=<<___; + movzb `&lo("$s0")`,$t0 + movzb `&lo("$s1")`,$t1 + movzb `&lo("$s2")`,$t2 + movzb `&lo("$s3")`,$t3 + movzb `&hi("$s1")`,$acc0 + movzb `&hi("$s2")`,$acc1 + shr \$16,$s2 + movzb `&hi("$s3")`,$acc2 + movzb ($sbox,$t0,1),$t0 + movzb ($sbox,$t1,1),$t1 + movzb ($sbox,$t2,1),$t2 + movzb ($sbox,$t3,1),$t3 + + movzb ($sbox,$acc0,1),$t4 #$t0 + movzb `&hi("$s0")`,$acc0 + movzb ($sbox,$acc1,1),$t5 #$t1 + movzb `&lo("$s2")`,$acc1 + movzb ($sbox,$acc2,1),$acc2 #$t2 + movzb ($sbox,$acc0,1),$acc0 #$t3 + + shl \$8,$t4 + shr \$16,$s3 + shl \$8,$t5 + xor $t4,$t0 + shr \$16,$s0 + movzb `&lo("$s3")`,$t4 + shr \$16,$s1 + xor $t5,$t1 + shl \$8,$acc2 + movzb `&lo("$s0")`,$t5 + movzb ($sbox,$acc1,1),$acc1 #$t0 + xor $acc2,$t2 + + shl \$8,$acc0 + movzb `&lo("$s1")`,$acc2 + shl \$16,$acc1 + xor $acc0,$t3 + movzb ($sbox,$t4,1),$t4 #$t1 + movzb `&hi("$s3")`,$acc0 + movzb ($sbox,$t5,1),$t5 #$t2 + xor $acc1,$t0 + + shr \$8,$s2 + movzb `&hi("$s0")`,$acc1 + shl \$16,$t4 + shr \$8,$s1 + shl \$16,$t5 + xor $t4,$t1 + movzb ($sbox,$acc2,1),$acc2 #$t3 + movzb ($sbox,$acc0,1),$acc0 #$t0 + movzb ($sbox,$acc1,1),$acc1 #$t1 + movzb ($sbox,$s2,1),$s3 #$t3 + movzb ($sbox,$s1,1),$s2 #$t2 + + shl \$16,$acc2 + xor $t5,$t2 + shl \$24,$acc0 + xor $acc2,$t3 + shl \$24,$acc1 + xor $acc0,$t0 + shl \$24,$s3 + xor $acc1,$t1 + shl \$24,$s2 + mov $t0,$s0 + mov $t1,$s1 + xor $t2,$s2 + xor $t3,$s3 +___ +} + +sub enctransform_ref() +{ my $sn = shift; + my ($acc,$r2,$tmp)=("%r8d","%r9d","%r13d"); + +$code.=<<___; + mov $sn,$acc + and \$0x80808080,$acc + mov $acc,$tmp + shr \$7,$tmp + lea ($sn,$sn),$r2 + sub $tmp,$acc + and \$0xfefefefe,$r2 + and \$0x1b1b1b1b,$acc + mov $sn,$tmp + xor $acc,$r2 + + xor $r2,$sn + rol \$24,$sn + xor $r2,$sn + ror \$16,$tmp + xor $tmp,$sn + ror \$8,$tmp + xor $tmp,$sn +___ +} + +# unlike decrypt case it does not pay off to parallelize enctransform +sub enctransform() +{ my ($t3,$r20,$r21)=($acc2,"%r8d","%r9d"); + +$code.=<<___; + mov \$0x80808080,$t0 + mov \$0x80808080,$t1 + and $s0,$t0 + and $s1,$t1 + mov $t0,$acc0 + mov $t1,$acc1 + shr \$7,$t0 + lea ($s0,$s0),$r20 + shr \$7,$t1 + lea ($s1,$s1),$r21 + sub $t0,$acc0 + sub $t1,$acc1 + and \$0xfefefefe,$r20 + and \$0xfefefefe,$r21 + and \$0x1b1b1b1b,$acc0 + and \$0x1b1b1b1b,$acc1 + mov $s0,$t0 + mov $s1,$t1 + xor $acc0,$r20 + xor $acc1,$r21 + + xor $r20,$s0 + xor $r21,$s1 + mov \$0x80808080,$t2 + rol \$24,$s0 + mov \$0x80808080,$t3 + rol \$24,$s1 + and $s2,$t2 + and $s3,$t3 + xor $r20,$s0 + xor $r21,$s1 + mov $t2,$acc0 + ror \$16,$t0 + mov $t3,$acc1 + ror \$16,$t1 + lea ($s2,$s2),$r20 + shr \$7,$t2 + xor $t0,$s0 + shr \$7,$t3 + xor $t1,$s1 + ror \$8,$t0 + lea ($s3,$s3),$r21 + ror \$8,$t1 + sub $t2,$acc0 + sub $t3,$acc1 + xor $t0,$s0 + xor $t1,$s1 + + and \$0xfefefefe,$r20 + and \$0xfefefefe,$r21 + and \$0x1b1b1b1b,$acc0 + and \$0x1b1b1b1b,$acc1 + mov $s2,$t2 + mov $s3,$t3 + xor $acc0,$r20 + xor $acc1,$r21 + + ror \$16,$t2 + xor $r20,$s2 + ror \$16,$t3 + xor $r21,$s3 + rol \$24,$s2 + mov 0($sbox),$acc0 # prefetch Te4 + rol \$24,$s3 + xor $r20,$s2 + mov 64($sbox),$acc1 + xor $r21,$s3 + mov 128($sbox),$r20 + xor $t2,$s2 + ror \$8,$t2 + xor $t3,$s3 + ror \$8,$t3 + xor $t2,$s2 + mov 192($sbox),$r21 + xor $t3,$s3 +___ +} + +$code.=<<___; +.type _x86_64_AES_encrypt_compact,\@abi-omnipotent +.align 16 +_x86_64_AES_encrypt_compact: + lea 128($sbox),$inp # size optimization + mov 0-128($inp),$acc1 # prefetch Te4 + mov 32-128($inp),$acc2 + mov 64-128($inp),$t0 + mov 96-128($inp),$t1 + mov 128-128($inp),$acc1 + mov 160-128($inp),$acc2 + mov 192-128($inp),$t0 + mov 224-128($inp),$t1 + jmp .Lenc_loop_compact +.align 16 +.Lenc_loop_compact: + xor 0($key),$s0 # xor with key + xor 4($key),$s1 + xor 8($key),$s2 + xor 12($key),$s3 + lea 16($key),$key +___ + &enccompactvert(); +$code.=<<___; + cmp 16(%rsp),$key + je .Lenc_compact_done +___ + &enctransform(); +$code.=<<___; + jmp .Lenc_loop_compact +.align 16 +.Lenc_compact_done: + xor 0($key),$s0 + xor 4($key),$s1 + xor 8($key),$s2 + xor 12($key),$s3 + .byte 0xf3,0xc3 # rep ret +.size _x86_64_AES_encrypt_compact,.-_x86_64_AES_encrypt_compact +___ + +# void AES_encrypt (const void *inp,void *out,const AES_KEY *key); +$code.=<<___; +.globl AES_encrypt +.type AES_encrypt,\@function,3 +.align 16 +.globl asm_AES_encrypt +.hidden asm_AES_encrypt +asm_AES_encrypt: +AES_encrypt: + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + + # allocate frame "above" key schedule + mov %rsp,%r10 + lea -63(%rdx),%rcx # %rdx is key argument + and \$-64,%rsp + sub %rsp,%rcx + neg %rcx + and \$0x3c0,%rcx + sub %rcx,%rsp + sub \$32,%rsp + + mov %rsi,16(%rsp) # save out + mov %r10,24(%rsp) # save real stack pointer +.Lenc_prologue: + + mov %rdx,$key + mov 240($key),$rnds # load rounds + + mov 0(%rdi),$s0 # load input vector + mov 4(%rdi),$s1 + mov 8(%rdi),$s2 + mov 12(%rdi),$s3 + + shl \$4,$rnds + lea ($key,$rnds),%rbp + mov $key,(%rsp) # key schedule + mov %rbp,8(%rsp) # end of key schedule + + # pick Te4 copy which can't "overlap" with stack frame or key schedule + lea .LAES_Te+2048(%rip),$sbox + lea 768(%rsp),%rbp + sub $sbox,%rbp + and \$0x300,%rbp + lea ($sbox,%rbp),$sbox + + call _x86_64_AES_encrypt_compact + + mov 16(%rsp),$out # restore out + mov 24(%rsp),%rsi # restore saved stack pointer + mov $s0,0($out) # write output vector + mov $s1,4($out) + mov $s2,8($out) + mov $s3,12($out) + + mov (%rsi),%r15 + mov 8(%rsi),%r14 + mov 16(%rsi),%r13 + mov 24(%rsi),%r12 + mov 32(%rsi),%rbp + mov 40(%rsi),%rbx + lea 48(%rsi),%rsp +.Lenc_epilogue: + ret +.size AES_encrypt,.-AES_encrypt +___ + +#------------------------------------------------------------------# + +sub decvert() +{ my $t3="%r8d"; # zaps $inp! + +$code.=<<___; + # favor 3-way issue Opteron pipeline... + movzb `&lo("$s0")`,$acc0 + movzb `&lo("$s1")`,$acc1 + movzb `&lo("$s2")`,$acc2 + mov 0($sbox,$acc0,8),$t0 + mov 0($sbox,$acc1,8),$t1 + mov 0($sbox,$acc2,8),$t2 + + movzb `&hi("$s3")`,$acc0 + movzb `&hi("$s0")`,$acc1 + movzb `&lo("$s3")`,$acc2 + xor 3($sbox,$acc0,8),$t0 + xor 3($sbox,$acc1,8),$t1 + mov 0($sbox,$acc2,8),$t3 + + movzb `&hi("$s1")`,$acc0 + shr \$16,$s0 + movzb `&hi("$s2")`,$acc2 + xor 3($sbox,$acc0,8),$t2 + shr \$16,$s3 + xor 3($sbox,$acc2,8),$t3 + + shr \$16,$s1 + lea 16($key),$key + shr \$16,$s2 + + movzb `&lo("$s2")`,$acc0 + movzb `&lo("$s3")`,$acc1 + movzb `&lo("$s0")`,$acc2 + xor 2($sbox,$acc0,8),$t0 + xor 2($sbox,$acc1,8),$t1 + xor 2($sbox,$acc2,8),$t2 + + movzb `&hi("$s1")`,$acc0 + movzb `&hi("$s2")`,$acc1 + movzb `&lo("$s1")`,$acc2 + xor 1($sbox,$acc0,8),$t0 + xor 1($sbox,$acc1,8),$t1 + xor 2($sbox,$acc2,8),$t3 + + movzb `&hi("$s3")`,$acc0 + mov 12($key),$s3 + movzb `&hi("$s0")`,$acc2 + xor 1($sbox,$acc0,8),$t2 + mov 0($key),$s0 + xor 1($sbox,$acc2,8),$t3 + + xor $t0,$s0 + mov 4($key),$s1 + mov 8($key),$s2 + xor $t2,$s2 + xor $t1,$s1 + xor $t3,$s3 +___ +} + +sub declastvert() +{ my $t3="%r8d"; # zaps $inp! + +$code.=<<___; + lea 2048($sbox),$sbox # size optimization + movzb `&lo("$s0")`,$acc0 + movzb `&lo("$s1")`,$acc1 + movzb `&lo("$s2")`,$acc2 + movzb ($sbox,$acc0,1),$t0 + movzb ($sbox,$acc1,1),$t1 + movzb ($sbox,$acc2,1),$t2 + + movzb `&lo("$s3")`,$acc0 + movzb `&hi("$s3")`,$acc1 + movzb `&hi("$s0")`,$acc2 + movzb ($sbox,$acc0,1),$t3 + movzb ($sbox,$acc1,1),$acc1 #$t0 + movzb ($sbox,$acc2,1),$acc2 #$t1 + + shl \$8,$acc1 + shl \$8,$acc2 + + xor $acc1,$t0 + xor $acc2,$t1 + shr \$16,$s3 + + movzb `&hi("$s1")`,$acc0 + movzb `&hi("$s2")`,$acc1 + shr \$16,$s0 + movzb ($sbox,$acc0,1),$acc0 #$t2 + movzb ($sbox,$acc1,1),$acc1 #$t3 + + shl \$8,$acc0 + shl \$8,$acc1 + shr \$16,$s1 + xor $acc0,$t2 + xor $acc1,$t3 + shr \$16,$s2 + + movzb `&lo("$s2")`,$acc0 + movzb `&lo("$s3")`,$acc1 + movzb `&lo("$s0")`,$acc2 + movzb ($sbox,$acc0,1),$acc0 #$t0 + movzb ($sbox,$acc1,1),$acc1 #$t1 + movzb ($sbox,$acc2,1),$acc2 #$t2 + + shl \$16,$acc0 + shl \$16,$acc1 + shl \$16,$acc2 + + xor $acc0,$t0 + xor $acc1,$t1 + xor $acc2,$t2 + + movzb `&lo("$s1")`,$acc0 + movzb `&hi("$s1")`,$acc1 + movzb `&hi("$s2")`,$acc2 + movzb ($sbox,$acc0,1),$acc0 #$t3 + movzb ($sbox,$acc1,1),$acc1 #$t0 + movzb ($sbox,$acc2,1),$acc2 #$t1 + + shl \$16,$acc0 + shl \$24,$acc1 + shl \$24,$acc2 + + xor $acc0,$t3 + xor $acc1,$t0 + xor $acc2,$t1 + + movzb `&hi("$s3")`,$acc0 + movzb `&hi("$s0")`,$acc1 + mov 16+12($key),$s3 + movzb ($sbox,$acc0,1),$acc0 #$t2 + movzb ($sbox,$acc1,1),$acc1 #$t3 + mov 16+0($key),$s0 + + shl \$24,$acc0 + shl \$24,$acc1 + + xor $acc0,$t2 + xor $acc1,$t3 + + mov 16+4($key),$s1 + mov 16+8($key),$s2 + lea -2048($sbox),$sbox + xor $t0,$s0 + xor $t1,$s1 + xor $t2,$s2 + xor $t3,$s3 +___ +} + +sub decstep() +{ my ($i,@s) = @_; + my $tmp0=$acc0; + my $tmp1=$acc1; + my $tmp2=$acc2; + my $out=($t0,$t1,$t2,$s[0])[$i]; + + $code.=" mov $s[0],$out\n" if ($i!=3); + $tmp1=$s[2] if ($i==3); + $code.=" mov $s[2],$tmp1\n" if ($i!=3); + $code.=" and \$0xFF,$out\n"; + + $code.=" mov 0($sbox,$out,8),$out\n"; + $code.=" shr \$16,$tmp1\n"; + $tmp2=$s[3] if ($i==3); + $code.=" mov $s[3],$tmp2\n" if ($i!=3); + + $tmp0=$s[1] if ($i==3); + $code.=" movzb ".&hi($s[1]).",$tmp0\n"; + $code.=" and \$0xFF,$tmp1\n"; + $code.=" shr \$24,$tmp2\n"; + + $code.=" xor 3($sbox,$tmp0,8),$out\n"; + $code.=" xor 2($sbox,$tmp1,8),$out\n"; + $code.=" xor 1($sbox,$tmp2,8),$out\n"; + + $code.=" mov $t2,$s[1]\n" if ($i==3); + $code.=" mov $t1,$s[2]\n" if ($i==3); + $code.=" mov $t0,$s[3]\n" if ($i==3); + $code.="\n"; +} + +sub declast() +{ my ($i,@s)=@_; + my $tmp0=$acc0; + my $tmp1=$acc1; + my $tmp2=$acc2; + my $out=($t0,$t1,$t2,$s[0])[$i]; + + $code.=" mov $s[0],$out\n" if ($i!=3); + $tmp1=$s[2] if ($i==3); + $code.=" mov $s[2],$tmp1\n" if ($i!=3); + $code.=" and \$0xFF,$out\n"; + + $code.=" movzb 2048($sbox,$out,1),$out\n"; + $code.=" shr \$16,$tmp1\n"; + $tmp2=$s[3] if ($i==3); + $code.=" mov $s[3],$tmp2\n" if ($i!=3); + + $tmp0=$s[1] if ($i==3); + $code.=" movzb ".&hi($s[1]).",$tmp0\n"; + $code.=" and \$0xFF,$tmp1\n"; + $code.=" shr \$24,$tmp2\n"; + + $code.=" movzb 2048($sbox,$tmp0,1),$tmp0\n"; + $code.=" movzb 2048($sbox,$tmp1,1),$tmp1\n"; + $code.=" movzb 2048($sbox,$tmp2,1),$tmp2\n"; + + $code.=" shl \$8,$tmp0\n"; + $code.=" shl \$16,$tmp1\n"; + $code.=" shl \$24,$tmp2\n"; + + $code.=" xor $tmp0,$out\n"; + $code.=" mov $t2,$s[1]\n" if ($i==3); + $code.=" xor $tmp1,$out\n"; + $code.=" mov $t1,$s[2]\n" if ($i==3); + $code.=" xor $tmp2,$out\n"; + $code.=" mov $t0,$s[3]\n" if ($i==3); + $code.="\n"; +} + +$code.=<<___; +.type _x86_64_AES_decrypt,\@abi-omnipotent +.align 16 +_x86_64_AES_decrypt: + xor 0($key),$s0 # xor with key + xor 4($key),$s1 + xor 8($key),$s2 + xor 12($key),$s3 + + mov 240($key),$rnds # load key->rounds + sub \$1,$rnds + jmp .Ldec_loop +.align 16 +.Ldec_loop: +___ + if ($verticalspin) { &decvert(); } + else { &decstep(0,$s0,$s3,$s2,$s1); + &decstep(1,$s1,$s0,$s3,$s2); + &decstep(2,$s2,$s1,$s0,$s3); + &decstep(3,$s3,$s2,$s1,$s0); + $code.=<<___; + lea 16($key),$key + xor 0($key),$s0 # xor with key + xor 4($key),$s1 + xor 8($key),$s2 + xor 12($key),$s3 +___ + } +$code.=<<___; + sub \$1,$rnds + jnz .Ldec_loop +___ + if ($verticalspin) { &declastvert(); } + else { &declast(0,$s0,$s3,$s2,$s1); + &declast(1,$s1,$s0,$s3,$s2); + &declast(2,$s2,$s1,$s0,$s3); + &declast(3,$s3,$s2,$s1,$s0); + $code.=<<___; + xor 16+0($key),$s0 # xor with key + xor 16+4($key),$s1 + xor 16+8($key),$s2 + xor 16+12($key),$s3 +___ + } +$code.=<<___; + .byte 0xf3,0xc3 # rep ret +.size _x86_64_AES_decrypt,.-_x86_64_AES_decrypt +___ + +sub deccompactvert() +{ my ($t3,$t4,$t5)=("%r8d","%r9d","%r13d"); + +$code.=<<___; + movzb `&lo("$s0")`,$t0 + movzb `&lo("$s1")`,$t1 + movzb `&lo("$s2")`,$t2 + movzb `&lo("$s3")`,$t3 + movzb `&hi("$s3")`,$acc0 + movzb `&hi("$s0")`,$acc1 + shr \$16,$s3 + movzb `&hi("$s1")`,$acc2 + movzb ($sbox,$t0,1),$t0 + movzb ($sbox,$t1,1),$t1 + movzb ($sbox,$t2,1),$t2 + movzb ($sbox,$t3,1),$t3 + + movzb ($sbox,$acc0,1),$t4 #$t0 + movzb `&hi("$s2")`,$acc0 + movzb ($sbox,$acc1,1),$t5 #$t1 + movzb ($sbox,$acc2,1),$acc2 #$t2 + movzb ($sbox,$acc0,1),$acc0 #$t3 + + shr \$16,$s2 + shl \$8,$t5 + shl \$8,$t4 + movzb `&lo("$s2")`,$acc1 + shr \$16,$s0 + xor $t4,$t0 + shr \$16,$s1 + movzb `&lo("$s3")`,$t4 + + shl \$8,$acc2 + xor $t5,$t1 + shl \$8,$acc0 + movzb `&lo("$s0")`,$t5 + movzb ($sbox,$acc1,1),$acc1 #$t0 + xor $acc2,$t2 + movzb `&lo("$s1")`,$acc2 + + shl \$16,$acc1 + xor $acc0,$t3 + movzb ($sbox,$t4,1),$t4 #$t1 + movzb `&hi("$s1")`,$acc0 + movzb ($sbox,$acc2,1),$acc2 #$t3 + xor $acc1,$t0 + movzb ($sbox,$t5,1),$t5 #$t2 + movzb `&hi("$s2")`,$acc1 + + shl \$16,$acc2 + shl \$16,$t4 + shl \$16,$t5 + xor $acc2,$t3 + movzb `&hi("$s3")`,$acc2 + xor $t4,$t1 + shr \$8,$s0 + xor $t5,$t2 + + movzb ($sbox,$acc0,1),$acc0 #$t0 + movzb ($sbox,$acc1,1),$s1 #$t1 + movzb ($sbox,$acc2,1),$s2 #$t2 + movzb ($sbox,$s0,1),$s3 #$t3 + + mov $t0,$s0 + shl \$24,$acc0 + shl \$24,$s1 + shl \$24,$s2 + xor $acc0,$s0 + shl \$24,$s3 + xor $t1,$s1 + xor $t2,$s2 + xor $t3,$s3 +___ +} + +# parallelized version! input is pair of 64-bit values: %rax=s1.s0 +# and %rcx=s3.s2, output is four 32-bit values in %eax=s0, %ebx=s1, +# %ecx=s2 and %edx=s3. +sub dectransform() +{ my ($tp10,$tp20,$tp40,$tp80,$acc0)=("%rax","%r8", "%r9", "%r10","%rbx"); + my ($tp18,$tp28,$tp48,$tp88,$acc8)=("%rcx","%r11","%r12","%r13","%rdx"); + my $prefetch = shift; + +$code.=<<___; + mov $mask80,$tp40 + mov $mask80,$tp48 + and $tp10,$tp40 + and $tp18,$tp48 + mov $tp40,$acc0 + mov $tp48,$acc8 + shr \$7,$tp40 + lea ($tp10,$tp10),$tp20 + shr \$7,$tp48 + lea ($tp18,$tp18),$tp28 + sub $tp40,$acc0 + sub $tp48,$acc8 + and $maskfe,$tp20 + and $maskfe,$tp28 + and $mask1b,$acc0 + and $mask1b,$acc8 + xor $acc0,$tp20 + xor $acc8,$tp28 + mov $mask80,$tp80 + mov $mask80,$tp88 + + and $tp20,$tp80 + and $tp28,$tp88 + mov $tp80,$acc0 + mov $tp88,$acc8 + shr \$7,$tp80 + lea ($tp20,$tp20),$tp40 + shr \$7,$tp88 + lea ($tp28,$tp28),$tp48 + sub $tp80,$acc0 + sub $tp88,$acc8 + and $maskfe,$tp40 + and $maskfe,$tp48 + and $mask1b,$acc0 + and $mask1b,$acc8 + xor $acc0,$tp40 + xor $acc8,$tp48 + mov $mask80,$tp80 + mov $mask80,$tp88 + + and $tp40,$tp80 + and $tp48,$tp88 + mov $tp80,$acc0 + mov $tp88,$acc8 + shr \$7,$tp80 + xor $tp10,$tp20 # tp2^=tp1 + shr \$7,$tp88 + xor $tp18,$tp28 # tp2^=tp1 + sub $tp80,$acc0 + sub $tp88,$acc8 + lea ($tp40,$tp40),$tp80 + lea ($tp48,$tp48),$tp88 + xor $tp10,$tp40 # tp4^=tp1 + xor $tp18,$tp48 # tp4^=tp1 + and $maskfe,$tp80 + and $maskfe,$tp88 + and $mask1b,$acc0 + and $mask1b,$acc8 + xor $acc0,$tp80 + xor $acc8,$tp88 + + xor $tp80,$tp10 # tp1^=tp8 + xor $tp88,$tp18 # tp1^=tp8 + xor $tp80,$tp20 # tp2^tp1^=tp8 + xor $tp88,$tp28 # tp2^tp1^=tp8 + mov $tp10,$acc0 + mov $tp18,$acc8 + xor $tp80,$tp40 # tp4^tp1^=tp8 + shr \$32,$acc0 + xor $tp88,$tp48 # tp4^tp1^=tp8 + shr \$32,$acc8 + xor $tp20,$tp80 # tp8^=tp8^tp2^tp1=tp2^tp1 + rol \$8,`&LO("$tp10")` # ROTATE(tp1^tp8,8) + xor $tp28,$tp88 # tp8^=tp8^tp2^tp1=tp2^tp1 + rol \$8,`&LO("$tp18")` # ROTATE(tp1^tp8,8) + xor $tp40,$tp80 # tp2^tp1^=tp8^tp4^tp1=tp8^tp4^tp2 + rol \$8,`&LO("$acc0")` # ROTATE(tp1^tp8,8) + xor $tp48,$tp88 # tp2^tp1^=tp8^tp4^tp1=tp8^tp4^tp2 + + rol \$8,`&LO("$acc8")` # ROTATE(tp1^tp8,8) + xor `&LO("$tp80")`,`&LO("$tp10")` + shr \$32,$tp80 + xor `&LO("$tp88")`,`&LO("$tp18")` + shr \$32,$tp88 + xor `&LO("$tp80")`,`&LO("$acc0")` + xor `&LO("$tp88")`,`&LO("$acc8")` + + mov $tp20,$tp80 + rol \$24,`&LO("$tp20")` # ROTATE(tp2^tp1^tp8,24) + mov $tp28,$tp88 + rol \$24,`&LO("$tp28")` # ROTATE(tp2^tp1^tp8,24) + shr \$32,$tp80 + xor `&LO("$tp20")`,`&LO("$tp10")` + shr \$32,$tp88 + xor `&LO("$tp28")`,`&LO("$tp18")` + rol \$24,`&LO("$tp80")` # ROTATE(tp2^tp1^tp8,24) + mov $tp40,$tp20 + rol \$24,`&LO("$tp88")` # ROTATE(tp2^tp1^tp8,24) + mov $tp48,$tp28 + shr \$32,$tp20 + xor `&LO("$tp80")`,`&LO("$acc0")` + shr \$32,$tp28 + xor `&LO("$tp88")`,`&LO("$acc8")` + + `"mov 0($sbox),$mask80" if ($prefetch)` + rol \$16,`&LO("$tp40")` # ROTATE(tp4^tp1^tp8,16) + `"mov 64($sbox),$maskfe" if ($prefetch)` + rol \$16,`&LO("$tp48")` # ROTATE(tp4^tp1^tp8,16) + `"mov 128($sbox),$mask1b" if ($prefetch)` + rol \$16,`&LO("$tp20")` # ROTATE(tp4^tp1^tp8,16) + `"mov 192($sbox),$tp80" if ($prefetch)` + xor `&LO("$tp40")`,`&LO("$tp10")` + rol \$16,`&LO("$tp28")` # ROTATE(tp4^tp1^tp8,16) + xor `&LO("$tp48")`,`&LO("$tp18")` + `"mov 256($sbox),$tp88" if ($prefetch)` + xor `&LO("$tp20")`,`&LO("$acc0")` + xor `&LO("$tp28")`,`&LO("$acc8")` +___ +} + +$code.=<<___; +.type _x86_64_AES_decrypt_compact,\@abi-omnipotent +.align 16 +_x86_64_AES_decrypt_compact: + lea 128($sbox),$inp # size optimization + mov 0-128($inp),$acc1 # prefetch Td4 + mov 32-128($inp),$acc2 + mov 64-128($inp),$t0 + mov 96-128($inp),$t1 + mov 128-128($inp),$acc1 + mov 160-128($inp),$acc2 + mov 192-128($inp),$t0 + mov 224-128($inp),$t1 + jmp .Ldec_loop_compact + +.align 16 +.Ldec_loop_compact: + xor 0($key),$s0 # xor with key + xor 4($key),$s1 + xor 8($key),$s2 + xor 12($key),$s3 + lea 16($key),$key +___ + &deccompactvert(); +$code.=<<___; + cmp 16(%rsp),$key + je .Ldec_compact_done + + mov 256+0($sbox),$mask80 + shl \$32,%rbx + shl \$32,%rdx + mov 256+8($sbox),$maskfe + or %rbx,%rax + or %rdx,%rcx + mov 256+16($sbox),$mask1b +___ + &dectransform(1); +$code.=<<___; + jmp .Ldec_loop_compact +.align 16 +.Ldec_compact_done: + xor 0($key),$s0 + xor 4($key),$s1 + xor 8($key),$s2 + xor 12($key),$s3 + .byte 0xf3,0xc3 # rep ret +.size _x86_64_AES_decrypt_compact,.-_x86_64_AES_decrypt_compact +___ + +# void AES_decrypt (const void *inp,void *out,const AES_KEY *key); +$code.=<<___; +.globl AES_decrypt +.type AES_decrypt,\@function,3 +.align 16 +.globl asm_AES_decrypt +.hidden asm_AES_decrypt +asm_AES_decrypt: +AES_decrypt: + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + + # allocate frame "above" key schedule + mov %rsp,%r10 + lea -63(%rdx),%rcx # %rdx is key argument + and \$-64,%rsp + sub %rsp,%rcx + neg %rcx + and \$0x3c0,%rcx + sub %rcx,%rsp + sub \$32,%rsp + + mov %rsi,16(%rsp) # save out + mov %r10,24(%rsp) # save real stack pointer +.Ldec_prologue: + + mov %rdx,$key + mov 240($key),$rnds # load rounds + + mov 0(%rdi),$s0 # load input vector + mov 4(%rdi),$s1 + mov 8(%rdi),$s2 + mov 12(%rdi),$s3 + + shl \$4,$rnds + lea ($key,$rnds),%rbp + mov $key,(%rsp) # key schedule + mov %rbp,8(%rsp) # end of key schedule + + # pick Td4 copy which can't "overlap" with stack frame or key schedule + lea .LAES_Td+2048(%rip),$sbox + lea 768(%rsp),%rbp + sub $sbox,%rbp + and \$0x300,%rbp + lea ($sbox,%rbp),$sbox + shr \$3,%rbp # recall "magic" constants! + add %rbp,$sbox + + call _x86_64_AES_decrypt_compact + + mov 16(%rsp),$out # restore out + mov 24(%rsp),%rsi # restore saved stack pointer + mov $s0,0($out) # write output vector + mov $s1,4($out) + mov $s2,8($out) + mov $s3,12($out) + + mov (%rsi),%r15 + mov 8(%rsi),%r14 + mov 16(%rsi),%r13 + mov 24(%rsi),%r12 + mov 32(%rsi),%rbp + mov 40(%rsi),%rbx + lea 48(%rsi),%rsp +.Ldec_epilogue: + ret +.size AES_decrypt,.-AES_decrypt +___ +#------------------------------------------------------------------# + +sub enckey() +{ +$code.=<<___; + movz %dl,%esi # rk[i]>>0 + movzb -128(%rbp,%rsi),%ebx + movz %dh,%esi # rk[i]>>8 + shl \$24,%ebx + xor %ebx,%eax + + movzb -128(%rbp,%rsi),%ebx + shr \$16,%edx + movz %dl,%esi # rk[i]>>16 + xor %ebx,%eax + + movzb -128(%rbp,%rsi),%ebx + movz %dh,%esi # rk[i]>>24 + shl \$8,%ebx + xor %ebx,%eax + + movzb -128(%rbp,%rsi),%ebx + shl \$16,%ebx + xor %ebx,%eax + + xor 1024-128(%rbp,%rcx,4),%eax # rcon +___ +} + +# int AES_set_encrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key) +$code.=<<___; +.globl AES_set_encrypt_key +.type AES_set_encrypt_key,\@function,3 +.align 16 +AES_set_encrypt_key: + push %rbx + push %rbp + push %r12 # redundant, but allows to share + push %r13 # exception handler... + push %r14 + push %r15 + sub \$8,%rsp +.Lenc_key_prologue: + + call _x86_64_AES_set_encrypt_key + + mov 40(%rsp),%rbp + mov 48(%rsp),%rbx + add \$56,%rsp +.Lenc_key_epilogue: + ret +.size AES_set_encrypt_key,.-AES_set_encrypt_key + +.type _x86_64_AES_set_encrypt_key,\@abi-omnipotent +.align 16 +_x86_64_AES_set_encrypt_key: + mov %esi,%ecx # %ecx=bits + mov %rdi,%rsi # %rsi=userKey + mov %rdx,%rdi # %rdi=key + + test \$-1,%rsi + jz .Lbadpointer + test \$-1,%rdi + jz .Lbadpointer + + lea .LAES_Te(%rip),%rbp + lea 2048+128(%rbp),%rbp + + # prefetch Te4 + mov 0-128(%rbp),%eax + mov 32-128(%rbp),%ebx + mov 64-128(%rbp),%r8d + mov 96-128(%rbp),%edx + mov 128-128(%rbp),%eax + mov 160-128(%rbp),%ebx + mov 192-128(%rbp),%r8d + mov 224-128(%rbp),%edx + + cmp \$128,%ecx + je .L10rounds + cmp \$192,%ecx + je .L12rounds + cmp \$256,%ecx + je .L14rounds + mov \$-2,%rax # invalid number of bits + jmp .Lexit + +.L10rounds: + mov 0(%rsi),%rax # copy first 4 dwords + mov 8(%rsi),%rdx + mov %rax,0(%rdi) + mov %rdx,8(%rdi) + + shr \$32,%rdx + xor %ecx,%ecx + jmp .L10shortcut +.align 4 +.L10loop: + mov 0(%rdi),%eax # rk[0] + mov 12(%rdi),%edx # rk[3] +.L10shortcut: +___ + &enckey (); +$code.=<<___; + mov %eax,16(%rdi) # rk[4] + xor 4(%rdi),%eax + mov %eax,20(%rdi) # rk[5] + xor 8(%rdi),%eax + mov %eax,24(%rdi) # rk[6] + xor 12(%rdi),%eax + mov %eax,28(%rdi) # rk[7] + add \$1,%ecx + lea 16(%rdi),%rdi + cmp \$10,%ecx + jl .L10loop + + movl \$10,80(%rdi) # setup number of rounds + xor %rax,%rax + jmp .Lexit + +.L12rounds: + mov 0(%rsi),%rax # copy first 6 dwords + mov 8(%rsi),%rbx + mov 16(%rsi),%rdx + mov %rax,0(%rdi) + mov %rbx,8(%rdi) + mov %rdx,16(%rdi) + + shr \$32,%rdx + xor %ecx,%ecx + jmp .L12shortcut +.align 4 +.L12loop: + mov 0(%rdi),%eax # rk[0] + mov 20(%rdi),%edx # rk[5] +.L12shortcut: +___ + &enckey (); +$code.=<<___; + mov %eax,24(%rdi) # rk[6] + xor 4(%rdi),%eax + mov %eax,28(%rdi) # rk[7] + xor 8(%rdi),%eax + mov %eax,32(%rdi) # rk[8] + xor 12(%rdi),%eax + mov %eax,36(%rdi) # rk[9] + + cmp \$7,%ecx + je .L12break + add \$1,%ecx + + xor 16(%rdi),%eax + mov %eax,40(%rdi) # rk[10] + xor 20(%rdi),%eax + mov %eax,44(%rdi) # rk[11] + + lea 24(%rdi),%rdi + jmp .L12loop +.L12break: + movl \$12,72(%rdi) # setup number of rounds + xor %rax,%rax + jmp .Lexit + +.L14rounds: + mov 0(%rsi),%rax # copy first 8 dwords + mov 8(%rsi),%rbx + mov 16(%rsi),%rcx + mov 24(%rsi),%rdx + mov %rax,0(%rdi) + mov %rbx,8(%rdi) + mov %rcx,16(%rdi) + mov %rdx,24(%rdi) + + shr \$32,%rdx + xor %ecx,%ecx + jmp .L14shortcut +.align 4 +.L14loop: + mov 0(%rdi),%eax # rk[0] + mov 28(%rdi),%edx # rk[4] +.L14shortcut: +___ + &enckey (); +$code.=<<___; + mov %eax,32(%rdi) # rk[8] + xor 4(%rdi),%eax + mov %eax,36(%rdi) # rk[9] + xor 8(%rdi),%eax + mov %eax,40(%rdi) # rk[10] + xor 12(%rdi),%eax + mov %eax,44(%rdi) # rk[11] + + cmp \$6,%ecx + je .L14break + add \$1,%ecx + + mov %eax,%edx + mov 16(%rdi),%eax # rk[4] + movz %dl,%esi # rk[11]>>0 + movzb -128(%rbp,%rsi),%ebx + movz %dh,%esi # rk[11]>>8 + xor %ebx,%eax + + movzb -128(%rbp,%rsi),%ebx + shr \$16,%edx + shl \$8,%ebx + movz %dl,%esi # rk[11]>>16 + xor %ebx,%eax + + movzb -128(%rbp,%rsi),%ebx + movz %dh,%esi # rk[11]>>24 + shl \$16,%ebx + xor %ebx,%eax + + movzb -128(%rbp,%rsi),%ebx + shl \$24,%ebx + xor %ebx,%eax + + mov %eax,48(%rdi) # rk[12] + xor 20(%rdi),%eax + mov %eax,52(%rdi) # rk[13] + xor 24(%rdi),%eax + mov %eax,56(%rdi) # rk[14] + xor 28(%rdi),%eax + mov %eax,60(%rdi) # rk[15] + + lea 32(%rdi),%rdi + jmp .L14loop +.L14break: + movl \$14,48(%rdi) # setup number of rounds + xor %rax,%rax + jmp .Lexit + +.Lbadpointer: + mov \$-1,%rax +.Lexit: + .byte 0xf3,0xc3 # rep ret +.size _x86_64_AES_set_encrypt_key,.-_x86_64_AES_set_encrypt_key +___ + +sub deckey_ref() +{ my ($i,$ptr,$te,$td) = @_; + my ($tp1,$tp2,$tp4,$tp8,$acc)=("%eax","%ebx","%edi","%edx","%r8d"); +$code.=<<___; + mov $i($ptr),$tp1 + mov $tp1,$acc + and \$0x80808080,$acc + mov $acc,$tp4 + shr \$7,$tp4 + lea 0($tp1,$tp1),$tp2 + sub $tp4,$acc + and \$0xfefefefe,$tp2 + and \$0x1b1b1b1b,$acc + xor $tp2,$acc + mov $acc,$tp2 + + and \$0x80808080,$acc + mov $acc,$tp8 + shr \$7,$tp8 + lea 0($tp2,$tp2),$tp4 + sub $tp8,$acc + and \$0xfefefefe,$tp4 + and \$0x1b1b1b1b,$acc + xor $tp1,$tp2 # tp2^tp1 + xor $tp4,$acc + mov $acc,$tp4 + + and \$0x80808080,$acc + mov $acc,$tp8 + shr \$7,$tp8 + sub $tp8,$acc + lea 0($tp4,$tp4),$tp8 + xor $tp1,$tp4 # tp4^tp1 + and \$0xfefefefe,$tp8 + and \$0x1b1b1b1b,$acc + xor $acc,$tp8 + + xor $tp8,$tp1 # tp1^tp8 + rol \$8,$tp1 # ROTATE(tp1^tp8,8) + xor $tp8,$tp2 # tp2^tp1^tp8 + xor $tp8,$tp4 # tp4^tp1^tp8 + xor $tp2,$tp8 + xor $tp4,$tp8 # tp8^(tp8^tp4^tp1)^(tp8^tp2^tp1)=tp8^tp4^tp2 + + xor $tp8,$tp1 + rol \$24,$tp2 # ROTATE(tp2^tp1^tp8,24) + xor $tp2,$tp1 + rol \$16,$tp4 # ROTATE(tp4^tp1^tp8,16) + xor $tp4,$tp1 + + mov $tp1,$i($ptr) +___ +} + +# int AES_set_decrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key) +$code.=<<___; +.globl AES_set_decrypt_key +.type AES_set_decrypt_key,\@function,3 +.align 16 +AES_set_decrypt_key: + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + push %rdx # save key schedule +.Ldec_key_prologue: + + call _x86_64_AES_set_encrypt_key + mov (%rsp),%r8 # restore key schedule + cmp \$0,%eax + jne .Labort + + mov 240(%r8),%r14d # pull number of rounds + xor %rdi,%rdi + lea (%rdi,%r14d,4),%rcx + mov %r8,%rsi + lea (%r8,%rcx,4),%rdi # pointer to last chunk +.align 4 +.Linvert: + mov 0(%rsi),%rax + mov 8(%rsi),%rbx + mov 0(%rdi),%rcx + mov 8(%rdi),%rdx + mov %rax,0(%rdi) + mov %rbx,8(%rdi) + mov %rcx,0(%rsi) + mov %rdx,8(%rsi) + lea 16(%rsi),%rsi + lea -16(%rdi),%rdi + cmp %rsi,%rdi + jne .Linvert + + lea .LAES_Te+2048+1024(%rip),%rax # rcon + + mov 40(%rax),$mask80 + mov 48(%rax),$maskfe + mov 56(%rax),$mask1b + + mov %r8,$key + sub \$1,%r14d +.align 4 +.Lpermute: + lea 16($key),$key + mov 0($key),%rax + mov 8($key),%rcx +___ + &dectransform (); +$code.=<<___; + mov %eax,0($key) + mov %ebx,4($key) + mov %ecx,8($key) + mov %edx,12($key) + sub \$1,%r14d + jnz .Lpermute + + xor %rax,%rax +.Labort: + mov 8(%rsp),%r15 + mov 16(%rsp),%r14 + mov 24(%rsp),%r13 + mov 32(%rsp),%r12 + mov 40(%rsp),%rbp + mov 48(%rsp),%rbx + add \$56,%rsp +.Ldec_key_epilogue: + ret +.size AES_set_decrypt_key,.-AES_set_decrypt_key +___ + +# void AES_cbc_encrypt (const void char *inp, unsigned char *out, +# size_t length, const AES_KEY *key, +# unsigned char *ivp,const int enc); +{ +# stack frame layout +# -8(%rsp) return address +my $keyp="0(%rsp)"; # one to pass as $key +my $keyend="8(%rsp)"; # &(keyp->rd_key[4*keyp->rounds]) +my $_rsp="16(%rsp)"; # saved %rsp +my $_inp="24(%rsp)"; # copy of 1st parameter, inp +my $_out="32(%rsp)"; # copy of 2nd parameter, out +my $_len="40(%rsp)"; # copy of 3rd parameter, length +my $_key="48(%rsp)"; # copy of 4th parameter, key +my $_ivp="56(%rsp)"; # copy of 5th parameter, ivp +my $ivec="64(%rsp)"; # ivec[16] +my $aes_key="80(%rsp)"; # copy of aes_key +my $mark="80+240(%rsp)"; # copy of aes_key->rounds + +$code.=<<___; +.globl AES_cbc_encrypt +.type AES_cbc_encrypt,\@function,6 +.align 16 +.extern OPENSSL_ia32cap_P +.globl asm_AES_cbc_encrypt +.hidden asm_AES_cbc_encrypt +asm_AES_cbc_encrypt: +AES_cbc_encrypt: + cmp \$0,%rdx # check length + je .Lcbc_epilogue + pushfq + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 +.Lcbc_prologue: + + cld + mov %r9d,%r9d # clear upper half of enc + + lea .LAES_Te(%rip),$sbox + cmp \$0,%r9 + jne .Lcbc_picked_te + lea .LAES_Td(%rip),$sbox +.Lcbc_picked_te: + + mov OPENSSL_ia32cap_P(%rip),%r10d + cmp \$$speed_limit,%rdx + jb .Lcbc_slow_prologue + test \$15,%rdx + jnz .Lcbc_slow_prologue + bt \$28,%r10d + jc .Lcbc_slow_prologue + + # allocate aligned stack frame... + lea -88-248(%rsp),$key + and \$-64,$key + + # ... and make sure it doesn't alias with AES_T[ed] modulo 4096 + mov $sbox,%r10 + lea 2304($sbox),%r11 + mov $key,%r12 + and \$0xFFF,%r10 # s = $sbox&0xfff + and \$0xFFF,%r11 # e = ($sbox+2048)&0xfff + and \$0xFFF,%r12 # p = %rsp&0xfff + + cmp %r11,%r12 # if (p=>e) %rsp =- (p-e); + jb .Lcbc_te_break_out + sub %r11,%r12 + sub %r12,$key + jmp .Lcbc_te_ok +.Lcbc_te_break_out: # else %rsp -= (p-s)&0xfff + framesz + sub %r10,%r12 + and \$0xFFF,%r12 + add \$320,%r12 + sub %r12,$key +.align 4 +.Lcbc_te_ok: + + xchg %rsp,$key + #add \$8,%rsp # reserve for return address! + mov $key,$_rsp # save %rsp +.Lcbc_fast_body: + mov %rdi,$_inp # save copy of inp + mov %rsi,$_out # save copy of out + mov %rdx,$_len # save copy of len + mov %rcx,$_key # save copy of key + mov %r8,$_ivp # save copy of ivp + movl \$0,$mark # copy of aes_key->rounds = 0; + mov %r8,%rbp # rearrange input arguments + mov %r9,%rbx + mov %rsi,$out + mov %rdi,$inp + mov %rcx,$key + + mov 240($key),%eax # key->rounds + # do we copy key schedule to stack? + mov $key,%r10 + sub $sbox,%r10 + and \$0xfff,%r10 + cmp \$2304,%r10 + jb .Lcbc_do_ecopy + cmp \$4096-248,%r10 + jb .Lcbc_skip_ecopy +.align 4 +.Lcbc_do_ecopy: + mov $key,%rsi + lea $aes_key,%rdi + lea $aes_key,$key + mov \$240/8,%ecx + .long 0x90A548F3 # rep movsq + mov %eax,(%rdi) # copy aes_key->rounds +.Lcbc_skip_ecopy: + mov $key,$keyp # save key pointer + + mov \$18,%ecx +.align 4 +.Lcbc_prefetch_te: + mov 0($sbox),%r10 + mov 32($sbox),%r11 + mov 64($sbox),%r12 + mov 96($sbox),%r13 + lea 128($sbox),$sbox + sub \$1,%ecx + jnz .Lcbc_prefetch_te + lea -2304($sbox),$sbox + + cmp \$0,%rbx + je .LFAST_DECRYPT + +#----------------------------- ENCRYPT -----------------------------# + mov 0(%rbp),$s0 # load iv + mov 4(%rbp),$s1 + mov 8(%rbp),$s2 + mov 12(%rbp),$s3 + +.align 4 +.Lcbc_fast_enc_loop: + xor 0($inp),$s0 + xor 4($inp),$s1 + xor 8($inp),$s2 + xor 12($inp),$s3 + mov $keyp,$key # restore key + mov $inp,$_inp # if ($verticalspin) save inp + + call _x86_64_AES_encrypt + + mov $_inp,$inp # if ($verticalspin) restore inp + mov $_len,%r10 + mov $s0,0($out) + mov $s1,4($out) + mov $s2,8($out) + mov $s3,12($out) + + lea 16($inp),$inp + lea 16($out),$out + sub \$16,%r10 + test \$-16,%r10 + mov %r10,$_len + jnz .Lcbc_fast_enc_loop + mov $_ivp,%rbp # restore ivp + mov $s0,0(%rbp) # save ivec + mov $s1,4(%rbp) + mov $s2,8(%rbp) + mov $s3,12(%rbp) + + jmp .Lcbc_fast_cleanup + +#----------------------------- DECRYPT -----------------------------# +.align 16 +.LFAST_DECRYPT: + cmp $inp,$out + je .Lcbc_fast_dec_in_place + + mov %rbp,$ivec +.align 4 +.Lcbc_fast_dec_loop: + mov 0($inp),$s0 # read input + mov 4($inp),$s1 + mov 8($inp),$s2 + mov 12($inp),$s3 + mov $keyp,$key # restore key + mov $inp,$_inp # if ($verticalspin) save inp + + call _x86_64_AES_decrypt + + mov $ivec,%rbp # load ivp + mov $_inp,$inp # if ($verticalspin) restore inp + mov $_len,%r10 # load len + xor 0(%rbp),$s0 # xor iv + xor 4(%rbp),$s1 + xor 8(%rbp),$s2 + xor 12(%rbp),$s3 + mov $inp,%rbp # current input, next iv + + sub \$16,%r10 + mov %r10,$_len # update len + mov %rbp,$ivec # update ivp + + mov $s0,0($out) # write output + mov $s1,4($out) + mov $s2,8($out) + mov $s3,12($out) + + lea 16($inp),$inp + lea 16($out),$out + jnz .Lcbc_fast_dec_loop + mov $_ivp,%r12 # load user ivp + mov 0(%rbp),%r10 # load iv + mov 8(%rbp),%r11 + mov %r10,0(%r12) # copy back to user + mov %r11,8(%r12) + jmp .Lcbc_fast_cleanup + +.align 16 +.Lcbc_fast_dec_in_place: + mov 0(%rbp),%r10 # copy iv to stack + mov 8(%rbp),%r11 + mov %r10,0+$ivec + mov %r11,8+$ivec +.align 4 +.Lcbc_fast_dec_in_place_loop: + mov 0($inp),$s0 # load input + mov 4($inp),$s1 + mov 8($inp),$s2 + mov 12($inp),$s3 + mov $keyp,$key # restore key + mov $inp,$_inp # if ($verticalspin) save inp + + call _x86_64_AES_decrypt + + mov $_inp,$inp # if ($verticalspin) restore inp + mov $_len,%r10 + xor 0+$ivec,$s0 + xor 4+$ivec,$s1 + xor 8+$ivec,$s2 + xor 12+$ivec,$s3 + + mov 0($inp),%r11 # load input + mov 8($inp),%r12 + sub \$16,%r10 + jz .Lcbc_fast_dec_in_place_done + + mov %r11,0+$ivec # copy input to iv + mov %r12,8+$ivec + + mov $s0,0($out) # save output [zaps input] + mov $s1,4($out) + mov $s2,8($out) + mov $s3,12($out) + + lea 16($inp),$inp + lea 16($out),$out + mov %r10,$_len + jmp .Lcbc_fast_dec_in_place_loop +.Lcbc_fast_dec_in_place_done: + mov $_ivp,%rdi + mov %r11,0(%rdi) # copy iv back to user + mov %r12,8(%rdi) + + mov $s0,0($out) # save output [zaps input] + mov $s1,4($out) + mov $s2,8($out) + mov $s3,12($out) + +.align 4 +.Lcbc_fast_cleanup: + cmpl \$0,$mark # was the key schedule copied? + lea $aes_key,%rdi + je .Lcbc_exit + mov \$240/8,%ecx + xor %rax,%rax + .long 0x90AB48F3 # rep stosq + + jmp .Lcbc_exit + +#--------------------------- SLOW ROUTINE ---------------------------# +.align 16 +.Lcbc_slow_prologue: + # allocate aligned stack frame... + lea -88(%rsp),%rbp + and \$-64,%rbp + # ... just "above" key schedule + lea -88-63(%rcx),%r10 + sub %rbp,%r10 + neg %r10 + and \$0x3c0,%r10 + sub %r10,%rbp + + xchg %rsp,%rbp + #add \$8,%rsp # reserve for return address! + mov %rbp,$_rsp # save %rsp +.Lcbc_slow_body: + #mov %rdi,$_inp # save copy of inp + #mov %rsi,$_out # save copy of out + #mov %rdx,$_len # save copy of len + #mov %rcx,$_key # save copy of key + mov %r8,$_ivp # save copy of ivp + mov %r8,%rbp # rearrange input arguments + mov %r9,%rbx + mov %rsi,$out + mov %rdi,$inp + mov %rcx,$key + mov %rdx,%r10 + + mov 240($key),%eax + mov $key,$keyp # save key pointer + shl \$4,%eax + lea ($key,%rax),%rax + mov %rax,$keyend + + # pick Te4 copy which can't "overlap" with stack frame or key scdedule + lea 2048($sbox),$sbox + lea 768-8(%rsp),%rax + sub $sbox,%rax + and \$0x300,%rax + lea ($sbox,%rax),$sbox + + cmp \$0,%rbx + je .LSLOW_DECRYPT + +#--------------------------- SLOW ENCRYPT ---------------------------# + test \$-16,%r10 # check upon length + mov 0(%rbp),$s0 # load iv + mov 4(%rbp),$s1 + mov 8(%rbp),$s2 + mov 12(%rbp),$s3 + jz .Lcbc_slow_enc_tail # short input... + +.align 4 +.Lcbc_slow_enc_loop: + xor 0($inp),$s0 + xor 4($inp),$s1 + xor 8($inp),$s2 + xor 12($inp),$s3 + mov $keyp,$key # restore key + mov $inp,$_inp # save inp + mov $out,$_out # save out + mov %r10,$_len # save len + + call _x86_64_AES_encrypt_compact + + mov $_inp,$inp # restore inp + mov $_out,$out # restore out + mov $_len,%r10 # restore len + mov $s0,0($out) + mov $s1,4($out) + mov $s2,8($out) + mov $s3,12($out) + + lea 16($inp),$inp + lea 16($out),$out + sub \$16,%r10 + test \$-16,%r10 + jnz .Lcbc_slow_enc_loop + test \$15,%r10 + jnz .Lcbc_slow_enc_tail + mov $_ivp,%rbp # restore ivp + mov $s0,0(%rbp) # save ivec + mov $s1,4(%rbp) + mov $s2,8(%rbp) + mov $s3,12(%rbp) + + jmp .Lcbc_exit + +.align 4 +.Lcbc_slow_enc_tail: + mov %rax,%r11 + mov %rcx,%r12 + mov %r10,%rcx + mov $inp,%rsi + mov $out,%rdi + .long 0x9066A4F3 # rep movsb + mov \$16,%rcx # zero tail + sub %r10,%rcx + xor %rax,%rax + .long 0x9066AAF3 # rep stosb + mov $out,$inp # this is not a mistake! + mov \$16,%r10 # len=16 + mov %r11,%rax + mov %r12,%rcx + jmp .Lcbc_slow_enc_loop # one more spin... +#--------------------------- SLOW DECRYPT ---------------------------# +.align 16 +.LSLOW_DECRYPT: + shr \$3,%rax + add %rax,$sbox # recall "magic" constants! + + mov 0(%rbp),%r11 # copy iv to stack + mov 8(%rbp),%r12 + mov %r11,0+$ivec + mov %r12,8+$ivec + +.align 4 +.Lcbc_slow_dec_loop: + mov 0($inp),$s0 # load input + mov 4($inp),$s1 + mov 8($inp),$s2 + mov 12($inp),$s3 + mov $keyp,$key # restore key + mov $inp,$_inp # save inp + mov $out,$_out # save out + mov %r10,$_len # save len + + call _x86_64_AES_decrypt_compact + + mov $_inp,$inp # restore inp + mov $_out,$out # restore out + mov $_len,%r10 + xor 0+$ivec,$s0 + xor 4+$ivec,$s1 + xor 8+$ivec,$s2 + xor 12+$ivec,$s3 + + mov 0($inp),%r11 # load input + mov 8($inp),%r12 + sub \$16,%r10 + jc .Lcbc_slow_dec_partial + jz .Lcbc_slow_dec_done + + mov %r11,0+$ivec # copy input to iv + mov %r12,8+$ivec + + mov $s0,0($out) # save output [can zap input] + mov $s1,4($out) + mov $s2,8($out) + mov $s3,12($out) + + lea 16($inp),$inp + lea 16($out),$out + jmp .Lcbc_slow_dec_loop +.Lcbc_slow_dec_done: + mov $_ivp,%rdi + mov %r11,0(%rdi) # copy iv back to user + mov %r12,8(%rdi) + + mov $s0,0($out) # save output [can zap input] + mov $s1,4($out) + mov $s2,8($out) + mov $s3,12($out) + + jmp .Lcbc_exit + +.align 4 +.Lcbc_slow_dec_partial: + mov $_ivp,%rdi + mov %r11,0(%rdi) # copy iv back to user + mov %r12,8(%rdi) + + mov $s0,0+$ivec # save output to stack + mov $s1,4+$ivec + mov $s2,8+$ivec + mov $s3,12+$ivec + + mov $out,%rdi + lea $ivec,%rsi + lea 16(%r10),%rcx + .long 0x9066A4F3 # rep movsb + jmp .Lcbc_exit + +.align 16 +.Lcbc_exit: + mov $_rsp,%rsi + mov (%rsi),%r15 + mov 8(%rsi),%r14 + mov 16(%rsi),%r13 + mov 24(%rsi),%r12 + mov 32(%rsi),%rbp + mov 40(%rsi),%rbx + lea 48(%rsi),%rsp +.Lcbc_popfq: + popfq +.Lcbc_epilogue: + ret +.size AES_cbc_encrypt,.-AES_cbc_encrypt +___ +} + +$code.=<<___; +.align 64 +.LAES_Te: +___ + &_data_word(0xa56363c6, 0x847c7cf8, 0x997777ee, 0x8d7b7bf6); + &_data_word(0x0df2f2ff, 0xbd6b6bd6, 0xb16f6fde, 0x54c5c591); + &_data_word(0x50303060, 0x03010102, 0xa96767ce, 0x7d2b2b56); + &_data_word(0x19fefee7, 0x62d7d7b5, 0xe6abab4d, 0x9a7676ec); + &_data_word(0x45caca8f, 0x9d82821f, 0x40c9c989, 0x877d7dfa); + &_data_word(0x15fafaef, 0xeb5959b2, 0xc947478e, 0x0bf0f0fb); + &_data_word(0xecadad41, 0x67d4d4b3, 0xfda2a25f, 0xeaafaf45); + &_data_word(0xbf9c9c23, 0xf7a4a453, 0x967272e4, 0x5bc0c09b); + &_data_word(0xc2b7b775, 0x1cfdfde1, 0xae93933d, 0x6a26264c); + &_data_word(0x5a36366c, 0x413f3f7e, 0x02f7f7f5, 0x4fcccc83); + &_data_word(0x5c343468, 0xf4a5a551, 0x34e5e5d1, 0x08f1f1f9); + &_data_word(0x937171e2, 0x73d8d8ab, 0x53313162, 0x3f15152a); + &_data_word(0x0c040408, 0x52c7c795, 0x65232346, 0x5ec3c39d); + &_data_word(0x28181830, 0xa1969637, 0x0f05050a, 0xb59a9a2f); + &_data_word(0x0907070e, 0x36121224, 0x9b80801b, 0x3de2e2df); + &_data_word(0x26ebebcd, 0x6927274e, 0xcdb2b27f, 0x9f7575ea); + &_data_word(0x1b090912, 0x9e83831d, 0x742c2c58, 0x2e1a1a34); + &_data_word(0x2d1b1b36, 0xb26e6edc, 0xee5a5ab4, 0xfba0a05b); + &_data_word(0xf65252a4, 0x4d3b3b76, 0x61d6d6b7, 0xceb3b37d); + &_data_word(0x7b292952, 0x3ee3e3dd, 0x712f2f5e, 0x97848413); + &_data_word(0xf55353a6, 0x68d1d1b9, 0x00000000, 0x2cededc1); + &_data_word(0x60202040, 0x1ffcfce3, 0xc8b1b179, 0xed5b5bb6); + &_data_word(0xbe6a6ad4, 0x46cbcb8d, 0xd9bebe67, 0x4b393972); + &_data_word(0xde4a4a94, 0xd44c4c98, 0xe85858b0, 0x4acfcf85); + &_data_word(0x6bd0d0bb, 0x2aefefc5, 0xe5aaaa4f, 0x16fbfbed); + &_data_word(0xc5434386, 0xd74d4d9a, 0x55333366, 0x94858511); + &_data_word(0xcf45458a, 0x10f9f9e9, 0x06020204, 0x817f7ffe); + &_data_word(0xf05050a0, 0x443c3c78, 0xba9f9f25, 0xe3a8a84b); + &_data_word(0xf35151a2, 0xfea3a35d, 0xc0404080, 0x8a8f8f05); + &_data_word(0xad92923f, 0xbc9d9d21, 0x48383870, 0x04f5f5f1); + &_data_word(0xdfbcbc63, 0xc1b6b677, 0x75dadaaf, 0x63212142); + &_data_word(0x30101020, 0x1affffe5, 0x0ef3f3fd, 0x6dd2d2bf); + &_data_word(0x4ccdcd81, 0x140c0c18, 0x35131326, 0x2fececc3); + &_data_word(0xe15f5fbe, 0xa2979735, 0xcc444488, 0x3917172e); + &_data_word(0x57c4c493, 0xf2a7a755, 0x827e7efc, 0x473d3d7a); + &_data_word(0xac6464c8, 0xe75d5dba, 0x2b191932, 0x957373e6); + &_data_word(0xa06060c0, 0x98818119, 0xd14f4f9e, 0x7fdcdca3); + &_data_word(0x66222244, 0x7e2a2a54, 0xab90903b, 0x8388880b); + &_data_word(0xca46468c, 0x29eeeec7, 0xd3b8b86b, 0x3c141428); + &_data_word(0x79dedea7, 0xe25e5ebc, 0x1d0b0b16, 0x76dbdbad); + &_data_word(0x3be0e0db, 0x56323264, 0x4e3a3a74, 0x1e0a0a14); + &_data_word(0xdb494992, 0x0a06060c, 0x6c242448, 0xe45c5cb8); + &_data_word(0x5dc2c29f, 0x6ed3d3bd, 0xefacac43, 0xa66262c4); + &_data_word(0xa8919139, 0xa4959531, 0x37e4e4d3, 0x8b7979f2); + &_data_word(0x32e7e7d5, 0x43c8c88b, 0x5937376e, 0xb76d6dda); + &_data_word(0x8c8d8d01, 0x64d5d5b1, 0xd24e4e9c, 0xe0a9a949); + &_data_word(0xb46c6cd8, 0xfa5656ac, 0x07f4f4f3, 0x25eaeacf); + &_data_word(0xaf6565ca, 0x8e7a7af4, 0xe9aeae47, 0x18080810); + &_data_word(0xd5baba6f, 0x887878f0, 0x6f25254a, 0x722e2e5c); + &_data_word(0x241c1c38, 0xf1a6a657, 0xc7b4b473, 0x51c6c697); + &_data_word(0x23e8e8cb, 0x7cdddda1, 0x9c7474e8, 0x211f1f3e); + &_data_word(0xdd4b4b96, 0xdcbdbd61, 0x868b8b0d, 0x858a8a0f); + &_data_word(0x907070e0, 0x423e3e7c, 0xc4b5b571, 0xaa6666cc); + &_data_word(0xd8484890, 0x05030306, 0x01f6f6f7, 0x120e0e1c); + &_data_word(0xa36161c2, 0x5f35356a, 0xf95757ae, 0xd0b9b969); + &_data_word(0x91868617, 0x58c1c199, 0x271d1d3a, 0xb99e9e27); + &_data_word(0x38e1e1d9, 0x13f8f8eb, 0xb398982b, 0x33111122); + &_data_word(0xbb6969d2, 0x70d9d9a9, 0x898e8e07, 0xa7949433); + &_data_word(0xb69b9b2d, 0x221e1e3c, 0x92878715, 0x20e9e9c9); + &_data_word(0x49cece87, 0xff5555aa, 0x78282850, 0x7adfdfa5); + &_data_word(0x8f8c8c03, 0xf8a1a159, 0x80898909, 0x170d0d1a); + &_data_word(0xdabfbf65, 0x31e6e6d7, 0xc6424284, 0xb86868d0); + &_data_word(0xc3414182, 0xb0999929, 0x772d2d5a, 0x110f0f1e); + &_data_word(0xcbb0b07b, 0xfc5454a8, 0xd6bbbb6d, 0x3a16162c); + +#Te4 # four copies of Te4 to choose from to avoid L1 aliasing + &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); + &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); + &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); + &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); + &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); + &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); + &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); + &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); + &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); + &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); + &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); + &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); + &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); + &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); + &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); + &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); + &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); + &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); + &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); + &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); + &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); + &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); + &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); + &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); + &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); + &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); + &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); + &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); + &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); + &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); + &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); + &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); + + &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); + &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); + &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); + &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); + &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); + &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); + &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); + &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); + &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); + &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); + &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); + &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); + &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); + &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); + &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); + &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); + &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); + &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); + &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); + &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); + &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); + &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); + &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); + &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); + &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); + &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); + &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); + &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); + &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); + &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); + &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); + &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); + + &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); + &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); + &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); + &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); + &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); + &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); + &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); + &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); + &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); + &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); + &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); + &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); + &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); + &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); + &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); + &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); + &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); + &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); + &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); + &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); + &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); + &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); + &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); + &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); + &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); + &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); + &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); + &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); + &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); + &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); + &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); + &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); + + &data_byte(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5); + &data_byte(0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76); + &data_byte(0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0); + &data_byte(0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0); + &data_byte(0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc); + &data_byte(0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15); + &data_byte(0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a); + &data_byte(0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75); + &data_byte(0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0); + &data_byte(0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84); + &data_byte(0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b); + &data_byte(0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf); + &data_byte(0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85); + &data_byte(0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8); + &data_byte(0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5); + &data_byte(0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2); + &data_byte(0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17); + &data_byte(0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73); + &data_byte(0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88); + &data_byte(0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb); + &data_byte(0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c); + &data_byte(0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79); + &data_byte(0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9); + &data_byte(0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08); + &data_byte(0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6); + &data_byte(0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a); + &data_byte(0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e); + &data_byte(0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e); + &data_byte(0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94); + &data_byte(0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf); + &data_byte(0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68); + &data_byte(0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16); +#rcon: +$code.=<<___; + .long 0x00000001, 0x00000002, 0x00000004, 0x00000008 + .long 0x00000010, 0x00000020, 0x00000040, 0x00000080 + .long 0x0000001b, 0x00000036, 0x80808080, 0x80808080 + .long 0xfefefefe, 0xfefefefe, 0x1b1b1b1b, 0x1b1b1b1b +___ +$code.=<<___; +.align 64 +.LAES_Td: +___ + &_data_word(0x50a7f451, 0x5365417e, 0xc3a4171a, 0x965e273a); + &_data_word(0xcb6bab3b, 0xf1459d1f, 0xab58faac, 0x9303e34b); + &_data_word(0x55fa3020, 0xf66d76ad, 0x9176cc88, 0x254c02f5); + &_data_word(0xfcd7e54f, 0xd7cb2ac5, 0x80443526, 0x8fa362b5); + &_data_word(0x495ab1de, 0x671bba25, 0x980eea45, 0xe1c0fe5d); + &_data_word(0x02752fc3, 0x12f04c81, 0xa397468d, 0xc6f9d36b); + &_data_word(0xe75f8f03, 0x959c9215, 0xeb7a6dbf, 0xda595295); + &_data_word(0x2d83bed4, 0xd3217458, 0x2969e049, 0x44c8c98e); + &_data_word(0x6a89c275, 0x78798ef4, 0x6b3e5899, 0xdd71b927); + &_data_word(0xb64fe1be, 0x17ad88f0, 0x66ac20c9, 0xb43ace7d); + &_data_word(0x184adf63, 0x82311ae5, 0x60335197, 0x457f5362); + &_data_word(0xe07764b1, 0x84ae6bbb, 0x1ca081fe, 0x942b08f9); + &_data_word(0x58684870, 0x19fd458f, 0x876cde94, 0xb7f87b52); + &_data_word(0x23d373ab, 0xe2024b72, 0x578f1fe3, 0x2aab5566); + &_data_word(0x0728ebb2, 0x03c2b52f, 0x9a7bc586, 0xa50837d3); + &_data_word(0xf2872830, 0xb2a5bf23, 0xba6a0302, 0x5c8216ed); + &_data_word(0x2b1ccf8a, 0x92b479a7, 0xf0f207f3, 0xa1e2694e); + &_data_word(0xcdf4da65, 0xd5be0506, 0x1f6234d1, 0x8afea6c4); + &_data_word(0x9d532e34, 0xa055f3a2, 0x32e18a05, 0x75ebf6a4); + &_data_word(0x39ec830b, 0xaaef6040, 0x069f715e, 0x51106ebd); + &_data_word(0xf98a213e, 0x3d06dd96, 0xae053edd, 0x46bde64d); + &_data_word(0xb58d5491, 0x055dc471, 0x6fd40604, 0xff155060); + &_data_word(0x24fb9819, 0x97e9bdd6, 0xcc434089, 0x779ed967); + &_data_word(0xbd42e8b0, 0x888b8907, 0x385b19e7, 0xdbeec879); + &_data_word(0x470a7ca1, 0xe90f427c, 0xc91e84f8, 0x00000000); + &_data_word(0x83868009, 0x48ed2b32, 0xac70111e, 0x4e725a6c); + &_data_word(0xfbff0efd, 0x5638850f, 0x1ed5ae3d, 0x27392d36); + &_data_word(0x64d90f0a, 0x21a65c68, 0xd1545b9b, 0x3a2e3624); + &_data_word(0xb1670a0c, 0x0fe75793, 0xd296eeb4, 0x9e919b1b); + &_data_word(0x4fc5c080, 0xa220dc61, 0x694b775a, 0x161a121c); + &_data_word(0x0aba93e2, 0xe52aa0c0, 0x43e0223c, 0x1d171b12); + &_data_word(0x0b0d090e, 0xadc78bf2, 0xb9a8b62d, 0xc8a91e14); + &_data_word(0x8519f157, 0x4c0775af, 0xbbdd99ee, 0xfd607fa3); + &_data_word(0x9f2601f7, 0xbcf5725c, 0xc53b6644, 0x347efb5b); + &_data_word(0x7629438b, 0xdcc623cb, 0x68fcedb6, 0x63f1e4b8); + &_data_word(0xcadc31d7, 0x10856342, 0x40229713, 0x2011c684); + &_data_word(0x7d244a85, 0xf83dbbd2, 0x1132f9ae, 0x6da129c7); + &_data_word(0x4b2f9e1d, 0xf330b2dc, 0xec52860d, 0xd0e3c177); + &_data_word(0x6c16b32b, 0x99b970a9, 0xfa489411, 0x2264e947); + &_data_word(0xc48cfca8, 0x1a3ff0a0, 0xd82c7d56, 0xef903322); + &_data_word(0xc74e4987, 0xc1d138d9, 0xfea2ca8c, 0x360bd498); + &_data_word(0xcf81f5a6, 0x28de7aa5, 0x268eb7da, 0xa4bfad3f); + &_data_word(0xe49d3a2c, 0x0d927850, 0x9bcc5f6a, 0x62467e54); + &_data_word(0xc2138df6, 0xe8b8d890, 0x5ef7392e, 0xf5afc382); + &_data_word(0xbe805d9f, 0x7c93d069, 0xa92dd56f, 0xb31225cf); + &_data_word(0x3b99acc8, 0xa77d1810, 0x6e639ce8, 0x7bbb3bdb); + &_data_word(0x097826cd, 0xf418596e, 0x01b79aec, 0xa89a4f83); + &_data_word(0x656e95e6, 0x7ee6ffaa, 0x08cfbc21, 0xe6e815ef); + &_data_word(0xd99be7ba, 0xce366f4a, 0xd4099fea, 0xd67cb029); + &_data_word(0xafb2a431, 0x31233f2a, 0x3094a5c6, 0xc066a235); + &_data_word(0x37bc4e74, 0xa6ca82fc, 0xb0d090e0, 0x15d8a733); + &_data_word(0x4a9804f1, 0xf7daec41, 0x0e50cd7f, 0x2ff69117); + &_data_word(0x8dd64d76, 0x4db0ef43, 0x544daacc, 0xdf0496e4); + &_data_word(0xe3b5d19e, 0x1b886a4c, 0xb81f2cc1, 0x7f516546); + &_data_word(0x04ea5e9d, 0x5d358c01, 0x737487fa, 0x2e410bfb); + &_data_word(0x5a1d67b3, 0x52d2db92, 0x335610e9, 0x1347d66d); + &_data_word(0x8c61d79a, 0x7a0ca137, 0x8e14f859, 0x893c13eb); + &_data_word(0xee27a9ce, 0x35c961b7, 0xede51ce1, 0x3cb1477a); + &_data_word(0x59dfd29c, 0x3f73f255, 0x79ce1418, 0xbf37c773); + &_data_word(0xeacdf753, 0x5baafd5f, 0x146f3ddf, 0x86db4478); + &_data_word(0x81f3afca, 0x3ec468b9, 0x2c342438, 0x5f40a3c2); + &_data_word(0x72c31d16, 0x0c25e2bc, 0x8b493c28, 0x41950dff); + &_data_word(0x7101a839, 0xdeb30c08, 0x9ce4b4d8, 0x90c15664); + &_data_word(0x6184cb7b, 0x70b632d5, 0x745c6c48, 0x4257b8d0); + +#Td4: # four copies of Td4 to choose from to avoid L1 aliasing + &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); + &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); + &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); + &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); + &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); + &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); + &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); + &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); + &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); + &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); + &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); + &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); + &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); + &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); + &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); + &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); + &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); + &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); + &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); + &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); + &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); + &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); + &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); + &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); + &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); + &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); + &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); + &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); + &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); + &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); + &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); + &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); +$code.=<<___; + .long 0x80808080, 0x80808080, 0xfefefefe, 0xfefefefe + .long 0x1b1b1b1b, 0x1b1b1b1b, 0, 0 +___ + &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); + &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); + &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); + &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); + &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); + &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); + &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); + &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); + &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); + &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); + &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); + &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); + &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); + &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); + &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); + &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); + &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); + &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); + &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); + &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); + &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); + &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); + &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); + &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); + &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); + &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); + &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); + &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); + &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); + &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); + &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); + &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); +$code.=<<___; + .long 0x80808080, 0x80808080, 0xfefefefe, 0xfefefefe + .long 0x1b1b1b1b, 0x1b1b1b1b, 0, 0 +___ + &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); + &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); + &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); + &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); + &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); + &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); + &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); + &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); + &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); + &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); + &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); + &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); + &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); + &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); + &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); + &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); + &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); + &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); + &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); + &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); + &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); + &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); + &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); + &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); + &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); + &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); + &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); + &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); + &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); + &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); + &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); + &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); +$code.=<<___; + .long 0x80808080, 0x80808080, 0xfefefefe, 0xfefefefe + .long 0x1b1b1b1b, 0x1b1b1b1b, 0, 0 +___ + &data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38); + &data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb); + &data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87); + &data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb); + &data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d); + &data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e); + &data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2); + &data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25); + &data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16); + &data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92); + &data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda); + &data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84); + &data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a); + &data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06); + &data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02); + &data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b); + &data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea); + &data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73); + &data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85); + &data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e); + &data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89); + &data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b); + &data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20); + &data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4); + &data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31); + &data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f); + &data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d); + &data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef); + &data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0); + &data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61); + &data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26); + &data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d); +$code.=<<___; + .long 0x80808080, 0x80808080, 0xfefefefe, 0xfefefefe + .long 0x1b1b1b1b, 0x1b1b1b1b, 0, 0 +.asciz "AES for x86_64, CRYPTOGAMS by <appro\@openssl.org>" +.align 64 +___ + +# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, +# CONTEXT *context,DISPATCHER_CONTEXT *disp) +if ($win64) { +$rec="%rcx"; +$frame="%rdx"; +$context="%r8"; +$disp="%r9"; + +$code.=<<___; +.extern __imp_RtlVirtualUnwind +.type block_se_handler,\@abi-omnipotent +.align 16 +block_se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 120($context),%rax # pull context->Rax + mov 248($context),%rbx # pull context->Rip + + mov 8($disp),%rsi # disp->ImageBase + mov 56($disp),%r11 # disp->HandlerData + + mov 0(%r11),%r10d # HandlerData[0] + lea (%rsi,%r10),%r10 # prologue label + cmp %r10,%rbx # context->Rip<prologue label + jb .Lin_block_prologue + + mov 152($context),%rax # pull context->Rsp + + mov 4(%r11),%r10d # HandlerData[1] + lea (%rsi,%r10),%r10 # epilogue label + cmp %r10,%rbx # context->Rip>=epilogue label + jae .Lin_block_prologue + + mov 24(%rax),%rax # pull saved real stack pointer + lea 48(%rax),%rax # adjust... + + mov -8(%rax),%rbx + mov -16(%rax),%rbp + mov -24(%rax),%r12 + mov -32(%rax),%r13 + mov -40(%rax),%r14 + mov -48(%rax),%r15 + mov %rbx,144($context) # restore context->Rbx + mov %rbp,160($context) # restore context->Rbp + mov %r12,216($context) # restore context->R12 + mov %r13,224($context) # restore context->R13 + mov %r14,232($context) # restore context->R14 + mov %r15,240($context) # restore context->R15 + +.Lin_block_prologue: + mov 8(%rax),%rdi + mov 16(%rax),%rsi + mov %rax,152($context) # restore context->Rsp + mov %rsi,168($context) # restore context->Rsi + mov %rdi,176($context) # restore context->Rdi + + jmp .Lcommon_seh_exit +.size block_se_handler,.-block_se_handler + +.type key_se_handler,\@abi-omnipotent +.align 16 +key_se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 120($context),%rax # pull context->Rax + mov 248($context),%rbx # pull context->Rip + + mov 8($disp),%rsi # disp->ImageBase + mov 56($disp),%r11 # disp->HandlerData + + mov 0(%r11),%r10d # HandlerData[0] + lea (%rsi,%r10),%r10 # prologue label + cmp %r10,%rbx # context->Rip<prologue label + jb .Lin_key_prologue + + mov 152($context),%rax # pull context->Rsp + + mov 4(%r11),%r10d # HandlerData[1] + lea (%rsi,%r10),%r10 # epilogue label + cmp %r10,%rbx # context->Rip>=epilogue label + jae .Lin_key_prologue + + lea 56(%rax),%rax + + mov -8(%rax),%rbx + mov -16(%rax),%rbp + mov -24(%rax),%r12 + mov -32(%rax),%r13 + mov -40(%rax),%r14 + mov -48(%rax),%r15 + mov %rbx,144($context) # restore context->Rbx + mov %rbp,160($context) # restore context->Rbp + mov %r12,216($context) # restore context->R12 + mov %r13,224($context) # restore context->R13 + mov %r14,232($context) # restore context->R14 + mov %r15,240($context) # restore context->R15 + +.Lin_key_prologue: + mov 8(%rax),%rdi + mov 16(%rax),%rsi + mov %rax,152($context) # restore context->Rsp + mov %rsi,168($context) # restore context->Rsi + mov %rdi,176($context) # restore context->Rdi + + jmp .Lcommon_seh_exit +.size key_se_handler,.-key_se_handler + +.type cbc_se_handler,\@abi-omnipotent +.align 16 +cbc_se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 120($context),%rax # pull context->Rax + mov 248($context),%rbx # pull context->Rip + + lea .Lcbc_prologue(%rip),%r10 + cmp %r10,%rbx # context->Rip<.Lcbc_prologue + jb .Lin_cbc_prologue + + lea .Lcbc_fast_body(%rip),%r10 + cmp %r10,%rbx # context->Rip<.Lcbc_fast_body + jb .Lin_cbc_frame_setup + + lea .Lcbc_slow_prologue(%rip),%r10 + cmp %r10,%rbx # context->Rip<.Lcbc_slow_prologue + jb .Lin_cbc_body + + lea .Lcbc_slow_body(%rip),%r10 + cmp %r10,%rbx # context->Rip<.Lcbc_slow_body + jb .Lin_cbc_frame_setup + +.Lin_cbc_body: + mov 152($context),%rax # pull context->Rsp + + lea .Lcbc_epilogue(%rip),%r10 + cmp %r10,%rbx # context->Rip>=.Lcbc_epilogue + jae .Lin_cbc_prologue + + lea 8(%rax),%rax + + lea .Lcbc_popfq(%rip),%r10 + cmp %r10,%rbx # context->Rip>=.Lcbc_popfq + jae .Lin_cbc_prologue + + mov `16-8`(%rax),%rax # biased $_rsp + lea 56(%rax),%rax + +.Lin_cbc_frame_setup: + mov -16(%rax),%rbx + mov -24(%rax),%rbp + mov -32(%rax),%r12 + mov -40(%rax),%r13 + mov -48(%rax),%r14 + mov -56(%rax),%r15 + mov %rbx,144($context) # restore context->Rbx + mov %rbp,160($context) # restore context->Rbp + mov %r12,216($context) # restore context->R12 + mov %r13,224($context) # restore context->R13 + mov %r14,232($context) # restore context->R14 + mov %r15,240($context) # restore context->R15 + +.Lin_cbc_prologue: + mov 8(%rax),%rdi + mov 16(%rax),%rsi + mov %rax,152($context) # restore context->Rsp + mov %rsi,168($context) # restore context->Rsi + mov %rdi,176($context) # restore context->Rdi + +.Lcommon_seh_exit: + + mov 40($disp),%rdi # disp->ContextRecord + mov $context,%rsi # context + mov \$`1232/8`,%ecx # sizeof(CONTEXT) + .long 0xa548f3fc # cld; rep movsq + + mov $disp,%rsi + xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER + mov 8(%rsi),%rdx # arg2, disp->ImageBase + mov 0(%rsi),%r8 # arg3, disp->ControlPc + mov 16(%rsi),%r9 # arg4, disp->FunctionEntry + mov 40(%rsi),%r10 # disp->ContextRecord + lea 56(%rsi),%r11 # &disp->HandlerData + lea 24(%rsi),%r12 # &disp->EstablisherFrame + mov %r10,32(%rsp) # arg5 + mov %r11,40(%rsp) # arg6 + mov %r12,48(%rsp) # arg7 + mov %rcx,56(%rsp) # arg8, (NULL) + call *__imp_RtlVirtualUnwind(%rip) + + mov \$1,%eax # ExceptionContinueSearch + add \$64,%rsp + popfq + pop %r15 + pop %r14 + pop %r13 + pop %r12 + pop %rbp + pop %rbx + pop %rdi + pop %rsi + ret +.size cbc_se_handler,.-cbc_se_handler + +.section .pdata +.align 4 + .rva .LSEH_begin_AES_encrypt + .rva .LSEH_end_AES_encrypt + .rva .LSEH_info_AES_encrypt + + .rva .LSEH_begin_AES_decrypt + .rva .LSEH_end_AES_decrypt + .rva .LSEH_info_AES_decrypt + + .rva .LSEH_begin_AES_set_encrypt_key + .rva .LSEH_end_AES_set_encrypt_key + .rva .LSEH_info_AES_set_encrypt_key + + .rva .LSEH_begin_AES_set_decrypt_key + .rva .LSEH_end_AES_set_decrypt_key + .rva .LSEH_info_AES_set_decrypt_key + + .rva .LSEH_begin_AES_cbc_encrypt + .rva .LSEH_end_AES_cbc_encrypt + .rva .LSEH_info_AES_cbc_encrypt + +.section .xdata +.align 8 +.LSEH_info_AES_encrypt: + .byte 9,0,0,0 + .rva block_se_handler + .rva .Lenc_prologue,.Lenc_epilogue # HandlerData[] +.LSEH_info_AES_decrypt: + .byte 9,0,0,0 + .rva block_se_handler + .rva .Ldec_prologue,.Ldec_epilogue # HandlerData[] +.LSEH_info_AES_set_encrypt_key: + .byte 9,0,0,0 + .rva key_se_handler + .rva .Lenc_key_prologue,.Lenc_key_epilogue # HandlerData[] +.LSEH_info_AES_set_decrypt_key: + .byte 9,0,0,0 + .rva key_se_handler + .rva .Ldec_key_prologue,.Ldec_key_epilogue # HandlerData[] +.LSEH_info_AES_cbc_encrypt: + .byte 9,0,0,0 + .rva cbc_se_handler +___ +} + +$code =~ s/\`([^\`]*)\`/eval($1)/gem; + +print $code; + +close STDOUT; diff --git a/crypto/aes/asm/aesni-x86.pl b/crypto/aes/asm/aesni-x86.pl new file mode 100644 index 00000000..3dc345b5 --- /dev/null +++ b/crypto/aes/asm/aesni-x86.pl @@ -0,0 +1,2189 @@ +#!/usr/bin/env perl + +# ==================================================================== +# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# This module implements support for Intel AES-NI extension. In +# OpenSSL context it's used with Intel engine, but can also be used as +# drop-in replacement for crypto/aes/asm/aes-586.pl [see below for +# details]. +# +# Performance. +# +# To start with see corresponding paragraph in aesni-x86_64.pl... +# Instead of filling table similar to one found there I've chosen to +# summarize *comparison* results for raw ECB, CTR and CBC benchmarks. +# The simplified table below represents 32-bit performance relative +# to 64-bit one in every given point. Ratios vary for different +# encryption modes, therefore interval values. +# +# 16-byte 64-byte 256-byte 1-KB 8-KB +# 53-67% 67-84% 91-94% 95-98% 97-99.5% +# +# Lower ratios for smaller block sizes are perfectly understandable, +# because function call overhead is higher in 32-bit mode. Largest +# 8-KB block performance is virtually same: 32-bit code is less than +# 1% slower for ECB, CBC and CCM, and ~3% slower otherwise. + +# January 2011 +# +# See aesni-x86_64.pl for details. Unlike x86_64 version this module +# interleaves at most 6 aes[enc|dec] instructions, because there are +# not enough registers for 8x interleave [which should be optimal for +# Sandy Bridge]. Actually, performance results for 6x interleave +# factor presented in aesni-x86_64.pl (except for CTR) are for this +# module. + +# April 2011 +# +# Add aesni_xts_[en|de]crypt. Westmere spends 1.50 cycles processing +# one byte out of 8KB with 128-bit key, Sandy Bridge - 1.09. + +$PREFIX="aesni"; # if $PREFIX is set to "AES", the script + # generates drop-in replacement for + # crypto/aes/asm/aes-586.pl:-) +$inline=1; # inline _aesni_[en|de]crypt + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +push(@INC,"${dir}","${dir}../../perlasm"); +require "x86asm.pl"; + +&asm_init($ARGV[0],$0); + +if ($PREFIX eq "aesni") { $movekey=*movups; } +else { $movekey=*movups; } + +$len="eax"; +$rounds="ecx"; +$key="edx"; +$inp="esi"; +$out="edi"; +$rounds_="ebx"; # backup copy for $rounds +$key_="ebp"; # backup copy for $key + +$rndkey0="xmm0"; +$rndkey1="xmm1"; +$inout0="xmm2"; +$inout1="xmm3"; +$inout2="xmm4"; +$inout3="xmm5"; $in1="xmm5"; +$inout4="xmm6"; $in0="xmm6"; +$inout5="xmm7"; $ivec="xmm7"; + +# AESNI extenstion +sub aeskeygenassist +{ my($dst,$src,$imm)=@_; + if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/) + { &data_byte(0x66,0x0f,0x3a,0xdf,0xc0|($1<<3)|$2,$imm); } +} +sub aescommon +{ my($opcodelet,$dst,$src)=@_; + if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/) + { &data_byte(0x66,0x0f,0x38,$opcodelet,0xc0|($1<<3)|$2);} +} +sub aesimc { aescommon(0xdb,@_); } +sub aesenc { aescommon(0xdc,@_); } +sub aesenclast { aescommon(0xdd,@_); } +sub aesdec { aescommon(0xde,@_); } +sub aesdeclast { aescommon(0xdf,@_); } + +# Inline version of internal aesni_[en|de]crypt1 +{ my $sn; +sub aesni_inline_generate1 +{ my ($p,$inout,$ivec)=@_; $inout=$inout0 if (!defined($inout)); + $sn++; + + &$movekey ($rndkey0,&QWP(0,$key)); + &$movekey ($rndkey1,&QWP(16,$key)); + &xorps ($ivec,$rndkey0) if (defined($ivec)); + &lea ($key,&DWP(32,$key)); + &xorps ($inout,$ivec) if (defined($ivec)); + &xorps ($inout,$rndkey0) if (!defined($ivec)); + &set_label("${p}1_loop_$sn"); + eval"&aes${p} ($inout,$rndkey1)"; + &dec ($rounds); + &$movekey ($rndkey1,&QWP(0,$key)); + &lea ($key,&DWP(16,$key)); + &jnz (&label("${p}1_loop_$sn")); + eval"&aes${p}last ($inout,$rndkey1)"; +}} + +sub aesni_generate1 # fully unrolled loop +{ my ($p,$inout)=@_; $inout=$inout0 if (!defined($inout)); + + &function_begin_B("_aesni_${p}rypt1"); + &movups ($rndkey0,&QWP(0,$key)); + &$movekey ($rndkey1,&QWP(0x10,$key)); + &xorps ($inout,$rndkey0); + &$movekey ($rndkey0,&QWP(0x20,$key)); + &lea ($key,&DWP(0x30,$key)); + &cmp ($rounds,11); + &jb (&label("${p}128")); + &lea ($key,&DWP(0x20,$key)); + &je (&label("${p}192")); + &lea ($key,&DWP(0x20,$key)); + eval"&aes${p} ($inout,$rndkey1)"; + &$movekey ($rndkey1,&QWP(-0x40,$key)); + eval"&aes${p} ($inout,$rndkey0)"; + &$movekey ($rndkey0,&QWP(-0x30,$key)); + &set_label("${p}192"); + eval"&aes${p} ($inout,$rndkey1)"; + &$movekey ($rndkey1,&QWP(-0x20,$key)); + eval"&aes${p} ($inout,$rndkey0)"; + &$movekey ($rndkey0,&QWP(-0x10,$key)); + &set_label("${p}128"); + eval"&aes${p} ($inout,$rndkey1)"; + &$movekey ($rndkey1,&QWP(0,$key)); + eval"&aes${p} ($inout,$rndkey0)"; + &$movekey ($rndkey0,&QWP(0x10,$key)); + eval"&aes${p} ($inout,$rndkey1)"; + &$movekey ($rndkey1,&QWP(0x20,$key)); + eval"&aes${p} ($inout,$rndkey0)"; + &$movekey ($rndkey0,&QWP(0x30,$key)); + eval"&aes${p} ($inout,$rndkey1)"; + &$movekey ($rndkey1,&QWP(0x40,$key)); + eval"&aes${p} ($inout,$rndkey0)"; + &$movekey ($rndkey0,&QWP(0x50,$key)); + eval"&aes${p} ($inout,$rndkey1)"; + &$movekey ($rndkey1,&QWP(0x60,$key)); + eval"&aes${p} ($inout,$rndkey0)"; + &$movekey ($rndkey0,&QWP(0x70,$key)); + eval"&aes${p} ($inout,$rndkey1)"; + eval"&aes${p}last ($inout,$rndkey0)"; + &ret(); + &function_end_B("_aesni_${p}rypt1"); +} + +# void $PREFIX_encrypt (const void *inp,void *out,const AES_KEY *key); +&aesni_generate1("enc") if (!$inline); +&function_begin_B("${PREFIX}_encrypt"); + &mov ("eax",&wparam(0)); + &mov ($key,&wparam(2)); + &movups ($inout0,&QWP(0,"eax")); + &mov ($rounds,&DWP(240,$key)); + &mov ("eax",&wparam(1)); + if ($inline) + { &aesni_inline_generate1("enc"); } + else + { &call ("_aesni_encrypt1"); } + &movups (&QWP(0,"eax"),$inout0); + &ret (); +&function_end_B("${PREFIX}_encrypt"); + +# void $PREFIX_decrypt (const void *inp,void *out,const AES_KEY *key); +&aesni_generate1("dec") if(!$inline); +&function_begin_B("${PREFIX}_decrypt"); + &mov ("eax",&wparam(0)); + &mov ($key,&wparam(2)); + &movups ($inout0,&QWP(0,"eax")); + &mov ($rounds,&DWP(240,$key)); + &mov ("eax",&wparam(1)); + if ($inline) + { &aesni_inline_generate1("dec"); } + else + { &call ("_aesni_decrypt1"); } + &movups (&QWP(0,"eax"),$inout0); + &ret (); +&function_end_B("${PREFIX}_decrypt"); + +# _aesni_[en|de]cryptN are private interfaces, N denotes interleave +# factor. Why 3x subroutine were originally used in loops? Even though +# aes[enc|dec] latency was originally 6, it could be scheduled only +# every *2nd* cycle. Thus 3x interleave was the one providing optimal +# utilization, i.e. when subroutine's throughput is virtually same as +# of non-interleaved subroutine [for number of input blocks up to 3]. +# This is why it makes no sense to implement 2x subroutine. +# aes[enc|dec] latency in next processor generation is 8, but the +# instructions can be scheduled every cycle. Optimal interleave for +# new processor is therefore 8x, but it's unfeasible to accommodate it +# in XMM registers addreassable in 32-bit mode and therefore 6x is +# used instead... + +sub aesni_generate3 +{ my $p=shift; + + &function_begin_B("_aesni_${p}rypt3"); + &$movekey ($rndkey0,&QWP(0,$key)); + &shr ($rounds,1); + &$movekey ($rndkey1,&QWP(16,$key)); + &lea ($key,&DWP(32,$key)); + &xorps ($inout0,$rndkey0); + &pxor ($inout1,$rndkey0); + &pxor ($inout2,$rndkey0); + &$movekey ($rndkey0,&QWP(0,$key)); + + &set_label("${p}3_loop"); + eval"&aes${p} ($inout0,$rndkey1)"; + eval"&aes${p} ($inout1,$rndkey1)"; + &dec ($rounds); + eval"&aes${p} ($inout2,$rndkey1)"; + &$movekey ($rndkey1,&QWP(16,$key)); + eval"&aes${p} ($inout0,$rndkey0)"; + eval"&aes${p} ($inout1,$rndkey0)"; + &lea ($key,&DWP(32,$key)); + eval"&aes${p} ($inout2,$rndkey0)"; + &$movekey ($rndkey0,&QWP(0,$key)); + &jnz (&label("${p}3_loop")); + eval"&aes${p} ($inout0,$rndkey1)"; + eval"&aes${p} ($inout1,$rndkey1)"; + eval"&aes${p} ($inout2,$rndkey1)"; + eval"&aes${p}last ($inout0,$rndkey0)"; + eval"&aes${p}last ($inout1,$rndkey0)"; + eval"&aes${p}last ($inout2,$rndkey0)"; + &ret(); + &function_end_B("_aesni_${p}rypt3"); +} + +# 4x interleave is implemented to improve small block performance, +# most notably [and naturally] 4 block by ~30%. One can argue that one +# should have implemented 5x as well, but improvement would be <20%, +# so it's not worth it... +sub aesni_generate4 +{ my $p=shift; + + &function_begin_B("_aesni_${p}rypt4"); + &$movekey ($rndkey0,&QWP(0,$key)); + &$movekey ($rndkey1,&QWP(16,$key)); + &shr ($rounds,1); + &lea ($key,&DWP(32,$key)); + &xorps ($inout0,$rndkey0); + &pxor ($inout1,$rndkey0); + &pxor ($inout2,$rndkey0); + &pxor ($inout3,$rndkey0); + &$movekey ($rndkey0,&QWP(0,$key)); + + &set_label("${p}4_loop"); + eval"&aes${p} ($inout0,$rndkey1)"; + eval"&aes${p} ($inout1,$rndkey1)"; + &dec ($rounds); + eval"&aes${p} ($inout2,$rndkey1)"; + eval"&aes${p} ($inout3,$rndkey1)"; + &$movekey ($rndkey1,&QWP(16,$key)); + eval"&aes${p} ($inout0,$rndkey0)"; + eval"&aes${p} ($inout1,$rndkey0)"; + &lea ($key,&DWP(32,$key)); + eval"&aes${p} ($inout2,$rndkey0)"; + eval"&aes${p} ($inout3,$rndkey0)"; + &$movekey ($rndkey0,&QWP(0,$key)); + &jnz (&label("${p}4_loop")); + + eval"&aes${p} ($inout0,$rndkey1)"; + eval"&aes${p} ($inout1,$rndkey1)"; + eval"&aes${p} ($inout2,$rndkey1)"; + eval"&aes${p} ($inout3,$rndkey1)"; + eval"&aes${p}last ($inout0,$rndkey0)"; + eval"&aes${p}last ($inout1,$rndkey0)"; + eval"&aes${p}last ($inout2,$rndkey0)"; + eval"&aes${p}last ($inout3,$rndkey0)"; + &ret(); + &function_end_B("_aesni_${p}rypt4"); +} + +sub aesni_generate6 +{ my $p=shift; + + &function_begin_B("_aesni_${p}rypt6"); + &static_label("_aesni_${p}rypt6_enter"); + &$movekey ($rndkey0,&QWP(0,$key)); + &shr ($rounds,1); + &$movekey ($rndkey1,&QWP(16,$key)); + &lea ($key,&DWP(32,$key)); + &xorps ($inout0,$rndkey0); + &pxor ($inout1,$rndkey0); # pxor does better here + eval"&aes${p} ($inout0,$rndkey1)"; + &pxor ($inout2,$rndkey0); + eval"&aes${p} ($inout1,$rndkey1)"; + &pxor ($inout3,$rndkey0); + &dec ($rounds); + eval"&aes${p} ($inout2,$rndkey1)"; + &pxor ($inout4,$rndkey0); + eval"&aes${p} ($inout3,$rndkey1)"; + &pxor ($inout5,$rndkey0); + eval"&aes${p} ($inout4,$rndkey1)"; + &$movekey ($rndkey0,&QWP(0,$key)); + eval"&aes${p} ($inout5,$rndkey1)"; + &jmp (&label("_aesni_${p}rypt6_enter")); + + &set_label("${p}6_loop",16); + eval"&aes${p} ($inout0,$rndkey1)"; + eval"&aes${p} ($inout1,$rndkey1)"; + &dec ($rounds); + eval"&aes${p} ($inout2,$rndkey1)"; + eval"&aes${p} ($inout3,$rndkey1)"; + eval"&aes${p} ($inout4,$rndkey1)"; + eval"&aes${p} ($inout5,$rndkey1)"; + &set_label("_aesni_${p}rypt6_enter",16); + &$movekey ($rndkey1,&QWP(16,$key)); + eval"&aes${p} ($inout0,$rndkey0)"; + eval"&aes${p} ($inout1,$rndkey0)"; + &lea ($key,&DWP(32,$key)); + eval"&aes${p} ($inout2,$rndkey0)"; + eval"&aes${p} ($inout3,$rndkey0)"; + eval"&aes${p} ($inout4,$rndkey0)"; + eval"&aes${p} ($inout5,$rndkey0)"; + &$movekey ($rndkey0,&QWP(0,$key)); + &jnz (&label("${p}6_loop")); + + eval"&aes${p} ($inout0,$rndkey1)"; + eval"&aes${p} ($inout1,$rndkey1)"; + eval"&aes${p} ($inout2,$rndkey1)"; + eval"&aes${p} ($inout3,$rndkey1)"; + eval"&aes${p} ($inout4,$rndkey1)"; + eval"&aes${p} ($inout5,$rndkey1)"; + eval"&aes${p}last ($inout0,$rndkey0)"; + eval"&aes${p}last ($inout1,$rndkey0)"; + eval"&aes${p}last ($inout2,$rndkey0)"; + eval"&aes${p}last ($inout3,$rndkey0)"; + eval"&aes${p}last ($inout4,$rndkey0)"; + eval"&aes${p}last ($inout5,$rndkey0)"; + &ret(); + &function_end_B("_aesni_${p}rypt6"); +} +&aesni_generate3("enc") if ($PREFIX eq "aesni"); +&aesni_generate3("dec"); +&aesni_generate4("enc") if ($PREFIX eq "aesni"); +&aesni_generate4("dec"); +&aesni_generate6("enc") if ($PREFIX eq "aesni"); +&aesni_generate6("dec"); + +if ($PREFIX eq "aesni") { +###################################################################### +# void aesni_ecb_encrypt (const void *in, void *out, +# size_t length, const AES_KEY *key, +# int enc); +&function_begin("aesni_ecb_encrypt"); + &mov ($inp,&wparam(0)); + &mov ($out,&wparam(1)); + &mov ($len,&wparam(2)); + &mov ($key,&wparam(3)); + &mov ($rounds_,&wparam(4)); + &and ($len,-16); + &jz (&label("ecb_ret")); + &mov ($rounds,&DWP(240,$key)); + &test ($rounds_,$rounds_); + &jz (&label("ecb_decrypt")); + + &mov ($key_,$key); # backup $key + &mov ($rounds_,$rounds); # backup $rounds + &cmp ($len,0x60); + &jb (&label("ecb_enc_tail")); + + &movdqu ($inout0,&QWP(0,$inp)); + &movdqu ($inout1,&QWP(0x10,$inp)); + &movdqu ($inout2,&QWP(0x20,$inp)); + &movdqu ($inout3,&QWP(0x30,$inp)); + &movdqu ($inout4,&QWP(0x40,$inp)); + &movdqu ($inout5,&QWP(0x50,$inp)); + &lea ($inp,&DWP(0x60,$inp)); + &sub ($len,0x60); + &jmp (&label("ecb_enc_loop6_enter")); + +&set_label("ecb_enc_loop6",16); + &movups (&QWP(0,$out),$inout0); + &movdqu ($inout0,&QWP(0,$inp)); + &movups (&QWP(0x10,$out),$inout1); + &movdqu ($inout1,&QWP(0x10,$inp)); + &movups (&QWP(0x20,$out),$inout2); + &movdqu ($inout2,&QWP(0x20,$inp)); + &movups (&QWP(0x30,$out),$inout3); + &movdqu ($inout3,&QWP(0x30,$inp)); + &movups (&QWP(0x40,$out),$inout4); + &movdqu ($inout4,&QWP(0x40,$inp)); + &movups (&QWP(0x50,$out),$inout5); + &lea ($out,&DWP(0x60,$out)); + &movdqu ($inout5,&QWP(0x50,$inp)); + &lea ($inp,&DWP(0x60,$inp)); +&set_label("ecb_enc_loop6_enter"); + + &call ("_aesni_encrypt6"); + + &mov ($key,$key_); # restore $key + &mov ($rounds,$rounds_); # restore $rounds + &sub ($len,0x60); + &jnc (&label("ecb_enc_loop6")); + + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + &movups (&QWP(0x30,$out),$inout3); + &movups (&QWP(0x40,$out),$inout4); + &movups (&QWP(0x50,$out),$inout5); + &lea ($out,&DWP(0x60,$out)); + &add ($len,0x60); + &jz (&label("ecb_ret")); + +&set_label("ecb_enc_tail"); + &movups ($inout0,&QWP(0,$inp)); + &cmp ($len,0x20); + &jb (&label("ecb_enc_one")); + &movups ($inout1,&QWP(0x10,$inp)); + &je (&label("ecb_enc_two")); + &movups ($inout2,&QWP(0x20,$inp)); + &cmp ($len,0x40); + &jb (&label("ecb_enc_three")); + &movups ($inout3,&QWP(0x30,$inp)); + &je (&label("ecb_enc_four")); + &movups ($inout4,&QWP(0x40,$inp)); + &xorps ($inout5,$inout5); + &call ("_aesni_encrypt6"); + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + &movups (&QWP(0x30,$out),$inout3); + &movups (&QWP(0x40,$out),$inout4); + jmp (&label("ecb_ret")); + +&set_label("ecb_enc_one",16); + if ($inline) + { &aesni_inline_generate1("enc"); } + else + { &call ("_aesni_encrypt1"); } + &movups (&QWP(0,$out),$inout0); + &jmp (&label("ecb_ret")); + +&set_label("ecb_enc_two",16); + &xorps ($inout2,$inout2); + &call ("_aesni_encrypt3"); + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &jmp (&label("ecb_ret")); + +&set_label("ecb_enc_three",16); + &call ("_aesni_encrypt3"); + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + &jmp (&label("ecb_ret")); + +&set_label("ecb_enc_four",16); + &call ("_aesni_encrypt4"); + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + &movups (&QWP(0x30,$out),$inout3); + &jmp (&label("ecb_ret")); +###################################################################### +&set_label("ecb_decrypt",16); + &mov ($key_,$key); # backup $key + &mov ($rounds_,$rounds); # backup $rounds + &cmp ($len,0x60); + &jb (&label("ecb_dec_tail")); + + &movdqu ($inout0,&QWP(0,$inp)); + &movdqu ($inout1,&QWP(0x10,$inp)); + &movdqu ($inout2,&QWP(0x20,$inp)); + &movdqu ($inout3,&QWP(0x30,$inp)); + &movdqu ($inout4,&QWP(0x40,$inp)); + &movdqu ($inout5,&QWP(0x50,$inp)); + &lea ($inp,&DWP(0x60,$inp)); + &sub ($len,0x60); + &jmp (&label("ecb_dec_loop6_enter")); + +&set_label("ecb_dec_loop6",16); + &movups (&QWP(0,$out),$inout0); + &movdqu ($inout0,&QWP(0,$inp)); + &movups (&QWP(0x10,$out),$inout1); + &movdqu ($inout1,&QWP(0x10,$inp)); + &movups (&QWP(0x20,$out),$inout2); + &movdqu ($inout2,&QWP(0x20,$inp)); + &movups (&QWP(0x30,$out),$inout3); + &movdqu ($inout3,&QWP(0x30,$inp)); + &movups (&QWP(0x40,$out),$inout4); + &movdqu ($inout4,&QWP(0x40,$inp)); + &movups (&QWP(0x50,$out),$inout5); + &lea ($out,&DWP(0x60,$out)); + &movdqu ($inout5,&QWP(0x50,$inp)); + &lea ($inp,&DWP(0x60,$inp)); +&set_label("ecb_dec_loop6_enter"); + + &call ("_aesni_decrypt6"); + + &mov ($key,$key_); # restore $key + &mov ($rounds,$rounds_); # restore $rounds + &sub ($len,0x60); + &jnc (&label("ecb_dec_loop6")); + + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + &movups (&QWP(0x30,$out),$inout3); + &movups (&QWP(0x40,$out),$inout4); + &movups (&QWP(0x50,$out),$inout5); + &lea ($out,&DWP(0x60,$out)); + &add ($len,0x60); + &jz (&label("ecb_ret")); + +&set_label("ecb_dec_tail"); + &movups ($inout0,&QWP(0,$inp)); + &cmp ($len,0x20); + &jb (&label("ecb_dec_one")); + &movups ($inout1,&QWP(0x10,$inp)); + &je (&label("ecb_dec_two")); + &movups ($inout2,&QWP(0x20,$inp)); + &cmp ($len,0x40); + &jb (&label("ecb_dec_three")); + &movups ($inout3,&QWP(0x30,$inp)); + &je (&label("ecb_dec_four")); + &movups ($inout4,&QWP(0x40,$inp)); + &xorps ($inout5,$inout5); + &call ("_aesni_decrypt6"); + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + &movups (&QWP(0x30,$out),$inout3); + &movups (&QWP(0x40,$out),$inout4); + &jmp (&label("ecb_ret")); + +&set_label("ecb_dec_one",16); + if ($inline) + { &aesni_inline_generate1("dec"); } + else + { &call ("_aesni_decrypt1"); } + &movups (&QWP(0,$out),$inout0); + &jmp (&label("ecb_ret")); + +&set_label("ecb_dec_two",16); + &xorps ($inout2,$inout2); + &call ("_aesni_decrypt3"); + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &jmp (&label("ecb_ret")); + +&set_label("ecb_dec_three",16); + &call ("_aesni_decrypt3"); + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + &jmp (&label("ecb_ret")); + +&set_label("ecb_dec_four",16); + &call ("_aesni_decrypt4"); + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + &movups (&QWP(0x30,$out),$inout3); + +&set_label("ecb_ret"); +&function_end("aesni_ecb_encrypt"); + +###################################################################### +# void aesni_ccm64_[en|de]crypt_blocks (const void *in, void *out, +# size_t blocks, const AES_KEY *key, +# const char *ivec,char *cmac); +# +# Handles only complete blocks, operates on 64-bit counter and +# does not update *ivec! Nor does it finalize CMAC value +# (see engine/eng_aesni.c for details) +# +{ my $cmac=$inout1; +&function_begin("aesni_ccm64_encrypt_blocks"); + &mov ($inp,&wparam(0)); + &mov ($out,&wparam(1)); + &mov ($len,&wparam(2)); + &mov ($key,&wparam(3)); + &mov ($rounds_,&wparam(4)); + &mov ($rounds,&wparam(5)); + &mov ($key_,"esp"); + &sub ("esp",60); + &and ("esp",-16); # align stack + &mov (&DWP(48,"esp"),$key_); + + &movdqu ($ivec,&QWP(0,$rounds_)); # load ivec + &movdqu ($cmac,&QWP(0,$rounds)); # load cmac + &mov ($rounds,&DWP(240,$key)); + + # compose byte-swap control mask for pshufb on stack + &mov (&DWP(0,"esp"),0x0c0d0e0f); + &mov (&DWP(4,"esp"),0x08090a0b); + &mov (&DWP(8,"esp"),0x04050607); + &mov (&DWP(12,"esp"),0x00010203); + + # compose counter increment vector on stack + &mov ($rounds_,1); + &xor ($key_,$key_); + &mov (&DWP(16,"esp"),$rounds_); + &mov (&DWP(20,"esp"),$key_); + &mov (&DWP(24,"esp"),$key_); + &mov (&DWP(28,"esp"),$key_); + + &shr ($rounds,1); + &lea ($key_,&DWP(0,$key)); + &movdqa ($inout3,&QWP(0,"esp")); + &movdqa ($inout0,$ivec); + &mov ($rounds_,$rounds); + &pshufb ($ivec,$inout3); + +&set_label("ccm64_enc_outer"); + &$movekey ($rndkey0,&QWP(0,$key_)); + &mov ($rounds,$rounds_); + &movups ($in0,&QWP(0,$inp)); + + &xorps ($inout0,$rndkey0); + &$movekey ($rndkey1,&QWP(16,$key_)); + &xorps ($rndkey0,$in0); + &lea ($key,&DWP(32,$key_)); + &xorps ($cmac,$rndkey0); # cmac^=inp + &$movekey ($rndkey0,&QWP(0,$key)); + +&set_label("ccm64_enc2_loop"); + &aesenc ($inout0,$rndkey1); + &dec ($rounds); + &aesenc ($cmac,$rndkey1); + &$movekey ($rndkey1,&QWP(16,$key)); + &aesenc ($inout0,$rndkey0); + &lea ($key,&DWP(32,$key)); + &aesenc ($cmac,$rndkey0); + &$movekey ($rndkey0,&QWP(0,$key)); + &jnz (&label("ccm64_enc2_loop")); + &aesenc ($inout0,$rndkey1); + &aesenc ($cmac,$rndkey1); + &paddq ($ivec,&QWP(16,"esp")); + &aesenclast ($inout0,$rndkey0); + &aesenclast ($cmac,$rndkey0); + + &dec ($len); + &lea ($inp,&DWP(16,$inp)); + &xorps ($in0,$inout0); # inp^=E(ivec) + &movdqa ($inout0,$ivec); + &movups (&QWP(0,$out),$in0); # save output + &lea ($out,&DWP(16,$out)); + &pshufb ($inout0,$inout3); + &jnz (&label("ccm64_enc_outer")); + + &mov ("esp",&DWP(48,"esp")); + &mov ($out,&wparam(5)); + &movups (&QWP(0,$out),$cmac); +&function_end("aesni_ccm64_encrypt_blocks"); + +&function_begin("aesni_ccm64_decrypt_blocks"); + &mov ($inp,&wparam(0)); + &mov ($out,&wparam(1)); + &mov ($len,&wparam(2)); + &mov ($key,&wparam(3)); + &mov ($rounds_,&wparam(4)); + &mov ($rounds,&wparam(5)); + &mov ($key_,"esp"); + &sub ("esp",60); + &and ("esp",-16); # align stack + &mov (&DWP(48,"esp"),$key_); + + &movdqu ($ivec,&QWP(0,$rounds_)); # load ivec + &movdqu ($cmac,&QWP(0,$rounds)); # load cmac + &mov ($rounds,&DWP(240,$key)); + + # compose byte-swap control mask for pshufb on stack + &mov (&DWP(0,"esp"),0x0c0d0e0f); + &mov (&DWP(4,"esp"),0x08090a0b); + &mov (&DWP(8,"esp"),0x04050607); + &mov (&DWP(12,"esp"),0x00010203); + + # compose counter increment vector on stack + &mov ($rounds_,1); + &xor ($key_,$key_); + &mov (&DWP(16,"esp"),$rounds_); + &mov (&DWP(20,"esp"),$key_); + &mov (&DWP(24,"esp"),$key_); + &mov (&DWP(28,"esp"),$key_); + + &movdqa ($inout3,&QWP(0,"esp")); # bswap mask + &movdqa ($inout0,$ivec); + + &mov ($key_,$key); + &mov ($rounds_,$rounds); + + &pshufb ($ivec,$inout3); + if ($inline) + { &aesni_inline_generate1("enc"); } + else + { &call ("_aesni_encrypt1"); } + &movups ($in0,&QWP(0,$inp)); # load inp + &paddq ($ivec,&QWP(16,"esp")); + &lea ($inp,&QWP(16,$inp)); + &jmp (&label("ccm64_dec_outer")); + +&set_label("ccm64_dec_outer",16); + &xorps ($in0,$inout0); # inp ^= E(ivec) + &movdqa ($inout0,$ivec); + &mov ($rounds,$rounds_); + &movups (&QWP(0,$out),$in0); # save output + &lea ($out,&DWP(16,$out)); + &pshufb ($inout0,$inout3); + + &sub ($len,1); + &jz (&label("ccm64_dec_break")); + + &$movekey ($rndkey0,&QWP(0,$key_)); + &shr ($rounds,1); + &$movekey ($rndkey1,&QWP(16,$key_)); + &xorps ($in0,$rndkey0); + &lea ($key,&DWP(32,$key_)); + &xorps ($inout0,$rndkey0); + &xorps ($cmac,$in0); # cmac^=out + &$movekey ($rndkey0,&QWP(0,$key)); + +&set_label("ccm64_dec2_loop"); + &aesenc ($inout0,$rndkey1); + &dec ($rounds); + &aesenc ($cmac,$rndkey1); + &$movekey ($rndkey1,&QWP(16,$key)); + &aesenc ($inout0,$rndkey0); + &lea ($key,&DWP(32,$key)); + &aesenc ($cmac,$rndkey0); + &$movekey ($rndkey0,&QWP(0,$key)); + &jnz (&label("ccm64_dec2_loop")); + &movups ($in0,&QWP(0,$inp)); # load inp + &paddq ($ivec,&QWP(16,"esp")); + &aesenc ($inout0,$rndkey1); + &aesenc ($cmac,$rndkey1); + &lea ($inp,&QWP(16,$inp)); + &aesenclast ($inout0,$rndkey0); + &aesenclast ($cmac,$rndkey0); + &jmp (&label("ccm64_dec_outer")); + +&set_label("ccm64_dec_break",16); + &mov ($key,$key_); + if ($inline) + { &aesni_inline_generate1("enc",$cmac,$in0); } + else + { &call ("_aesni_encrypt1",$cmac); } + + &mov ("esp",&DWP(48,"esp")); + &mov ($out,&wparam(5)); + &movups (&QWP(0,$out),$cmac); +&function_end("aesni_ccm64_decrypt_blocks"); +} + +###################################################################### +# void aesni_ctr32_encrypt_blocks (const void *in, void *out, +# size_t blocks, const AES_KEY *key, +# const char *ivec); +# +# Handles only complete blocks, operates on 32-bit counter and +# does not update *ivec! (see engine/eng_aesni.c for details) +# +# stack layout: +# 0 pshufb mask +# 16 vector addend: 0,6,6,6 +# 32 counter-less ivec +# 48 1st triplet of counter vector +# 64 2nd triplet of counter vector +# 80 saved %esp + +&function_begin("aesni_ctr32_encrypt_blocks"); + &mov ($inp,&wparam(0)); + &mov ($out,&wparam(1)); + &mov ($len,&wparam(2)); + &mov ($key,&wparam(3)); + &mov ($rounds_,&wparam(4)); + &mov ($key_,"esp"); + &sub ("esp",88); + &and ("esp",-16); # align stack + &mov (&DWP(80,"esp"),$key_); + + &cmp ($len,1); + &je (&label("ctr32_one_shortcut")); + + &movdqu ($inout5,&QWP(0,$rounds_)); # load ivec + + # compose byte-swap control mask for pshufb on stack + &mov (&DWP(0,"esp"),0x0c0d0e0f); + &mov (&DWP(4,"esp"),0x08090a0b); + &mov (&DWP(8,"esp"),0x04050607); + &mov (&DWP(12,"esp"),0x00010203); + + # compose counter increment vector on stack + &mov ($rounds,6); + &xor ($key_,$key_); + &mov (&DWP(16,"esp"),$rounds); + &mov (&DWP(20,"esp"),$rounds); + &mov (&DWP(24,"esp"),$rounds); + &mov (&DWP(28,"esp"),$key_); + + &pextrd ($rounds_,$inout5,3); # pull 32-bit counter + &pinsrd ($inout5,$key_,3); # wipe 32-bit counter + + &mov ($rounds,&DWP(240,$key)); # key->rounds + + # compose 2 vectors of 3x32-bit counters + &bswap ($rounds_); + &pxor ($rndkey1,$rndkey1); + &pxor ($rndkey0,$rndkey0); + &movdqa ($inout0,&QWP(0,"esp")); # load byte-swap mask + &pinsrd ($rndkey1,$rounds_,0); + &lea ($key_,&DWP(3,$rounds_)); + &pinsrd ($rndkey0,$key_,0); + &inc ($rounds_); + &pinsrd ($rndkey1,$rounds_,1); + &inc ($key_); + &pinsrd ($rndkey0,$key_,1); + &inc ($rounds_); + &pinsrd ($rndkey1,$rounds_,2); + &inc ($key_); + &pinsrd ($rndkey0,$key_,2); + &movdqa (&QWP(48,"esp"),$rndkey1); # save 1st triplet + &pshufb ($rndkey1,$inout0); # byte swap + &movdqa (&QWP(64,"esp"),$rndkey0); # save 2nd triplet + &pshufb ($rndkey0,$inout0); # byte swap + + &pshufd ($inout0,$rndkey1,3<<6); # place counter to upper dword + &pshufd ($inout1,$rndkey1,2<<6); + &cmp ($len,6); + &jb (&label("ctr32_tail")); + &movdqa (&QWP(32,"esp"),$inout5); # save counter-less ivec + &shr ($rounds,1); + &mov ($key_,$key); # backup $key + &mov ($rounds_,$rounds); # backup $rounds + &sub ($len,6); + &jmp (&label("ctr32_loop6")); + +&set_label("ctr32_loop6",16); + &pshufd ($inout2,$rndkey1,1<<6); + &movdqa ($rndkey1,&QWP(32,"esp")); # pull counter-less ivec + &pshufd ($inout3,$rndkey0,3<<6); + &por ($inout0,$rndkey1); # merge counter-less ivec + &pshufd ($inout4,$rndkey0,2<<6); + &por ($inout1,$rndkey1); + &pshufd ($inout5,$rndkey0,1<<6); + &por ($inout2,$rndkey1); + &por ($inout3,$rndkey1); + &por ($inout4,$rndkey1); + &por ($inout5,$rndkey1); + + # inlining _aesni_encrypt6's prologue gives ~4% improvement... + &$movekey ($rndkey0,&QWP(0,$key_)); + &$movekey ($rndkey1,&QWP(16,$key_)); + &lea ($key,&DWP(32,$key_)); + &dec ($rounds); + &pxor ($inout0,$rndkey0); + &pxor ($inout1,$rndkey0); + &aesenc ($inout0,$rndkey1); + &pxor ($inout2,$rndkey0); + &aesenc ($inout1,$rndkey1); + &pxor ($inout3,$rndkey0); + &aesenc ($inout2,$rndkey1); + &pxor ($inout4,$rndkey0); + &aesenc ($inout3,$rndkey1); + &pxor ($inout5,$rndkey0); + &aesenc ($inout4,$rndkey1); + &$movekey ($rndkey0,&QWP(0,$key)); + &aesenc ($inout5,$rndkey1); + + &call (&label("_aesni_encrypt6_enter")); + + &movups ($rndkey1,&QWP(0,$inp)); + &movups ($rndkey0,&QWP(0x10,$inp)); + &xorps ($inout0,$rndkey1); + &movups ($rndkey1,&QWP(0x20,$inp)); + &xorps ($inout1,$rndkey0); + &movups (&QWP(0,$out),$inout0); + &movdqa ($rndkey0,&QWP(16,"esp")); # load increment + &xorps ($inout2,$rndkey1); + &movdqa ($rndkey1,&QWP(48,"esp")); # load 1st triplet + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + + &paddd ($rndkey1,$rndkey0); # 1st triplet increment + &paddd ($rndkey0,&QWP(64,"esp")); # 2nd triplet increment + &movdqa ($inout0,&QWP(0,"esp")); # load byte swap mask + + &movups ($inout1,&QWP(0x30,$inp)); + &movups ($inout2,&QWP(0x40,$inp)); + &xorps ($inout3,$inout1); + &movups ($inout1,&QWP(0x50,$inp)); + &lea ($inp,&DWP(0x60,$inp)); + &movdqa (&QWP(48,"esp"),$rndkey1); # save 1st triplet + &pshufb ($rndkey1,$inout0); # byte swap + &xorps ($inout4,$inout2); + &movups (&QWP(0x30,$out),$inout3); + &xorps ($inout5,$inout1); + &movdqa (&QWP(64,"esp"),$rndkey0); # save 2nd triplet + &pshufb ($rndkey0,$inout0); # byte swap + &movups (&QWP(0x40,$out),$inout4); + &pshufd ($inout0,$rndkey1,3<<6); + &movups (&QWP(0x50,$out),$inout5); + &lea ($out,&DWP(0x60,$out)); + + &mov ($rounds,$rounds_); + &pshufd ($inout1,$rndkey1,2<<6); + &sub ($len,6); + &jnc (&label("ctr32_loop6")); + + &add ($len,6); + &jz (&label("ctr32_ret")); + &mov ($key,$key_); + &lea ($rounds,&DWP(1,"",$rounds,2)); # restore $rounds + &movdqa ($inout5,&QWP(32,"esp")); # pull count-less ivec + +&set_label("ctr32_tail"); + &por ($inout0,$inout5); + &cmp ($len,2); + &jb (&label("ctr32_one")); + + &pshufd ($inout2,$rndkey1,1<<6); + &por ($inout1,$inout5); + &je (&label("ctr32_two")); + + &pshufd ($inout3,$rndkey0,3<<6); + &por ($inout2,$inout5); + &cmp ($len,4); + &jb (&label("ctr32_three")); + + &pshufd ($inout4,$rndkey0,2<<6); + &por ($inout3,$inout5); + &je (&label("ctr32_four")); + + &por ($inout4,$inout5); + &call ("_aesni_encrypt6"); + &movups ($rndkey1,&QWP(0,$inp)); + &movups ($rndkey0,&QWP(0x10,$inp)); + &xorps ($inout0,$rndkey1); + &movups ($rndkey1,&QWP(0x20,$inp)); + &xorps ($inout1,$rndkey0); + &movups ($rndkey0,&QWP(0x30,$inp)); + &xorps ($inout2,$rndkey1); + &movups ($rndkey1,&QWP(0x40,$inp)); + &xorps ($inout3,$rndkey0); + &movups (&QWP(0,$out),$inout0); + &xorps ($inout4,$rndkey1); + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + &movups (&QWP(0x30,$out),$inout3); + &movups (&QWP(0x40,$out),$inout4); + &jmp (&label("ctr32_ret")); + +&set_label("ctr32_one_shortcut",16); + &movups ($inout0,&QWP(0,$rounds_)); # load ivec + &mov ($rounds,&DWP(240,$key)); + +&set_label("ctr32_one"); + if ($inline) + { &aesni_inline_generate1("enc"); } + else + { &call ("_aesni_encrypt1"); } + &movups ($in0,&QWP(0,$inp)); + &xorps ($in0,$inout0); + &movups (&QWP(0,$out),$in0); + &jmp (&label("ctr32_ret")); + +&set_label("ctr32_two",16); + &call ("_aesni_encrypt3"); + &movups ($inout3,&QWP(0,$inp)); + &movups ($inout4,&QWP(0x10,$inp)); + &xorps ($inout0,$inout3); + &xorps ($inout1,$inout4); + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &jmp (&label("ctr32_ret")); + +&set_label("ctr32_three",16); + &call ("_aesni_encrypt3"); + &movups ($inout3,&QWP(0,$inp)); + &movups ($inout4,&QWP(0x10,$inp)); + &xorps ($inout0,$inout3); + &movups ($inout5,&QWP(0x20,$inp)); + &xorps ($inout1,$inout4); + &movups (&QWP(0,$out),$inout0); + &xorps ($inout2,$inout5); + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + &jmp (&label("ctr32_ret")); + +&set_label("ctr32_four",16); + &call ("_aesni_encrypt4"); + &movups ($inout4,&QWP(0,$inp)); + &movups ($inout5,&QWP(0x10,$inp)); + &movups ($rndkey1,&QWP(0x20,$inp)); + &xorps ($inout0,$inout4); + &movups ($rndkey0,&QWP(0x30,$inp)); + &xorps ($inout1,$inout5); + &movups (&QWP(0,$out),$inout0); + &xorps ($inout2,$rndkey1); + &movups (&QWP(0x10,$out),$inout1); + &xorps ($inout3,$rndkey0); + &movups (&QWP(0x20,$out),$inout2); + &movups (&QWP(0x30,$out),$inout3); + +&set_label("ctr32_ret"); + &mov ("esp",&DWP(80,"esp")); +&function_end("aesni_ctr32_encrypt_blocks"); + +###################################################################### +# void aesni_xts_[en|de]crypt(const char *inp,char *out,size_t len, +# const AES_KEY *key1, const AES_KEY *key2 +# const unsigned char iv[16]); +# +{ my ($tweak,$twtmp,$twres,$twmask)=($rndkey1,$rndkey0,$inout0,$inout1); + +&function_begin("aesni_xts_encrypt"); + &mov ($key,&wparam(4)); # key2 + &mov ($inp,&wparam(5)); # clear-text tweak + + &mov ($rounds,&DWP(240,$key)); # key2->rounds + &movups ($inout0,&QWP(0,$inp)); + if ($inline) + { &aesni_inline_generate1("enc"); } + else + { &call ("_aesni_encrypt1"); } + + &mov ($inp,&wparam(0)); + &mov ($out,&wparam(1)); + &mov ($len,&wparam(2)); + &mov ($key,&wparam(3)); # key1 + + &mov ($key_,"esp"); + &sub ("esp",16*7+8); + &mov ($rounds,&DWP(240,$key)); # key1->rounds + &and ("esp",-16); # align stack + + &mov (&DWP(16*6+0,"esp"),0x87); # compose the magic constant + &mov (&DWP(16*6+4,"esp"),0); + &mov (&DWP(16*6+8,"esp"),1); + &mov (&DWP(16*6+12,"esp"),0); + &mov (&DWP(16*7+0,"esp"),$len); # save original $len + &mov (&DWP(16*7+4,"esp"),$key_); # save original %esp + + &movdqa ($tweak,$inout0); + &pxor ($twtmp,$twtmp); + &movdqa ($twmask,&QWP(6*16,"esp")); # 0x0...010...87 + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + + &and ($len,-16); + &mov ($key_,$key); # backup $key + &mov ($rounds_,$rounds); # backup $rounds + &sub ($len,16*6); + &jc (&label("xts_enc_short")); + + &shr ($rounds,1); + &mov ($rounds_,$rounds); + &jmp (&label("xts_enc_loop6")); + +&set_label("xts_enc_loop6",16); + for ($i=0;$i<4;$i++) { + &pshufd ($twres,$twtmp,0x13); + &pxor ($twtmp,$twtmp); + &movdqa (&QWP(16*$i,"esp"),$tweak); + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($twres,$twmask); # isolate carry and residue + &pcmpgtd ($twtmp,$tweak); # broadcast upper bits + &pxor ($tweak,$twres); + } + &pshufd ($inout5,$twtmp,0x13); + &movdqa (&QWP(16*$i++,"esp"),$tweak); + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &$movekey ($rndkey0,&QWP(0,$key_)); + &pand ($inout5,$twmask); # isolate carry and residue + &movups ($inout0,&QWP(0,$inp)); # load input + &pxor ($inout5,$tweak); + + # inline _aesni_encrypt6 prologue and flip xor with tweak and key[0] + &movdqu ($inout1,&QWP(16*1,$inp)); + &xorps ($inout0,$rndkey0); # input^=rndkey[0] + &movdqu ($inout2,&QWP(16*2,$inp)); + &pxor ($inout1,$rndkey0); + &movdqu ($inout3,&QWP(16*3,$inp)); + &pxor ($inout2,$rndkey0); + &movdqu ($inout4,&QWP(16*4,$inp)); + &pxor ($inout3,$rndkey0); + &movdqu ($rndkey1,&QWP(16*5,$inp)); + &pxor ($inout4,$rndkey0); + &lea ($inp,&DWP(16*6,$inp)); + &pxor ($inout0,&QWP(16*0,"esp")); # input^=tweak + &movdqa (&QWP(16*$i,"esp"),$inout5); # save last tweak + &pxor ($inout5,$rndkey1); + + &$movekey ($rndkey1,&QWP(16,$key_)); + &lea ($key,&DWP(32,$key_)); + &pxor ($inout1,&QWP(16*1,"esp")); + &aesenc ($inout0,$rndkey1); + &pxor ($inout2,&QWP(16*2,"esp")); + &aesenc ($inout1,$rndkey1); + &pxor ($inout3,&QWP(16*3,"esp")); + &dec ($rounds); + &aesenc ($inout2,$rndkey1); + &pxor ($inout4,&QWP(16*4,"esp")); + &aesenc ($inout3,$rndkey1); + &pxor ($inout5,$rndkey0); + &aesenc ($inout4,$rndkey1); + &$movekey ($rndkey0,&QWP(0,$key)); + &aesenc ($inout5,$rndkey1); + &call (&label("_aesni_encrypt6_enter")); + + &movdqa ($tweak,&QWP(16*5,"esp")); # last tweak + &pxor ($twtmp,$twtmp); + &xorps ($inout0,&QWP(16*0,"esp")); # output^=tweak + &pcmpgtd ($twtmp,$tweak); # broadcast upper bits + &xorps ($inout1,&QWP(16*1,"esp")); + &movups (&QWP(16*0,$out),$inout0); # write output + &xorps ($inout2,&QWP(16*2,"esp")); + &movups (&QWP(16*1,$out),$inout1); + &xorps ($inout3,&QWP(16*3,"esp")); + &movups (&QWP(16*2,$out),$inout2); + &xorps ($inout4,&QWP(16*4,"esp")); + &movups (&QWP(16*3,$out),$inout3); + &xorps ($inout5,$tweak); + &movups (&QWP(16*4,$out),$inout4); + &pshufd ($twres,$twtmp,0x13); + &movups (&QWP(16*5,$out),$inout5); + &lea ($out,&DWP(16*6,$out)); + &movdqa ($twmask,&QWP(16*6,"esp")); # 0x0...010...87 + + &pxor ($twtmp,$twtmp); + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($twres,$twmask); # isolate carry and residue + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + &mov ($rounds,$rounds_); # restore $rounds + &pxor ($tweak,$twres); + + &sub ($len,16*6); + &jnc (&label("xts_enc_loop6")); + + &lea ($rounds,&DWP(1,"",$rounds,2)); # restore $rounds + &mov ($key,$key_); # restore $key + &mov ($rounds_,$rounds); + +&set_label("xts_enc_short"); + &add ($len,16*6); + &jz (&label("xts_enc_done6x")); + + &movdqa ($inout3,$tweak); # put aside previous tweak + &cmp ($len,0x20); + &jb (&label("xts_enc_one")); + + &pshufd ($twres,$twtmp,0x13); + &pxor ($twtmp,$twtmp); + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($twres,$twmask); # isolate carry and residue + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + &pxor ($tweak,$twres); + &je (&label("xts_enc_two")); + + &pshufd ($twres,$twtmp,0x13); + &pxor ($twtmp,$twtmp); + &movdqa ($inout4,$tweak); # put aside previous tweak + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($twres,$twmask); # isolate carry and residue + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + &pxor ($tweak,$twres); + &cmp ($len,0x40); + &jb (&label("xts_enc_three")); + + &pshufd ($twres,$twtmp,0x13); + &pxor ($twtmp,$twtmp); + &movdqa ($inout5,$tweak); # put aside previous tweak + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($twres,$twmask); # isolate carry and residue + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + &pxor ($tweak,$twres); + &movdqa (&QWP(16*0,"esp"),$inout3); + &movdqa (&QWP(16*1,"esp"),$inout4); + &je (&label("xts_enc_four")); + + &movdqa (&QWP(16*2,"esp"),$inout5); + &pshufd ($inout5,$twtmp,0x13); + &movdqa (&QWP(16*3,"esp"),$tweak); + &paddq ($tweak,$tweak); # &psllq($inout0,1); + &pand ($inout5,$twmask); # isolate carry and residue + &pxor ($inout5,$tweak); + + &movdqu ($inout0,&QWP(16*0,$inp)); # load input + &movdqu ($inout1,&QWP(16*1,$inp)); + &movdqu ($inout2,&QWP(16*2,$inp)); + &pxor ($inout0,&QWP(16*0,"esp")); # input^=tweak + &movdqu ($inout3,&QWP(16*3,$inp)); + &pxor ($inout1,&QWP(16*1,"esp")); + &movdqu ($inout4,&QWP(16*4,$inp)); + &pxor ($inout2,&QWP(16*2,"esp")); + &lea ($inp,&DWP(16*5,$inp)); + &pxor ($inout3,&QWP(16*3,"esp")); + &movdqa (&QWP(16*4,"esp"),$inout5); # save last tweak + &pxor ($inout4,$inout5); + + &call ("_aesni_encrypt6"); + + &movaps ($tweak,&QWP(16*4,"esp")); # last tweak + &xorps ($inout0,&QWP(16*0,"esp")); # output^=tweak + &xorps ($inout1,&QWP(16*1,"esp")); + &xorps ($inout2,&QWP(16*2,"esp")); + &movups (&QWP(16*0,$out),$inout0); # write output + &xorps ($inout3,&QWP(16*3,"esp")); + &movups (&QWP(16*1,$out),$inout1); + &xorps ($inout4,$tweak); + &movups (&QWP(16*2,$out),$inout2); + &movups (&QWP(16*3,$out),$inout3); + &movups (&QWP(16*4,$out),$inout4); + &lea ($out,&DWP(16*5,$out)); + &jmp (&label("xts_enc_done")); + +&set_label("xts_enc_one",16); + &movups ($inout0,&QWP(16*0,$inp)); # load input + &lea ($inp,&DWP(16*1,$inp)); + &xorps ($inout0,$inout3); # input^=tweak + if ($inline) + { &aesni_inline_generate1("enc"); } + else + { &call ("_aesni_encrypt1"); } + &xorps ($inout0,$inout3); # output^=tweak + &movups (&QWP(16*0,$out),$inout0); # write output + &lea ($out,&DWP(16*1,$out)); + + &movdqa ($tweak,$inout3); # last tweak + &jmp (&label("xts_enc_done")); + +&set_label("xts_enc_two",16); + &movaps ($inout4,$tweak); # put aside last tweak + + &movups ($inout0,&QWP(16*0,$inp)); # load input + &movups ($inout1,&QWP(16*1,$inp)); + &lea ($inp,&DWP(16*2,$inp)); + &xorps ($inout0,$inout3); # input^=tweak + &xorps ($inout1,$inout4); + &xorps ($inout2,$inout2); + + &call ("_aesni_encrypt3"); + + &xorps ($inout0,$inout3); # output^=tweak + &xorps ($inout1,$inout4); + &movups (&QWP(16*0,$out),$inout0); # write output + &movups (&QWP(16*1,$out),$inout1); + &lea ($out,&DWP(16*2,$out)); + + &movdqa ($tweak,$inout4); # last tweak + &jmp (&label("xts_enc_done")); + +&set_label("xts_enc_three",16); + &movaps ($inout5,$tweak); # put aside last tweak + &movups ($inout0,&QWP(16*0,$inp)); # load input + &movups ($inout1,&QWP(16*1,$inp)); + &movups ($inout2,&QWP(16*2,$inp)); + &lea ($inp,&DWP(16*3,$inp)); + &xorps ($inout0,$inout3); # input^=tweak + &xorps ($inout1,$inout4); + &xorps ($inout2,$inout5); + + &call ("_aesni_encrypt3"); + + &xorps ($inout0,$inout3); # output^=tweak + &xorps ($inout1,$inout4); + &xorps ($inout2,$inout5); + &movups (&QWP(16*0,$out),$inout0); # write output + &movups (&QWP(16*1,$out),$inout1); + &movups (&QWP(16*2,$out),$inout2); + &lea ($out,&DWP(16*3,$out)); + + &movdqa ($tweak,$inout5); # last tweak + &jmp (&label("xts_enc_done")); + +&set_label("xts_enc_four",16); + &movaps ($inout4,$tweak); # put aside last tweak + + &movups ($inout0,&QWP(16*0,$inp)); # load input + &movups ($inout1,&QWP(16*1,$inp)); + &movups ($inout2,&QWP(16*2,$inp)); + &xorps ($inout0,&QWP(16*0,"esp")); # input^=tweak + &movups ($inout3,&QWP(16*3,$inp)); + &lea ($inp,&DWP(16*4,$inp)); + &xorps ($inout1,&QWP(16*1,"esp")); + &xorps ($inout2,$inout5); + &xorps ($inout3,$inout4); + + &call ("_aesni_encrypt4"); + + &xorps ($inout0,&QWP(16*0,"esp")); # output^=tweak + &xorps ($inout1,&QWP(16*1,"esp")); + &xorps ($inout2,$inout5); + &movups (&QWP(16*0,$out),$inout0); # write output + &xorps ($inout3,$inout4); + &movups (&QWP(16*1,$out),$inout1); + &movups (&QWP(16*2,$out),$inout2); + &movups (&QWP(16*3,$out),$inout3); + &lea ($out,&DWP(16*4,$out)); + + &movdqa ($tweak,$inout4); # last tweak + &jmp (&label("xts_enc_done")); + +&set_label("xts_enc_done6x",16); # $tweak is pre-calculated + &mov ($len,&DWP(16*7+0,"esp")); # restore original $len + &and ($len,15); + &jz (&label("xts_enc_ret")); + &movdqa ($inout3,$tweak); + &mov (&DWP(16*7+0,"esp"),$len); # save $len%16 + &jmp (&label("xts_enc_steal")); + +&set_label("xts_enc_done",16); + &mov ($len,&DWP(16*7+0,"esp")); # restore original $len + &pxor ($twtmp,$twtmp); + &and ($len,15); + &jz (&label("xts_enc_ret")); + + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + &mov (&DWP(16*7+0,"esp"),$len); # save $len%16 + &pshufd ($inout3,$twtmp,0x13); + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($inout3,&QWP(16*6,"esp")); # isolate carry and residue + &pxor ($inout3,$tweak); + +&set_label("xts_enc_steal"); + &movz ($rounds,&BP(0,$inp)); + &movz ($key,&BP(-16,$out)); + &lea ($inp,&DWP(1,$inp)); + &mov (&BP(-16,$out),&LB($rounds)); + &mov (&BP(0,$out),&LB($key)); + &lea ($out,&DWP(1,$out)); + &sub ($len,1); + &jnz (&label("xts_enc_steal")); + + &sub ($out,&DWP(16*7+0,"esp")); # rewind $out + &mov ($key,$key_); # restore $key + &mov ($rounds,$rounds_); # restore $rounds + + &movups ($inout0,&QWP(-16,$out)); # load input + &xorps ($inout0,$inout3); # input^=tweak + if ($inline) + { &aesni_inline_generate1("enc"); } + else + { &call ("_aesni_encrypt1"); } + &xorps ($inout0,$inout3); # output^=tweak + &movups (&QWP(-16,$out),$inout0); # write output + +&set_label("xts_enc_ret"); + &mov ("esp",&DWP(16*7+4,"esp")); # restore %esp +&function_end("aesni_xts_encrypt"); + +&function_begin("aesni_xts_decrypt"); + &mov ($key,&wparam(4)); # key2 + &mov ($inp,&wparam(5)); # clear-text tweak + + &mov ($rounds,&DWP(240,$key)); # key2->rounds + &movups ($inout0,&QWP(0,$inp)); + if ($inline) + { &aesni_inline_generate1("enc"); } + else + { &call ("_aesni_encrypt1"); } + + &mov ($inp,&wparam(0)); + &mov ($out,&wparam(1)); + &mov ($len,&wparam(2)); + &mov ($key,&wparam(3)); # key1 + + &mov ($key_,"esp"); + &sub ("esp",16*7+8); + &and ("esp",-16); # align stack + + &xor ($rounds_,$rounds_); # if(len%16) len-=16; + &test ($len,15); + &setnz (&LB($rounds_)); + &shl ($rounds_,4); + &sub ($len,$rounds_); + + &mov (&DWP(16*6+0,"esp"),0x87); # compose the magic constant + &mov (&DWP(16*6+4,"esp"),0); + &mov (&DWP(16*6+8,"esp"),1); + &mov (&DWP(16*6+12,"esp"),0); + &mov (&DWP(16*7+0,"esp"),$len); # save original $len + &mov (&DWP(16*7+4,"esp"),$key_); # save original %esp + + &mov ($rounds,&DWP(240,$key)); # key1->rounds + &mov ($key_,$key); # backup $key + &mov ($rounds_,$rounds); # backup $rounds + + &movdqa ($tweak,$inout0); + &pxor ($twtmp,$twtmp); + &movdqa ($twmask,&QWP(6*16,"esp")); # 0x0...010...87 + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + + &and ($len,-16); + &sub ($len,16*6); + &jc (&label("xts_dec_short")); + + &shr ($rounds,1); + &mov ($rounds_,$rounds); + &jmp (&label("xts_dec_loop6")); + +&set_label("xts_dec_loop6",16); + for ($i=0;$i<4;$i++) { + &pshufd ($twres,$twtmp,0x13); + &pxor ($twtmp,$twtmp); + &movdqa (&QWP(16*$i,"esp"),$tweak); + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($twres,$twmask); # isolate carry and residue + &pcmpgtd ($twtmp,$tweak); # broadcast upper bits + &pxor ($tweak,$twres); + } + &pshufd ($inout5,$twtmp,0x13); + &movdqa (&QWP(16*$i++,"esp"),$tweak); + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &$movekey ($rndkey0,&QWP(0,$key_)); + &pand ($inout5,$twmask); # isolate carry and residue + &movups ($inout0,&QWP(0,$inp)); # load input + &pxor ($inout5,$tweak); + + # inline _aesni_encrypt6 prologue and flip xor with tweak and key[0] + &movdqu ($inout1,&QWP(16*1,$inp)); + &xorps ($inout0,$rndkey0); # input^=rndkey[0] + &movdqu ($inout2,&QWP(16*2,$inp)); + &pxor ($inout1,$rndkey0); + &movdqu ($inout3,&QWP(16*3,$inp)); + &pxor ($inout2,$rndkey0); + &movdqu ($inout4,&QWP(16*4,$inp)); + &pxor ($inout3,$rndkey0); + &movdqu ($rndkey1,&QWP(16*5,$inp)); + &pxor ($inout4,$rndkey0); + &lea ($inp,&DWP(16*6,$inp)); + &pxor ($inout0,&QWP(16*0,"esp")); # input^=tweak + &movdqa (&QWP(16*$i,"esp"),$inout5); # save last tweak + &pxor ($inout5,$rndkey1); + + &$movekey ($rndkey1,&QWP(16,$key_)); + &lea ($key,&DWP(32,$key_)); + &pxor ($inout1,&QWP(16*1,"esp")); + &aesdec ($inout0,$rndkey1); + &pxor ($inout2,&QWP(16*2,"esp")); + &aesdec ($inout1,$rndkey1); + &pxor ($inout3,&QWP(16*3,"esp")); + &dec ($rounds); + &aesdec ($inout2,$rndkey1); + &pxor ($inout4,&QWP(16*4,"esp")); + &aesdec ($inout3,$rndkey1); + &pxor ($inout5,$rndkey0); + &aesdec ($inout4,$rndkey1); + &$movekey ($rndkey0,&QWP(0,$key)); + &aesdec ($inout5,$rndkey1); + &call (&label("_aesni_decrypt6_enter")); + + &movdqa ($tweak,&QWP(16*5,"esp")); # last tweak + &pxor ($twtmp,$twtmp); + &xorps ($inout0,&QWP(16*0,"esp")); # output^=tweak + &pcmpgtd ($twtmp,$tweak); # broadcast upper bits + &xorps ($inout1,&QWP(16*1,"esp")); + &movups (&QWP(16*0,$out),$inout0); # write output + &xorps ($inout2,&QWP(16*2,"esp")); + &movups (&QWP(16*1,$out),$inout1); + &xorps ($inout3,&QWP(16*3,"esp")); + &movups (&QWP(16*2,$out),$inout2); + &xorps ($inout4,&QWP(16*4,"esp")); + &movups (&QWP(16*3,$out),$inout3); + &xorps ($inout5,$tweak); + &movups (&QWP(16*4,$out),$inout4); + &pshufd ($twres,$twtmp,0x13); + &movups (&QWP(16*5,$out),$inout5); + &lea ($out,&DWP(16*6,$out)); + &movdqa ($twmask,&QWP(16*6,"esp")); # 0x0...010...87 + + &pxor ($twtmp,$twtmp); + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($twres,$twmask); # isolate carry and residue + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + &mov ($rounds,$rounds_); # restore $rounds + &pxor ($tweak,$twres); + + &sub ($len,16*6); + &jnc (&label("xts_dec_loop6")); + + &lea ($rounds,&DWP(1,"",$rounds,2)); # restore $rounds + &mov ($key,$key_); # restore $key + &mov ($rounds_,$rounds); + +&set_label("xts_dec_short"); + &add ($len,16*6); + &jz (&label("xts_dec_done6x")); + + &movdqa ($inout3,$tweak); # put aside previous tweak + &cmp ($len,0x20); + &jb (&label("xts_dec_one")); + + &pshufd ($twres,$twtmp,0x13); + &pxor ($twtmp,$twtmp); + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($twres,$twmask); # isolate carry and residue + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + &pxor ($tweak,$twres); + &je (&label("xts_dec_two")); + + &pshufd ($twres,$twtmp,0x13); + &pxor ($twtmp,$twtmp); + &movdqa ($inout4,$tweak); # put aside previous tweak + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($twres,$twmask); # isolate carry and residue + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + &pxor ($tweak,$twres); + &cmp ($len,0x40); + &jb (&label("xts_dec_three")); + + &pshufd ($twres,$twtmp,0x13); + &pxor ($twtmp,$twtmp); + &movdqa ($inout5,$tweak); # put aside previous tweak + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($twres,$twmask); # isolate carry and residue + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + &pxor ($tweak,$twres); + &movdqa (&QWP(16*0,"esp"),$inout3); + &movdqa (&QWP(16*1,"esp"),$inout4); + &je (&label("xts_dec_four")); + + &movdqa (&QWP(16*2,"esp"),$inout5); + &pshufd ($inout5,$twtmp,0x13); + &movdqa (&QWP(16*3,"esp"),$tweak); + &paddq ($tweak,$tweak); # &psllq($inout0,1); + &pand ($inout5,$twmask); # isolate carry and residue + &pxor ($inout5,$tweak); + + &movdqu ($inout0,&QWP(16*0,$inp)); # load input + &movdqu ($inout1,&QWP(16*1,$inp)); + &movdqu ($inout2,&QWP(16*2,$inp)); + &pxor ($inout0,&QWP(16*0,"esp")); # input^=tweak + &movdqu ($inout3,&QWP(16*3,$inp)); + &pxor ($inout1,&QWP(16*1,"esp")); + &movdqu ($inout4,&QWP(16*4,$inp)); + &pxor ($inout2,&QWP(16*2,"esp")); + &lea ($inp,&DWP(16*5,$inp)); + &pxor ($inout3,&QWP(16*3,"esp")); + &movdqa (&QWP(16*4,"esp"),$inout5); # save last tweak + &pxor ($inout4,$inout5); + + &call ("_aesni_decrypt6"); + + &movaps ($tweak,&QWP(16*4,"esp")); # last tweak + &xorps ($inout0,&QWP(16*0,"esp")); # output^=tweak + &xorps ($inout1,&QWP(16*1,"esp")); + &xorps ($inout2,&QWP(16*2,"esp")); + &movups (&QWP(16*0,$out),$inout0); # write output + &xorps ($inout3,&QWP(16*3,"esp")); + &movups (&QWP(16*1,$out),$inout1); + &xorps ($inout4,$tweak); + &movups (&QWP(16*2,$out),$inout2); + &movups (&QWP(16*3,$out),$inout3); + &movups (&QWP(16*4,$out),$inout4); + &lea ($out,&DWP(16*5,$out)); + &jmp (&label("xts_dec_done")); + +&set_label("xts_dec_one",16); + &movups ($inout0,&QWP(16*0,$inp)); # load input + &lea ($inp,&DWP(16*1,$inp)); + &xorps ($inout0,$inout3); # input^=tweak + if ($inline) + { &aesni_inline_generate1("dec"); } + else + { &call ("_aesni_decrypt1"); } + &xorps ($inout0,$inout3); # output^=tweak + &movups (&QWP(16*0,$out),$inout0); # write output + &lea ($out,&DWP(16*1,$out)); + + &movdqa ($tweak,$inout3); # last tweak + &jmp (&label("xts_dec_done")); + +&set_label("xts_dec_two",16); + &movaps ($inout4,$tweak); # put aside last tweak + + &movups ($inout0,&QWP(16*0,$inp)); # load input + &movups ($inout1,&QWP(16*1,$inp)); + &lea ($inp,&DWP(16*2,$inp)); + &xorps ($inout0,$inout3); # input^=tweak + &xorps ($inout1,$inout4); + + &call ("_aesni_decrypt3"); + + &xorps ($inout0,$inout3); # output^=tweak + &xorps ($inout1,$inout4); + &movups (&QWP(16*0,$out),$inout0); # write output + &movups (&QWP(16*1,$out),$inout1); + &lea ($out,&DWP(16*2,$out)); + + &movdqa ($tweak,$inout4); # last tweak + &jmp (&label("xts_dec_done")); + +&set_label("xts_dec_three",16); + &movaps ($inout5,$tweak); # put aside last tweak + &movups ($inout0,&QWP(16*0,$inp)); # load input + &movups ($inout1,&QWP(16*1,$inp)); + &movups ($inout2,&QWP(16*2,$inp)); + &lea ($inp,&DWP(16*3,$inp)); + &xorps ($inout0,$inout3); # input^=tweak + &xorps ($inout1,$inout4); + &xorps ($inout2,$inout5); + + &call ("_aesni_decrypt3"); + + &xorps ($inout0,$inout3); # output^=tweak + &xorps ($inout1,$inout4); + &xorps ($inout2,$inout5); + &movups (&QWP(16*0,$out),$inout0); # write output + &movups (&QWP(16*1,$out),$inout1); + &movups (&QWP(16*2,$out),$inout2); + &lea ($out,&DWP(16*3,$out)); + + &movdqa ($tweak,$inout5); # last tweak + &jmp (&label("xts_dec_done")); + +&set_label("xts_dec_four",16); + &movaps ($inout4,$tweak); # put aside last tweak + + &movups ($inout0,&QWP(16*0,$inp)); # load input + &movups ($inout1,&QWP(16*1,$inp)); + &movups ($inout2,&QWP(16*2,$inp)); + &xorps ($inout0,&QWP(16*0,"esp")); # input^=tweak + &movups ($inout3,&QWP(16*3,$inp)); + &lea ($inp,&DWP(16*4,$inp)); + &xorps ($inout1,&QWP(16*1,"esp")); + &xorps ($inout2,$inout5); + &xorps ($inout3,$inout4); + + &call ("_aesni_decrypt4"); + + &xorps ($inout0,&QWP(16*0,"esp")); # output^=tweak + &xorps ($inout1,&QWP(16*1,"esp")); + &xorps ($inout2,$inout5); + &movups (&QWP(16*0,$out),$inout0); # write output + &xorps ($inout3,$inout4); + &movups (&QWP(16*1,$out),$inout1); + &movups (&QWP(16*2,$out),$inout2); + &movups (&QWP(16*3,$out),$inout3); + &lea ($out,&DWP(16*4,$out)); + + &movdqa ($tweak,$inout4); # last tweak + &jmp (&label("xts_dec_done")); + +&set_label("xts_dec_done6x",16); # $tweak is pre-calculated + &mov ($len,&DWP(16*7+0,"esp")); # restore original $len + &and ($len,15); + &jz (&label("xts_dec_ret")); + &mov (&DWP(16*7+0,"esp"),$len); # save $len%16 + &jmp (&label("xts_dec_only_one_more")); + +&set_label("xts_dec_done",16); + &mov ($len,&DWP(16*7+0,"esp")); # restore original $len + &pxor ($twtmp,$twtmp); + &and ($len,15); + &jz (&label("xts_dec_ret")); + + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + &mov (&DWP(16*7+0,"esp"),$len); # save $len%16 + &pshufd ($twres,$twtmp,0x13); + &pxor ($twtmp,$twtmp); + &movdqa ($twmask,&QWP(16*6,"esp")); + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($twres,$twmask); # isolate carry and residue + &pcmpgtd($twtmp,$tweak); # broadcast upper bits + &pxor ($tweak,$twres); + +&set_label("xts_dec_only_one_more"); + &pshufd ($inout3,$twtmp,0x13); + &movdqa ($inout4,$tweak); # put aside previous tweak + &paddq ($tweak,$tweak); # &psllq($tweak,1); + &pand ($inout3,$twmask); # isolate carry and residue + &pxor ($inout3,$tweak); + + &mov ($key,$key_); # restore $key + &mov ($rounds,$rounds_); # restore $rounds + + &movups ($inout0,&QWP(0,$inp)); # load input + &xorps ($inout0,$inout3); # input^=tweak + if ($inline) + { &aesni_inline_generate1("dec"); } + else + { &call ("_aesni_decrypt1"); } + &xorps ($inout0,$inout3); # output^=tweak + &movups (&QWP(0,$out),$inout0); # write output + +&set_label("xts_dec_steal"); + &movz ($rounds,&BP(16,$inp)); + &movz ($key,&BP(0,$out)); + &lea ($inp,&DWP(1,$inp)); + &mov (&BP(0,$out),&LB($rounds)); + &mov (&BP(16,$out),&LB($key)); + &lea ($out,&DWP(1,$out)); + &sub ($len,1); + &jnz (&label("xts_dec_steal")); + + &sub ($out,&DWP(16*7+0,"esp")); # rewind $out + &mov ($key,$key_); # restore $key + &mov ($rounds,$rounds_); # restore $rounds + + &movups ($inout0,&QWP(0,$out)); # load input + &xorps ($inout0,$inout4); # input^=tweak + if ($inline) + { &aesni_inline_generate1("dec"); } + else + { &call ("_aesni_decrypt1"); } + &xorps ($inout0,$inout4); # output^=tweak + &movups (&QWP(0,$out),$inout0); # write output + +&set_label("xts_dec_ret"); + &mov ("esp",&DWP(16*7+4,"esp")); # restore %esp +&function_end("aesni_xts_decrypt"); +} +} + +###################################################################### +# void $PREFIX_cbc_encrypt (const void *inp, void *out, +# size_t length, const AES_KEY *key, +# unsigned char *ivp,const int enc); +&function_begin("${PREFIX}_cbc_encrypt"); + &mov ($inp,&wparam(0)); + &mov ($rounds_,"esp"); + &mov ($out,&wparam(1)); + &sub ($rounds_,24); + &mov ($len,&wparam(2)); + &and ($rounds_,-16); + &mov ($key,&wparam(3)); + &mov ($key_,&wparam(4)); + &test ($len,$len); + &jz (&label("cbc_abort")); + + &cmp (&wparam(5),0); + &xchg ($rounds_,"esp"); # alloca + &movups ($ivec,&QWP(0,$key_)); # load IV + &mov ($rounds,&DWP(240,$key)); + &mov ($key_,$key); # backup $key + &mov (&DWP(16,"esp"),$rounds_); # save original %esp + &mov ($rounds_,$rounds); # backup $rounds + &je (&label("cbc_decrypt")); + + &movaps ($inout0,$ivec); + &cmp ($len,16); + &jb (&label("cbc_enc_tail")); + &sub ($len,16); + &jmp (&label("cbc_enc_loop")); + +&set_label("cbc_enc_loop",16); + &movups ($ivec,&QWP(0,$inp)); # input actually + &lea ($inp,&DWP(16,$inp)); + if ($inline) + { &aesni_inline_generate1("enc",$inout0,$ivec); } + else + { &xorps($inout0,$ivec); &call("_aesni_encrypt1"); } + &mov ($rounds,$rounds_); # restore $rounds + &mov ($key,$key_); # restore $key + &movups (&QWP(0,$out),$inout0); # store output + &lea ($out,&DWP(16,$out)); + &sub ($len,16); + &jnc (&label("cbc_enc_loop")); + &add ($len,16); + &jnz (&label("cbc_enc_tail")); + &movaps ($ivec,$inout0); + &jmp (&label("cbc_ret")); + +&set_label("cbc_enc_tail"); + &mov ("ecx",$len); # zaps $rounds + &data_word(0xA4F3F689); # rep movsb + &mov ("ecx",16); # zero tail + &sub ("ecx",$len); + &xor ("eax","eax"); # zaps $len + &data_word(0xAAF3F689); # rep stosb + &lea ($out,&DWP(-16,$out)); # rewind $out by 1 block + &mov ($rounds,$rounds_); # restore $rounds + &mov ($inp,$out); # $inp and $out are the same + &mov ($key,$key_); # restore $key + &jmp (&label("cbc_enc_loop")); +###################################################################### +&set_label("cbc_decrypt",16); + &cmp ($len,0x50); + &jbe (&label("cbc_dec_tail")); + &movaps (&QWP(0,"esp"),$ivec); # save IV + &sub ($len,0x50); + &jmp (&label("cbc_dec_loop6_enter")); + +&set_label("cbc_dec_loop6",16); + &movaps (&QWP(0,"esp"),$rndkey0); # save IV + &movups (&QWP(0,$out),$inout5); + &lea ($out,&DWP(0x10,$out)); +&set_label("cbc_dec_loop6_enter"); + &movdqu ($inout0,&QWP(0,$inp)); + &movdqu ($inout1,&QWP(0x10,$inp)); + &movdqu ($inout2,&QWP(0x20,$inp)); + &movdqu ($inout3,&QWP(0x30,$inp)); + &movdqu ($inout4,&QWP(0x40,$inp)); + &movdqu ($inout5,&QWP(0x50,$inp)); + + &call ("_aesni_decrypt6"); + + &movups ($rndkey1,&QWP(0,$inp)); + &movups ($rndkey0,&QWP(0x10,$inp)); + &xorps ($inout0,&QWP(0,"esp")); # ^=IV + &xorps ($inout1,$rndkey1); + &movups ($rndkey1,&QWP(0x20,$inp)); + &xorps ($inout2,$rndkey0); + &movups ($rndkey0,&QWP(0x30,$inp)); + &xorps ($inout3,$rndkey1); + &movups ($rndkey1,&QWP(0x40,$inp)); + &xorps ($inout4,$rndkey0); + &movups ($rndkey0,&QWP(0x50,$inp)); # IV + &xorps ($inout5,$rndkey1); + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &lea ($inp,&DWP(0x60,$inp)); + &movups (&QWP(0x20,$out),$inout2); + &mov ($rounds,$rounds_) # restore $rounds + &movups (&QWP(0x30,$out),$inout3); + &mov ($key,$key_); # restore $key + &movups (&QWP(0x40,$out),$inout4); + &lea ($out,&DWP(0x50,$out)); + &sub ($len,0x60); + &ja (&label("cbc_dec_loop6")); + + &movaps ($inout0,$inout5); + &movaps ($ivec,$rndkey0); + &add ($len,0x50); + &jle (&label("cbc_dec_tail_collected")); + &movups (&QWP(0,$out),$inout0); + &lea ($out,&DWP(0x10,$out)); +&set_label("cbc_dec_tail"); + &movups ($inout0,&QWP(0,$inp)); + &movaps ($in0,$inout0); + &cmp ($len,0x10); + &jbe (&label("cbc_dec_one")); + + &movups ($inout1,&QWP(0x10,$inp)); + &movaps ($in1,$inout1); + &cmp ($len,0x20); + &jbe (&label("cbc_dec_two")); + + &movups ($inout2,&QWP(0x20,$inp)); + &cmp ($len,0x30); + &jbe (&label("cbc_dec_three")); + + &movups ($inout3,&QWP(0x30,$inp)); + &cmp ($len,0x40); + &jbe (&label("cbc_dec_four")); + + &movups ($inout4,&QWP(0x40,$inp)); + &movaps (&QWP(0,"esp"),$ivec); # save IV + &movups ($inout0,&QWP(0,$inp)); + &xorps ($inout5,$inout5); + &call ("_aesni_decrypt6"); + &movups ($rndkey1,&QWP(0,$inp)); + &movups ($rndkey0,&QWP(0x10,$inp)); + &xorps ($inout0,&QWP(0,"esp")); # ^= IV + &xorps ($inout1,$rndkey1); + &movups ($rndkey1,&QWP(0x20,$inp)); + &xorps ($inout2,$rndkey0); + &movups ($rndkey0,&QWP(0x30,$inp)); + &xorps ($inout3,$rndkey1); + &movups ($ivec,&QWP(0x40,$inp)); # IV + &xorps ($inout4,$rndkey0); + &movups (&QWP(0,$out),$inout0); + &movups (&QWP(0x10,$out),$inout1); + &movups (&QWP(0x20,$out),$inout2); + &movups (&QWP(0x30,$out),$inout3); + &lea ($out,&DWP(0x40,$out)); + &movaps ($inout0,$inout4); + &sub ($len,0x50); + &jmp (&label("cbc_dec_tail_collected")); + +&set_label("cbc_dec_one",16); + if ($inline) + { &aesni_inline_generate1("dec"); } + else + { &call ("_aesni_decrypt1"); } + &xorps ($inout0,$ivec); + &movaps ($ivec,$in0); + &sub ($len,0x10); + &jmp (&label("cbc_dec_tail_collected")); + +&set_label("cbc_dec_two",16); + &xorps ($inout2,$inout2); + &call ("_aesni_decrypt3"); + &xorps ($inout0,$ivec); + &xorps ($inout1,$in0); + &movups (&QWP(0,$out),$inout0); + &movaps ($inout0,$inout1); + &lea ($out,&DWP(0x10,$out)); + &movaps ($ivec,$in1); + &sub ($len,0x20); + &jmp (&label("cbc_dec_tail_collected")); + +&set_label("cbc_dec_three",16); + &call ("_aesni_decrypt3"); + &xorps ($inout0,$ivec); + &xorps ($inout1,$in0); + &xorps ($inout2,$in1); + &movups (&QWP(0,$out),$inout0); + &movaps ($inout0,$inout2); + &movups (&QWP(0x10,$out),$inout1); + &lea ($out,&DWP(0x20,$out)); + &movups ($ivec,&QWP(0x20,$inp)); + &sub ($len,0x30); + &jmp (&label("cbc_dec_tail_collected")); + +&set_label("cbc_dec_four",16); + &call ("_aesni_decrypt4"); + &movups ($rndkey1,&QWP(0x10,$inp)); + &movups ($rndkey0,&QWP(0x20,$inp)); + &xorps ($inout0,$ivec); + &movups ($ivec,&QWP(0x30,$inp)); + &xorps ($inout1,$in0); + &movups (&QWP(0,$out),$inout0); + &xorps ($inout2,$rndkey1); + &movups (&QWP(0x10,$out),$inout1); + &xorps ($inout3,$rndkey0); + &movups (&QWP(0x20,$out),$inout2); + &lea ($out,&DWP(0x30,$out)); + &movaps ($inout0,$inout3); + &sub ($len,0x40); + +&set_label("cbc_dec_tail_collected"); + &and ($len,15); + &jnz (&label("cbc_dec_tail_partial")); + &movups (&QWP(0,$out),$inout0); + &jmp (&label("cbc_ret")); + +&set_label("cbc_dec_tail_partial",16); + &movaps (&QWP(0,"esp"),$inout0); + &mov ("ecx",16); + &mov ($inp,"esp"); + &sub ("ecx",$len); + &data_word(0xA4F3F689); # rep movsb + +&set_label("cbc_ret"); + &mov ("esp",&DWP(16,"esp")); # pull original %esp + &mov ($key_,&wparam(4)); + &movups (&QWP(0,$key_),$ivec); # output IV +&set_label("cbc_abort"); +&function_end("${PREFIX}_cbc_encrypt"); + +###################################################################### +# Mechanical port from aesni-x86_64.pl. +# +# _aesni_set_encrypt_key is private interface, +# input: +# "eax" const unsigned char *userKey +# $rounds int bits +# $key AES_KEY *key +# output: +# "eax" return code +# $round rounds + +&function_begin_B("_aesni_set_encrypt_key"); + &test ("eax","eax"); + &jz (&label("bad_pointer")); + &test ($key,$key); + &jz (&label("bad_pointer")); + + &movups ("xmm0",&QWP(0,"eax")); # pull first 128 bits of *userKey + &xorps ("xmm4","xmm4"); # low dword of xmm4 is assumed 0 + &lea ($key,&DWP(16,$key)); + &cmp ($rounds,256); + &je (&label("14rounds")); + &cmp ($rounds,192); + &je (&label("12rounds")); + &cmp ($rounds,128); + &jne (&label("bad_keybits")); + +&set_label("10rounds",16); + &mov ($rounds,9); + &$movekey (&QWP(-16,$key),"xmm0"); # round 0 + &aeskeygenassist("xmm1","xmm0",0x01); # round 1 + &call (&label("key_128_cold")); + &aeskeygenassist("xmm1","xmm0",0x2); # round 2 + &call (&label("key_128")); + &aeskeygenassist("xmm1","xmm0",0x04); # round 3 + &call (&label("key_128")); + &aeskeygenassist("xmm1","xmm0",0x08); # round 4 + &call (&label("key_128")); + &aeskeygenassist("xmm1","xmm0",0x10); # round 5 + &call (&label("key_128")); + &aeskeygenassist("xmm1","xmm0",0x20); # round 6 + &call (&label("key_128")); + &aeskeygenassist("xmm1","xmm0",0x40); # round 7 + &call (&label("key_128")); + &aeskeygenassist("xmm1","xmm0",0x80); # round 8 + &call (&label("key_128")); + &aeskeygenassist("xmm1","xmm0",0x1b); # round 9 + &call (&label("key_128")); + &aeskeygenassist("xmm1","xmm0",0x36); # round 10 + &call (&label("key_128")); + &$movekey (&QWP(0,$key),"xmm0"); + &mov (&DWP(80,$key),$rounds); + &xor ("eax","eax"); + &ret(); + +&set_label("key_128",16); + &$movekey (&QWP(0,$key),"xmm0"); + &lea ($key,&DWP(16,$key)); +&set_label("key_128_cold"); + &shufps ("xmm4","xmm0",0b00010000); + &xorps ("xmm0","xmm4"); + &shufps ("xmm4","xmm0",0b10001100); + &xorps ("xmm0","xmm4"); + &shufps ("xmm1","xmm1",0b11111111); # critical path + &xorps ("xmm0","xmm1"); + &ret(); + +&set_label("12rounds",16); + &movq ("xmm2",&QWP(16,"eax")); # remaining 1/3 of *userKey + &mov ($rounds,11); + &$movekey (&QWP(-16,$key),"xmm0") # round 0 + &aeskeygenassist("xmm1","xmm2",0x01); # round 1,2 + &call (&label("key_192a_cold")); + &aeskeygenassist("xmm1","xmm2",0x02); # round 2,3 + &call (&label("key_192b")); + &aeskeygenassist("xmm1","xmm2",0x04); # round 4,5 + &call (&label("key_192a")); + &aeskeygenassist("xmm1","xmm2",0x08); # round 5,6 + &call (&label("key_192b")); + &aeskeygenassist("xmm1","xmm2",0x10); # round 7,8 + &call (&label("key_192a")); + &aeskeygenassist("xmm1","xmm2",0x20); # round 8,9 + &call (&label("key_192b")); + &aeskeygenassist("xmm1","xmm2",0x40); # round 10,11 + &call (&label("key_192a")); + &aeskeygenassist("xmm1","xmm2",0x80); # round 11,12 + &call (&label("key_192b")); + &$movekey (&QWP(0,$key),"xmm0"); + &mov (&DWP(48,$key),$rounds); + &xor ("eax","eax"); + &ret(); + +&set_label("key_192a",16); + &$movekey (&QWP(0,$key),"xmm0"); + &lea ($key,&DWP(16,$key)); +&set_label("key_192a_cold",16); + &movaps ("xmm5","xmm2"); +&set_label("key_192b_warm"); + &shufps ("xmm4","xmm0",0b00010000); + &movdqa ("xmm3","xmm2"); + &xorps ("xmm0","xmm4"); + &shufps ("xmm4","xmm0",0b10001100); + &pslldq ("xmm3",4); + &xorps ("xmm0","xmm4"); + &pshufd ("xmm1","xmm1",0b01010101); # critical path + &pxor ("xmm2","xmm3"); + &pxor ("xmm0","xmm1"); + &pshufd ("xmm3","xmm0",0b11111111); + &pxor ("xmm2","xmm3"); + &ret(); + +&set_label("key_192b",16); + &movaps ("xmm3","xmm0"); + &shufps ("xmm5","xmm0",0b01000100); + &$movekey (&QWP(0,$key),"xmm5"); + &shufps ("xmm3","xmm2",0b01001110); + &$movekey (&QWP(16,$key),"xmm3"); + &lea ($key,&DWP(32,$key)); + &jmp (&label("key_192b_warm")); + +&set_label("14rounds",16); + &movups ("xmm2",&QWP(16,"eax")); # remaining half of *userKey + &mov ($rounds,13); + &lea ($key,&DWP(16,$key)); + &$movekey (&QWP(-32,$key),"xmm0"); # round 0 + &$movekey (&QWP(-16,$key),"xmm2"); # round 1 + &aeskeygenassist("xmm1","xmm2",0x01); # round 2 + &call (&label("key_256a_cold")); + &aeskeygenassist("xmm1","xmm0",0x01); # round 3 + &call (&label("key_256b")); + &aeskeygenassist("xmm1","xmm2",0x02); # round 4 + &call (&label("key_256a")); + &aeskeygenassist("xmm1","xmm0",0x02); # round 5 + &call (&label("key_256b")); + &aeskeygenassist("xmm1","xmm2",0x04); # round 6 + &call (&label("key_256a")); + &aeskeygenassist("xmm1","xmm0",0x04); # round 7 + &call (&label("key_256b")); + &aeskeygenassist("xmm1","xmm2",0x08); # round 8 + &call (&label("key_256a")); + &aeskeygenassist("xmm1","xmm0",0x08); # round 9 + &call (&label("key_256b")); + &aeskeygenassist("xmm1","xmm2",0x10); # round 10 + &call (&label("key_256a")); + &aeskeygenassist("xmm1","xmm0",0x10); # round 11 + &call (&label("key_256b")); + &aeskeygenassist("xmm1","xmm2",0x20); # round 12 + &call (&label("key_256a")); + &aeskeygenassist("xmm1","xmm0",0x20); # round 13 + &call (&label("key_256b")); + &aeskeygenassist("xmm1","xmm2",0x40); # round 14 + &call (&label("key_256a")); + &$movekey (&QWP(0,$key),"xmm0"); + &mov (&DWP(16,$key),$rounds); + &xor ("eax","eax"); + &ret(); + +&set_label("key_256a",16); + &$movekey (&QWP(0,$key),"xmm2"); + &lea ($key,&DWP(16,$key)); +&set_label("key_256a_cold"); + &shufps ("xmm4","xmm0",0b00010000); + &xorps ("xmm0","xmm4"); + &shufps ("xmm4","xmm0",0b10001100); + &xorps ("xmm0","xmm4"); + &shufps ("xmm1","xmm1",0b11111111); # critical path + &xorps ("xmm0","xmm1"); + &ret(); + +&set_label("key_256b",16); + &$movekey (&QWP(0,$key),"xmm0"); + &lea ($key,&DWP(16,$key)); + + &shufps ("xmm4","xmm2",0b00010000); + &xorps ("xmm2","xmm4"); + &shufps ("xmm4","xmm2",0b10001100); + &xorps ("xmm2","xmm4"); + &shufps ("xmm1","xmm1",0b10101010); # critical path + &xorps ("xmm2","xmm1"); + &ret(); + +&set_label("bad_pointer",4); + &mov ("eax",-1); + &ret (); +&set_label("bad_keybits",4); + &mov ("eax",-2); + &ret (); +&function_end_B("_aesni_set_encrypt_key"); + +# int $PREFIX_set_encrypt_key (const unsigned char *userKey, int bits, +# AES_KEY *key) +&function_begin_B("${PREFIX}_set_encrypt_key"); + &mov ("eax",&wparam(0)); + &mov ($rounds,&wparam(1)); + &mov ($key,&wparam(2)); + &call ("_aesni_set_encrypt_key"); + &ret (); +&function_end_B("${PREFIX}_set_encrypt_key"); + +# int $PREFIX_set_decrypt_key (const unsigned char *userKey, int bits, +# AES_KEY *key) +&function_begin_B("${PREFIX}_set_decrypt_key"); + &mov ("eax",&wparam(0)); + &mov ($rounds,&wparam(1)); + &mov ($key,&wparam(2)); + &call ("_aesni_set_encrypt_key"); + &mov ($key,&wparam(2)); + &shl ($rounds,4) # rounds-1 after _aesni_set_encrypt_key + &test ("eax","eax"); + &jnz (&label("dec_key_ret")); + &lea ("eax",&DWP(16,$key,$rounds)); # end of key schedule + + &$movekey ("xmm0",&QWP(0,$key)); # just swap + &$movekey ("xmm1",&QWP(0,"eax")); + &$movekey (&QWP(0,"eax"),"xmm0"); + &$movekey (&QWP(0,$key),"xmm1"); + &lea ($key,&DWP(16,$key)); + &lea ("eax",&DWP(-16,"eax")); + +&set_label("dec_key_inverse"); + &$movekey ("xmm0",&QWP(0,$key)); # swap and inverse + &$movekey ("xmm1",&QWP(0,"eax")); + &aesimc ("xmm0","xmm0"); + &aesimc ("xmm1","xmm1"); + &lea ($key,&DWP(16,$key)); + &lea ("eax",&DWP(-16,"eax")); + &$movekey (&QWP(16,"eax"),"xmm0"); + &$movekey (&QWP(-16,$key),"xmm1"); + &cmp ("eax",$key); + &ja (&label("dec_key_inverse")); + + &$movekey ("xmm0",&QWP(0,$key)); # inverse middle + &aesimc ("xmm0","xmm0"); + &$movekey (&QWP(0,$key),"xmm0"); + + &xor ("eax","eax"); # return success +&set_label("dec_key_ret"); + &ret (); +&function_end_B("${PREFIX}_set_decrypt_key"); +&asciz("AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>"); + +&asm_finish(); diff --git a/crypto/aes/asm/aesni-x86_64.pl b/crypto/aes/asm/aesni-x86_64.pl new file mode 100644 index 00000000..0dbb194b --- /dev/null +++ b/crypto/aes/asm/aesni-x86_64.pl @@ -0,0 +1,3069 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# This module implements support for Intel AES-NI extension. In +# OpenSSL context it's used with Intel engine, but can also be used as +# drop-in replacement for crypto/aes/asm/aes-x86_64.pl [see below for +# details]. +# +# Performance. +# +# Given aes(enc|dec) instructions' latency asymptotic performance for +# non-parallelizable modes such as CBC encrypt is 3.75 cycles per byte +# processed with 128-bit key. And given their throughput asymptotic +# performance for parallelizable modes is 1.25 cycles per byte. Being +# asymptotic limit it's not something you commonly achieve in reality, +# but how close does one get? Below are results collected for +# different modes and block sized. Pairs of numbers are for en-/ +# decryption. +# +# 16-byte 64-byte 256-byte 1-KB 8-KB +# ECB 4.25/4.25 1.38/1.38 1.28/1.28 1.26/1.26 1.26/1.26 +# CTR 5.42/5.42 1.92/1.92 1.44/1.44 1.28/1.28 1.26/1.26 +# CBC 4.38/4.43 4.15/1.43 4.07/1.32 4.07/1.29 4.06/1.28 +# CCM 5.66/9.42 4.42/5.41 4.16/4.40 4.09/4.15 4.06/4.07 +# OFB 5.42/5.42 4.64/4.64 4.44/4.44 4.39/4.39 4.38/4.38 +# CFB 5.73/5.85 5.56/5.62 5.48/5.56 5.47/5.55 5.47/5.55 +# +# ECB, CTR, CBC and CCM results are free from EVP overhead. This means +# that otherwise used 'openssl speed -evp aes-128-??? -engine aesni +# [-decrypt]' will exhibit 10-15% worse results for smaller blocks. +# The results were collected with specially crafted speed.c benchmark +# in order to compare them with results reported in "Intel Advanced +# Encryption Standard (AES) New Instruction Set" White Paper Revision +# 3.0 dated May 2010. All above results are consistently better. This +# module also provides better performance for block sizes smaller than +# 128 bytes in points *not* represented in the above table. +# +# Looking at the results for 8-KB buffer. +# +# CFB and OFB results are far from the limit, because implementation +# uses "generic" CRYPTO_[c|o]fb128_encrypt interfaces relying on +# single-block aesni_encrypt, which is not the most optimal way to go. +# CBC encrypt result is unexpectedly high and there is no documented +# explanation for it. Seemingly there is a small penalty for feeding +# the result back to AES unit the way it's done in CBC mode. There is +# nothing one can do and the result appears optimal. CCM result is +# identical to CBC, because CBC-MAC is essentially CBC encrypt without +# saving output. CCM CTR "stays invisible," because it's neatly +# interleaved wih CBC-MAC. This provides ~30% improvement over +# "straghtforward" CCM implementation with CTR and CBC-MAC performed +# disjointly. Parallelizable modes practically achieve the theoretical +# limit. +# +# Looking at how results vary with buffer size. +# +# Curves are practically saturated at 1-KB buffer size. In most cases +# "256-byte" performance is >95%, and "64-byte" is ~90% of "8-KB" one. +# CTR curve doesn't follow this pattern and is "slowest" changing one +# with "256-byte" result being 87% of "8-KB." This is because overhead +# in CTR mode is most computationally intensive. Small-block CCM +# decrypt is slower than encrypt, because first CTR and last CBC-MAC +# iterations can't be interleaved. +# +# Results for 192- and 256-bit keys. +# +# EVP-free results were observed to scale perfectly with number of +# rounds for larger block sizes, i.e. 192-bit result being 10/12 times +# lower and 256-bit one - 10/14. Well, in CBC encrypt case differences +# are a tad smaller, because the above mentioned penalty biases all +# results by same constant value. In similar way function call +# overhead affects small-block performance, as well as OFB and CFB +# results. Differences are not large, most common coefficients are +# 10/11.7 and 10/13.4 (as opposite to 10/12.0 and 10/14.0), but one +# observe even 10/11.2 and 10/12.4 (CTR, OFB, CFB)... + +# January 2011 +# +# While Westmere processor features 6 cycles latency for aes[enc|dec] +# instructions, which can be scheduled every second cycle, Sandy +# Bridge spends 8 cycles per instruction, but it can schedule them +# every cycle. This means that code targeting Westmere would perform +# suboptimally on Sandy Bridge. Therefore this update. +# +# In addition, non-parallelizable CBC encrypt (as well as CCM) is +# optimized. Relative improvement might appear modest, 8% on Westmere, +# but in absolute terms it's 3.77 cycles per byte encrypted with +# 128-bit key on Westmere, and 5.07 - on Sandy Bridge. These numbers +# should be compared to asymptotic limits of 3.75 for Westmere and +# 5.00 for Sandy Bridge. Actually, the fact that they get this close +# to asymptotic limits is quite amazing. Indeed, the limit is +# calculated as latency times number of rounds, 10 for 128-bit key, +# and divided by 16, the number of bytes in block, or in other words +# it accounts *solely* for aesenc instructions. But there are extra +# instructions, and numbers so close to the asymptotic limits mean +# that it's as if it takes as little as *one* additional cycle to +# execute all of them. How is it possible? It is possible thanks to +# out-of-order execution logic, which manages to overlap post- +# processing of previous block, things like saving the output, with +# actual encryption of current block, as well as pre-processing of +# current block, things like fetching input and xor-ing it with +# 0-round element of the key schedule, with actual encryption of +# previous block. Keep this in mind... +# +# For parallelizable modes, such as ECB, CBC decrypt, CTR, higher +# performance is achieved by interleaving instructions working on +# independent blocks. In which case asymptotic limit for such modes +# can be obtained by dividing above mentioned numbers by AES +# instructions' interleave factor. Westmere can execute at most 3 +# instructions at a time, meaning that optimal interleave factor is 3, +# and that's where the "magic" number of 1.25 come from. "Optimal +# interleave factor" means that increase of interleave factor does +# not improve performance. The formula has proven to reflect reality +# pretty well on Westmere... Sandy Bridge on the other hand can +# execute up to 8 AES instructions at a time, so how does varying +# interleave factor affect the performance? Here is table for ECB +# (numbers are cycles per byte processed with 128-bit key): +# +# instruction interleave factor 3x 6x 8x +# theoretical asymptotic limit 1.67 0.83 0.625 +# measured performance for 8KB block 1.05 0.86 0.84 +# +# "as if" interleave factor 4.7x 5.8x 6.0x +# +# Further data for other parallelizable modes: +# +# CBC decrypt 1.16 0.93 0.93 +# CTR 1.14 0.91 n/a +# +# Well, given 3x column it's probably inappropriate to call the limit +# asymptotic, if it can be surpassed, isn't it? What happens there? +# Rewind to CBC paragraph for the answer. Yes, out-of-order execution +# magic is responsible for this. Processor overlaps not only the +# additional instructions with AES ones, but even AES instuctions +# processing adjacent triplets of independent blocks. In the 6x case +# additional instructions still claim disproportionally small amount +# of additional cycles, but in 8x case number of instructions must be +# a tad too high for out-of-order logic to cope with, and AES unit +# remains underutilized... As you can see 8x interleave is hardly +# justifiable, so there no need to feel bad that 32-bit aesni-x86.pl +# utilizies 6x interleave because of limited register bank capacity. +# +# Higher interleave factors do have negative impact on Westmere +# performance. While for ECB mode it's negligible ~1.5%, other +# parallelizables perform ~5% worse, which is outweighed by ~25% +# improvement on Sandy Bridge. To balance regression on Westmere +# CTR mode was implemented with 6x aesenc interleave factor. + +# April 2011 +# +# Add aesni_xts_[en|de]crypt. Westmere spends 1.33 cycles processing +# one byte out of 8KB with 128-bit key, Sandy Bridge - 0.97. Just like +# in CTR mode AES instruction interleave factor was chosen to be 6x. + +$PREFIX="aesni"; # if $PREFIX is set to "AES", the script + # generates drop-in replacement for + # crypto/aes/asm/aes-x86_64.pl:-) + +$flavour = shift; +$output = shift; +if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } + +$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or +( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or +die "can't locate x86_64-xlate.pl"; + +open OUT,"| \"$^X\" $xlate $flavour $output"; +*STDOUT=*OUT; + +$movkey = $PREFIX eq "aesni" ? "movups" : "movups"; +@_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order + ("%rdi","%rsi","%rdx","%rcx"); # Unix order + +$code=".text\n"; + +$rounds="%eax"; # input to and changed by aesni_[en|de]cryptN !!! +# this is natural Unix argument order for public $PREFIX_[ecb|cbc]_encrypt ... +$inp="%rdi"; +$out="%rsi"; +$len="%rdx"; +$key="%rcx"; # input to and changed by aesni_[en|de]cryptN !!! +$ivp="%r8"; # cbc, ctr, ... + +$rnds_="%r10d"; # backup copy for $rounds +$key_="%r11"; # backup copy for $key + +# %xmm register layout +$rndkey0="%xmm0"; $rndkey1="%xmm1"; +$inout0="%xmm2"; $inout1="%xmm3"; +$inout2="%xmm4"; $inout3="%xmm5"; +$inout4="%xmm6"; $inout5="%xmm7"; +$inout6="%xmm8"; $inout7="%xmm9"; + +$in2="%xmm6"; $in1="%xmm7"; # used in CBC decrypt, CTR, ... +$in0="%xmm8"; $iv="%xmm9"; + +# Inline version of internal aesni_[en|de]crypt1. +# +# Why folded loop? Because aes[enc|dec] is slow enough to accommodate +# cycles which take care of loop variables... +{ my $sn; +sub aesni_generate1 { +my ($p,$key,$rounds,$inout,$ivec)=@_; $inout=$inout0 if (!defined($inout)); +++$sn; +$code.=<<___; + $movkey ($key),$rndkey0 + $movkey 16($key),$rndkey1 +___ +$code.=<<___ if (defined($ivec)); + xorps $rndkey0,$ivec + lea 32($key),$key + xorps $ivec,$inout +___ +$code.=<<___ if (!defined($ivec)); + lea 32($key),$key + xorps $rndkey0,$inout +___ +$code.=<<___; +.Loop_${p}1_$sn: + aes${p} $rndkey1,$inout + dec $rounds + $movkey ($key),$rndkey1 + lea 16($key),$key + jnz .Loop_${p}1_$sn # loop body is 16 bytes + aes${p}last $rndkey1,$inout +___ +}} +# void $PREFIX_[en|de]crypt (const void *inp,void *out,const AES_KEY *key); +# +{ my ($inp,$out,$key) = @_4args; + +$code.=<<___; +.globl ${PREFIX}_encrypt +.type ${PREFIX}_encrypt,\@abi-omnipotent +.align 16 +${PREFIX}_encrypt: + movups ($inp),$inout0 # load input + mov 240($key),$rounds # key->rounds +___ + &aesni_generate1("enc",$key,$rounds); +$code.=<<___; + movups $inout0,($out) # output + ret +.size ${PREFIX}_encrypt,.-${PREFIX}_encrypt + +.globl ${PREFIX}_decrypt +.type ${PREFIX}_decrypt,\@abi-omnipotent +.align 16 +${PREFIX}_decrypt: + movups ($inp),$inout0 # load input + mov 240($key),$rounds # key->rounds +___ + &aesni_generate1("dec",$key,$rounds); +$code.=<<___; + movups $inout0,($out) # output + ret +.size ${PREFIX}_decrypt, .-${PREFIX}_decrypt +___ +} + +# _aesni_[en|de]cryptN are private interfaces, N denotes interleave +# factor. Why 3x subroutine were originally used in loops? Even though +# aes[enc|dec] latency was originally 6, it could be scheduled only +# every *2nd* cycle. Thus 3x interleave was the one providing optimal +# utilization, i.e. when subroutine's throughput is virtually same as +# of non-interleaved subroutine [for number of input blocks up to 3]. +# This is why it makes no sense to implement 2x subroutine. +# aes[enc|dec] latency in next processor generation is 8, but the +# instructions can be scheduled every cycle. Optimal interleave for +# new processor is therefore 8x... +sub aesni_generate3 { +my $dir=shift; +# As already mentioned it takes in $key and $rounds, which are *not* +# preserved. $inout[0-2] is cipher/clear text... +$code.=<<___; +.type _aesni_${dir}rypt3,\@abi-omnipotent +.align 16 +_aesni_${dir}rypt3: + $movkey ($key),$rndkey0 + shr \$1,$rounds + $movkey 16($key),$rndkey1 + lea 32($key),$key + xorps $rndkey0,$inout0 + xorps $rndkey0,$inout1 + xorps $rndkey0,$inout2 + $movkey ($key),$rndkey0 + +.L${dir}_loop3: + aes${dir} $rndkey1,$inout0 + aes${dir} $rndkey1,$inout1 + dec $rounds + aes${dir} $rndkey1,$inout2 + $movkey 16($key),$rndkey1 + aes${dir} $rndkey0,$inout0 + aes${dir} $rndkey0,$inout1 + lea 32($key),$key + aes${dir} $rndkey0,$inout2 + $movkey ($key),$rndkey0 + jnz .L${dir}_loop3 + + aes${dir} $rndkey1,$inout0 + aes${dir} $rndkey1,$inout1 + aes${dir} $rndkey1,$inout2 + aes${dir}last $rndkey0,$inout0 + aes${dir}last $rndkey0,$inout1 + aes${dir}last $rndkey0,$inout2 + ret +.size _aesni_${dir}rypt3,.-_aesni_${dir}rypt3 +___ +} +# 4x interleave is implemented to improve small block performance, +# most notably [and naturally] 4 block by ~30%. One can argue that one +# should have implemented 5x as well, but improvement would be <20%, +# so it's not worth it... +sub aesni_generate4 { +my $dir=shift; +# As already mentioned it takes in $key and $rounds, which are *not* +# preserved. $inout[0-3] is cipher/clear text... +$code.=<<___; +.type _aesni_${dir}rypt4,\@abi-omnipotent +.align 16 +_aesni_${dir}rypt4: + $movkey ($key),$rndkey0 + shr \$1,$rounds + $movkey 16($key),$rndkey1 + lea 32($key),$key + xorps $rndkey0,$inout0 + xorps $rndkey0,$inout1 + xorps $rndkey0,$inout2 + xorps $rndkey0,$inout3 + $movkey ($key),$rndkey0 + +.L${dir}_loop4: + aes${dir} $rndkey1,$inout0 + aes${dir} $rndkey1,$inout1 + dec $rounds + aes${dir} $rndkey1,$inout2 + aes${dir} $rndkey1,$inout3 + $movkey 16($key),$rndkey1 + aes${dir} $rndkey0,$inout0 + aes${dir} $rndkey0,$inout1 + lea 32($key),$key + aes${dir} $rndkey0,$inout2 + aes${dir} $rndkey0,$inout3 + $movkey ($key),$rndkey0 + jnz .L${dir}_loop4 + + aes${dir} $rndkey1,$inout0 + aes${dir} $rndkey1,$inout1 + aes${dir} $rndkey1,$inout2 + aes${dir} $rndkey1,$inout3 + aes${dir}last $rndkey0,$inout0 + aes${dir}last $rndkey0,$inout1 + aes${dir}last $rndkey0,$inout2 + aes${dir}last $rndkey0,$inout3 + ret +.size _aesni_${dir}rypt4,.-_aesni_${dir}rypt4 +___ +} +sub aesni_generate6 { +my $dir=shift; +# As already mentioned it takes in $key and $rounds, which are *not* +# preserved. $inout[0-5] is cipher/clear text... +$code.=<<___; +.type _aesni_${dir}rypt6,\@abi-omnipotent +.align 16 +_aesni_${dir}rypt6: + $movkey ($key),$rndkey0 + shr \$1,$rounds + $movkey 16($key),$rndkey1 + lea 32($key),$key + xorps $rndkey0,$inout0 + pxor $rndkey0,$inout1 + aes${dir} $rndkey1,$inout0 + pxor $rndkey0,$inout2 + aes${dir} $rndkey1,$inout1 + pxor $rndkey0,$inout3 + aes${dir} $rndkey1,$inout2 + pxor $rndkey0,$inout4 + aes${dir} $rndkey1,$inout3 + pxor $rndkey0,$inout5 + dec $rounds + aes${dir} $rndkey1,$inout4 + $movkey ($key),$rndkey0 + aes${dir} $rndkey1,$inout5 + jmp .L${dir}_loop6_enter +.align 16 +.L${dir}_loop6: + aes${dir} $rndkey1,$inout0 + aes${dir} $rndkey1,$inout1 + dec $rounds + aes${dir} $rndkey1,$inout2 + aes${dir} $rndkey1,$inout3 + aes${dir} $rndkey1,$inout4 + aes${dir} $rndkey1,$inout5 +.L${dir}_loop6_enter: # happens to be 16-byte aligned + $movkey 16($key),$rndkey1 + aes${dir} $rndkey0,$inout0 + aes${dir} $rndkey0,$inout1 + lea 32($key),$key + aes${dir} $rndkey0,$inout2 + aes${dir} $rndkey0,$inout3 + aes${dir} $rndkey0,$inout4 + aes${dir} $rndkey0,$inout5 + $movkey ($key),$rndkey0 + jnz .L${dir}_loop6 + + aes${dir} $rndkey1,$inout0 + aes${dir} $rndkey1,$inout1 + aes${dir} $rndkey1,$inout2 + aes${dir} $rndkey1,$inout3 + aes${dir} $rndkey1,$inout4 + aes${dir} $rndkey1,$inout5 + aes${dir}last $rndkey0,$inout0 + aes${dir}last $rndkey0,$inout1 + aes${dir}last $rndkey0,$inout2 + aes${dir}last $rndkey0,$inout3 + aes${dir}last $rndkey0,$inout4 + aes${dir}last $rndkey0,$inout5 + ret +.size _aesni_${dir}rypt6,.-_aesni_${dir}rypt6 +___ +} +sub aesni_generate8 { +my $dir=shift; +# As already mentioned it takes in $key and $rounds, which are *not* +# preserved. $inout[0-7] is cipher/clear text... +$code.=<<___; +.type _aesni_${dir}rypt8,\@abi-omnipotent +.align 16 +_aesni_${dir}rypt8: + $movkey ($key),$rndkey0 + shr \$1,$rounds + $movkey 16($key),$rndkey1 + lea 32($key),$key + xorps $rndkey0,$inout0 + xorps $rndkey0,$inout1 + aes${dir} $rndkey1,$inout0 + pxor $rndkey0,$inout2 + aes${dir} $rndkey1,$inout1 + pxor $rndkey0,$inout3 + aes${dir} $rndkey1,$inout2 + pxor $rndkey0,$inout4 + aes${dir} $rndkey1,$inout3 + pxor $rndkey0,$inout5 + dec $rounds + aes${dir} $rndkey1,$inout4 + pxor $rndkey0,$inout6 + aes${dir} $rndkey1,$inout5 + pxor $rndkey0,$inout7 + $movkey ($key),$rndkey0 + aes${dir} $rndkey1,$inout6 + aes${dir} $rndkey1,$inout7 + $movkey 16($key),$rndkey1 + jmp .L${dir}_loop8_enter +.align 16 +.L${dir}_loop8: + aes${dir} $rndkey1,$inout0 + aes${dir} $rndkey1,$inout1 + dec $rounds + aes${dir} $rndkey1,$inout2 + aes${dir} $rndkey1,$inout3 + aes${dir} $rndkey1,$inout4 + aes${dir} $rndkey1,$inout5 + aes${dir} $rndkey1,$inout6 + aes${dir} $rndkey1,$inout7 + $movkey 16($key),$rndkey1 +.L${dir}_loop8_enter: # happens to be 16-byte aligned + aes${dir} $rndkey0,$inout0 + aes${dir} $rndkey0,$inout1 + lea 32($key),$key + aes${dir} $rndkey0,$inout2 + aes${dir} $rndkey0,$inout3 + aes${dir} $rndkey0,$inout4 + aes${dir} $rndkey0,$inout5 + aes${dir} $rndkey0,$inout6 + aes${dir} $rndkey0,$inout7 + $movkey ($key),$rndkey0 + jnz .L${dir}_loop8 + + aes${dir} $rndkey1,$inout0 + aes${dir} $rndkey1,$inout1 + aes${dir} $rndkey1,$inout2 + aes${dir} $rndkey1,$inout3 + aes${dir} $rndkey1,$inout4 + aes${dir} $rndkey1,$inout5 + aes${dir} $rndkey1,$inout6 + aes${dir} $rndkey1,$inout7 + aes${dir}last $rndkey0,$inout0 + aes${dir}last $rndkey0,$inout1 + aes${dir}last $rndkey0,$inout2 + aes${dir}last $rndkey0,$inout3 + aes${dir}last $rndkey0,$inout4 + aes${dir}last $rndkey0,$inout5 + aes${dir}last $rndkey0,$inout6 + aes${dir}last $rndkey0,$inout7 + ret +.size _aesni_${dir}rypt8,.-_aesni_${dir}rypt8 +___ +} +&aesni_generate3("enc") if ($PREFIX eq "aesni"); +&aesni_generate3("dec"); +&aesni_generate4("enc") if ($PREFIX eq "aesni"); +&aesni_generate4("dec"); +&aesni_generate6("enc") if ($PREFIX eq "aesni"); +&aesni_generate6("dec"); +&aesni_generate8("enc") if ($PREFIX eq "aesni"); +&aesni_generate8("dec"); + +if ($PREFIX eq "aesni") { +######################################################################## +# void aesni_ecb_encrypt (const void *in, void *out, +# size_t length, const AES_KEY *key, +# int enc); +$code.=<<___; +.globl aesni_ecb_encrypt +.type aesni_ecb_encrypt,\@function,5 +.align 16 +aesni_ecb_encrypt: + and \$-16,$len + jz .Lecb_ret + + mov 240($key),$rounds # key->rounds + $movkey ($key),$rndkey0 + mov $key,$key_ # backup $key + mov $rounds,$rnds_ # backup $rounds + test %r8d,%r8d # 5th argument + jz .Lecb_decrypt +#--------------------------- ECB ENCRYPT ------------------------------# + cmp \$0x80,$len + jb .Lecb_enc_tail + + movdqu ($inp),$inout0 + movdqu 0x10($inp),$inout1 + movdqu 0x20($inp),$inout2 + movdqu 0x30($inp),$inout3 + movdqu 0x40($inp),$inout4 + movdqu 0x50($inp),$inout5 + movdqu 0x60($inp),$inout6 + movdqu 0x70($inp),$inout7 + lea 0x80($inp),$inp + sub \$0x80,$len + jmp .Lecb_enc_loop8_enter +.align 16 +.Lecb_enc_loop8: + movups $inout0,($out) + mov $key_,$key # restore $key + movdqu ($inp),$inout0 + mov $rnds_,$rounds # restore $rounds + movups $inout1,0x10($out) + movdqu 0x10($inp),$inout1 + movups $inout2,0x20($out) + movdqu 0x20($inp),$inout2 + movups $inout3,0x30($out) + movdqu 0x30($inp),$inout3 + movups $inout4,0x40($out) + movdqu 0x40($inp),$inout4 + movups $inout5,0x50($out) + movdqu 0x50($inp),$inout5 + movups $inout6,0x60($out) + movdqu 0x60($inp),$inout6 + movups $inout7,0x70($out) + lea 0x80($out),$out + movdqu 0x70($inp),$inout7 + lea 0x80($inp),$inp +.Lecb_enc_loop8_enter: + + call _aesni_encrypt8 + + sub \$0x80,$len + jnc .Lecb_enc_loop8 + + movups $inout0,($out) + mov $key_,$key # restore $key + movups $inout1,0x10($out) + mov $rnds_,$rounds # restore $rounds + movups $inout2,0x20($out) + movups $inout3,0x30($out) + movups $inout4,0x40($out) + movups $inout5,0x50($out) + movups $inout6,0x60($out) + movups $inout7,0x70($out) + lea 0x80($out),$out + add \$0x80,$len + jz .Lecb_ret + +.Lecb_enc_tail: + movups ($inp),$inout0 + cmp \$0x20,$len + jb .Lecb_enc_one + movups 0x10($inp),$inout1 + je .Lecb_enc_two + movups 0x20($inp),$inout2 + cmp \$0x40,$len + jb .Lecb_enc_three + movups 0x30($inp),$inout3 + je .Lecb_enc_four + movups 0x40($inp),$inout4 + cmp \$0x60,$len + jb .Lecb_enc_five + movups 0x50($inp),$inout5 + je .Lecb_enc_six + movdqu 0x60($inp),$inout6 + call _aesni_encrypt8 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + movups $inout4,0x40($out) + movups $inout5,0x50($out) + movups $inout6,0x60($out) + jmp .Lecb_ret +.align 16 +.Lecb_enc_one: +___ + &aesni_generate1("enc",$key,$rounds); +$code.=<<___; + movups $inout0,($out) + jmp .Lecb_ret +.align 16 +.Lecb_enc_two: + xorps $inout2,$inout2 + call _aesni_encrypt3 + movups $inout0,($out) + movups $inout1,0x10($out) + jmp .Lecb_ret +.align 16 +.Lecb_enc_three: + call _aesni_encrypt3 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + jmp .Lecb_ret +.align 16 +.Lecb_enc_four: + call _aesni_encrypt4 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + jmp .Lecb_ret +.align 16 +.Lecb_enc_five: + xorps $inout5,$inout5 + call _aesni_encrypt6 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + movups $inout4,0x40($out) + jmp .Lecb_ret +.align 16 +.Lecb_enc_six: + call _aesni_encrypt6 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + movups $inout4,0x40($out) + movups $inout5,0x50($out) + jmp .Lecb_ret + #--------------------------- ECB DECRYPT ------------------------------# +.align 16 +.Lecb_decrypt: + cmp \$0x80,$len + jb .Lecb_dec_tail + + movdqu ($inp),$inout0 + movdqu 0x10($inp),$inout1 + movdqu 0x20($inp),$inout2 + movdqu 0x30($inp),$inout3 + movdqu 0x40($inp),$inout4 + movdqu 0x50($inp),$inout5 + movdqu 0x60($inp),$inout6 + movdqu 0x70($inp),$inout7 + lea 0x80($inp),$inp + sub \$0x80,$len + jmp .Lecb_dec_loop8_enter +.align 16 +.Lecb_dec_loop8: + movups $inout0,($out) + mov $key_,$key # restore $key + movdqu ($inp),$inout0 + mov $rnds_,$rounds # restore $rounds + movups $inout1,0x10($out) + movdqu 0x10($inp),$inout1 + movups $inout2,0x20($out) + movdqu 0x20($inp),$inout2 + movups $inout3,0x30($out) + movdqu 0x30($inp),$inout3 + movups $inout4,0x40($out) + movdqu 0x40($inp),$inout4 + movups $inout5,0x50($out) + movdqu 0x50($inp),$inout5 + movups $inout6,0x60($out) + movdqu 0x60($inp),$inout6 + movups $inout7,0x70($out) + lea 0x80($out),$out + movdqu 0x70($inp),$inout7 + lea 0x80($inp),$inp +.Lecb_dec_loop8_enter: + + call _aesni_decrypt8 + + $movkey ($key_),$rndkey0 + sub \$0x80,$len + jnc .Lecb_dec_loop8 + + movups $inout0,($out) + mov $key_,$key # restore $key + movups $inout1,0x10($out) + mov $rnds_,$rounds # restore $rounds + movups $inout2,0x20($out) + movups $inout3,0x30($out) + movups $inout4,0x40($out) + movups $inout5,0x50($out) + movups $inout6,0x60($out) + movups $inout7,0x70($out) + lea 0x80($out),$out + add \$0x80,$len + jz .Lecb_ret + +.Lecb_dec_tail: + movups ($inp),$inout0 + cmp \$0x20,$len + jb .Lecb_dec_one + movups 0x10($inp),$inout1 + je .Lecb_dec_two + movups 0x20($inp),$inout2 + cmp \$0x40,$len + jb .Lecb_dec_three + movups 0x30($inp),$inout3 + je .Lecb_dec_four + movups 0x40($inp),$inout4 + cmp \$0x60,$len + jb .Lecb_dec_five + movups 0x50($inp),$inout5 + je .Lecb_dec_six + movups 0x60($inp),$inout6 + $movkey ($key),$rndkey0 + call _aesni_decrypt8 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + movups $inout4,0x40($out) + movups $inout5,0x50($out) + movups $inout6,0x60($out) + jmp .Lecb_ret +.align 16 +.Lecb_dec_one: +___ + &aesni_generate1("dec",$key,$rounds); +$code.=<<___; + movups $inout0,($out) + jmp .Lecb_ret +.align 16 +.Lecb_dec_two: + xorps $inout2,$inout2 + call _aesni_decrypt3 + movups $inout0,($out) + movups $inout1,0x10($out) + jmp .Lecb_ret +.align 16 +.Lecb_dec_three: + call _aesni_decrypt3 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + jmp .Lecb_ret +.align 16 +.Lecb_dec_four: + call _aesni_decrypt4 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + jmp .Lecb_ret +.align 16 +.Lecb_dec_five: + xorps $inout5,$inout5 + call _aesni_decrypt6 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + movups $inout4,0x40($out) + jmp .Lecb_ret +.align 16 +.Lecb_dec_six: + call _aesni_decrypt6 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + movups $inout4,0x40($out) + movups $inout5,0x50($out) + +.Lecb_ret: + ret +.size aesni_ecb_encrypt,.-aesni_ecb_encrypt +___ + +{ +###################################################################### +# void aesni_ccm64_[en|de]crypt_blocks (const void *in, void *out, +# size_t blocks, const AES_KEY *key, +# const char *ivec,char *cmac); +# +# Handles only complete blocks, operates on 64-bit counter and +# does not update *ivec! Nor does it finalize CMAC value +# (see engine/eng_aesni.c for details) +# +{ +my $cmac="%r9"; # 6th argument + +my $increment="%xmm6"; +my $bswap_mask="%xmm7"; + +$code.=<<___; +.globl aesni_ccm64_encrypt_blocks +.type aesni_ccm64_encrypt_blocks,\@function,6 +.align 16 +aesni_ccm64_encrypt_blocks: +___ +$code.=<<___ if ($win64); + lea -0x58(%rsp),%rsp + movaps %xmm6,(%rsp) + movaps %xmm7,0x10(%rsp) + movaps %xmm8,0x20(%rsp) + movaps %xmm9,0x30(%rsp) +.Lccm64_enc_body: +___ +$code.=<<___; + mov 240($key),$rounds # key->rounds + movdqu ($ivp),$iv + movdqa .Lincrement64(%rip),$increment + movdqa .Lbswap_mask(%rip),$bswap_mask + + shr \$1,$rounds + lea 0($key),$key_ + movdqu ($cmac),$inout1 + movdqa $iv,$inout0 + mov $rounds,$rnds_ + pshufb $bswap_mask,$iv + jmp .Lccm64_enc_outer +.align 16 +.Lccm64_enc_outer: + $movkey ($key_),$rndkey0 + mov $rnds_,$rounds + movups ($inp),$in0 # load inp + + xorps $rndkey0,$inout0 # counter + $movkey 16($key_),$rndkey1 + xorps $in0,$rndkey0 + lea 32($key_),$key + xorps $rndkey0,$inout1 # cmac^=inp + $movkey ($key),$rndkey0 + +.Lccm64_enc2_loop: + aesenc $rndkey1,$inout0 + dec $rounds + aesenc $rndkey1,$inout1 + $movkey 16($key),$rndkey1 + aesenc $rndkey0,$inout0 + lea 32($key),$key + aesenc $rndkey0,$inout1 + $movkey 0($key),$rndkey0 + jnz .Lccm64_enc2_loop + aesenc $rndkey1,$inout0 + aesenc $rndkey1,$inout1 + paddq $increment,$iv + aesenclast $rndkey0,$inout0 + aesenclast $rndkey0,$inout1 + + dec $len + lea 16($inp),$inp + xorps $inout0,$in0 # inp ^= E(iv) + movdqa $iv,$inout0 + movups $in0,($out) # save output + lea 16($out),$out + pshufb $bswap_mask,$inout0 + jnz .Lccm64_enc_outer + + movups $inout1,($cmac) +___ +$code.=<<___ if ($win64); + movaps (%rsp),%xmm6 + movaps 0x10(%rsp),%xmm7 + movaps 0x20(%rsp),%xmm8 + movaps 0x30(%rsp),%xmm9 + lea 0x58(%rsp),%rsp +.Lccm64_enc_ret: +___ +$code.=<<___; + ret +.size aesni_ccm64_encrypt_blocks,.-aesni_ccm64_encrypt_blocks +___ +###################################################################### +$code.=<<___; +.globl aesni_ccm64_decrypt_blocks +.type aesni_ccm64_decrypt_blocks,\@function,6 +.align 16 +aesni_ccm64_decrypt_blocks: +___ +$code.=<<___ if ($win64); + lea -0x58(%rsp),%rsp + movaps %xmm6,(%rsp) + movaps %xmm7,0x10(%rsp) + movaps %xmm8,0x20(%rsp) + movaps %xmm9,0x30(%rsp) +.Lccm64_dec_body: +___ +$code.=<<___; + mov 240($key),$rounds # key->rounds + movups ($ivp),$iv + movdqu ($cmac),$inout1 + movdqa .Lincrement64(%rip),$increment + movdqa .Lbswap_mask(%rip),$bswap_mask + + movaps $iv,$inout0 + mov $rounds,$rnds_ + mov $key,$key_ + pshufb $bswap_mask,$iv +___ + &aesni_generate1("enc",$key,$rounds); +$code.=<<___; + movups ($inp),$in0 # load inp + paddq $increment,$iv + lea 16($inp),$inp + jmp .Lccm64_dec_outer +.align 16 +.Lccm64_dec_outer: + xorps $inout0,$in0 # inp ^= E(iv) + movdqa $iv,$inout0 + mov $rnds_,$rounds + movups $in0,($out) # save output + lea 16($out),$out + pshufb $bswap_mask,$inout0 + + sub \$1,$len + jz .Lccm64_dec_break + + $movkey ($key_),$rndkey0 + shr \$1,$rounds + $movkey 16($key_),$rndkey1 + xorps $rndkey0,$in0 + lea 32($key_),$key + xorps $rndkey0,$inout0 + xorps $in0,$inout1 # cmac^=out + $movkey ($key),$rndkey0 + +.Lccm64_dec2_loop: + aesenc $rndkey1,$inout0 + dec $rounds + aesenc $rndkey1,$inout1 + $movkey 16($key),$rndkey1 + aesenc $rndkey0,$inout0 + lea 32($key),$key + aesenc $rndkey0,$inout1 + $movkey 0($key),$rndkey0 + jnz .Lccm64_dec2_loop + movups ($inp),$in0 # load inp + paddq $increment,$iv + aesenc $rndkey1,$inout0 + aesenc $rndkey1,$inout1 + lea 16($inp),$inp + aesenclast $rndkey0,$inout0 + aesenclast $rndkey0,$inout1 + jmp .Lccm64_dec_outer + +.align 16 +.Lccm64_dec_break: + #xorps $in0,$inout1 # cmac^=out +___ + &aesni_generate1("enc",$key_,$rounds,$inout1,$in0); +$code.=<<___; + movups $inout1,($cmac) +___ +$code.=<<___ if ($win64); + movaps (%rsp),%xmm6 + movaps 0x10(%rsp),%xmm7 + movaps 0x20(%rsp),%xmm8 + movaps 0x30(%rsp),%xmm9 + lea 0x58(%rsp),%rsp +.Lccm64_dec_ret: +___ +$code.=<<___; + ret +.size aesni_ccm64_decrypt_blocks,.-aesni_ccm64_decrypt_blocks +___ +} +###################################################################### +# void aesni_ctr32_encrypt_blocks (const void *in, void *out, +# size_t blocks, const AES_KEY *key, +# const char *ivec); +# +# Handles only complete blocks, operates on 32-bit counter and +# does not update *ivec! (see engine/eng_aesni.c for details) +# +{ +my $reserved = $win64?0:-0x28; +my ($in0,$in1,$in2,$in3)=map("%xmm$_",(8..11)); +my ($iv0,$iv1,$ivec)=("%xmm12","%xmm13","%xmm14"); +my $bswap_mask="%xmm15"; + +$code.=<<___; +.globl aesni_ctr32_encrypt_blocks +.type aesni_ctr32_encrypt_blocks,\@function,5 +.align 16 +aesni_ctr32_encrypt_blocks: +___ +$code.=<<___ if ($win64); + lea -0xc8(%rsp),%rsp + movaps %xmm6,0x20(%rsp) + movaps %xmm7,0x30(%rsp) + movaps %xmm8,0x40(%rsp) + movaps %xmm9,0x50(%rsp) + movaps %xmm10,0x60(%rsp) + movaps %xmm11,0x70(%rsp) + movaps %xmm12,0x80(%rsp) + movaps %xmm13,0x90(%rsp) + movaps %xmm14,0xa0(%rsp) + movaps %xmm15,0xb0(%rsp) +.Lctr32_body: +___ +$code.=<<___; + cmp \$1,$len + je .Lctr32_one_shortcut + + movdqu ($ivp),$ivec + movdqa .Lbswap_mask(%rip),$bswap_mask + xor $rounds,$rounds + pextrd \$3,$ivec,$rnds_ # pull 32-bit counter + pinsrd \$3,$rounds,$ivec # wipe 32-bit counter + + mov 240($key),$rounds # key->rounds + bswap $rnds_ + pxor $iv0,$iv0 # vector of 3 32-bit counters + pxor $iv1,$iv1 # vector of 3 32-bit counters + pinsrd \$0,$rnds_,$iv0 + lea 3($rnds_),$key_ + pinsrd \$0,$key_,$iv1 + inc $rnds_ + pinsrd \$1,$rnds_,$iv0 + inc $key_ + pinsrd \$1,$key_,$iv1 + inc $rnds_ + pinsrd \$2,$rnds_,$iv0 + inc $key_ + pinsrd \$2,$key_,$iv1 + movdqa $iv0,$reserved(%rsp) + pshufb $bswap_mask,$iv0 + movdqa $iv1,`$reserved+0x10`(%rsp) + pshufb $bswap_mask,$iv1 + + pshufd \$`3<<6`,$iv0,$inout0 # place counter to upper dword + pshufd \$`2<<6`,$iv0,$inout1 + pshufd \$`1<<6`,$iv0,$inout2 + cmp \$6,$len + jb .Lctr32_tail + shr \$1,$rounds + mov $key,$key_ # backup $key + mov $rounds,$rnds_ # backup $rounds + sub \$6,$len + jmp .Lctr32_loop6 + +.align 16 +.Lctr32_loop6: + pshufd \$`3<<6`,$iv1,$inout3 + por $ivec,$inout0 # merge counter-less ivec + $movkey ($key_),$rndkey0 + pshufd \$`2<<6`,$iv1,$inout4 + por $ivec,$inout1 + $movkey 16($key_),$rndkey1 + pshufd \$`1<<6`,$iv1,$inout5 + por $ivec,$inout2 + por $ivec,$inout3 + xorps $rndkey0,$inout0 + por $ivec,$inout4 + por $ivec,$inout5 + + # inline _aesni_encrypt6 and interleave last rounds + # with own code... + + pxor $rndkey0,$inout1 + aesenc $rndkey1,$inout0 + lea 32($key_),$key + pxor $rndkey0,$inout2 + aesenc $rndkey1,$inout1 + movdqa .Lincrement32(%rip),$iv1 + pxor $rndkey0,$inout3 + aesenc $rndkey1,$inout2 + movdqa $reserved(%rsp),$iv0 + pxor $rndkey0,$inout4 + aesenc $rndkey1,$inout3 + pxor $rndkey0,$inout5 + $movkey ($key),$rndkey0 + dec $rounds + aesenc $rndkey1,$inout4 + aesenc $rndkey1,$inout5 + jmp .Lctr32_enc_loop6_enter +.align 16 +.Lctr32_enc_loop6: + aesenc $rndkey1,$inout0 + aesenc $rndkey1,$inout1 + dec $rounds + aesenc $rndkey1,$inout2 + aesenc $rndkey1,$inout3 + aesenc $rndkey1,$inout4 + aesenc $rndkey1,$inout5 +.Lctr32_enc_loop6_enter: + $movkey 16($key),$rndkey1 + aesenc $rndkey0,$inout0 + aesenc $rndkey0,$inout1 + lea 32($key),$key + aesenc $rndkey0,$inout2 + aesenc $rndkey0,$inout3 + aesenc $rndkey0,$inout4 + aesenc $rndkey0,$inout5 + $movkey ($key),$rndkey0 + jnz .Lctr32_enc_loop6 + + aesenc $rndkey1,$inout0 + paddd $iv1,$iv0 # increment counter vector + aesenc $rndkey1,$inout1 + paddd `$reserved+0x10`(%rsp),$iv1 + aesenc $rndkey1,$inout2 + movdqa $iv0,$reserved(%rsp) # save counter vector + aesenc $rndkey1,$inout3 + movdqa $iv1,`$reserved+0x10`(%rsp) + aesenc $rndkey1,$inout4 + pshufb $bswap_mask,$iv0 # byte swap + aesenc $rndkey1,$inout5 + pshufb $bswap_mask,$iv1 + + aesenclast $rndkey0,$inout0 + movups ($inp),$in0 # load input + aesenclast $rndkey0,$inout1 + movups 0x10($inp),$in1 + aesenclast $rndkey0,$inout2 + movups 0x20($inp),$in2 + aesenclast $rndkey0,$inout3 + movups 0x30($inp),$in3 + aesenclast $rndkey0,$inout4 + movups 0x40($inp),$rndkey1 + aesenclast $rndkey0,$inout5 + movups 0x50($inp),$rndkey0 + lea 0x60($inp),$inp + + xorps $inout0,$in0 # xor + pshufd \$`3<<6`,$iv0,$inout0 + xorps $inout1,$in1 + pshufd \$`2<<6`,$iv0,$inout1 + movups $in0,($out) # store output + xorps $inout2,$in2 + pshufd \$`1<<6`,$iv0,$inout2 + movups $in1,0x10($out) + xorps $inout3,$in3 + movups $in2,0x20($out) + xorps $inout4,$rndkey1 + movups $in3,0x30($out) + xorps $inout5,$rndkey0 + movups $rndkey1,0x40($out) + movups $rndkey0,0x50($out) + lea 0x60($out),$out + mov $rnds_,$rounds + sub \$6,$len + jnc .Lctr32_loop6 + + add \$6,$len + jz .Lctr32_done + mov $key_,$key # restore $key + lea 1($rounds,$rounds),$rounds # restore original value + +.Lctr32_tail: + por $ivec,$inout0 + movups ($inp),$in0 + cmp \$2,$len + jb .Lctr32_one + + por $ivec,$inout1 + movups 0x10($inp),$in1 + je .Lctr32_two + + pshufd \$`3<<6`,$iv1,$inout3 + por $ivec,$inout2 + movups 0x20($inp),$in2 + cmp \$4,$len + jb .Lctr32_three + + pshufd \$`2<<6`,$iv1,$inout4 + por $ivec,$inout3 + movups 0x30($inp),$in3 + je .Lctr32_four + + por $ivec,$inout4 + xorps $inout5,$inout5 + + call _aesni_encrypt6 + + movups 0x40($inp),$rndkey1 + xorps $inout0,$in0 + xorps $inout1,$in1 + movups $in0,($out) + xorps $inout2,$in2 + movups $in1,0x10($out) + xorps $inout3,$in3 + movups $in2,0x20($out) + xorps $inout4,$rndkey1 + movups $in3,0x30($out) + movups $rndkey1,0x40($out) + jmp .Lctr32_done + +.align 16 +.Lctr32_one_shortcut: + movups ($ivp),$inout0 + movups ($inp),$in0 + mov 240($key),$rounds # key->rounds +.Lctr32_one: +___ + &aesni_generate1("enc",$key,$rounds); +$code.=<<___; + xorps $inout0,$in0 + movups $in0,($out) + jmp .Lctr32_done + +.align 16 +.Lctr32_two: + xorps $inout2,$inout2 + call _aesni_encrypt3 + xorps $inout0,$in0 + xorps $inout1,$in1 + movups $in0,($out) + movups $in1,0x10($out) + jmp .Lctr32_done + +.align 16 +.Lctr32_three: + call _aesni_encrypt3 + xorps $inout0,$in0 + xorps $inout1,$in1 + movups $in0,($out) + xorps $inout2,$in2 + movups $in1,0x10($out) + movups $in2,0x20($out) + jmp .Lctr32_done + +.align 16 +.Lctr32_four: + call _aesni_encrypt4 + xorps $inout0,$in0 + xorps $inout1,$in1 + movups $in0,($out) + xorps $inout2,$in2 + movups $in1,0x10($out) + xorps $inout3,$in3 + movups $in2,0x20($out) + movups $in3,0x30($out) + +.Lctr32_done: +___ +$code.=<<___ if ($win64); + movaps 0x20(%rsp),%xmm6 + movaps 0x30(%rsp),%xmm7 + movaps 0x40(%rsp),%xmm8 + movaps 0x50(%rsp),%xmm9 + movaps 0x60(%rsp),%xmm10 + movaps 0x70(%rsp),%xmm11 + movaps 0x80(%rsp),%xmm12 + movaps 0x90(%rsp),%xmm13 + movaps 0xa0(%rsp),%xmm14 + movaps 0xb0(%rsp),%xmm15 + lea 0xc8(%rsp),%rsp +.Lctr32_ret: +___ +$code.=<<___; + ret +.size aesni_ctr32_encrypt_blocks,.-aesni_ctr32_encrypt_blocks +___ +} + +###################################################################### +# void aesni_xts_[en|de]crypt(const char *inp,char *out,size_t len, +# const AES_KEY *key1, const AES_KEY *key2 +# const unsigned char iv[16]); +# +{ +my @tweak=map("%xmm$_",(10..15)); +my ($twmask,$twres,$twtmp)=("%xmm8","%xmm9",@tweak[4]); +my ($key2,$ivp,$len_)=("%r8","%r9","%r9"); +my $frame_size = 0x68 + ($win64?160:0); + +$code.=<<___; +.globl aesni_xts_encrypt +.type aesni_xts_encrypt,\@function,6 +.align 16 +aesni_xts_encrypt: + lea -$frame_size(%rsp),%rsp +___ +$code.=<<___ if ($win64); + movaps %xmm6,0x60(%rsp) + movaps %xmm7,0x70(%rsp) + movaps %xmm8,0x80(%rsp) + movaps %xmm9,0x90(%rsp) + movaps %xmm10,0xa0(%rsp) + movaps %xmm11,0xb0(%rsp) + movaps %xmm12,0xc0(%rsp) + movaps %xmm13,0xd0(%rsp) + movaps %xmm14,0xe0(%rsp) + movaps %xmm15,0xf0(%rsp) +.Lxts_enc_body: +___ +$code.=<<___; + movups ($ivp),@tweak[5] # load clear-text tweak + mov 240(%r8),$rounds # key2->rounds + mov 240($key),$rnds_ # key1->rounds +___ + # generate the tweak + &aesni_generate1("enc",$key2,$rounds,@tweak[5]); +$code.=<<___; + mov $key,$key_ # backup $key + mov $rnds_,$rounds # backup $rounds + mov $len,$len_ # backup $len + and \$-16,$len + + movdqa .Lxts_magic(%rip),$twmask + pxor $twtmp,$twtmp + pcmpgtd @tweak[5],$twtmp # broadcast upper bits +___ + for ($i=0;$i<4;$i++) { + $code.=<<___; + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + movdqa @tweak[5],@tweak[$i] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + pand $twmask,$twres # isolate carry and residue + pcmpgtd @tweak[5],$twtmp # broadcat upper bits + pxor $twres,@tweak[5] +___ + } +$code.=<<___; + sub \$16*6,$len + jc .Lxts_enc_short + + shr \$1,$rounds + sub \$1,$rounds + mov $rounds,$rnds_ + jmp .Lxts_enc_grandloop + +.align 16 +.Lxts_enc_grandloop: + pshufd \$0x13,$twtmp,$twres + movdqa @tweak[5],@tweak[4] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + movdqu `16*0`($inp),$inout0 # load input + pand $twmask,$twres # isolate carry and residue + movdqu `16*1`($inp),$inout1 + pxor $twres,@tweak[5] + + movdqu `16*2`($inp),$inout2 + pxor @tweak[0],$inout0 # input^=tweak + movdqu `16*3`($inp),$inout3 + pxor @tweak[1],$inout1 + movdqu `16*4`($inp),$inout4 + pxor @tweak[2],$inout2 + movdqu `16*5`($inp),$inout5 + lea `16*6`($inp),$inp + pxor @tweak[3],$inout3 + $movkey ($key_),$rndkey0 + pxor @tweak[4],$inout4 + pxor @tweak[5],$inout5 + + # inline _aesni_encrypt6 and interleave first and last rounds + # with own code... + $movkey 16($key_),$rndkey1 + pxor $rndkey0,$inout0 + pxor $rndkey0,$inout1 + movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks + aesenc $rndkey1,$inout0 + lea 32($key_),$key + pxor $rndkey0,$inout2 + movdqa @tweak[1],`16*1`(%rsp) + aesenc $rndkey1,$inout1 + pxor $rndkey0,$inout3 + movdqa @tweak[2],`16*2`(%rsp) + aesenc $rndkey1,$inout2 + pxor $rndkey0,$inout4 + movdqa @tweak[3],`16*3`(%rsp) + aesenc $rndkey1,$inout3 + pxor $rndkey0,$inout5 + $movkey ($key),$rndkey0 + dec $rounds + movdqa @tweak[4],`16*4`(%rsp) + aesenc $rndkey1,$inout4 + movdqa @tweak[5],`16*5`(%rsp) + aesenc $rndkey1,$inout5 + pxor $twtmp,$twtmp + pcmpgtd @tweak[5],$twtmp + jmp .Lxts_enc_loop6_enter + +.align 16 +.Lxts_enc_loop6: + aesenc $rndkey1,$inout0 + aesenc $rndkey1,$inout1 + dec $rounds + aesenc $rndkey1,$inout2 + aesenc $rndkey1,$inout3 + aesenc $rndkey1,$inout4 + aesenc $rndkey1,$inout5 +.Lxts_enc_loop6_enter: + $movkey 16($key),$rndkey1 + aesenc $rndkey0,$inout0 + aesenc $rndkey0,$inout1 + lea 32($key),$key + aesenc $rndkey0,$inout2 + aesenc $rndkey0,$inout3 + aesenc $rndkey0,$inout4 + aesenc $rndkey0,$inout5 + $movkey ($key),$rndkey0 + jnz .Lxts_enc_loop6 + + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + aesenc $rndkey1,$inout0 + pand $twmask,$twres # isolate carry and residue + aesenc $rndkey1,$inout1 + pcmpgtd @tweak[5],$twtmp # broadcast upper bits + aesenc $rndkey1,$inout2 + pxor $twres,@tweak[5] + aesenc $rndkey1,$inout3 + aesenc $rndkey1,$inout4 + aesenc $rndkey1,$inout5 + $movkey 16($key),$rndkey1 + + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + movdqa @tweak[5],@tweak[0] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + aesenc $rndkey0,$inout0 + pand $twmask,$twres # isolate carry and residue + aesenc $rndkey0,$inout1 + pcmpgtd @tweak[5],$twtmp # broadcat upper bits + aesenc $rndkey0,$inout2 + pxor $twres,@tweak[5] + aesenc $rndkey0,$inout3 + aesenc $rndkey0,$inout4 + aesenc $rndkey0,$inout5 + $movkey 32($key),$rndkey0 + + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + movdqa @tweak[5],@tweak[1] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + aesenc $rndkey1,$inout0 + pand $twmask,$twres # isolate carry and residue + aesenc $rndkey1,$inout1 + pcmpgtd @tweak[5],$twtmp # broadcat upper bits + aesenc $rndkey1,$inout2 + pxor $twres,@tweak[5] + aesenc $rndkey1,$inout3 + aesenc $rndkey1,$inout4 + aesenc $rndkey1,$inout5 + + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + movdqa @tweak[5],@tweak[2] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + aesenclast $rndkey0,$inout0 + pand $twmask,$twres # isolate carry and residue + aesenclast $rndkey0,$inout1 + pcmpgtd @tweak[5],$twtmp # broadcat upper bits + aesenclast $rndkey0,$inout2 + pxor $twres,@tweak[5] + aesenclast $rndkey0,$inout3 + aesenclast $rndkey0,$inout4 + aesenclast $rndkey0,$inout5 + + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + movdqa @tweak[5],@tweak[3] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + xorps `16*0`(%rsp),$inout0 # output^=tweak + pand $twmask,$twres # isolate carry and residue + xorps `16*1`(%rsp),$inout1 + pcmpgtd @tweak[5],$twtmp # broadcat upper bits + pxor $twres,@tweak[5] + + xorps `16*2`(%rsp),$inout2 + movups $inout0,`16*0`($out) # write output + xorps `16*3`(%rsp),$inout3 + movups $inout1,`16*1`($out) + xorps `16*4`(%rsp),$inout4 + movups $inout2,`16*2`($out) + xorps `16*5`(%rsp),$inout5 + movups $inout3,`16*3`($out) + mov $rnds_,$rounds # restore $rounds + movups $inout4,`16*4`($out) + movups $inout5,`16*5`($out) + lea `16*6`($out),$out + sub \$16*6,$len + jnc .Lxts_enc_grandloop + + lea 3($rounds,$rounds),$rounds # restore original value + mov $key_,$key # restore $key + mov $rounds,$rnds_ # backup $rounds + +.Lxts_enc_short: + add \$16*6,$len + jz .Lxts_enc_done + + cmp \$0x20,$len + jb .Lxts_enc_one + je .Lxts_enc_two + + cmp \$0x40,$len + jb .Lxts_enc_three + je .Lxts_enc_four + + pshufd \$0x13,$twtmp,$twres + movdqa @tweak[5],@tweak[4] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + movdqu ($inp),$inout0 + pand $twmask,$twres # isolate carry and residue + movdqu 16*1($inp),$inout1 + pxor $twres,@tweak[5] + + movdqu 16*2($inp),$inout2 + pxor @tweak[0],$inout0 + movdqu 16*3($inp),$inout3 + pxor @tweak[1],$inout1 + movdqu 16*4($inp),$inout4 + lea 16*5($inp),$inp + pxor @tweak[2],$inout2 + pxor @tweak[3],$inout3 + pxor @tweak[4],$inout4 + + call _aesni_encrypt6 + + xorps @tweak[0],$inout0 + movdqa @tweak[5],@tweak[0] + xorps @tweak[1],$inout1 + xorps @tweak[2],$inout2 + movdqu $inout0,($out) + xorps @tweak[3],$inout3 + movdqu $inout1,16*1($out) + xorps @tweak[4],$inout4 + movdqu $inout2,16*2($out) + movdqu $inout3,16*3($out) + movdqu $inout4,16*4($out) + lea 16*5($out),$out + jmp .Lxts_enc_done + +.align 16 +.Lxts_enc_one: + movups ($inp),$inout0 + lea 16*1($inp),$inp + xorps @tweak[0],$inout0 +___ + &aesni_generate1("enc",$key,$rounds); +$code.=<<___; + xorps @tweak[0],$inout0 + movdqa @tweak[1],@tweak[0] + movups $inout0,($out) + lea 16*1($out),$out + jmp .Lxts_enc_done + +.align 16 +.Lxts_enc_two: + movups ($inp),$inout0 + movups 16($inp),$inout1 + lea 32($inp),$inp + xorps @tweak[0],$inout0 + xorps @tweak[1],$inout1 + + call _aesni_encrypt3 + + xorps @tweak[0],$inout0 + movdqa @tweak[2],@tweak[0] + xorps @tweak[1],$inout1 + movups $inout0,($out) + movups $inout1,16*1($out) + lea 16*2($out),$out + jmp .Lxts_enc_done + +.align 16 +.Lxts_enc_three: + movups ($inp),$inout0 + movups 16*1($inp),$inout1 + movups 16*2($inp),$inout2 + lea 16*3($inp),$inp + xorps @tweak[0],$inout0 + xorps @tweak[1],$inout1 + xorps @tweak[2],$inout2 + + call _aesni_encrypt3 + + xorps @tweak[0],$inout0 + movdqa @tweak[3],@tweak[0] + xorps @tweak[1],$inout1 + xorps @tweak[2],$inout2 + movups $inout0,($out) + movups $inout1,16*1($out) + movups $inout2,16*2($out) + lea 16*3($out),$out + jmp .Lxts_enc_done + +.align 16 +.Lxts_enc_four: + movups ($inp),$inout0 + movups 16*1($inp),$inout1 + movups 16*2($inp),$inout2 + xorps @tweak[0],$inout0 + movups 16*3($inp),$inout3 + lea 16*4($inp),$inp + xorps @tweak[1],$inout1 + xorps @tweak[2],$inout2 + xorps @tweak[3],$inout3 + + call _aesni_encrypt4 + + xorps @tweak[0],$inout0 + movdqa @tweak[5],@tweak[0] + xorps @tweak[1],$inout1 + xorps @tweak[2],$inout2 + movups $inout0,($out) + xorps @tweak[3],$inout3 + movups $inout1,16*1($out) + movups $inout2,16*2($out) + movups $inout3,16*3($out) + lea 16*4($out),$out + jmp .Lxts_enc_done + +.align 16 +.Lxts_enc_done: + and \$15,$len_ + jz .Lxts_enc_ret + mov $len_,$len + +.Lxts_enc_steal: + movzb ($inp),%eax # borrow $rounds ... + movzb -16($out),%ecx # ... and $key + lea 1($inp),$inp + mov %al,-16($out) + mov %cl,0($out) + lea 1($out),$out + sub \$1,$len + jnz .Lxts_enc_steal + + sub $len_,$out # rewind $out + mov $key_,$key # restore $key + mov $rnds_,$rounds # restore $rounds + + movups -16($out),$inout0 + xorps @tweak[0],$inout0 +___ + &aesni_generate1("enc",$key,$rounds); +$code.=<<___; + xorps @tweak[0],$inout0 + movups $inout0,-16($out) + +.Lxts_enc_ret: +___ +$code.=<<___ if ($win64); + movaps 0x60(%rsp),%xmm6 + movaps 0x70(%rsp),%xmm7 + movaps 0x80(%rsp),%xmm8 + movaps 0x90(%rsp),%xmm9 + movaps 0xa0(%rsp),%xmm10 + movaps 0xb0(%rsp),%xmm11 + movaps 0xc0(%rsp),%xmm12 + movaps 0xd0(%rsp),%xmm13 + movaps 0xe0(%rsp),%xmm14 + movaps 0xf0(%rsp),%xmm15 +___ +$code.=<<___; + lea $frame_size(%rsp),%rsp +.Lxts_enc_epilogue: + ret +.size aesni_xts_encrypt,.-aesni_xts_encrypt +___ + +$code.=<<___; +.globl aesni_xts_decrypt +.type aesni_xts_decrypt,\@function,6 +.align 16 +aesni_xts_decrypt: + lea -$frame_size(%rsp),%rsp +___ +$code.=<<___ if ($win64); + movaps %xmm6,0x60(%rsp) + movaps %xmm7,0x70(%rsp) + movaps %xmm8,0x80(%rsp) + movaps %xmm9,0x90(%rsp) + movaps %xmm10,0xa0(%rsp) + movaps %xmm11,0xb0(%rsp) + movaps %xmm12,0xc0(%rsp) + movaps %xmm13,0xd0(%rsp) + movaps %xmm14,0xe0(%rsp) + movaps %xmm15,0xf0(%rsp) +.Lxts_dec_body: +___ +$code.=<<___; + movups ($ivp),@tweak[5] # load clear-text tweak + mov 240($key2),$rounds # key2->rounds + mov 240($key),$rnds_ # key1->rounds +___ + # generate the tweak + &aesni_generate1("enc",$key2,$rounds,@tweak[5]); +$code.=<<___; + xor %eax,%eax # if ($len%16) len-=16; + test \$15,$len + setnz %al + shl \$4,%rax + sub %rax,$len + + mov $key,$key_ # backup $key + mov $rnds_,$rounds # backup $rounds + mov $len,$len_ # backup $len + and \$-16,$len + + movdqa .Lxts_magic(%rip),$twmask + pxor $twtmp,$twtmp + pcmpgtd @tweak[5],$twtmp # broadcast upper bits +___ + for ($i=0;$i<4;$i++) { + $code.=<<___; + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + movdqa @tweak[5],@tweak[$i] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + pand $twmask,$twres # isolate carry and residue + pcmpgtd @tweak[5],$twtmp # broadcat upper bits + pxor $twres,@tweak[5] +___ + } +$code.=<<___; + sub \$16*6,$len + jc .Lxts_dec_short + + shr \$1,$rounds + sub \$1,$rounds + mov $rounds,$rnds_ + jmp .Lxts_dec_grandloop + +.align 16 +.Lxts_dec_grandloop: + pshufd \$0x13,$twtmp,$twres + movdqa @tweak[5],@tweak[4] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + movdqu `16*0`($inp),$inout0 # load input + pand $twmask,$twres # isolate carry and residue + movdqu `16*1`($inp),$inout1 + pxor $twres,@tweak[5] + + movdqu `16*2`($inp),$inout2 + pxor @tweak[0],$inout0 # input^=tweak + movdqu `16*3`($inp),$inout3 + pxor @tweak[1],$inout1 + movdqu `16*4`($inp),$inout4 + pxor @tweak[2],$inout2 + movdqu `16*5`($inp),$inout5 + lea `16*6`($inp),$inp + pxor @tweak[3],$inout3 + $movkey ($key_),$rndkey0 + pxor @tweak[4],$inout4 + pxor @tweak[5],$inout5 + + # inline _aesni_decrypt6 and interleave first and last rounds + # with own code... + $movkey 16($key_),$rndkey1 + pxor $rndkey0,$inout0 + pxor $rndkey0,$inout1 + movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks + aesdec $rndkey1,$inout0 + lea 32($key_),$key + pxor $rndkey0,$inout2 + movdqa @tweak[1],`16*1`(%rsp) + aesdec $rndkey1,$inout1 + pxor $rndkey0,$inout3 + movdqa @tweak[2],`16*2`(%rsp) + aesdec $rndkey1,$inout2 + pxor $rndkey0,$inout4 + movdqa @tweak[3],`16*3`(%rsp) + aesdec $rndkey1,$inout3 + pxor $rndkey0,$inout5 + $movkey ($key),$rndkey0 + dec $rounds + movdqa @tweak[4],`16*4`(%rsp) + aesdec $rndkey1,$inout4 + movdqa @tweak[5],`16*5`(%rsp) + aesdec $rndkey1,$inout5 + pxor $twtmp,$twtmp + pcmpgtd @tweak[5],$twtmp + jmp .Lxts_dec_loop6_enter + +.align 16 +.Lxts_dec_loop6: + aesdec $rndkey1,$inout0 + aesdec $rndkey1,$inout1 + dec $rounds + aesdec $rndkey1,$inout2 + aesdec $rndkey1,$inout3 + aesdec $rndkey1,$inout4 + aesdec $rndkey1,$inout5 +.Lxts_dec_loop6_enter: + $movkey 16($key),$rndkey1 + aesdec $rndkey0,$inout0 + aesdec $rndkey0,$inout1 + lea 32($key),$key + aesdec $rndkey0,$inout2 + aesdec $rndkey0,$inout3 + aesdec $rndkey0,$inout4 + aesdec $rndkey0,$inout5 + $movkey ($key),$rndkey0 + jnz .Lxts_dec_loop6 + + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + aesdec $rndkey1,$inout0 + pand $twmask,$twres # isolate carry and residue + aesdec $rndkey1,$inout1 + pcmpgtd @tweak[5],$twtmp # broadcast upper bits + aesdec $rndkey1,$inout2 + pxor $twres,@tweak[5] + aesdec $rndkey1,$inout3 + aesdec $rndkey1,$inout4 + aesdec $rndkey1,$inout5 + $movkey 16($key),$rndkey1 + + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + movdqa @tweak[5],@tweak[0] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + aesdec $rndkey0,$inout0 + pand $twmask,$twres # isolate carry and residue + aesdec $rndkey0,$inout1 + pcmpgtd @tweak[5],$twtmp # broadcat upper bits + aesdec $rndkey0,$inout2 + pxor $twres,@tweak[5] + aesdec $rndkey0,$inout3 + aesdec $rndkey0,$inout4 + aesdec $rndkey0,$inout5 + $movkey 32($key),$rndkey0 + + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + movdqa @tweak[5],@tweak[1] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + aesdec $rndkey1,$inout0 + pand $twmask,$twres # isolate carry and residue + aesdec $rndkey1,$inout1 + pcmpgtd @tweak[5],$twtmp # broadcat upper bits + aesdec $rndkey1,$inout2 + pxor $twres,@tweak[5] + aesdec $rndkey1,$inout3 + aesdec $rndkey1,$inout4 + aesdec $rndkey1,$inout5 + + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + movdqa @tweak[5],@tweak[2] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + aesdeclast $rndkey0,$inout0 + pand $twmask,$twres # isolate carry and residue + aesdeclast $rndkey0,$inout1 + pcmpgtd @tweak[5],$twtmp # broadcat upper bits + aesdeclast $rndkey0,$inout2 + pxor $twres,@tweak[5] + aesdeclast $rndkey0,$inout3 + aesdeclast $rndkey0,$inout4 + aesdeclast $rndkey0,$inout5 + + pshufd \$0x13,$twtmp,$twres + pxor $twtmp,$twtmp + movdqa @tweak[5],@tweak[3] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + xorps `16*0`(%rsp),$inout0 # output^=tweak + pand $twmask,$twres # isolate carry and residue + xorps `16*1`(%rsp),$inout1 + pcmpgtd @tweak[5],$twtmp # broadcat upper bits + pxor $twres,@tweak[5] + + xorps `16*2`(%rsp),$inout2 + movups $inout0,`16*0`($out) # write output + xorps `16*3`(%rsp),$inout3 + movups $inout1,`16*1`($out) + xorps `16*4`(%rsp),$inout4 + movups $inout2,`16*2`($out) + xorps `16*5`(%rsp),$inout5 + movups $inout3,`16*3`($out) + mov $rnds_,$rounds # restore $rounds + movups $inout4,`16*4`($out) + movups $inout5,`16*5`($out) + lea `16*6`($out),$out + sub \$16*6,$len + jnc .Lxts_dec_grandloop + + lea 3($rounds,$rounds),$rounds # restore original value + mov $key_,$key # restore $key + mov $rounds,$rnds_ # backup $rounds + +.Lxts_dec_short: + add \$16*6,$len + jz .Lxts_dec_done + + cmp \$0x20,$len + jb .Lxts_dec_one + je .Lxts_dec_two + + cmp \$0x40,$len + jb .Lxts_dec_three + je .Lxts_dec_four + + pshufd \$0x13,$twtmp,$twres + movdqa @tweak[5],@tweak[4] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + movdqu ($inp),$inout0 + pand $twmask,$twres # isolate carry and residue + movdqu 16*1($inp),$inout1 + pxor $twres,@tweak[5] + + movdqu 16*2($inp),$inout2 + pxor @tweak[0],$inout0 + movdqu 16*3($inp),$inout3 + pxor @tweak[1],$inout1 + movdqu 16*4($inp),$inout4 + lea 16*5($inp),$inp + pxor @tweak[2],$inout2 + pxor @tweak[3],$inout3 + pxor @tweak[4],$inout4 + + call _aesni_decrypt6 + + xorps @tweak[0],$inout0 + xorps @tweak[1],$inout1 + xorps @tweak[2],$inout2 + movdqu $inout0,($out) + xorps @tweak[3],$inout3 + movdqu $inout1,16*1($out) + xorps @tweak[4],$inout4 + movdqu $inout2,16*2($out) + pxor $twtmp,$twtmp + movdqu $inout3,16*3($out) + pcmpgtd @tweak[5],$twtmp + movdqu $inout4,16*4($out) + lea 16*5($out),$out + pshufd \$0x13,$twtmp,@tweak[1] # $twres + and \$15,$len_ + jz .Lxts_dec_ret + + movdqa @tweak[5],@tweak[0] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + pand $twmask,@tweak[1] # isolate carry and residue + pxor @tweak[5],@tweak[1] + jmp .Lxts_dec_done2 + +.align 16 +.Lxts_dec_one: + movups ($inp),$inout0 + lea 16*1($inp),$inp + xorps @tweak[0],$inout0 +___ + &aesni_generate1("dec",$key,$rounds); +$code.=<<___; + xorps @tweak[0],$inout0 + movdqa @tweak[1],@tweak[0] + movups $inout0,($out) + movdqa @tweak[2],@tweak[1] + lea 16*1($out),$out + jmp .Lxts_dec_done + +.align 16 +.Lxts_dec_two: + movups ($inp),$inout0 + movups 16($inp),$inout1 + lea 32($inp),$inp + xorps @tweak[0],$inout0 + xorps @tweak[1],$inout1 + + call _aesni_decrypt3 + + xorps @tweak[0],$inout0 + movdqa @tweak[2],@tweak[0] + xorps @tweak[1],$inout1 + movdqa @tweak[3],@tweak[1] + movups $inout0,($out) + movups $inout1,16*1($out) + lea 16*2($out),$out + jmp .Lxts_dec_done + +.align 16 +.Lxts_dec_three: + movups ($inp),$inout0 + movups 16*1($inp),$inout1 + movups 16*2($inp),$inout2 + lea 16*3($inp),$inp + xorps @tweak[0],$inout0 + xorps @tweak[1],$inout1 + xorps @tweak[2],$inout2 + + call _aesni_decrypt3 + + xorps @tweak[0],$inout0 + movdqa @tweak[3],@tweak[0] + xorps @tweak[1],$inout1 + movdqa @tweak[5],@tweak[1] + xorps @tweak[2],$inout2 + movups $inout0,($out) + movups $inout1,16*1($out) + movups $inout2,16*2($out) + lea 16*3($out),$out + jmp .Lxts_dec_done + +.align 16 +.Lxts_dec_four: + pshufd \$0x13,$twtmp,$twres + movdqa @tweak[5],@tweak[4] + paddq @tweak[5],@tweak[5] # psllq 1,$tweak + movups ($inp),$inout0 + pand $twmask,$twres # isolate carry and residue + movups 16*1($inp),$inout1 + pxor $twres,@tweak[5] + + movups 16*2($inp),$inout2 + xorps @tweak[0],$inout0 + movups 16*3($inp),$inout3 + lea 16*4($inp),$inp + xorps @tweak[1],$inout1 + xorps @tweak[2],$inout2 + xorps @tweak[3],$inout3 + + call _aesni_decrypt4 + + xorps @tweak[0],$inout0 + movdqa @tweak[4],@tweak[0] + xorps @tweak[1],$inout1 + movdqa @tweak[5],@tweak[1] + xorps @tweak[2],$inout2 + movups $inout0,($out) + xorps @tweak[3],$inout3 + movups $inout1,16*1($out) + movups $inout2,16*2($out) + movups $inout3,16*3($out) + lea 16*4($out),$out + jmp .Lxts_dec_done + +.align 16 +.Lxts_dec_done: + and \$15,$len_ + jz .Lxts_dec_ret +.Lxts_dec_done2: + mov $len_,$len + mov $key_,$key # restore $key + mov $rnds_,$rounds # restore $rounds + + movups ($inp),$inout0 + xorps @tweak[1],$inout0 +___ + &aesni_generate1("dec",$key,$rounds); +$code.=<<___; + xorps @tweak[1],$inout0 + movups $inout0,($out) + +.Lxts_dec_steal: + movzb 16($inp),%eax # borrow $rounds ... + movzb ($out),%ecx # ... and $key + lea 1($inp),$inp + mov %al,($out) + mov %cl,16($out) + lea 1($out),$out + sub \$1,$len + jnz .Lxts_dec_steal + + sub $len_,$out # rewind $out + mov $key_,$key # restore $key + mov $rnds_,$rounds # restore $rounds + + movups ($out),$inout0 + xorps @tweak[0],$inout0 +___ + &aesni_generate1("dec",$key,$rounds); +$code.=<<___; + xorps @tweak[0],$inout0 + movups $inout0,($out) + +.Lxts_dec_ret: +___ +$code.=<<___ if ($win64); + movaps 0x60(%rsp),%xmm6 + movaps 0x70(%rsp),%xmm7 + movaps 0x80(%rsp),%xmm8 + movaps 0x90(%rsp),%xmm9 + movaps 0xa0(%rsp),%xmm10 + movaps 0xb0(%rsp),%xmm11 + movaps 0xc0(%rsp),%xmm12 + movaps 0xd0(%rsp),%xmm13 + movaps 0xe0(%rsp),%xmm14 + movaps 0xf0(%rsp),%xmm15 +___ +$code.=<<___; + lea $frame_size(%rsp),%rsp +.Lxts_dec_epilogue: + ret +.size aesni_xts_decrypt,.-aesni_xts_decrypt +___ +} }} + +######################################################################## +# void $PREFIX_cbc_encrypt (const void *inp, void *out, +# size_t length, const AES_KEY *key, +# unsigned char *ivp,const int enc); +{ +my $reserved = $win64?0x40:-0x18; # used in decrypt +$code.=<<___; +.globl ${PREFIX}_cbc_encrypt +.type ${PREFIX}_cbc_encrypt,\@function,6 +.align 16 +${PREFIX}_cbc_encrypt: + test $len,$len # check length + jz .Lcbc_ret + + mov 240($key),$rnds_ # key->rounds + mov $key,$key_ # backup $key + test %r9d,%r9d # 6th argument + jz .Lcbc_decrypt +#--------------------------- CBC ENCRYPT ------------------------------# + movups ($ivp),$inout0 # load iv as initial state + mov $rnds_,$rounds + cmp \$16,$len + jb .Lcbc_enc_tail + sub \$16,$len + jmp .Lcbc_enc_loop +.align 16 +.Lcbc_enc_loop: + movups ($inp),$inout1 # load input + lea 16($inp),$inp + #xorps $inout1,$inout0 +___ + &aesni_generate1("enc",$key,$rounds,$inout0,$inout1); +$code.=<<___; + mov $rnds_,$rounds # restore $rounds + mov $key_,$key # restore $key + movups $inout0,0($out) # store output + lea 16($out),$out + sub \$16,$len + jnc .Lcbc_enc_loop + add \$16,$len + jnz .Lcbc_enc_tail + movups $inout0,($ivp) + jmp .Lcbc_ret + +.Lcbc_enc_tail: + mov $len,%rcx # zaps $key + xchg $inp,$out # $inp is %rsi and $out is %rdi now + .long 0x9066A4F3 # rep movsb + mov \$16,%ecx # zero tail + sub $len,%rcx + xor %eax,%eax + .long 0x9066AAF3 # rep stosb + lea -16(%rdi),%rdi # rewind $out by 1 block + mov $rnds_,$rounds # restore $rounds + mov %rdi,%rsi # $inp and $out are the same + mov $key_,$key # restore $key + xor $len,$len # len=16 + jmp .Lcbc_enc_loop # one more spin + #--------------------------- CBC DECRYPT ------------------------------# +.align 16 +.Lcbc_decrypt: +___ +$code.=<<___ if ($win64); + lea -0x58(%rsp),%rsp + movaps %xmm6,(%rsp) + movaps %xmm7,0x10(%rsp) + movaps %xmm8,0x20(%rsp) + movaps %xmm9,0x30(%rsp) +.Lcbc_decrypt_body: +___ +$code.=<<___; + movups ($ivp),$iv + mov $rnds_,$rounds + cmp \$0x70,$len + jbe .Lcbc_dec_tail + shr \$1,$rnds_ + sub \$0x70,$len + mov $rnds_,$rounds + movaps $iv,$reserved(%rsp) + jmp .Lcbc_dec_loop8_enter +.align 16 +.Lcbc_dec_loop8: + movaps $rndkey0,$reserved(%rsp) # save IV + movups $inout7,($out) + lea 0x10($out),$out +.Lcbc_dec_loop8_enter: + $movkey ($key),$rndkey0 + movups ($inp),$inout0 # load input + movups 0x10($inp),$inout1 + $movkey 16($key),$rndkey1 + + lea 32($key),$key + movdqu 0x20($inp),$inout2 + xorps $rndkey0,$inout0 + movdqu 0x30($inp),$inout3 + xorps $rndkey0,$inout1 + movdqu 0x40($inp),$inout4 + aesdec $rndkey1,$inout0 + pxor $rndkey0,$inout2 + movdqu 0x50($inp),$inout5 + aesdec $rndkey1,$inout1 + pxor $rndkey0,$inout3 + movdqu 0x60($inp),$inout6 + aesdec $rndkey1,$inout2 + pxor $rndkey0,$inout4 + movdqu 0x70($inp),$inout7 + aesdec $rndkey1,$inout3 + pxor $rndkey0,$inout5 + dec $rounds + aesdec $rndkey1,$inout4 + pxor $rndkey0,$inout6 + aesdec $rndkey1,$inout5 + pxor $rndkey0,$inout7 + $movkey ($key),$rndkey0 + aesdec $rndkey1,$inout6 + aesdec $rndkey1,$inout7 + $movkey 16($key),$rndkey1 + + call .Ldec_loop8_enter + + movups ($inp),$rndkey1 # re-load input + movups 0x10($inp),$rndkey0 + xorps $reserved(%rsp),$inout0 # ^= IV + xorps $rndkey1,$inout1 + movups 0x20($inp),$rndkey1 + xorps $rndkey0,$inout2 + movups 0x30($inp),$rndkey0 + xorps $rndkey1,$inout3 + movups 0x40($inp),$rndkey1 + xorps $rndkey0,$inout4 + movups 0x50($inp),$rndkey0 + xorps $rndkey1,$inout5 + movups 0x60($inp),$rndkey1 + xorps $rndkey0,$inout6 + movups 0x70($inp),$rndkey0 # IV + xorps $rndkey1,$inout7 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + mov $rnds_,$rounds # restore $rounds + movups $inout4,0x40($out) + mov $key_,$key # restore $key + movups $inout5,0x50($out) + lea 0x80($inp),$inp + movups $inout6,0x60($out) + lea 0x70($out),$out + sub \$0x80,$len + ja .Lcbc_dec_loop8 + + movaps $inout7,$inout0 + movaps $rndkey0,$iv + add \$0x70,$len + jle .Lcbc_dec_tail_collected + movups $inout0,($out) + lea 1($rnds_,$rnds_),$rounds + lea 0x10($out),$out +.Lcbc_dec_tail: + movups ($inp),$inout0 + movaps $inout0,$in0 + cmp \$0x10,$len + jbe .Lcbc_dec_one + + movups 0x10($inp),$inout1 + movaps $inout1,$in1 + cmp \$0x20,$len + jbe .Lcbc_dec_two + + movups 0x20($inp),$inout2 + movaps $inout2,$in2 + cmp \$0x30,$len + jbe .Lcbc_dec_three + + movups 0x30($inp),$inout3 + cmp \$0x40,$len + jbe .Lcbc_dec_four + + movups 0x40($inp),$inout4 + cmp \$0x50,$len + jbe .Lcbc_dec_five + + movups 0x50($inp),$inout5 + cmp \$0x60,$len + jbe .Lcbc_dec_six + + movups 0x60($inp),$inout6 + movaps $iv,$reserved(%rsp) # save IV + call _aesni_decrypt8 + movups ($inp),$rndkey1 + movups 0x10($inp),$rndkey0 + xorps $reserved(%rsp),$inout0 # ^= IV + xorps $rndkey1,$inout1 + movups 0x20($inp),$rndkey1 + xorps $rndkey0,$inout2 + movups 0x30($inp),$rndkey0 + xorps $rndkey1,$inout3 + movups 0x40($inp),$rndkey1 + xorps $rndkey0,$inout4 + movups 0x50($inp),$rndkey0 + xorps $rndkey1,$inout5 + movups 0x60($inp),$iv # IV + xorps $rndkey0,$inout6 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + movups $inout4,0x40($out) + movups $inout5,0x50($out) + lea 0x60($out),$out + movaps $inout6,$inout0 + sub \$0x70,$len + jmp .Lcbc_dec_tail_collected +.align 16 +.Lcbc_dec_one: +___ + &aesni_generate1("dec",$key,$rounds); +$code.=<<___; + xorps $iv,$inout0 + movaps $in0,$iv + sub \$0x10,$len + jmp .Lcbc_dec_tail_collected +.align 16 +.Lcbc_dec_two: + xorps $inout2,$inout2 + call _aesni_decrypt3 + xorps $iv,$inout0 + xorps $in0,$inout1 + movups $inout0,($out) + movaps $in1,$iv + movaps $inout1,$inout0 + lea 0x10($out),$out + sub \$0x20,$len + jmp .Lcbc_dec_tail_collected +.align 16 +.Lcbc_dec_three: + call _aesni_decrypt3 + xorps $iv,$inout0 + xorps $in0,$inout1 + movups $inout0,($out) + xorps $in1,$inout2 + movups $inout1,0x10($out) + movaps $in2,$iv + movaps $inout2,$inout0 + lea 0x20($out),$out + sub \$0x30,$len + jmp .Lcbc_dec_tail_collected +.align 16 +.Lcbc_dec_four: + call _aesni_decrypt4 + xorps $iv,$inout0 + movups 0x30($inp),$iv + xorps $in0,$inout1 + movups $inout0,($out) + xorps $in1,$inout2 + movups $inout1,0x10($out) + xorps $in2,$inout3 + movups $inout2,0x20($out) + movaps $inout3,$inout0 + lea 0x30($out),$out + sub \$0x40,$len + jmp .Lcbc_dec_tail_collected +.align 16 +.Lcbc_dec_five: + xorps $inout5,$inout5 + call _aesni_decrypt6 + movups 0x10($inp),$rndkey1 + movups 0x20($inp),$rndkey0 + xorps $iv,$inout0 + xorps $in0,$inout1 + xorps $rndkey1,$inout2 + movups 0x30($inp),$rndkey1 + xorps $rndkey0,$inout3 + movups 0x40($inp),$iv + xorps $rndkey1,$inout4 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + lea 0x40($out),$out + movaps $inout4,$inout0 + sub \$0x50,$len + jmp .Lcbc_dec_tail_collected +.align 16 +.Lcbc_dec_six: + call _aesni_decrypt6 + movups 0x10($inp),$rndkey1 + movups 0x20($inp),$rndkey0 + xorps $iv,$inout0 + xorps $in0,$inout1 + xorps $rndkey1,$inout2 + movups 0x30($inp),$rndkey1 + xorps $rndkey0,$inout3 + movups 0x40($inp),$rndkey0 + xorps $rndkey1,$inout4 + movups 0x50($inp),$iv + xorps $rndkey0,$inout5 + movups $inout0,($out) + movups $inout1,0x10($out) + movups $inout2,0x20($out) + movups $inout3,0x30($out) + movups $inout4,0x40($out) + lea 0x50($out),$out + movaps $inout5,$inout0 + sub \$0x60,$len + jmp .Lcbc_dec_tail_collected +.align 16 +.Lcbc_dec_tail_collected: + and \$15,$len + movups $iv,($ivp) + jnz .Lcbc_dec_tail_partial + movups $inout0,($out) + jmp .Lcbc_dec_ret +.align 16 +.Lcbc_dec_tail_partial: + movaps $inout0,$reserved(%rsp) + mov \$16,%rcx + mov $out,%rdi + sub $len,%rcx + lea $reserved(%rsp),%rsi + .long 0x9066A4F3 # rep movsb + +.Lcbc_dec_ret: +___ +$code.=<<___ if ($win64); + movaps (%rsp),%xmm6 + movaps 0x10(%rsp),%xmm7 + movaps 0x20(%rsp),%xmm8 + movaps 0x30(%rsp),%xmm9 + lea 0x58(%rsp),%rsp +___ +$code.=<<___; +.Lcbc_ret: + ret +.size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt +___ +} +# int $PREFIX_set_[en|de]crypt_key (const unsigned char *userKey, +# int bits, AES_KEY *key) +{ my ($inp,$bits,$key) = @_4args; + $bits =~ s/%r/%e/; + +$code.=<<___; +.globl ${PREFIX}_set_decrypt_key +.type ${PREFIX}_set_decrypt_key,\@abi-omnipotent +.align 16 +${PREFIX}_set_decrypt_key: + .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 + call __aesni_set_encrypt_key + shl \$4,$bits # rounds-1 after _aesni_set_encrypt_key + test %eax,%eax + jnz .Ldec_key_ret + lea 16($key,$bits),$inp # points at the end of key schedule + + $movkey ($key),%xmm0 # just swap + $movkey ($inp),%xmm1 + $movkey %xmm0,($inp) + $movkey %xmm1,($key) + lea 16($key),$key + lea -16($inp),$inp + +.Ldec_key_inverse: + $movkey ($key),%xmm0 # swap and inverse + $movkey ($inp),%xmm1 + aesimc %xmm0,%xmm0 + aesimc %xmm1,%xmm1 + lea 16($key),$key + lea -16($inp),$inp + $movkey %xmm0,16($inp) + $movkey %xmm1,-16($key) + cmp $key,$inp + ja .Ldec_key_inverse + + $movkey ($key),%xmm0 # inverse middle + aesimc %xmm0,%xmm0 + $movkey %xmm0,($inp) +.Ldec_key_ret: + add \$8,%rsp + ret +.LSEH_end_set_decrypt_key: +.size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key +___ + +# This is based on submission by +# +# Huang Ying <ying.huang@intel.com> +# Vinodh Gopal <vinodh.gopal@intel.com> +# Kahraman Akdemir +# +# Agressively optimized in respect to aeskeygenassist's critical path +# and is contained in %xmm0-5 to meet Win64 ABI requirement. +# +$code.=<<___; +.globl ${PREFIX}_set_encrypt_key +.type ${PREFIX}_set_encrypt_key,\@abi-omnipotent +.align 16 +${PREFIX}_set_encrypt_key: +__aesni_set_encrypt_key: + .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 + mov \$-1,%rax + test $inp,$inp + jz .Lenc_key_ret + test $key,$key + jz .Lenc_key_ret + + movups ($inp),%xmm0 # pull first 128 bits of *userKey + xorps %xmm4,%xmm4 # low dword of xmm4 is assumed 0 + lea 16($key),%rax + cmp \$256,$bits + je .L14rounds + cmp \$192,$bits + je .L12rounds + cmp \$128,$bits + jne .Lbad_keybits + +.L10rounds: + mov \$9,$bits # 10 rounds for 128-bit key + $movkey %xmm0,($key) # round 0 + aeskeygenassist \$0x1,%xmm0,%xmm1 # round 1 + call .Lkey_expansion_128_cold + aeskeygenassist \$0x2,%xmm0,%xmm1 # round 2 + call .Lkey_expansion_128 + aeskeygenassist \$0x4,%xmm0,%xmm1 # round 3 + call .Lkey_expansion_128 + aeskeygenassist \$0x8,%xmm0,%xmm1 # round 4 + call .Lkey_expansion_128 + aeskeygenassist \$0x10,%xmm0,%xmm1 # round 5 + call .Lkey_expansion_128 + aeskeygenassist \$0x20,%xmm0,%xmm1 # round 6 + call .Lkey_expansion_128 + aeskeygenassist \$0x40,%xmm0,%xmm1 # round 7 + call .Lkey_expansion_128 + aeskeygenassist \$0x80,%xmm0,%xmm1 # round 8 + call .Lkey_expansion_128 + aeskeygenassist \$0x1b,%xmm0,%xmm1 # round 9 + call .Lkey_expansion_128 + aeskeygenassist \$0x36,%xmm0,%xmm1 # round 10 + call .Lkey_expansion_128 + $movkey %xmm0,(%rax) + mov $bits,80(%rax) # 240(%rdx) + xor %eax,%eax + jmp .Lenc_key_ret + +.align 16 +.L12rounds: + movq 16($inp),%xmm2 # remaining 1/3 of *userKey + mov \$11,$bits # 12 rounds for 192 + $movkey %xmm0,($key) # round 0 + aeskeygenassist \$0x1,%xmm2,%xmm1 # round 1,2 + call .Lkey_expansion_192a_cold + aeskeygenassist \$0x2,%xmm2,%xmm1 # round 2,3 + call .Lkey_expansion_192b + aeskeygenassist \$0x4,%xmm2,%xmm1 # round 4,5 + call .Lkey_expansion_192a + aeskeygenassist \$0x8,%xmm2,%xmm1 # round 5,6 + call .Lkey_expansion_192b + aeskeygenassist \$0x10,%xmm2,%xmm1 # round 7,8 + call .Lkey_expansion_192a + aeskeygenassist \$0x20,%xmm2,%xmm1 # round 8,9 + call .Lkey_expansion_192b + aeskeygenassist \$0x40,%xmm2,%xmm1 # round 10,11 + call .Lkey_expansion_192a + aeskeygenassist \$0x80,%xmm2,%xmm1 # round 11,12 + call .Lkey_expansion_192b + $movkey %xmm0,(%rax) + mov $bits,48(%rax) # 240(%rdx) + xor %rax, %rax + jmp .Lenc_key_ret + +.align 16 +.L14rounds: + movups 16($inp),%xmm2 # remaning half of *userKey + mov \$13,$bits # 14 rounds for 256 + lea 16(%rax),%rax + $movkey %xmm0,($key) # round 0 + $movkey %xmm2,16($key) # round 1 + aeskeygenassist \$0x1,%xmm2,%xmm1 # round 2 + call .Lkey_expansion_256a_cold + aeskeygenassist \$0x1,%xmm0,%xmm1 # round 3 + call .Lkey_expansion_256b + aeskeygenassist \$0x2,%xmm2,%xmm1 # round 4 + call .Lkey_expansion_256a + aeskeygenassist \$0x2,%xmm0,%xmm1 # round 5 + call .Lkey_expansion_256b + aeskeygenassist \$0x4,%xmm2,%xmm1 # round 6 + call .Lkey_expansion_256a + aeskeygenassist \$0x4,%xmm0,%xmm1 # round 7 + call .Lkey_expansion_256b + aeskeygenassist \$0x8,%xmm2,%xmm1 # round 8 + call .Lkey_expansion_256a + aeskeygenassist \$0x8,%xmm0,%xmm1 # round 9 + call .Lkey_expansion_256b + aeskeygenassist \$0x10,%xmm2,%xmm1 # round 10 + call .Lkey_expansion_256a + aeskeygenassist \$0x10,%xmm0,%xmm1 # round 11 + call .Lkey_expansion_256b + aeskeygenassist \$0x20,%xmm2,%xmm1 # round 12 + call .Lkey_expansion_256a + aeskeygenassist \$0x20,%xmm0,%xmm1 # round 13 + call .Lkey_expansion_256b + aeskeygenassist \$0x40,%xmm2,%xmm1 # round 14 + call .Lkey_expansion_256a + $movkey %xmm0,(%rax) + mov $bits,16(%rax) # 240(%rdx) + xor %rax,%rax + jmp .Lenc_key_ret + +.align 16 +.Lbad_keybits: + mov \$-2,%rax +.Lenc_key_ret: + add \$8,%rsp + ret +.LSEH_end_set_encrypt_key: + +.align 16 +.Lkey_expansion_128: + $movkey %xmm0,(%rax) + lea 16(%rax),%rax +.Lkey_expansion_128_cold: + shufps \$0b00010000,%xmm0,%xmm4 + xorps %xmm4, %xmm0 + shufps \$0b10001100,%xmm0,%xmm4 + xorps %xmm4, %xmm0 + shufps \$0b11111111,%xmm1,%xmm1 # critical path + xorps %xmm1,%xmm0 + ret + +.align 16 +.Lkey_expansion_192a: + $movkey %xmm0,(%rax) + lea 16(%rax),%rax +.Lkey_expansion_192a_cold: + movaps %xmm2, %xmm5 +.Lkey_expansion_192b_warm: + shufps \$0b00010000,%xmm0,%xmm4 + movdqa %xmm2,%xmm3 + xorps %xmm4,%xmm0 + shufps \$0b10001100,%xmm0,%xmm4 + pslldq \$4,%xmm3 + xorps %xmm4,%xmm0 + pshufd \$0b01010101,%xmm1,%xmm1 # critical path + pxor %xmm3,%xmm2 + pxor %xmm1,%xmm0 + pshufd \$0b11111111,%xmm0,%xmm3 + pxor %xmm3,%xmm2 + ret + +.align 16 +.Lkey_expansion_192b: + movaps %xmm0,%xmm3 + shufps \$0b01000100,%xmm0,%xmm5 + $movkey %xmm5,(%rax) + shufps \$0b01001110,%xmm2,%xmm3 + $movkey %xmm3,16(%rax) + lea 32(%rax),%rax + jmp .Lkey_expansion_192b_warm + +.align 16 +.Lkey_expansion_256a: + $movkey %xmm2,(%rax) + lea 16(%rax),%rax +.Lkey_expansion_256a_cold: + shufps \$0b00010000,%xmm0,%xmm4 + xorps %xmm4,%xmm0 + shufps \$0b10001100,%xmm0,%xmm4 + xorps %xmm4,%xmm0 + shufps \$0b11111111,%xmm1,%xmm1 # critical path + xorps %xmm1,%xmm0 + ret + +.align 16 +.Lkey_expansion_256b: + $movkey %xmm0,(%rax) + lea 16(%rax),%rax + + shufps \$0b00010000,%xmm2,%xmm4 + xorps %xmm4,%xmm2 + shufps \$0b10001100,%xmm2,%xmm4 + xorps %xmm4,%xmm2 + shufps \$0b10101010,%xmm1,%xmm1 # critical path + xorps %xmm1,%xmm2 + ret +.size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key +.size __aesni_set_encrypt_key,.-__aesni_set_encrypt_key +___ +} + +$code.=<<___; +.align 64 +.Lbswap_mask: + .byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0 +.Lincrement32: + .long 6,6,6,0 +.Lincrement64: + .long 1,0,0,0 +.Lxts_magic: + .long 0x87,0,1,0 + +.asciz "AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>" +.align 64 +___ + +# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, +# CONTEXT *context,DISPATCHER_CONTEXT *disp) +if ($win64) { +$rec="%rcx"; +$frame="%rdx"; +$context="%r8"; +$disp="%r9"; + +$code.=<<___; +.extern __imp_RtlVirtualUnwind +___ +$code.=<<___ if ($PREFIX eq "aesni"); +.type ecb_se_handler,\@abi-omnipotent +.align 16 +ecb_se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 152($context),%rax # pull context->Rsp + + jmp .Lcommon_seh_tail +.size ecb_se_handler,.-ecb_se_handler + +.type ccm64_se_handler,\@abi-omnipotent +.align 16 +ccm64_se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 120($context),%rax # pull context->Rax + mov 248($context),%rbx # pull context->Rip + + mov 8($disp),%rsi # disp->ImageBase + mov 56($disp),%r11 # disp->HandlerData + + mov 0(%r11),%r10d # HandlerData[0] + lea (%rsi,%r10),%r10 # prologue label + cmp %r10,%rbx # context->Rip<prologue label + jb .Lcommon_seh_tail + + mov 152($context),%rax # pull context->Rsp + + mov 4(%r11),%r10d # HandlerData[1] + lea (%rsi,%r10),%r10 # epilogue label + cmp %r10,%rbx # context->Rip>=epilogue label + jae .Lcommon_seh_tail + + lea 0(%rax),%rsi # %xmm save area + lea 512($context),%rdi # &context.Xmm6 + mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax) + .long 0xa548f3fc # cld; rep movsq + lea 0x58(%rax),%rax # adjust stack pointer + + jmp .Lcommon_seh_tail +.size ccm64_se_handler,.-ccm64_se_handler + +.type ctr32_se_handler,\@abi-omnipotent +.align 16 +ctr32_se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 120($context),%rax # pull context->Rax + mov 248($context),%rbx # pull context->Rip + + lea .Lctr32_body(%rip),%r10 + cmp %r10,%rbx # context->Rip<"prologue" label + jb .Lcommon_seh_tail + + mov 152($context),%rax # pull context->Rsp + + lea .Lctr32_ret(%rip),%r10 + cmp %r10,%rbx + jae .Lcommon_seh_tail + + lea 0x20(%rax),%rsi # %xmm save area + lea 512($context),%rdi # &context.Xmm6 + mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) + .long 0xa548f3fc # cld; rep movsq + lea 0xc8(%rax),%rax # adjust stack pointer + + jmp .Lcommon_seh_tail +.size ctr32_se_handler,.-ctr32_se_handler + +.type xts_se_handler,\@abi-omnipotent +.align 16 +xts_se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 120($context),%rax # pull context->Rax + mov 248($context),%rbx # pull context->Rip + + mov 8($disp),%rsi # disp->ImageBase + mov 56($disp),%r11 # disp->HandlerData + + mov 0(%r11),%r10d # HandlerData[0] + lea (%rsi,%r10),%r10 # prologue lable + cmp %r10,%rbx # context->Rip<prologue label + jb .Lcommon_seh_tail + + mov 152($context),%rax # pull context->Rsp + + mov 4(%r11),%r10d # HandlerData[1] + lea (%rsi,%r10),%r10 # epilogue label + cmp %r10,%rbx # context->Rip>=epilogue label + jae .Lcommon_seh_tail + + lea 0x60(%rax),%rsi # %xmm save area + lea 512($context),%rdi # & context.Xmm6 + mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) + .long 0xa548f3fc # cld; rep movsq + lea 0x68+160(%rax),%rax # adjust stack pointer + + jmp .Lcommon_seh_tail +.size xts_se_handler,.-xts_se_handler +___ +$code.=<<___; +.type cbc_se_handler,\@abi-omnipotent +.align 16 +cbc_se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 152($context),%rax # pull context->Rsp + mov 248($context),%rbx # pull context->Rip + + lea .Lcbc_decrypt(%rip),%r10 + cmp %r10,%rbx # context->Rip<"prologue" label + jb .Lcommon_seh_tail + + lea .Lcbc_decrypt_body(%rip),%r10 + cmp %r10,%rbx # context->Rip<cbc_decrypt_body + jb .Lrestore_cbc_rax + + lea .Lcbc_ret(%rip),%r10 + cmp %r10,%rbx # context->Rip>="epilogue" label + jae .Lcommon_seh_tail + + lea 0(%rax),%rsi # top of stack + lea 512($context),%rdi # &context.Xmm6 + mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax) + .long 0xa548f3fc # cld; rep movsq + lea 0x58(%rax),%rax # adjust stack pointer + jmp .Lcommon_seh_tail + +.Lrestore_cbc_rax: + mov 120($context),%rax + +.Lcommon_seh_tail: + mov 8(%rax),%rdi + mov 16(%rax),%rsi + mov %rax,152($context) # restore context->Rsp + mov %rsi,168($context) # restore context->Rsi + mov %rdi,176($context) # restore context->Rdi + + mov 40($disp),%rdi # disp->ContextRecord + mov $context,%rsi # context + mov \$154,%ecx # sizeof(CONTEXT) + .long 0xa548f3fc # cld; rep movsq + + mov $disp,%rsi + xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER + mov 8(%rsi),%rdx # arg2, disp->ImageBase + mov 0(%rsi),%r8 # arg3, disp->ControlPc + mov 16(%rsi),%r9 # arg4, disp->FunctionEntry + mov 40(%rsi),%r10 # disp->ContextRecord + lea 56(%rsi),%r11 # &disp->HandlerData + lea 24(%rsi),%r12 # &disp->EstablisherFrame + mov %r10,32(%rsp) # arg5 + mov %r11,40(%rsp) # arg6 + mov %r12,48(%rsp) # arg7 + mov %rcx,56(%rsp) # arg8, (NULL) + call *__imp_RtlVirtualUnwind(%rip) + + mov \$1,%eax # ExceptionContinueSearch + add \$64,%rsp + popfq + pop %r15 + pop %r14 + pop %r13 + pop %r12 + pop %rbp + pop %rbx + pop %rdi + pop %rsi + ret +.size cbc_se_handler,.-cbc_se_handler + +.section .pdata +.align 4 +___ +$code.=<<___ if ($PREFIX eq "aesni"); + .rva .LSEH_begin_aesni_ecb_encrypt + .rva .LSEH_end_aesni_ecb_encrypt + .rva .LSEH_info_ecb + + .rva .LSEH_begin_aesni_ccm64_encrypt_blocks + .rva .LSEH_end_aesni_ccm64_encrypt_blocks + .rva .LSEH_info_ccm64_enc + + .rva .LSEH_begin_aesni_ccm64_decrypt_blocks + .rva .LSEH_end_aesni_ccm64_decrypt_blocks + .rva .LSEH_info_ccm64_dec + + .rva .LSEH_begin_aesni_ctr32_encrypt_blocks + .rva .LSEH_end_aesni_ctr32_encrypt_blocks + .rva .LSEH_info_ctr32 + + .rva .LSEH_begin_aesni_xts_encrypt + .rva .LSEH_end_aesni_xts_encrypt + .rva .LSEH_info_xts_enc + + .rva .LSEH_begin_aesni_xts_decrypt + .rva .LSEH_end_aesni_xts_decrypt + .rva .LSEH_info_xts_dec +___ +$code.=<<___; + .rva .LSEH_begin_${PREFIX}_cbc_encrypt + .rva .LSEH_end_${PREFIX}_cbc_encrypt + .rva .LSEH_info_cbc + + .rva ${PREFIX}_set_decrypt_key + .rva .LSEH_end_set_decrypt_key + .rva .LSEH_info_key + + .rva ${PREFIX}_set_encrypt_key + .rva .LSEH_end_set_encrypt_key + .rva .LSEH_info_key +.section .xdata +.align 8 +___ +$code.=<<___ if ($PREFIX eq "aesni"); +.LSEH_info_ecb: + .byte 9,0,0,0 + .rva ecb_se_handler +.LSEH_info_ccm64_enc: + .byte 9,0,0,0 + .rva ccm64_se_handler + .rva .Lccm64_enc_body,.Lccm64_enc_ret # HandlerData[] +.LSEH_info_ccm64_dec: + .byte 9,0,0,0 + .rva ccm64_se_handler + .rva .Lccm64_dec_body,.Lccm64_dec_ret # HandlerData[] +.LSEH_info_ctr32: + .byte 9,0,0,0 + .rva ctr32_se_handler +.LSEH_info_xts_enc: + .byte 9,0,0,0 + .rva xts_se_handler + .rva .Lxts_enc_body,.Lxts_enc_epilogue # HandlerData[] +.LSEH_info_xts_dec: + .byte 9,0,0,0 + .rva xts_se_handler + .rva .Lxts_dec_body,.Lxts_dec_epilogue # HandlerData[] +___ +$code.=<<___; +.LSEH_info_cbc: + .byte 9,0,0,0 + .rva cbc_se_handler +.LSEH_info_key: + .byte 0x01,0x04,0x01,0x00 + .byte 0x04,0x02,0x00,0x00 # sub rsp,8 +___ +} + +sub rex { + local *opcode=shift; + my ($dst,$src)=@_; + my $rex=0; + + $rex|=0x04 if($dst>=8); + $rex|=0x01 if($src>=8); + push @opcode,$rex|0x40 if($rex); +} + +sub aesni { + my $line=shift; + my @opcode=(0x66); + + if ($line=~/(aeskeygenassist)\s+\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) { + rex(\@opcode,$4,$3); + push @opcode,0x0f,0x3a,0xdf; + push @opcode,0xc0|($3&7)|(($4&7)<<3); # ModR/M + my $c=$2; + push @opcode,$c=~/^0/?oct($c):$c; + return ".byte\t".join(',',@opcode); + } + elsif ($line=~/(aes[a-z]+)\s+%xmm([0-9]+),\s*%xmm([0-9]+)/) { + my %opcodelet = ( + "aesimc" => 0xdb, + "aesenc" => 0xdc, "aesenclast" => 0xdd, + "aesdec" => 0xde, "aesdeclast" => 0xdf + ); + return undef if (!defined($opcodelet{$1})); + rex(\@opcode,$3,$2); + push @opcode,0x0f,0x38,$opcodelet{$1}; + push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M + return ".byte\t".join(',',@opcode); + } + return $line; +} + +$code =~ s/\`([^\`]*)\`/eval($1)/gem; +$code =~ s/\b(aes.*%xmm[0-9]+).*$/aesni($1)/gem; + +print $code; + +close STDOUT; diff --git a/crypto/aes/asm/bsaes-armv7.pl b/crypto/aes/asm/bsaes-armv7.pl new file mode 100644 index 00000000..3da85429 --- /dev/null +++ b/crypto/aes/asm/bsaes-armv7.pl @@ -0,0 +1,2469 @@ +#!/usr/bin/env perl + +# ==================================================================== +# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# +# Specific modes and adaptation for Linux kernel by Ard Biesheuvel +# <ard.biesheuvel@linaro.org>. Permission to use under GPL terms is +# granted. +# ==================================================================== + +# Bit-sliced AES for ARM NEON +# +# February 2012. +# +# This implementation is direct adaptation of bsaes-x86_64 module for +# ARM NEON. Except that this module is endian-neutral [in sense that +# it can be compiled for either endianness] by courtesy of vld1.8's +# neutrality. Initial version doesn't implement interface to OpenSSL, +# only low-level primitives and unsupported entry points, just enough +# to collect performance results, which for Cortex-A8 core are: +# +# encrypt 19.5 cycles per byte processed with 128-bit key +# decrypt 22.1 cycles per byte processed with 128-bit key +# key conv. 440 cycles per 128-bit key/0.18 of 8x block +# +# Snapdragon S4 encrypts byte in 17.6 cycles and decrypts in 19.7, +# which is [much] worse than anticipated (for further details see +# http://www.openssl.org/~appro/Snapdragon-S4.html). +# +# Cortex-A15 manages in 14.2/16.1 cycles [when integer-only code +# manages in 20.0 cycles]. +# +# When comparing to x86_64 results keep in mind that NEON unit is +# [mostly] single-issue and thus can't [fully] benefit from +# instruction-level parallelism. And when comparing to aes-armv4 +# results keep in mind key schedule conversion overhead (see +# bsaes-x86_64.pl for further details)... +# +# <appro@openssl.org> + +# April-August 2013 +# +# Add CBC, CTR and XTS subroutines, adapt for kernel use. +# +# <ard.biesheuvel@linaro.org> + +while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} +open STDOUT,">$output"; + +my ($inp,$out,$len,$key)=("r0","r1","r2","r3"); +my @XMM=map("q$_",(0..15)); + +{ +my ($key,$rounds,$const)=("r4","r5","r6"); + +sub Dlo() { shift=~m|q([1]?[0-9])|?"d".($1*2):""; } +sub Dhi() { shift=~m|q([1]?[0-9])|?"d".($1*2+1):""; } + +sub Sbox { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b0, b1, b4, b6, b3, b7, b2, b5] < msb +my @b=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; + &InBasisChange (@b); + &Inv_GF256 (@b[6,5,0,3,7,1,4,2],@t,@s); + &OutBasisChange (@b[7,1,4,2,6,5,0,3]); +} + +sub InBasisChange { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b6, b5, b0, b3, b7, b1, b4, b2] < msb +my @b=@_[0..7]; +$code.=<<___; + veor @b[2], @b[2], @b[1] + veor @b[5], @b[5], @b[6] + veor @b[3], @b[3], @b[0] + veor @b[6], @b[6], @b[2] + veor @b[5], @b[5], @b[0] + + veor @b[6], @b[6], @b[3] + veor @b[3], @b[3], @b[7] + veor @b[7], @b[7], @b[5] + veor @b[3], @b[3], @b[4] + veor @b[4], @b[4], @b[5] + + veor @b[2], @b[2], @b[7] + veor @b[3], @b[3], @b[1] + veor @b[1], @b[1], @b[5] +___ +} + +sub OutBasisChange { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b6, b1, b2, b4, b7, b0, b3, b5] < msb +my @b=@_[0..7]; +$code.=<<___; + veor @b[0], @b[0], @b[6] + veor @b[1], @b[1], @b[4] + veor @b[4], @b[4], @b[6] + veor @b[2], @b[2], @b[0] + veor @b[6], @b[6], @b[1] + + veor @b[1], @b[1], @b[5] + veor @b[5], @b[5], @b[3] + veor @b[3], @b[3], @b[7] + veor @b[7], @b[7], @b[5] + veor @b[2], @b[2], @b[5] + + veor @b[4], @b[4], @b[7] +___ +} + +sub InvSbox { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b0, b1, b6, b4, b2, b7, b3, b5] < msb +my @b=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; + &InvInBasisChange (@b); + &Inv_GF256 (@b[5,1,2,6,3,7,0,4],@t,@s); + &InvOutBasisChange (@b[3,7,0,4,5,1,2,6]); +} + +sub InvInBasisChange { # OutBasisChange in reverse (with twist) +my @b=@_[5,1,2,6,3,7,0,4]; +$code.=<<___ + veor @b[1], @b[1], @b[7] + veor @b[4], @b[4], @b[7] + + veor @b[7], @b[7], @b[5] + veor @b[1], @b[1], @b[3] + veor @b[2], @b[2], @b[5] + veor @b[3], @b[3], @b[7] + + veor @b[6], @b[6], @b[1] + veor @b[2], @b[2], @b[0] + veor @b[5], @b[5], @b[3] + veor @b[4], @b[4], @b[6] + veor @b[0], @b[0], @b[6] + veor @b[1], @b[1], @b[4] +___ +} + +sub InvOutBasisChange { # InBasisChange in reverse +my @b=@_[2,5,7,3,6,1,0,4]; +$code.=<<___; + veor @b[1], @b[1], @b[5] + veor @b[2], @b[2], @b[7] + + veor @b[3], @b[3], @b[1] + veor @b[4], @b[4], @b[5] + veor @b[7], @b[7], @b[5] + veor @b[3], @b[3], @b[4] + veor @b[5], @b[5], @b[0] + veor @b[3], @b[3], @b[7] + veor @b[6], @b[6], @b[2] + veor @b[2], @b[2], @b[1] + veor @b[6], @b[6], @b[3] + + veor @b[3], @b[3], @b[0] + veor @b[5], @b[5], @b[6] +___ +} + +sub Mul_GF4 { +#;************************************************************* +#;* Mul_GF4: Input x0-x1,y0-y1 Output x0-x1 Temp t0 (8) * +#;************************************************************* +my ($x0,$x1,$y0,$y1,$t0,$t1)=@_; +$code.=<<___; + veor $t0, $y0, $y1 + vand $t0, $t0, $x0 + veor $x0, $x0, $x1 + vand $t1, $x1, $y0 + vand $x0, $x0, $y1 + veor $x1, $t1, $t0 + veor $x0, $x0, $t1 +___ +} + +sub Mul_GF4_N { # not used, see next subroutine +# multiply and scale by N +my ($x0,$x1,$y0,$y1,$t0)=@_; +$code.=<<___; + veor $t0, $y0, $y1 + vand $t0, $t0, $x0 + veor $x0, $x0, $x1 + vand $x1, $x1, $y0 + vand $x0, $x0, $y1 + veor $x1, $x1, $x0 + veor $x0, $x0, $t0 +___ +} + +sub Mul_GF4_N_GF4 { +# interleaved Mul_GF4_N and Mul_GF4 +my ($x0,$x1,$y0,$y1,$t0, + $x2,$x3,$y2,$y3,$t1)=@_; +$code.=<<___; + veor $t0, $y0, $y1 + veor $t1, $y2, $y3 + vand $t0, $t0, $x0 + vand $t1, $t1, $x2 + veor $x0, $x0, $x1 + veor $x2, $x2, $x3 + vand $x1, $x1, $y0 + vand $x3, $x3, $y2 + vand $x0, $x0, $y1 + vand $x2, $x2, $y3 + veor $x1, $x1, $x0 + veor $x2, $x2, $x3 + veor $x0, $x0, $t0 + veor $x3, $x3, $t1 +___ +} +sub Mul_GF16_2 { +my @x=@_[0..7]; +my @y=@_[8..11]; +my @t=@_[12..15]; +$code.=<<___; + veor @t[0], @x[0], @x[2] + veor @t[1], @x[1], @x[3] +___ + &Mul_GF4 (@x[0], @x[1], @y[0], @y[1], @t[2..3]); +$code.=<<___; + veor @y[0], @y[0], @y[2] + veor @y[1], @y[1], @y[3] +___ + Mul_GF4_N_GF4 (@t[0], @t[1], @y[0], @y[1], @t[3], + @x[2], @x[3], @y[2], @y[3], @t[2]); +$code.=<<___; + veor @x[0], @x[0], @t[0] + veor @x[2], @x[2], @t[0] + veor @x[1], @x[1], @t[1] + veor @x[3], @x[3], @t[1] + + veor @t[0], @x[4], @x[6] + veor @t[1], @x[5], @x[7] +___ + &Mul_GF4_N_GF4 (@t[0], @t[1], @y[0], @y[1], @t[3], + @x[6], @x[7], @y[2], @y[3], @t[2]); +$code.=<<___; + veor @y[0], @y[0], @y[2] + veor @y[1], @y[1], @y[3] +___ + &Mul_GF4 (@x[4], @x[5], @y[0], @y[1], @t[2..3]); +$code.=<<___; + veor @x[4], @x[4], @t[0] + veor @x[6], @x[6], @t[0] + veor @x[5], @x[5], @t[1] + veor @x[7], @x[7], @t[1] +___ +} +sub Inv_GF256 { +#;******************************************************************** +#;* Inv_GF256: Input x0-x7 Output x0-x7 Temp t0-t3,s0-s3 (144) * +#;******************************************************************** +my @x=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; +# direct optimizations from hardware +$code.=<<___; + veor @t[3], @x[4], @x[6] + veor @t[2], @x[5], @x[7] + veor @t[1], @x[1], @x[3] + veor @s[1], @x[7], @x[6] + vmov @t[0], @t[2] + veor @s[0], @x[0], @x[2] + + vorr @t[2], @t[2], @t[1] + veor @s[3], @t[3], @t[0] + vand @s[2], @t[3], @s[0] + vorr @t[3], @t[3], @s[0] + veor @s[0], @s[0], @t[1] + vand @t[0], @t[0], @t[1] + veor @t[1], @x[3], @x[2] + vand @s[3], @s[3], @s[0] + vand @s[1], @s[1], @t[1] + veor @t[1], @x[4], @x[5] + veor @s[0], @x[1], @x[0] + veor @t[3], @t[3], @s[1] + veor @t[2], @t[2], @s[1] + vand @s[1], @t[1], @s[0] + vorr @t[1], @t[1], @s[0] + veor @t[3], @t[3], @s[3] + veor @t[0], @t[0], @s[1] + veor @t[2], @t[2], @s[2] + veor @t[1], @t[1], @s[3] + veor @t[0], @t[0], @s[2] + vand @s[0], @x[7], @x[3] + veor @t[1], @t[1], @s[2] + vand @s[1], @x[6], @x[2] + vand @s[2], @x[5], @x[1] + vorr @s[3], @x[4], @x[0] + veor @t[3], @t[3], @s[0] + veor @t[1], @t[1], @s[2] + veor @t[0], @t[0], @s[3] + veor @t[2], @t[2], @s[1] + + @ Inv_GF16 \t0, \t1, \t2, \t3, \s0, \s1, \s2, \s3 + + @ new smaller inversion + + vand @s[2], @t[3], @t[1] + vmov @s[0], @t[0] + + veor @s[1], @t[2], @s[2] + veor @s[3], @t[0], @s[2] + veor @s[2], @t[0], @s[2] @ @s[2]=@s[3] + + vbsl @s[1], @t[1], @t[0] + vbsl @s[3], @t[3], @t[2] + veor @t[3], @t[3], @t[2] + + vbsl @s[0], @s[1], @s[2] + vbsl @t[0], @s[2], @s[1] + + vand @s[2], @s[0], @s[3] + veor @t[1], @t[1], @t[0] + + veor @s[2], @s[2], @t[3] +___ +# output in s3, s2, s1, t1 + +# Mul_GF16_2 \x0, \x1, \x2, \x3, \x4, \x5, \x6, \x7, \t2, \t3, \t0, \t1, \s0, \s1, \s2, \s3 + +# Mul_GF16_2 \x0, \x1, \x2, \x3, \x4, \x5, \x6, \x7, \s3, \s2, \s1, \t1, \s0, \t0, \t2, \t3 + &Mul_GF16_2(@x,@s[3,2,1],@t[1],@s[0],@t[0,2,3]); + +### output msb > [x3,x2,x1,x0,x7,x6,x5,x4] < lsb +} + +# AES linear components + +sub ShiftRows { +my @x=@_[0..7]; +my @t=@_[8..11]; +my $mask=pop; +$code.=<<___; + vldmia $key!, {@t[0]-@t[3]} + veor @t[0], @t[0], @x[0] + veor @t[1], @t[1], @x[1] + vtbl.8 `&Dlo(@x[0])`, {@t[0]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[0])`, {@t[0]}, `&Dhi($mask)` + vldmia $key!, {@t[0]} + veor @t[2], @t[2], @x[2] + vtbl.8 `&Dlo(@x[1])`, {@t[1]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[1])`, {@t[1]}, `&Dhi($mask)` + vldmia $key!, {@t[1]} + veor @t[3], @t[3], @x[3] + vtbl.8 `&Dlo(@x[2])`, {@t[2]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[2])`, {@t[2]}, `&Dhi($mask)` + vldmia $key!, {@t[2]} + vtbl.8 `&Dlo(@x[3])`, {@t[3]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[3])`, {@t[3]}, `&Dhi($mask)` + vldmia $key!, {@t[3]} + veor @t[0], @t[0], @x[4] + veor @t[1], @t[1], @x[5] + vtbl.8 `&Dlo(@x[4])`, {@t[0]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[4])`, {@t[0]}, `&Dhi($mask)` + veor @t[2], @t[2], @x[6] + vtbl.8 `&Dlo(@x[5])`, {@t[1]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[5])`, {@t[1]}, `&Dhi($mask)` + veor @t[3], @t[3], @x[7] + vtbl.8 `&Dlo(@x[6])`, {@t[2]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[6])`, {@t[2]}, `&Dhi($mask)` + vtbl.8 `&Dlo(@x[7])`, {@t[3]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[7])`, {@t[3]}, `&Dhi($mask)` +___ +} + +sub MixColumns { +# modified to emit output in order suitable for feeding back to aesenc[last] +my @x=@_[0..7]; +my @t=@_[8..15]; +my $inv=@_[16]; # optional +$code.=<<___; + vext.8 @t[0], @x[0], @x[0], #12 @ x0 <<< 32 + vext.8 @t[1], @x[1], @x[1], #12 + veor @x[0], @x[0], @t[0] @ x0 ^ (x0 <<< 32) + vext.8 @t[2], @x[2], @x[2], #12 + veor @x[1], @x[1], @t[1] + vext.8 @t[3], @x[3], @x[3], #12 + veor @x[2], @x[2], @t[2] + vext.8 @t[4], @x[4], @x[4], #12 + veor @x[3], @x[3], @t[3] + vext.8 @t[5], @x[5], @x[5], #12 + veor @x[4], @x[4], @t[4] + vext.8 @t[6], @x[6], @x[6], #12 + veor @x[5], @x[5], @t[5] + vext.8 @t[7], @x[7], @x[7], #12 + veor @x[6], @x[6], @t[6] + + veor @t[1], @t[1], @x[0] + veor @x[7], @x[7], @t[7] + vext.8 @x[0], @x[0], @x[0], #8 @ (x0 ^ (x0 <<< 32)) <<< 64) + veor @t[2], @t[2], @x[1] + veor @t[0], @t[0], @x[7] + veor @t[1], @t[1], @x[7] + vext.8 @x[1], @x[1], @x[1], #8 + veor @t[5], @t[5], @x[4] + veor @x[0], @x[0], @t[0] + veor @t[6], @t[6], @x[5] + veor @x[1], @x[1], @t[1] + vext.8 @t[0], @x[4], @x[4], #8 + veor @t[4], @t[4], @x[3] + vext.8 @t[1], @x[5], @x[5], #8 + veor @t[7], @t[7], @x[6] + vext.8 @x[4], @x[3], @x[3], #8 + veor @t[3], @t[3], @x[2] + vext.8 @x[5], @x[7], @x[7], #8 + veor @t[4], @t[4], @x[7] + vext.8 @x[3], @x[6], @x[6], #8 + veor @t[3], @t[3], @x[7] + vext.8 @x[6], @x[2], @x[2], #8 + veor @x[7], @t[1], @t[5] +___ +$code.=<<___ if (!$inv); + veor @x[2], @t[0], @t[4] + veor @x[4], @x[4], @t[3] + veor @x[5], @x[5], @t[7] + veor @x[3], @x[3], @t[6] + @ vmov @x[2], @t[0] + veor @x[6], @x[6], @t[2] + @ vmov @x[7], @t[1] +___ +$code.=<<___ if ($inv); + veor @t[3], @t[3], @x[4] + veor @x[5], @x[5], @t[7] + veor @x[2], @x[3], @t[6] + veor @x[3], @t[0], @t[4] + veor @x[4], @x[6], @t[2] + vmov @x[6], @t[3] + @ vmov @x[7], @t[1] +___ +} + +sub InvMixColumns_orig { +my @x=@_[0..7]; +my @t=@_[8..15]; + +$code.=<<___; + @ multiplication by 0x0e + vext.8 @t[7], @x[7], @x[7], #12 + vmov @t[2], @x[2] + veor @x[2], @x[2], @x[5] @ 2 5 + veor @x[7], @x[7], @x[5] @ 7 5 + vext.8 @t[0], @x[0], @x[0], #12 + vmov @t[5], @x[5] + veor @x[5], @x[5], @x[0] @ 5 0 [1] + veor @x[0], @x[0], @x[1] @ 0 1 + vext.8 @t[1], @x[1], @x[1], #12 + veor @x[1], @x[1], @x[2] @ 1 25 + veor @x[0], @x[0], @x[6] @ 01 6 [2] + vext.8 @t[3], @x[3], @x[3], #12 + veor @x[1], @x[1], @x[3] @ 125 3 [4] + veor @x[2], @x[2], @x[0] @ 25 016 [3] + veor @x[3], @x[3], @x[7] @ 3 75 + veor @x[7], @x[7], @x[6] @ 75 6 [0] + vext.8 @t[6], @x[6], @x[6], #12 + vmov @t[4], @x[4] + veor @x[6], @x[6], @x[4] @ 6 4 + veor @x[4], @x[4], @x[3] @ 4 375 [6] + veor @x[3], @x[3], @x[7] @ 375 756=36 + veor @x[6], @x[6], @t[5] @ 64 5 [7] + veor @x[3], @x[3], @t[2] @ 36 2 + vext.8 @t[5], @t[5], @t[5], #12 + veor @x[3], @x[3], @t[4] @ 362 4 [5] +___ + my @y = @x[7,5,0,2,1,3,4,6]; +$code.=<<___; + @ multiplication by 0x0b + veor @y[1], @y[1], @y[0] + veor @y[0], @y[0], @t[0] + vext.8 @t[2], @t[2], @t[2], #12 + veor @y[1], @y[1], @t[1] + veor @y[0], @y[0], @t[5] + vext.8 @t[4], @t[4], @t[4], #12 + veor @y[1], @y[1], @t[6] + veor @y[0], @y[0], @t[7] + veor @t[7], @t[7], @t[6] @ clobber t[7] + + veor @y[3], @y[3], @t[0] + veor @y[1], @y[1], @y[0] + vext.8 @t[0], @t[0], @t[0], #12 + veor @y[2], @y[2], @t[1] + veor @y[4], @y[4], @t[1] + vext.8 @t[1], @t[1], @t[1], #12 + veor @y[2], @y[2], @t[2] + veor @y[3], @y[3], @t[2] + veor @y[5], @y[5], @t[2] + veor @y[2], @y[2], @t[7] + vext.8 @t[2], @t[2], @t[2], #12 + veor @y[3], @y[3], @t[3] + veor @y[6], @y[6], @t[3] + veor @y[4], @y[4], @t[3] + veor @y[7], @y[7], @t[4] + vext.8 @t[3], @t[3], @t[3], #12 + veor @y[5], @y[5], @t[4] + veor @y[7], @y[7], @t[7] + veor @t[7], @t[7], @t[5] @ clobber t[7] even more + veor @y[3], @y[3], @t[5] + veor @y[4], @y[4], @t[4] + + veor @y[5], @y[5], @t[7] + vext.8 @t[4], @t[4], @t[4], #12 + veor @y[6], @y[6], @t[7] + veor @y[4], @y[4], @t[7] + + veor @t[7], @t[7], @t[5] + vext.8 @t[5], @t[5], @t[5], #12 + + @ multiplication by 0x0d + veor @y[4], @y[4], @y[7] + veor @t[7], @t[7], @t[6] @ restore t[7] + veor @y[7], @y[7], @t[4] + vext.8 @t[6], @t[6], @t[6], #12 + veor @y[2], @y[2], @t[0] + veor @y[7], @y[7], @t[5] + vext.8 @t[7], @t[7], @t[7], #12 + veor @y[2], @y[2], @t[2] + + veor @y[3], @y[3], @y[1] + veor @y[1], @y[1], @t[1] + veor @y[0], @y[0], @t[0] + veor @y[3], @y[3], @t[0] + veor @y[1], @y[1], @t[5] + veor @y[0], @y[0], @t[5] + vext.8 @t[0], @t[0], @t[0], #12 + veor @y[1], @y[1], @t[7] + veor @y[0], @y[0], @t[6] + veor @y[3], @y[3], @y[1] + veor @y[4], @y[4], @t[1] + vext.8 @t[1], @t[1], @t[1], #12 + + veor @y[7], @y[7], @t[7] + veor @y[4], @y[4], @t[2] + veor @y[5], @y[5], @t[2] + veor @y[2], @y[2], @t[6] + veor @t[6], @t[6], @t[3] @ clobber t[6] + vext.8 @t[2], @t[2], @t[2], #12 + veor @y[4], @y[4], @y[7] + veor @y[3], @y[3], @t[6] + + veor @y[6], @y[6], @t[6] + veor @y[5], @y[5], @t[5] + vext.8 @t[5], @t[5], @t[5], #12 + veor @y[6], @y[6], @t[4] + vext.8 @t[4], @t[4], @t[4], #12 + veor @y[5], @y[5], @t[6] + veor @y[6], @y[6], @t[7] + vext.8 @t[7], @t[7], @t[7], #12 + veor @t[6], @t[6], @t[3] @ restore t[6] + vext.8 @t[3], @t[3], @t[3], #12 + + @ multiplication by 0x09 + veor @y[4], @y[4], @y[1] + veor @t[1], @t[1], @y[1] @ t[1]=y[1] + veor @t[0], @t[0], @t[5] @ clobber t[0] + vext.8 @t[6], @t[6], @t[6], #12 + veor @t[1], @t[1], @t[5] + veor @y[3], @y[3], @t[0] + veor @t[0], @t[0], @y[0] @ t[0]=y[0] + veor @t[1], @t[1], @t[6] + veor @t[6], @t[6], @t[7] @ clobber t[6] + veor @y[4], @y[4], @t[1] + veor @y[7], @y[7], @t[4] + veor @y[6], @y[6], @t[3] + veor @y[5], @y[5], @t[2] + veor @t[4], @t[4], @y[4] @ t[4]=y[4] + veor @t[3], @t[3], @y[3] @ t[3]=y[3] + veor @t[5], @t[5], @y[5] @ t[5]=y[5] + veor @t[2], @t[2], @y[2] @ t[2]=y[2] + veor @t[3], @t[3], @t[7] + veor @XMM[5], @t[5], @t[6] + veor @XMM[6], @t[6], @y[6] @ t[6]=y[6] + veor @XMM[2], @t[2], @t[6] + veor @XMM[7], @t[7], @y[7] @ t[7]=y[7] + + vmov @XMM[0], @t[0] + vmov @XMM[1], @t[1] + @ vmov @XMM[2], @t[2] + vmov @XMM[3], @t[3] + vmov @XMM[4], @t[4] + @ vmov @XMM[5], @t[5] + @ vmov @XMM[6], @t[6] + @ vmov @XMM[7], @t[7] +___ +} + +sub InvMixColumns { +my @x=@_[0..7]; +my @t=@_[8..15]; + +# Thanks to Jussi Kivilinna for providing pointer to +# +# | 0e 0b 0d 09 | | 02 03 01 01 | | 05 00 04 00 | +# | 09 0e 0b 0d | = | 01 02 03 01 | x | 00 05 00 04 | +# | 0d 09 0e 0b | | 01 01 02 03 | | 04 00 05 00 | +# | 0b 0d 09 0e | | 03 01 01 02 | | 00 04 00 05 | + +$code.=<<___; + @ multiplication by 0x05-0x00-0x04-0x00 + vext.8 @t[0], @x[0], @x[0], #8 + vext.8 @t[6], @x[6], @x[6], #8 + vext.8 @t[7], @x[7], @x[7], #8 + veor @t[0], @t[0], @x[0] + vext.8 @t[1], @x[1], @x[1], #8 + veor @t[6], @t[6], @x[6] + vext.8 @t[2], @x[2], @x[2], #8 + veor @t[7], @t[7], @x[7] + vext.8 @t[3], @x[3], @x[3], #8 + veor @t[1], @t[1], @x[1] + vext.8 @t[4], @x[4], @x[4], #8 + veor @t[2], @t[2], @x[2] + vext.8 @t[5], @x[5], @x[5], #8 + veor @t[3], @t[3], @x[3] + veor @t[4], @t[4], @x[4] + veor @t[5], @t[5], @x[5] + + veor @x[0], @x[0], @t[6] + veor @x[1], @x[1], @t[6] + veor @x[2], @x[2], @t[0] + veor @x[4], @x[4], @t[2] + veor @x[3], @x[3], @t[1] + veor @x[1], @x[1], @t[7] + veor @x[2], @x[2], @t[7] + veor @x[4], @x[4], @t[6] + veor @x[5], @x[5], @t[3] + veor @x[3], @x[3], @t[6] + veor @x[6], @x[6], @t[4] + veor @x[4], @x[4], @t[7] + veor @x[5], @x[5], @t[7] + veor @x[7], @x[7], @t[5] +___ + &MixColumns (@x,@t,1); # flipped 2<->3 and 4<->6 +} + +sub swapmove { +my ($a,$b,$n,$mask,$t)=@_; +$code.=<<___; + vshr.u64 $t, $b, #$n + veor $t, $t, $a + vand $t, $t, $mask + veor $a, $a, $t + vshl.u64 $t, $t, #$n + veor $b, $b, $t +___ +} +sub swapmove2x { +my ($a0,$b0,$a1,$b1,$n,$mask,$t0,$t1)=@_; +$code.=<<___; + vshr.u64 $t0, $b0, #$n + vshr.u64 $t1, $b1, #$n + veor $t0, $t0, $a0 + veor $t1, $t1, $a1 + vand $t0, $t0, $mask + vand $t1, $t1, $mask + veor $a0, $a0, $t0 + vshl.u64 $t0, $t0, #$n + veor $a1, $a1, $t1 + vshl.u64 $t1, $t1, #$n + veor $b0, $b0, $t0 + veor $b1, $b1, $t1 +___ +} + +sub bitslice { +my @x=reverse(@_[0..7]); +my ($t0,$t1,$t2,$t3)=@_[8..11]; +$code.=<<___; + vmov.i8 $t0,#0x55 @ compose .LBS0 + vmov.i8 $t1,#0x33 @ compose .LBS1 +___ + &swapmove2x(@x[0,1,2,3],1,$t0,$t2,$t3); + &swapmove2x(@x[4,5,6,7],1,$t0,$t2,$t3); +$code.=<<___; + vmov.i8 $t0,#0x0f @ compose .LBS2 +___ + &swapmove2x(@x[0,2,1,3],2,$t1,$t2,$t3); + &swapmove2x(@x[4,6,5,7],2,$t1,$t2,$t3); + + &swapmove2x(@x[0,4,1,5],4,$t0,$t2,$t3); + &swapmove2x(@x[2,6,3,7],4,$t0,$t2,$t3); +} + +$code.=<<___; +#if defined(__arm__) +#ifndef __KERNEL__ +# include "arm_arch.h" + +# define VFP_ABI_PUSH vstmdb sp!,{d8-d15} +# define VFP_ABI_POP vldmia sp!,{d8-d15} +# define VFP_ABI_FRAME 0x40 +#else +# define VFP_ABI_PUSH +# define VFP_ABI_POP +# define VFP_ABI_FRAME 0 +# define BSAES_ASM_EXTENDED_KEY +# define XTS_CHAIN_TWEAK +# define __ARM_ARCH__ __LINUX_ARM_ARCH__ +#endif + +#ifdef __thumb__ +# define adrl adr +#endif + +#if __ARM_ARCH__>=7 +.text +.syntax unified @ ARMv7-capable assembler is expected to handle this +#ifdef __thumb2__ +.thumb +#else +.code 32 +#endif + +.fpu neon + +.type _bsaes_decrypt8,%function +.align 4 +_bsaes_decrypt8: + adr $const,_bsaes_decrypt8 + vldmia $key!, {@XMM[9]} @ round 0 key + add $const,$const,#.LM0ISR-_bsaes_decrypt8 + + vldmia $const!, {@XMM[8]} @ .LM0ISR + veor @XMM[10], @XMM[0], @XMM[9] @ xor with round0 key + veor @XMM[11], @XMM[1], @XMM[9] + vtbl.8 `&Dlo(@XMM[0])`, {@XMM[10]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[0])`, {@XMM[10]}, `&Dhi(@XMM[8])` + veor @XMM[12], @XMM[2], @XMM[9] + vtbl.8 `&Dlo(@XMM[1])`, {@XMM[11]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[1])`, {@XMM[11]}, `&Dhi(@XMM[8])` + veor @XMM[13], @XMM[3], @XMM[9] + vtbl.8 `&Dlo(@XMM[2])`, {@XMM[12]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[2])`, {@XMM[12]}, `&Dhi(@XMM[8])` + veor @XMM[14], @XMM[4], @XMM[9] + vtbl.8 `&Dlo(@XMM[3])`, {@XMM[13]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[3])`, {@XMM[13]}, `&Dhi(@XMM[8])` + veor @XMM[15], @XMM[5], @XMM[9] + vtbl.8 `&Dlo(@XMM[4])`, {@XMM[14]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[4])`, {@XMM[14]}, `&Dhi(@XMM[8])` + veor @XMM[10], @XMM[6], @XMM[9] + vtbl.8 `&Dlo(@XMM[5])`, {@XMM[15]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[5])`, {@XMM[15]}, `&Dhi(@XMM[8])` + veor @XMM[11], @XMM[7], @XMM[9] + vtbl.8 `&Dlo(@XMM[6])`, {@XMM[10]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[6])`, {@XMM[10]}, `&Dhi(@XMM[8])` + vtbl.8 `&Dlo(@XMM[7])`, {@XMM[11]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[7])`, {@XMM[11]}, `&Dhi(@XMM[8])` +___ + &bitslice (@XMM[0..7, 8..11]); +$code.=<<___; + sub $rounds,$rounds,#1 + b .Ldec_sbox +.align 4 +.Ldec_loop: +___ + &ShiftRows (@XMM[0..7, 8..12]); +$code.=".Ldec_sbox:\n"; + &InvSbox (@XMM[0..7, 8..15]); +$code.=<<___; + subs $rounds,$rounds,#1 + bcc .Ldec_done +___ + &InvMixColumns (@XMM[0,1,6,4,2,7,3,5, 8..15]); +$code.=<<___; + vldmia $const, {@XMM[12]} @ .LISR + ite eq @ Thumb2 thing, sanity check in ARM + addeq $const,$const,#0x10 + bne .Ldec_loop + vldmia $const, {@XMM[12]} @ .LISRM0 + b .Ldec_loop +.align 4 +.Ldec_done: +___ + &bitslice (@XMM[0,1,6,4,2,7,3,5, 8..11]); +$code.=<<___; + vldmia $key, {@XMM[8]} @ last round key + veor @XMM[6], @XMM[6], @XMM[8] + veor @XMM[4], @XMM[4], @XMM[8] + veor @XMM[2], @XMM[2], @XMM[8] + veor @XMM[7], @XMM[7], @XMM[8] + veor @XMM[3], @XMM[3], @XMM[8] + veor @XMM[5], @XMM[5], @XMM[8] + veor @XMM[0], @XMM[0], @XMM[8] + veor @XMM[1], @XMM[1], @XMM[8] + bx lr +.size _bsaes_decrypt8,.-_bsaes_decrypt8 + +.type _bsaes_const,%object +.align 6 +_bsaes_const: +.LM0ISR: @ InvShiftRows constants + .quad 0x0a0e0206070b0f03, 0x0004080c0d010509 +.LISR: + .quad 0x0504070602010003, 0x0f0e0d0c080b0a09 +.LISRM0: + .quad 0x01040b0e0205080f, 0x0306090c00070a0d +.LM0SR: @ ShiftRows constants + .quad 0x0a0e02060f03070b, 0x0004080c05090d01 +.LSR: + .quad 0x0504070600030201, 0x0f0e0d0c0a09080b +.LSRM0: + .quad 0x0304090e00050a0f, 0x01060b0c0207080d +.LM0: + .quad 0x02060a0e03070b0f, 0x0004080c0105090d +.LREVM0SR: + .quad 0x090d01050c000408, 0x03070b0f060a0e02 +.asciz "Bit-sliced AES for NEON, CRYPTOGAMS by <appro\@openssl.org>" +.align 6 +.size _bsaes_const,.-_bsaes_const + +.type _bsaes_encrypt8,%function +.align 4 +_bsaes_encrypt8: + adr $const,_bsaes_encrypt8 + vldmia $key!, {@XMM[9]} @ round 0 key + sub $const,$const,#_bsaes_encrypt8-.LM0SR + + vldmia $const!, {@XMM[8]} @ .LM0SR +_bsaes_encrypt8_alt: + veor @XMM[10], @XMM[0], @XMM[9] @ xor with round0 key + veor @XMM[11], @XMM[1], @XMM[9] + vtbl.8 `&Dlo(@XMM[0])`, {@XMM[10]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[0])`, {@XMM[10]}, `&Dhi(@XMM[8])` + veor @XMM[12], @XMM[2], @XMM[9] + vtbl.8 `&Dlo(@XMM[1])`, {@XMM[11]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[1])`, {@XMM[11]}, `&Dhi(@XMM[8])` + veor @XMM[13], @XMM[3], @XMM[9] + vtbl.8 `&Dlo(@XMM[2])`, {@XMM[12]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[2])`, {@XMM[12]}, `&Dhi(@XMM[8])` + veor @XMM[14], @XMM[4], @XMM[9] + vtbl.8 `&Dlo(@XMM[3])`, {@XMM[13]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[3])`, {@XMM[13]}, `&Dhi(@XMM[8])` + veor @XMM[15], @XMM[5], @XMM[9] + vtbl.8 `&Dlo(@XMM[4])`, {@XMM[14]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[4])`, {@XMM[14]}, `&Dhi(@XMM[8])` + veor @XMM[10], @XMM[6], @XMM[9] + vtbl.8 `&Dlo(@XMM[5])`, {@XMM[15]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[5])`, {@XMM[15]}, `&Dhi(@XMM[8])` + veor @XMM[11], @XMM[7], @XMM[9] + vtbl.8 `&Dlo(@XMM[6])`, {@XMM[10]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[6])`, {@XMM[10]}, `&Dhi(@XMM[8])` + vtbl.8 `&Dlo(@XMM[7])`, {@XMM[11]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[7])`, {@XMM[11]}, `&Dhi(@XMM[8])` +_bsaes_encrypt8_bitslice: +___ + &bitslice (@XMM[0..7, 8..11]); +$code.=<<___; + sub $rounds,$rounds,#1 + b .Lenc_sbox +.align 4 +.Lenc_loop: +___ + &ShiftRows (@XMM[0..7, 8..12]); +$code.=".Lenc_sbox:\n"; + &Sbox (@XMM[0..7, 8..15]); +$code.=<<___; + subs $rounds,$rounds,#1 + bcc .Lenc_done +___ + &MixColumns (@XMM[0,1,4,6,3,7,2,5, 8..15]); +$code.=<<___; + vldmia $const, {@XMM[12]} @ .LSR + ite eq @ Thumb2 thing, samity check in ARM + addeq $const,$const,#0x10 + bne .Lenc_loop + vldmia $const, {@XMM[12]} @ .LSRM0 + b .Lenc_loop +.align 4 +.Lenc_done: +___ + # output in lsb > [t0, t1, t4, t6, t3, t7, t2, t5] < msb + &bitslice (@XMM[0,1,4,6,3,7,2,5, 8..11]); +$code.=<<___; + vldmia $key, {@XMM[8]} @ last round key + veor @XMM[4], @XMM[4], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[8] + veor @XMM[3], @XMM[3], @XMM[8] + veor @XMM[7], @XMM[7], @XMM[8] + veor @XMM[2], @XMM[2], @XMM[8] + veor @XMM[5], @XMM[5], @XMM[8] + veor @XMM[0], @XMM[0], @XMM[8] + veor @XMM[1], @XMM[1], @XMM[8] + bx lr +.size _bsaes_encrypt8,.-_bsaes_encrypt8 +___ +} +{ +my ($out,$inp,$rounds,$const)=("r12","r4","r5","r6"); + +sub bitslice_key { +my @x=reverse(@_[0..7]); +my ($bs0,$bs1,$bs2,$t2,$t3)=@_[8..12]; + + &swapmove (@x[0,1],1,$bs0,$t2,$t3); +$code.=<<___; + @ &swapmove(@x[2,3],1,$t0,$t2,$t3); + vmov @x[2], @x[0] + vmov @x[3], @x[1] +___ + #&swapmove2x(@x[4,5,6,7],1,$t0,$t2,$t3); + + &swapmove2x (@x[0,2,1,3],2,$bs1,$t2,$t3); +$code.=<<___; + @ &swapmove2x(@x[4,6,5,7],2,$t1,$t2,$t3); + vmov @x[4], @x[0] + vmov @x[6], @x[2] + vmov @x[5], @x[1] + vmov @x[7], @x[3] +___ + &swapmove2x (@x[0,4,1,5],4,$bs2,$t2,$t3); + &swapmove2x (@x[2,6,3,7],4,$bs2,$t2,$t3); +} + +$code.=<<___; +.type _bsaes_key_convert,%function +.align 4 +_bsaes_key_convert: + adr $const,_bsaes_key_convert + vld1.8 {@XMM[7]}, [$inp]! @ load round 0 key + sub $const,$const,#_bsaes_key_convert-.LM0 + vld1.8 {@XMM[15]}, [$inp]! @ load round 1 key + + vmov.i8 @XMM[8], #0x01 @ bit masks + vmov.i8 @XMM[9], #0x02 + vmov.i8 @XMM[10], #0x04 + vmov.i8 @XMM[11], #0x08 + vmov.i8 @XMM[12], #0x10 + vmov.i8 @XMM[13], #0x20 + vldmia $const, {@XMM[14]} @ .LM0 + +#ifdef __ARMEL__ + vrev32.8 @XMM[7], @XMM[7] + vrev32.8 @XMM[15], @XMM[15] +#endif + sub $rounds,$rounds,#1 + vstmia $out!, {@XMM[7]} @ save round 0 key + b .Lkey_loop + +.align 4 +.Lkey_loop: + vtbl.8 `&Dlo(@XMM[7])`,{@XMM[15]},`&Dlo(@XMM[14])` + vtbl.8 `&Dhi(@XMM[7])`,{@XMM[15]},`&Dhi(@XMM[14])` + vmov.i8 @XMM[6], #0x40 + vmov.i8 @XMM[15], #0x80 + + vtst.8 @XMM[0], @XMM[7], @XMM[8] + vtst.8 @XMM[1], @XMM[7], @XMM[9] + vtst.8 @XMM[2], @XMM[7], @XMM[10] + vtst.8 @XMM[3], @XMM[7], @XMM[11] + vtst.8 @XMM[4], @XMM[7], @XMM[12] + vtst.8 @XMM[5], @XMM[7], @XMM[13] + vtst.8 @XMM[6], @XMM[7], @XMM[6] + vtst.8 @XMM[7], @XMM[7], @XMM[15] + vld1.8 {@XMM[15]}, [$inp]! @ load next round key + vmvn @XMM[0], @XMM[0] @ "pnot" + vmvn @XMM[1], @XMM[1] + vmvn @XMM[5], @XMM[5] + vmvn @XMM[6], @XMM[6] +#ifdef __ARMEL__ + vrev32.8 @XMM[15], @XMM[15] +#endif + subs $rounds,$rounds,#1 + vstmia $out!,{@XMM[0]-@XMM[7]} @ write bit-sliced round key + bne .Lkey_loop + + vmov.i8 @XMM[7],#0x63 @ compose .L63 + @ don't save last round key + bx lr +.size _bsaes_key_convert,.-_bsaes_key_convert +___ +} + +if (0) { # following four functions are unsupported interface + # used for benchmarking... +$code.=<<___; +.globl bsaes_enc_key_convert +.type bsaes_enc_key_convert,%function +.align 4 +bsaes_enc_key_convert: + stmdb sp!,{r4-r6,lr} + vstmdb sp!,{d8-d15} @ ABI specification says so + + ldr r5,[$inp,#240] @ pass rounds + mov r4,$inp @ pass key + mov r12,$out @ pass key schedule + bl _bsaes_key_convert + veor @XMM[7],@XMM[7],@XMM[15] @ fix up last round key + vstmia r12, {@XMM[7]} @ save last round key + + vldmia sp!,{d8-d15} + ldmia sp!,{r4-r6,pc} +.size bsaes_enc_key_convert,.-bsaes_enc_key_convert + +.globl bsaes_encrypt_128 +.type bsaes_encrypt_128,%function +.align 4 +bsaes_encrypt_128: + stmdb sp!,{r4-r6,lr} + vstmdb sp!,{d8-d15} @ ABI specification says so +.Lenc128_loop: + vld1.8 {@XMM[0]-@XMM[1]}, [$inp]! @ load input + vld1.8 {@XMM[2]-@XMM[3]}, [$inp]! + mov r4,$key @ pass the key + vld1.8 {@XMM[4]-@XMM[5]}, [$inp]! + mov r5,#10 @ pass rounds + vld1.8 {@XMM[6]-@XMM[7]}, [$inp]! + + bl _bsaes_encrypt8 + + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[3]}, [$out]! + vst1.8 {@XMM[7]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + subs $len,$len,#0x80 + vst1.8 {@XMM[5]}, [$out]! + bhi .Lenc128_loop + + vldmia sp!,{d8-d15} + ldmia sp!,{r4-r6,pc} +.size bsaes_encrypt_128,.-bsaes_encrypt_128 + +.globl bsaes_dec_key_convert +.type bsaes_dec_key_convert,%function +.align 4 +bsaes_dec_key_convert: + stmdb sp!,{r4-r6,lr} + vstmdb sp!,{d8-d15} @ ABI specification says so + + ldr r5,[$inp,#240] @ pass rounds + mov r4,$inp @ pass key + mov r12,$out @ pass key schedule + bl _bsaes_key_convert + vldmia $out, {@XMM[6]} + vstmia r12, {@XMM[15]} @ save last round key + veor @XMM[7], @XMM[7], @XMM[6] @ fix up round 0 key + vstmia $out, {@XMM[7]} + + vldmia sp!,{d8-d15} + ldmia sp!,{r4-r6,pc} +.size bsaes_dec_key_convert,.-bsaes_dec_key_convert + +.globl bsaes_decrypt_128 +.type bsaes_decrypt_128,%function +.align 4 +bsaes_decrypt_128: + stmdb sp!,{r4-r6,lr} + vstmdb sp!,{d8-d15} @ ABI specification says so +.Ldec128_loop: + vld1.8 {@XMM[0]-@XMM[1]}, [$inp]! @ load input + vld1.8 {@XMM[2]-@XMM[3]}, [$inp]! + mov r4,$key @ pass the key + vld1.8 {@XMM[4]-@XMM[5]}, [$inp]! + mov r5,#10 @ pass rounds + vld1.8 {@XMM[6]-@XMM[7]}, [$inp]! + + bl _bsaes_decrypt8 + + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + vst1.8 {@XMM[7]}, [$out]! + vst1.8 {@XMM[3]}, [$out]! + subs $len,$len,#0x80 + vst1.8 {@XMM[5]}, [$out]! + bhi .Ldec128_loop + + vldmia sp!,{d8-d15} + ldmia sp!,{r4-r6,pc} +.size bsaes_decrypt_128,.-bsaes_decrypt_128 +___ +} +{ +my ($inp,$out,$len,$key, $ivp,$fp,$rounds)=map("r$_",(0..3,8..10)); +my ($keysched)=("sp"); + +$code.=<<___; +.extern AES_cbc_encrypt +.extern AES_decrypt + +.global bsaes_cbc_encrypt +.type bsaes_cbc_encrypt,%function +.align 5 +bsaes_cbc_encrypt: +#ifndef __KERNEL__ + cmp $len, #128 +#ifndef __thumb__ + blo AES_cbc_encrypt +#else + bhs 1f + b AES_cbc_encrypt +1: +#endif +#endif + + @ it is up to the caller to make sure we are called with enc == 0 + + mov ip, sp + stmdb sp!, {r4-r10, lr} + VFP_ABI_PUSH + ldr $ivp, [ip] @ IV is 1st arg on the stack + mov $len, $len, lsr#4 @ len in 16 byte blocks + sub sp, #0x10 @ scratch space to carry over the IV + mov $fp, sp @ save sp + + ldr $rounds, [$key, #240] @ get # of rounds +#ifndef BSAES_ASM_EXTENDED_KEY + @ allocate the key schedule on the stack + sub r12, sp, $rounds, lsl#7 @ 128 bytes per inner round key + add r12, #`128-32` @ sifze of bit-slices key schedule + + @ populate the key schedule + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + mov sp, r12 @ sp is $keysched + bl _bsaes_key_convert + vldmia $keysched, {@XMM[6]} + vstmia r12, {@XMM[15]} @ save last round key + veor @XMM[7], @XMM[7], @XMM[6] @ fix up round 0 key + vstmia $keysched, {@XMM[7]} +#else + ldr r12, [$key, #244] + eors r12, #1 + beq 0f + + @ populate the key schedule + str r12, [$key, #244] + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + add r12, $key, #248 @ pass key schedule + bl _bsaes_key_convert + add r4, $key, #248 + vldmia r4, {@XMM[6]} + vstmia r12, {@XMM[15]} @ save last round key + veor @XMM[7], @XMM[7], @XMM[6] @ fix up round 0 key + vstmia r4, {@XMM[7]} + +.align 2 +0: +#endif + + vld1.8 {@XMM[15]}, [$ivp] @ load IV + b .Lcbc_dec_loop + +.align 4 +.Lcbc_dec_loop: + subs $len, $len, #0x8 + bmi .Lcbc_dec_loop_finish + + vld1.8 {@XMM[0]-@XMM[1]}, [$inp]! @ load input + vld1.8 {@XMM[2]-@XMM[3]}, [$inp]! +#ifndef BSAES_ASM_EXTENDED_KEY + mov r4, $keysched @ pass the key +#else + add r4, $key, #248 +#endif + vld1.8 {@XMM[4]-@XMM[5]}, [$inp]! + mov r5, $rounds + vld1.8 {@XMM[6]-@XMM[7]}, [$inp] + sub $inp, $inp, #0x60 + vstmia $fp, {@XMM[15]} @ put aside IV + + bl _bsaes_decrypt8 + + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[10]-@XMM[11]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vld1.8 {@XMM[12]-@XMM[13]}, [$inp]! + veor @XMM[4], @XMM[4], @XMM[10] + veor @XMM[2], @XMM[2], @XMM[11] + vld1.8 {@XMM[14]-@XMM[15]}, [$inp]! + veor @XMM[7], @XMM[7], @XMM[12] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + veor @XMM[3], @XMM[3], @XMM[13] + vst1.8 {@XMM[6]}, [$out]! + veor @XMM[5], @XMM[5], @XMM[14] + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + vst1.8 {@XMM[7]}, [$out]! + vst1.8 {@XMM[3]}, [$out]! + vst1.8 {@XMM[5]}, [$out]! + + b .Lcbc_dec_loop + +.Lcbc_dec_loop_finish: + adds $len, $len, #8 + beq .Lcbc_dec_done + + vld1.8 {@XMM[0]}, [$inp]! @ load input + cmp $len, #2 + blo .Lcbc_dec_one + vld1.8 {@XMM[1]}, [$inp]! +#ifndef BSAES_ASM_EXTENDED_KEY + mov r4, $keysched @ pass the key +#else + add r4, $key, #248 +#endif + mov r5, $rounds + vstmia $fp, {@XMM[15]} @ put aside IV + beq .Lcbc_dec_two + vld1.8 {@XMM[2]}, [$inp]! + cmp $len, #4 + blo .Lcbc_dec_three + vld1.8 {@XMM[3]}, [$inp]! + beq .Lcbc_dec_four + vld1.8 {@XMM[4]}, [$inp]! + cmp $len, #6 + blo .Lcbc_dec_five + vld1.8 {@XMM[5]}, [$inp]! + beq .Lcbc_dec_six + vld1.8 {@XMM[6]}, [$inp]! + sub $inp, $inp, #0x70 + + bl _bsaes_decrypt8 + + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[10]-@XMM[11]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vld1.8 {@XMM[12]-@XMM[13]}, [$inp]! + veor @XMM[4], @XMM[4], @XMM[10] + veor @XMM[2], @XMM[2], @XMM[11] + vld1.8 {@XMM[15]}, [$inp]! + veor @XMM[7], @XMM[7], @XMM[12] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + veor @XMM[3], @XMM[3], @XMM[13] + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + vst1.8 {@XMM[7]}, [$out]! + vst1.8 {@XMM[3]}, [$out]! + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_six: + sub $inp, $inp, #0x60 + bl _bsaes_decrypt8 + vldmia $fp,{@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[10]-@XMM[11]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vld1.8 {@XMM[12]}, [$inp]! + veor @XMM[4], @XMM[4], @XMM[10] + veor @XMM[2], @XMM[2], @XMM[11] + vld1.8 {@XMM[15]}, [$inp]! + veor @XMM[7], @XMM[7], @XMM[12] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + vst1.8 {@XMM[7]}, [$out]! + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_five: + sub $inp, $inp, #0x50 + bl _bsaes_decrypt8 + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[10]-@XMM[11]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vld1.8 {@XMM[15]}, [$inp]! + veor @XMM[4], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + veor @XMM[2], @XMM[2], @XMM[11] + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_four: + sub $inp, $inp, #0x40 + bl _bsaes_decrypt8 + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[10]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vld1.8 {@XMM[15]}, [$inp]! + veor @XMM[4], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[4]}, [$out]! + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_three: + sub $inp, $inp, #0x30 + bl _bsaes_decrypt8 + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[15]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + vst1.8 {@XMM[6]}, [$out]! + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_two: + sub $inp, $inp, #0x20 + bl _bsaes_decrypt8 + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[15]}, [$inp]! @ reload input + veor @XMM[1], @XMM[1], @XMM[8] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_one: + sub $inp, $inp, #0x10 + mov $rounds, $out @ save original out pointer + mov $out, $fp @ use the iv scratch space as out buffer + mov r2, $key + vmov @XMM[4],@XMM[15] @ just in case ensure that IV + vmov @XMM[5],@XMM[0] @ and input are preserved + bl AES_decrypt + vld1.8 {@XMM[0]}, [$fp,:64] @ load result + veor @XMM[0], @XMM[0], @XMM[4] @ ^= IV + vmov @XMM[15], @XMM[5] @ @XMM[5] holds input + vst1.8 {@XMM[0]}, [$rounds] @ write output + +.Lcbc_dec_done: +#ifndef BSAES_ASM_EXTENDED_KEY + vmov.i32 q0, #0 + vmov.i32 q1, #0 +.Lcbc_dec_bzero: @ wipe key schedule [if any] + vstmia $keysched!, {q0-q1} + cmp $keysched, $fp + bne .Lcbc_dec_bzero +#endif + + mov sp, $fp + add sp, #0x10 @ add sp,$fp,#0x10 is no good for thumb + vst1.8 {@XMM[15]}, [$ivp] @ return IV + VFP_ABI_POP + ldmia sp!, {r4-r10, pc} +.size bsaes_cbc_encrypt,.-bsaes_cbc_encrypt +___ +} +{ +my ($inp,$out,$len,$key, $ctr,$fp,$rounds)=(map("r$_",(0..3,8..10))); +my $const = "r6"; # shared with _bsaes_encrypt8_alt +my $keysched = "sp"; + +$code.=<<___; +.extern AES_encrypt +.global bsaes_ctr32_encrypt_blocks +.type bsaes_ctr32_encrypt_blocks,%function +.align 5 +bsaes_ctr32_encrypt_blocks: + cmp $len, #8 @ use plain AES for + blo .Lctr_enc_short @ small sizes + + mov ip, sp + stmdb sp!, {r4-r10, lr} + VFP_ABI_PUSH + ldr $ctr, [ip] @ ctr is 1st arg on the stack + sub sp, sp, #0x10 @ scratch space to carry over the ctr + mov $fp, sp @ save sp + + ldr $rounds, [$key, #240] @ get # of rounds +#ifndef BSAES_ASM_EXTENDED_KEY + @ allocate the key schedule on the stack + sub r12, sp, $rounds, lsl#7 @ 128 bytes per inner round key + add r12, #`128-32` @ size of bit-sliced key schedule + + @ populate the key schedule + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + mov sp, r12 @ sp is $keysched + bl _bsaes_key_convert + veor @XMM[7],@XMM[7],@XMM[15] @ fix up last round key + vstmia r12, {@XMM[7]} @ save last round key + + vld1.8 {@XMM[0]}, [$ctr] @ load counter + add $ctr, $const, #.LREVM0SR-.LM0 @ borrow $ctr + vldmia $keysched, {@XMM[4]} @ load round0 key +#else + ldr r12, [$key, #244] + eors r12, #1 + beq 0f + + @ populate the key schedule + str r12, [$key, #244] + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + add r12, $key, #248 @ pass key schedule + bl _bsaes_key_convert + veor @XMM[7],@XMM[7],@XMM[15] @ fix up last round key + vstmia r12, {@XMM[7]} @ save last round key + +.align 2 +0: add r12, $key, #248 + vld1.8 {@XMM[0]}, [$ctr] @ load counter + adrl $ctr, .LREVM0SR @ borrow $ctr + vldmia r12, {@XMM[4]} @ load round0 key + sub sp, #0x10 @ place for adjusted round0 key +#endif + + vmov.i32 @XMM[8],#1 @ compose 1<<96 + veor @XMM[9],@XMM[9],@XMM[9] + vrev32.8 @XMM[0],@XMM[0] + vext.8 @XMM[8],@XMM[9],@XMM[8],#4 + vrev32.8 @XMM[4],@XMM[4] + vadd.u32 @XMM[9],@XMM[8],@XMM[8] @ compose 2<<96 + vstmia $keysched, {@XMM[4]} @ save adjusted round0 key + b .Lctr_enc_loop + +.align 4 +.Lctr_enc_loop: + vadd.u32 @XMM[10], @XMM[8], @XMM[9] @ compose 3<<96 + vadd.u32 @XMM[1], @XMM[0], @XMM[8] @ +1 + vadd.u32 @XMM[2], @XMM[0], @XMM[9] @ +2 + vadd.u32 @XMM[3], @XMM[0], @XMM[10] @ +3 + vadd.u32 @XMM[4], @XMM[1], @XMM[10] + vadd.u32 @XMM[5], @XMM[2], @XMM[10] + vadd.u32 @XMM[6], @XMM[3], @XMM[10] + vadd.u32 @XMM[7], @XMM[4], @XMM[10] + vadd.u32 @XMM[10], @XMM[5], @XMM[10] @ next counter + + @ Borrow prologue from _bsaes_encrypt8 to use the opportunity + @ to flip byte order in 32-bit counter + + vldmia $keysched, {@XMM[9]} @ load round0 key +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, $keysched, #0x10 @ pass next round key +#else + add r4, $key, #`248+16` +#endif + vldmia $ctr, {@XMM[8]} @ .LREVM0SR + mov r5, $rounds @ pass rounds + vstmia $fp, {@XMM[10]} @ save next counter + sub $const, $ctr, #.LREVM0SR-.LSR @ pass constants + + bl _bsaes_encrypt8_alt + + subs $len, $len, #8 + blo .Lctr_enc_loop_done + + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ load input + vld1.8 {@XMM[10]-@XMM[11]}, [$inp]! + veor @XMM[0], @XMM[8] + veor @XMM[1], @XMM[9] + vld1.8 {@XMM[12]-@XMM[13]}, [$inp]! + veor @XMM[4], @XMM[10] + veor @XMM[6], @XMM[11] + vld1.8 {@XMM[14]-@XMM[15]}, [$inp]! + veor @XMM[3], @XMM[12] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + veor @XMM[7], @XMM[13] + veor @XMM[2], @XMM[14] + vst1.8 {@XMM[4]}, [$out]! + veor @XMM[5], @XMM[15] + vst1.8 {@XMM[6]}, [$out]! + vmov.i32 @XMM[8], #1 @ compose 1<<96 + vst1.8 {@XMM[3]}, [$out]! + veor @XMM[9], @XMM[9], @XMM[9] + vst1.8 {@XMM[7]}, [$out]! + vext.8 @XMM[8], @XMM[9], @XMM[8], #4 + vst1.8 {@XMM[2]}, [$out]! + vadd.u32 @XMM[9],@XMM[8],@XMM[8] @ compose 2<<96 + vst1.8 {@XMM[5]}, [$out]! + vldmia $fp, {@XMM[0]} @ load counter + + bne .Lctr_enc_loop + b .Lctr_enc_done + +.align 4 +.Lctr_enc_loop_done: + add $len, $len, #8 + vld1.8 {@XMM[8]}, [$inp]! @ load input + veor @XMM[0], @XMM[8] + vst1.8 {@XMM[0]}, [$out]! @ write output + cmp $len, #2 + blo .Lctr_enc_done + vld1.8 {@XMM[9]}, [$inp]! + veor @XMM[1], @XMM[9] + vst1.8 {@XMM[1]}, [$out]! + beq .Lctr_enc_done + vld1.8 {@XMM[10]}, [$inp]! + veor @XMM[4], @XMM[10] + vst1.8 {@XMM[4]}, [$out]! + cmp $len, #4 + blo .Lctr_enc_done + vld1.8 {@XMM[11]}, [$inp]! + veor @XMM[6], @XMM[11] + vst1.8 {@XMM[6]}, [$out]! + beq .Lctr_enc_done + vld1.8 {@XMM[12]}, [$inp]! + veor @XMM[3], @XMM[12] + vst1.8 {@XMM[3]}, [$out]! + cmp $len, #6 + blo .Lctr_enc_done + vld1.8 {@XMM[13]}, [$inp]! + veor @XMM[7], @XMM[13] + vst1.8 {@XMM[7]}, [$out]! + beq .Lctr_enc_done + vld1.8 {@XMM[14]}, [$inp] + veor @XMM[2], @XMM[14] + vst1.8 {@XMM[2]}, [$out]! + +.Lctr_enc_done: + vmov.i32 q0, #0 + vmov.i32 q1, #0 +#ifndef BSAES_ASM_EXTENDED_KEY +.Lctr_enc_bzero: @ wipe key schedule [if any] + vstmia $keysched!, {q0-q1} + cmp $keysched, $fp + bne .Lctr_enc_bzero +#else + vstmia $keysched, {q0-q1} +#endif + + mov sp, $fp + add sp, #0x10 @ add sp,$fp,#0x10 is no good for thumb + VFP_ABI_POP + ldmia sp!, {r4-r10, pc} @ return + +.align 4 +.Lctr_enc_short: + ldr ip, [sp] @ ctr pointer is passed on stack + stmdb sp!, {r4-r8, lr} + + mov r4, $inp @ copy arguments + mov r5, $out + mov r6, $len + mov r7, $key + ldr r8, [ip, #12] @ load counter LSW + vld1.8 {@XMM[1]}, [ip] @ load whole counter value +#ifdef __ARMEL__ + rev r8, r8 +#endif + sub sp, sp, #0x10 + vst1.8 {@XMM[1]}, [sp,:64] @ copy counter value + sub sp, sp, #0x10 + +.Lctr_enc_short_loop: + add r0, sp, #0x10 @ input counter value + mov r1, sp @ output on the stack + mov r2, r7 @ key + + bl AES_encrypt + + vld1.8 {@XMM[0]}, [r4]! @ load input + vld1.8 {@XMM[1]}, [sp,:64] @ load encrypted counter + add r8, r8, #1 +#ifdef __ARMEL__ + rev r0, r8 + str r0, [sp, #0x1c] @ next counter value +#else + str r8, [sp, #0x1c] @ next counter value +#endif + veor @XMM[0],@XMM[0],@XMM[1] + vst1.8 {@XMM[0]}, [r5]! @ store output + subs r6, r6, #1 + bne .Lctr_enc_short_loop + + vmov.i32 q0, #0 + vmov.i32 q1, #0 + vstmia sp!, {q0-q1} + + ldmia sp!, {r4-r8, pc} +.size bsaes_ctr32_encrypt_blocks,.-bsaes_ctr32_encrypt_blocks +___ +} +{ +###################################################################### +# void bsaes_xts_[en|de]crypt(const char *inp,char *out,size_t len, +# const AES_KEY *key1, const AES_KEY *key2, +# const unsigned char iv[16]); +# +my ($inp,$out,$len,$key,$rounds,$magic,$fp)=(map("r$_",(7..10,1..3))); +my $const="r6"; # returned by _bsaes_key_convert +my $twmask=@XMM[5]; +my @T=@XMM[6..7]; + +$code.=<<___; +.globl bsaes_xts_encrypt +.type bsaes_xts_encrypt,%function +.align 4 +bsaes_xts_encrypt: + mov ip, sp + stmdb sp!, {r4-r10, lr} @ 0x20 + VFP_ABI_PUSH + mov r6, sp @ future $fp + + mov $inp, r0 + mov $out, r1 + mov $len, r2 + mov $key, r3 + + sub r0, sp, #0x10 @ 0x10 + bic r0, #0xf @ align at 16 bytes + mov sp, r0 + +#ifdef XTS_CHAIN_TWEAK + ldr r0, [ip] @ pointer to input tweak +#else + @ generate initial tweak + ldr r0, [ip, #4] @ iv[] + mov r1, sp + ldr r2, [ip, #0] @ key2 + bl AES_encrypt + mov r0,sp @ pointer to initial tweak +#endif + + ldr $rounds, [$key, #240] @ get # of rounds + mov $fp, r6 +#ifndef BSAES_ASM_EXTENDED_KEY + @ allocate the key schedule on the stack + sub r12, sp, $rounds, lsl#7 @ 128 bytes per inner round key + @ add r12, #`128-32` @ size of bit-sliced key schedule + sub r12, #`32+16` @ place for tweak[9] + + @ populate the key schedule + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + mov sp, r12 + add r12, #0x90 @ pass key schedule + bl _bsaes_key_convert + veor @XMM[7], @XMM[7], @XMM[15] @ fix up last round key + vstmia r12, {@XMM[7]} @ save last round key +#else + ldr r12, [$key, #244] + eors r12, #1 + beq 0f + + str r12, [$key, #244] + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + add r12, $key, #248 @ pass key schedule + bl _bsaes_key_convert + veor @XMM[7], @XMM[7], @XMM[15] @ fix up last round key + vstmia r12, {@XMM[7]} + +.align 2 +0: sub sp, #0x90 @ place for tweak[9] +#endif + + vld1.8 {@XMM[8]}, [r0] @ initial tweak + adr $magic, .Lxts_magic + + subs $len, #0x80 + blo .Lxts_enc_short + b .Lxts_enc_loop + +.align 4 +.Lxts_enc_loop: + vldmia $magic, {$twmask} @ load XTS magic + vshr.s64 @T[0], @XMM[8], #63 + mov r0, sp + vand @T[0], @T[0], $twmask +___ +for($i=9;$i<16;$i++) { +$code.=<<___; + vadd.u64 @XMM[$i], @XMM[$i-1], @XMM[$i-1] + vst1.64 {@XMM[$i-1]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + vshr.s64 @T[1], @XMM[$i], #63 + veor @XMM[$i], @XMM[$i], @T[0] + vand @T[1], @T[1], $twmask +___ + @T=reverse(@T); + +$code.=<<___ if ($i>=10); + vld1.8 {@XMM[$i-10]}, [$inp]! +___ +$code.=<<___ if ($i>=11); + veor @XMM[$i-11], @XMM[$i-11], @XMM[$i-3] +___ +} +$code.=<<___; + vadd.u64 @XMM[8], @XMM[15], @XMM[15] + vst1.64 {@XMM[15]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + veor @XMM[8], @XMM[8], @T[0] + vst1.64 {@XMM[8]}, [r0,:128] @ next round tweak + + vld1.8 {@XMM[6]-@XMM[7]}, [$inp]! + veor @XMM[5], @XMM[5], @XMM[13] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[6], @XMM[6], @XMM[14] + mov r5, $rounds @ pass rounds + veor @XMM[7], @XMM[7], @XMM[15] + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[6], @XMM[11] + vld1.64 {@XMM[14]-@XMM[15]}, [r0,:128]! + veor @XMM[10], @XMM[3], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + veor @XMM[12], @XMM[2], @XMM[14] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + veor @XMM[13], @XMM[5], @XMM[15] + vst1.8 {@XMM[12]-@XMM[13]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + + subs $len, #0x80 + bpl .Lxts_enc_loop + +.Lxts_enc_short: + adds $len, #0x70 + bmi .Lxts_enc_done + + vldmia $magic, {$twmask} @ load XTS magic + vshr.s64 @T[0], @XMM[8], #63 + mov r0, sp + vand @T[0], @T[0], $twmask +___ +for($i=9;$i<16;$i++) { +$code.=<<___; + vadd.u64 @XMM[$i], @XMM[$i-1], @XMM[$i-1] + vst1.64 {@XMM[$i-1]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + vshr.s64 @T[1], @XMM[$i], #63 + veor @XMM[$i], @XMM[$i], @T[0] + vand @T[1], @T[1], $twmask +___ + @T=reverse(@T); + +$code.=<<___ if ($i>=10); + vld1.8 {@XMM[$i-10]}, [$inp]! + subs $len, #0x10 + bmi .Lxts_enc_`$i-9` +___ +$code.=<<___ if ($i>=11); + veor @XMM[$i-11], @XMM[$i-11], @XMM[$i-3] +___ +} +$code.=<<___; + sub $len, #0x10 + vst1.64 {@XMM[15]}, [r0,:128] @ next round tweak + + vld1.8 {@XMM[6]}, [$inp]! + veor @XMM[5], @XMM[5], @XMM[13] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[6], @XMM[6], @XMM[14] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[6], @XMM[11] + vld1.64 {@XMM[14]}, [r0,:128]! + veor @XMM[10], @XMM[3], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + veor @XMM[12], @XMM[2], @XMM[14] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + vst1.8 {@XMM[12]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done +.align 4 +.Lxts_enc_6: + vst1.64 {@XMM[14]}, [r0,:128] @ next round tweak + + veor @XMM[4], @XMM[4], @XMM[12] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[5], @XMM[5], @XMM[13] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[6], @XMM[11] + veor @XMM[10], @XMM[3], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done + +@ put this in range for both ARM and Thumb mode adr instructions +.align 5 +.Lxts_magic: + .quad 1, 0x87 + +.align 5 +.Lxts_enc_5: + vst1.64 {@XMM[13]}, [r0,:128] @ next round tweak + + veor @XMM[3], @XMM[3], @XMM[11] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[4], @XMM[4], @XMM[12] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[6], @XMM[11] + veor @XMM[10], @XMM[3], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + vst1.8 {@XMM[10]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done +.align 4 +.Lxts_enc_4: + vst1.64 {@XMM[12]}, [r0,:128] @ next round tweak + + veor @XMM[2], @XMM[2], @XMM[10] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[3], @XMM[3], @XMM[11] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[6], @XMM[11] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done +.align 4 +.Lxts_enc_3: + vst1.64 {@XMM[11]}, [r0,:128] @ next round tweak + + veor @XMM[1], @XMM[1], @XMM[9] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[2], @XMM[2], @XMM[10] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[8]-@XMM[9]}, [r0,:128]! + vld1.64 {@XMM[10]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + vst1.8 {@XMM[8]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done +.align 4 +.Lxts_enc_2: + vst1.64 {@XMM[10]}, [r0,:128] @ next round tweak + + veor @XMM[0], @XMM[0], @XMM[8] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[1], @XMM[1], @XMM[9] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[8]-@XMM[9]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done +.align 4 +.Lxts_enc_1: + mov r0, sp + veor @XMM[0], @XMM[8] + mov r1, sp + vst1.8 {@XMM[0]}, [sp,:128] + mov r2, $key + mov r4, $fp @ preserve fp + + bl AES_encrypt + + vld1.8 {@XMM[0]}, [sp,:128] + veor @XMM[0], @XMM[0], @XMM[8] + vst1.8 {@XMM[0]}, [$out]! + mov $fp, r4 + + vmov @XMM[8], @XMM[9] @ next round tweak + +.Lxts_enc_done: +#ifndef XTS_CHAIN_TWEAK + adds $len, #0x10 + beq .Lxts_enc_ret + sub r6, $out, #0x10 + +.Lxts_enc_steal: + ldrb r0, [$inp], #1 + ldrb r1, [$out, #-0x10] + strb r0, [$out, #-0x10] + strb r1, [$out], #1 + + subs $len, #1 + bhi .Lxts_enc_steal + + vld1.8 {@XMM[0]}, [r6] + mov r0, sp + veor @XMM[0], @XMM[0], @XMM[8] + mov r1, sp + vst1.8 {@XMM[0]}, [sp,:128] + mov r2, $key + mov r4, $fp @ preserve fp + + bl AES_encrypt + + vld1.8 {@XMM[0]}, [sp,:128] + veor @XMM[0], @XMM[0], @XMM[8] + vst1.8 {@XMM[0]}, [r6] + mov $fp, r4 +#endif + +.Lxts_enc_ret: + bic r0, $fp, #0xf + vmov.i32 q0, #0 + vmov.i32 q1, #0 +#ifdef XTS_CHAIN_TWEAK + ldr r1, [$fp, #0x20+VFP_ABI_FRAME] @ chain tweak +#endif +.Lxts_enc_bzero: @ wipe key schedule [if any] + vstmia sp!, {q0-q1} + cmp sp, r0 + bne .Lxts_enc_bzero + + mov sp, $fp +#ifdef XTS_CHAIN_TWEAK + vst1.8 {@XMM[8]}, [r1] +#endif + VFP_ABI_POP + ldmia sp!, {r4-r10, pc} @ return + +.size bsaes_xts_encrypt,.-bsaes_xts_encrypt + +.globl bsaes_xts_decrypt +.type bsaes_xts_decrypt,%function +.align 4 +bsaes_xts_decrypt: + mov ip, sp + stmdb sp!, {r4-r10, lr} @ 0x20 + VFP_ABI_PUSH + mov r6, sp @ future $fp + + mov $inp, r0 + mov $out, r1 + mov $len, r2 + mov $key, r3 + + sub r0, sp, #0x10 @ 0x10 + bic r0, #0xf @ align at 16 bytes + mov sp, r0 + +#ifdef XTS_CHAIN_TWEAK + ldr r0, [ip] @ pointer to input tweak +#else + @ generate initial tweak + ldr r0, [ip, #4] @ iv[] + mov r1, sp + ldr r2, [ip, #0] @ key2 + bl AES_encrypt + mov r0, sp @ pointer to initial tweak +#endif + + ldr $rounds, [$key, #240] @ get # of rounds + mov $fp, r6 +#ifndef BSAES_ASM_EXTENDED_KEY + @ allocate the key schedule on the stack + sub r12, sp, $rounds, lsl#7 @ 128 bytes per inner round key + @ add r12, #`128-32` @ size of bit-sliced key schedule + sub r12, #`32+16` @ place for tweak[9] + + @ populate the key schedule + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + mov sp, r12 + add r12, #0x90 @ pass key schedule + bl _bsaes_key_convert + add r4, sp, #0x90 + vldmia r4, {@XMM[6]} + vstmia r12, {@XMM[15]} @ save last round key + veor @XMM[7], @XMM[7], @XMM[6] @ fix up round 0 key + vstmia r4, {@XMM[7]} +#else + ldr r12, [$key, #244] + eors r12, #1 + beq 0f + + str r12, [$key, #244] + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + add r12, $key, #248 @ pass key schedule + bl _bsaes_key_convert + add r4, $key, #248 + vldmia r4, {@XMM[6]} + vstmia r12, {@XMM[15]} @ save last round key + veor @XMM[7], @XMM[7], @XMM[6] @ fix up round 0 key + vstmia r4, {@XMM[7]} + +.align 2 +0: sub sp, #0x90 @ place for tweak[9] +#endif + vld1.8 {@XMM[8]}, [r0] @ initial tweak + adr $magic, .Lxts_magic + + tst $len, #0xf @ if not multiple of 16 + it ne @ Thumb2 thing, sanity check in ARM + subne $len, #0x10 @ subtract another 16 bytes + subs $len, #0x80 + + blo .Lxts_dec_short + b .Lxts_dec_loop + +.align 4 +.Lxts_dec_loop: + vldmia $magic, {$twmask} @ load XTS magic + vshr.s64 @T[0], @XMM[8], #63 + mov r0, sp + vand @T[0], @T[0], $twmask +___ +for($i=9;$i<16;$i++) { +$code.=<<___; + vadd.u64 @XMM[$i], @XMM[$i-1], @XMM[$i-1] + vst1.64 {@XMM[$i-1]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + vshr.s64 @T[1], @XMM[$i], #63 + veor @XMM[$i], @XMM[$i], @T[0] + vand @T[1], @T[1], $twmask +___ + @T=reverse(@T); + +$code.=<<___ if ($i>=10); + vld1.8 {@XMM[$i-10]}, [$inp]! +___ +$code.=<<___ if ($i>=11); + veor @XMM[$i-11], @XMM[$i-11], @XMM[$i-3] +___ +} +$code.=<<___; + vadd.u64 @XMM[8], @XMM[15], @XMM[15] + vst1.64 {@XMM[15]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + veor @XMM[8], @XMM[8], @T[0] + vst1.64 {@XMM[8]}, [r0,:128] @ next round tweak + + vld1.8 {@XMM[6]-@XMM[7]}, [$inp]! + veor @XMM[5], @XMM[5], @XMM[13] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[6], @XMM[6], @XMM[14] + mov r5, $rounds @ pass rounds + veor @XMM[7], @XMM[7], @XMM[15] + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[4], @XMM[11] + vld1.64 {@XMM[14]-@XMM[15]}, [r0,:128]! + veor @XMM[10], @XMM[2], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + veor @XMM[12], @XMM[3], @XMM[14] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + veor @XMM[13], @XMM[5], @XMM[15] + vst1.8 {@XMM[12]-@XMM[13]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + + subs $len, #0x80 + bpl .Lxts_dec_loop + +.Lxts_dec_short: + adds $len, #0x70 + bmi .Lxts_dec_done + + vldmia $magic, {$twmask} @ load XTS magic + vshr.s64 @T[0], @XMM[8], #63 + mov r0, sp + vand @T[0], @T[0], $twmask +___ +for($i=9;$i<16;$i++) { +$code.=<<___; + vadd.u64 @XMM[$i], @XMM[$i-1], @XMM[$i-1] + vst1.64 {@XMM[$i-1]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + vshr.s64 @T[1], @XMM[$i], #63 + veor @XMM[$i], @XMM[$i], @T[0] + vand @T[1], @T[1], $twmask +___ + @T=reverse(@T); + +$code.=<<___ if ($i>=10); + vld1.8 {@XMM[$i-10]}, [$inp]! + subs $len, #0x10 + bmi .Lxts_dec_`$i-9` +___ +$code.=<<___ if ($i>=11); + veor @XMM[$i-11], @XMM[$i-11], @XMM[$i-3] +___ +} +$code.=<<___; + sub $len, #0x10 + vst1.64 {@XMM[15]}, [r0,:128] @ next round tweak + + vld1.8 {@XMM[6]}, [$inp]! + veor @XMM[5], @XMM[5], @XMM[13] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[6], @XMM[6], @XMM[14] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[4], @XMM[11] + vld1.64 {@XMM[14]}, [r0,:128]! + veor @XMM[10], @XMM[2], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + veor @XMM[12], @XMM[3], @XMM[14] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + vst1.8 {@XMM[12]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_6: + vst1.64 {@XMM[14]}, [r0,:128] @ next round tweak + + veor @XMM[4], @XMM[4], @XMM[12] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[5], @XMM[5], @XMM[13] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[4], @XMM[11] + veor @XMM[10], @XMM[2], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_5: + vst1.64 {@XMM[13]}, [r0,:128] @ next round tweak + + veor @XMM[3], @XMM[3], @XMM[11] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[4], @XMM[4], @XMM[12] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[4], @XMM[11] + veor @XMM[10], @XMM[2], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + vst1.8 {@XMM[10]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_4: + vst1.64 {@XMM[12]}, [r0,:128] @ next round tweak + + veor @XMM[2], @XMM[2], @XMM[10] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[3], @XMM[3], @XMM[11] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[4], @XMM[11] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_3: + vst1.64 {@XMM[11]}, [r0,:128] @ next round tweak + + veor @XMM[1], @XMM[1], @XMM[9] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[2], @XMM[2], @XMM[10] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[8]-@XMM[9]}, [r0,:128]! + vld1.64 {@XMM[10]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + vst1.8 {@XMM[8]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_2: + vst1.64 {@XMM[10]}, [r0,:128] @ next round tweak + + veor @XMM[0], @XMM[0], @XMM[8] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[1], @XMM[1], @XMM[9] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[8]-@XMM[9]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_1: + mov r0, sp + veor @XMM[0], @XMM[8] + mov r1, sp + vst1.8 {@XMM[0]}, [sp,:128] + mov r2, $key + mov r4, $fp @ preserve fp + mov r5, $magic @ preserve magic + + bl AES_decrypt + + vld1.8 {@XMM[0]}, [sp,:128] + veor @XMM[0], @XMM[0], @XMM[8] + vst1.8 {@XMM[0]}, [$out]! + mov $fp, r4 + mov $magic, r5 + + vmov @XMM[8], @XMM[9] @ next round tweak + +.Lxts_dec_done: +#ifndef XTS_CHAIN_TWEAK + adds $len, #0x10 + beq .Lxts_dec_ret + + @ calculate one round of extra tweak for the stolen ciphertext + vldmia $magic, {$twmask} + vshr.s64 @XMM[6], @XMM[8], #63 + vand @XMM[6], @XMM[6], $twmask + vadd.u64 @XMM[9], @XMM[8], @XMM[8] + vswp `&Dhi("@XMM[6]")`,`&Dlo("@XMM[6]")` + veor @XMM[9], @XMM[9], @XMM[6] + + @ perform the final decryption with the last tweak value + vld1.8 {@XMM[0]}, [$inp]! + mov r0, sp + veor @XMM[0], @XMM[0], @XMM[9] + mov r1, sp + vst1.8 {@XMM[0]}, [sp,:128] + mov r2, $key + mov r4, $fp @ preserve fp + + bl AES_decrypt + + vld1.8 {@XMM[0]}, [sp,:128] + veor @XMM[0], @XMM[0], @XMM[9] + vst1.8 {@XMM[0]}, [$out] + + mov r6, $out +.Lxts_dec_steal: + ldrb r1, [$out] + ldrb r0, [$inp], #1 + strb r1, [$out, #0x10] + strb r0, [$out], #1 + + subs $len, #1 + bhi .Lxts_dec_steal + + vld1.8 {@XMM[0]}, [r6] + mov r0, sp + veor @XMM[0], @XMM[8] + mov r1, sp + vst1.8 {@XMM[0]}, [sp,:128] + mov r2, $key + + bl AES_decrypt + + vld1.8 {@XMM[0]}, [sp,:128] + veor @XMM[0], @XMM[0], @XMM[8] + vst1.8 {@XMM[0]}, [r6] + mov $fp, r4 +#endif + +.Lxts_dec_ret: + bic r0, $fp, #0xf + vmov.i32 q0, #0 + vmov.i32 q1, #0 +#ifdef XTS_CHAIN_TWEAK + ldr r1, [$fp, #0x20+VFP_ABI_FRAME] @ chain tweak +#endif +.Lxts_dec_bzero: @ wipe key schedule [if any] + vstmia sp!, {q0-q1} + cmp sp, r0 + bne .Lxts_dec_bzero + + mov sp, $fp +#ifdef XTS_CHAIN_TWEAK + vst1.8 {@XMM[8]}, [r1] +#endif + VFP_ABI_POP + ldmia sp!, {r4-r10, pc} @ return + +.size bsaes_xts_decrypt,.-bsaes_xts_decrypt +___ +} +$code.=<<___; +#endif +#endif +___ + +$code =~ s/\`([^\`]*)\`/eval($1)/gem; + +open SELF,$0; +while(<SELF>) { + next if (/^#!/); + last if (!s/^#/@/ and !/^$/); + print; +} +close SELF; + +print $code; + +close STDOUT; diff --git a/crypto/aes/asm/bsaes-x86_64.pl b/crypto/aes/asm/bsaes-x86_64.pl new file mode 100644 index 00000000..41b90f08 --- /dev/null +++ b/crypto/aes/asm/bsaes-x86_64.pl @@ -0,0 +1,3108 @@ +#!/usr/bin/env perl + +################################################################### +### AES-128 [originally in CTR mode] ### +### bitsliced implementation for Intel Core 2 processors ### +### requires support of SSE extensions up to SSSE3 ### +### Author: Emilia Käsper and Peter Schwabe ### +### Date: 2009-03-19 ### +### Public domain ### +### ### +### See http://homes.esat.kuleuven.be/~ekasper/#software for ### +### further information. ### +################################################################### +# +# September 2011. +# +# Started as transliteration to "perlasm" the original code has +# undergone following changes: +# +# - code was made position-independent; +# - rounds were folded into a loop resulting in >5x size reduction +# from 12.5KB to 2.2KB; +# - above was possibile thanks to mixcolumns() modification that +# allowed to feed its output back to aesenc[last], this was +# achieved at cost of two additional inter-registers moves; +# - some instruction reordering and interleaving; +# - this module doesn't implement key setup subroutine, instead it +# relies on conversion of "conventional" key schedule as returned +# by AES_set_encrypt_key (see discussion below); +# - first and last round keys are treated differently, which allowed +# to skip one shiftrows(), reduce bit-sliced key schedule and +# speed-up conversion by 22%; +# - support for 192- and 256-bit keys was added; +# +# Resulting performance in CPU cycles spent to encrypt one byte out +# of 4096-byte buffer with 128-bit key is: +# +# Emilia's this(*) difference +# +# Core 2 9.30 8.69 +7% +# Nehalem(**) 7.63 6.98 +9% +# Atom 17.1 17.4 -2%(***) +# +# (*) Comparison is not completely fair, because "this" is ECB, +# i.e. no extra processing such as counter values calculation +# and xor-ing input as in Emilia's CTR implementation is +# performed. However, the CTR calculations stand for not more +# than 1% of total time, so comparison is *rather* fair. +# +# (**) Results were collected on Westmere, which is considered to +# be equivalent to Nehalem for this code. +# +# (***) Slowdown on Atom is rather strange per se, because original +# implementation has a number of 9+-bytes instructions, which +# are bad for Atom front-end, and which I eliminated completely. +# In attempt to address deterioration sbox() was tested in FP +# SIMD "domain" (movaps instead of movdqa, xorps instead of +# pxor, etc.). While it resulted in nominal 4% improvement on +# Atom, it hurted Westmere by more than 2x factor. +# +# As for key schedule conversion subroutine. Interface to OpenSSL +# relies on per-invocation on-the-fly conversion. This naturally +# has impact on performance, especially for short inputs. Conversion +# time in CPU cycles and its ratio to CPU cycles spent in 8x block +# function is: +# +# conversion conversion/8x block +# Core 2 240 0.22 +# Nehalem 180 0.20 +# Atom 430 0.19 +# +# The ratio values mean that 128-byte blocks will be processed +# 16-18% slower, 256-byte blocks - 9-10%, 384-byte blocks - 6-7%, +# etc. Then keep in mind that input sizes not divisible by 128 are +# *effectively* slower, especially shortest ones, e.g. consecutive +# 144-byte blocks are processed 44% slower than one would expect, +# 272 - 29%, 400 - 22%, etc. Yet, despite all these "shortcomings" +# it's still faster than ["hyper-threading-safe" code path in] +# aes-x86_64.pl on all lengths above 64 bytes... +# +# October 2011. +# +# Add decryption procedure. Performance in CPU cycles spent to decrypt +# one byte out of 4096-byte buffer with 128-bit key is: +# +# Core 2 9.83 +# Nehalem 7.74 +# Atom 19.0 +# +# November 2011. +# +# Add bsaes_xts_[en|de]crypt. Less-than-80-bytes-block performance is +# suboptimal, but XTS is meant to be used with larger blocks... +# +# <appro@openssl.org> + +$flavour = shift; +$output = shift; +if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } + +$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or +( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or +die "can't locate x86_64-xlate.pl"; + +open OUT,"| \"$^X\" $xlate $flavour $output"; +*STDOUT=*OUT; + +my ($inp,$out,$len,$key,$ivp)=("%rdi","%rsi","%rdx","%rcx"); +my @XMM=map("%xmm$_",(15,0..14)); # best on Atom, +10% over (0..15) +my $ecb=0; # suppress unreferenced ECB subroutines, spare some space... + +{ +my ($key,$rounds,$const)=("%rax","%r10d","%r11"); + +sub Sbox { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b0, b1, b4, b6, b3, b7, b2, b5] < msb +my @b=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; + &InBasisChange (@b); + &Inv_GF256 (@b[6,5,0,3,7,1,4,2],@t,@s); + &OutBasisChange (@b[7,1,4,2,6,5,0,3]); +} + +sub InBasisChange { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b6, b5, b0, b3, b7, b1, b4, b2] < msb +my @b=@_[0..7]; +$code.=<<___; + pxor @b[6], @b[5] + pxor @b[1], @b[2] + pxor @b[0], @b[3] + pxor @b[2], @b[6] + pxor @b[0], @b[5] + + pxor @b[3], @b[6] + pxor @b[7], @b[3] + pxor @b[5], @b[7] + pxor @b[4], @b[3] + pxor @b[5], @b[4] + pxor @b[1], @b[3] + + pxor @b[7], @b[2] + pxor @b[5], @b[1] +___ +} + +sub OutBasisChange { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b6, b1, b2, b4, b7, b0, b3, b5] < msb +my @b=@_[0..7]; +$code.=<<___; + pxor @b[6], @b[0] + pxor @b[4], @b[1] + pxor @b[0], @b[2] + pxor @b[6], @b[4] + pxor @b[1], @b[6] + + pxor @b[5], @b[1] + pxor @b[3], @b[5] + pxor @b[7], @b[3] + pxor @b[5], @b[7] + pxor @b[5], @b[2] + + pxor @b[7], @b[4] +___ +} + +sub InvSbox { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b0, b1, b6, b4, b2, b7, b3, b5] < msb +my @b=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; + &InvInBasisChange (@b); + &Inv_GF256 (@b[5,1,2,6,3,7,0,4],@t,@s); + &InvOutBasisChange (@b[3,7,0,4,5,1,2,6]); +} + +sub InvInBasisChange { # OutBasisChange in reverse +my @b=@_[5,1,2,6,3,7,0,4]; +$code.=<<___ + pxor @b[7], @b[4] + + pxor @b[5], @b[7] + pxor @b[5], @b[2] + pxor @b[7], @b[3] + pxor @b[3], @b[5] + pxor @b[5], @b[1] + + pxor @b[1], @b[6] + pxor @b[0], @b[2] + pxor @b[6], @b[4] + pxor @b[6], @b[0] + pxor @b[4], @b[1] +___ +} + +sub InvOutBasisChange { # InBasisChange in reverse +my @b=@_[2,5,7,3,6,1,0,4]; +$code.=<<___; + pxor @b[5], @b[1] + pxor @b[7], @b[2] + + pxor @b[1], @b[3] + pxor @b[5], @b[4] + pxor @b[5], @b[7] + pxor @b[4], @b[3] + pxor @b[0], @b[5] + pxor @b[7], @b[3] + pxor @b[2], @b[6] + pxor @b[1], @b[2] + pxor @b[3], @b[6] + + pxor @b[0], @b[3] + pxor @b[6], @b[5] +___ +} + +sub Mul_GF4 { +#;************************************************************* +#;* Mul_GF4: Input x0-x1,y0-y1 Output x0-x1 Temp t0 (8) * +#;************************************************************* +my ($x0,$x1,$y0,$y1,$t0)=@_; +$code.=<<___; + movdqa $y0, $t0 + pxor $y1, $t0 + pand $x0, $t0 + pxor $x1, $x0 + pand $y0, $x1 + pand $y1, $x0 + pxor $x1, $x0 + pxor $t0, $x1 +___ +} + +sub Mul_GF4_N { # not used, see next subroutine +# multiply and scale by N +my ($x0,$x1,$y0,$y1,$t0)=@_; +$code.=<<___; + movdqa $y0, $t0 + pxor $y1, $t0 + pand $x0, $t0 + pxor $x1, $x0 + pand $y0, $x1 + pand $y1, $x0 + pxor $x0, $x1 + pxor $t0, $x0 +___ +} + +sub Mul_GF4_N_GF4 { +# interleaved Mul_GF4_N and Mul_GF4 +my ($x0,$x1,$y0,$y1,$t0, + $x2,$x3,$y2,$y3,$t1)=@_; +$code.=<<___; + movdqa $y0, $t0 + movdqa $y2, $t1 + pxor $y1, $t0 + pxor $y3, $t1 + pand $x0, $t0 + pand $x2, $t1 + pxor $x1, $x0 + pxor $x3, $x2 + pand $y0, $x1 + pand $y2, $x3 + pand $y1, $x0 + pand $y3, $x2 + pxor $x0, $x1 + pxor $x3, $x2 + pxor $t0, $x0 + pxor $t1, $x3 +___ +} +sub Mul_GF16_2 { +my @x=@_[0..7]; +my @y=@_[8..11]; +my @t=@_[12..15]; +$code.=<<___; + movdqa @x[0], @t[0] + movdqa @x[1], @t[1] +___ + &Mul_GF4 (@x[0], @x[1], @y[0], @y[1], @t[2]); +$code.=<<___; + pxor @x[2], @t[0] + pxor @x[3], @t[1] + pxor @y[2], @y[0] + pxor @y[3], @y[1] +___ + Mul_GF4_N_GF4 (@t[0], @t[1], @y[0], @y[1], @t[3], + @x[2], @x[3], @y[2], @y[3], @t[2]); +$code.=<<___; + pxor @t[0], @x[0] + pxor @t[0], @x[2] + pxor @t[1], @x[1] + pxor @t[1], @x[3] + + movdqa @x[4], @t[0] + movdqa @x[5], @t[1] + pxor @x[6], @t[0] + pxor @x[7], @t[1] +___ + &Mul_GF4_N_GF4 (@t[0], @t[1], @y[0], @y[1], @t[3], + @x[6], @x[7], @y[2], @y[3], @t[2]); +$code.=<<___; + pxor @y[2], @y[0] + pxor @y[3], @y[1] +___ + &Mul_GF4 (@x[4], @x[5], @y[0], @y[1], @t[3]); +$code.=<<___; + pxor @t[0], @x[4] + pxor @t[0], @x[6] + pxor @t[1], @x[5] + pxor @t[1], @x[7] +___ +} +sub Inv_GF256 { +#;******************************************************************** +#;* Inv_GF256: Input x0-x7 Output x0-x7 Temp t0-t3,s0-s3 (144) * +#;******************************************************************** +my @x=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; +# direct optimizations from hardware +$code.=<<___; + movdqa @x[4], @t[3] + movdqa @x[5], @t[2] + movdqa @x[1], @t[1] + movdqa @x[7], @s[1] + movdqa @x[0], @s[0] + + pxor @x[6], @t[3] + pxor @x[7], @t[2] + pxor @x[3], @t[1] + movdqa @t[3], @s[2] + pxor @x[6], @s[1] + movdqa @t[2], @t[0] + pxor @x[2], @s[0] + movdqa @t[3], @s[3] + + por @t[1], @t[2] + por @s[0], @t[3] + pxor @t[0], @s[3] + pand @s[0], @s[2] + pxor @t[1], @s[0] + pand @t[1], @t[0] + pand @s[0], @s[3] + movdqa @x[3], @s[0] + pxor @x[2], @s[0] + pand @s[0], @s[1] + pxor @s[1], @t[3] + pxor @s[1], @t[2] + movdqa @x[4], @s[1] + movdqa @x[1], @s[0] + pxor @x[5], @s[1] + pxor @x[0], @s[0] + movdqa @s[1], @t[1] + pand @s[0], @s[1] + por @s[0], @t[1] + pxor @s[1], @t[0] + pxor @s[3], @t[3] + pxor @s[2], @t[2] + pxor @s[3], @t[1] + movdqa @x[7], @s[0] + pxor @s[2], @t[0] + movdqa @x[6], @s[1] + pxor @s[2], @t[1] + movdqa @x[5], @s[2] + pand @x[3], @s[0] + movdqa @x[4], @s[3] + pand @x[2], @s[1] + pand @x[1], @s[2] + por @x[0], @s[3] + pxor @s[0], @t[3] + pxor @s[1], @t[2] + pxor @s[2], @t[1] + pxor @s[3], @t[0] + + #Inv_GF16 \t0, \t1, \t2, \t3, \s0, \s1, \s2, \s3 + + # new smaller inversion + + movdqa @t[3], @s[0] + pand @t[1], @t[3] + pxor @t[2], @s[0] + + movdqa @t[0], @s[2] + movdqa @s[0], @s[3] + pxor @t[3], @s[2] + pand @s[2], @s[3] + + movdqa @t[1], @s[1] + pxor @t[2], @s[3] + pxor @t[0], @s[1] + + pxor @t[2], @t[3] + + pand @t[3], @s[1] + + movdqa @s[2], @t[2] + pxor @t[0], @s[1] + + pxor @s[1], @t[2] + pxor @s[1], @t[1] + + pand @t[0], @t[2] + + pxor @t[2], @s[2] + pxor @t[2], @t[1] + + pand @s[3], @s[2] + + pxor @s[0], @s[2] +___ +# output in s3, s2, s1, t1 + +# Mul_GF16_2 \x0, \x1, \x2, \x3, \x4, \x5, \x6, \x7, \t2, \t3, \t0, \t1, \s0, \s1, \s2, \s3 + +# Mul_GF16_2 \x0, \x1, \x2, \x3, \x4, \x5, \x6, \x7, \s3, \s2, \s1, \t1, \s0, \t0, \t2, \t3 + &Mul_GF16_2(@x,@s[3,2,1],@t[1],@s[0],@t[0,2,3]); + +### output msb > [x3,x2,x1,x0,x7,x6,x5,x4] < lsb +} + +# AES linear components + +sub ShiftRows { +my @x=@_[0..7]; +my $mask=pop; +$code.=<<___; + pxor 0x00($key),@x[0] + pxor 0x10($key),@x[1] + pshufb $mask,@x[0] + pxor 0x20($key),@x[2] + pshufb $mask,@x[1] + pxor 0x30($key),@x[3] + pshufb $mask,@x[2] + pxor 0x40($key),@x[4] + pshufb $mask,@x[3] + pxor 0x50($key),@x[5] + pshufb $mask,@x[4] + pxor 0x60($key),@x[6] + pshufb $mask,@x[5] + pxor 0x70($key),@x[7] + pshufb $mask,@x[6] + lea 0x80($key),$key + pshufb $mask,@x[7] +___ +} + +sub MixColumns { +# modified to emit output in order suitable for feeding back to aesenc[last] +my @x=@_[0..7]; +my @t=@_[8..15]; +my $inv=@_[16]; # optional +$code.=<<___; + pshufd \$0x93, @x[0], @t[0] # x0 <<< 32 + pshufd \$0x93, @x[1], @t[1] + pxor @t[0], @x[0] # x0 ^ (x0 <<< 32) + pshufd \$0x93, @x[2], @t[2] + pxor @t[1], @x[1] + pshufd \$0x93, @x[3], @t[3] + pxor @t[2], @x[2] + pshufd \$0x93, @x[4], @t[4] + pxor @t[3], @x[3] + pshufd \$0x93, @x[5], @t[5] + pxor @t[4], @x[4] + pshufd \$0x93, @x[6], @t[6] + pxor @t[5], @x[5] + pshufd \$0x93, @x[7], @t[7] + pxor @t[6], @x[6] + pxor @t[7], @x[7] + + pxor @x[0], @t[1] + pxor @x[7], @t[0] + pxor @x[7], @t[1] + pshufd \$0x4E, @x[0], @x[0] # (x0 ^ (x0 <<< 32)) <<< 64) + pxor @x[1], @t[2] + pshufd \$0x4E, @x[1], @x[1] + pxor @x[4], @t[5] + pxor @t[0], @x[0] + pxor @x[5], @t[6] + pxor @t[1], @x[1] + pxor @x[3], @t[4] + pshufd \$0x4E, @x[4], @t[0] + pxor @x[6], @t[7] + pshufd \$0x4E, @x[5], @t[1] + pxor @x[2], @t[3] + pshufd \$0x4E, @x[3], @x[4] + pxor @x[7], @t[3] + pshufd \$0x4E, @x[7], @x[5] + pxor @x[7], @t[4] + pshufd \$0x4E, @x[6], @x[3] + pxor @t[4], @t[0] + pshufd \$0x4E, @x[2], @x[6] + pxor @t[5], @t[1] +___ +$code.=<<___ if (!$inv); + pxor @t[3], @x[4] + pxor @t[7], @x[5] + pxor @t[6], @x[3] + movdqa @t[0], @x[2] + pxor @t[2], @x[6] + movdqa @t[1], @x[7] +___ +$code.=<<___ if ($inv); + pxor @x[4], @t[3] + pxor @t[7], @x[5] + pxor @x[3], @t[6] + movdqa @t[0], @x[3] + pxor @t[2], @x[6] + movdqa @t[6], @x[2] + movdqa @t[1], @x[7] + movdqa @x[6], @x[4] + movdqa @t[3], @x[6] +___ +} + +sub InvMixColumns_orig { +my @x=@_[0..7]; +my @t=@_[8..15]; + +$code.=<<___; + # multiplication by 0x0e + pshufd \$0x93, @x[7], @t[7] + movdqa @x[2], @t[2] + pxor @x[5], @x[7] # 7 5 + pxor @x[5], @x[2] # 2 5 + pshufd \$0x93, @x[0], @t[0] + movdqa @x[5], @t[5] + pxor @x[0], @x[5] # 5 0 [1] + pxor @x[1], @x[0] # 0 1 + pshufd \$0x93, @x[1], @t[1] + pxor @x[2], @x[1] # 1 25 + pxor @x[6], @x[0] # 01 6 [2] + pxor @x[3], @x[1] # 125 3 [4] + pshufd \$0x93, @x[3], @t[3] + pxor @x[0], @x[2] # 25 016 [3] + pxor @x[7], @x[3] # 3 75 + pxor @x[6], @x[7] # 75 6 [0] + pshufd \$0x93, @x[6], @t[6] + movdqa @x[4], @t[4] + pxor @x[4], @x[6] # 6 4 + pxor @x[3], @x[4] # 4 375 [6] + pxor @x[7], @x[3] # 375 756=36 + pxor @t[5], @x[6] # 64 5 [7] + pxor @t[2], @x[3] # 36 2 + pxor @t[4], @x[3] # 362 4 [5] + pshufd \$0x93, @t[5], @t[5] +___ + my @y = @x[7,5,0,2,1,3,4,6]; +$code.=<<___; + # multiplication by 0x0b + pxor @y[0], @y[1] + pxor @t[0], @y[0] + pxor @t[1], @y[1] + pshufd \$0x93, @t[2], @t[2] + pxor @t[5], @y[0] + pxor @t[6], @y[1] + pxor @t[7], @y[0] + pshufd \$0x93, @t[4], @t[4] + pxor @t[6], @t[7] # clobber t[7] + pxor @y[0], @y[1] + + pxor @t[0], @y[3] + pshufd \$0x93, @t[0], @t[0] + pxor @t[1], @y[2] + pxor @t[1], @y[4] + pxor @t[2], @y[2] + pshufd \$0x93, @t[1], @t[1] + pxor @t[2], @y[3] + pxor @t[2], @y[5] + pxor @t[7], @y[2] + pshufd \$0x93, @t[2], @t[2] + pxor @t[3], @y[3] + pxor @t[3], @y[6] + pxor @t[3], @y[4] + pshufd \$0x93, @t[3], @t[3] + pxor @t[4], @y[7] + pxor @t[4], @y[5] + pxor @t[7], @y[7] + pxor @t[5], @y[3] + pxor @t[4], @y[4] + pxor @t[5], @t[7] # clobber t[7] even more + + pxor @t[7], @y[5] + pshufd \$0x93, @t[4], @t[4] + pxor @t[7], @y[6] + pxor @t[7], @y[4] + + pxor @t[5], @t[7] + pshufd \$0x93, @t[5], @t[5] + pxor @t[6], @t[7] # restore t[7] + + # multiplication by 0x0d + pxor @y[7], @y[4] + pxor @t[4], @y[7] + pshufd \$0x93, @t[6], @t[6] + pxor @t[0], @y[2] + pxor @t[5], @y[7] + pxor @t[2], @y[2] + pshufd \$0x93, @t[7], @t[7] + + pxor @y[1], @y[3] + pxor @t[1], @y[1] + pxor @t[0], @y[0] + pxor @t[0], @y[3] + pxor @t[5], @y[1] + pxor @t[5], @y[0] + pxor @t[7], @y[1] + pshufd \$0x93, @t[0], @t[0] + pxor @t[6], @y[0] + pxor @y[1], @y[3] + pxor @t[1], @y[4] + pshufd \$0x93, @t[1], @t[1] + + pxor @t[7], @y[7] + pxor @t[2], @y[4] + pxor @t[2], @y[5] + pshufd \$0x93, @t[2], @t[2] + pxor @t[6], @y[2] + pxor @t[3], @t[6] # clobber t[6] + pxor @y[7], @y[4] + pxor @t[6], @y[3] + + pxor @t[6], @y[6] + pxor @t[5], @y[5] + pxor @t[4], @y[6] + pshufd \$0x93, @t[4], @t[4] + pxor @t[6], @y[5] + pxor @t[7], @y[6] + pxor @t[3], @t[6] # restore t[6] + + pshufd \$0x93, @t[5], @t[5] + pshufd \$0x93, @t[6], @t[6] + pshufd \$0x93, @t[7], @t[7] + pshufd \$0x93, @t[3], @t[3] + + # multiplication by 0x09 + pxor @y[1], @y[4] + pxor @y[1], @t[1] # t[1]=y[1] + pxor @t[5], @t[0] # clobber t[0] + pxor @t[5], @t[1] + pxor @t[0], @y[3] + pxor @y[0], @t[0] # t[0]=y[0] + pxor @t[6], @t[1] + pxor @t[7], @t[6] # clobber t[6] + pxor @t[1], @y[4] + pxor @t[4], @y[7] + pxor @y[4], @t[4] # t[4]=y[4] + pxor @t[3], @y[6] + pxor @y[3], @t[3] # t[3]=y[3] + pxor @t[2], @y[5] + pxor @y[2], @t[2] # t[2]=y[2] + pxor @t[7], @t[3] + pxor @y[5], @t[5] # t[5]=y[5] + pxor @t[6], @t[2] + pxor @t[6], @t[5] + pxor @y[6], @t[6] # t[6]=y[6] + pxor @y[7], @t[7] # t[7]=y[7] + + movdqa @t[0],@XMM[0] + movdqa @t[1],@XMM[1] + movdqa @t[2],@XMM[2] + movdqa @t[3],@XMM[3] + movdqa @t[4],@XMM[4] + movdqa @t[5],@XMM[5] + movdqa @t[6],@XMM[6] + movdqa @t[7],@XMM[7] +___ +} + +sub InvMixColumns { +my @x=@_[0..7]; +my @t=@_[8..15]; + +# Thanks to Jussi Kivilinna for providing pointer to +# +# | 0e 0b 0d 09 | | 02 03 01 01 | | 05 00 04 00 | +# | 09 0e 0b 0d | = | 01 02 03 01 | x | 00 05 00 04 | +# | 0d 09 0e 0b | | 01 01 02 03 | | 04 00 05 00 | +# | 0b 0d 09 0e | | 03 01 01 02 | | 00 04 00 05 | + +$code.=<<___; + # multiplication by 0x05-0x00-0x04-0x00 + pshufd \$0x4E, @x[0], @t[0] + pshufd \$0x4E, @x[6], @t[6] + pxor @x[0], @t[0] + pshufd \$0x4E, @x[7], @t[7] + pxor @x[6], @t[6] + pshufd \$0x4E, @x[1], @t[1] + pxor @x[7], @t[7] + pshufd \$0x4E, @x[2], @t[2] + pxor @x[1], @t[1] + pshufd \$0x4E, @x[3], @t[3] + pxor @x[2], @t[2] + pxor @t[6], @x[0] + pxor @t[6], @x[1] + pshufd \$0x4E, @x[4], @t[4] + pxor @x[3], @t[3] + pxor @t[0], @x[2] + pxor @t[1], @x[3] + pshufd \$0x4E, @x[5], @t[5] + pxor @x[4], @t[4] + pxor @t[7], @x[1] + pxor @t[2], @x[4] + pxor @x[5], @t[5] + + pxor @t[7], @x[2] + pxor @t[6], @x[3] + pxor @t[6], @x[4] + pxor @t[3], @x[5] + pxor @t[4], @x[6] + pxor @t[7], @x[4] + pxor @t[7], @x[5] + pxor @t[5], @x[7] +___ + &MixColumns (@x,@t,1); # flipped 2<->3 and 4<->6 +} + +sub aesenc { # not used +my @b=@_[0..7]; +my @t=@_[8..15]; +$code.=<<___; + movdqa 0x30($const),@t[0] # .LSR +___ + &ShiftRows (@b,@t[0]); + &Sbox (@b,@t); + &MixColumns (@b[0,1,4,6,3,7,2,5],@t); +} + +sub aesenclast { # not used +my @b=@_[0..7]; +my @t=@_[8..15]; +$code.=<<___; + movdqa 0x40($const),@t[0] # .LSRM0 +___ + &ShiftRows (@b,@t[0]); + &Sbox (@b,@t); +$code.=<<___ + pxor 0x00($key),@b[0] + pxor 0x10($key),@b[1] + pxor 0x20($key),@b[4] + pxor 0x30($key),@b[6] + pxor 0x40($key),@b[3] + pxor 0x50($key),@b[7] + pxor 0x60($key),@b[2] + pxor 0x70($key),@b[5] +___ +} + +sub swapmove { +my ($a,$b,$n,$mask,$t)=@_; +$code.=<<___; + movdqa $b,$t + psrlq \$$n,$b + pxor $a,$b + pand $mask,$b + pxor $b,$a + psllq \$$n,$b + pxor $t,$b +___ +} +sub swapmove2x { +my ($a0,$b0,$a1,$b1,$n,$mask,$t0,$t1)=@_; +$code.=<<___; + movdqa $b0,$t0 + psrlq \$$n,$b0 + movdqa $b1,$t1 + psrlq \$$n,$b1 + pxor $a0,$b0 + pxor $a1,$b1 + pand $mask,$b0 + pand $mask,$b1 + pxor $b0,$a0 + psllq \$$n,$b0 + pxor $b1,$a1 + psllq \$$n,$b1 + pxor $t0,$b0 + pxor $t1,$b1 +___ +} + +sub bitslice { +my @x=reverse(@_[0..7]); +my ($t0,$t1,$t2,$t3)=@_[8..11]; +$code.=<<___; + movdqa 0x00($const),$t0 # .LBS0 + movdqa 0x10($const),$t1 # .LBS1 +___ + &swapmove2x(@x[0,1,2,3],1,$t0,$t2,$t3); + &swapmove2x(@x[4,5,6,7],1,$t0,$t2,$t3); +$code.=<<___; + movdqa 0x20($const),$t0 # .LBS2 +___ + &swapmove2x(@x[0,2,1,3],2,$t1,$t2,$t3); + &swapmove2x(@x[4,6,5,7],2,$t1,$t2,$t3); + + &swapmove2x(@x[0,4,1,5],4,$t0,$t2,$t3); + &swapmove2x(@x[2,6,3,7],4,$t0,$t2,$t3); +} + +$code.=<<___; +.text + +.extern asm_AES_encrypt +.extern asm_AES_decrypt + +.type _bsaes_encrypt8,\@abi-omnipotent +.align 64 +_bsaes_encrypt8: + lea .LBS0(%rip), $const # constants table + + movdqa ($key), @XMM[9] # round 0 key + lea 0x10($key), $key + movdqa 0x50($const), @XMM[8] # .LM0SR + pxor @XMM[9], @XMM[0] # xor with round0 key + pxor @XMM[9], @XMM[1] + pshufb @XMM[8], @XMM[0] + pxor @XMM[9], @XMM[2] + pshufb @XMM[8], @XMM[1] + pxor @XMM[9], @XMM[3] + pshufb @XMM[8], @XMM[2] + pxor @XMM[9], @XMM[4] + pshufb @XMM[8], @XMM[3] + pxor @XMM[9], @XMM[5] + pshufb @XMM[8], @XMM[4] + pxor @XMM[9], @XMM[6] + pshufb @XMM[8], @XMM[5] + pxor @XMM[9], @XMM[7] + pshufb @XMM[8], @XMM[6] + pshufb @XMM[8], @XMM[7] +_bsaes_encrypt8_bitslice: +___ + &bitslice (@XMM[0..7, 8..11]); +$code.=<<___; + dec $rounds + jmp .Lenc_sbox +.align 16 +.Lenc_loop: +___ + &ShiftRows (@XMM[0..7, 8]); +$code.=".Lenc_sbox:\n"; + &Sbox (@XMM[0..7, 8..15]); +$code.=<<___; + dec $rounds + jl .Lenc_done +___ + &MixColumns (@XMM[0,1,4,6,3,7,2,5, 8..15]); +$code.=<<___; + movdqa 0x30($const), @XMM[8] # .LSR + jnz .Lenc_loop + movdqa 0x40($const), @XMM[8] # .LSRM0 + jmp .Lenc_loop +.align 16 +.Lenc_done: +___ + # output in lsb > [t0, t1, t4, t6, t3, t7, t2, t5] < msb + &bitslice (@XMM[0,1,4,6,3,7,2,5, 8..11]); +$code.=<<___; + movdqa ($key), @XMM[8] # last round key + pxor @XMM[8], @XMM[4] + pxor @XMM[8], @XMM[6] + pxor @XMM[8], @XMM[3] + pxor @XMM[8], @XMM[7] + pxor @XMM[8], @XMM[2] + pxor @XMM[8], @XMM[5] + pxor @XMM[8], @XMM[0] + pxor @XMM[8], @XMM[1] + ret +.size _bsaes_encrypt8,.-_bsaes_encrypt8 + +.type _bsaes_decrypt8,\@abi-omnipotent +.align 64 +_bsaes_decrypt8: + lea .LBS0(%rip), $const # constants table + + movdqa ($key), @XMM[9] # round 0 key + lea 0x10($key), $key + movdqa -0x30($const), @XMM[8] # .LM0ISR + pxor @XMM[9], @XMM[0] # xor with round0 key + pxor @XMM[9], @XMM[1] + pshufb @XMM[8], @XMM[0] + pxor @XMM[9], @XMM[2] + pshufb @XMM[8], @XMM[1] + pxor @XMM[9], @XMM[3] + pshufb @XMM[8], @XMM[2] + pxor @XMM[9], @XMM[4] + pshufb @XMM[8], @XMM[3] + pxor @XMM[9], @XMM[5] + pshufb @XMM[8], @XMM[4] + pxor @XMM[9], @XMM[6] + pshufb @XMM[8], @XMM[5] + pxor @XMM[9], @XMM[7] + pshufb @XMM[8], @XMM[6] + pshufb @XMM[8], @XMM[7] +___ + &bitslice (@XMM[0..7, 8..11]); +$code.=<<___; + dec $rounds + jmp .Ldec_sbox +.align 16 +.Ldec_loop: +___ + &ShiftRows (@XMM[0..7, 8]); +$code.=".Ldec_sbox:\n"; + &InvSbox (@XMM[0..7, 8..15]); +$code.=<<___; + dec $rounds + jl .Ldec_done +___ + &InvMixColumns (@XMM[0,1,6,4,2,7,3,5, 8..15]); +$code.=<<___; + movdqa -0x10($const), @XMM[8] # .LISR + jnz .Ldec_loop + movdqa -0x20($const), @XMM[8] # .LISRM0 + jmp .Ldec_loop +.align 16 +.Ldec_done: +___ + &bitslice (@XMM[0,1,6,4,2,7,3,5, 8..11]); +$code.=<<___; + movdqa ($key), @XMM[8] # last round key + pxor @XMM[8], @XMM[6] + pxor @XMM[8], @XMM[4] + pxor @XMM[8], @XMM[2] + pxor @XMM[8], @XMM[7] + pxor @XMM[8], @XMM[3] + pxor @XMM[8], @XMM[5] + pxor @XMM[8], @XMM[0] + pxor @XMM[8], @XMM[1] + ret +.size _bsaes_decrypt8,.-_bsaes_decrypt8 +___ +} +{ +my ($out,$inp,$rounds,$const)=("%rax","%rcx","%r10d","%r11"); + +sub bitslice_key { +my @x=reverse(@_[0..7]); +my ($bs0,$bs1,$bs2,$t2,$t3)=@_[8..12]; + + &swapmove (@x[0,1],1,$bs0,$t2,$t3); +$code.=<<___; + #&swapmove(@x[2,3],1,$t0,$t2,$t3); + movdqa @x[0], @x[2] + movdqa @x[1], @x[3] +___ + #&swapmove2x(@x[4,5,6,7],1,$t0,$t2,$t3); + + &swapmove2x (@x[0,2,1,3],2,$bs1,$t2,$t3); +$code.=<<___; + #&swapmove2x(@x[4,6,5,7],2,$t1,$t2,$t3); + movdqa @x[0], @x[4] + movdqa @x[2], @x[6] + movdqa @x[1], @x[5] + movdqa @x[3], @x[7] +___ + &swapmove2x (@x[0,4,1,5],4,$bs2,$t2,$t3); + &swapmove2x (@x[2,6,3,7],4,$bs2,$t2,$t3); +} + +$code.=<<___; +.type _bsaes_key_convert,\@abi-omnipotent +.align 16 +_bsaes_key_convert: + lea .Lmasks(%rip), $const + movdqu ($inp), %xmm7 # load round 0 key + lea 0x10($inp), $inp + movdqa 0x00($const), %xmm0 # 0x01... + movdqa 0x10($const), %xmm1 # 0x02... + movdqa 0x20($const), %xmm2 # 0x04... + movdqa 0x30($const), %xmm3 # 0x08... + movdqa 0x40($const), %xmm4 # .LM0 + pcmpeqd %xmm5, %xmm5 # .LNOT + + movdqu ($inp), %xmm6 # load round 1 key + movdqa %xmm7, ($out) # save round 0 key + lea 0x10($out), $out + dec $rounds + jmp .Lkey_loop +.align 16 +.Lkey_loop: + pshufb %xmm4, %xmm6 # .LM0 + + movdqa %xmm0, %xmm8 + movdqa %xmm1, %xmm9 + + pand %xmm6, %xmm8 + pand %xmm6, %xmm9 + movdqa %xmm2, %xmm10 + pcmpeqb %xmm0, %xmm8 + psllq \$4, %xmm0 # 0x10... + movdqa %xmm3, %xmm11 + pcmpeqb %xmm1, %xmm9 + psllq \$4, %xmm1 # 0x20... + + pand %xmm6, %xmm10 + pand %xmm6, %xmm11 + movdqa %xmm0, %xmm12 + pcmpeqb %xmm2, %xmm10 + psllq \$4, %xmm2 # 0x40... + movdqa %xmm1, %xmm13 + pcmpeqb %xmm3, %xmm11 + psllq \$4, %xmm3 # 0x80... + + movdqa %xmm2, %xmm14 + movdqa %xmm3, %xmm15 + pxor %xmm5, %xmm8 # "pnot" + pxor %xmm5, %xmm9 + + pand %xmm6, %xmm12 + pand %xmm6, %xmm13 + movdqa %xmm8, 0x00($out) # write bit-sliced round key + pcmpeqb %xmm0, %xmm12 + psrlq \$4, %xmm0 # 0x01... + movdqa %xmm9, 0x10($out) + pcmpeqb %xmm1, %xmm13 + psrlq \$4, %xmm1 # 0x02... + lea 0x10($inp), $inp + + pand %xmm6, %xmm14 + pand %xmm6, %xmm15 + movdqa %xmm10, 0x20($out) + pcmpeqb %xmm2, %xmm14 + psrlq \$4, %xmm2 # 0x04... + movdqa %xmm11, 0x30($out) + pcmpeqb %xmm3, %xmm15 + psrlq \$4, %xmm3 # 0x08... + movdqu ($inp), %xmm6 # load next round key + + pxor %xmm5, %xmm13 # "pnot" + pxor %xmm5, %xmm14 + movdqa %xmm12, 0x40($out) + movdqa %xmm13, 0x50($out) + movdqa %xmm14, 0x60($out) + movdqa %xmm15, 0x70($out) + lea 0x80($out),$out + dec $rounds + jnz .Lkey_loop + + movdqa 0x50($const), %xmm7 # .L63 + #movdqa %xmm6, ($out) # don't save last round key + ret +.size _bsaes_key_convert,.-_bsaes_key_convert +___ +} + +if (0 && !$win64) { # following four functions are unsupported interface + # used for benchmarking... +$code.=<<___; +.globl bsaes_enc_key_convert +.type bsaes_enc_key_convert,\@function,2 +.align 16 +bsaes_enc_key_convert: + mov 240($inp),%r10d # pass rounds + mov $inp,%rcx # pass key + mov $out,%rax # pass key schedule + call _bsaes_key_convert + pxor %xmm6,%xmm7 # fix up last round key + movdqa %xmm7,(%rax) # save last round key + ret +.size bsaes_enc_key_convert,.-bsaes_enc_key_convert + +.globl bsaes_encrypt_128 +.type bsaes_encrypt_128,\@function,4 +.align 16 +bsaes_encrypt_128: +.Lenc128_loop: + movdqu 0x00($inp), @XMM[0] # load input + movdqu 0x10($inp), @XMM[1] + movdqu 0x20($inp), @XMM[2] + movdqu 0x30($inp), @XMM[3] + movdqu 0x40($inp), @XMM[4] + movdqu 0x50($inp), @XMM[5] + movdqu 0x60($inp), @XMM[6] + movdqu 0x70($inp), @XMM[7] + mov $key, %rax # pass the $key + lea 0x80($inp), $inp + mov \$10,%r10d + + call _bsaes_encrypt8 + + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[2], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + sub \$0x80,$len + ja .Lenc128_loop + ret +.size bsaes_encrypt_128,.-bsaes_encrypt_128 + +.globl bsaes_dec_key_convert +.type bsaes_dec_key_convert,\@function,2 +.align 16 +bsaes_dec_key_convert: + mov 240($inp),%r10d # pass rounds + mov $inp,%rcx # pass key + mov $out,%rax # pass key schedule + call _bsaes_key_convert + pxor ($out),%xmm7 # fix up round 0 key + movdqa %xmm6,(%rax) # save last round key + movdqa %xmm7,($out) + ret +.size bsaes_dec_key_convert,.-bsaes_dec_key_convert + +.globl bsaes_decrypt_128 +.type bsaes_decrypt_128,\@function,4 +.align 16 +bsaes_decrypt_128: +.Ldec128_loop: + movdqu 0x00($inp), @XMM[0] # load input + movdqu 0x10($inp), @XMM[1] + movdqu 0x20($inp), @XMM[2] + movdqu 0x30($inp), @XMM[3] + movdqu 0x40($inp), @XMM[4] + movdqu 0x50($inp), @XMM[5] + movdqu 0x60($inp), @XMM[6] + movdqu 0x70($inp), @XMM[7] + mov $key, %rax # pass the $key + lea 0x80($inp), $inp + mov \$10,%r10d + + call _bsaes_decrypt8 + + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + sub \$0x80,$len + ja .Ldec128_loop + ret +.size bsaes_decrypt_128,.-bsaes_decrypt_128 +___ +} +{ +###################################################################### +# +# OpenSSL interface +# +my ($arg1,$arg2,$arg3,$arg4,$arg5,$arg6)=$win64 ? ("%rcx","%rdx","%r8","%r9","%r10","%r11d") + : ("%rdi","%rsi","%rdx","%rcx","%r8","%r9d"); +my ($inp,$out,$len,$key)=("%r12","%r13","%r14","%r15"); + +if ($ecb) { +$code.=<<___; +.globl bsaes_ecb_encrypt_blocks +.type bsaes_ecb_encrypt_blocks,\@abi-omnipotent +.align 16 +bsaes_ecb_encrypt_blocks: + mov %rsp, %rax +.Lecb_enc_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp),%rsp +___ +$code.=<<___ if ($win64); + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lecb_enc_body: +___ +$code.=<<___; + mov %rsp,%rbp # backup %rsp + mov 240($arg4),%eax # rounds + mov $arg1,$inp # backup arguments + mov $arg2,$out + mov $arg3,$len + mov $arg4,$key + cmp \$8,$arg3 + jb .Lecb_enc_short + + mov %eax,%ebx # backup rounds + shl \$7,%rax # 128 bytes per inner round key + sub \$`128-32`,%rax # size of bit-sliced key schedule + sub %rax,%rsp + mov %rsp,%rax # pass key schedule + mov $key,%rcx # pass key + mov %ebx,%r10d # pass rounds + call _bsaes_key_convert + pxor %xmm6,%xmm7 # fix up last round key + movdqa %xmm7,(%rax) # save last round key + + sub \$8,$len +.Lecb_enc_loop: + movdqu 0x00($inp), @XMM[0] # load input + movdqu 0x10($inp), @XMM[1] + movdqu 0x20($inp), @XMM[2] + movdqu 0x30($inp), @XMM[3] + movdqu 0x40($inp), @XMM[4] + movdqu 0x50($inp), @XMM[5] + mov %rsp, %rax # pass key schedule + movdqu 0x60($inp), @XMM[6] + mov %ebx,%r10d # pass rounds + movdqu 0x70($inp), @XMM[7] + lea 0x80($inp), $inp + + call _bsaes_encrypt8 + + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[2], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + sub \$8,$len + jnc .Lecb_enc_loop + + add \$8,$len + jz .Lecb_enc_done + + movdqu 0x00($inp), @XMM[0] # load input + mov %rsp, %rax # pass key schedule + mov %ebx,%r10d # pass rounds + cmp \$2,$len + jb .Lecb_enc_one + movdqu 0x10($inp), @XMM[1] + je .Lecb_enc_two + movdqu 0x20($inp), @XMM[2] + cmp \$4,$len + jb .Lecb_enc_three + movdqu 0x30($inp), @XMM[3] + je .Lecb_enc_four + movdqu 0x40($inp), @XMM[4] + cmp \$6,$len + jb .Lecb_enc_five + movdqu 0x50($inp), @XMM[5] + je .Lecb_enc_six + movdqu 0x60($inp), @XMM[6] + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[2], 0x60($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_six: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + movdqu @XMM[7], 0x50($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_five: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_four: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_three: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_two: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_one: + call _bsaes_encrypt8 + movdqu @XMM[0], 0x00($out) # write output + jmp .Lecb_enc_done +.align 16 +.Lecb_enc_short: + lea ($inp), $arg1 + lea ($out), $arg2 + lea ($key), $arg3 + call asm_AES_encrypt + lea 16($inp), $inp + lea 16($out), $out + dec $len + jnz .Lecb_enc_short + +.Lecb_enc_done: + lea (%rsp),%rax + pxor %xmm0, %xmm0 +.Lecb_enc_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + jb .Lecb_enc_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lecb_enc_epilogue: + ret +.size bsaes_ecb_encrypt_blocks,.-bsaes_ecb_encrypt_blocks + +.globl bsaes_ecb_decrypt_blocks +.type bsaes_ecb_decrypt_blocks,\@abi-omnipotent +.align 16 +bsaes_ecb_decrypt_blocks: + mov %rsp, %rax +.Lecb_dec_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp),%rsp +___ +$code.=<<___ if ($win64); + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lecb_dec_body: +___ +$code.=<<___; + mov %rsp,%rbp # backup %rsp + mov 240($arg4),%eax # rounds + mov $arg1,$inp # backup arguments + mov $arg2,$out + mov $arg3,$len + mov $arg4,$key + cmp \$8,$arg3 + jb .Lecb_dec_short + + mov %eax,%ebx # backup rounds + shl \$7,%rax # 128 bytes per inner round key + sub \$`128-32`,%rax # size of bit-sliced key schedule + sub %rax,%rsp + mov %rsp,%rax # pass key schedule + mov $key,%rcx # pass key + mov %ebx,%r10d # pass rounds + call _bsaes_key_convert + pxor (%rsp),%xmm7 # fix up 0 round key + movdqa %xmm6,(%rax) # save last round key + movdqa %xmm7,(%rsp) + + sub \$8,$len +.Lecb_dec_loop: + movdqu 0x00($inp), @XMM[0] # load input + movdqu 0x10($inp), @XMM[1] + movdqu 0x20($inp), @XMM[2] + movdqu 0x30($inp), @XMM[3] + movdqu 0x40($inp), @XMM[4] + movdqu 0x50($inp), @XMM[5] + mov %rsp, %rax # pass key schedule + movdqu 0x60($inp), @XMM[6] + mov %ebx,%r10d # pass rounds + movdqu 0x70($inp), @XMM[7] + lea 0x80($inp), $inp + + call _bsaes_decrypt8 + + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + sub \$8,$len + jnc .Lecb_dec_loop + + add \$8,$len + jz .Lecb_dec_done + + movdqu 0x00($inp), @XMM[0] # load input + mov %rsp, %rax # pass key schedule + mov %ebx,%r10d # pass rounds + cmp \$2,$len + jb .Lecb_dec_one + movdqu 0x10($inp), @XMM[1] + je .Lecb_dec_two + movdqu 0x20($inp), @XMM[2] + cmp \$4,$len + jb .Lecb_dec_three + movdqu 0x30($inp), @XMM[3] + je .Lecb_dec_four + movdqu 0x40($inp), @XMM[4] + cmp \$6,$len + jb .Lecb_dec_five + movdqu 0x50($inp), @XMM[5] + je .Lecb_dec_six + movdqu 0x60($inp), @XMM[6] + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_six: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_five: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_four: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_three: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_two: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_one: + call _bsaes_decrypt8 + movdqu @XMM[0], 0x00($out) # write output + jmp .Lecb_dec_done +.align 16 +.Lecb_dec_short: + lea ($inp), $arg1 + lea ($out), $arg2 + lea ($key), $arg3 + call asm_AES_decrypt + lea 16($inp), $inp + lea 16($out), $out + dec $len + jnz .Lecb_dec_short + +.Lecb_dec_done: + lea (%rsp),%rax + pxor %xmm0, %xmm0 +.Lecb_dec_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + jb .Lecb_dec_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lecb_dec_epilogue: + ret +.size bsaes_ecb_decrypt_blocks,.-bsaes_ecb_decrypt_blocks +___ +} +$code.=<<___; +.extern asm_AES_cbc_encrypt +.globl bsaes_cbc_encrypt +.type bsaes_cbc_encrypt,\@abi-omnipotent +.align 16 +bsaes_cbc_encrypt: +___ +$code.=<<___ if ($win64); + mov 48(%rsp),$arg6 # pull direction flag +___ +$code.=<<___; + cmp \$0,$arg6 + jne asm_AES_cbc_encrypt + cmp \$128,$arg3 + jb asm_AES_cbc_encrypt + + mov %rsp, %rax +.Lcbc_dec_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp), %rsp +___ +$code.=<<___ if ($win64); + mov 0xa0(%rsp),$arg5 # pull ivp + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lcbc_dec_body: +___ +$code.=<<___; + mov %rsp, %rbp # backup %rsp + mov 240($arg4), %eax # rounds + mov $arg1, $inp # backup arguments + mov $arg2, $out + mov $arg3, $len + mov $arg4, $key + mov $arg5, %rbx + shr \$4, $len # bytes to blocks + + mov %eax, %edx # rounds + shl \$7, %rax # 128 bytes per inner round key + sub \$`128-32`, %rax # size of bit-sliced key schedule + sub %rax, %rsp + + mov %rsp, %rax # pass key schedule + mov $key, %rcx # pass key + mov %edx, %r10d # pass rounds + call _bsaes_key_convert + pxor (%rsp),%xmm7 # fix up 0 round key + movdqa %xmm6,(%rax) # save last round key + movdqa %xmm7,(%rsp) + + movdqu (%rbx), @XMM[15] # load IV + sub \$8,$len +.Lcbc_dec_loop: + movdqu 0x00($inp), @XMM[0] # load input + movdqu 0x10($inp), @XMM[1] + movdqu 0x20($inp), @XMM[2] + movdqu 0x30($inp), @XMM[3] + movdqu 0x40($inp), @XMM[4] + movdqu 0x50($inp), @XMM[5] + mov %rsp, %rax # pass key schedule + movdqu 0x60($inp), @XMM[6] + mov %edx,%r10d # pass rounds + movdqu 0x70($inp), @XMM[7] + movdqa @XMM[15], 0x20(%rbp) # put aside IV + + call _bsaes_decrypt8 + + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[10] + pxor @XMM[9], @XMM[6] + movdqu 0x30($inp), @XMM[11] + pxor @XMM[10], @XMM[4] + movdqu 0x40($inp), @XMM[12] + pxor @XMM[11], @XMM[2] + movdqu 0x50($inp), @XMM[13] + pxor @XMM[12], @XMM[7] + movdqu 0x60($inp), @XMM[14] + pxor @XMM[13], @XMM[3] + movdqu 0x70($inp), @XMM[15] # IV + pxor @XMM[14], @XMM[5] + movdqu @XMM[0], 0x00($out) # write output + lea 0x80($inp), $inp + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + sub \$8,$len + jnc .Lcbc_dec_loop + + add \$8,$len + jz .Lcbc_dec_done + + movdqu 0x00($inp), @XMM[0] # load input + mov %rsp, %rax # pass key schedule + mov %edx, %r10d # pass rounds + cmp \$2,$len + jb .Lcbc_dec_one + movdqu 0x10($inp), @XMM[1] + je .Lcbc_dec_two + movdqu 0x20($inp), @XMM[2] + cmp \$4,$len + jb .Lcbc_dec_three + movdqu 0x30($inp), @XMM[3] + je .Lcbc_dec_four + movdqu 0x40($inp), @XMM[4] + cmp \$6,$len + jb .Lcbc_dec_five + movdqu 0x50($inp), @XMM[5] + je .Lcbc_dec_six + movdqu 0x60($inp), @XMM[6] + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[10] + pxor @XMM[9], @XMM[6] + movdqu 0x30($inp), @XMM[11] + pxor @XMM[10], @XMM[4] + movdqu 0x40($inp), @XMM[12] + pxor @XMM[11], @XMM[2] + movdqu 0x50($inp), @XMM[13] + pxor @XMM[12], @XMM[7] + movdqu 0x60($inp), @XMM[15] # IV + pxor @XMM[13], @XMM[3] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_six: + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[10] + pxor @XMM[9], @XMM[6] + movdqu 0x30($inp), @XMM[11] + pxor @XMM[10], @XMM[4] + movdqu 0x40($inp), @XMM[12] + pxor @XMM[11], @XMM[2] + movdqu 0x50($inp), @XMM[15] # IV + pxor @XMM[12], @XMM[7] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_five: + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[10] + pxor @XMM[9], @XMM[6] + movdqu 0x30($inp), @XMM[11] + pxor @XMM[10], @XMM[4] + movdqu 0x40($inp), @XMM[15] # IV + pxor @XMM[11], @XMM[2] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_four: + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[10] + pxor @XMM[9], @XMM[6] + movdqu 0x30($inp), @XMM[15] # IV + pxor @XMM[10], @XMM[4] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_three: + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[9] + pxor @XMM[8], @XMM[1] + movdqu 0x20($inp), @XMM[15] # IV + pxor @XMM[9], @XMM[6] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_two: + movdqa @XMM[15], 0x20(%rbp) # put aside IV + call _bsaes_decrypt8 + pxor 0x20(%rbp), @XMM[0] # ^= IV + movdqu 0x00($inp), @XMM[8] # re-load input + movdqu 0x10($inp), @XMM[15] # IV + pxor @XMM[8], @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + jmp .Lcbc_dec_done +.align 16 +.Lcbc_dec_one: + lea ($inp), $arg1 + lea 0x20(%rbp), $arg2 # buffer output + lea ($key), $arg3 + call asm_AES_decrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[15] # ^= IV + movdqu @XMM[15], ($out) # write output + movdqa @XMM[0], @XMM[15] # IV + +.Lcbc_dec_done: + movdqu @XMM[15], (%rbx) # return IV + lea (%rsp), %rax + pxor %xmm0, %xmm0 +.Lcbc_dec_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + ja .Lcbc_dec_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lcbc_dec_epilogue: + ret +.size bsaes_cbc_encrypt,.-bsaes_cbc_encrypt + +.globl bsaes_ctr32_encrypt_blocks +.type bsaes_ctr32_encrypt_blocks,\@abi-omnipotent +.align 16 +bsaes_ctr32_encrypt_blocks: + mov %rsp, %rax +.Lctr_enc_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp), %rsp +___ +$code.=<<___ if ($win64); + mov 0xa0(%rsp),$arg5 # pull ivp + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lctr_enc_body: +___ +$code.=<<___; + mov %rsp, %rbp # backup %rsp + movdqu ($arg5), %xmm0 # load counter + mov 240($arg4), %eax # rounds + mov $arg1, $inp # backup arguments + mov $arg2, $out + mov $arg3, $len + mov $arg4, $key + movdqa %xmm0, 0x20(%rbp) # copy counter + cmp \$8, $arg3 + jb .Lctr_enc_short + + mov %eax, %ebx # rounds + shl \$7, %rax # 128 bytes per inner round key + sub \$`128-32`, %rax # size of bit-sliced key schedule + sub %rax, %rsp + + mov %rsp, %rax # pass key schedule + mov $key, %rcx # pass key + mov %ebx, %r10d # pass rounds + call _bsaes_key_convert + pxor %xmm6,%xmm7 # fix up last round key + movdqa %xmm7,(%rax) # save last round key + + movdqa (%rsp), @XMM[9] # load round0 key + lea .LADD1(%rip), %r11 + movdqa 0x20(%rbp), @XMM[0] # counter copy + movdqa -0x20(%r11), @XMM[8] # .LSWPUP + pshufb @XMM[8], @XMM[9] # byte swap upper part + pshufb @XMM[8], @XMM[0] + movdqa @XMM[9], (%rsp) # save adjusted round0 key + jmp .Lctr_enc_loop +.align 16 +.Lctr_enc_loop: + movdqa @XMM[0], 0x20(%rbp) # save counter + movdqa @XMM[0], @XMM[1] # prepare 8 counter values + movdqa @XMM[0], @XMM[2] + paddd 0x00(%r11), @XMM[1] # .LADD1 + movdqa @XMM[0], @XMM[3] + paddd 0x10(%r11), @XMM[2] # .LADD2 + movdqa @XMM[0], @XMM[4] + paddd 0x20(%r11), @XMM[3] # .LADD3 + movdqa @XMM[0], @XMM[5] + paddd 0x30(%r11), @XMM[4] # .LADD4 + movdqa @XMM[0], @XMM[6] + paddd 0x40(%r11), @XMM[5] # .LADD5 + movdqa @XMM[0], @XMM[7] + paddd 0x50(%r11), @XMM[6] # .LADD6 + paddd 0x60(%r11), @XMM[7] # .LADD7 + + # Borrow prologue from _bsaes_encrypt8 to use the opportunity + # to flip byte order in 32-bit counter + movdqa (%rsp), @XMM[9] # round 0 key + lea 0x10(%rsp), %rax # pass key schedule + movdqa -0x10(%r11), @XMM[8] # .LSWPUPM0SR + pxor @XMM[9], @XMM[0] # xor with round0 key + pxor @XMM[9], @XMM[1] + pshufb @XMM[8], @XMM[0] + pxor @XMM[9], @XMM[2] + pshufb @XMM[8], @XMM[1] + pxor @XMM[9], @XMM[3] + pshufb @XMM[8], @XMM[2] + pxor @XMM[9], @XMM[4] + pshufb @XMM[8], @XMM[3] + pxor @XMM[9], @XMM[5] + pshufb @XMM[8], @XMM[4] + pxor @XMM[9], @XMM[6] + pshufb @XMM[8], @XMM[5] + pxor @XMM[9], @XMM[7] + pshufb @XMM[8], @XMM[6] + lea .LBS0(%rip), %r11 # constants table + pshufb @XMM[8], @XMM[7] + mov %ebx,%r10d # pass rounds + + call _bsaes_encrypt8_bitslice + + sub \$8,$len + jc .Lctr_enc_loop_done + + movdqu 0x00($inp), @XMM[8] # load input + movdqu 0x10($inp), @XMM[9] + movdqu 0x20($inp), @XMM[10] + movdqu 0x30($inp), @XMM[11] + movdqu 0x40($inp), @XMM[12] + movdqu 0x50($inp), @XMM[13] + movdqu 0x60($inp), @XMM[14] + movdqu 0x70($inp), @XMM[15] + lea 0x80($inp),$inp + pxor @XMM[0], @XMM[8] + movdqa 0x20(%rbp), @XMM[0] # load counter + pxor @XMM[9], @XMM[1] + movdqu @XMM[8], 0x00($out) # write output + pxor @XMM[10], @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor @XMM[11], @XMM[6] + movdqu @XMM[4], 0x20($out) + pxor @XMM[12], @XMM[3] + movdqu @XMM[6], 0x30($out) + pxor @XMM[13], @XMM[7] + movdqu @XMM[3], 0x40($out) + pxor @XMM[14], @XMM[2] + movdqu @XMM[7], 0x50($out) + pxor @XMM[15], @XMM[5] + movdqu @XMM[2], 0x60($out) + lea .LADD1(%rip), %r11 + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + paddd 0x70(%r11), @XMM[0] # .LADD8 + jnz .Lctr_enc_loop + + jmp .Lctr_enc_done +.align 16 +.Lctr_enc_loop_done: + add \$8, $len + movdqu 0x00($inp), @XMM[8] # load input + pxor @XMM[8], @XMM[0] + movdqu @XMM[0], 0x00($out) # write output + cmp \$2,$len + jb .Lctr_enc_done + movdqu 0x10($inp), @XMM[9] + pxor @XMM[9], @XMM[1] + movdqu @XMM[1], 0x10($out) + je .Lctr_enc_done + movdqu 0x20($inp), @XMM[10] + pxor @XMM[10], @XMM[4] + movdqu @XMM[4], 0x20($out) + cmp \$4,$len + jb .Lctr_enc_done + movdqu 0x30($inp), @XMM[11] + pxor @XMM[11], @XMM[6] + movdqu @XMM[6], 0x30($out) + je .Lctr_enc_done + movdqu 0x40($inp), @XMM[12] + pxor @XMM[12], @XMM[3] + movdqu @XMM[3], 0x40($out) + cmp \$6,$len + jb .Lctr_enc_done + movdqu 0x50($inp), @XMM[13] + pxor @XMM[13], @XMM[7] + movdqu @XMM[7], 0x50($out) + je .Lctr_enc_done + movdqu 0x60($inp), @XMM[14] + pxor @XMM[14], @XMM[2] + movdqu @XMM[2], 0x60($out) + jmp .Lctr_enc_done + +.align 16 +.Lctr_enc_short: + lea 0x20(%rbp), $arg1 + lea 0x30(%rbp), $arg2 + lea ($key), $arg3 + call asm_AES_encrypt + movdqu ($inp), @XMM[1] + lea 16($inp), $inp + mov 0x2c(%rbp), %eax # load 32-bit counter + bswap %eax + pxor 0x30(%rbp), @XMM[1] + inc %eax # increment + movdqu @XMM[1], ($out) + bswap %eax + lea 16($out), $out + mov %eax, 0x2c(%rsp) # save 32-bit counter + dec $len + jnz .Lctr_enc_short + +.Lctr_enc_done: + lea (%rsp), %rax + pxor %xmm0, %xmm0 +.Lctr_enc_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + ja .Lctr_enc_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lctr_enc_epilogue: + ret +.size bsaes_ctr32_encrypt_blocks,.-bsaes_ctr32_encrypt_blocks +___ +###################################################################### +# void bsaes_xts_[en|de]crypt(const char *inp,char *out,size_t len, +# const AES_KEY *key1, const AES_KEY *key2, +# const unsigned char iv[16]); +# +my ($twmask,$twres,$twtmp)=@XMM[13..15]; +$arg6=~s/d$//; + +$code.=<<___; +.globl bsaes_xts_encrypt +.type bsaes_xts_encrypt,\@abi-omnipotent +.align 16 +bsaes_xts_encrypt: + mov %rsp, %rax +.Lxts_enc_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp), %rsp +___ +$code.=<<___ if ($win64); + mov 0xa0(%rsp),$arg5 # pull key2 + mov 0xa8(%rsp),$arg6 # pull ivp + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lxts_enc_body: +___ +$code.=<<___; + mov %rsp, %rbp # backup %rsp + mov $arg1, $inp # backup arguments + mov $arg2, $out + mov $arg3, $len + mov $arg4, $key + + lea ($arg6), $arg1 + lea 0x20(%rbp), $arg2 + lea ($arg5), $arg3 + call asm_AES_encrypt # generate initial tweak + + mov 240($key), %eax # rounds + mov $len, %rbx # backup $len + + mov %eax, %edx # rounds + shl \$7, %rax # 128 bytes per inner round key + sub \$`128-32`, %rax # size of bit-sliced key schedule + sub %rax, %rsp + + mov %rsp, %rax # pass key schedule + mov $key, %rcx # pass key + mov %edx, %r10d # pass rounds + call _bsaes_key_convert + pxor %xmm6, %xmm7 # fix up last round key + movdqa %xmm7, (%rax) # save last round key + + and \$-16, $len + sub \$0x80, %rsp # place for tweak[8] + movdqa 0x20(%rbp), @XMM[7] # initial tweak + + pxor $twtmp, $twtmp + movdqa .Lxts_magic(%rip), $twmask + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + + sub \$0x80, $len + jc .Lxts_enc_short + jmp .Lxts_enc_loop + +.align 16 +.Lxts_enc_loop: +___ + for ($i=0;$i<7;$i++) { + $code.=<<___; + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + movdqa @XMM[7], @XMM[$i] + movdqa @XMM[7], `0x10*$i`(%rsp)# save tweak[$i] + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] +___ + $code.=<<___ if ($i>=1); + movdqu `0x10*($i-1)`($inp), @XMM[8+$i-1] +___ + $code.=<<___ if ($i>=2); + pxor @XMM[8+$i-2], @XMM[$i-2]# input[] ^ tweak[] +___ + } +$code.=<<___; + movdqu 0x60($inp), @XMM[8+6] + pxor @XMM[8+5], @XMM[5] + movdqu 0x70($inp), @XMM[8+7] + lea 0x80($inp), $inp + movdqa @XMM[7], 0x70(%rsp) + pxor @XMM[8+6], @XMM[6] + lea 0x80(%rsp), %rax # pass key schedule + pxor @XMM[8+7], @XMM[7] + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[6] + movdqu @XMM[4], 0x20($out) + pxor 0x40(%rsp), @XMM[3] + movdqu @XMM[6], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[3], 0x40($out) + pxor 0x60(%rsp), @XMM[2] + movdqu @XMM[7], 0x50($out) + pxor 0x70(%rsp), @XMM[5] + movdqu @XMM[2], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + + movdqa 0x70(%rsp), @XMM[7] # prepare next iteration tweak + pxor $twtmp, $twtmp + movdqa .Lxts_magic(%rip), $twmask + pcmpgtd @XMM[7], $twtmp + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] + + sub \$0x80,$len + jnc .Lxts_enc_loop + +.Lxts_enc_short: + add \$0x80, $len + jz .Lxts_enc_done +___ + for ($i=0;$i<7;$i++) { + $code.=<<___; + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + movdqa @XMM[7], @XMM[$i] + movdqa @XMM[7], `0x10*$i`(%rsp)# save tweak[$i] + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] +___ + $code.=<<___ if ($i>=1); + movdqu `0x10*($i-1)`($inp), @XMM[8+$i-1] + cmp \$`0x10*$i`,$len + je .Lxts_enc_$i +___ + $code.=<<___ if ($i>=2); + pxor @XMM[8+$i-2], @XMM[$i-2]# input[] ^ tweak[] +___ + } +$code.=<<___; + movdqu 0x60($inp), @XMM[8+6] + pxor @XMM[8+5], @XMM[5] + movdqa @XMM[7], 0x70(%rsp) + lea 0x70($inp), $inp + pxor @XMM[8+6], @XMM[6] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[6] + movdqu @XMM[4], 0x20($out) + pxor 0x40(%rsp), @XMM[3] + movdqu @XMM[6], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[3], 0x40($out) + pxor 0x60(%rsp), @XMM[2] + movdqu @XMM[7], 0x50($out) + movdqu @XMM[2], 0x60($out) + lea 0x70($out), $out + + movdqa 0x70(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_6: + pxor @XMM[8+4], @XMM[4] + lea 0x60($inp), $inp + pxor @XMM[8+5], @XMM[5] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[6] + movdqu @XMM[4], 0x20($out) + pxor 0x40(%rsp), @XMM[3] + movdqu @XMM[6], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[3], 0x40($out) + movdqu @XMM[7], 0x50($out) + lea 0x60($out), $out + + movdqa 0x60(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_5: + pxor @XMM[8+3], @XMM[3] + lea 0x50($inp), $inp + pxor @XMM[8+4], @XMM[4] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[6] + movdqu @XMM[4], 0x20($out) + pxor 0x40(%rsp), @XMM[3] + movdqu @XMM[6], 0x30($out) + movdqu @XMM[3], 0x40($out) + lea 0x50($out), $out + + movdqa 0x50(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_4: + pxor @XMM[8+2], @XMM[2] + lea 0x40($inp), $inp + pxor @XMM[8+3], @XMM[3] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[6] + movdqu @XMM[4], 0x20($out) + movdqu @XMM[6], 0x30($out) + lea 0x40($out), $out + + movdqa 0x40(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_3: + pxor @XMM[8+1], @XMM[1] + lea 0x30($inp), $inp + pxor @XMM[8+2], @XMM[2] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[4] + movdqu @XMM[1], 0x10($out) + movdqu @XMM[4], 0x20($out) + lea 0x30($out), $out + + movdqa 0x30(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_2: + pxor @XMM[8+0], @XMM[0] + lea 0x20($inp), $inp + pxor @XMM[8+1], @XMM[1] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_encrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + lea 0x20($out), $out + + movdqa 0x20(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_enc_done +.align 16 +.Lxts_enc_1: + pxor @XMM[0], @XMM[8] + lea 0x10($inp), $inp + movdqa @XMM[8], 0x20(%rbp) + lea 0x20(%rbp), $arg1 + lea 0x20(%rbp), $arg2 + lea ($key), $arg3 + call asm_AES_encrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[0] # ^= tweak[] + #pxor @XMM[8], @XMM[0] + #lea 0x80(%rsp), %rax # pass key schedule + #mov %edx, %r10d # pass rounds + #call _bsaes_encrypt8 + #pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + movdqu @XMM[0], 0x00($out) # write output + lea 0x10($out), $out + + movdqa 0x10(%rsp), @XMM[7] # next iteration tweak + +.Lxts_enc_done: + and \$15, %ebx + jz .Lxts_enc_ret + mov $out, %rdx + +.Lxts_enc_steal: + movzb ($inp), %eax + movzb -16(%rdx), %ecx + lea 1($inp), $inp + mov %al, -16(%rdx) + mov %cl, 0(%rdx) + lea 1(%rdx), %rdx + sub \$1,%ebx + jnz .Lxts_enc_steal + + movdqu -16($out), @XMM[0] + lea 0x20(%rbp), $arg1 + pxor @XMM[7], @XMM[0] + lea 0x20(%rbp), $arg2 + movdqa @XMM[0], 0x20(%rbp) + lea ($key), $arg3 + call asm_AES_encrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[7] + movdqu @XMM[7], -16($out) + +.Lxts_enc_ret: + lea (%rsp), %rax + pxor %xmm0, %xmm0 +.Lxts_enc_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + ja .Lxts_enc_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lxts_enc_epilogue: + ret +.size bsaes_xts_encrypt,.-bsaes_xts_encrypt + +.globl bsaes_xts_decrypt +.type bsaes_xts_decrypt,\@abi-omnipotent +.align 16 +bsaes_xts_decrypt: + mov %rsp, %rax +.Lxts_dec_prologue: + push %rbp + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + lea -0x48(%rsp), %rsp +___ +$code.=<<___ if ($win64); + mov 0xa0(%rsp),$arg5 # pull key2 + mov 0xa8(%rsp),$arg6 # pull ivp + lea -0xa0(%rsp), %rsp + movaps %xmm6, 0x40(%rsp) + movaps %xmm7, 0x50(%rsp) + movaps %xmm8, 0x60(%rsp) + movaps %xmm9, 0x70(%rsp) + movaps %xmm10, 0x80(%rsp) + movaps %xmm11, 0x90(%rsp) + movaps %xmm12, 0xa0(%rsp) + movaps %xmm13, 0xb0(%rsp) + movaps %xmm14, 0xc0(%rsp) + movaps %xmm15, 0xd0(%rsp) +.Lxts_dec_body: +___ +$code.=<<___; + mov %rsp, %rbp # backup %rsp + mov $arg1, $inp # backup arguments + mov $arg2, $out + mov $arg3, $len + mov $arg4, $key + + lea ($arg6), $arg1 + lea 0x20(%rbp), $arg2 + lea ($arg5), $arg3 + call asm_AES_encrypt # generate initial tweak + + mov 240($key), %eax # rounds + mov $len, %rbx # backup $len + + mov %eax, %edx # rounds + shl \$7, %rax # 128 bytes per inner round key + sub \$`128-32`, %rax # size of bit-sliced key schedule + sub %rax, %rsp + + mov %rsp, %rax # pass key schedule + mov $key, %rcx # pass key + mov %edx, %r10d # pass rounds + call _bsaes_key_convert + pxor (%rsp), %xmm7 # fix up round 0 key + movdqa %xmm6, (%rax) # save last round key + movdqa %xmm7, (%rsp) + + xor %eax, %eax # if ($len%16) len-=16; + and \$-16, $len + test \$15, %ebx + setnz %al + shl \$4, %rax + sub %rax, $len + + sub \$0x80, %rsp # place for tweak[8] + movdqa 0x20(%rbp), @XMM[7] # initial tweak + + pxor $twtmp, $twtmp + movdqa .Lxts_magic(%rip), $twmask + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + + sub \$0x80, $len + jc .Lxts_dec_short + jmp .Lxts_dec_loop + +.align 16 +.Lxts_dec_loop: +___ + for ($i=0;$i<7;$i++) { + $code.=<<___; + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + movdqa @XMM[7], @XMM[$i] + movdqa @XMM[7], `0x10*$i`(%rsp)# save tweak[$i] + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] +___ + $code.=<<___ if ($i>=1); + movdqu `0x10*($i-1)`($inp), @XMM[8+$i-1] +___ + $code.=<<___ if ($i>=2); + pxor @XMM[8+$i-2], @XMM[$i-2]# input[] ^ tweak[] +___ + } +$code.=<<___; + movdqu 0x60($inp), @XMM[8+6] + pxor @XMM[8+5], @XMM[5] + movdqu 0x70($inp), @XMM[8+7] + lea 0x80($inp), $inp + movdqa @XMM[7], 0x70(%rsp) + pxor @XMM[8+6], @XMM[6] + lea 0x80(%rsp), %rax # pass key schedule + pxor @XMM[8+7], @XMM[7] + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[4] + movdqu @XMM[6], 0x20($out) + pxor 0x40(%rsp), @XMM[2] + movdqu @XMM[4], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[2], 0x40($out) + pxor 0x60(%rsp), @XMM[3] + movdqu @XMM[7], 0x50($out) + pxor 0x70(%rsp), @XMM[5] + movdqu @XMM[3], 0x60($out) + movdqu @XMM[5], 0x70($out) + lea 0x80($out), $out + + movdqa 0x70(%rsp), @XMM[7] # prepare next iteration tweak + pxor $twtmp, $twtmp + movdqa .Lxts_magic(%rip), $twmask + pcmpgtd @XMM[7], $twtmp + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] + + sub \$0x80,$len + jnc .Lxts_dec_loop + +.Lxts_dec_short: + add \$0x80, $len + jz .Lxts_dec_done +___ + for ($i=0;$i<7;$i++) { + $code.=<<___; + pshufd \$0x13, $twtmp, $twres + pxor $twtmp, $twtmp + movdqa @XMM[7], @XMM[$i] + movdqa @XMM[7], `0x10*$i`(%rsp)# save tweak[$i] + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + pcmpgtd @XMM[7], $twtmp # broadcast upper bits + pxor $twres, @XMM[7] +___ + $code.=<<___ if ($i>=1); + movdqu `0x10*($i-1)`($inp), @XMM[8+$i-1] + cmp \$`0x10*$i`,$len + je .Lxts_dec_$i +___ + $code.=<<___ if ($i>=2); + pxor @XMM[8+$i-2], @XMM[$i-2]# input[] ^ tweak[] +___ + } +$code.=<<___; + movdqu 0x60($inp), @XMM[8+6] + pxor @XMM[8+5], @XMM[5] + movdqa @XMM[7], 0x70(%rsp) + lea 0x70($inp), $inp + pxor @XMM[8+6], @XMM[6] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[4] + movdqu @XMM[6], 0x20($out) + pxor 0x40(%rsp), @XMM[2] + movdqu @XMM[4], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[2], 0x40($out) + pxor 0x60(%rsp), @XMM[3] + movdqu @XMM[7], 0x50($out) + movdqu @XMM[3], 0x60($out) + lea 0x70($out), $out + + movdqa 0x70(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_6: + pxor @XMM[8+4], @XMM[4] + lea 0x60($inp), $inp + pxor @XMM[8+5], @XMM[5] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[4] + movdqu @XMM[6], 0x20($out) + pxor 0x40(%rsp), @XMM[2] + movdqu @XMM[4], 0x30($out) + pxor 0x50(%rsp), @XMM[7] + movdqu @XMM[2], 0x40($out) + movdqu @XMM[7], 0x50($out) + lea 0x60($out), $out + + movdqa 0x60(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_5: + pxor @XMM[8+3], @XMM[3] + lea 0x50($inp), $inp + pxor @XMM[8+4], @XMM[4] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[4] + movdqu @XMM[6], 0x20($out) + pxor 0x40(%rsp), @XMM[2] + movdqu @XMM[4], 0x30($out) + movdqu @XMM[2], 0x40($out) + lea 0x50($out), $out + + movdqa 0x50(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_4: + pxor @XMM[8+2], @XMM[2] + lea 0x40($inp), $inp + pxor @XMM[8+3], @XMM[3] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + pxor 0x30(%rsp), @XMM[4] + movdqu @XMM[6], 0x20($out) + movdqu @XMM[4], 0x30($out) + lea 0x40($out), $out + + movdqa 0x40(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_3: + pxor @XMM[8+1], @XMM[1] + lea 0x30($inp), $inp + pxor @XMM[8+2], @XMM[2] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + pxor 0x20(%rsp), @XMM[6] + movdqu @XMM[1], 0x10($out) + movdqu @XMM[6], 0x20($out) + lea 0x30($out), $out + + movdqa 0x30(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_2: + pxor @XMM[8+0], @XMM[0] + lea 0x20($inp), $inp + pxor @XMM[8+1], @XMM[1] + lea 0x80(%rsp), %rax # pass key schedule + mov %edx, %r10d # pass rounds + + call _bsaes_decrypt8 + + pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + pxor 0x10(%rsp), @XMM[1] + movdqu @XMM[0], 0x00($out) # write output + movdqu @XMM[1], 0x10($out) + lea 0x20($out), $out + + movdqa 0x20(%rsp), @XMM[7] # next iteration tweak + jmp .Lxts_dec_done +.align 16 +.Lxts_dec_1: + pxor @XMM[0], @XMM[8] + lea 0x10($inp), $inp + movdqa @XMM[8], 0x20(%rbp) + lea 0x20(%rbp), $arg1 + lea 0x20(%rbp), $arg2 + lea ($key), $arg3 + call asm_AES_decrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[0] # ^= tweak[] + #pxor @XMM[8], @XMM[0] + #lea 0x80(%rsp), %rax # pass key schedule + #mov %edx, %r10d # pass rounds + #call _bsaes_decrypt8 + #pxor 0x00(%rsp), @XMM[0] # ^= tweak[] + movdqu @XMM[0], 0x00($out) # write output + lea 0x10($out), $out + + movdqa 0x10(%rsp), @XMM[7] # next iteration tweak + +.Lxts_dec_done: + and \$15, %ebx + jz .Lxts_dec_ret + + pxor $twtmp, $twtmp + movdqa .Lxts_magic(%rip), $twmask + pcmpgtd @XMM[7], $twtmp + pshufd \$0x13, $twtmp, $twres + movdqa @XMM[7], @XMM[6] + paddq @XMM[7], @XMM[7] # psllq 1,$tweak + pand $twmask, $twres # isolate carry and residue + movdqu ($inp), @XMM[0] + pxor $twres, @XMM[7] + + lea 0x20(%rbp), $arg1 + pxor @XMM[7], @XMM[0] + lea 0x20(%rbp), $arg2 + movdqa @XMM[0], 0x20(%rbp) + lea ($key), $arg3 + call asm_AES_decrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[7] + mov $out, %rdx + movdqu @XMM[7], ($out) + +.Lxts_dec_steal: + movzb 16($inp), %eax + movzb (%rdx), %ecx + lea 1($inp), $inp + mov %al, (%rdx) + mov %cl, 16(%rdx) + lea 1(%rdx), %rdx + sub \$1,%ebx + jnz .Lxts_dec_steal + + movdqu ($out), @XMM[0] + lea 0x20(%rbp), $arg1 + pxor @XMM[6], @XMM[0] + lea 0x20(%rbp), $arg2 + movdqa @XMM[0], 0x20(%rbp) + lea ($key), $arg3 + call asm_AES_decrypt # doesn't touch %xmm + pxor 0x20(%rbp), @XMM[6] + movdqu @XMM[6], ($out) + +.Lxts_dec_ret: + lea (%rsp), %rax + pxor %xmm0, %xmm0 +.Lxts_dec_bzero: # wipe key schedule [if any] + movdqa %xmm0, 0x00(%rax) + movdqa %xmm0, 0x10(%rax) + lea 0x20(%rax), %rax + cmp %rax, %rbp + ja .Lxts_dec_bzero + + lea (%rbp),%rsp # restore %rsp +___ +$code.=<<___ if ($win64); + movaps 0x40(%rbp), %xmm6 + movaps 0x50(%rbp), %xmm7 + movaps 0x60(%rbp), %xmm8 + movaps 0x70(%rbp), %xmm9 + movaps 0x80(%rbp), %xmm10 + movaps 0x90(%rbp), %xmm11 + movaps 0xa0(%rbp), %xmm12 + movaps 0xb0(%rbp), %xmm13 + movaps 0xc0(%rbp), %xmm14 + movaps 0xd0(%rbp), %xmm15 + lea 0xa0(%rbp), %rsp +___ +$code.=<<___; + mov 0x48(%rsp), %r15 + mov 0x50(%rsp), %r14 + mov 0x58(%rsp), %r13 + mov 0x60(%rsp), %r12 + mov 0x68(%rsp), %rbx + mov 0x70(%rsp), %rax + lea 0x78(%rsp), %rsp + mov %rax, %rbp +.Lxts_dec_epilogue: + ret +.size bsaes_xts_decrypt,.-bsaes_xts_decrypt +___ +} +$code.=<<___; +.type _bsaes_const,\@object +.align 64 +_bsaes_const: +.LM0ISR: # InvShiftRows constants + .quad 0x0a0e0206070b0f03, 0x0004080c0d010509 +.LISRM0: + .quad 0x01040b0e0205080f, 0x0306090c00070a0d +.LISR: + .quad 0x0504070602010003, 0x0f0e0d0c080b0a09 +.LBS0: # bit-slice constants + .quad 0x5555555555555555, 0x5555555555555555 +.LBS1: + .quad 0x3333333333333333, 0x3333333333333333 +.LBS2: + .quad 0x0f0f0f0f0f0f0f0f, 0x0f0f0f0f0f0f0f0f +.LSR: # shiftrows constants + .quad 0x0504070600030201, 0x0f0e0d0c0a09080b +.LSRM0: + .quad 0x0304090e00050a0f, 0x01060b0c0207080d +.LM0SR: + .quad 0x0a0e02060f03070b, 0x0004080c05090d01 +.LSWPUP: # byte-swap upper dword + .quad 0x0706050403020100, 0x0c0d0e0f0b0a0908 +.LSWPUPM0SR: + .quad 0x0a0d02060c03070b, 0x0004080f05090e01 +.LADD1: # counter increment constants + .quad 0x0000000000000000, 0x0000000100000000 +.LADD2: + .quad 0x0000000000000000, 0x0000000200000000 +.LADD3: + .quad 0x0000000000000000, 0x0000000300000000 +.LADD4: + .quad 0x0000000000000000, 0x0000000400000000 +.LADD5: + .quad 0x0000000000000000, 0x0000000500000000 +.LADD6: + .quad 0x0000000000000000, 0x0000000600000000 +.LADD7: + .quad 0x0000000000000000, 0x0000000700000000 +.LADD8: + .quad 0x0000000000000000, 0x0000000800000000 +.Lxts_magic: + .long 0x87,0,1,0 +.Lmasks: + .quad 0x0101010101010101, 0x0101010101010101 + .quad 0x0202020202020202, 0x0202020202020202 + .quad 0x0404040404040404, 0x0404040404040404 + .quad 0x0808080808080808, 0x0808080808080808 +.LM0: + .quad 0x02060a0e03070b0f, 0x0004080c0105090d +.L63: + .quad 0x6363636363636363, 0x6363636363636363 +.asciz "Bit-sliced AES for x86_64/SSSE3, Emilia Käsper, Peter Schwabe, Andy Polyakov" +.align 64 +.size _bsaes_const,.-_bsaes_const +___ + +# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, +# CONTEXT *context,DISPATCHER_CONTEXT *disp) +if ($win64) { +$rec="%rcx"; +$frame="%rdx"; +$context="%r8"; +$disp="%r9"; + +$code.=<<___; +.extern __imp_RtlVirtualUnwind +.type se_handler,\@abi-omnipotent +.align 16 +se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 120($context),%rax # pull context->Rax + mov 248($context),%rbx # pull context->Rip + + mov 8($disp),%rsi # disp->ImageBase + mov 56($disp),%r11 # disp->HandlerData + + mov 0(%r11),%r10d # HandlerData[0] + lea (%rsi,%r10),%r10 # prologue label + cmp %r10,%rbx # context->Rip<prologue label + jb .Lin_prologue + + mov 152($context),%rax # pull context->Rsp + + mov 4(%r11),%r10d # HandlerData[1] + lea (%rsi,%r10),%r10 # epilogue label + cmp %r10,%rbx # context->Rip>=epilogue label + jae .Lin_prologue + + mov 160($context),%rax # pull context->Rbp + + lea 0x40(%rax),%rsi # %xmm save area + lea 512($context),%rdi # &context.Xmm6 + mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) + .long 0xa548f3fc # cld; rep movsq + lea 0xa0(%rax),%rax # adjust stack pointer + + mov 0x70(%rax),%rbp + mov 0x68(%rax),%rbx + mov 0x60(%rax),%r12 + mov 0x58(%rax),%r13 + mov 0x50(%rax),%r14 + mov 0x48(%rax),%r15 + lea 0x78(%rax),%rax # adjust stack pointer + mov %rbx,144($context) # restore context->Rbx + mov %rbp,160($context) # restore context->Rbp + mov %r12,216($context) # restore context->R12 + mov %r13,224($context) # restore context->R13 + mov %r14,232($context) # restore context->R14 + mov %r15,240($context) # restore context->R15 + +.Lin_prologue: + mov %rax,152($context) # restore context->Rsp + + mov 40($disp),%rdi # disp->ContextRecord + mov $context,%rsi # context + mov \$`1232/8`,%ecx # sizeof(CONTEXT) + .long 0xa548f3fc # cld; rep movsq + + mov $disp,%rsi + xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER + mov 8(%rsi),%rdx # arg2, disp->ImageBase + mov 0(%rsi),%r8 # arg3, disp->ControlPc + mov 16(%rsi),%r9 # arg4, disp->FunctionEntry + mov 40(%rsi),%r10 # disp->ContextRecord + lea 56(%rsi),%r11 # &disp->HandlerData + lea 24(%rsi),%r12 # &disp->EstablisherFrame + mov %r10,32(%rsp) # arg5 + mov %r11,40(%rsp) # arg6 + mov %r12,48(%rsp) # arg7 + mov %rcx,56(%rsp) # arg8, (NULL) + call *__imp_RtlVirtualUnwind(%rip) + + mov \$1,%eax # ExceptionContinueSearch + add \$64,%rsp + popfq + pop %r15 + pop %r14 + pop %r13 + pop %r12 + pop %rbp + pop %rbx + pop %rdi + pop %rsi + ret +.size se_handler,.-se_handler + +.section .pdata +.align 4 +___ +$code.=<<___ if ($ecb); + .rva .Lecb_enc_prologue + .rva .Lecb_enc_epilogue + .rva .Lecb_enc_info + + .rva .Lecb_dec_prologue + .rva .Lecb_dec_epilogue + .rva .Lecb_dec_info +___ +$code.=<<___; + .rva .Lcbc_dec_prologue + .rva .Lcbc_dec_epilogue + .rva .Lcbc_dec_info + + .rva .Lctr_enc_prologue + .rva .Lctr_enc_epilogue + .rva .Lctr_enc_info + + .rva .Lxts_enc_prologue + .rva .Lxts_enc_epilogue + .rva .Lxts_enc_info + + .rva .Lxts_dec_prologue + .rva .Lxts_dec_epilogue + .rva .Lxts_dec_info + +.section .xdata +.align 8 +___ +$code.=<<___ if ($ecb); +.Lecb_enc_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lecb_enc_body,.Lecb_enc_epilogue # HandlerData[] +.Lecb_dec_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lecb_dec_body,.Lecb_dec_epilogue # HandlerData[] +___ +$code.=<<___; +.Lcbc_dec_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lcbc_dec_body,.Lcbc_dec_epilogue # HandlerData[] +.Lctr_enc_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lctr_enc_body,.Lctr_enc_epilogue # HandlerData[] +.Lxts_enc_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lxts_enc_body,.Lxts_enc_epilogue # HandlerData[] +.Lxts_dec_info: + .byte 9,0,0,0 + .rva se_handler + .rva .Lxts_dec_body,.Lxts_dec_epilogue # HandlerData[] +___ +} + +$code =~ s/\`([^\`]*)\`/eval($1)/gem; + +print $code; + +close STDOUT; diff --git a/crypto/aes/asm/vpaes-x86.pl b/crypto/aes/asm/vpaes-x86.pl new file mode 100644 index 00000000..bacf42cf --- /dev/null +++ b/crypto/aes/asm/vpaes-x86.pl @@ -0,0 +1,902 @@ +#!/usr/bin/env perl + +###################################################################### +## Constant-time SSSE3 AES core implementation. +## version 0.1 +## +## By Mike Hamburg (Stanford University), 2009 +## Public domain. +## +## For details see http://shiftleft.org/papers/vector_aes/ and +## http://crypto.stanford.edu/vpaes/. + +###################################################################### +# September 2011. +# +# Port vpaes-x86_64.pl as 32-bit "almost" drop-in replacement for +# aes-586.pl. "Almost" refers to the fact that AES_cbc_encrypt +# doesn't handle partial vectors (doesn't have to if called from +# EVP only). "Drop-in" implies that this module doesn't share key +# schedule structure with the original nor does it make assumption +# about its alignment... +# +# Performance summary. aes-586.pl column lists large-block CBC +# encrypt/decrypt/with-hyper-threading-off(*) results in cycles per +# byte processed with 128-bit key, and vpaes-x86.pl column - [also +# large-block CBC] encrypt/decrypt. +# +# aes-586.pl vpaes-x86.pl +# +# Core 2(**) 28.1/41.4/18.3 21.9/25.2(***) +# Nehalem 27.9/40.4/18.1 10.2/11.9 +# Atom 70.7/92.1/60.1 61.1/75.4(***) +# +# (*) "Hyper-threading" in the context refers rather to cache shared +# among multiple cores, than to specifically Intel HTT. As vast +# majority of contemporary cores share cache, slower code path +# is common place. In other words "with-hyper-threading-off" +# results are presented mostly for reference purposes. +# +# (**) "Core 2" refers to initial 65nm design, a.k.a. Conroe. +# +# (***) Less impressive improvement on Core 2 and Atom is due to slow +# pshufb, yet it's respectable +28%/64% improvement on Core 2 +# and +15% on Atom (as implied, over "hyper-threading-safe" +# code path). +# +# <appro@openssl.org> + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +push(@INC,"${dir}","${dir}../../perlasm"); +require "x86asm.pl"; + +&asm_init($ARGV[0],"vpaes-x86.pl",$x86only = $ARGV[$#ARGV] eq "386"); + +$PREFIX="vpaes"; + +my ($round, $base, $magic, $key, $const, $inp, $out)= + ("eax", "ebx", "ecx", "edx","ebp", "esi","edi"); + +&static_label("_vpaes_consts"); +&static_label("_vpaes_schedule_low_round"); + +&set_label("_vpaes_consts",64); +$k_inv=-0x30; # inv, inva + &data_word(0x0D080180,0x0E05060F,0x0A0B0C02,0x04070309); + &data_word(0x0F0B0780,0x01040A06,0x02050809,0x030D0E0C); + +$k_s0F=-0x10; # s0F + &data_word(0x0F0F0F0F,0x0F0F0F0F,0x0F0F0F0F,0x0F0F0F0F); + +$k_ipt=0x00; # input transform (lo, hi) + &data_word(0x5A2A7000,0xC2B2E898,0x52227808,0xCABAE090); + &data_word(0x317C4D00,0x4C01307D,0xB0FDCC81,0xCD80B1FC); + +$k_sb1=0x20; # sb1u, sb1t + &data_word(0xCB503E00,0xB19BE18F,0x142AF544,0xA5DF7A6E); + &data_word(0xFAE22300,0x3618D415,0x0D2ED9EF,0x3BF7CCC1); +$k_sb2=0x40; # sb2u, sb2t + &data_word(0x0B712400,0xE27A93C6,0xBC982FCD,0x5EB7E955); + &data_word(0x0AE12900,0x69EB8840,0xAB82234A,0xC2A163C8); +$k_sbo=0x60; # sbou, sbot + &data_word(0x6FBDC700,0xD0D26D17,0xC502A878,0x15AABF7A); + &data_word(0x5FBB6A00,0xCFE474A5,0x412B35FA,0x8E1E90D1); + +$k_mc_forward=0x80; # mc_forward + &data_word(0x00030201,0x04070605,0x080B0A09,0x0C0F0E0D); + &data_word(0x04070605,0x080B0A09,0x0C0F0E0D,0x00030201); + &data_word(0x080B0A09,0x0C0F0E0D,0x00030201,0x04070605); + &data_word(0x0C0F0E0D,0x00030201,0x04070605,0x080B0A09); + +$k_mc_backward=0xc0; # mc_backward + &data_word(0x02010003,0x06050407,0x0A09080B,0x0E0D0C0F); + &data_word(0x0E0D0C0F,0x02010003,0x06050407,0x0A09080B); + &data_word(0x0A09080B,0x0E0D0C0F,0x02010003,0x06050407); + &data_word(0x06050407,0x0A09080B,0x0E0D0C0F,0x02010003); + +$k_sr=0x100; # sr + &data_word(0x03020100,0x07060504,0x0B0A0908,0x0F0E0D0C); + &data_word(0x0F0A0500,0x030E0904,0x07020D08,0x0B06010C); + &data_word(0x0B020900,0x0F060D04,0x030A0108,0x070E050C); + &data_word(0x070A0D00,0x0B0E0104,0x0F020508,0x0306090C); + +$k_rcon=0x140; # rcon + &data_word(0xAF9DEEB6,0x1F8391B9,0x4D7C7D81,0x702A9808); + +$k_s63=0x150; # s63: all equal to 0x63 transformed + &data_word(0x5B5B5B5B,0x5B5B5B5B,0x5B5B5B5B,0x5B5B5B5B); + +$k_opt=0x160; # output transform + &data_word(0xD6B66000,0xFF9F4929,0xDEBE6808,0xF7974121); + &data_word(0x50BCEC00,0x01EDBD51,0xB05C0CE0,0xE10D5DB1); + +$k_deskew=0x180; # deskew tables: inverts the sbox's "skew" + &data_word(0x47A4E300,0x07E4A340,0x5DBEF91A,0x1DFEB95A); + &data_word(0x83EA6900,0x5F36B5DC,0xF49D1E77,0x2841C2AB); +## +## Decryption stuff +## Key schedule constants +## +$k_dksd=0x1a0; # decryption key schedule: invskew x*D + &data_word(0xA3E44700,0xFEB91A5D,0x5A1DBEF9,0x0740E3A4); + &data_word(0xB5368300,0x41C277F4,0xAB289D1E,0x5FDC69EA); +$k_dksb=0x1c0; # decryption key schedule: invskew x*B + &data_word(0x8550D500,0x9A4FCA1F,0x1CC94C99,0x03D65386); + &data_word(0xB6FC4A00,0x115BEDA7,0x7E3482C8,0xD993256F); +$k_dkse=0x1e0; # decryption key schedule: invskew x*E + 0x63 + &data_word(0x1FC9D600,0xD5031CCA,0x994F5086,0x53859A4C); + &data_word(0x4FDC7BE8,0xA2319605,0x20B31487,0xCD5EF96A); +$k_dks9=0x200; # decryption key schedule: invskew x*9 + &data_word(0x7ED9A700,0xB6116FC8,0x82255BFC,0x4AED9334); + &data_word(0x27143300,0x45765162,0xE9DAFDCE,0x8BB89FAC); + +## +## Decryption stuff +## Round function constants +## +$k_dipt=0x220; # decryption input transform + &data_word(0x0B545F00,0x0F505B04,0x114E451A,0x154A411E); + &data_word(0x60056500,0x86E383E6,0xF491F194,0x12771772); + +$k_dsb9=0x240; # decryption sbox output *9*u, *9*t + &data_word(0x9A86D600,0x851C0353,0x4F994CC9,0xCAD51F50); + &data_word(0xECD74900,0xC03B1789,0xB2FBA565,0x725E2C9E); +$k_dsbd=0x260; # decryption sbox output *D*u, *D*t + &data_word(0xE6B1A200,0x7D57CCDF,0x882A4439,0xF56E9B13); + &data_word(0x24C6CB00,0x3CE2FAF7,0x15DEEFD3,0x2931180D); +$k_dsbb=0x280; # decryption sbox output *B*u, *B*t + &data_word(0x96B44200,0xD0226492,0xB0F2D404,0x602646F6); + &data_word(0xCD596700,0xC19498A6,0x3255AA6B,0xF3FF0C3E); +$k_dsbe=0x2a0; # decryption sbox output *E*u, *E*t + &data_word(0x26D4D000,0x46F29296,0x64B4F6B0,0x22426004); + &data_word(0xFFAAC100,0x0C55A6CD,0x98593E32,0x9467F36B); +$k_dsbo=0x2c0; # decryption sbox final output + &data_word(0x7EF94000,0x1387EA53,0xD4943E2D,0xC7AA6DB9); + &data_word(0x93441D00,0x12D7560F,0xD8C58E9C,0xCA4B8159); +&asciz ("Vector Permutation AES for x86/SSSE3, Mike Hamburg (Stanford University)"); +&align (64); + +&function_begin_B("_vpaes_preheat"); + &add ($const,&DWP(0,"esp")); + &movdqa ("xmm7",&QWP($k_inv,$const)); + &movdqa ("xmm6",&QWP($k_s0F,$const)); + &ret (); +&function_end_B("_vpaes_preheat"); + +## +## _aes_encrypt_core +## +## AES-encrypt %xmm0. +## +## Inputs: +## %xmm0 = input +## %xmm6-%xmm7 as in _vpaes_preheat +## (%edx) = scheduled keys +## +## Output in %xmm0 +## Clobbers %xmm1-%xmm5, %eax, %ebx, %ecx, %edx +## +## +&function_begin_B("_vpaes_encrypt_core"); + &mov ($magic,16); + &mov ($round,&DWP(240,$key)); + &movdqa ("xmm1","xmm6") + &movdqa ("xmm2",&QWP($k_ipt,$const)); + &pandn ("xmm1","xmm0"); + &pand ("xmm0","xmm6"); + &movdqu ("xmm5",&QWP(0,$key)); + &pshufb ("xmm2","xmm0"); + &movdqa ("xmm0",&QWP($k_ipt+16,$const)); + &pxor ("xmm2","xmm5"); + &psrld ("xmm1",4); + &add ($key,16); + &pshufb ("xmm0","xmm1"); + &lea ($base,&DWP($k_mc_backward,$const)); + &pxor ("xmm0","xmm2"); + &jmp (&label("enc_entry")); + + +&set_label("enc_loop",16); + # middle of middle round + &movdqa ("xmm4",&QWP($k_sb1,$const)); # 4 : sb1u + &movdqa ("xmm0",&QWP($k_sb1+16,$const));# 0 : sb1t + &pshufb ("xmm4","xmm2"); # 4 = sb1u + &pshufb ("xmm0","xmm3"); # 0 = sb1t + &pxor ("xmm4","xmm5"); # 4 = sb1u + k + &movdqa ("xmm5",&QWP($k_sb2,$const)); # 4 : sb2u + &pxor ("xmm0","xmm4"); # 0 = A + &movdqa ("xmm1",&QWP(-0x40,$base,$magic));# .Lk_mc_forward[] + &pshufb ("xmm5","xmm2"); # 4 = sb2u + &movdqa ("xmm2",&QWP($k_sb2+16,$const));# 2 : sb2t + &movdqa ("xmm4",&QWP(0,$base,$magic)); # .Lk_mc_backward[] + &pshufb ("xmm2","xmm3"); # 2 = sb2t + &movdqa ("xmm3","xmm0"); # 3 = A + &pxor ("xmm2","xmm5"); # 2 = 2A + &pshufb ("xmm0","xmm1"); # 0 = B + &add ($key,16); # next key + &pxor ("xmm0","xmm2"); # 0 = 2A+B + &pshufb ("xmm3","xmm4"); # 3 = D + &add ($magic,16); # next mc + &pxor ("xmm3","xmm0"); # 3 = 2A+B+D + &pshufb ("xmm0","xmm1"); # 0 = 2B+C + &and ($magic,0x30); # ... mod 4 + &sub ($round,1); # nr-- + &pxor ("xmm0","xmm3"); # 0 = 2A+3B+C+D + +&set_label("enc_entry"); + # top of round + &movdqa ("xmm1","xmm6"); # 1 : i + &movdqa ("xmm5",&QWP($k_inv+16,$const));# 2 : a/k + &pandn ("xmm1","xmm0"); # 1 = i<<4 + &psrld ("xmm1",4); # 1 = i + &pand ("xmm0","xmm6"); # 0 = k + &pshufb ("xmm5","xmm0"); # 2 = a/k + &movdqa ("xmm3","xmm7"); # 3 : 1/i + &pxor ("xmm0","xmm1"); # 0 = j + &pshufb ("xmm3","xmm1"); # 3 = 1/i + &movdqa ("xmm4","xmm7"); # 4 : 1/j + &pxor ("xmm3","xmm5"); # 3 = iak = 1/i + a/k + &pshufb ("xmm4","xmm0"); # 4 = 1/j + &movdqa ("xmm2","xmm7"); # 2 : 1/iak + &pxor ("xmm4","xmm5"); # 4 = jak = 1/j + a/k + &pshufb ("xmm2","xmm3"); # 2 = 1/iak + &movdqa ("xmm3","xmm7"); # 3 : 1/jak + &pxor ("xmm2","xmm0"); # 2 = io + &pshufb ("xmm3","xmm4"); # 3 = 1/jak + &movdqu ("xmm5",&QWP(0,$key)); + &pxor ("xmm3","xmm1"); # 3 = jo + &jnz (&label("enc_loop")); + + # middle of last round + &movdqa ("xmm4",&QWP($k_sbo,$const)); # 3 : sbou .Lk_sbo + &movdqa ("xmm0",&QWP($k_sbo+16,$const));# 3 : sbot .Lk_sbo+16 + &pshufb ("xmm4","xmm2"); # 4 = sbou + &pxor ("xmm4","xmm5"); # 4 = sb1u + k + &pshufb ("xmm0","xmm3"); # 0 = sb1t + &movdqa ("xmm1",&QWP(0x40,$base,$magic));# .Lk_sr[] + &pxor ("xmm0","xmm4"); # 0 = A + &pshufb ("xmm0","xmm1"); + &ret (); +&function_end_B("_vpaes_encrypt_core"); + +## +## Decryption core +## +## Same API as encryption core. +## +&function_begin_B("_vpaes_decrypt_core"); + &lea ($base,&DWP($k_dsbd,$const)); + &mov ($round,&DWP(240,$key)); + &movdqa ("xmm1","xmm6"); + &movdqa ("xmm2",&QWP($k_dipt-$k_dsbd,$base)); + &pandn ("xmm1","xmm0"); + &mov ($magic,$round); + &psrld ("xmm1",4) + &movdqu ("xmm5",&QWP(0,$key)); + &shl ($magic,4); + &pand ("xmm0","xmm6"); + &pshufb ("xmm2","xmm0"); + &movdqa ("xmm0",&QWP($k_dipt-$k_dsbd+16,$base)); + &xor ($magic,0x30); + &pshufb ("xmm0","xmm1"); + &and ($magic,0x30); + &pxor ("xmm2","xmm5"); + &movdqa ("xmm5",&QWP($k_mc_forward+48,$const)); + &pxor ("xmm0","xmm2"); + &add ($key,16); + &lea ($magic,&DWP($k_sr-$k_dsbd,$base,$magic)); + &jmp (&label("dec_entry")); + +&set_label("dec_loop",16); +## +## Inverse mix columns +## + &movdqa ("xmm4",&QWP(-0x20,$base)); # 4 : sb9u + &movdqa ("xmm1",&QWP(-0x10,$base)); # 0 : sb9t + &pshufb ("xmm4","xmm2"); # 4 = sb9u + &pshufb ("xmm1","xmm3"); # 0 = sb9t + &pxor ("xmm0","xmm4"); + &movdqa ("xmm4",&QWP(0,$base)); # 4 : sbdu + &pxor ("xmm0","xmm1"); # 0 = ch + &movdqa ("xmm1",&QWP(0x10,$base)); # 0 : sbdt + + &pshufb ("xmm4","xmm2"); # 4 = sbdu + &pshufb ("xmm0","xmm5"); # MC ch + &pshufb ("xmm1","xmm3"); # 0 = sbdt + &pxor ("xmm0","xmm4"); # 4 = ch + &movdqa ("xmm4",&QWP(0x20,$base)); # 4 : sbbu + &pxor ("xmm0","xmm1"); # 0 = ch + &movdqa ("xmm1",&QWP(0x30,$base)); # 0 : sbbt + + &pshufb ("xmm4","xmm2"); # 4 = sbbu + &pshufb ("xmm0","xmm5"); # MC ch + &pshufb ("xmm1","xmm3"); # 0 = sbbt + &pxor ("xmm0","xmm4"); # 4 = ch + &movdqa ("xmm4",&QWP(0x40,$base)); # 4 : sbeu + &pxor ("xmm0","xmm1"); # 0 = ch + &movdqa ("xmm1",&QWP(0x50,$base)); # 0 : sbet + + &pshufb ("xmm4","xmm2"); # 4 = sbeu + &pshufb ("xmm0","xmm5"); # MC ch + &pshufb ("xmm1","xmm3"); # 0 = sbet + &pxor ("xmm0","xmm4"); # 4 = ch + &add ($key,16); # next round key + &palignr("xmm5","xmm5",12); + &pxor ("xmm0","xmm1"); # 0 = ch + &sub ($round,1); # nr-- + +&set_label("dec_entry"); + # top of round + &movdqa ("xmm1","xmm6"); # 1 : i + &movdqa ("xmm2",&QWP($k_inv+16,$const));# 2 : a/k + &pandn ("xmm1","xmm0"); # 1 = i<<4 + &pand ("xmm0","xmm6"); # 0 = k + &psrld ("xmm1",4); # 1 = i + &pshufb ("xmm2","xmm0"); # 2 = a/k + &movdqa ("xmm3","xmm7"); # 3 : 1/i + &pxor ("xmm0","xmm1"); # 0 = j + &pshufb ("xmm3","xmm1"); # 3 = 1/i + &movdqa ("xmm4","xmm7"); # 4 : 1/j + &pxor ("xmm3","xmm2"); # 3 = iak = 1/i + a/k + &pshufb ("xmm4","xmm0"); # 4 = 1/j + &pxor ("xmm4","xmm2"); # 4 = jak = 1/j + a/k + &movdqa ("xmm2","xmm7"); # 2 : 1/iak + &pshufb ("xmm2","xmm3"); # 2 = 1/iak + &movdqa ("xmm3","xmm7"); # 3 : 1/jak + &pxor ("xmm2","xmm0"); # 2 = io + &pshufb ("xmm3","xmm4"); # 3 = 1/jak + &movdqu ("xmm0",&QWP(0,$key)); + &pxor ("xmm3","xmm1"); # 3 = jo + &jnz (&label("dec_loop")); + + # middle of last round + &movdqa ("xmm4",&QWP(0x60,$base)); # 3 : sbou + &pshufb ("xmm4","xmm2"); # 4 = sbou + &pxor ("xmm4","xmm0"); # 4 = sb1u + k + &movdqa ("xmm0",&QWP(0x70,$base)); # 0 : sbot + &movdqa ("xmm2",&QWP(0,$magic)); + &pshufb ("xmm0","xmm3"); # 0 = sb1t + &pxor ("xmm0","xmm4"); # 0 = A + &pshufb ("xmm0","xmm2"); + &ret (); +&function_end_B("_vpaes_decrypt_core"); + +######################################################## +## ## +## AES key schedule ## +## ## +######################################################## +&function_begin_B("_vpaes_schedule_core"); + &add ($const,&DWP(0,"esp")); + &movdqu ("xmm0",&QWP(0,$inp)); # load key (unaligned) + &movdqa ("xmm2",&QWP($k_rcon,$const)); # load rcon + + # input transform + &movdqa ("xmm3","xmm0"); + &lea ($base,&DWP($k_ipt,$const)); + &movdqa (&QWP(4,"esp"),"xmm2"); # xmm8 + &call ("_vpaes_schedule_transform"); + &movdqa ("xmm7","xmm0"); + + &test ($out,$out); + &jnz (&label("schedule_am_decrypting")); + + # encrypting, output zeroth round key after transform + &movdqu (&QWP(0,$key),"xmm0"); + &jmp (&label("schedule_go")); + +&set_label("schedule_am_decrypting"); + # decrypting, output zeroth round key after shiftrows + &movdqa ("xmm1",&QWP($k_sr,$const,$magic)); + &pshufb ("xmm3","xmm1"); + &movdqu (&QWP(0,$key),"xmm3"); + &xor ($magic,0x30); + +&set_label("schedule_go"); + &cmp ($round,192); + &ja (&label("schedule_256")); + &je (&label("schedule_192")); + # 128: fall though + +## +## .schedule_128 +## +## 128-bit specific part of key schedule. +## +## This schedule is really simple, because all its parts +## are accomplished by the subroutines. +## +&set_label("schedule_128"); + &mov ($round,10); + +&set_label("loop_schedule_128"); + &call ("_vpaes_schedule_round"); + &dec ($round); + &jz (&label("schedule_mangle_last")); + &call ("_vpaes_schedule_mangle"); # write output + &jmp (&label("loop_schedule_128")); + +## +## .aes_schedule_192 +## +## 192-bit specific part of key schedule. +## +## The main body of this schedule is the same as the 128-bit +## schedule, but with more smearing. The long, high side is +## stored in %xmm7 as before, and the short, low side is in +## the high bits of %xmm6. +## +## This schedule is somewhat nastier, however, because each +## round produces 192 bits of key material, or 1.5 round keys. +## Therefore, on each cycle we do 2 rounds and produce 3 round +## keys. +## +&set_label("schedule_192",16); + &movdqu ("xmm0",&QWP(8,$inp)); # load key part 2 (very unaligned) + &call ("_vpaes_schedule_transform"); # input transform + &movdqa ("xmm6","xmm0"); # save short part + &pxor ("xmm4","xmm4"); # clear 4 + &movhlps("xmm6","xmm4"); # clobber low side with zeros + &mov ($round,4); + +&set_label("loop_schedule_192"); + &call ("_vpaes_schedule_round"); + &palignr("xmm0","xmm6",8); + &call ("_vpaes_schedule_mangle"); # save key n + &call ("_vpaes_schedule_192_smear"); + &call ("_vpaes_schedule_mangle"); # save key n+1 + &call ("_vpaes_schedule_round"); + &dec ($round); + &jz (&label("schedule_mangle_last")); + &call ("_vpaes_schedule_mangle"); # save key n+2 + &call ("_vpaes_schedule_192_smear"); + &jmp (&label("loop_schedule_192")); + +## +## .aes_schedule_256 +## +## 256-bit specific part of key schedule. +## +## The structure here is very similar to the 128-bit +## schedule, but with an additional "low side" in +## %xmm6. The low side's rounds are the same as the +## high side's, except no rcon and no rotation. +## +&set_label("schedule_256",16); + &movdqu ("xmm0",&QWP(16,$inp)); # load key part 2 (unaligned) + &call ("_vpaes_schedule_transform"); # input transform + &mov ($round,7); + +&set_label("loop_schedule_256"); + &call ("_vpaes_schedule_mangle"); # output low result + &movdqa ("xmm6","xmm0"); # save cur_lo in xmm6 + + # high round + &call ("_vpaes_schedule_round"); + &dec ($round); + &jz (&label("schedule_mangle_last")); + &call ("_vpaes_schedule_mangle"); + + # low round. swap xmm7 and xmm6 + &pshufd ("xmm0","xmm0",0xFF); + &movdqa (&QWP(20,"esp"),"xmm7"); + &movdqa ("xmm7","xmm6"); + &call ("_vpaes_schedule_low_round"); + &movdqa ("xmm7",&QWP(20,"esp")); + + &jmp (&label("loop_schedule_256")); + +## +## .aes_schedule_mangle_last +## +## Mangler for last round of key schedule +## Mangles %xmm0 +## when encrypting, outputs out(%xmm0) ^ 63 +## when decrypting, outputs unskew(%xmm0) +## +## Always called right before return... jumps to cleanup and exits +## +&set_label("schedule_mangle_last",16); + # schedule last round key from xmm0 + &lea ($base,&DWP($k_deskew,$const)); + &test ($out,$out); + &jnz (&label("schedule_mangle_last_dec")); + + # encrypting + &movdqa ("xmm1",&QWP($k_sr,$const,$magic)); + &pshufb ("xmm0","xmm1"); # output permute + &lea ($base,&DWP($k_opt,$const)); # prepare to output transform + &add ($key,32); + +&set_label("schedule_mangle_last_dec"); + &add ($key,-16); + &pxor ("xmm0",&QWP($k_s63,$const)); + &call ("_vpaes_schedule_transform"); # output transform + &movdqu (&QWP(0,$key),"xmm0"); # save last key + + # cleanup + &pxor ("xmm0","xmm0"); + &pxor ("xmm1","xmm1"); + &pxor ("xmm2","xmm2"); + &pxor ("xmm3","xmm3"); + &pxor ("xmm4","xmm4"); + &pxor ("xmm5","xmm5"); + &pxor ("xmm6","xmm6"); + &pxor ("xmm7","xmm7"); + &ret (); +&function_end_B("_vpaes_schedule_core"); + +## +## .aes_schedule_192_smear +## +## Smear the short, low side in the 192-bit key schedule. +## +## Inputs: +## %xmm7: high side, b a x y +## %xmm6: low side, d c 0 0 +## %xmm13: 0 +## +## Outputs: +## %xmm6: b+c+d b+c 0 0 +## %xmm0: b+c+d b+c b a +## +&function_begin_B("_vpaes_schedule_192_smear"); + &pshufd ("xmm1","xmm6",0x80); # d c 0 0 -> c 0 0 0 + &pshufd ("xmm0","xmm7",0xFE); # b a _ _ -> b b b a + &pxor ("xmm6","xmm1"); # -> c+d c 0 0 + &pxor ("xmm1","xmm1"); + &pxor ("xmm6","xmm0"); # -> b+c+d b+c b a + &movdqa ("xmm0","xmm6"); + &movhlps("xmm6","xmm1"); # clobber low side with zeros + &ret (); +&function_end_B("_vpaes_schedule_192_smear"); + +## +## .aes_schedule_round +## +## Runs one main round of the key schedule on %xmm0, %xmm7 +## +## Specifically, runs subbytes on the high dword of %xmm0 +## then rotates it by one byte and xors into the low dword of +## %xmm7. +## +## Adds rcon from low byte of %xmm8, then rotates %xmm8 for +## next rcon. +## +## Smears the dwords of %xmm7 by xoring the low into the +## second low, result into third, result into highest. +## +## Returns results in %xmm7 = %xmm0. +## Clobbers %xmm1-%xmm5. +## +&function_begin_B("_vpaes_schedule_round"); + # extract rcon from xmm8 + &movdqa ("xmm2",&QWP(8,"esp")); # xmm8 + &pxor ("xmm1","xmm1"); + &palignr("xmm1","xmm2",15); + &palignr("xmm2","xmm2",15); + &pxor ("xmm7","xmm1"); + + # rotate + &pshufd ("xmm0","xmm0",0xFF); + &palignr("xmm0","xmm0",1); + + # fall through... + &movdqa (&QWP(8,"esp"),"xmm2"); # xmm8 + + # low round: same as high round, but no rotation and no rcon. +&set_label("_vpaes_schedule_low_round"); + # smear xmm7 + &movdqa ("xmm1","xmm7"); + &pslldq ("xmm7",4); + &pxor ("xmm7","xmm1"); + &movdqa ("xmm1","xmm7"); + &pslldq ("xmm7",8); + &pxor ("xmm7","xmm1"); + &pxor ("xmm7",&QWP($k_s63,$const)); + + # subbyte + &movdqa ("xmm4",&QWP($k_s0F,$const)); + &movdqa ("xmm5",&QWP($k_inv,$const)); # 4 : 1/j + &movdqa ("xmm1","xmm4"); + &pandn ("xmm1","xmm0"); + &psrld ("xmm1",4); # 1 = i + &pand ("xmm0","xmm4"); # 0 = k + &movdqa ("xmm2",&QWP($k_inv+16,$const));# 2 : a/k + &pshufb ("xmm2","xmm0"); # 2 = a/k + &pxor ("xmm0","xmm1"); # 0 = j + &movdqa ("xmm3","xmm5"); # 3 : 1/i + &pshufb ("xmm3","xmm1"); # 3 = 1/i + &pxor ("xmm3","xmm2"); # 3 = iak = 1/i + a/k + &movdqa ("xmm4","xmm5"); # 4 : 1/j + &pshufb ("xmm4","xmm0"); # 4 = 1/j + &pxor ("xmm4","xmm2"); # 4 = jak = 1/j + a/k + &movdqa ("xmm2","xmm5"); # 2 : 1/iak + &pshufb ("xmm2","xmm3"); # 2 = 1/iak + &pxor ("xmm2","xmm0"); # 2 = io + &movdqa ("xmm3","xmm5"); # 3 : 1/jak + &pshufb ("xmm3","xmm4"); # 3 = 1/jak + &pxor ("xmm3","xmm1"); # 3 = jo + &movdqa ("xmm4",&QWP($k_sb1,$const)); # 4 : sbou + &pshufb ("xmm4","xmm2"); # 4 = sbou + &movdqa ("xmm0",&QWP($k_sb1+16,$const));# 0 : sbot + &pshufb ("xmm0","xmm3"); # 0 = sb1t + &pxor ("xmm0","xmm4"); # 0 = sbox output + + # add in smeared stuff + &pxor ("xmm0","xmm7"); + &movdqa ("xmm7","xmm0"); + &ret (); +&function_end_B("_vpaes_schedule_round"); + +## +## .aes_schedule_transform +## +## Linear-transform %xmm0 according to tables at (%ebx) +## +## Output in %xmm0 +## Clobbers %xmm1, %xmm2 +## +&function_begin_B("_vpaes_schedule_transform"); + &movdqa ("xmm2",&QWP($k_s0F,$const)); + &movdqa ("xmm1","xmm2"); + &pandn ("xmm1","xmm0"); + &psrld ("xmm1",4); + &pand ("xmm0","xmm2"); + &movdqa ("xmm2",&QWP(0,$base)); + &pshufb ("xmm2","xmm0"); + &movdqa ("xmm0",&QWP(16,$base)); + &pshufb ("xmm0","xmm1"); + &pxor ("xmm0","xmm2"); + &ret (); +&function_end_B("_vpaes_schedule_transform"); + +## +## .aes_schedule_mangle +## +## Mangle xmm0 from (basis-transformed) standard version +## to our version. +## +## On encrypt, +## xor with 0x63 +## multiply by circulant 0,1,1,1 +## apply shiftrows transform +## +## On decrypt, +## xor with 0x63 +## multiply by "inverse mixcolumns" circulant E,B,D,9 +## deskew +## apply shiftrows transform +## +## +## Writes out to (%edx), and increments or decrements it +## Keeps track of round number mod 4 in %ecx +## Preserves xmm0 +## Clobbers xmm1-xmm5 +## +&function_begin_B("_vpaes_schedule_mangle"); + &movdqa ("xmm4","xmm0"); # save xmm0 for later + &movdqa ("xmm5",&QWP($k_mc_forward,$const)); + &test ($out,$out); + &jnz (&label("schedule_mangle_dec")); + + # encrypting + &add ($key,16); + &pxor ("xmm4",&QWP($k_s63,$const)); + &pshufb ("xmm4","xmm5"); + &movdqa ("xmm3","xmm4"); + &pshufb ("xmm4","xmm5"); + &pxor ("xmm3","xmm4"); + &pshufb ("xmm4","xmm5"); + &pxor ("xmm3","xmm4"); + + &jmp (&label("schedule_mangle_both")); + +&set_label("schedule_mangle_dec",16); + # inverse mix columns + &movdqa ("xmm2",&QWP($k_s0F,$const)); + &lea ($inp,&DWP($k_dksd,$const)); + &movdqa ("xmm1","xmm2"); + &pandn ("xmm1","xmm4"); + &psrld ("xmm1",4); # 1 = hi + &pand ("xmm4","xmm2"); # 4 = lo + + &movdqa ("xmm2",&QWP(0,$inp)); + &pshufb ("xmm2","xmm4"); + &movdqa ("xmm3",&QWP(0x10,$inp)); + &pshufb ("xmm3","xmm1"); + &pxor ("xmm3","xmm2"); + &pshufb ("xmm3","xmm5"); + + &movdqa ("xmm2",&QWP(0x20,$inp)); + &pshufb ("xmm2","xmm4"); + &pxor ("xmm2","xmm3"); + &movdqa ("xmm3",&QWP(0x30,$inp)); + &pshufb ("xmm3","xmm1"); + &pxor ("xmm3","xmm2"); + &pshufb ("xmm3","xmm5"); + + &movdqa ("xmm2",&QWP(0x40,$inp)); + &pshufb ("xmm2","xmm4"); + &pxor ("xmm2","xmm3"); + &movdqa ("xmm3",&QWP(0x50,$inp)); + &pshufb ("xmm3","xmm1"); + &pxor ("xmm3","xmm2"); + &pshufb ("xmm3","xmm5"); + + &movdqa ("xmm2",&QWP(0x60,$inp)); + &pshufb ("xmm2","xmm4"); + &pxor ("xmm2","xmm3"); + &movdqa ("xmm3",&QWP(0x70,$inp)); + &pshufb ("xmm3","xmm1"); + &pxor ("xmm3","xmm2"); + + &add ($key,-16); + +&set_label("schedule_mangle_both"); + &movdqa ("xmm1",&QWP($k_sr,$const,$magic)); + &pshufb ("xmm3","xmm1"); + &add ($magic,-16); + &and ($magic,0x30); + &movdqu (&QWP(0,$key),"xmm3"); + &ret (); +&function_end_B("_vpaes_schedule_mangle"); + +# +# Interface to OpenSSL +# +&function_begin("${PREFIX}_set_encrypt_key"); + &mov ($inp,&wparam(0)); # inp + &lea ($base,&DWP(-56,"esp")); + &mov ($round,&wparam(1)); # bits + &and ($base,-16); + &mov ($key,&wparam(2)); # key + &xchg ($base,"esp"); # alloca + &mov (&DWP(48,"esp"),$base); + + &mov ($base,$round); + &shr ($base,5); + &add ($base,5); + &mov (&DWP(240,$key),$base); # AES_KEY->rounds = nbits/32+5; + &mov ($magic,0x30); + &mov ($out,0); + + &lea ($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point"))); + &call ("_vpaes_schedule_core"); +&set_label("pic_point"); + + &mov ("esp",&DWP(48,"esp")); + &xor ("eax","eax"); +&function_end("${PREFIX}_set_encrypt_key"); + +&function_begin("${PREFIX}_set_decrypt_key"); + &mov ($inp,&wparam(0)); # inp + &lea ($base,&DWP(-56,"esp")); + &mov ($round,&wparam(1)); # bits + &and ($base,-16); + &mov ($key,&wparam(2)); # key + &xchg ($base,"esp"); # alloca + &mov (&DWP(48,"esp"),$base); + + &mov ($base,$round); + &shr ($base,5); + &add ($base,5); + &mov (&DWP(240,$key),$base); # AES_KEY->rounds = nbits/32+5; + &shl ($base,4); + &lea ($key,&DWP(16,$key,$base)); + + &mov ($out,1); + &mov ($magic,$round); + &shr ($magic,1); + &and ($magic,32); + &xor ($magic,32); # nbist==192?0:32; + + &lea ($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point"))); + &call ("_vpaes_schedule_core"); +&set_label("pic_point"); + + &mov ("esp",&DWP(48,"esp")); + &xor ("eax","eax"); +&function_end("${PREFIX}_set_decrypt_key"); + +&function_begin("${PREFIX}_encrypt"); + &lea ($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point"))); + &call ("_vpaes_preheat"); +&set_label("pic_point"); + &mov ($inp,&wparam(0)); # inp + &lea ($base,&DWP(-56,"esp")); + &mov ($out,&wparam(1)); # out + &and ($base,-16); + &mov ($key,&wparam(2)); # key + &xchg ($base,"esp"); # alloca + &mov (&DWP(48,"esp"),$base); + + &movdqu ("xmm0",&QWP(0,$inp)); + &call ("_vpaes_encrypt_core"); + &movdqu (&QWP(0,$out),"xmm0"); + + &mov ("esp",&DWP(48,"esp")); +&function_end("${PREFIX}_encrypt"); + +&function_begin("${PREFIX}_decrypt"); + &lea ($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point"))); + &call ("_vpaes_preheat"); +&set_label("pic_point"); + &mov ($inp,&wparam(0)); # inp + &lea ($base,&DWP(-56,"esp")); + &mov ($out,&wparam(1)); # out + &and ($base,-16); + &mov ($key,&wparam(2)); # key + &xchg ($base,"esp"); # alloca + &mov (&DWP(48,"esp"),$base); + + &movdqu ("xmm0",&QWP(0,$inp)); + &call ("_vpaes_decrypt_core"); + &movdqu (&QWP(0,$out),"xmm0"); + + &mov ("esp",&DWP(48,"esp")); +&function_end("${PREFIX}_decrypt"); + +&function_begin("${PREFIX}_cbc_encrypt"); + &mov ($inp,&wparam(0)); # inp + &mov ($out,&wparam(1)); # out + &mov ($round,&wparam(2)); # len + &mov ($key,&wparam(3)); # key + &sub ($round,16); + &jc (&label("cbc_abort")); + &lea ($base,&DWP(-56,"esp")); + &mov ($const,&wparam(4)); # ivp + &and ($base,-16); + &mov ($magic,&wparam(5)); # enc + &xchg ($base,"esp"); # alloca + &movdqu ("xmm1",&QWP(0,$const)); # load IV + &sub ($out,$inp); + &mov (&DWP(48,"esp"),$base); + + &mov (&DWP(0,"esp"),$out); # save out + &mov (&DWP(4,"esp"),$key) # save key + &mov (&DWP(8,"esp"),$const); # save ivp + &mov ($out,$round); # $out works as $len + + &lea ($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point"))); + &call ("_vpaes_preheat"); +&set_label("pic_point"); + &cmp ($magic,0); + &je (&label("cbc_dec_loop")); + &jmp (&label("cbc_enc_loop")); + +&set_label("cbc_enc_loop",16); + &movdqu ("xmm0",&QWP(0,$inp)); # load input + &pxor ("xmm0","xmm1"); # inp^=iv + &call ("_vpaes_encrypt_core"); + &mov ($base,&DWP(0,"esp")); # restore out + &mov ($key,&DWP(4,"esp")); # restore key + &movdqa ("xmm1","xmm0"); + &movdqu (&QWP(0,$base,$inp),"xmm0"); # write output + &lea ($inp,&DWP(16,$inp)); + &sub ($out,16); + &jnc (&label("cbc_enc_loop")); + &jmp (&label("cbc_done")); + +&set_label("cbc_dec_loop",16); + &movdqu ("xmm0",&QWP(0,$inp)); # load input + &movdqa (&QWP(16,"esp"),"xmm1"); # save IV + &movdqa (&QWP(32,"esp"),"xmm0"); # save future IV + &call ("_vpaes_decrypt_core"); + &mov ($base,&DWP(0,"esp")); # restore out + &mov ($key,&DWP(4,"esp")); # restore key + &pxor ("xmm0",&QWP(16,"esp")); # out^=iv + &movdqa ("xmm1",&QWP(32,"esp")); # load next IV + &movdqu (&QWP(0,$base,$inp),"xmm0"); # write output + &lea ($inp,&DWP(16,$inp)); + &sub ($out,16); + &jnc (&label("cbc_dec_loop")); + +&set_label("cbc_done"); + &mov ($base,&DWP(8,"esp")); # restore ivp + &mov ("esp",&DWP(48,"esp")); + &movdqu (&QWP(0,$base),"xmm1"); # write IV +&set_label("cbc_abort"); +&function_end("${PREFIX}_cbc_encrypt"); + +&asm_finish(); diff --git a/crypto/aes/asm/vpaes-x86_64.pl b/crypto/aes/asm/vpaes-x86_64.pl new file mode 100644 index 00000000..212394bc --- /dev/null +++ b/crypto/aes/asm/vpaes-x86_64.pl @@ -0,0 +1,1206 @@ +#!/usr/bin/env perl + +###################################################################### +## Constant-time SSSE3 AES core implementation. +## version 0.1 +## +## By Mike Hamburg (Stanford University), 2009 +## Public domain. +## +## For details see http://shiftleft.org/papers/vector_aes/ and +## http://crypto.stanford.edu/vpaes/. + +###################################################################### +# September 2011. +# +# Interface to OpenSSL as "almost" drop-in replacement for +# aes-x86_64.pl. "Almost" refers to the fact that AES_cbc_encrypt +# doesn't handle partial vectors (doesn't have to if called from +# EVP only). "Drop-in" implies that this module doesn't share key +# schedule structure with the original nor does it make assumption +# about its alignment... +# +# Performance summary. aes-x86_64.pl column lists large-block CBC +# encrypt/decrypt/with-hyper-threading-off(*) results in cycles per +# byte processed with 128-bit key, and vpaes-x86_64.pl column - +# [also large-block CBC] encrypt/decrypt. +# +# aes-x86_64.pl vpaes-x86_64.pl +# +# Core 2(**) 29.6/41.1/14.3 21.9/25.2(***) +# Nehalem 29.6/40.3/14.6 10.0/11.8 +# Atom 57.3/74.2/32.1 60.9/77.2(***) +# +# (*) "Hyper-threading" in the context refers rather to cache shared +# among multiple cores, than to specifically Intel HTT. As vast +# majority of contemporary cores share cache, slower code path +# is common place. In other words "with-hyper-threading-off" +# results are presented mostly for reference purposes. +# +# (**) "Core 2" refers to initial 65nm design, a.k.a. Conroe. +# +# (***) Less impressive improvement on Core 2 and Atom is due to slow +# pshufb, yet it's respectable +36%/62% improvement on Core 2 +# (as implied, over "hyper-threading-safe" code path). +# +# <appro@openssl.org> + +$flavour = shift; +$output = shift; +if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } + +$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or +( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or +die "can't locate x86_64-xlate.pl"; + +open OUT,"| \"$^X\" $xlate $flavour $output"; +*STDOUT=*OUT; + +$PREFIX="vpaes"; + +$code.=<<___; +.text + +## +## _aes_encrypt_core +## +## AES-encrypt %xmm0. +## +## Inputs: +## %xmm0 = input +## %xmm9-%xmm15 as in _vpaes_preheat +## (%rdx) = scheduled keys +## +## Output in %xmm0 +## Clobbers %xmm1-%xmm5, %r9, %r10, %r11, %rax +## Preserves %xmm6 - %xmm8 so you get some local vectors +## +## +.type _vpaes_encrypt_core,\@abi-omnipotent +.align 16 +_vpaes_encrypt_core: + mov %rdx, %r9 + mov \$16, %r11 + mov 240(%rdx),%eax + movdqa %xmm9, %xmm1 + movdqa .Lk_ipt(%rip), %xmm2 # iptlo + pandn %xmm0, %xmm1 + movdqu (%r9), %xmm5 # round0 key + psrld \$4, %xmm1 + pand %xmm9, %xmm0 + pshufb %xmm0, %xmm2 + movdqa .Lk_ipt+16(%rip), %xmm0 # ipthi + pshufb %xmm1, %xmm0 + pxor %xmm5, %xmm2 + add \$16, %r9 + pxor %xmm2, %xmm0 + lea .Lk_mc_backward(%rip),%r10 + jmp .Lenc_entry + +.align 16 +.Lenc_loop: + # middle of middle round + movdqa %xmm13, %xmm4 # 4 : sb1u + movdqa %xmm12, %xmm0 # 0 : sb1t + pshufb %xmm2, %xmm4 # 4 = sb1u + pshufb %xmm3, %xmm0 # 0 = sb1t + pxor %xmm5, %xmm4 # 4 = sb1u + k + movdqa %xmm15, %xmm5 # 4 : sb2u + pxor %xmm4, %xmm0 # 0 = A + movdqa -0x40(%r11,%r10), %xmm1 # .Lk_mc_forward[] + pshufb %xmm2, %xmm5 # 4 = sb2u + movdqa (%r11,%r10), %xmm4 # .Lk_mc_backward[] + movdqa %xmm14, %xmm2 # 2 : sb2t + pshufb %xmm3, %xmm2 # 2 = sb2t + movdqa %xmm0, %xmm3 # 3 = A + pxor %xmm5, %xmm2 # 2 = 2A + pshufb %xmm1, %xmm0 # 0 = B + add \$16, %r9 # next key + pxor %xmm2, %xmm0 # 0 = 2A+B + pshufb %xmm4, %xmm3 # 3 = D + add \$16, %r11 # next mc + pxor %xmm0, %xmm3 # 3 = 2A+B+D + pshufb %xmm1, %xmm0 # 0 = 2B+C + and \$0x30, %r11 # ... mod 4 + sub \$1,%rax # nr-- + pxor %xmm3, %xmm0 # 0 = 2A+3B+C+D + +.Lenc_entry: + # top of round + movdqa %xmm9, %xmm1 # 1 : i + movdqa %xmm11, %xmm5 # 2 : a/k + pandn %xmm0, %xmm1 # 1 = i<<4 + psrld \$4, %xmm1 # 1 = i + pand %xmm9, %xmm0 # 0 = k + pshufb %xmm0, %xmm5 # 2 = a/k + movdqa %xmm10, %xmm3 # 3 : 1/i + pxor %xmm1, %xmm0 # 0 = j + pshufb %xmm1, %xmm3 # 3 = 1/i + movdqa %xmm10, %xmm4 # 4 : 1/j + pxor %xmm5, %xmm3 # 3 = iak = 1/i + a/k + pshufb %xmm0, %xmm4 # 4 = 1/j + movdqa %xmm10, %xmm2 # 2 : 1/iak + pxor %xmm5, %xmm4 # 4 = jak = 1/j + a/k + pshufb %xmm3, %xmm2 # 2 = 1/iak + movdqa %xmm10, %xmm3 # 3 : 1/jak + pxor %xmm0, %xmm2 # 2 = io + pshufb %xmm4, %xmm3 # 3 = 1/jak + movdqu (%r9), %xmm5 + pxor %xmm1, %xmm3 # 3 = jo + jnz .Lenc_loop + + # middle of last round + movdqa -0x60(%r10), %xmm4 # 3 : sbou .Lk_sbo + movdqa -0x50(%r10), %xmm0 # 0 : sbot .Lk_sbo+16 + pshufb %xmm2, %xmm4 # 4 = sbou + pxor %xmm5, %xmm4 # 4 = sb1u + k + pshufb %xmm3, %xmm0 # 0 = sb1t + movdqa 0x40(%r11,%r10), %xmm1 # .Lk_sr[] + pxor %xmm4, %xmm0 # 0 = A + pshufb %xmm1, %xmm0 + ret +.size _vpaes_encrypt_core,.-_vpaes_encrypt_core + +## +## Decryption core +## +## Same API as encryption core. +## +.type _vpaes_decrypt_core,\@abi-omnipotent +.align 16 +_vpaes_decrypt_core: + mov %rdx, %r9 # load key + mov 240(%rdx),%eax + movdqa %xmm9, %xmm1 + movdqa .Lk_dipt(%rip), %xmm2 # iptlo + pandn %xmm0, %xmm1 + mov %rax, %r11 + psrld \$4, %xmm1 + movdqu (%r9), %xmm5 # round0 key + shl \$4, %r11 + pand %xmm9, %xmm0 + pshufb %xmm0, %xmm2 + movdqa .Lk_dipt+16(%rip), %xmm0 # ipthi + xor \$0x30, %r11 + lea .Lk_dsbd(%rip),%r10 + pshufb %xmm1, %xmm0 + and \$0x30, %r11 + pxor %xmm5, %xmm2 + movdqa .Lk_mc_forward+48(%rip), %xmm5 + pxor %xmm2, %xmm0 + add \$16, %r9 + add %r10, %r11 + jmp .Ldec_entry + +.align 16 +.Ldec_loop: +## +## Inverse mix columns +## + movdqa -0x20(%r10),%xmm4 # 4 : sb9u + movdqa -0x10(%r10),%xmm1 # 0 : sb9t + pshufb %xmm2, %xmm4 # 4 = sb9u + pshufb %xmm3, %xmm1 # 0 = sb9t + pxor %xmm4, %xmm0 + movdqa 0x00(%r10),%xmm4 # 4 : sbdu + pxor %xmm1, %xmm0 # 0 = ch + movdqa 0x10(%r10),%xmm1 # 0 : sbdt + + pshufb %xmm2, %xmm4 # 4 = sbdu + pshufb %xmm5, %xmm0 # MC ch + pshufb %xmm3, %xmm1 # 0 = sbdt + pxor %xmm4, %xmm0 # 4 = ch + movdqa 0x20(%r10),%xmm4 # 4 : sbbu + pxor %xmm1, %xmm0 # 0 = ch + movdqa 0x30(%r10),%xmm1 # 0 : sbbt + + pshufb %xmm2, %xmm4 # 4 = sbbu + pshufb %xmm5, %xmm0 # MC ch + pshufb %xmm3, %xmm1 # 0 = sbbt + pxor %xmm4, %xmm0 # 4 = ch + movdqa 0x40(%r10),%xmm4 # 4 : sbeu + pxor %xmm1, %xmm0 # 0 = ch + movdqa 0x50(%r10),%xmm1 # 0 : sbet + + pshufb %xmm2, %xmm4 # 4 = sbeu + pshufb %xmm5, %xmm0 # MC ch + pshufb %xmm3, %xmm1 # 0 = sbet + pxor %xmm4, %xmm0 # 4 = ch + add \$16, %r9 # next round key + palignr \$12, %xmm5, %xmm5 + pxor %xmm1, %xmm0 # 0 = ch + sub \$1,%rax # nr-- + +.Ldec_entry: + # top of round + movdqa %xmm9, %xmm1 # 1 : i + pandn %xmm0, %xmm1 # 1 = i<<4 + movdqa %xmm11, %xmm2 # 2 : a/k + psrld \$4, %xmm1 # 1 = i + pand %xmm9, %xmm0 # 0 = k + pshufb %xmm0, %xmm2 # 2 = a/k + movdqa %xmm10, %xmm3 # 3 : 1/i + pxor %xmm1, %xmm0 # 0 = j + pshufb %xmm1, %xmm3 # 3 = 1/i + movdqa %xmm10, %xmm4 # 4 : 1/j + pxor %xmm2, %xmm3 # 3 = iak = 1/i + a/k + pshufb %xmm0, %xmm4 # 4 = 1/j + pxor %xmm2, %xmm4 # 4 = jak = 1/j + a/k + movdqa %xmm10, %xmm2 # 2 : 1/iak + pshufb %xmm3, %xmm2 # 2 = 1/iak + movdqa %xmm10, %xmm3 # 3 : 1/jak + pxor %xmm0, %xmm2 # 2 = io + pshufb %xmm4, %xmm3 # 3 = 1/jak + movdqu (%r9), %xmm0 + pxor %xmm1, %xmm3 # 3 = jo + jnz .Ldec_loop + + # middle of last round + movdqa 0x60(%r10), %xmm4 # 3 : sbou + pshufb %xmm2, %xmm4 # 4 = sbou + pxor %xmm0, %xmm4 # 4 = sb1u + k + movdqa 0x70(%r10), %xmm0 # 0 : sbot + movdqa -0x160(%r11), %xmm2 # .Lk_sr-.Lk_dsbd=-0x160 + pshufb %xmm3, %xmm0 # 0 = sb1t + pxor %xmm4, %xmm0 # 0 = A + pshufb %xmm2, %xmm0 + ret +.size _vpaes_decrypt_core,.-_vpaes_decrypt_core + +######################################################## +## ## +## AES key schedule ## +## ## +######################################################## +.type _vpaes_schedule_core,\@abi-omnipotent +.align 16 +_vpaes_schedule_core: + # rdi = key + # rsi = size in bits + # rdx = buffer + # rcx = direction. 0=encrypt, 1=decrypt + + call _vpaes_preheat # load the tables + movdqa .Lk_rcon(%rip), %xmm8 # load rcon + movdqu (%rdi), %xmm0 # load key (unaligned) + + # input transform + movdqa %xmm0, %xmm3 + lea .Lk_ipt(%rip), %r11 + call _vpaes_schedule_transform + movdqa %xmm0, %xmm7 + + lea .Lk_sr(%rip),%r10 + test %rcx, %rcx + jnz .Lschedule_am_decrypting + + # encrypting, output zeroth round key after transform + movdqu %xmm0, (%rdx) + jmp .Lschedule_go + +.Lschedule_am_decrypting: + # decrypting, output zeroth round key after shiftrows + movdqa (%r8,%r10),%xmm1 + pshufb %xmm1, %xmm3 + movdqu %xmm3, (%rdx) + xor \$0x30, %r8 + +.Lschedule_go: + cmp \$192, %esi + ja .Lschedule_256 + je .Lschedule_192 + # 128: fall though + +## +## .schedule_128 +## +## 128-bit specific part of key schedule. +## +## This schedule is really simple, because all its parts +## are accomplished by the subroutines. +## +.Lschedule_128: + mov \$10, %esi + +.Loop_schedule_128: + call _vpaes_schedule_round + dec %rsi + jz .Lschedule_mangle_last + call _vpaes_schedule_mangle # write output + jmp .Loop_schedule_128 + +## +## .aes_schedule_192 +## +## 192-bit specific part of key schedule. +## +## The main body of this schedule is the same as the 128-bit +## schedule, but with more smearing. The long, high side is +## stored in %xmm7 as before, and the short, low side is in +## the high bits of %xmm6. +## +## This schedule is somewhat nastier, however, because each +## round produces 192 bits of key material, or 1.5 round keys. +## Therefore, on each cycle we do 2 rounds and produce 3 round +## keys. +## +.align 16 +.Lschedule_192: + movdqu 8(%rdi),%xmm0 # load key part 2 (very unaligned) + call _vpaes_schedule_transform # input transform + movdqa %xmm0, %xmm6 # save short part + pxor %xmm4, %xmm4 # clear 4 + movhlps %xmm4, %xmm6 # clobber low side with zeros + mov \$4, %esi + +.Loop_schedule_192: + call _vpaes_schedule_round + palignr \$8,%xmm6,%xmm0 + call _vpaes_schedule_mangle # save key n + call _vpaes_schedule_192_smear + call _vpaes_schedule_mangle # save key n+1 + call _vpaes_schedule_round + dec %rsi + jz .Lschedule_mangle_last + call _vpaes_schedule_mangle # save key n+2 + call _vpaes_schedule_192_smear + jmp .Loop_schedule_192 + +## +## .aes_schedule_256 +## +## 256-bit specific part of key schedule. +## +## The structure here is very similar to the 128-bit +## schedule, but with an additional "low side" in +## %xmm6. The low side's rounds are the same as the +## high side's, except no rcon and no rotation. +## +.align 16 +.Lschedule_256: + movdqu 16(%rdi),%xmm0 # load key part 2 (unaligned) + call _vpaes_schedule_transform # input transform + mov \$7, %esi + +.Loop_schedule_256: + call _vpaes_schedule_mangle # output low result + movdqa %xmm0, %xmm6 # save cur_lo in xmm6 + + # high round + call _vpaes_schedule_round + dec %rsi + jz .Lschedule_mangle_last + call _vpaes_schedule_mangle + + # low round. swap xmm7 and xmm6 + pshufd \$0xFF, %xmm0, %xmm0 + movdqa %xmm7, %xmm5 + movdqa %xmm6, %xmm7 + call _vpaes_schedule_low_round + movdqa %xmm5, %xmm7 + + jmp .Loop_schedule_256 + + +## +## .aes_schedule_mangle_last +## +## Mangler for last round of key schedule +## Mangles %xmm0 +## when encrypting, outputs out(%xmm0) ^ 63 +## when decrypting, outputs unskew(%xmm0) +## +## Always called right before return... jumps to cleanup and exits +## +.align 16 +.Lschedule_mangle_last: + # schedule last round key from xmm0 + lea .Lk_deskew(%rip),%r11 # prepare to deskew + test %rcx, %rcx + jnz .Lschedule_mangle_last_dec + + # encrypting + movdqa (%r8,%r10),%xmm1 + pshufb %xmm1, %xmm0 # output permute + lea .Lk_opt(%rip), %r11 # prepare to output transform + add \$32, %rdx + +.Lschedule_mangle_last_dec: + add \$-16, %rdx + pxor .Lk_s63(%rip), %xmm0 + call _vpaes_schedule_transform # output transform + movdqu %xmm0, (%rdx) # save last key + + # cleanup + pxor %xmm0, %xmm0 + pxor %xmm1, %xmm1 + pxor %xmm2, %xmm2 + pxor %xmm3, %xmm3 + pxor %xmm4, %xmm4 + pxor %xmm5, %xmm5 + pxor %xmm6, %xmm6 + pxor %xmm7, %xmm7 + ret +.size _vpaes_schedule_core,.-_vpaes_schedule_core + +## +## .aes_schedule_192_smear +## +## Smear the short, low side in the 192-bit key schedule. +## +## Inputs: +## %xmm7: high side, b a x y +## %xmm6: low side, d c 0 0 +## %xmm13: 0 +## +## Outputs: +## %xmm6: b+c+d b+c 0 0 +## %xmm0: b+c+d b+c b a +## +.type _vpaes_schedule_192_smear,\@abi-omnipotent +.align 16 +_vpaes_schedule_192_smear: + pshufd \$0x80, %xmm6, %xmm1 # d c 0 0 -> c 0 0 0 + pshufd \$0xFE, %xmm7, %xmm0 # b a _ _ -> b b b a + pxor %xmm1, %xmm6 # -> c+d c 0 0 + pxor %xmm1, %xmm1 + pxor %xmm0, %xmm6 # -> b+c+d b+c b a + movdqa %xmm6, %xmm0 + movhlps %xmm1, %xmm6 # clobber low side with zeros + ret +.size _vpaes_schedule_192_smear,.-_vpaes_schedule_192_smear + +## +## .aes_schedule_round +## +## Runs one main round of the key schedule on %xmm0, %xmm7 +## +## Specifically, runs subbytes on the high dword of %xmm0 +## then rotates it by one byte and xors into the low dword of +## %xmm7. +## +## Adds rcon from low byte of %xmm8, then rotates %xmm8 for +## next rcon. +## +## Smears the dwords of %xmm7 by xoring the low into the +## second low, result into third, result into highest. +## +## Returns results in %xmm7 = %xmm0. +## Clobbers %xmm1-%xmm4, %r11. +## +.type _vpaes_schedule_round,\@abi-omnipotent +.align 16 +_vpaes_schedule_round: + # extract rcon from xmm8 + pxor %xmm1, %xmm1 + palignr \$15, %xmm8, %xmm1 + palignr \$15, %xmm8, %xmm8 + pxor %xmm1, %xmm7 + + # rotate + pshufd \$0xFF, %xmm0, %xmm0 + palignr \$1, %xmm0, %xmm0 + + # fall through... + + # low round: same as high round, but no rotation and no rcon. +_vpaes_schedule_low_round: + # smear xmm7 + movdqa %xmm7, %xmm1 + pslldq \$4, %xmm7 + pxor %xmm1, %xmm7 + movdqa %xmm7, %xmm1 + pslldq \$8, %xmm7 + pxor %xmm1, %xmm7 + pxor .Lk_s63(%rip), %xmm7 + + # subbytes + movdqa %xmm9, %xmm1 + pandn %xmm0, %xmm1 + psrld \$4, %xmm1 # 1 = i + pand %xmm9, %xmm0 # 0 = k + movdqa %xmm11, %xmm2 # 2 : a/k + pshufb %xmm0, %xmm2 # 2 = a/k + pxor %xmm1, %xmm0 # 0 = j + movdqa %xmm10, %xmm3 # 3 : 1/i + pshufb %xmm1, %xmm3 # 3 = 1/i + pxor %xmm2, %xmm3 # 3 = iak = 1/i + a/k + movdqa %xmm10, %xmm4 # 4 : 1/j + pshufb %xmm0, %xmm4 # 4 = 1/j + pxor %xmm2, %xmm4 # 4 = jak = 1/j + a/k + movdqa %xmm10, %xmm2 # 2 : 1/iak + pshufb %xmm3, %xmm2 # 2 = 1/iak + pxor %xmm0, %xmm2 # 2 = io + movdqa %xmm10, %xmm3 # 3 : 1/jak + pshufb %xmm4, %xmm3 # 3 = 1/jak + pxor %xmm1, %xmm3 # 3 = jo + movdqa %xmm13, %xmm4 # 4 : sbou + pshufb %xmm2, %xmm4 # 4 = sbou + movdqa %xmm12, %xmm0 # 0 : sbot + pshufb %xmm3, %xmm0 # 0 = sb1t + pxor %xmm4, %xmm0 # 0 = sbox output + + # add in smeared stuff + pxor %xmm7, %xmm0 + movdqa %xmm0, %xmm7 + ret +.size _vpaes_schedule_round,.-_vpaes_schedule_round + +## +## .aes_schedule_transform +## +## Linear-transform %xmm0 according to tables at (%r11) +## +## Requires that %xmm9 = 0x0F0F... as in preheat +## Output in %xmm0 +## Clobbers %xmm1, %xmm2 +## +.type _vpaes_schedule_transform,\@abi-omnipotent +.align 16 +_vpaes_schedule_transform: + movdqa %xmm9, %xmm1 + pandn %xmm0, %xmm1 + psrld \$4, %xmm1 + pand %xmm9, %xmm0 + movdqa (%r11), %xmm2 # lo + pshufb %xmm0, %xmm2 + movdqa 16(%r11), %xmm0 # hi + pshufb %xmm1, %xmm0 + pxor %xmm2, %xmm0 + ret +.size _vpaes_schedule_transform,.-_vpaes_schedule_transform + +## +## .aes_schedule_mangle +## +## Mangle xmm0 from (basis-transformed) standard version +## to our version. +## +## On encrypt, +## xor with 0x63 +## multiply by circulant 0,1,1,1 +## apply shiftrows transform +## +## On decrypt, +## xor with 0x63 +## multiply by "inverse mixcolumns" circulant E,B,D,9 +## deskew +## apply shiftrows transform +## +## +## Writes out to (%rdx), and increments or decrements it +## Keeps track of round number mod 4 in %r8 +## Preserves xmm0 +## Clobbers xmm1-xmm5 +## +.type _vpaes_schedule_mangle,\@abi-omnipotent +.align 16 +_vpaes_schedule_mangle: + movdqa %xmm0, %xmm4 # save xmm0 for later + movdqa .Lk_mc_forward(%rip),%xmm5 + test %rcx, %rcx + jnz .Lschedule_mangle_dec + + # encrypting + add \$16, %rdx + pxor .Lk_s63(%rip),%xmm4 + pshufb %xmm5, %xmm4 + movdqa %xmm4, %xmm3 + pshufb %xmm5, %xmm4 + pxor %xmm4, %xmm3 + pshufb %xmm5, %xmm4 + pxor %xmm4, %xmm3 + + jmp .Lschedule_mangle_both +.align 16 +.Lschedule_mangle_dec: + # inverse mix columns + lea .Lk_dksd(%rip),%r11 + movdqa %xmm9, %xmm1 + pandn %xmm4, %xmm1 + psrld \$4, %xmm1 # 1 = hi + pand %xmm9, %xmm4 # 4 = lo + + movdqa 0x00(%r11), %xmm2 + pshufb %xmm4, %xmm2 + movdqa 0x10(%r11), %xmm3 + pshufb %xmm1, %xmm3 + pxor %xmm2, %xmm3 + pshufb %xmm5, %xmm3 + + movdqa 0x20(%r11), %xmm2 + pshufb %xmm4, %xmm2 + pxor %xmm3, %xmm2 + movdqa 0x30(%r11), %xmm3 + pshufb %xmm1, %xmm3 + pxor %xmm2, %xmm3 + pshufb %xmm5, %xmm3 + + movdqa 0x40(%r11), %xmm2 + pshufb %xmm4, %xmm2 + pxor %xmm3, %xmm2 + movdqa 0x50(%r11), %xmm3 + pshufb %xmm1, %xmm3 + pxor %xmm2, %xmm3 + pshufb %xmm5, %xmm3 + + movdqa 0x60(%r11), %xmm2 + pshufb %xmm4, %xmm2 + pxor %xmm3, %xmm2 + movdqa 0x70(%r11), %xmm3 + pshufb %xmm1, %xmm3 + pxor %xmm2, %xmm3 + + add \$-16, %rdx + +.Lschedule_mangle_both: + movdqa (%r8,%r10),%xmm1 + pshufb %xmm1,%xmm3 + add \$-16, %r8 + and \$0x30, %r8 + movdqu %xmm3, (%rdx) + ret +.size _vpaes_schedule_mangle,.-_vpaes_schedule_mangle + +# +# Interface to OpenSSL +# +.globl ${PREFIX}_set_encrypt_key +.type ${PREFIX}_set_encrypt_key,\@function,3 +.align 16 +${PREFIX}_set_encrypt_key: +___ +$code.=<<___ if ($win64); + lea -0xb8(%rsp),%rsp + movaps %xmm6,0x10(%rsp) + movaps %xmm7,0x20(%rsp) + movaps %xmm8,0x30(%rsp) + movaps %xmm9,0x40(%rsp) + movaps %xmm10,0x50(%rsp) + movaps %xmm11,0x60(%rsp) + movaps %xmm12,0x70(%rsp) + movaps %xmm13,0x80(%rsp) + movaps %xmm14,0x90(%rsp) + movaps %xmm15,0xa0(%rsp) +.Lenc_key_body: +___ +$code.=<<___; + mov %esi,%eax + shr \$5,%eax + add \$5,%eax + mov %eax,240(%rdx) # AES_KEY->rounds = nbits/32+5; + + mov \$0,%ecx + mov \$0x30,%r8d + call _vpaes_schedule_core +___ +$code.=<<___ if ($win64); + movaps 0x10(%rsp),%xmm6 + movaps 0x20(%rsp),%xmm7 + movaps 0x30(%rsp),%xmm8 + movaps 0x40(%rsp),%xmm9 + movaps 0x50(%rsp),%xmm10 + movaps 0x60(%rsp),%xmm11 + movaps 0x70(%rsp),%xmm12 + movaps 0x80(%rsp),%xmm13 + movaps 0x90(%rsp),%xmm14 + movaps 0xa0(%rsp),%xmm15 + lea 0xb8(%rsp),%rsp +.Lenc_key_epilogue: +___ +$code.=<<___; + xor %eax,%eax + ret +.size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key + +.globl ${PREFIX}_set_decrypt_key +.type ${PREFIX}_set_decrypt_key,\@function,3 +.align 16 +${PREFIX}_set_decrypt_key: +___ +$code.=<<___ if ($win64); + lea -0xb8(%rsp),%rsp + movaps %xmm6,0x10(%rsp) + movaps %xmm7,0x20(%rsp) + movaps %xmm8,0x30(%rsp) + movaps %xmm9,0x40(%rsp) + movaps %xmm10,0x50(%rsp) + movaps %xmm11,0x60(%rsp) + movaps %xmm12,0x70(%rsp) + movaps %xmm13,0x80(%rsp) + movaps %xmm14,0x90(%rsp) + movaps %xmm15,0xa0(%rsp) +.Ldec_key_body: +___ +$code.=<<___; + mov %esi,%eax + shr \$5,%eax + add \$5,%eax + mov %eax,240(%rdx) # AES_KEY->rounds = nbits/32+5; + shl \$4,%eax + lea 16(%rdx,%rax),%rdx + + mov \$1,%ecx + mov %esi,%r8d + shr \$1,%r8d + and \$32,%r8d + xor \$32,%r8d # nbits==192?0:32 + call _vpaes_schedule_core +___ +$code.=<<___ if ($win64); + movaps 0x10(%rsp),%xmm6 + movaps 0x20(%rsp),%xmm7 + movaps 0x30(%rsp),%xmm8 + movaps 0x40(%rsp),%xmm9 + movaps 0x50(%rsp),%xmm10 + movaps 0x60(%rsp),%xmm11 + movaps 0x70(%rsp),%xmm12 + movaps 0x80(%rsp),%xmm13 + movaps 0x90(%rsp),%xmm14 + movaps 0xa0(%rsp),%xmm15 + lea 0xb8(%rsp),%rsp +.Ldec_key_epilogue: +___ +$code.=<<___; + xor %eax,%eax + ret +.size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key + +.globl ${PREFIX}_encrypt +.type ${PREFIX}_encrypt,\@function,3 +.align 16 +${PREFIX}_encrypt: +___ +$code.=<<___ if ($win64); + lea -0xb8(%rsp),%rsp + movaps %xmm6,0x10(%rsp) + movaps %xmm7,0x20(%rsp) + movaps %xmm8,0x30(%rsp) + movaps %xmm9,0x40(%rsp) + movaps %xmm10,0x50(%rsp) + movaps %xmm11,0x60(%rsp) + movaps %xmm12,0x70(%rsp) + movaps %xmm13,0x80(%rsp) + movaps %xmm14,0x90(%rsp) + movaps %xmm15,0xa0(%rsp) +.Lenc_body: +___ +$code.=<<___; + movdqu (%rdi),%xmm0 + call _vpaes_preheat + call _vpaes_encrypt_core + movdqu %xmm0,(%rsi) +___ +$code.=<<___ if ($win64); + movaps 0x10(%rsp),%xmm6 + movaps 0x20(%rsp),%xmm7 + movaps 0x30(%rsp),%xmm8 + movaps 0x40(%rsp),%xmm9 + movaps 0x50(%rsp),%xmm10 + movaps 0x60(%rsp),%xmm11 + movaps 0x70(%rsp),%xmm12 + movaps 0x80(%rsp),%xmm13 + movaps 0x90(%rsp),%xmm14 + movaps 0xa0(%rsp),%xmm15 + lea 0xb8(%rsp),%rsp +.Lenc_epilogue: +___ +$code.=<<___; + ret +.size ${PREFIX}_encrypt,.-${PREFIX}_encrypt + +.globl ${PREFIX}_decrypt +.type ${PREFIX}_decrypt,\@function,3 +.align 16 +${PREFIX}_decrypt: +___ +$code.=<<___ if ($win64); + lea -0xb8(%rsp),%rsp + movaps %xmm6,0x10(%rsp) + movaps %xmm7,0x20(%rsp) + movaps %xmm8,0x30(%rsp) + movaps %xmm9,0x40(%rsp) + movaps %xmm10,0x50(%rsp) + movaps %xmm11,0x60(%rsp) + movaps %xmm12,0x70(%rsp) + movaps %xmm13,0x80(%rsp) + movaps %xmm14,0x90(%rsp) + movaps %xmm15,0xa0(%rsp) +.Ldec_body: +___ +$code.=<<___; + movdqu (%rdi),%xmm0 + call _vpaes_preheat + call _vpaes_decrypt_core + movdqu %xmm0,(%rsi) +___ +$code.=<<___ if ($win64); + movaps 0x10(%rsp),%xmm6 + movaps 0x20(%rsp),%xmm7 + movaps 0x30(%rsp),%xmm8 + movaps 0x40(%rsp),%xmm9 + movaps 0x50(%rsp),%xmm10 + movaps 0x60(%rsp),%xmm11 + movaps 0x70(%rsp),%xmm12 + movaps 0x80(%rsp),%xmm13 + movaps 0x90(%rsp),%xmm14 + movaps 0xa0(%rsp),%xmm15 + lea 0xb8(%rsp),%rsp +.Ldec_epilogue: +___ +$code.=<<___; + ret +.size ${PREFIX}_decrypt,.-${PREFIX}_decrypt +___ +{ +my ($inp,$out,$len,$key,$ivp,$enc)=("%rdi","%rsi","%rdx","%rcx","%r8","%r9"); +# void AES_cbc_encrypt (const void char *inp, unsigned char *out, +# size_t length, const AES_KEY *key, +# unsigned char *ivp,const int enc); +$code.=<<___; +.globl ${PREFIX}_cbc_encrypt +.type ${PREFIX}_cbc_encrypt,\@function,6 +.align 16 +${PREFIX}_cbc_encrypt: + xchg $key,$len +___ +($len,$key)=($key,$len); +$code.=<<___; + sub \$16,$len + jc .Lcbc_abort +___ +$code.=<<___ if ($win64); + lea -0xb8(%rsp),%rsp + movaps %xmm6,0x10(%rsp) + movaps %xmm7,0x20(%rsp) + movaps %xmm8,0x30(%rsp) + movaps %xmm9,0x40(%rsp) + movaps %xmm10,0x50(%rsp) + movaps %xmm11,0x60(%rsp) + movaps %xmm12,0x70(%rsp) + movaps %xmm13,0x80(%rsp) + movaps %xmm14,0x90(%rsp) + movaps %xmm15,0xa0(%rsp) +.Lcbc_body: +___ +$code.=<<___; + movdqu ($ivp),%xmm6 # load IV + sub $inp,$out + call _vpaes_preheat + cmp \$0,${enc}d + je .Lcbc_dec_loop + jmp .Lcbc_enc_loop +.align 16 +.Lcbc_enc_loop: + movdqu ($inp),%xmm0 + pxor %xmm6,%xmm0 + call _vpaes_encrypt_core + movdqa %xmm0,%xmm6 + movdqu %xmm0,($out,$inp) + lea 16($inp),$inp + sub \$16,$len + jnc .Lcbc_enc_loop + jmp .Lcbc_done +.align 16 +.Lcbc_dec_loop: + movdqu ($inp),%xmm0 + movdqa %xmm0,%xmm7 + call _vpaes_decrypt_core + pxor %xmm6,%xmm0 + movdqa %xmm7,%xmm6 + movdqu %xmm0,($out,$inp) + lea 16($inp),$inp + sub \$16,$len + jnc .Lcbc_dec_loop +.Lcbc_done: + movdqu %xmm6,($ivp) # save IV +___ +$code.=<<___ if ($win64); + movaps 0x10(%rsp),%xmm6 + movaps 0x20(%rsp),%xmm7 + movaps 0x30(%rsp),%xmm8 + movaps 0x40(%rsp),%xmm9 + movaps 0x50(%rsp),%xmm10 + movaps 0x60(%rsp),%xmm11 + movaps 0x70(%rsp),%xmm12 + movaps 0x80(%rsp),%xmm13 + movaps 0x90(%rsp),%xmm14 + movaps 0xa0(%rsp),%xmm15 + lea 0xb8(%rsp),%rsp +.Lcbc_epilogue: +___ +$code.=<<___; +.Lcbc_abort: + ret +.size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt +___ +} +$code.=<<___; +## +## _aes_preheat +## +## Fills register %r10 -> .aes_consts (so you can -fPIC) +## and %xmm9-%xmm15 as specified below. +## +.type _vpaes_preheat,\@abi-omnipotent +.align 16 +_vpaes_preheat: + lea .Lk_s0F(%rip), %r10 + movdqa -0x20(%r10), %xmm10 # .Lk_inv + movdqa -0x10(%r10), %xmm11 # .Lk_inv+16 + movdqa 0x00(%r10), %xmm9 # .Lk_s0F + movdqa 0x30(%r10), %xmm13 # .Lk_sb1 + movdqa 0x40(%r10), %xmm12 # .Lk_sb1+16 + movdqa 0x50(%r10), %xmm15 # .Lk_sb2 + movdqa 0x60(%r10), %xmm14 # .Lk_sb2+16 + ret +.size _vpaes_preheat,.-_vpaes_preheat +######################################################## +## ## +## Constants ## +## ## +######################################################## +.type _vpaes_consts,\@object +.align 64 +_vpaes_consts: +.Lk_inv: # inv, inva + .quad 0x0E05060F0D080180, 0x040703090A0B0C02 + .quad 0x01040A060F0B0780, 0x030D0E0C02050809 + +.Lk_s0F: # s0F + .quad 0x0F0F0F0F0F0F0F0F, 0x0F0F0F0F0F0F0F0F + +.Lk_ipt: # input transform (lo, hi) + .quad 0xC2B2E8985A2A7000, 0xCABAE09052227808 + .quad 0x4C01307D317C4D00, 0xCD80B1FCB0FDCC81 + +.Lk_sb1: # sb1u, sb1t + .quad 0xB19BE18FCB503E00, 0xA5DF7A6E142AF544 + .quad 0x3618D415FAE22300, 0x3BF7CCC10D2ED9EF +.Lk_sb2: # sb2u, sb2t + .quad 0xE27A93C60B712400, 0x5EB7E955BC982FCD + .quad 0x69EB88400AE12900, 0xC2A163C8AB82234A +.Lk_sbo: # sbou, sbot + .quad 0xD0D26D176FBDC700, 0x15AABF7AC502A878 + .quad 0xCFE474A55FBB6A00, 0x8E1E90D1412B35FA + +.Lk_mc_forward: # mc_forward + .quad 0x0407060500030201, 0x0C0F0E0D080B0A09 + .quad 0x080B0A0904070605, 0x000302010C0F0E0D + .quad 0x0C0F0E0D080B0A09, 0x0407060500030201 + .quad 0x000302010C0F0E0D, 0x080B0A0904070605 + +.Lk_mc_backward:# mc_backward + .quad 0x0605040702010003, 0x0E0D0C0F0A09080B + .quad 0x020100030E0D0C0F, 0x0A09080B06050407 + .quad 0x0E0D0C0F0A09080B, 0x0605040702010003 + .quad 0x0A09080B06050407, 0x020100030E0D0C0F + +.Lk_sr: # sr + .quad 0x0706050403020100, 0x0F0E0D0C0B0A0908 + .quad 0x030E09040F0A0500, 0x0B06010C07020D08 + .quad 0x0F060D040B020900, 0x070E050C030A0108 + .quad 0x0B0E0104070A0D00, 0x0306090C0F020508 + +.Lk_rcon: # rcon + .quad 0x1F8391B9AF9DEEB6, 0x702A98084D7C7D81 + +.Lk_s63: # s63: all equal to 0x63 transformed + .quad 0x5B5B5B5B5B5B5B5B, 0x5B5B5B5B5B5B5B5B + +.Lk_opt: # output transform + .quad 0xFF9F4929D6B66000, 0xF7974121DEBE6808 + .quad 0x01EDBD5150BCEC00, 0xE10D5DB1B05C0CE0 + +.Lk_deskew: # deskew tables: inverts the sbox's "skew" + .quad 0x07E4A34047A4E300, 0x1DFEB95A5DBEF91A + .quad 0x5F36B5DC83EA6900, 0x2841C2ABF49D1E77 + +## +## Decryption stuff +## Key schedule constants +## +.Lk_dksd: # decryption key schedule: invskew x*D + .quad 0xFEB91A5DA3E44700, 0x0740E3A45A1DBEF9 + .quad 0x41C277F4B5368300, 0x5FDC69EAAB289D1E +.Lk_dksb: # decryption key schedule: invskew x*B + .quad 0x9A4FCA1F8550D500, 0x03D653861CC94C99 + .quad 0x115BEDA7B6FC4A00, 0xD993256F7E3482C8 +.Lk_dkse: # decryption key schedule: invskew x*E + 0x63 + .quad 0xD5031CCA1FC9D600, 0x53859A4C994F5086 + .quad 0xA23196054FDC7BE8, 0xCD5EF96A20B31487 +.Lk_dks9: # decryption key schedule: invskew x*9 + .quad 0xB6116FC87ED9A700, 0x4AED933482255BFC + .quad 0x4576516227143300, 0x8BB89FACE9DAFDCE + +## +## Decryption stuff +## Round function constants +## +.Lk_dipt: # decryption input transform + .quad 0x0F505B040B545F00, 0x154A411E114E451A + .quad 0x86E383E660056500, 0x12771772F491F194 + +.Lk_dsb9: # decryption sbox output *9*u, *9*t + .quad 0x851C03539A86D600, 0xCAD51F504F994CC9 + .quad 0xC03B1789ECD74900, 0x725E2C9EB2FBA565 +.Lk_dsbd: # decryption sbox output *D*u, *D*t + .quad 0x7D57CCDFE6B1A200, 0xF56E9B13882A4439 + .quad 0x3CE2FAF724C6CB00, 0x2931180D15DEEFD3 +.Lk_dsbb: # decryption sbox output *B*u, *B*t + .quad 0xD022649296B44200, 0x602646F6B0F2D404 + .quad 0xC19498A6CD596700, 0xF3FF0C3E3255AA6B +.Lk_dsbe: # decryption sbox output *E*u, *E*t + .quad 0x46F2929626D4D000, 0x2242600464B4F6B0 + .quad 0x0C55A6CDFFAAC100, 0x9467F36B98593E32 +.Lk_dsbo: # decryption sbox final output + .quad 0x1387EA537EF94000, 0xC7AA6DB9D4943E2D + .quad 0x12D7560F93441D00, 0xCA4B8159D8C58E9C +.asciz "Vector Permutaion AES for x86_64/SSSE3, Mike Hamburg (Stanford University)" +.align 64 +.size _vpaes_consts,.-_vpaes_consts +___ + +if ($win64) { +# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, +# CONTEXT *context,DISPATCHER_CONTEXT *disp) +$rec="%rcx"; +$frame="%rdx"; +$context="%r8"; +$disp="%r9"; + +$code.=<<___; +.extern __imp_RtlVirtualUnwind +.type se_handler,\@abi-omnipotent +.align 16 +se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 120($context),%rax # pull context->Rax + mov 248($context),%rbx # pull context->Rip + + mov 8($disp),%rsi # disp->ImageBase + mov 56($disp),%r11 # disp->HandlerData + + mov 0(%r11),%r10d # HandlerData[0] + lea (%rsi,%r10),%r10 # prologue label + cmp %r10,%rbx # context->Rip<prologue label + jb .Lin_prologue + + mov 152($context),%rax # pull context->Rsp + + mov 4(%r11),%r10d # HandlerData[1] + lea (%rsi,%r10),%r10 # epilogue label + cmp %r10,%rbx # context->Rip>=epilogue label + jae .Lin_prologue + + lea 16(%rax),%rsi # %xmm save area + lea 512($context),%rdi # &context.Xmm6 + mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) + .long 0xa548f3fc # cld; rep movsq + lea 0xb8(%rax),%rax # adjust stack pointer + +.Lin_prologue: + mov 8(%rax),%rdi + mov 16(%rax),%rsi + mov %rax,152($context) # restore context->Rsp + mov %rsi,168($context) # restore context->Rsi + mov %rdi,176($context) # restore context->Rdi + + mov 40($disp),%rdi # disp->ContextRecord + mov $context,%rsi # context + mov \$`1232/8`,%ecx # sizeof(CONTEXT) + .long 0xa548f3fc # cld; rep movsq + + mov $disp,%rsi + xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER + mov 8(%rsi),%rdx # arg2, disp->ImageBase + mov 0(%rsi),%r8 # arg3, disp->ControlPc + mov 16(%rsi),%r9 # arg4, disp->FunctionEntry + mov 40(%rsi),%r10 # disp->ContextRecord + lea 56(%rsi),%r11 # &disp->HandlerData + lea 24(%rsi),%r12 # &disp->EstablisherFrame + mov %r10,32(%rsp) # arg5 + mov %r11,40(%rsp) # arg6 + mov %r12,48(%rsp) # arg7 + mov %rcx,56(%rsp) # arg8, (NULL) + call *__imp_RtlVirtualUnwind(%rip) + + mov \$1,%eax # ExceptionContinueSearch + add \$64,%rsp + popfq + pop %r15 + pop %r14 + pop %r13 + pop %r12 + pop %rbp + pop %rbx + pop %rdi + pop %rsi + ret +.size se_handler,.-se_handler + +.section .pdata +.align 4 + .rva .LSEH_begin_${PREFIX}_set_encrypt_key + .rva .LSEH_end_${PREFIX}_set_encrypt_key + .rva .LSEH_info_${PREFIX}_set_encrypt_key + + .rva .LSEH_begin_${PREFIX}_set_decrypt_key + .rva .LSEH_end_${PREFIX}_set_decrypt_key + .rva .LSEH_info_${PREFIX}_set_decrypt_key + + .rva .LSEH_begin_${PREFIX}_encrypt + .rva .LSEH_end_${PREFIX}_encrypt + .rva .LSEH_info_${PREFIX}_encrypt + + .rva .LSEH_begin_${PREFIX}_decrypt + .rva .LSEH_end_${PREFIX}_decrypt + .rva .LSEH_info_${PREFIX}_decrypt + + .rva .LSEH_begin_${PREFIX}_cbc_encrypt + .rva .LSEH_end_${PREFIX}_cbc_encrypt + .rva .LSEH_info_${PREFIX}_cbc_encrypt + +.section .xdata +.align 8 +.LSEH_info_${PREFIX}_set_encrypt_key: + .byte 9,0,0,0 + .rva se_handler + .rva .Lenc_key_body,.Lenc_key_epilogue # HandlerData[] +.LSEH_info_${PREFIX}_set_decrypt_key: + .byte 9,0,0,0 + .rva se_handler + .rva .Ldec_key_body,.Ldec_key_epilogue # HandlerData[] +.LSEH_info_${PREFIX}_encrypt: + .byte 9,0,0,0 + .rva se_handler + .rva .Lenc_body,.Lenc_epilogue # HandlerData[] +.LSEH_info_${PREFIX}_decrypt: + .byte 9,0,0,0 + .rva se_handler + .rva .Ldec_body,.Ldec_epilogue # HandlerData[] +.LSEH_info_${PREFIX}_cbc_encrypt: + .byte 9,0,0,0 + .rva se_handler + .rva .Lcbc_body,.Lcbc_epilogue # HandlerData[] +___ +} + +$code =~ s/\`([^\`]*)\`/eval($1)/gem; + +print $code; + +close STDOUT; diff --git a/crypto/aes/internal.h b/crypto/aes/internal.h new file mode 100644 index 00000000..3dc5c637 --- /dev/null +++ b/crypto/aes/internal.h @@ -0,0 +1,87 @@ +/* ==================================================================== + * Copyright (c) 2002-2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== */ + +#ifndef OPENSSL_HEADER_AES_INTERNAL_H +#define OPENSSL_HEADER_AES_INTERNAL_H + +#include <openssl/base.h> + +#if defined(__cplusplus) +extern "C" { +#endif + + +#if defined(_MSC_VER) && \ + (defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64)) +#define SWAP(x) (_lrotl(x, 8) & 0x00ff00ff | _lrotr(x, 8) & 0xff00ff00) +#define GETU32(p) SWAP(*((uint32_t *)(p))) +#define PUTU32(ct, st) \ + { *((uint32_t *)(ct)) = SWAP((st)); } +#else +#define GETU32(pt) \ + (((uint32_t)(pt)[0] << 24) ^ ((uint32_t)(pt)[1] << 16) ^ \ + ((uint32_t)(pt)[2] << 8) ^ ((uint32_t)(pt)[3])) +#define PUTU32(ct, st) \ + { \ + (ct)[0] = (uint8_t)((st) >> 24); \ + (ct)[1] = (uint8_t)((st) >> 16); \ + (ct)[2] = (uint8_t)((st) >> 8); \ + (ct)[3] = (uint8_t)(st); \ + } +#endif + +#define MAXKC (256 / 32) +#define MAXKB (256 / 8) +#define MAXNR 14 + + +#if defined(__cplusplus) +} /* extern C */ +#endif + +#endif /* OPENSSL_HEADER_AES_INTERNAL_H */ diff --git a/crypto/aes/mode_wrappers.c b/crypto/aes/mode_wrappers.c new file mode 100644 index 00000000..0ee2326e --- /dev/null +++ b/crypto/aes/mode_wrappers.c @@ -0,0 +1,99 @@ +/* ==================================================================== + * Copyright (c) 2002-2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== */ + +#include <openssl/aes.h> + +#include "assert.h" + +#include <openssl/modes.h> + + +void AES_ctr128_encrypt(const uint8_t *in, uint8_t *out, size_t len, + const AES_KEY *key, uint8_t ivec[AES_BLOCK_SIZE], + uint8_t ecount_buf[AES_BLOCK_SIZE], unsigned int *num) { + CRYPTO_ctr128_encrypt(in, out, len, key, ivec, ecount_buf, num, + (block128_f)AES_encrypt); +} + +void AES_ecb_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key, + const int enc) { + assert(in && out && key); + assert((AES_ENCRYPT == enc) || (AES_DECRYPT == enc)); + + if (AES_ENCRYPT == enc) { + AES_encrypt(in, out, key); + } else { + AES_decrypt(in, out, key); + } +} + +#if defined(OPENSSL_NO_ASM) || \ + (!defined(OPENSSL_X86_64) && !defined(OPENSSL_X86)) +void AES_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t len, + const AES_KEY *key, uint8_t *ivec, const int enc) { + + if (enc) { + CRYPTO_cbc128_encrypt(in, out, len, key, ivec, (block128_f)AES_encrypt); + } else { + CRYPTO_cbc128_decrypt(in, out, len, key, ivec, (block128_f)AES_decrypt); + } +} +#endif + +void AES_ofb128_encrypt(const uint8_t *in, uint8_t *out, size_t length, + const AES_KEY *key, uint8_t *ivec, int *num) { + CRYPTO_ofb128_encrypt(in, out, length, key, ivec, num, + (block128_f)AES_encrypt); +} + +void AES_cfb128_encrypt(const uint8_t *in, uint8_t *out, size_t length, + const AES_KEY *key, uint8_t *ivec, int *num, + int enc) { + CRYPTO_cfb128_encrypt(in, out, length, key, ivec, num, enc, + (block128_f)AES_encrypt); +} |