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Diffstat (limited to 'neon/blake2s-round.h')
| -rw-r--r-- | neon/blake2s-round.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/neon/blake2s-round.h b/neon/blake2s-round.h new file mode 100644 index 0000000..b32c3ad --- /dev/null +++ b/neon/blake2s-round.h @@ -0,0 +1,70 @@ +/* + BLAKE2 reference source code package - optimized C implementations + + Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the + terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at + your option. The terms of these licenses can be found at: + + - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0 + - OpenSSL license : https://www.openssl.org/source/license.html + - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0 + + More information about the BLAKE2 hash function can be found at + https://blake2.net. +*/ +#ifndef BLAKE2S_ROUND_H +#define BLAKE2S_ROUND_H + +#define vrorq_n_u32_16(x) vreinterpretq_u32_u16( \ + vrev32q_u16( \ + vreinterpretq_u16_u32(x))) + +#define vrorq_n_u32_12(x) vorrq_u32( \ + vshrq_n_u32(x, 12), \ + vshlq_n_u32(x, 20)); + +#define vrorq_n_u32_8(x) vorrq_u32( \ + vshrq_n_u32(x, 8), \ + vshlq_n_u32(x, 24)); + +#define vrorq_n_u32_7(x) vorrq_u32( \ + vshrq_n_u32(x, 7), \ + vshlq_n_u32(x, 25)); + +#define G1(row1,row2,row3,row4,buf) \ + row1 = vaddq_u32(row1, vaddq_u32(row2, buf)); \ + row4 = vrorq_n_u32_16(veorq_u32(row4, row1)); \ + row3 = vaddq_u32(row3, row4); \ + row2 = vrorq_n_u32_12(veorq_u32(row2, row3)); + +#define G2(row1, row2, row3, row4,buf) \ + row1 = vaddq_u32(row1, vaddq_u32(row2, buf)); \ + row4 = vrorq_n_u32_8(veorq_u32(row4, row1)); \ + row3 = vaddq_u32(row3, row4); \ + row2 = vrorq_n_u32_7(veorq_u32(row2, row3)); + +#define DIAGONALIZE(row1,row2,row3,row4) \ + row2 = vextq_u32(row2, row2, 1); \ + row3 = vextq_u32(row3, row3, 2); \ + row4 = vextq_u32(row4, row4, 3); + +#define UNDIAGONALIZE(row1,row2,row3,row4) \ + row2 = vextq_u32(row2, row2, 3); \ + row3 = vextq_u32(row3, row3, 2); \ + row4 = vextq_u32(row4, row4, 1); + +#include "blake2s-load-neon.h" + +#define ROUND(r) \ + LOAD_MSG_ ##r ##_1(buf1); \ + G1(row1, row2, row3, row4, buf1); \ + LOAD_MSG_ ##r ##_2(buf2); \ + G2(row1, row2, row3, row4, buf2); \ + DIAGONALIZE(row1, row2, row3, row4); \ + LOAD_MSG_ ##r ##_3(buf3); \ + G1(row1, row2, row3, row4, buf3); \ + LOAD_MSG_ ##r ##_4(buf4); \ + G2(row1, row2, row3, row4, buf4); \ + UNDIAGONALIZE(row1, row2, row3, row4); + +#endif |