diff options
Diffstat (limited to 'C/Sha1.c')
| -rw-r--r-- | C/Sha1.c | 36 |
1 files changed, 33 insertions, 3 deletions
@@ -1,5 +1,5 @@ /* Sha1.c -- SHA-1 Hash -2021-04-01 : Igor Pavlov : Public domain +2021-07-13 : Igor Pavlov : Public domain This code is based on public domain code of Steve Reid from Wei Dai's Crypto++ library. */ #include "Precomp.h" @@ -34,7 +34,7 @@ This code is based on public domain code of Steve Reid from Wei Dai's Crypto++ l #endif #elif defined(MY_CPU_ARM_OR_ARM64) #ifdef _MSC_VER - #if _MSC_VER >= 1910 + #if _MSC_VER >= 1910 && _MSC_VER >= 1929 && _MSC_FULL_VER >= 192930037 #define _SHA_SUPPORTED #endif #elif defined(__clang__) @@ -435,7 +435,37 @@ void Sha1Prepare() #endif { // printf("\n========== HW SHA1 ======== \n"); - f = f_hw = Sha1_UpdateBlocks_HW; + #if defined(MY_CPU_ARM_OR_ARM64) && defined(_MSC_VER) + /* there was bug in MSVC compiler for ARM64 -O2 before version VS2019 16.10 (19.29.30037). + It generated incorrect SHA-1 code. + 21.03 : we test sha1-hardware code at runtime initialization */ + + #pragma message("== SHA1 code: MSC compiler : failure-check code was inserted") + + UInt32 state[5] = { 0, 1, 2, 3, 4 } ; + Byte data[64]; + unsigned i; + for (i = 0; i < sizeof(data); i += 2) + { + data[i ] = (Byte)(i); + data[i + 1] = (Byte)(i + 1); + } + + Sha1_UpdateBlocks_HW(state, data, sizeof(data) / 64); + + if ( state[0] != 0x9acd7297 + || state[1] != 0x4624d898 + || state[2] != 0x0bf079f0 + || state[3] != 0x031e61b3 + || state[4] != 0x8323fe20) + { + // printf("\n========== SHA-1 hardware version failure ======== \n"); + } + else + #endif + { + f = f_hw = Sha1_UpdateBlocks_HW; + } } g_FUNC_UPDATE_BLOCKS = f; g_FUNC_UPDATE_BLOCKS_HW = f_hw; |