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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2017-11-27 09:10:17 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2017-11-27 16:16:35 +0100 |
| commit | f53eb8e260d174153bb3fc24ff1fff7966dcfbee (patch) | |
| tree | b8e5263c7fc7e90177ca7c296f6bc493fc735877 /src/Common | |
| parent | 685fad2d5d56ff1049ba2f5c8b901bca5a4a07bd (diff) | |
| download | VeraCrypt-f53eb8e260d174153bb3fc24ff1fff7966dcfbee.tar.gz VeraCrypt-f53eb8e260d174153bb3fc24ff1fff7966dcfbee.zip | |
SIMD speed optimization for Kuznyechik cipher implementation (up to 2x speedup). Based on https://github.com/aprelev/libgost15.
Diffstat (limited to 'src/Common')
| -rw-r--r-- | src/Common/Crypto.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/Common/Crypto.c b/src/Common/Crypto.c index c7b0c73d..3f7e9871 100644 --- a/src/Common/Crypto.c +++ b/src/Common/Crypto.c @@ -255,6 +255,20 @@ void EncipherBlocks (int cipher, void *dataPtr, void *ks, size_t blockCount) camellia_encrypt_blocks(ks, data, data, (uint32) blockCount); } #endif +#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE && !defined (_UEFI) + else if (cipher == KUZNYECHIK + && HasSSE2() +#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64) + && (blockCount >= 4) && NT_SUCCESS (KeSaveFloatingPointState (&floatingPointState)) +#endif + ) + { + kuznyechik_encrypt_blocks (data, data, blockCount, ks); +#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64) + KeRestoreFloatingPointState (&floatingPointState); +#endif + } +#endif else if (cipher == GOST89) { gost_encrypt(data, data, ks, (int)blockCount); } @@ -358,6 +372,20 @@ void DecipherBlocks (int cipher, void *dataPtr, void *ks, size_t blockCount) camellia_decrypt_blocks(ks, data, data, (uint32) blockCount); } #endif +#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE && !defined (_UEFI) + else if (cipher == KUZNYECHIK + && HasSSE2() +#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64) + && (blockCount >= 4) && NT_SUCCESS (KeSaveFloatingPointState (&floatingPointState)) +#endif + ) + { + kuznyechik_decrypt_blocks (data, data, blockCount, ks); +#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64) + KeRestoreFloatingPointState (&floatingPointState); +#endif + } +#endif else if (cipher == GOST89) { gost_decrypt(data, data, ks, (int)blockCount); } @@ -429,6 +457,7 @@ BOOL CipherSupportsIntraDataUnitParallelization (int cipher) || (cipher == GOST89) #if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE && !defined (_UEFI) || (cipher == SERPENT && HasSSE2()) + || (cipher == KUZNYECHIK && HasSSE2()) #endif #if CRYPTOPP_BOOL_X64 || (cipher == TWOFISH) |