diff options
Diffstat (limited to 'iterhash.cpp')
| -rw-r--r-- | iterhash.cpp | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/iterhash.cpp b/iterhash.cpp index f8be97d9..bdc99ec5 100644 --- a/iterhash.cpp +++ b/iterhash.cpp @@ -83,14 +83,11 @@ template <class T, class BASE> byte * IteratedHashBase<T, BASE>::CreateUpdateSpa template <class T, class BASE> size_t IteratedHashBase<T, BASE>::HashMultipleBlocks(const T *input, size_t length)
{
-#if CRYPTOPP_BOOL_SSE_SHA_INTRINSICS_AVAILABLE
- // SHA-1 and SHA-256 only
- static const bool noReverse = HasSHA() && this->BlockSize() <= 64;
-#else
- const bool noReverse = NativeByteOrderIs(this->GetByteOrder());
-#endif
-
+ // Hardware based SHA1 and SHA256 correct blocks themselves due to hardware requirements.
+ // For Intel, SHA1 will effectively call ByteReverse(). SHA256 formats data to Intel
+ // requirements, which means eight words ABCD EFGH are transformed to ABEF CDGH.
unsigned int blockSize = this->BlockSize();
+ bool noReverse = NativeByteOrderIs(this->GetByteOrder());
T* dataBuf = this->DataBuf();
do
{
|