diff options
Diffstat (limited to 'mysql/extra/yassl/taocrypt/src/hash.cpp')
| -rw-r--r-- | mysql/extra/yassl/taocrypt/src/hash.cpp | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/mysql/extra/yassl/taocrypt/src/hash.cpp b/mysql/extra/yassl/taocrypt/src/hash.cpp deleted file mode 100644 index c176e6a..0000000 --- a/mysql/extra/yassl/taocrypt/src/hash.cpp +++ /dev/null @@ -1,191 +0,0 @@ -/* - Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; version 2 of the License. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; see the file COPYING. If not, write to the - Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, - MA 02110-1301 USA. -*/ - -/* hash.cpp implements a base for digest types -*/ - -#include "runtime.hpp" -#include <string.h> - -#include "hash.hpp" - - -namespace TaoCrypt { - - -HASHwithTransform::HASHwithTransform(word32 digSz, word32 buffSz) -{ -} - - -void HASHwithTransform::AddLength(word32 len) -{ - HashLengthType tmp = loLen_; - if ( (loLen_ += len) < tmp) - hiLen_++; // carry low to high - hiLen_ += SafeRightShift<8*sizeof(HashLengthType)>(len); -} - - -// Update digest with data of size len, do in blocks -void HASHwithTransform::Update(const byte* data, word32 len) -{ - // do block size increments - word32 blockSz = getBlockSize(); - byte* local = reinterpret_cast<byte*>(buffer_); - - while (len) { - word32 add = min(len, blockSz - buffLen_); - memcpy(&local[buffLen_], data, add); - - buffLen_ += add; - data += add; - len -= add; - - if (buffLen_ == blockSz) { - ByteReverseIf(local, local, blockSz, getByteOrder()); - Transform(); - AddLength(blockSz); - buffLen_ = 0; - } - } -} - - -// Final process, place digest in hash -void HASHwithTransform::Final(byte* hash) -{ - word32 blockSz = getBlockSize(); - word32 digestSz = getDigestSize(); - word32 padSz = getPadSize(); - ByteOrder order = getByteOrder(); - - AddLength(buffLen_); // before adding pads - HashLengthType preLoLen = GetBitCountLo(); - HashLengthType preHiLen = GetBitCountHi(); - byte* local = reinterpret_cast<byte*>(buffer_); - - local[buffLen_++] = 0x80; // add 1 - - // pad with zeros - if (buffLen_ > padSz) { - memset(&local[buffLen_], 0, blockSz - buffLen_); - buffLen_ += blockSz - buffLen_; - - ByteReverseIf(local, local, blockSz, order); - Transform(); - buffLen_ = 0; - } - memset(&local[buffLen_], 0, padSz - buffLen_); - - ByteReverseIf(local, local, blockSz, order); - - memcpy(&local[padSz], order ? &preHiLen : &preLoLen, sizeof(preLoLen)); - memcpy(&local[padSz+4], order ? &preLoLen : &preHiLen, sizeof(preLoLen)); - - Transform(); - ByteReverseIf(digest_, digest_, digestSz, order); - memcpy(hash, digest_, digestSz); - - Init(); // reset state -} - - -#ifdef WORD64_AVAILABLE - -HASH64withTransform::HASH64withTransform(word32 digSz, word32 buffSz) -{ -} - - -void HASH64withTransform::AddLength(word32 len) -{ - HashLengthType tmp = loLen_; - if ( (loLen_ += len) < tmp) - hiLen_++; // carry low to high - hiLen_ += SafeRightShift<8*sizeof(HashLengthType)>(len); -} - - -// Update digest with data of size len, do in blocks -void HASH64withTransform::Update(const byte* data, word32 len) -{ - // do block size increments - word32 blockSz = getBlockSize(); - byte* local = reinterpret_cast<byte*>(buffer_); - - while (len) { - word32 add = min(len, blockSz - buffLen_); - memcpy(&local[buffLen_], data, add); - - buffLen_ += add; - data += add; - len -= add; - - if (buffLen_ == blockSz) { - ByteReverseIf(buffer_, buffer_, blockSz, getByteOrder()); - Transform(); - AddLength(blockSz); - buffLen_ = 0; - } - } -} - - -// Final process, place digest in hash -void HASH64withTransform::Final(byte* hash) -{ - word32 blockSz = getBlockSize(); - word32 digestSz = getDigestSize(); - word32 padSz = getPadSize(); - ByteOrder order = getByteOrder(); - - AddLength(buffLen_); // before adding pads - HashLengthType preLoLen = GetBitCountLo(); - HashLengthType preHiLen = GetBitCountHi(); - byte* local = reinterpret_cast<byte*>(buffer_); - - local[buffLen_++] = 0x80; // add 1 - - // pad with zeros - if (buffLen_ > padSz) { - memset(&local[buffLen_], 0, blockSz - buffLen_); - buffLen_ += blockSz - buffLen_; - - ByteReverseIf(buffer_, buffer_, blockSz, order); - Transform(); - buffLen_ = 0; - } - memset(&local[buffLen_], 0, padSz - buffLen_); - - ByteReverseIf(buffer_, buffer_, padSz, order); - - buffer_[blockSz / sizeof(word64) - 2] = order ? preHiLen : preLoLen; - buffer_[blockSz / sizeof(word64) - 1] = order ? preLoLen : preHiLen; - - Transform(); - ByteReverseIf(digest_, digest_, digestSz, order); - memcpy(hash, digest_, digestSz); - - Init(); // reset state -} - -#endif // WORD64_AVAILABLE - - -} // namespace |