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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpsha256ca.c')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpsha256ca.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpsha256ca.c b/ext/ipp/sources/ippcp/pcpsha256ca.c new file mode 100644 index 0000000..1d83767 --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpsha256ca.c @@ -0,0 +1,88 @@ +/******************************************************************************* +* Copyright 2002-2018 Intel Corporation +* All Rights Reserved. +* +* If this software was obtained under the Intel Simplified Software License, +* the following terms apply: +* +* The source code, information and material ("Material") contained herein is +* owned by Intel Corporation or its suppliers or licensors, and title to such +* Material remains with Intel Corporation or its suppliers or licensors. The +* Material contains proprietary information of Intel or its suppliers and +* licensors. The Material is protected by worldwide copyright laws and treaty +* provisions. No part of the Material may be used, copied, reproduced, +* modified, published, uploaded, posted, transmitted, distributed or disclosed +* in any way without Intel's prior express written permission. No license under +* any patent, copyright or other intellectual property rights in the Material +* is granted to or conferred upon you, either expressly, by implication, +* inducement, estoppel or otherwise. Any license under such intellectual +* property rights must be express and approved by Intel in writing. +* +* Unless otherwise agreed by Intel in writing, you may not remove or alter this +* notice or any other notice embedded in Materials by Intel or Intel's +* suppliers or licensors in any way. +* +* +* If this software was obtained under the Apache License, Version 2.0 (the +* "License"), the following terms apply: +* +* You may not use this file except in compliance with the License. You may +* obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 +* +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* +* See the License for the specific language governing permissions and +* limitations under the License. +*******************************************************************************/ + +/* +// +// Purpose: +// Cryptography Primitive. +// Digesting message according to SHA256 +// +// Contents: +// cpFinalizeSHA256() +// +// +*/ + +#include "owndefs.h" +#include "owncp.h" +#include "pcphash.h" +#include "pcphash_rmf.h" +#include "pcptool.h" +#include "pcpsha256stuff.h" + +void cpFinalizeSHA256(DigestSHA256 pHash, const Ipp8u* inpBuffer, int inpLen, Ipp64u processedMsgLen) +{ + /* select processing function */ + #if (_SHA_NI_ENABLING_==_FEATURE_ON_) + cpHashProc updateFunc = UpdateSHA256ni; + #elif (_SHA_NI_ENABLING_==_FEATURE_TICKTOCK_) + cpHashProc updateFunc = IsFeatureEnabled(ippCPUID_SHA)? UpdateSHA256ni : UpdateSHA256; + #else + cpHashProc updateFunc = UpdateSHA256; + #endif + + /* local buffer and it length */ + Ipp8u buffer[MBS_SHA256*2]; + int bufferLen = inpLen < (MBS_SHA256-(int)MLR_SHA256)? MBS_SHA256 : MBS_SHA256*2; + + /* copy rest of message into internal buffer */ + CopyBlock(inpBuffer, buffer, inpLen); + + /* padd message */ + buffer[inpLen++] = 0x80; + PaddBlock(0, buffer+inpLen, bufferLen-inpLen-MLR_SHA256); + + /* put processed message length in bits */ + processedMsgLen = ENDIANNESS64(processedMsgLen<<3); + ((Ipp64u*)(buffer+bufferLen))[-1] = processedMsgLen; + + /* copmplete hash computation */ + updateFunc(pHash, buffer, bufferLen, sha256_cnt); +}
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