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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpsha256_messagedigest.c')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpsha256_messagedigest.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpsha256_messagedigest.c b/ext/ipp/sources/ippcp/pcpsha256_messagedigest.c new file mode 100644 index 0000000..6902f8c --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpsha256_messagedigest.c @@ -0,0 +1,110 @@ +/******************************************************************************* +* 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. +*******************************************************************************/ +/******* FILE MODIFIED FROM ORIGINAL 2019u1 RELEASE TO AVOID WARNINGS *********/ +/* +// +// Purpose: +// Cryptography Primitive. +// Digesting message according to SHA256 +// +// Contents: +// cpSHA256MessageDigest() +// +*/ + +#include "owndefs.h" +#include "owncp.h" +#include "pcphash.h" +#include "pcphash_rmf.h" +#include "pcptool.h" +#include "pcpsha256stuff.h" + +IppStatus cpSHA256MessageDigest(DigestSHA256 hash, const Ipp8u* pMsg, int msgLen, const DigestSHA256 IV) +{ + /* test digest pointer */ + IPP_BAD_PTR1_RET(hash); + /* test message length */ + IPP_BADARG_RET((msgLen<0), ippStsLengthErr); + /* test message pointer */ + IPP_BADARG_RET((msgLen && !pMsg), ippStsNullPtrErr); + + { + /* 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 + + /* message length in the multiple MBS and the rest */ + int msgLenBlks = msgLen & (-MBS_SHA256); + int msgLenRest = msgLen % MBS_SHA256; + + /* init hash */ + hash[0] = IV[0]; + hash[1] = IV[1]; + hash[2] = IV[2]; + hash[3] = IV[3]; + hash[4] = IV[4]; + hash[5] = IV[5]; + hash[6] = IV[6]; + hash[7] = IV[7]; + + /* process main part of the message */ + if(msgLenBlks) { + updateFunc(hash, pMsg, msgLenBlks, sha256_cnt); + pMsg += msgLenBlks; + } + + cpFinalizeSHA256(hash, pMsg, msgLenRest, msgLen); + hash[0] = ENDIANNESS32(hash[0]); + hash[1] = ENDIANNESS32(hash[1]); + hash[2] = ENDIANNESS32(hash[2]); + hash[3] = ENDIANNESS32(hash[3]); + hash[4] = ENDIANNESS32(hash[4]); + hash[5] = ENDIANNESS32(hash[5]); + hash[6] = ENDIANNESS32(hash[6]); + hash[7] = ENDIANNESS32(hash[7]); + + return ippStsNoErr; + } +} |