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/*******************************************************************************
* Copyright 2016-2018 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.
// Security Hash Standard
// Generalized Functionality
//
// Contents:
// ippsHashMessage_rmf()
//
*/
#include "owndefs.h"
#include "owncp.h"
#include "pcphash_rmf.h"
#include "pcptool.h"
/*F*
// Name: ippsHashMessage_rmf
//
// Purpose: Hash of the whole message.
//
// Returns: Reason:
// ippStsNullPtrErr pMD == NULL
// pMsg == NULL but len!=0
// ippStsLengthErr len <0
// ippStsNoErr no errors
//
// Parameters:
// pMsg pointer to the input message
// len input message length
// pMD address of the output digest
// pMethod hash methods
//
*F*/
IPPFUN(IppStatus, ippsHashMessage_rmf,(const Ipp8u* pMsg, int len, Ipp8u* pMD, const IppsHashMethod* pMethod))
{
/* test method pointer */
IPP_BAD_PTR1_RET(pMethod);
/* test digest pointer */
IPP_BAD_PTR1_RET(pMD);
/* test message length */
IPP_BADARG_RET(0>len, ippStsLengthErr);
IPP_BADARG_RET((len && !pMsg), ippStsNullPtrErr);
{
/* message length in the multiple MBS and the rest */
int msgLenBlks = len &(-pMethod->msgBlkSize);
int msgLenRest = len - msgLenBlks;
/* init hash */
DigestSHA512 hash;
pMethod->hashInit(hash);
/* process main part of the message */
if(msgLenBlks) {
pMethod->hashUpdate(hash, pMsg, msgLenBlks);
pMsg += msgLenBlks;
}
cpFinalize_rmf(hash,
pMsg, msgLenRest,
len, 0,
pMethod);
pMethod->hashOctStr(pMD, hash);
return ippStsNoErr;
}
}
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