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/*******************************************************************************
* Copyright 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.
*******************************************************************************/
/*
// Intel(R) Integrated Performance Primitives. Cryptography Primitives.
// Operations over GF(p).
//
// Context:
// ippsGFpSetElement()
//
*/
#include "owndefs.h"
#include "owncp.h"
#include "pcpgfpstuff.h"
#include "pcpgfpxstuff.h"
#include "pcptool.h"
//tbcd: temporary excluded: #include <assert.h>
/*F*
// Name: ippsGFpSetElement
//
// Purpose: Set GF Element
//
// Returns: Reason:
// ippStsNullPtrErr NULL == pGFp
// NULL == pR
// NULL == pA && lenA>0
//
// ippStsContextMatchErr invalid pGFp->idCtx
// invalid pR->idCtx
//
// ippStsSizeErr pA && !(0<=lenA && lenA<GFP_FELEN32())
//
// ippStsOutOfRangeErr GFPE_ROOM() != GFP_FELEN()
// BNU representation of pA[i]..pA[i+GFP_FELEN32()-1] >= modulus
//
// ippStsNoErr no error
//
// Parameters:
// pA pointer to the data representation Finite Field element
// lenA length of Finite Field data representation array
// pR pointer to Finite Field Element context
// pGFp pointer to Finite Field context
*F*/
IPPFUN(IppStatus, ippsGFpSetElement,(const Ipp32u* pA, int lenA, IppsGFpElement* pR, IppsGFpState* pGFp))
{
IPP_BAD_PTR2_RET(pR, pGFp);
pGFp = (IppsGFpState*)( IPP_ALIGNED_PTR(pGFp, GFP_ALIGNMENT) );
IPP_BADARG_RET( !GFP_TEST_ID(pGFp), ippStsContextMatchErr );
IPP_BADARG_RET( !GFPE_TEST_ID(pR), ippStsContextMatchErr );
IPP_BADARG_RET( !pA && (0<lenA), ippStsNullPtrErr);
IPP_BADARG_RET( pA && !(0<=lenA && lenA<=GFP_FELEN32(GFP_PMA(pGFp))), ippStsSizeErr );
IPP_BADARG_RET( GFPE_ROOM(pR)!=GFP_FELEN(GFP_PMA(pGFp)), ippStsOutOfRangeErr );
{
IppStatus sts = ippStsNoErr;
gsModEngine* pGFE = GFP_PMA(pGFp);
int elemLen = GFP_FELEN(pGFE);
BNU_CHUNK_T* pTmp = cpGFpGetPool(1, pGFE);
//tbcd: temporary excluded: assert(NULL!=pTmp);
ZEXPAND_BNU(pTmp, 0, elemLen);
if(pA && lenA)
cpGFpxCopyToChunk(pTmp, pA, lenA, pGFE);
if(!cpGFpxSet(GFPE_DATA(pR), pTmp, elemLen, pGFE))
sts = ippStsOutOfRangeErr;
cpGFpReleasePool(1, pGFE);
return sts;
}
}
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