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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpgfpsetelem.c')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpgfpsetelem.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpgfpsetelem.c b/ext/ipp/sources/ippcp/pcpgfpsetelem.c new file mode 100644 index 0000000..500324c --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpgfpsetelem.c @@ -0,0 +1,113 @@ +/******************************************************************************* +* 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; + } +} |