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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpecc_psetdp.c')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpecc_psetdp.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpecc_psetdp.c b/ext/ipp/sources/ippcp/pcpecc_psetdp.c new file mode 100644 index 0000000..fe7a555 --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpecc_psetdp.c @@ -0,0 +1,154 @@ +/******************************************************************************* +* Copyright 2003-2018 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. +// EC over Prime Finite Field (setup/retrieve domain parameters) +// +// Contents: +// ECCPSetDP() +// +*/ + +#include "owndefs.h" +#include "owncp.h" +#include "pcpeccp.h" + +/*F* +// Name: ippsECCPSet +// +// Purpose: Set EC Domain Parameters. +// +// Returns: Reason: +// ippStsNullPtrErr NULL == pPrime +// NULL == pA +// NULL == pB +// NULL == pGX +// NULL == pGY +// NULL == pOrder +// NULL == pECC +// +// ippStsContextMatchErr illegal pPrime->idCtx +// illegal pA->idCtx +// illegal pB->idCtx +// illegal pGX->idCtx +// illegal pGY->idCtx +// illegal pOrder->idCtx +// illegal pECC->idCtx +// +// ippStsRangeErr not enough room for: +// pPrime +// pA, pB, +// pGX,pGY +// pOrder +// +// ippStsRangeErr 0>= cofactor +// +// ippStsNoErr no errors +// +// Parameters: +// pPrime pointer to the prime (specify FG(p)) +// pA pointer to the A coefficient of EC equation +// pB pointer to the B coefficient of EC equation +// pGX,pGY pointer to the Base Point (x and y coordinates) of EC +// pOrder pointer to the Base Point order +// cofactor cofactor value +// pECC pointer to the ECC context +// +*F*/ +IppStatus ECCPSetDP(const IppsGFpMethod* method, + int pLen, const BNU_CHUNK_T* pP, + int aLen, const BNU_CHUNK_T* pA, + int bLen, const BNU_CHUNK_T* pB, + int xLen, const BNU_CHUNK_T* pX, + int yLen, const BNU_CHUNK_T* pY, + int rLen, const BNU_CHUNK_T* pR, + BNU_CHUNK_T h, + IppsGFpECState* pEC) +{ + IPP_BADARG_RET(!ECP_TEST_ID(pEC), ippStsContextMatchErr); + + { + IppsGFpState * pGF = ECP_GFP(pEC); + + IppStatus sts = ippStsNoErr; + IppsBigNumState P, H; + int primeBitSize = BITSIZE_BNU(pP, pLen); + //cpConstructBN(&P, pLen, (BNU_CHUNK_T*)pP, NULL); + //sts = cpGFpSetGFp(&P, primeBitSize, method, pGF); + cpGFpSetGFp(pP, primeBitSize, method, pGF); + + if(ippStsNoErr==sts) { + gsModEngine* pGFE = GFP_PMA(pGF); + + do { + int elemLen = GFP_FELEN(pGFE); + IppsGFpElement elmA, elmB; + + /* convert A ans B coeffs into GF elements */ + cpGFpElementConstruct(&elmA, cpGFpGetPool(1, pGFE), elemLen); + cpGFpElementConstruct(&elmB, cpGFpGetPool(1, pGFE), elemLen); + sts = ippsGFpSetElement((Ipp32u*)pA, BITS2WORD32_SIZE(BITSIZE_BNU(pA,aLen)), &elmA, pGF); + if(ippStsNoErr!=sts) break; + sts = ippsGFpSetElement((Ipp32u*)pB, BITS2WORD32_SIZE(BITSIZE_BNU(pB,bLen)), &elmB, pGF); + if(ippStsNoErr!=sts) break; + /* and set EC */ + sts = ippsGFpECSet(&elmA, &elmB, pEC); + if(ippStsNoErr!=sts) break; + + /* convert GX ans GY coeffs into GF elements */ + cpConstructBN(&P, rLen, (BNU_CHUNK_T*)pR, NULL); + cpConstructBN(&H, 1, &h, NULL); + sts = ippsGFpSetElement((Ipp32u*)pX, BITS2WORD32_SIZE(BITSIZE_BNU(pX,xLen)), &elmA, pGF); + if(ippStsNoErr!=sts) break; + sts = ippsGFpSetElement((Ipp32u*)pY, BITS2WORD32_SIZE(BITSIZE_BNU(pY,yLen)), &elmB, pGF); + if(ippStsNoErr!=sts) break; + /* and init EC subgroup */ + sts = ippsGFpECSetSubgroup(&elmA, &elmB, &P, &H, pEC); + } while(0); + + cpGFpReleasePool(2, pGFE); + } + + return sts; + } +} |