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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpeccpset.c')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpeccpset.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpeccpset.c b/ext/ipp/sources/ippcp/pcpeccpset.c new file mode 100644 index 0000000..29cb438 --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpeccpset.c @@ -0,0 +1,150 @@ +/******************************************************************************* +* 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: +// ippsECCPSet() +// +*/ + +#include "owndefs.h" +#include "owncp.h" +#include "pcpeccp.h" + +/*F* +// Name: ippsECCPInitStdSM2 +// +// Purpose: Sets up the elliptic curve domain parameters +// over a prime finite field GF(p) +// +// Returns: Reason: +// ippStsNullPtrErr NULL == pPrime +// NULL == pA +// NULL == pB +// NULL == pGX +// NULL == pGY +// NULL == pOrder +// NULL == cofactor +// NULL == pEC +// +// ippStsContextMatchErr illegal pPrime->idCtx +// illegal pA->idCtx +// illegal pB->idCtx +// illegal pGX->idCtx +// illegal pGY->idCtx +// illegal pOrder->idCtx +// illegal pEC->idCtx +// +// ippStsRangeErr not enough room for: +// pPrime +// pA, pB, +// pGX, pGY +// pOrder +// +// ippStsNoErr no errors +// +// Parameters: +// pPrime pointer to the retrieval prime (specify FG(p)) +// pA pointer to the retrieval A coefficient of EC equation +// pB pointer to the retrieval B coefficient of EC equation +// pGX,pGY pointer to the retrieval Base Point (x and y coordinates) of EC +// pOrder pointer to the retrieval Base Point order +// cofactor pointer to the retrieval cofactor value +// pEC pointer to the ECC context +// +*F*/ + +IPPFUN(IppStatus, ippsECCPSet, (const IppsBigNumState* pPrime, + const IppsBigNumState* pA, const IppsBigNumState* pB, + const IppsBigNumState* pGX,const IppsBigNumState* pGY, + const IppsBigNumState* pOrder, int cofactor, + IppsECCPState* pEC)) +{ + /* test pEC */ + IPP_BAD_PTR1_RET(pEC); + /* use aligned EC context */ + pEC = (IppsGFpECState*)( IPP_ALIGNED_PTR(pEC, ECGFP_ALIGNMENT) ); + IPP_BADARG_RET(!ECP_TEST_ID(pEC), ippStsContextMatchErr); + + /* test pPrime */ + IPP_BAD_PTR1_RET(pPrime); + pPrime = (IppsBigNumState*)( IPP_ALIGNED_PTR(pPrime, BN_ALIGNMENT) ); + IPP_BADARG_RET(!BN_VALID_ID(pPrime), ippStsContextMatchErr); + IPP_BADARG_RET((cpBN_bitsize(pPrime)>GFP_FEBITLEN(GFP_PMA(ECP_GFP(pEC)))), ippStsRangeErr); + + /* test pA and pB */ + IPP_BAD_PTR2_RET(pA,pB); + pA = (IppsBigNumState*)( IPP_ALIGNED_PTR(pA, ALIGN_VAL) ); + pB = (IppsBigNumState*)( IPP_ALIGNED_PTR(pB, ALIGN_VAL) ); + IPP_BADARG_RET(!BN_VALID_ID(pA), ippStsContextMatchErr); + IPP_BADARG_RET(!BN_VALID_ID(pB), ippStsContextMatchErr); + IPP_BADARG_RET(BN_NEGATIVE(pA) || 0<=cpBN_cmp(pA,pPrime), ippStsRangeErr); + IPP_BADARG_RET(BN_NEGATIVE(pB) || 0<=cpBN_cmp(pB,pPrime), ippStsRangeErr); + + /* test pG and pGorder pointers */ + IPP_BAD_PTR3_RET(pGX,pGY, pOrder); + pGX = (IppsBigNumState*)( IPP_ALIGNED_PTR(pGX, ALIGN_VAL) ); + pGY = (IppsBigNumState*)( IPP_ALIGNED_PTR(pGY, ALIGN_VAL) ); + pOrder = (IppsBigNumState*)( IPP_ALIGNED_PTR(pOrder, ALIGN_VAL) ); + IPP_BADARG_RET(!BN_VALID_ID(pGX), ippStsContextMatchErr); + IPP_BADARG_RET(!BN_VALID_ID(pGY), ippStsContextMatchErr); + IPP_BADARG_RET(!BN_VALID_ID(pOrder), ippStsContextMatchErr); + IPP_BADARG_RET(BN_NEGATIVE(pGX) || 0<=cpBN_cmp(pGX,pPrime), ippStsRangeErr); + IPP_BADARG_RET(BN_NEGATIVE(pGY) || 0<=cpBN_cmp(pGY,pPrime), ippStsRangeErr); + IPP_BADARG_RET((cpBN_bitsize(pOrder)>ECP_ORDBITSIZE(pEC)), ippStsRangeErr); + + /* test cofactor */ + IPP_BADARG_RET(!(0<cofactor), ippStsRangeErr); + + return ECCPSetDP(ippsGFpMethod_pArb(), + BN_SIZE(pPrime), BN_NUMBER(pPrime), + BN_SIZE(pA), BN_NUMBER(pA), + BN_SIZE(pB), BN_NUMBER(pB), + BN_SIZE(pGX), BN_NUMBER(pGX), + BN_SIZE(pGY), BN_NUMBER(pGY), + BN_SIZE(pOrder), BN_NUMBER(pOrder), + (BNU_CHUNK_T)cofactor, + pEC); +} |