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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpgfpecbindstd384r1.c')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpgfpecbindstd384r1.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpgfpecbindstd384r1.c b/ext/ipp/sources/ippcp/pcpgfpecbindstd384r1.c new file mode 100644 index 0000000..16cec1f --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpgfpecbindstd384r1.c @@ -0,0 +1,123 @@ +/******************************************************************************* +* Copyright 2010-2018 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. +// EC over GF(p^m) definitinons +// +// Context: +// ippsGFpECBindGxyTblStd384r1() +// +*/ + +#include "owndefs.h" +#include "owncp.h" +#include "pcpgfpecstuff.h" +#include "pcpeccp.h" + + + +static IppStatus cpGFpECBindGxyTbl(const BNU_CHUNK_T* pPrime, + const cpPrecompAP* preComp, + IppsGFpECState* 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); + + { + IppsGFpState* pGF = ECP_GFP(pEC); + gsModEngine* pGFE = GFP_PMA(pGF); + Ipp32u elemLen = GFP_FELEN(pGFE); + + /* test if GF is prime GF */ + IPP_BADARG_RET(!GFP_IS_BASIC(pGFE), ippStsBadArgErr); + /* test underlying prime value*/ + IPP_BADARG_RET(cpCmp_BNU(pPrime, elemLen, GFP_MODULUS(pGFE), elemLen), ippStsBadArgErr); + + { + BNU_CHUNK_T* pbp_ec = ECP_G(pEC); + int cmpFlag; + BNU_CHUNK_T* pbp_tbl = cpEcGFpGetPool(1, pEC); + + selectAP select_affine_point = preComp->select_affine_point; + const BNU_CHUNK_T* pTbl = preComp->pTbl; + select_affine_point(pbp_tbl, pTbl, 1); + + /* check if EC's and G-table's Base Point is the same */ + cmpFlag = cpCmp_BNU(pbp_ec, elemLen*2, pbp_tbl, elemLen*2); + + cpEcGFpReleasePool(1, pEC); + + return cmpFlag? ippStsBadArgErr : ippStsNoErr; + } + } +} + +/*F* +// Name: ippsGFpECBindGxyTblStd384r1 +// +// Purpose: Enables the use of base point-based pre-computed tables of EC384r1 +// +// Returns: Reason: +// ippStsNullPtrErr NULL == pEC +// +// ippStsContextMatchErr invalid pEC->idCtx +// +// ippStsBadArgErr pEC is not EC384r1 +// +// ippStsNoErr no error +// +// Parameters: +// pEC Pointer to the context of the elliptic curve +// +*F*/ + +IPPFUN(IppStatus, ippsGFpECBindGxyTblStd384r1,(IppsGFpECState* pEC)) +{ + IppStatus sts = cpGFpECBindGxyTbl(secp384r1_p, gfpec_precom_nistP384r1_fun(), pEC); + + /* setup pre-computed g-table and point access function */ + if(ippStsNoErr==sts) + ECP_PREMULBP(pEC) = gfpec_precom_nistP384r1_fun(); + + return sts; +} |