1 /******************************************************************************* 2 * Copyright 2010-2018 Intel Corporation 3 * All Rights Reserved. 4 * 5 * If this software was obtained under the Intel Simplified Software License, 6 * the following terms apply: 7 * 8 * The source code, information and material ("Material") contained herein is 9 * owned by Intel Corporation or its suppliers or licensors, and title to such 10 * Material remains with Intel Corporation or its suppliers or licensors. The 11 * Material contains proprietary information of Intel or its suppliers and 12 * licensors. The Material is protected by worldwide copyright laws and treaty 13 * provisions. No part of the Material may be used, copied, reproduced, 14 * modified, published, uploaded, posted, transmitted, distributed or disclosed 15 * in any way without Intel's prior express written permission. No license under 16 * any patent, copyright or other intellectual property rights in the Material 17 * is granted to or conferred upon you, either expressly, by implication, 18 * inducement, estoppel or otherwise. Any license under such intellectual 19 * property rights must be express and approved by Intel in writing. 20 * 21 * Unless otherwise agreed by Intel in writing, you may not remove or alter this 22 * notice or any other notice embedded in Materials by Intel or Intel's 23 * suppliers or licensors in any way. 24 * 25 * 26 * If this software was obtained under the Apache License, Version 2.0 (the 27 * "License"), the following terms apply: 28 * 29 * You may not use this file except in compliance with the License. You may 30 * obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 31 * 32 * 33 * Unless required by applicable law or agreed to in writing, software 34 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 35 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 36 * 37 * See the License for the specific language governing permissions and 38 * limitations under the License. 39 *******************************************************************************/ 40 41 /* 42 // Intel(R) Integrated Performance Primitives. Cryptography Primitives. 43 // Operations over GF(p) ectension. 44 // 45 // Context: 46 // pcpgfpec_initgfpxctx.c() 47 // 48 */ 49 50 #include "owndefs.h" 51 #include "owncp.h" 52 #include "pcpgfpstuff.h" 53 #include "pcpgfpxstuff.h" 54 #include "pcptool.h" 55 56 57 /* the "static" specificator removed because of incorrect result under Linux-32, p8 58 what's wrong? not know maybe compiler (icl 2017) 59 need to check after switchng on icl 2018 60 */ 61 /*static*/ 62 void InitGFpxCtx(const IppsGFpState* pGroundGF, int extDeg, const IppsGFpMethod* method, IppsGFpState* pGFpx) 63 { 64 gsModEngine* pGFEp = GFP_PMA(pGroundGF); 65 int elemLen = extDeg * GFP_FELEN(pGFEp); 66 int elemLen32 = extDeg * GFP_FELEN32(pGFEp); 67 68 Ipp8u* ptr = (Ipp8u*)pGFpx + sizeof(IppsGFpState); 69 70 /* context identifier */ 71 GFP_ID(pGFpx) = idCtxGFP; 72 GFP_PMA(pGFpx) = (gsModEngine*)ptr; 73 { 74 gsModEngine* pGFEx = GFP_PMA(pGFpx); 75 76 /* clear whole context */ 77 PaddBlock(0, ptr, sizeof(gsModEngine)); 78 ptr += sizeof(gsModEngine); 79 80 GFP_PARENT(pGFEx) = pGFEp; 81 GFP_EXTDEGREE(pGFEx) = extDeg; 82 GFP_FEBITLEN(pGFEx) = 0;//elemBitLen; 83 GFP_FELEN(pGFEx) = elemLen; 84 GFP_FELEN32(pGFEx) = elemLen32; 85 GFP_PELEN(pGFEx) = elemLen; 86 GFP_METHOD(pGFEx) = method->arith; 87 GFP_MODULUS(pGFEx) = (BNU_CHUNK_T*)(ptr); ptr += elemLen * sizeof(BNU_CHUNK_T); /* field polynomial */ 88 GFP_POOL(pGFEx) = (BNU_CHUNK_T*)(ptr); /* pool */ 89 GFP_MAXPOOL(pGFEx) = GFPX_POOL_SIZE; 90 GFP_USEDPOOL(pGFEx) = 0; 91 92 cpGFpElementPadd(GFP_MODULUS(pGFEx), elemLen, 0); 93 } 94 } 95
