1 /******************************************************************************* 2 * Copyright 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). 44 // 45 // Context: 46 // ippsGFpSetElementHash() 47 // 48 */ 49 #include "owndefs.h" 50 #include "owncp.h" 51 52 #include "pcpgfpstuff.h" 53 #include "pcpgfpxstuff.h" 54 #include "pcphash.h" 55 #include "pcptool.h" 56 57 58 /*F* 59 // Name: ippsGFpSetElementHash 60 // 61 // Purpose: Set GF Element Hash of the Message 62 // 63 // Returns: Reason: 64 // ippStsNullPtrErr NULL == pGFp 65 // NULL == pElm 66 // NULL == pMsg if msgLen>0 67 // 68 // ippStsNotSupportedModeErr hashID is not supported 69 // 70 // ippStsContextMatchErr invalid pGFp->idCtx 71 // invalid pElm->idCtx 72 // 73 // ippStsOutOfRangeErr GFPE_ROOM() != GFP_FELEN() 74 // 75 // ippStsBadArgErr !GFP_IS_BASIC(pGFE) 76 // 77 // ippStsLengthErr msgLen<0 78 // 79 // ippStsNoErr no error 80 // 81 // Parameters: 82 // pMsg pointer to the message is being hashed 83 // msgLen length of the message above 84 // pElm pointer to Finite Field Element context 85 // pGFp pointer to Finite Field context 86 // hashID applied hash algorithm ID 87 *F*/ 88 IPPFUN(IppStatus, ippsGFpSetElementHash,(const Ipp8u* pMsg, int msgLen, IppsGFpElement* pElm, IppsGFpState* pGFp, IppHashAlgId hashID)) 89 { 90 /* get algorithm id */ 91 hashID = cpValidHashAlg(hashID); 92 IPP_BADARG_RET(ippHashAlg_Unknown==hashID, ippStsNotSupportedModeErr); 93 94 /* test message length and pointer */ 95 IPP_BADARG_RET((msgLen<0), ippStsLengthErr); 96 IPP_BADARG_RET((msgLen && !pMsg), ippStsNullPtrErr); 97 98 IPP_BAD_PTR2_RET(pElm, pGFp); 99 pGFp = (IppsGFpState*)( IPP_ALIGNED_PTR(pGFp, GFP_ALIGNMENT) ); 100 IPP_BADARG_RET( !GFP_TEST_ID(pGFp), ippStsContextMatchErr); 101 IPP_BADARG_RET( !GFPE_TEST_ID(pElm), ippStsContextMatchErr); 102 { 103 gsModEngine* pGFE = GFP_PMA(pGFp); 104 IPP_BADARG_RET( !GFP_IS_BASIC(pGFE), ippStsBadArgErr); 105 IPP_BADARG_RET( GFPE_ROOM(pElm)!=GFP_FELEN(pGFE), ippStsOutOfRangeErr); 106 107 { 108 Ipp8u md[MAX_HASH_SIZE]; 109 BNU_CHUNK_T hashVal[(MAX_HASH_SIZE*8)/BITSIZE(BNU_CHUNK_T)+1]; /* +1 to meet cpMod_BNU() implementtaion specific */ 110 IppStatus sts = ippsHashMessage(pMsg, msgLen, md, hashID); 111 112 if(ippStsNoErr==sts) { 113 int elemLen = GFP_FELEN(pGFE); 114 int hashLen = cpHashAlgAttr[hashID].hashSize; 115 int hashValLen = cpFromOctStr_BNU(hashVal, md, hashLen); 116 hashValLen = cpMod_BNU(hashVal, hashValLen, GFP_MODULUS(pGFE), elemLen); 117 cpGFpSet(GFPE_DATA(pElm), hashVal, hashValLen, pGFE); 118 } 119 120 return sts; 121 } 122 } 123 } 124
