1 /******************************************************************************* 2 * Copyright 2002-2018 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 /******* FILE MODIFIED FROM ORIGINAL 2019u1 RELEASE TO AVOID WARNINGS *********/ 41 /* 42 // 43 // Purpose: 44 // Cryptography Primitive. 45 // Digesting message according to SHA256 46 // 47 // Contents: 48 // cpSHA256MessageDigest() 49 // 50 */ 51 52 #include "owndefs.h" 53 #include "owncp.h" 54 #include "pcphash.h" 55 #include "pcphash_rmf.h" 56 #include "pcptool.h" 57 #include "pcpsha256stuff.h" 58 59 IppStatus cpSHA256MessageDigest(DigestSHA256 hash, const Ipp8u* pMsg, int msgLen, const DigestSHA256 IV) 60 { 61 /* test digest pointer */ 62 IPP_BAD_PTR1_RET(hash); 63 /* test message length */ 64 IPP_BADARG_RET((msgLen<0), ippStsLengthErr); 65 /* test message pointer */ 66 IPP_BADARG_RET((msgLen && !pMsg), ippStsNullPtrErr); 67 68 { 69 /* select processing function */ 70 #if (_SHA_NI_ENABLING_==_FEATURE_ON_) 71 cpHashProc updateFunc = UpdateSHA256ni; 72 #elif (_SHA_NI_ENABLING_==_FEATURE_TICKTOCK_) 73 cpHashProc updateFunc = IsFeatureEnabled(ippCPUID_SHA)? UpdateSHA256ni : UpdateSHA256; 74 #else 75 cpHashProc updateFunc = UpdateSHA256; 76 #endif 77 78 /* message length in the multiple MBS and the rest */ 79 int msgLenBlks = msgLen & (-MBS_SHA256); 80 int msgLenRest = msgLen % MBS_SHA256; 81 82 /* init hash */ 83 hash[0] = IV[0]; 84 hash[1] = IV[1]; 85 hash[2] = IV[2]; 86 hash[3] = IV[3]; 87 hash[4] = IV[4]; 88 hash[5] = IV[5]; 89 hash[6] = IV[6]; 90 hash[7] = IV[7]; 91 92 /* process main part of the message */ 93 if(msgLenBlks) { 94 updateFunc(hash, pMsg, msgLenBlks, sha256_cnt); 95 pMsg += msgLenBlks; 96 } 97 98 cpFinalizeSHA256(hash, pMsg, msgLenRest, msgLen); 99 hash[0] = ENDIANNESS32(hash[0]); 100 hash[1] = ENDIANNESS32(hash[1]); 101 hash[2] = ENDIANNESS32(hash[2]); 102 hash[3] = ENDIANNESS32(hash[3]); 103 hash[4] = ENDIANNESS32(hash[4]); 104 hash[5] = ENDIANNESS32(hash[5]); 105 hash[6] = ENDIANNESS32(hash[6]); 106 hash[7] = ENDIANNESS32(hash[7]); 107 108 return ippStsNoErr; 109 } 110 } 111
