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 41 /* 42 // Intel(R) Integrated Performance Primitives 43 // Cryptographic Primitives (ippcp) 44 // 45 // Contents: 46 // ippsSet_BN() 47 */ 48 49 #include "owndefs.h" 50 #include "owncp.h" 51 #include "pcpbn.h" 52 #include "pcptool.h" 53 54 55 /*F* 56 // Name: ippsSet_BN 57 // 58 // Purpose: Set BigNum. 59 // 60 // Returns: Reason: 61 // ippStsNullPtrErr pBN == NULL 62 // pData == NULL 63 // ippStsContextMatchErr !BN_VALID_ID(pBN) 64 // ippStsLengthErr length < 1 65 // ippStsOutOfRangeErr length > BN_ROOM(pBN) 66 // ippStsNoErr no errors 67 // 68 // Parameters: 69 // sgn sign 70 // length data size (in Ipp32u chunks) 71 // pData source data pointer 72 // pBN BigNum ctx 73 // 74 *F*/ 75 IPPFUN(IppStatus, ippsSet_BN, (IppsBigNumSGN sgn, int length, const Ipp32u* pData, 76 IppsBigNumState* pBN)) 77 { 78 IPP_BAD_PTR2_RET(pData, pBN); 79 80 pBN = (IppsBigNumState*)( IPP_ALIGNED_PTR(pBN, BN_ALIGNMENT) ); 81 IPP_BADARG_RET(!BN_VALID_ID(pBN), ippStsContextMatchErr); 82 83 IPP_BADARG_RET(length<1, ippStsLengthErr); 84 85 /* compute real size */ 86 FIX_BNU(pData, length); 87 88 { 89 cpSize len = INTERNAL_BNU_LENGTH(length); 90 IPP_BADARG_RET(len > BN_ROOM(pBN), ippStsOutOfRangeErr); 91 92 ZEXPAND_COPY_BNU((Ipp32u*)BN_NUMBER(pBN), BN_ROOM(pBN)*(int)(sizeof(BNU_CHUNK_T)/sizeof(Ipp32u)), pData, length); 93 94 BN_SIZE(pBN) = len; 95 96 if(length==1 && pData[0] == 0) 97 sgn = ippBigNumPOS; /* consider zero value as positive */ 98 BN_SIGN(pBN) = sgn; 99 100 return ippStsNoErr; 101 } 102 } 103
