1 /******************************************************************************* 2 * Copyright 2017-2018 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 #if !defined(_GS_MOD_METHOD_H) 42 #define _GS_MOD_METHOD_H 43 44 //#include "owndefs.h" 45 #include "owncp.h" 46 47 #include "pcpbnuimpl.h" 48 //#include "gsmodstuff.h" 49 50 typedef struct _gsModEngine gsEngine; 51 52 /* modular arith methods */ 53 typedef BNU_CHUNK_T* (*mod_encode)(BNU_CHUNK_T* pR, const BNU_CHUNK_T* pA, gsEngine* pMA); 54 typedef BNU_CHUNK_T* (*mod_decode)(BNU_CHUNK_T* pR, const BNU_CHUNK_T* pA, gsEngine* pMA); 55 typedef BNU_CHUNK_T* (*mod_red) (BNU_CHUNK_T* pR, BNU_CHUNK_T* pA, gsEngine* pMA); 56 typedef BNU_CHUNK_T* (*mod_sqr) (BNU_CHUNK_T* pR, const BNU_CHUNK_T* pA, gsEngine* pMA); 57 typedef BNU_CHUNK_T* (*mod_mul) (BNU_CHUNK_T* pR, const BNU_CHUNK_T* pA, const BNU_CHUNK_T* pB, gsEngine* pMA); 58 typedef BNU_CHUNK_T* (*mod_add) (BNU_CHUNK_T* pR, const BNU_CHUNK_T* pA, const BNU_CHUNK_T* pB, gsEngine* pMA); 59 typedef BNU_CHUNK_T* (*mod_sub) (BNU_CHUNK_T* pR, const BNU_CHUNK_T* pA, const BNU_CHUNK_T* pB, gsEngine* pMA); 60 typedef BNU_CHUNK_T* (*mod_neg) (BNU_CHUNK_T* pR, const BNU_CHUNK_T* pA, gsEngine* pMA); 61 typedef BNU_CHUNK_T* (*mod_div2) (BNU_CHUNK_T* pR, const BNU_CHUNK_T* pA, gsEngine* pMA); 62 typedef BNU_CHUNK_T* (*mod_mul2) (BNU_CHUNK_T* pR, const BNU_CHUNK_T* pA, gsEngine* pMA); 63 typedef BNU_CHUNK_T* (*mod_mul3) (BNU_CHUNK_T* pR, const BNU_CHUNK_T* pA, gsEngine* pMA); 64 65 typedef struct _gsModMethod { 66 mod_encode encode; 67 mod_decode decode; 68 mod_mul mul; 69 mod_sqr sqr; 70 mod_red red; 71 mod_add add; 72 mod_sub sub; 73 mod_neg neg; 74 mod_div2 div2; 75 mod_mul2 mul2; 76 mod_mul3 mul3; 77 } gsModMethod; 78 79 __INLINE BNU_CHUNK_T cpIsZero(BNU_CHUNK_T x) 80 { return x==0; } 81 __INLINE BNU_CHUNK_T cpIsNonZero(BNU_CHUNK_T x) 82 { return x!=0; } 83 __INLINE BNU_CHUNK_T cpIsOdd(BNU_CHUNK_T x) 84 { return x&1; } 85 __INLINE BNU_CHUNK_T cpIsEven(BNU_CHUNK_T x) 86 { return 1-cpIsOdd(x); } 87 88 /* dst[] = (flag)? src[] : dst[] */ 89 __INLINE void cpMaskMove_gs(BNU_CHUNK_T* dst, const BNU_CHUNK_T* src, int len, BNU_CHUNK_T moveFlag) 90 { 91 BNU_CHUNK_T srcMask = 0-cpIsNonZero(moveFlag); 92 BNU_CHUNK_T dstMask = ~srcMask; 93 int n; 94 for(n=0; n<len; n++) 95 dst[n] = (src[n] & srcMask) ^ (dst[n] & dstMask); 96 } 97 98 /* common available pre-defined methos */ 99 #define gsModArith OWNAPI(gsModArith) 100 gsModMethod* gsModArith(void); 101 102 /* available pre-defined methos for RSA */ 103 #define gsModArithRSA OWNAPI(gsModArithRSA) 104 gsModMethod* gsModArithRSA(void); 105 106 /* available pre-defined methos for ippsMont* */ 107 #define gsModArithMont OWNAPI(gsModArithMont) 108 gsModMethod* gsModArithMont(void); 109 110 /* available pre-defined methos for DLP * */ 111 #define gsModArithDLP OWNAPI(gsModArithDLP) 112 gsModMethod* gsModArithDLP(void); 113 114 /* available pre-defined common methos for GF over prime * */ 115 #define gsArithGFp OWNAPI(gsArithGFp) 116 gsModMethod* gsArithGFp(void); 117 118 /* ... and etc ... */ 119 120 #endif /* _GS_MOD_METHOD_H */ 121 122
