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 /* 42 // 43 // Purpose: 44 // Cryptography Primitive. 45 // Internal Definitions of AVX512 Montgomery Exp 46 // 47 */ 48 #include "owncp.h" 49 50 #if (_IPP32E>=_IPP32E_K0) 51 52 #include "pcpbnuimpl.h" 53 #include "pcpngmontexpstuff.h" 54 55 #define RSA_AVX512_MIN_BITSIZE (1024) 56 #define RSA_AVX512_MAX_BITSIZE (13*1024) 57 58 #define NORM_DIGSIZE_AVX512 (BITSIZE(Ipp64u)) 59 #define NORM_BASE_AVX512 ((Ipp64u)1<<NORM_DIGSIZE_AVX512) 60 #define NORM_MASK_AVX512 (NORM_BASE_AVX512-1) 61 62 #define EXP_DIGIT_SIZE_AVX512 (52) 63 #define EXP_DIGIT_BASE_AVX512 (1<<EXP_DIGIT_SIZE_AVX512) 64 #define EXP_DIGIT_MASK_AVX512 ((Ipp64u)0xFFFFFFFFFFFFF) 65 66 /* number of digits */ 67 __INLINE int cpDigitNum_avx512(int bitSize, int digSize) 68 { return (bitSize + digSize-1)/digSize; } 69 70 /* number of "EXP_DIGIT_SIZE_AVX512" chunks in "bitSize" bit string matched for AMM */ 71 __INLINE cpSize numofVariable_avx512(int modulusBits) 72 { 73 cpSize ammBitSize = 2 + cpDigitNum_avx512(modulusBits, BITSIZE(BNU_CHUNK_T)) * BITSIZE(BNU_CHUNK_T); 74 cpSize redNum = cpDigitNum_avx512(ammBitSize, EXP_DIGIT_SIZE_AVX512); 75 return redNum; 76 } 77 78 /* buffer corresponding to numofVariable_avx2() */ 79 /* cpMontExp_avx512_BufferSize() */ 80 __INLINE int numofVariableBuff_avx512(int len) 81 { 82 int tail = len%8; 83 if(0==tail) tail = 8; 84 return len + (8-tail); 85 } 86 87 /* exponentiation buffer size */ 88 #define gsMontExpBinBuffer_avx512 OWNAPI(gsMontExpBinBuffer_avx512) 89 #define gsMontExpWinBuffer_avx512 OWNAPI(gsMontExpWinBuffer_avx512) 90 cpSize gsMontExpBinBuffer_avx512(int modulusBits); 91 cpSize gsMontExpWinBuffer_avx512(int modulusBits); 92 93 /* exponentiations */ 94 #define gsMontExpBin_BNU_avx512 OWNAPI(gsMontExpBin_BNU_avx512) 95 cpSize gsMontExpBin_BNU_avx512(BNU_CHUNK_T* dataY, 96 const BNU_CHUNK_T* dataX, cpSize nsX, 97 const BNU_CHUNK_T* dataE, cpSize nsE, 98 gsModEngine* pMont, 99 BNU_CHUNK_T* pBuffer); 100 101 #define gsMontExpWin_BNU_avx512 OWNAPI(gsMontExpWin_BNU_avx512) 102 cpSize gsMontExpWin_BNU_avx512(BNU_CHUNK_T* dataY, 103 const BNU_CHUNK_T* dataX, cpSize nsX, 104 const BNU_CHUNK_T* dataE, cpSize nsE, 105 gsModEngine* pMont, 106 BNU_CHUNK_T* pBuffer); 107 108 #define gsMontExpBin_BNU_sscm_avx512 OWNAPI(gsMontExpBin_BNU_sscm_avx512) 109 cpSize gsMontExpBin_BNU_sscm_avx512(BNU_CHUNK_T* dataY, 110 const BNU_CHUNK_T* dataX, cpSize nsX, 111 const BNU_CHUNK_T* dataE, cpSize nsE, 112 gsModEngine* pMont, 113 BNU_CHUNK_T* pBuffer); 114 115 #define gsMontExpWin_BNU_sscm_avx512 OWNAPI(gsMontExpWin_BNU_sscm_avx512) 116 cpSize gsMontExpWin_BNU_sscm_avx512(BNU_CHUNK_T* dataY, 117 const BNU_CHUNK_T* dataX, cpSize nsX, 118 const BNU_CHUNK_T* dataE, cpSize nsE, 119 gsModEngine* pMont, 120 BNU_CHUNK_T* pBuffer); 121 122 #endif /* _IPP32E_K0 */ 123
