[337] | 1 | /* sha.c
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| 2 | *
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| 3 | * Copyright (C) 2006-2017 wolfSSL Inc.
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| 4 | *
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| 5 | * This file is part of wolfSSL.
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| 6 | *
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| 7 | * wolfSSL is free software; you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation; either version 2 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * wolfSSL is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with this program; if not, write to the Free Software
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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| 20 | */
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| 21 |
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| 22 |
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| 23 | #ifdef HAVE_CONFIG_H
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| 24 | #include <config.h>
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| 25 | #endif
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| 26 |
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| 27 | #include <wolfssl/wolfcrypt/settings.h>
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| 28 |
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| 29 | #if !defined(NO_SHA)
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| 30 |
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[372] | 31 | #if defined(HAVE_FIPS) && \
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| 32 | defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2)
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| 33 |
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| 34 | /* set NO_WRAPPERS before headers, use direct internal f()s not wrappers */
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| 35 | #define FIPS_NO_WRAPPERS
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| 36 |
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| 37 | #ifdef USE_WINDOWS_API
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| 38 | #pragma code_seg(".fipsA$j")
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| 39 | #pragma const_seg(".fipsB$j")
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| 40 | #endif
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| 41 | #endif
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| 42 |
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[337] | 43 | #include <wolfssl/wolfcrypt/sha.h>
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| 44 | #include <wolfssl/wolfcrypt/error-crypt.h>
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| 45 |
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| 46 | /* fips wrapper calls, user can call direct */
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[372] | 47 | #if defined(HAVE_FIPS) && \
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| 48 | (!defined(HAVE_FIPS_VERSION) || (HAVE_FIPS_VERSION < 2))
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| 49 |
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[337] | 50 | int wc_InitSha(wc_Sha* sha)
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| 51 | {
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| 52 | if (sha == NULL) {
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| 53 | return BAD_FUNC_ARG;
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| 54 | }
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| 55 | return InitSha_fips(sha);
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| 56 | }
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| 57 | int wc_InitSha_ex(wc_Sha* sha, void* heap, int devId)
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| 58 | {
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| 59 | (void)heap;
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| 60 | (void)devId;
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| 61 | if (sha == NULL) {
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| 62 | return BAD_FUNC_ARG;
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| 63 | }
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| 64 | return InitSha_fips(sha);
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| 65 | }
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| 66 |
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| 67 | int wc_ShaUpdate(wc_Sha* sha, const byte* data, word32 len)
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| 68 | {
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| 69 | if (sha == NULL || (data == NULL && len > 0)) {
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| 70 | return BAD_FUNC_ARG;
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| 71 | }
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| 72 | return ShaUpdate_fips(sha, data, len);
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| 73 | }
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| 74 |
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| 75 | int wc_ShaFinal(wc_Sha* sha, byte* out)
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| 76 | {
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| 77 | if (sha == NULL || out == NULL) {
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| 78 | return BAD_FUNC_ARG;
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| 79 | }
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| 80 | return ShaFinal_fips(sha,out);
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| 81 | }
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| 82 | void wc_ShaFree(wc_Sha* sha)
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| 83 | {
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| 84 | (void)sha;
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| 85 | /* Not supported in FIPS */
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| 86 | }
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| 87 |
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[372] | 88 | #else /* else build without fips, or for FIPS v2 */
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[337] | 89 |
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| 90 |
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| 91 | #if defined(WOLFSSL_TI_HASH)
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| 92 | /* #include <wolfcrypt/src/port/ti/ti-hash.c> included by wc_port.c */
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| 93 |
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| 94 | #else
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| 95 |
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| 96 | #include <wolfssl/wolfcrypt/logging.h>
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| 97 | #ifdef NO_INLINE
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| 98 | #include <wolfssl/wolfcrypt/misc.h>
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| 99 | #else
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| 100 | #define WOLFSSL_MISC_INCLUDED
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| 101 | #include <wolfcrypt/src/misc.c>
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| 102 | #endif
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| 103 |
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| 104 |
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| 105 | /* Hardware Acceleration */
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| 106 | #if defined(WOLFSSL_PIC32MZ_HASH)
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| 107 | #include <wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h>
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| 108 |
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| 109 | #elif defined(STM32_HASH)
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| 110 |
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[372] | 111 | /* Supports CubeMX HAL or Standard Peripheral Library */
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[337] | 112 | int wc_InitSha_ex(wc_Sha* sha, void* heap, int devId)
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| 113 | {
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[372] | 114 | if (sha == NULL) {
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[337] | 115 | return BAD_FUNC_ARG;
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| 116 | }
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| 117 |
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[372] | 118 | (void)devId;
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| 119 | (void)heap;
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[337] | 120 |
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[372] | 121 | wc_Stm32_Hash_Init(&sha->stmCtx);
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[337] | 122 |
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| 123 | return 0;
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| 124 | }
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| 125 |
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| 126 | int wc_ShaUpdate(wc_Sha* sha, const byte* data, word32 len)
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| 127 | {
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[372] | 128 | int ret;
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[337] | 129 |
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| 130 | if (sha == NULL || (data == NULL && len > 0)) {
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| 131 | return BAD_FUNC_ARG;
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| 132 | }
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| 133 |
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[372] | 134 | ret = wolfSSL_CryptHwMutexLock();
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| 135 | if (ret == 0) {
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| 136 | ret = wc_Stm32_Hash_Update(&sha->stmCtx, HASH_AlgoSelection_SHA1,
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| 137 | data, len);
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| 138 | wolfSSL_CryptHwMutexUnLock();
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[337] | 139 | }
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| 140 | return ret;
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| 141 | }
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| 142 |
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| 143 | int wc_ShaFinal(wc_Sha* sha, byte* hash)
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| 144 | {
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[372] | 145 | int ret;
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[337] | 146 |
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[372] | 147 | if (sha == NULL || hash == NULL) {
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[337] | 148 | return BAD_FUNC_ARG;
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| 149 | }
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| 150 |
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[372] | 151 | ret = wolfSSL_CryptHwMutexLock();
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| 152 | if (ret == 0) {
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| 153 | ret = wc_Stm32_Hash_Final(&sha->stmCtx, HASH_AlgoSelection_SHA1,
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| 154 | hash, WC_SHA_DIGEST_SIZE);
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| 155 | wolfSSL_CryptHwMutexUnLock();
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[337] | 156 | }
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| 157 |
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[372] | 158 | (void)wc_InitSha(sha); /* reset state */
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[337] | 159 |
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| 160 | return ret;
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| 161 | }
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| 162 |
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| 163 |
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| 164 | #elif defined(FREESCALE_LTC_SHA)
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| 165 |
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| 166 | #include "fsl_ltc.h"
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[372] | 167 | int wc_InitSha_ex(wc_Sha* sha, void* heap, int devId)
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[337] | 168 | {
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[372] | 169 | if (sha == NULL) {
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| 170 | return BAD_FUNC_ARG;
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| 171 | }
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| 172 |
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| 173 | (void)devId;
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| 174 | (void)heap;
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| 175 |
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[337] | 176 | LTC_HASH_Init(LTC_BASE, &sha->ctx, kLTC_Sha1, NULL, 0);
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| 177 | return 0;
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| 178 | }
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| 179 |
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| 180 | int wc_ShaUpdate(wc_Sha* sha, const byte* data, word32 len)
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| 181 | {
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| 182 | LTC_HASH_Update(&sha->ctx, data, len);
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| 183 | return 0;
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| 184 | }
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| 185 |
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| 186 | int wc_ShaFinal(wc_Sha* sha, byte* hash)
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| 187 | {
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| 188 | uint32_t hashlen = WC_SHA_DIGEST_SIZE;
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| 189 | LTC_HASH_Finish(&sha->ctx, hash, &hashlen);
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| 190 | return wc_InitSha(sha); /* reset state */
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| 191 | }
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| 192 |
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| 193 |
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| 194 | #elif defined(FREESCALE_MMCAU_SHA)
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| 195 |
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| 196 | #ifdef FREESCALE_MMCAU_CLASSIC_SHA
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| 197 | #include "cau_api.h"
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| 198 | #else
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| 199 | #include "fsl_mmcau.h"
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| 200 | #endif
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| 201 |
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| 202 | #define USE_SHA_SOFTWARE_IMPL /* Only for API's, actual transform is here */
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| 203 | #define XTRANSFORM(S,B) Transform((S),(B))
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| 204 |
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| 205 | static int InitSha(wc_Sha* sha)
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| 206 | {
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| 207 | int ret = 0;
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| 208 | ret = wolfSSL_CryptHwMutexLock();
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| 209 | if (ret != 0) {
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| 210 | return ret;
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| 211 | }
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| 212 | #ifdef FREESCALE_MMCAU_CLASSIC_SHA
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| 213 | cau_sha1_initialize_output(sha->digest);
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| 214 | #else
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| 215 | MMCAU_SHA1_InitializeOutput((uint32_t*)sha->digest);
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| 216 | #endif
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| 217 | wolfSSL_CryptHwMutexUnLock();
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| 218 |
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| 219 | sha->buffLen = 0;
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| 220 | sha->loLen = 0;
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| 221 | sha->hiLen = 0;
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| 222 |
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| 223 | return ret;
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| 224 | }
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| 225 |
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| 226 | static int Transform(wc_Sha* sha, byte* data)
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| 227 | {
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| 228 | int ret = wolfSSL_CryptHwMutexLock();
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| 229 | if(ret == 0) {
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| 230 | #ifdef FREESCALE_MMCAU_CLASSIC_SHA
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| 231 | cau_sha1_hash_n(data, 1, sha->digest);
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| 232 | #else
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| 233 | MMCAU_SHA1_HashN(data, 1, (uint32_t*)sha->digest);
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| 234 | #endif
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| 235 | wolfSSL_CryptHwMutexUnLock();
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| 236 | }
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| 237 | return ret;
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| 238 | }
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| 239 |
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[372] | 240 | #elif defined(WOLFSSL_IMX6_CAAM) && !defined(NO_IMX6_CAAM_HASH)
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| 241 | /* wolfcrypt/src/port/caam/caam_sha.c */
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[337] | 242 | #else
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| 243 |
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| 244 | /* Software implementation */
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| 245 | #define USE_SHA_SOFTWARE_IMPL
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| 246 |
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| 247 | static int InitSha(wc_Sha* sha)
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| 248 | {
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| 249 | int ret = 0;
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| 250 |
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| 251 | sha->digest[0] = 0x67452301L;
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| 252 | sha->digest[1] = 0xEFCDAB89L;
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| 253 | sha->digest[2] = 0x98BADCFEL;
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| 254 | sha->digest[3] = 0x10325476L;
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| 255 | sha->digest[4] = 0xC3D2E1F0L;
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| 256 |
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| 257 | sha->buffLen = 0;
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| 258 | sha->loLen = 0;
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| 259 | sha->hiLen = 0;
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| 260 |
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| 261 | return ret;
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| 262 | }
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| 263 |
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| 264 | #endif /* End Hardware Acceleration */
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| 265 |
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| 266 |
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[372] | 267 | /* Software implementation */
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| 268 | #ifdef USE_SHA_SOFTWARE_IMPL
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| 269 |
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| 270 | static WC_INLINE void AddLength(wc_Sha* sha, word32 len)
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[337] | 271 | {
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| 272 | word32 tmp = sha->loLen;
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| 273 | if ((sha->loLen += len) < tmp)
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| 274 | sha->hiLen++; /* carry low to high */
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| 275 | }
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| 276 |
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| 277 | /* Check if custom wc_Sha transform is used */
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| 278 | #ifndef XTRANSFORM
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| 279 | #define XTRANSFORM(S,B) Transform((S),(B))
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| 280 |
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| 281 | #define blk0(i) (W[i] = sha->buffer[i])
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| 282 | #define blk1(i) (W[(i)&15] = \
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| 283 | rotlFixed(W[((i)+13)&15]^W[((i)+8)&15]^W[((i)+2)&15]^W[(i)&15],1))
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| 284 |
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| 285 | #define f1(x,y,z) ((z)^((x) &((y)^(z))))
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| 286 | #define f2(x,y,z) ((x)^(y)^(z))
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| 287 | #define f3(x,y,z) (((x)&(y))|((z)&((x)|(y))))
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| 288 | #define f4(x,y,z) ((x)^(y)^(z))
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| 289 |
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[372] | 290 | #ifdef WOLFSSL_NUCLEUS_1_2
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| 291 | /* nucleus.h also defines R1-R4 */
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| 292 | #undef R1
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| 293 | #undef R2
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| 294 | #undef R3
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| 295 | #undef R4
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| 296 | #endif
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| 297 |
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[337] | 298 | /* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
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| 299 | #define R0(v,w,x,y,z,i) (z)+= f1((w),(x),(y)) + blk0((i)) + 0x5A827999+ \
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| 300 | rotlFixed((v),5); (w) = rotlFixed((w),30);
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| 301 | #define R1(v,w,x,y,z,i) (z)+= f1((w),(x),(y)) + blk1((i)) + 0x5A827999+ \
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| 302 | rotlFixed((v),5); (w) = rotlFixed((w),30);
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| 303 | #define R2(v,w,x,y,z,i) (z)+= f2((w),(x),(y)) + blk1((i)) + 0x6ED9EBA1+ \
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| 304 | rotlFixed((v),5); (w) = rotlFixed((w),30);
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| 305 | #define R3(v,w,x,y,z,i) (z)+= f3((w),(x),(y)) + blk1((i)) + 0x8F1BBCDC+ \
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| 306 | rotlFixed((v),5); (w) = rotlFixed((w),30);
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| 307 | #define R4(v,w,x,y,z,i) (z)+= f4((w),(x),(y)) + blk1((i)) + 0xCA62C1D6+ \
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| 308 | rotlFixed((v),5); (w) = rotlFixed((w),30);
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| 309 |
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| 310 | static void Transform(wc_Sha* sha, byte* data)
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| 311 | {
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| 312 | word32 W[WC_SHA_BLOCK_SIZE / sizeof(word32)];
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| 313 |
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| 314 | /* Copy context->state[] to working vars */
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| 315 | word32 a = sha->digest[0];
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| 316 | word32 b = sha->digest[1];
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| 317 | word32 c = sha->digest[2];
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| 318 | word32 d = sha->digest[3];
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| 319 | word32 e = sha->digest[4];
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| 320 |
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| 321 | #ifdef USE_SLOW_SHA
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| 322 | word32 t, i;
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| 323 |
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| 324 | for (i = 0; i < 16; i++) {
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| 325 | R0(a, b, c, d, e, i);
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| 326 | t = e; e = d; d = c; c = b; b = a; a = t;
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| 327 | }
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| 328 |
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| 329 | for (; i < 20; i++) {
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| 330 | R1(a, b, c, d, e, i);
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| 331 | t = e; e = d; d = c; c = b; b = a; a = t;
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| 332 | }
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| 333 |
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| 334 | for (; i < 40; i++) {
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| 335 | R2(a, b, c, d, e, i);
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| 336 | t = e; e = d; d = c; c = b; b = a; a = t;
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| 337 | }
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| 338 |
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| 339 | for (; i < 60; i++) {
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| 340 | R3(a, b, c, d, e, i);
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| 341 | t = e; e = d; d = c; c = b; b = a; a = t;
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| 342 | }
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| 343 |
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| 344 | for (; i < 80; i++) {
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| 345 | R4(a, b, c, d, e, i);
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| 346 | t = e; e = d; d = c; c = b; b = a; a = t;
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| 347 | }
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| 348 | #else
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| 349 | /* nearly 1 K bigger in code size but 25% faster */
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| 350 | /* 4 rounds of 20 operations each. Loop unrolled. */
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| 351 | R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
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| 352 | R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
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| 353 | R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11);
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| 354 | R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15);
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| 355 |
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| 356 | R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
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| 357 |
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| 358 | R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
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| 359 | R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
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| 360 | R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
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| 361 | R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
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| 362 | R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
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| 363 |
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| 364 | R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
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| 365 | R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
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| 366 | R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
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| 367 | R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
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| 368 | R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
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| 369 |
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| 370 | R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
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| 371 | R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
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| 372 | R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
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| 373 | R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
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| 374 | R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
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| 375 | #endif
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| 376 |
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| 377 | /* Add the working vars back into digest state[] */
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| 378 | sha->digest[0] += a;
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| 379 | sha->digest[1] += b;
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| 380 | sha->digest[2] += c;
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| 381 | sha->digest[3] += d;
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| 382 | sha->digest[4] += e;
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| 383 |
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| 384 | (void)data; /* Not used */
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| 385 | }
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| 386 | #endif /* !USE_CUSTOM_SHA_TRANSFORM */
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| 387 |
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| 388 |
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| 389 | int wc_InitSha_ex(wc_Sha* sha, void* heap, int devId)
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| 390 | {
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| 391 | int ret = 0;
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| 392 |
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| 393 | if (sha == NULL)
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| 394 | return BAD_FUNC_ARG;
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| 395 |
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| 396 | sha->heap = heap;
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| 397 |
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| 398 | ret = InitSha(sha);
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| 399 | if (ret != 0)
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| 400 | return ret;
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| 401 |
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| 402 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA)
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| 403 | ret = wolfAsync_DevCtxInit(&sha->asyncDev, WOLFSSL_ASYNC_MARKER_SHA,
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| 404 | sha->heap, devId);
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| 405 | #else
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| 406 | (void)devId;
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| 407 | #endif /* WOLFSSL_ASYNC_CRYPT */
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| 408 |
|
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| 409 | return ret;
|
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| 410 | }
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| 411 |
|
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| 412 | int wc_ShaUpdate(wc_Sha* sha, const byte* data, word32 len)
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| 413 | {
|
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| 414 | byte* local;
|
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| 415 |
|
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| 416 | if (sha == NULL ||(data == NULL && len > 0)) {
|
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| 417 | return BAD_FUNC_ARG;
|
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| 418 | }
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| 419 |
|
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| 420 | /* do block size increments */
|
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| 421 | local = (byte*)sha->buffer;
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| 422 |
|
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| 423 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA)
|
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| 424 | if (sha->asyncDev.marker == WOLFSSL_ASYNC_MARKER_SHA) {
|
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| 425 | #if defined(HAVE_INTEL_QA)
|
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| 426 | return IntelQaSymSha(&sha->asyncDev, NULL, data, len);
|
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| 427 | #endif
|
---|
| 428 | }
|
---|
| 429 | #endif /* WOLFSSL_ASYNC_CRYPT */
|
---|
| 430 |
|
---|
| 431 | /* check that internal buffLen is valid */
|
---|
| 432 | if (sha->buffLen >= WC_SHA_BLOCK_SIZE)
|
---|
| 433 | return BUFFER_E;
|
---|
| 434 |
|
---|
| 435 | while (len) {
|
---|
| 436 | word32 add = min(len, WC_SHA_BLOCK_SIZE - sha->buffLen);
|
---|
| 437 | XMEMCPY(&local[sha->buffLen], data, add);
|
---|
| 438 |
|
---|
| 439 | sha->buffLen += add;
|
---|
| 440 | data += add;
|
---|
| 441 | len -= add;
|
---|
| 442 |
|
---|
| 443 | if (sha->buffLen == WC_SHA_BLOCK_SIZE) {
|
---|
| 444 | #if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
|
---|
| 445 | ByteReverseWords(sha->buffer, sha->buffer, WC_SHA_BLOCK_SIZE);
|
---|
| 446 | #endif
|
---|
| 447 | XTRANSFORM(sha, local);
|
---|
| 448 | AddLength(sha, WC_SHA_BLOCK_SIZE);
|
---|
| 449 | sha->buffLen = 0;
|
---|
| 450 | }
|
---|
| 451 | }
|
---|
| 452 |
|
---|
| 453 | return 0;
|
---|
| 454 | }
|
---|
| 455 |
|
---|
[372] | 456 | int wc_ShaFinalRaw(wc_Sha* sha, byte* hash)
|
---|
| 457 | {
|
---|
| 458 | #ifdef LITTLE_ENDIAN_ORDER
|
---|
| 459 | word32 digest[WC_SHA_DIGEST_SIZE / sizeof(word32)];
|
---|
| 460 | #endif
|
---|
| 461 |
|
---|
| 462 | if (sha == NULL || hash == NULL) {
|
---|
| 463 | return BAD_FUNC_ARG;
|
---|
| 464 | }
|
---|
| 465 |
|
---|
| 466 | #ifdef LITTLE_ENDIAN_ORDER
|
---|
| 467 | ByteReverseWords((word32*)digest, (word32*)sha->digest, WC_SHA_DIGEST_SIZE);
|
---|
| 468 | XMEMCPY(hash, digest, WC_SHA_DIGEST_SIZE);
|
---|
| 469 | #else
|
---|
| 470 | XMEMCPY(hash, sha->digest, WC_SHA_DIGEST_SIZE);
|
---|
| 471 | #endif
|
---|
| 472 |
|
---|
| 473 | return 0;
|
---|
| 474 | }
|
---|
| 475 |
|
---|
[337] | 476 | int wc_ShaFinal(wc_Sha* sha, byte* hash)
|
---|
| 477 | {
|
---|
| 478 | byte* local;
|
---|
| 479 |
|
---|
| 480 | if (sha == NULL || hash == NULL) {
|
---|
| 481 | return BAD_FUNC_ARG;
|
---|
| 482 | }
|
---|
| 483 |
|
---|
| 484 | local = (byte*)sha->buffer;
|
---|
| 485 |
|
---|
| 486 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA)
|
---|
| 487 | if (sha->asyncDev.marker == WOLFSSL_ASYNC_MARKER_SHA) {
|
---|
| 488 | #if defined(HAVE_INTEL_QA)
|
---|
| 489 | return IntelQaSymSha(&sha->asyncDev, hash, NULL, WC_SHA_DIGEST_SIZE);
|
---|
| 490 | #endif
|
---|
| 491 | }
|
---|
| 492 | #endif /* WOLFSSL_ASYNC_CRYPT */
|
---|
| 493 |
|
---|
| 494 | AddLength(sha, sha->buffLen); /* before adding pads */
|
---|
| 495 |
|
---|
| 496 | local[sha->buffLen++] = 0x80; /* add 1 */
|
---|
| 497 |
|
---|
| 498 | /* pad with zeros */
|
---|
| 499 | if (sha->buffLen > WC_SHA_PAD_SIZE) {
|
---|
| 500 | XMEMSET(&local[sha->buffLen], 0, WC_SHA_BLOCK_SIZE - sha->buffLen);
|
---|
| 501 | sha->buffLen += WC_SHA_BLOCK_SIZE - sha->buffLen;
|
---|
| 502 |
|
---|
| 503 | #if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
|
---|
| 504 | ByteReverseWords(sha->buffer, sha->buffer, WC_SHA_BLOCK_SIZE);
|
---|
| 505 | #endif
|
---|
| 506 | XTRANSFORM(sha, local);
|
---|
| 507 | sha->buffLen = 0;
|
---|
| 508 | }
|
---|
| 509 | XMEMSET(&local[sha->buffLen], 0, WC_SHA_PAD_SIZE - sha->buffLen);
|
---|
| 510 |
|
---|
| 511 | #if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
|
---|
| 512 | ByteReverseWords(sha->buffer, sha->buffer, WC_SHA_BLOCK_SIZE);
|
---|
| 513 | #endif
|
---|
| 514 |
|
---|
| 515 | /* store lengths */
|
---|
| 516 | /* put lengths in bits */
|
---|
| 517 | sha->hiLen = (sha->loLen >> (8*sizeof(sha->loLen) - 3)) + (sha->hiLen << 3);
|
---|
| 518 | sha->loLen = sha->loLen << 3;
|
---|
| 519 |
|
---|
| 520 | /* ! length ordering dependent on digest endian type ! */
|
---|
| 521 | XMEMCPY(&local[WC_SHA_PAD_SIZE], &sha->hiLen, sizeof(word32));
|
---|
| 522 | XMEMCPY(&local[WC_SHA_PAD_SIZE + sizeof(word32)], &sha->loLen, sizeof(word32));
|
---|
| 523 |
|
---|
| 524 | #if defined(FREESCALE_MMCAU_SHA)
|
---|
| 525 | /* Kinetis requires only these bytes reversed */
|
---|
| 526 | ByteReverseWords(&sha->buffer[WC_SHA_PAD_SIZE/sizeof(word32)],
|
---|
| 527 | &sha->buffer[WC_SHA_PAD_SIZE/sizeof(word32)],
|
---|
| 528 | 2 * sizeof(word32));
|
---|
| 529 | #endif
|
---|
| 530 |
|
---|
| 531 | XTRANSFORM(sha, local);
|
---|
| 532 | #ifdef LITTLE_ENDIAN_ORDER
|
---|
| 533 | ByteReverseWords(sha->digest, sha->digest, WC_SHA_DIGEST_SIZE);
|
---|
| 534 | #endif
|
---|
| 535 | XMEMCPY(hash, sha->digest, WC_SHA_DIGEST_SIZE);
|
---|
| 536 |
|
---|
| 537 | return InitSha(sha); /* reset state */
|
---|
| 538 | }
|
---|
| 539 |
|
---|
| 540 | #endif /* USE_SHA_SOFTWARE_IMPL */
|
---|
| 541 |
|
---|
| 542 |
|
---|
| 543 | int wc_InitSha(wc_Sha* sha)
|
---|
| 544 | {
|
---|
| 545 | return wc_InitSha_ex(sha, NULL, INVALID_DEVID);
|
---|
| 546 | }
|
---|
| 547 |
|
---|
| 548 | void wc_ShaFree(wc_Sha* sha)
|
---|
| 549 | {
|
---|
| 550 | if (sha == NULL)
|
---|
| 551 | return;
|
---|
| 552 |
|
---|
| 553 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA)
|
---|
| 554 | wolfAsync_DevCtxFree(&sha->asyncDev, WOLFSSL_ASYNC_MARKER_SHA);
|
---|
| 555 | #endif /* WOLFSSL_ASYNC_CRYPT */
|
---|
[372] | 556 |
|
---|
| 557 | #ifdef WOLFSSL_PIC32MZ_HASH
|
---|
| 558 | wc_ShaPic32Free(sha);
|
---|
| 559 | #endif
|
---|
[337] | 560 | }
|
---|
| 561 |
|
---|
| 562 | #endif /* !WOLFSSL_TI_HASH */
|
---|
| 563 | #endif /* HAVE_FIPS */
|
---|
| 564 |
|
---|
| 565 | #ifndef WOLFSSL_TI_HASH
|
---|
| 566 | int wc_ShaGetHash(wc_Sha* sha, byte* hash)
|
---|
| 567 | {
|
---|
| 568 | int ret;
|
---|
| 569 | wc_Sha tmpSha;
|
---|
| 570 |
|
---|
| 571 | if (sha == NULL || hash == NULL)
|
---|
| 572 | return BAD_FUNC_ARG;
|
---|
| 573 |
|
---|
| 574 | ret = wc_ShaCopy(sha, &tmpSha);
|
---|
| 575 | if (ret == 0) {
|
---|
| 576 | ret = wc_ShaFinal(&tmpSha, hash);
|
---|
| 577 | }
|
---|
| 578 | return ret;
|
---|
| 579 | }
|
---|
| 580 |
|
---|
| 581 | int wc_ShaCopy(wc_Sha* src, wc_Sha* dst)
|
---|
| 582 | {
|
---|
| 583 | int ret = 0;
|
---|
| 584 |
|
---|
| 585 | if (src == NULL || dst == NULL)
|
---|
| 586 | return BAD_FUNC_ARG;
|
---|
| 587 |
|
---|
| 588 | XMEMCPY(dst, src, sizeof(wc_Sha));
|
---|
| 589 |
|
---|
| 590 | #ifdef WOLFSSL_ASYNC_CRYPT
|
---|
| 591 | ret = wolfAsync_DevCopy(&src->asyncDev, &dst->asyncDev);
|
---|
| 592 | #endif
|
---|
| 593 | #ifdef WOLFSSL_PIC32MZ_HASH
|
---|
| 594 | ret = wc_Pic32HashCopy(&src->cache, &dst->cache);
|
---|
| 595 | #endif
|
---|
| 596 |
|
---|
| 597 | return ret;
|
---|
| 598 | }
|
---|
| 599 | #endif /* !WOLFSSL_TI_HASH */
|
---|
| 600 |
|
---|
| 601 | #endif /* !NO_SHA */
|
---|