[352] | 1 | /* md5.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 |
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| 24 | #ifdef HAVE_CONFIG_H
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| 25 | #include <config.h>
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| 26 | #endif
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| 27 |
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| 28 | #include <wolfssl/wolfcrypt/settings.h>
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| 29 |
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| 30 | #if !defined(NO_MD5)
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| 31 |
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| 32 | #if defined(WOLFSSL_TI_HASH)
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| 33 | /* #include <wolfcrypt/src/port/ti/ti-hash.c> included by wc_port.c */
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| 34 |
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| 35 | #else
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| 36 |
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| 37 | #include <wolfssl/wolfcrypt/md5.h>
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| 38 | #include <wolfssl/wolfcrypt/error-crypt.h>
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| 39 | #include <wolfssl/wolfcrypt/logging.h>
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| 40 |
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| 41 | #ifdef NO_INLINE
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| 42 | #include <wolfssl/wolfcrypt/misc.h>
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| 43 | #else
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| 44 | #define WOLFSSL_MISC_INCLUDED
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| 45 | #include <wolfcrypt/src/misc.c>
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| 46 | #endif
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| 47 |
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| 48 |
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| 49 | static INLINE void AddLength(wc_Md5* md5, word32 len);
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| 50 |
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| 51 | /* Hardware Acceleration */
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| 52 | #if defined(STM32_HASH)
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| 53 |
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| 54 | /*
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| 55 | * STM32F2/F4/F7 hardware MD5 support through the HASH_* API's from the
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| 56 | * Standard Peripheral Library or CubeMX (See note in README).
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| 57 | */
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| 58 |
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| 59 | #define HAVE_MD5_CUST_API
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| 60 |
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| 61 | /* STM32 register size, bytes */
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| 62 | #ifdef WOLFSSL_STM32_CUBEMX
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| 63 | #define MD5_REG_SIZE WC_MD5_BLOCK_SIZE
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| 64 | #else
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| 65 | #define MD5_REG_SIZE 4
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| 66 | /* STM32 struct notes:
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| 67 | * md5->buffer = first 4 bytes used to hold partial block if needed
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| 68 | * md5->buffLen = num bytes currently stored in md5->buffer
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| 69 | * md5->loLen = num bytes that have been written to STM32 FIFO
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| 70 | */
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| 71 | #endif
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| 72 | #define MD5_HW_TIMEOUT 0xFF
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| 73 |
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| 74 | int wc_InitMd5_ex(wc_Md5* md5, void* heap, int devId)
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| 75 | {
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| 76 | if (md5 == NULL)
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| 77 | return BAD_FUNC_ARG;
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| 78 |
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| 79 | (void)heap;
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| 80 | (void)devId;
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| 81 |
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| 82 | md5->heap = heap;
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| 83 | XMEMSET(md5->buffer, 0, sizeof(md5->buffer));
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| 84 | md5->buffLen = 0;
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| 85 | md5->loLen = 0;
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| 86 | md5->hiLen = 0;
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| 87 |
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| 88 | /* initialize HASH peripheral */
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| 89 | #ifdef WOLFSSL_STM32_CUBEMX
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| 90 | HAL_HASH_DeInit(&md5->hashHandle);
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| 91 | md5->hashHandle.Init.DataType = HASH_DATATYPE_8B;
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| 92 | if (HAL_HASH_Init(&md5->hashHandle) != HAL_OK) {
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| 93 | return ASYNC_INIT_E;
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| 94 | }
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| 95 | /* reset the hash control register */
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| 96 | /* required because Cube MX is not clearing algo bits */
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| 97 | HASH->CR &= ~HASH_CR_ALGO;
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| 98 | #else
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| 99 | HASH_DeInit();
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| 100 |
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| 101 | /* reset the control register */
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| 102 | HASH->CR &= ~ (HASH_CR_ALGO | HASH_CR_DATATYPE | HASH_CR_MODE);
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| 103 |
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| 104 | /* configure algo used, algo mode, datatype */
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| 105 | HASH->CR |= (HASH_AlgoSelection_MD5 | HASH_AlgoMode_HASH
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| 106 | | HASH_DataType_8b);
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| 107 |
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| 108 | /* reset HASH processor */
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| 109 | HASH->CR |= HASH_CR_INIT;
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| 110 | #endif
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| 111 |
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| 112 | return 0;
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| 113 | }
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| 114 |
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| 115 | int wc_Md5Update(wc_Md5* md5, const byte* data, word32 len)
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| 116 | {
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| 117 | int ret = 0;
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| 118 | byte* local;
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| 119 |
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| 120 | if (md5 == NULL || (data == NULL && len > 0)) {
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| 121 | return BAD_FUNC_ARG;
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| 122 | }
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| 123 |
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| 124 | /* do block size increments */
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| 125 | local = (byte*)md5->buffer;
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| 126 |
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| 127 | /* check that internal buffLen is valid */
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| 128 | if (md5->buffLen >= MD5_REG_SIZE)
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| 129 | return BUFFER_E;
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| 130 |
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| 131 | while (len) {
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| 132 | word32 add = min(len, MD5_REG_SIZE - md5->buffLen);
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| 133 | XMEMCPY(&local[md5->buffLen], data, add);
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| 134 |
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| 135 | md5->buffLen += add;
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| 136 | data += add;
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| 137 | len -= add;
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| 138 |
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| 139 | if (md5->buffLen == MD5_REG_SIZE) {
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| 140 | #ifdef WOLFSSL_STM32_CUBEMX
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| 141 | if (HAL_HASH_MD5_Accumulate(
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| 142 | &md5->hashHandle, local, MD5_REG_SIZE) != HAL_OK) {
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| 143 | ret = ASYNC_OP_E;
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| 144 | }
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| 145 | #else
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| 146 | HASH_DataIn(*(uint32_t*)local);
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| 147 | #endif
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| 148 |
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| 149 | AddLength(md5, MD5_REG_SIZE);
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| 150 | md5->buffLen = 0;
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| 151 | }
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| 152 | }
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| 153 | return ret;
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| 154 | }
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| 155 |
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| 156 | int wc_Md5Final(wc_Md5* md5, byte* hash)
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| 157 | {
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| 158 | int ret = 0;
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| 159 |
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| 160 | if (md5 == NULL || hash == NULL)
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| 161 | return BAD_FUNC_ARG;
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| 162 |
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| 163 | #ifdef WOLFSSL_STM32_CUBEMX
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| 164 | if (HAL_HASH_MD5_Start(&md5->hashHandle,
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| 165 | (byte*)md5->buffer, md5->buffLen,
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| 166 | (byte*)md5->digest, MD5_HW_TIMEOUT) != HAL_OK) {
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| 167 | ret = ASYNC_OP_E;
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| 168 | }
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| 169 | #else
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| 170 | __IO uint16_t nbvalidbitsdata = 0;
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| 171 |
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| 172 | /* finish reading any trailing bytes into FIFO */
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| 173 | if (md5->buffLen > 0) {
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| 174 | HASH_DataIn(*(uint32_t*)md5->buffer);
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| 175 | AddLength(md5, md5->buffLen);
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| 176 | }
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| 177 |
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| 178 | /* calculate number of valid bits in last word of input data */
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| 179 | nbvalidbitsdata = 8 * (md5->loLen % MD5_REG_SIZE);
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| 180 |
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| 181 | /* configure number of valid bits in last word of the data */
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| 182 | HASH_SetLastWordValidBitsNbr(nbvalidbitsdata);
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| 183 |
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| 184 | /* start HASH processor */
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| 185 | HASH_StartDigest();
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| 186 |
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| 187 | /* wait until Busy flag == RESET */
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| 188 | while (HASH_GetFlagStatus(HASH_FLAG_BUSY) != RESET) {}
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| 189 |
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| 190 | /* read message digest */
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| 191 | md5->digest[0] = HASH->HR[0];
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| 192 | md5->digest[1] = HASH->HR[1];
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| 193 | md5->digest[2] = HASH->HR[2];
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| 194 | md5->digest[3] = HASH->HR[3];
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| 195 |
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| 196 | ByteReverseWords(md5->digest, md5->digest, WC_MD5_DIGEST_SIZE);
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| 197 | #endif /* WOLFSSL_STM32_CUBEMX */
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| 198 |
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| 199 | XMEMCPY(hash, md5->digest, WC_MD5_DIGEST_SIZE);
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| 200 |
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| 201 | (void)wc_InitMd5(md5); /* reset state */
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| 202 |
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| 203 | return ret;
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| 204 | }
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| 205 |
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| 206 | #elif defined(FREESCALE_MMCAU_SHA)
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| 207 | #include "cau_api.h"
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| 208 | #define XTRANSFORM(S,B) Transform((S), (B))
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| 209 |
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| 210 | static int Transform(wc_Md5* md5, byte* data)
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| 211 | {
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| 212 | int ret = wolfSSL_CryptHwMutexLock();
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| 213 | if(ret == 0) {
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| 214 | #ifdef FREESCALE_MMCAU_CLASSIC_SHA
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| 215 | cau_md5_hash_n(data, 1, (unsigned char*)md5->digest);
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| 216 | #else
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| 217 | MMCAU_MD5_HashN(data, 1, (uint32_t*)md5->digest);
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| 218 | #endif
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| 219 | wolfSSL_CryptHwMutexUnLock();
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| 220 | }
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| 221 | return ret;
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| 222 | }
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| 223 |
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| 224 | #elif defined(WOLFSSL_PIC32MZ_HASH)
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| 225 | #include <wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h>
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| 226 | #define HAVE_MD5_CUST_API
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| 227 |
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| 228 | #else
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| 229 | #define NEED_SOFT_MD5
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| 230 |
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| 231 | #endif /* End Hardware Acceleration */
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| 232 |
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| 233 |
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| 234 | #ifdef NEED_SOFT_MD5
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| 235 |
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| 236 | #define XTRANSFORM(S,B) Transform((S))
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| 237 |
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| 238 | #define F1(x, y, z) (z ^ (x & (y ^ z)))
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| 239 | #define F2(x, y, z) F1(z, x, y)
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| 240 | #define F3(x, y, z) (x ^ y ^ z)
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| 241 | #define F4(x, y, z) (y ^ (x | ~z))
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| 242 |
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| 243 | #define MD5STEP(f, w, x, y, z, data, s) \
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| 244 | w = rotlFixed(w + f(x, y, z) + data, s) + x
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| 245 |
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| 246 | static int Transform(wc_Md5* md5)
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| 247 | {
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| 248 | /* Copy context->state[] to working vars */
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| 249 | word32 a = md5->digest[0];
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| 250 | word32 b = md5->digest[1];
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| 251 | word32 c = md5->digest[2];
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| 252 | word32 d = md5->digest[3];
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| 253 |
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| 254 | MD5STEP(F1, a, b, c, d, md5->buffer[0] + 0xd76aa478, 7);
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| 255 | MD5STEP(F1, d, a, b, c, md5->buffer[1] + 0xe8c7b756, 12);
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| 256 | MD5STEP(F1, c, d, a, b, md5->buffer[2] + 0x242070db, 17);
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| 257 | MD5STEP(F1, b, c, d, a, md5->buffer[3] + 0xc1bdceee, 22);
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| 258 | MD5STEP(F1, a, b, c, d, md5->buffer[4] + 0xf57c0faf, 7);
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| 259 | MD5STEP(F1, d, a, b, c, md5->buffer[5] + 0x4787c62a, 12);
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| 260 | MD5STEP(F1, c, d, a, b, md5->buffer[6] + 0xa8304613, 17);
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| 261 | MD5STEP(F1, b, c, d, a, md5->buffer[7] + 0xfd469501, 22);
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| 262 | MD5STEP(F1, a, b, c, d, md5->buffer[8] + 0x698098d8, 7);
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| 263 | MD5STEP(F1, d, a, b, c, md5->buffer[9] + 0x8b44f7af, 12);
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| 264 | MD5STEP(F1, c, d, a, b, md5->buffer[10] + 0xffff5bb1, 17);
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| 265 | MD5STEP(F1, b, c, d, a, md5->buffer[11] + 0x895cd7be, 22);
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| 266 | MD5STEP(F1, a, b, c, d, md5->buffer[12] + 0x6b901122, 7);
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| 267 | MD5STEP(F1, d, a, b, c, md5->buffer[13] + 0xfd987193, 12);
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| 268 | MD5STEP(F1, c, d, a, b, md5->buffer[14] + 0xa679438e, 17);
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| 269 | MD5STEP(F1, b, c, d, a, md5->buffer[15] + 0x49b40821, 22);
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| 270 |
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| 271 | MD5STEP(F2, a, b, c, d, md5->buffer[1] + 0xf61e2562, 5);
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| 272 | MD5STEP(F2, d, a, b, c, md5->buffer[6] + 0xc040b340, 9);
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| 273 | MD5STEP(F2, c, d, a, b, md5->buffer[11] + 0x265e5a51, 14);
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| 274 | MD5STEP(F2, b, c, d, a, md5->buffer[0] + 0xe9b6c7aa, 20);
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| 275 | MD5STEP(F2, a, b, c, d, md5->buffer[5] + 0xd62f105d, 5);
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| 276 | MD5STEP(F2, d, a, b, c, md5->buffer[10] + 0x02441453, 9);
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| 277 | MD5STEP(F2, c, d, a, b, md5->buffer[15] + 0xd8a1e681, 14);
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| 278 | MD5STEP(F2, b, c, d, a, md5->buffer[4] + 0xe7d3fbc8, 20);
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| 279 | MD5STEP(F2, a, b, c, d, md5->buffer[9] + 0x21e1cde6, 5);
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| 280 | MD5STEP(F2, d, a, b, c, md5->buffer[14] + 0xc33707d6, 9);
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| 281 | MD5STEP(F2, c, d, a, b, md5->buffer[3] + 0xf4d50d87, 14);
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| 282 | MD5STEP(F2, b, c, d, a, md5->buffer[8] + 0x455a14ed, 20);
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| 283 | MD5STEP(F2, a, b, c, d, md5->buffer[13] + 0xa9e3e905, 5);
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| 284 | MD5STEP(F2, d, a, b, c, md5->buffer[2] + 0xfcefa3f8, 9);
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| 285 | MD5STEP(F2, c, d, a, b, md5->buffer[7] + 0x676f02d9, 14);
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| 286 | MD5STEP(F2, b, c, d, a, md5->buffer[12] + 0x8d2a4c8a, 20);
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| 287 |
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| 288 | MD5STEP(F3, a, b, c, d, md5->buffer[5] + 0xfffa3942, 4);
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| 289 | MD5STEP(F3, d, a, b, c, md5->buffer[8] + 0x8771f681, 11);
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| 290 | MD5STEP(F3, c, d, a, b, md5->buffer[11] + 0x6d9d6122, 16);
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| 291 | MD5STEP(F3, b, c, d, a, md5->buffer[14] + 0xfde5380c, 23);
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| 292 | MD5STEP(F3, a, b, c, d, md5->buffer[1] + 0xa4beea44, 4);
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| 293 | MD5STEP(F3, d, a, b, c, md5->buffer[4] + 0x4bdecfa9, 11);
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| 294 | MD5STEP(F3, c, d, a, b, md5->buffer[7] + 0xf6bb4b60, 16);
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| 295 | MD5STEP(F3, b, c, d, a, md5->buffer[10] + 0xbebfbc70, 23);
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| 296 | MD5STEP(F3, a, b, c, d, md5->buffer[13] + 0x289b7ec6, 4);
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| 297 | MD5STEP(F3, d, a, b, c, md5->buffer[0] + 0xeaa127fa, 11);
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| 298 | MD5STEP(F3, c, d, a, b, md5->buffer[3] + 0xd4ef3085, 16);
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| 299 | MD5STEP(F3, b, c, d, a, md5->buffer[6] + 0x04881d05, 23);
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| 300 | MD5STEP(F3, a, b, c, d, md5->buffer[9] + 0xd9d4d039, 4);
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| 301 | MD5STEP(F3, d, a, b, c, md5->buffer[12] + 0xe6db99e5, 11);
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| 302 | MD5STEP(F3, c, d, a, b, md5->buffer[15] + 0x1fa27cf8, 16);
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| 303 | MD5STEP(F3, b, c, d, a, md5->buffer[2] + 0xc4ac5665, 23);
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| 304 |
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| 305 | MD5STEP(F4, a, b, c, d, md5->buffer[0] + 0xf4292244, 6);
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| 306 | MD5STEP(F4, d, a, b, c, md5->buffer[7] + 0x432aff97, 10);
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| 307 | MD5STEP(F4, c, d, a, b, md5->buffer[14] + 0xab9423a7, 15);
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| 308 | MD5STEP(F4, b, c, d, a, md5->buffer[5] + 0xfc93a039, 21);
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| 309 | MD5STEP(F4, a, b, c, d, md5->buffer[12] + 0x655b59c3, 6);
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| 310 | MD5STEP(F4, d, a, b, c, md5->buffer[3] + 0x8f0ccc92, 10);
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| 311 | MD5STEP(F4, c, d, a, b, md5->buffer[10] + 0xffeff47d, 15);
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| 312 | MD5STEP(F4, b, c, d, a, md5->buffer[1] + 0x85845dd1, 21);
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| 313 | MD5STEP(F4, a, b, c, d, md5->buffer[8] + 0x6fa87e4f, 6);
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| 314 | MD5STEP(F4, d, a, b, c, md5->buffer[15] + 0xfe2ce6e0, 10);
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| 315 | MD5STEP(F4, c, d, a, b, md5->buffer[6] + 0xa3014314, 15);
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| 316 | MD5STEP(F4, b, c, d, a, md5->buffer[13] + 0x4e0811a1, 21);
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| 317 | MD5STEP(F4, a, b, c, d, md5->buffer[4] + 0xf7537e82, 6);
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| 318 | MD5STEP(F4, d, a, b, c, md5->buffer[11] + 0xbd3af235, 10);
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| 319 | MD5STEP(F4, c, d, a, b, md5->buffer[2] + 0x2ad7d2bb, 15);
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| 320 | MD5STEP(F4, b, c, d, a, md5->buffer[9] + 0xeb86d391, 21);
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| 321 |
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| 322 | /* Add the working vars back into digest state[] */
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| 323 | md5->digest[0] += a;
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| 324 | md5->digest[1] += b;
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| 325 | md5->digest[2] += c;
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| 326 | md5->digest[3] += d;
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| 327 |
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| 328 | return 0;
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| 329 | }
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| 330 | #endif /* NEED_SOFT_MD5 */
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| 331 |
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| 332 | #if !defined(HAVE_MD5_CUST_API) || defined(STM32_HASH)
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| 333 | static INLINE void AddLength(wc_Md5* md5, word32 len)
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| 334 | {
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| 335 | word32 tmp = md5->loLen;
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| 336 | if ((md5->loLen += len) < tmp) {
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| 337 | md5->hiLen++; /* carry low to high */
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| 338 | }
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| 339 | }
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| 340 | #endif
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| 341 |
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| 342 | #ifndef HAVE_MD5_CUST_API
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| 343 | static int _InitMd5(wc_Md5* md5)
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| 344 | {
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| 345 | int ret = 0;
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| 346 |
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| 347 | md5->digest[0] = 0x67452301L;
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| 348 | md5->digest[1] = 0xefcdab89L;
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| 349 | md5->digest[2] = 0x98badcfeL;
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| 350 | md5->digest[3] = 0x10325476L;
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| 351 |
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| 352 | md5->buffLen = 0;
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| 353 | md5->loLen = 0;
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| 354 | md5->hiLen = 0;
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| 355 |
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| 356 | return ret;
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| 357 | }
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| 358 |
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| 359 | int wc_InitMd5_ex(wc_Md5* md5, void* heap, int devId)
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| 360 | {
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| 361 | int ret = 0;
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| 362 |
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| 363 | if (md5 == NULL)
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| 364 | return BAD_FUNC_ARG;
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| 365 |
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| 366 | md5->heap = heap;
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| 367 |
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| 368 | ret = _InitMd5(md5);
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| 369 | if (ret != 0)
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| 370 | return ret;
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| 371 |
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| 372 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_MD5)
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| 373 | ret = wolfAsync_DevCtxInit(&md5->asyncDev, WOLFSSL_ASYNC_MARKER_MD5,
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| 374 | md5->heap, devId);
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| 375 | #else
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| 376 | (void)devId;
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| 377 | #endif
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| 378 | return ret;
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| 379 | }
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| 380 |
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| 381 | int wc_Md5Update(wc_Md5* md5, const byte* data, word32 len)
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| 382 | {
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| 383 | int ret = 0;
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| 384 | byte* local;
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| 385 |
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| 386 | if (md5 == NULL || (data == NULL && len > 0)) {
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| 387 | return BAD_FUNC_ARG;
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| 388 | }
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| 389 |
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| 390 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_MD5)
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| 391 | if (md5->asyncDev.marker == WOLFSSL_ASYNC_MARKER_MD5) {
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| 392 | #if defined(HAVE_INTEL_QA)
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| 393 | return IntelQaSymMd5(&md5->asyncDev, NULL, data, len);
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| 394 | #endif
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| 395 | }
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| 396 | #endif /* WOLFSSL_ASYNC_CRYPT */
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| 397 |
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| 398 | /* do block size increments */
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| 399 | local = (byte*)md5->buffer;
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| 400 |
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| 401 | /* check that internal buffLen is valid */
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| 402 | if (md5->buffLen >= WC_MD5_BLOCK_SIZE)
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| 403 | return BUFFER_E;
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| 404 |
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| 405 | while (len) {
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| 406 | word32 add = min(len, WC_MD5_BLOCK_SIZE - md5->buffLen);
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| 407 | XMEMCPY(&local[md5->buffLen], data, add);
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| 408 |
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| 409 | md5->buffLen += add;
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| 410 | data += add;
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| 411 | len -= add;
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| 412 |
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| 413 | if (md5->buffLen == WC_MD5_BLOCK_SIZE) {
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| 414 | #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
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| 415 | ByteReverseWords(md5->buffer, md5->buffer, WC_MD5_BLOCK_SIZE);
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| 416 | #endif
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| 417 | XTRANSFORM(md5, local);
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| 418 | AddLength(md5, WC_MD5_BLOCK_SIZE);
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| 419 | md5->buffLen = 0;
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| 420 | }
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| 421 | }
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| 422 | return ret;
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| 423 | }
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| 424 |
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| 425 | int wc_Md5Final(wc_Md5* md5, byte* hash)
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| 426 | {
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| 427 | byte* local;
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| 428 |
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| 429 | if (md5 == NULL || hash == NULL) {
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| 430 | return BAD_FUNC_ARG;
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| 431 | }
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| 432 |
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| 433 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_MD5)
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| 434 | if (md5->asyncDev.marker == WOLFSSL_ASYNC_MARKER_MD5) {
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| 435 | #if defined(HAVE_INTEL_QA)
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| 436 | return IntelQaSymMd5(&md5->asyncDev, hash, NULL, WC_MD5_DIGEST_SIZE);
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| 437 | #endif
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| 438 | }
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| 439 | #endif /* WOLFSSL_ASYNC_CRYPT */
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| 440 |
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| 441 | local = (byte*)md5->buffer;
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| 442 |
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| 443 | AddLength(md5, md5->buffLen); /* before adding pads */
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| 444 | local[md5->buffLen++] = 0x80; /* add 1 */
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| 445 |
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| 446 | /* pad with zeros */
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| 447 | if (md5->buffLen > WC_MD5_PAD_SIZE) {
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| 448 | XMEMSET(&local[md5->buffLen], 0, WC_MD5_BLOCK_SIZE - md5->buffLen);
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| 449 | md5->buffLen += WC_MD5_BLOCK_SIZE - md5->buffLen;
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| 450 |
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| 451 | #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
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| 452 | ByteReverseWords(md5->buffer, md5->buffer, WC_MD5_BLOCK_SIZE);
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| 453 | #endif
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| 454 | XTRANSFORM(md5, local);
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| 455 | md5->buffLen = 0;
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| 456 | }
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| 457 | XMEMSET(&local[md5->buffLen], 0, WC_MD5_PAD_SIZE - md5->buffLen);
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| 458 |
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| 459 | #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
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| 460 | ByteReverseWords(md5->buffer, md5->buffer, WC_MD5_BLOCK_SIZE);
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| 461 | #endif
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| 462 |
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| 463 | /* put lengths in bits */
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| 464 | md5->hiLen = (md5->loLen >> (8*sizeof(md5->loLen) - 3)) +
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| 465 | (md5->hiLen << 3);
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| 466 | md5->loLen = md5->loLen << 3;
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| 467 |
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| 468 | /* store lengths */
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| 469 | /* ! length ordering dependent on digest endian type ! */
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| 470 | XMEMCPY(&local[WC_MD5_PAD_SIZE], &md5->loLen, sizeof(word32));
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| 471 | XMEMCPY(&local[WC_MD5_PAD_SIZE + sizeof(word32)], &md5->hiLen, sizeof(word32));
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| 472 |
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| 473 | /* final transform and result to hash */
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| 474 | XTRANSFORM(md5, local);
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| 475 | #ifdef BIG_ENDIAN_ORDER
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| 476 | ByteReverseWords(md5->digest, md5->digest, WC_MD5_DIGEST_SIZE);
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| 477 | #endif
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| 478 | XMEMCPY(hash, md5->digest, WC_MD5_DIGEST_SIZE);
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| 479 |
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| 480 | return _InitMd5(md5); /* reset state */
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| 481 | }
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| 482 | #endif /* !HAVE_MD5_CUST_API */
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| 483 |
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| 484 |
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| 485 | int wc_InitMd5(wc_Md5* md5)
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| 486 | {
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| 487 | if (md5 == NULL) {
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| 488 | return BAD_FUNC_ARG;
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| 489 | }
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| 490 | return wc_InitMd5_ex(md5, NULL, INVALID_DEVID);
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| 491 | }
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| 492 |
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| 493 | void wc_Md5Free(wc_Md5* md5)
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| 494 | {
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| 495 | if (md5 == NULL)
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| 496 | return;
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| 497 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_MD5)
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| 498 | wolfAsync_DevCtxFree(&md5->asyncDev, WOLFSSL_ASYNC_MARKER_MD5);
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| 499 | #endif /* WOLFSSL_ASYNC_CRYPT */
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| 500 | }
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| 501 |
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| 502 | int wc_Md5GetHash(wc_Md5* md5, byte* hash)
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| 503 | {
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| 504 | int ret;
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| 505 | wc_Md5 tmpMd5;
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| 506 |
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| 507 | if (md5 == NULL || hash == NULL)
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| 508 | return BAD_FUNC_ARG;
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| 509 |
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| 510 | ret = wc_Md5Copy(md5, &tmpMd5);
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| 511 | if (ret == 0) {
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| 512 | ret = wc_Md5Final(&tmpMd5, hash);
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| 513 | }
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| 514 |
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| 515 | return ret;
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| 516 | }
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| 517 |
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| 518 | int wc_Md5Copy(wc_Md5* src, wc_Md5* dst)
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| 519 | {
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| 520 | int ret = 0;
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| 521 |
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| 522 | if (src == NULL || dst == NULL)
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| 523 | return BAD_FUNC_ARG;
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| 524 |
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| 525 | XMEMCPY(dst, src, sizeof(wc_Md5));
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| 526 |
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| 527 | #ifdef WOLFSSL_ASYNC_CRYPT
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| 528 | ret = wolfAsync_DevCopy(&src->asyncDev, &dst->asyncDev);
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| 529 | #endif
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| 530 | #ifdef WOLFSSL_PIC32MZ_HASH
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| 531 | ret = wc_Pic32HashCopy(&src->cache, &dst->cache);
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| 532 | #endif
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| 533 |
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| 534 | return ret;
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| 535 | }
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| 536 |
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| 537 | #endif /* WOLFSSL_TI_HASH */
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| 538 | #endif /* NO_MD5 */
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