539 lines
16 KiB
C
539 lines
16 KiB
C
/* md5.c
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*
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* Copyright (C) 2006-2017 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <wolfssl/wolfcrypt/settings.h>
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#if !defined(NO_MD5)
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#if defined(WOLFSSL_TI_HASH)
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/* #include <wolfcrypt/src/port/ti/ti-hash.c> included by wc_port.c */
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#else
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#include <wolfssl/wolfcrypt/md5.h>
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#include <wolfssl/wolfcrypt/error-crypt.h>
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#include <wolfssl/wolfcrypt/logging.h>
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#ifdef NO_INLINE
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#include <wolfssl/wolfcrypt/misc.h>
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#else
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#define WOLFSSL_MISC_INCLUDED
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#include <wolfcrypt/src/misc.c>
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#endif
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static INLINE void AddLength(wc_Md5* md5, word32 len);
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/* Hardware Acceleration */
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#if defined(STM32_HASH)
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/*
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* STM32F2/F4/F7 hardware MD5 support through the HASH_* API's from the
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* Standard Peripheral Library or CubeMX (See note in README).
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*/
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#define HAVE_MD5_CUST_API
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/* STM32 register size, bytes */
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#ifdef WOLFSSL_STM32_CUBEMX
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#define MD5_REG_SIZE WC_MD5_BLOCK_SIZE
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#else
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#define MD5_REG_SIZE 4
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/* STM32 struct notes:
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* md5->buffer = first 4 bytes used to hold partial block if needed
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* md5->buffLen = num bytes currently stored in md5->buffer
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* md5->loLen = num bytes that have been written to STM32 FIFO
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*/
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#endif
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#define MD5_HW_TIMEOUT 0xFF
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int wc_InitMd5_ex(wc_Md5* md5, void* heap, int devId)
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{
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if (md5 == NULL)
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return BAD_FUNC_ARG;
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(void)heap;
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(void)devId;
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md5->heap = heap;
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XMEMSET(md5->buffer, 0, sizeof(md5->buffer));
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md5->buffLen = 0;
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md5->loLen = 0;
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md5->hiLen = 0;
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/* initialize HASH peripheral */
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#ifdef WOLFSSL_STM32_CUBEMX
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HAL_HASH_DeInit(&md5->hashHandle);
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md5->hashHandle.Init.DataType = HASH_DATATYPE_8B;
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if (HAL_HASH_Init(&md5->hashHandle) != HAL_OK) {
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return ASYNC_INIT_E;
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}
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/* reset the hash control register */
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/* required because Cube MX is not clearing algo bits */
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HASH->CR &= ~HASH_CR_ALGO;
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#else
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HASH_DeInit();
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/* reset the control register */
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HASH->CR &= ~ (HASH_CR_ALGO | HASH_CR_DATATYPE | HASH_CR_MODE);
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/* configure algo used, algo mode, datatype */
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HASH->CR |= (HASH_AlgoSelection_MD5 | HASH_AlgoMode_HASH
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| HASH_DataType_8b);
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/* reset HASH processor */
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HASH->CR |= HASH_CR_INIT;
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#endif
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return 0;
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}
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int wc_Md5Update(wc_Md5* md5, const byte* data, word32 len)
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{
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int ret = 0;
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byte* local;
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if (md5 == NULL || (data == NULL && len > 0)) {
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return BAD_FUNC_ARG;
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}
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/* do block size increments */
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local = (byte*)md5->buffer;
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/* check that internal buffLen is valid */
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if (md5->buffLen >= MD5_REG_SIZE)
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return BUFFER_E;
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while (len) {
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word32 add = min(len, MD5_REG_SIZE - md5->buffLen);
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XMEMCPY(&local[md5->buffLen], data, add);
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md5->buffLen += add;
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data += add;
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len -= add;
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if (md5->buffLen == MD5_REG_SIZE) {
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#ifdef WOLFSSL_STM32_CUBEMX
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if (HAL_HASH_MD5_Accumulate(
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&md5->hashHandle, local, MD5_REG_SIZE) != HAL_OK) {
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ret = ASYNC_OP_E;
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}
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#else
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HASH_DataIn(*(uint32_t*)local);
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#endif
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AddLength(md5, MD5_REG_SIZE);
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md5->buffLen = 0;
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}
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}
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return ret;
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}
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int wc_Md5Final(wc_Md5* md5, byte* hash)
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{
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int ret = 0;
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if (md5 == NULL || hash == NULL)
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return BAD_FUNC_ARG;
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#ifdef WOLFSSL_STM32_CUBEMX
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if (HAL_HASH_MD5_Start(&md5->hashHandle,
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(byte*)md5->buffer, md5->buffLen,
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(byte*)md5->digest, MD5_HW_TIMEOUT) != HAL_OK) {
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ret = ASYNC_OP_E;
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}
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#else
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__IO uint16_t nbvalidbitsdata = 0;
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/* finish reading any trailing bytes into FIFO */
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if (md5->buffLen > 0) {
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HASH_DataIn(*(uint32_t*)md5->buffer);
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AddLength(md5, md5->buffLen);
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}
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/* calculate number of valid bits in last word of input data */
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nbvalidbitsdata = 8 * (md5->loLen % MD5_REG_SIZE);
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/* configure number of valid bits in last word of the data */
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HASH_SetLastWordValidBitsNbr(nbvalidbitsdata);
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/* start HASH processor */
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HASH_StartDigest();
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/* wait until Busy flag == RESET */
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while (HASH_GetFlagStatus(HASH_FLAG_BUSY) != RESET) {}
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/* read message digest */
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md5->digest[0] = HASH->HR[0];
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md5->digest[1] = HASH->HR[1];
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md5->digest[2] = HASH->HR[2];
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md5->digest[3] = HASH->HR[3];
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ByteReverseWords(md5->digest, md5->digest, WC_MD5_DIGEST_SIZE);
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#endif /* WOLFSSL_STM32_CUBEMX */
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XMEMCPY(hash, md5->digest, WC_MD5_DIGEST_SIZE);
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(void)wc_InitMd5(md5); /* reset state */
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return ret;
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}
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#elif defined(FREESCALE_MMCAU_SHA)
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#include "cau_api.h"
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#define XTRANSFORM(S,B) Transform((S), (B))
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static int Transform(wc_Md5* md5, byte* data)
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{
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int ret = wolfSSL_CryptHwMutexLock();
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if(ret == 0) {
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#ifdef FREESCALE_MMCAU_CLASSIC_SHA
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cau_md5_hash_n(data, 1, (unsigned char*)md5->digest);
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#else
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MMCAU_MD5_HashN(data, 1, (uint32_t*)md5->digest);
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#endif
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wolfSSL_CryptHwMutexUnLock();
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}
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return ret;
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}
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#elif defined(WOLFSSL_PIC32MZ_HASH)
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#include <wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h>
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#define HAVE_MD5_CUST_API
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#else
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#define NEED_SOFT_MD5
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#endif /* End Hardware Acceleration */
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#ifdef NEED_SOFT_MD5
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#define XTRANSFORM(S,B) Transform((S))
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#define F1(x, y, z) (z ^ (x & (y ^ z)))
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#define F2(x, y, z) F1(z, x, y)
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#define F3(x, y, z) (x ^ y ^ z)
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#define F4(x, y, z) (y ^ (x | ~z))
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#define MD5STEP(f, w, x, y, z, data, s) \
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w = rotlFixed(w + f(x, y, z) + data, s) + x
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static int Transform(wc_Md5* md5)
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{
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/* Copy context->state[] to working vars */
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word32 a = md5->digest[0];
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word32 b = md5->digest[1];
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word32 c = md5->digest[2];
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word32 d = md5->digest[3];
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MD5STEP(F1, a, b, c, d, md5->buffer[0] + 0xd76aa478, 7);
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MD5STEP(F1, d, a, b, c, md5->buffer[1] + 0xe8c7b756, 12);
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MD5STEP(F1, c, d, a, b, md5->buffer[2] + 0x242070db, 17);
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MD5STEP(F1, b, c, d, a, md5->buffer[3] + 0xc1bdceee, 22);
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MD5STEP(F1, a, b, c, d, md5->buffer[4] + 0xf57c0faf, 7);
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MD5STEP(F1, d, a, b, c, md5->buffer[5] + 0x4787c62a, 12);
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MD5STEP(F1, c, d, a, b, md5->buffer[6] + 0xa8304613, 17);
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MD5STEP(F1, b, c, d, a, md5->buffer[7] + 0xfd469501, 22);
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MD5STEP(F1, a, b, c, d, md5->buffer[8] + 0x698098d8, 7);
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MD5STEP(F1, d, a, b, c, md5->buffer[9] + 0x8b44f7af, 12);
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MD5STEP(F1, c, d, a, b, md5->buffer[10] + 0xffff5bb1, 17);
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MD5STEP(F1, b, c, d, a, md5->buffer[11] + 0x895cd7be, 22);
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MD5STEP(F1, a, b, c, d, md5->buffer[12] + 0x6b901122, 7);
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MD5STEP(F1, d, a, b, c, md5->buffer[13] + 0xfd987193, 12);
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MD5STEP(F1, c, d, a, b, md5->buffer[14] + 0xa679438e, 17);
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MD5STEP(F1, b, c, d, a, md5->buffer[15] + 0x49b40821, 22);
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MD5STEP(F2, a, b, c, d, md5->buffer[1] + 0xf61e2562, 5);
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MD5STEP(F2, d, a, b, c, md5->buffer[6] + 0xc040b340, 9);
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MD5STEP(F2, c, d, a, b, md5->buffer[11] + 0x265e5a51, 14);
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MD5STEP(F2, b, c, d, a, md5->buffer[0] + 0xe9b6c7aa, 20);
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MD5STEP(F2, a, b, c, d, md5->buffer[5] + 0xd62f105d, 5);
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MD5STEP(F2, d, a, b, c, md5->buffer[10] + 0x02441453, 9);
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MD5STEP(F2, c, d, a, b, md5->buffer[15] + 0xd8a1e681, 14);
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MD5STEP(F2, b, c, d, a, md5->buffer[4] + 0xe7d3fbc8, 20);
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MD5STEP(F2, a, b, c, d, md5->buffer[9] + 0x21e1cde6, 5);
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MD5STEP(F2, d, a, b, c, md5->buffer[14] + 0xc33707d6, 9);
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MD5STEP(F2, c, d, a, b, md5->buffer[3] + 0xf4d50d87, 14);
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MD5STEP(F2, b, c, d, a, md5->buffer[8] + 0x455a14ed, 20);
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MD5STEP(F2, a, b, c, d, md5->buffer[13] + 0xa9e3e905, 5);
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MD5STEP(F2, d, a, b, c, md5->buffer[2] + 0xfcefa3f8, 9);
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MD5STEP(F2, c, d, a, b, md5->buffer[7] + 0x676f02d9, 14);
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MD5STEP(F2, b, c, d, a, md5->buffer[12] + 0x8d2a4c8a, 20);
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MD5STEP(F3, a, b, c, d, md5->buffer[5] + 0xfffa3942, 4);
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MD5STEP(F3, d, a, b, c, md5->buffer[8] + 0x8771f681, 11);
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MD5STEP(F3, c, d, a, b, md5->buffer[11] + 0x6d9d6122, 16);
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MD5STEP(F3, b, c, d, a, md5->buffer[14] + 0xfde5380c, 23);
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MD5STEP(F3, a, b, c, d, md5->buffer[1] + 0xa4beea44, 4);
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MD5STEP(F3, d, a, b, c, md5->buffer[4] + 0x4bdecfa9, 11);
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MD5STEP(F3, c, d, a, b, md5->buffer[7] + 0xf6bb4b60, 16);
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MD5STEP(F3, b, c, d, a, md5->buffer[10] + 0xbebfbc70, 23);
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MD5STEP(F3, a, b, c, d, md5->buffer[13] + 0x289b7ec6, 4);
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MD5STEP(F3, d, a, b, c, md5->buffer[0] + 0xeaa127fa, 11);
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MD5STEP(F3, c, d, a, b, md5->buffer[3] + 0xd4ef3085, 16);
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MD5STEP(F3, b, c, d, a, md5->buffer[6] + 0x04881d05, 23);
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MD5STEP(F3, a, b, c, d, md5->buffer[9] + 0xd9d4d039, 4);
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MD5STEP(F3, d, a, b, c, md5->buffer[12] + 0xe6db99e5, 11);
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MD5STEP(F3, c, d, a, b, md5->buffer[15] + 0x1fa27cf8, 16);
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MD5STEP(F3, b, c, d, a, md5->buffer[2] + 0xc4ac5665, 23);
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MD5STEP(F4, a, b, c, d, md5->buffer[0] + 0xf4292244, 6);
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MD5STEP(F4, d, a, b, c, md5->buffer[7] + 0x432aff97, 10);
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MD5STEP(F4, c, d, a, b, md5->buffer[14] + 0xab9423a7, 15);
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MD5STEP(F4, b, c, d, a, md5->buffer[5] + 0xfc93a039, 21);
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MD5STEP(F4, a, b, c, d, md5->buffer[12] + 0x655b59c3, 6);
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MD5STEP(F4, d, a, b, c, md5->buffer[3] + 0x8f0ccc92, 10);
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MD5STEP(F4, c, d, a, b, md5->buffer[10] + 0xffeff47d, 15);
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MD5STEP(F4, b, c, d, a, md5->buffer[1] + 0x85845dd1, 21);
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MD5STEP(F4, a, b, c, d, md5->buffer[8] + 0x6fa87e4f, 6);
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MD5STEP(F4, d, a, b, c, md5->buffer[15] + 0xfe2ce6e0, 10);
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MD5STEP(F4, c, d, a, b, md5->buffer[6] + 0xa3014314, 15);
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MD5STEP(F4, b, c, d, a, md5->buffer[13] + 0x4e0811a1, 21);
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MD5STEP(F4, a, b, c, d, md5->buffer[4] + 0xf7537e82, 6);
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MD5STEP(F4, d, a, b, c, md5->buffer[11] + 0xbd3af235, 10);
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MD5STEP(F4, c, d, a, b, md5->buffer[2] + 0x2ad7d2bb, 15);
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MD5STEP(F4, b, c, d, a, md5->buffer[9] + 0xeb86d391, 21);
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/* Add the working vars back into digest state[] */
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md5->digest[0] += a;
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md5->digest[1] += b;
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md5->digest[2] += c;
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md5->digest[3] += d;
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return 0;
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}
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#endif /* NEED_SOFT_MD5 */
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#if !defined(HAVE_MD5_CUST_API) || defined(STM32_HASH)
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static INLINE void AddLength(wc_Md5* md5, word32 len)
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{
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word32 tmp = md5->loLen;
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if ((md5->loLen += len) < tmp) {
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md5->hiLen++; /* carry low to high */
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}
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}
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#endif
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#ifndef HAVE_MD5_CUST_API
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static int _InitMd5(wc_Md5* md5)
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{
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int ret = 0;
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md5->digest[0] = 0x67452301L;
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md5->digest[1] = 0xefcdab89L;
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md5->digest[2] = 0x98badcfeL;
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md5->digest[3] = 0x10325476L;
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md5->buffLen = 0;
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md5->loLen = 0;
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md5->hiLen = 0;
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return ret;
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}
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int wc_InitMd5_ex(wc_Md5* md5, void* heap, int devId)
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{
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int ret = 0;
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if (md5 == NULL)
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return BAD_FUNC_ARG;
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md5->heap = heap;
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ret = _InitMd5(md5);
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if (ret != 0)
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return ret;
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#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_MD5)
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ret = wolfAsync_DevCtxInit(&md5->asyncDev, WOLFSSL_ASYNC_MARKER_MD5,
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md5->heap, devId);
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#else
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(void)devId;
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#endif
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return ret;
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}
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int wc_Md5Update(wc_Md5* md5, const byte* data, word32 len)
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{
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int ret = 0;
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byte* local;
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if (md5 == NULL || (data == NULL && len > 0)) {
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return BAD_FUNC_ARG;
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}
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#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_MD5)
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if (md5->asyncDev.marker == WOLFSSL_ASYNC_MARKER_MD5) {
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#if defined(HAVE_INTEL_QA)
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return IntelQaSymMd5(&md5->asyncDev, NULL, data, len);
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#endif
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}
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#endif /* WOLFSSL_ASYNC_CRYPT */
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/* do block size increments */
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local = (byte*)md5->buffer;
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/* check that internal buffLen is valid */
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if (md5->buffLen >= WC_MD5_BLOCK_SIZE)
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return BUFFER_E;
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while (len) {
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word32 add = min(len, WC_MD5_BLOCK_SIZE - md5->buffLen);
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XMEMCPY(&local[md5->buffLen], data, add);
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md5->buffLen += add;
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data += add;
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len -= add;
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if (md5->buffLen == WC_MD5_BLOCK_SIZE) {
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#if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
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ByteReverseWords(md5->buffer, md5->buffer, WC_MD5_BLOCK_SIZE);
|
|
#endif
|
|
XTRANSFORM(md5, local);
|
|
AddLength(md5, WC_MD5_BLOCK_SIZE);
|
|
md5->buffLen = 0;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int wc_Md5Final(wc_Md5* md5, byte* hash)
|
|
{
|
|
byte* local;
|
|
|
|
if (md5 == NULL || hash == NULL) {
|
|
return BAD_FUNC_ARG;
|
|
}
|
|
|
|
#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_MD5)
|
|
if (md5->asyncDev.marker == WOLFSSL_ASYNC_MARKER_MD5) {
|
|
#if defined(HAVE_INTEL_QA)
|
|
return IntelQaSymMd5(&md5->asyncDev, hash, NULL, WC_MD5_DIGEST_SIZE);
|
|
#endif
|
|
}
|
|
#endif /* WOLFSSL_ASYNC_CRYPT */
|
|
|
|
local = (byte*)md5->buffer;
|
|
|
|
AddLength(md5, md5->buffLen); /* before adding pads */
|
|
local[md5->buffLen++] = 0x80; /* add 1 */
|
|
|
|
/* pad with zeros */
|
|
if (md5->buffLen > WC_MD5_PAD_SIZE) {
|
|
XMEMSET(&local[md5->buffLen], 0, WC_MD5_BLOCK_SIZE - md5->buffLen);
|
|
md5->buffLen += WC_MD5_BLOCK_SIZE - md5->buffLen;
|
|
|
|
#if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
|
|
ByteReverseWords(md5->buffer, md5->buffer, WC_MD5_BLOCK_SIZE);
|
|
#endif
|
|
XTRANSFORM(md5, local);
|
|
md5->buffLen = 0;
|
|
}
|
|
XMEMSET(&local[md5->buffLen], 0, WC_MD5_PAD_SIZE - md5->buffLen);
|
|
|
|
#if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
|
|
ByteReverseWords(md5->buffer, md5->buffer, WC_MD5_BLOCK_SIZE);
|
|
#endif
|
|
|
|
/* put lengths in bits */
|
|
md5->hiLen = (md5->loLen >> (8*sizeof(md5->loLen) - 3)) +
|
|
(md5->hiLen << 3);
|
|
md5->loLen = md5->loLen << 3;
|
|
|
|
/* store lengths */
|
|
/* ! length ordering dependent on digest endian type ! */
|
|
XMEMCPY(&local[WC_MD5_PAD_SIZE], &md5->loLen, sizeof(word32));
|
|
XMEMCPY(&local[WC_MD5_PAD_SIZE + sizeof(word32)], &md5->hiLen, sizeof(word32));
|
|
|
|
/* final transform and result to hash */
|
|
XTRANSFORM(md5, local);
|
|
#ifdef BIG_ENDIAN_ORDER
|
|
ByteReverseWords(md5->digest, md5->digest, WC_MD5_DIGEST_SIZE);
|
|
#endif
|
|
XMEMCPY(hash, md5->digest, WC_MD5_DIGEST_SIZE);
|
|
|
|
return _InitMd5(md5); /* reset state */
|
|
}
|
|
#endif /* !HAVE_MD5_CUST_API */
|
|
|
|
|
|
int wc_InitMd5(wc_Md5* md5)
|
|
{
|
|
if (md5 == NULL) {
|
|
return BAD_FUNC_ARG;
|
|
}
|
|
return wc_InitMd5_ex(md5, NULL, INVALID_DEVID);
|
|
}
|
|
|
|
void wc_Md5Free(wc_Md5* md5)
|
|
{
|
|
if (md5 == NULL)
|
|
return;
|
|
#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_MD5)
|
|
wolfAsync_DevCtxFree(&md5->asyncDev, WOLFSSL_ASYNC_MARKER_MD5);
|
|
#endif /* WOLFSSL_ASYNC_CRYPT */
|
|
}
|
|
|
|
int wc_Md5GetHash(wc_Md5* md5, byte* hash)
|
|
{
|
|
int ret;
|
|
wc_Md5 tmpMd5;
|
|
|
|
if (md5 == NULL || hash == NULL)
|
|
return BAD_FUNC_ARG;
|
|
|
|
ret = wc_Md5Copy(md5, &tmpMd5);
|
|
if (ret == 0) {
|
|
ret = wc_Md5Final(&tmpMd5, hash);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int wc_Md5Copy(wc_Md5* src, wc_Md5* dst)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (src == NULL || dst == NULL)
|
|
return BAD_FUNC_ARG;
|
|
|
|
XMEMCPY(dst, src, sizeof(wc_Md5));
|
|
|
|
#ifdef WOLFSSL_ASYNC_CRYPT
|
|
ret = wolfAsync_DevCopy(&src->asyncDev, &dst->asyncDev);
|
|
#endif
|
|
#ifdef WOLFSSL_PIC32MZ_HASH
|
|
ret = wc_Pic32HashCopy(&src->cache, &dst->cache);
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif /* WOLFSSL_TI_HASH */
|
|
#endif /* NO_MD5 */
|