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mbedtls/F439ZI: add md5 HASH feature
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‎features/mbedtls/targets/TARGET_STM/TARGET_STM32F4/TARGET_NUCLEO_F439ZI/mbedtls_device.h

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#define MBEDTLS_AES_ALT
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#define MBEDTLS_MD5_ALT
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#define MBEDTLS_MD5_C
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#endif /* MBEDTLS_DEVICE_H */

‎features/mbedtls/targets/TARGET_STM/md5_alt.c

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/*
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* MD5 hw acceleration
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*******************************************************************************
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* Copyright (c) 2017, STMicroelectronics
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include "mbedtls/md5.h"
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#if defined(MBEDTLS_MD5_ALT)
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/* Implementation that should never be optimized out by the compiler */
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static void mbedtls_zeroize( void *v, size_t n ) {
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volatile unsigned char *p = v; while( n-- ) *p++ = 0;
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}
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void mbedtls_md5_init( mbedtls_md5_context *ctx )
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{
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memset( ctx, 0, sizeof( mbedtls_md5_context ) );
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/* Enable HASH clock */
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__HAL_RCC_HASH_CLK_ENABLE();
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}
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void mbedtls_md5_free( mbedtls_md5_context *ctx )
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{
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if( ctx == NULL )
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return;
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/* Force the HASH Periheral Clock Reset */
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__HAL_RCC_HASH_FORCE_RESET();
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/* Release the HASH Periheral Clock Reset */
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__HAL_RCC_HASH_RELEASE_RESET();
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mbedtls_zeroize( ctx, sizeof( mbedtls_md5_context ) );
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}
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void mbedtls_md5_clone( mbedtls_md5_context *dst,
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const mbedtls_md5_context *src )
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{
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*dst = *src;
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}
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/*
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* MD5 context setup
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*/
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void mbedtls_md5_starts( mbedtls_md5_context *ctx )
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{
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/* HASH IP initialization */
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HAL_HASH_DeInit(&ctx->hhash_md5);
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/* HASH Configuration */
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ctx->hhash_md5.Init.DataType = HASH_DATATYPE_8B;
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HAL_HASH_Init(&ctx->hhash_md5);
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}
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void mbedtls_md5_process( mbedtls_md5_context *ctx, const unsigned char data[64] )
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{
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HAL_HASH_MD5_Accumulate(&ctx->hhash_md5, (uint8_t *)data, 64);
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}
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/*
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* MD5 process buffer
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*/
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void mbedtls_md5_update( mbedtls_md5_context *ctx, const unsigned char *input, size_t ilen )
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{
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HAL_HASH_MD5_Accumulate(&ctx->hhash_md5, (uint8_t *)input, ilen);
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}
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/*
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* MD5 final digest
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*/
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void mbedtls_md5_finish( mbedtls_md5_context *ctx, unsigned char output[16] )
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{
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__HAL_HASH_START_DIGEST();
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HAL_HASH_MD5_Finish(&ctx->hhash_md5, output, 10);
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}
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#endif /* MBEDTLS_MD5_ALT */

‎features/mbedtls/targets/TARGET_STM/md5_alt.h

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/**
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* \file md5_alt.h
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*
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* \brief MD5 hw acceleration (hash function)
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*
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* Copyright (c) 2017, STMicroelectronics
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef MBEDTLS_MD5_ALT_H
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#define MBEDTLS_MD5_ALT_H
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#if defined(MBEDTLS_MD5_ALT)
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#include "mbedtls/platform.h"
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#include "mbedtls/config.h"
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#include "cmsis.h"
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#include <string.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief MD5 context structure
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*/
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typedef struct
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{
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uint32_t total[2]; /*!< number of bytes processed */
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uint32_t state[4]; /*!< intermediate digest state */
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unsigned char buffer[64]; /*!< data block being processed */
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HASH_HandleTypeDef hhash_md5;
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}
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mbedtls_md5_context;
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/**
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* \brief Initialize MD5 context
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*
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* \param ctx MD5 context to be initialized
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*/
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void mbedtls_md5_init( mbedtls_md5_context *ctx );
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/**
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* \brief Clear MD5 context
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*
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* \param ctx MD5 context to be cleared
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*/
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void mbedtls_md5_free( mbedtls_md5_context *ctx );
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/**
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* \brief Clone (the state of) an MD5 context
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*
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* \param dst The destination context
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* \param src The context to be cloned
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*/
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void mbedtls_md5_clone( mbedtls_md5_context *dst,
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const mbedtls_md5_context *src );
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/**
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* \brief MD5 context setup
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*
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* \param ctx context to be initialized
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*/
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void mbedtls_md5_starts( mbedtls_md5_context *ctx );
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/**
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* \brief MD5 process buffer
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*
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* \param ctx MD5 context
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* \param input buffer holding the data
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* \param ilen length of the input data
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*/
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void mbedtls_md5_update( mbedtls_md5_context *ctx, const unsigned char *input, size_t ilen );
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/**
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* \brief MD5 final digest
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*
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* \param ctx MD5 context
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* \param output MD5 checksum result
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*/
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void mbedtls_md5_finish( mbedtls_md5_context *ctx, unsigned char output[16] );
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/* Internal use */
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void mbedtls_md5_process( mbedtls_md5_context *ctx, const unsigned char data[64] );
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#ifdef __cplusplus
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}
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief Output = MD5( input buffer )
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*
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* \param input buffer holding the data
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* \param ilen length of the input data
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* \param output MD5 checksum result
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*/
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void mbedtls_md5( const unsigned char *input, size_t ilen, unsigned char output[16] );
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/**
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* \brief Checkup routine
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*
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* \return 0 if successful, or 1 if the test failed
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*/
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int mbedtls_md5_self_test( int verbose );
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#ifdef __cplusplus
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}
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#endif
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#endif /* MBEDTLS_MD5_ALT */
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#endif /* md5_alt.h */

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