/** * \file md5.h * * \brief MD5 message digest algorithm (hash function) * * \warning MD5 is considered a weak message digest and its use constitutes a * security risk. We recommend considering stronger message * digests instead. */ /* * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved * Copyright (C) 2019-2020, STMicroelectronics, All Rights Reserved * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * This file implements STMicroelectronics MD5 API with HW services based * on mbed TLS API */ #ifndef MBEDTLS_MD5_ALT_H #define MBEDTLS_MD5_ALT_H #if defined (MBEDTLS_MD5_ALT) /* Includes ------------------------------------------------------------------*/ #include "hash_stm32.h" #ifndef MBEDTLS_ERR_MD5_BAD_INPUT_DATA #define MBEDTLS_ERR_MD5_BAD_INPUT_DATA -0x00AF #endif #define ST_MD5_BLOCK_SIZE ((size_t) 64) /*!< HW handles 512 bits, ie 64 bytes */ #define ST_MD5_NB_HASH_REG ((uint32_t)57) /*!< Number of HASH HW context Registers: CR + STR + IMR + CSR[54] */ /** * \brief MD5 context structure * * STMicroelectronics edition */ typedef struct mbedtls_md5_context { HASH_HandleTypeDef hhash; /*!< Handle of HASH HAL */ uint8_t sbuf[ST_MD5_BLOCK_SIZE]; /*!< Buffer to store input data until ST_MD5_BLOCK_SIZE is reached, or until last input data is reached */ uint8_t sbuf_len; /*!< Number of bytes stored in sbuf */ uint32_t ctx_save_regs[ST_MD5_NB_HASH_REG]; } mbedtls_md5_context; #endif /* MBEDTLS_MD5_ALT */ #endif /* MBEDTLS_MD5_ALT_H */