mirror of https://github.com/ARMmbed/mbed-os.git
61 lines
2.3 KiB
C
61 lines
2.3 KiB
C
/**
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* \file sha1.h
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*
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* \brief This file contains SHA-1 definitions and functions.
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*
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* The Secure Hash Algorithm 1 (SHA-1) cryptographic hash function is defined in
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* <em>FIPS 180-4: Secure Hash Standard (SHS)</em>.
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*
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* \warning SHA-1 is considered a weak message digest and its use constitutes
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* a security risk. We recommend considering stronger message
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* digests instead.
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*/
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/*
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* Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved
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* Copyright (C) 2019-2020, STMicroelectronics, All Rights Reserved
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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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* This file implements STMicroelectronics SHA1 API with HW services based
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* on mbed TLS API
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*/
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#ifndef MBEDTLS_SHA1_ALT_H
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#define MBEDTLS_SHA1_ALT_H
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#if defined (MBEDTLS_SHA1_ALT)
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/* Includes ------------------------------------------------------------------*/
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#include "hash_stm32.h"
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#define ST_SHA1_BLOCK_SIZE ((size_t) 64) /*!< HW handles 512 bits, ie 64 bytes */
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#define ST_SHA1_NB_HASH_REG ((uint32_t)57) /*!< Number of HASH HW context Registers:
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CR + STR + IMR + CSR[54] */
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/**
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* \brief SHA-1 context structure
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*/
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typedef struct mbedtls_sha1_context {
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HASH_HandleTypeDef hhash; /*!< Handle of HASH HAL */
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uint8_t sbuf[ST_SHA1_BLOCK_SIZE]; /*!< Buffer to store input data until ST_SHA1_BLOCK_SIZE
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is reached, or until last input data is reached */
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uint8_t sbuf_len; /*!< Number of bytes stored in sbuf */
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uint32_t ctx_save_regs[ST_SHA1_NB_HASH_REG];
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}
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mbedtls_sha1_context;
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#endif /* MBEDTLS_SHA1_ALT */
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#endif /* MBEDTLS_SHA1_ALT_H */
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