mirror of https://github.com/ARMmbed/mbed-os.git
149 lines
4.4 KiB
C
149 lines
4.4 KiB
C
/*
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* sha1_alt.h
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*
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* Copyright (C) 2018, Arm Limited, 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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*/
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#ifndef __SHA1_ALT__
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#define __SHA1_ALT__
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#if defined(MBEDTLS_SHA1_ALT)
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#include "crys_hash.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 SHA-1 context structure
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*/
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typedef struct
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{
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CRYS_HASHUserContext_t crys_hash_ctx;
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} mbedtls_sha1_context;
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/**
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* \brief This function initializes a SHA-1 context.
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*
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* \param ctx The SHA-1 context to initialize.
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*
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* \warning SHA-1 is considered a weak message digest and its use
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* constitutes a security risk. We recommend considering
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* stronger message digests instead.
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*
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*/
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void mbedtls_sha1_init( mbedtls_sha1_context *ctx );
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/**
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* \brief This function clears a SHA-1 context.
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*
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* \param ctx The SHA-1 context to clear.
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*
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* \warning SHA-1 is considered a weak message digest and its use
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* constitutes a security risk. We recommend considering
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* stronger message digests instead.
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*
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*/
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void mbedtls_sha1_free( mbedtls_sha1_context *ctx );
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/**
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* \brief This function clones the state of a SHA-1 context.
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*
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* \param dst The destination context.
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* \param src The context to clone.
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*
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* \warning SHA-1 is considered a weak message digest and its use
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* constitutes a security risk. We recommend considering
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* stronger message digests instead.
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*
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*/
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void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
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const mbedtls_sha1_context *src );
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/**
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* \brief This function starts a SHA-1 checksum calculation.
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*
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* \param ctx The context to initialize.
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*
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* \return \c 0 if successful
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*
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* \warning SHA-1 is considered a weak message digest and its use
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* constitutes a security risk. We recommend considering
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* stronger message digests instead.
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*
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*/
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int mbedtls_sha1_starts_ret( mbedtls_sha1_context *ctx );
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/**
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* \brief This function feeds an input buffer into an ongoing SHA-1
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* checksum calculation.
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*
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* \param ctx The SHA-1 context.
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* \param input The buffer holding the input data.
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* \param ilen The length of the input data.
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*
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* \return \c 0 if successful
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*
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* \warning SHA-1 is considered a weak message digest and its use
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* constitutes a security risk. We recommend considering
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* stronger message digests instead.
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*
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*/
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int mbedtls_sha1_update_ret( mbedtls_sha1_context *ctx,
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const unsigned char *input,
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size_t ilen );
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/**
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* \brief This function finishes the SHA-1 operation, and writes
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* the result to the output buffer.
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*
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* \param ctx The SHA-1 context.
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* \param output The SHA-1 checksum result.
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*
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* \return \c 0 if successful
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*
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* \warning SHA-1 is considered a weak message digest and its use
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* constitutes a security risk. We recommend considering
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* stronger message digests instead.
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*
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*/
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int mbedtls_sha1_finish_ret( mbedtls_sha1_context *ctx,
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unsigned char output[20] );
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/**
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* \brief SHA-1 process data block (internal use only)
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*
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* \param ctx SHA-1 context
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* \param data The data block being processed.
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*
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* \return \c 0 if successful
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*
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* \warning SHA-1 is considered a weak message digest and its use
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* constitutes a security risk. We recommend considering
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* stronger message digests instead.
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*
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*/
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int mbedtls_internal_sha1_process( mbedtls_sha1_context *ctx,
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const unsigned char data[64] );
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#ifdef __cplusplus
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}
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#endif
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#endif //MBEDTLS_SHA1_ALT
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#endif //__SHA1_ALT__
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