137 lines
3.2 KiB
C
137 lines
3.2 KiB
C
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/**
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* \file sha1.h
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*
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* \brief SHA-1 cryptographic hash function
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*
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* Copyright (C) 2006-2015, 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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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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#ifndef MBEDTLS_SHA1_H
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#define MBEDTLS_SHA1_H
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#include <stddef.h>
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#include <stdint.h>
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#if !defined(MBEDTLS_SHA1_ALT)
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// Regular implementation
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//
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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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uint32_t total[2]; /*!< number of bytes processed */
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uint32_t state[5]; /*!< intermediate digest state */
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unsigned char buffer[64]; /*!< data block being processed */
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}
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mbedtls_sha1_context;
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/**
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* \brief Initialize SHA-1 context
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*
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* \param ctx SHA-1 context to be initialized
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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 Clear SHA-1 context
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*
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* \param ctx SHA-1 context to be cleared
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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 Clone (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 be cloned
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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 SHA-1 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_sha1_starts( mbedtls_sha1_context *ctx );
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/**
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* \brief SHA-1 process buffer
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*
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* \param ctx SHA-1 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_sha1_update( mbedtls_sha1_context *ctx, const unsigned char *input, size_t ilen );
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/**
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* \brief SHA-1 final digest
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*
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* \param ctx SHA-1 context
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* \param output SHA-1 checksum result
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*/
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void mbedtls_sha1_finish( mbedtls_sha1_context *ctx, unsigned char output[20] );
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/* Internal use */
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void mbedtls_sha1_process( mbedtls_sha1_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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#else /* MBEDTLS_SHA1_ALT */
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#include "sha1_alt.h"
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#endif /* MBEDTLS_SHA1_ALT */
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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 = SHA-1( 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 SHA-1 checksum result
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*/
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void mbedtls_sha1( const unsigned char *input, size_t ilen, unsigned char output[20] );
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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_sha1_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_sha1.h */
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