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307 lines
9.3 KiB
C
307 lines
9.3 KiB
C
/**
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* \file md5.h
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*
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* \brief MD5 message digest algorithm (hash function)
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*
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* \warning MD5 is considered a weak message digest and its use constitutes a
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* 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) 2006-2015, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: GPL-2.0
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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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_MD5_H
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#define MBEDTLS_MD5_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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#define MBEDTLS_ERR_MD5_HW_ACCEL_FAILED -0x002F /**< MD5 hardware accelerator failed */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if !defined(MBEDTLS_MD5_ALT)
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// Regular implementation
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//
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/**
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* \brief MD5 context structure
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*
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* \warning MD5 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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typedef struct mbedtls_md5_context {
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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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}
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mbedtls_md5_context;
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#else /* MBEDTLS_MD5_ALT */
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#include "md5_alt.h"
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#endif /* MBEDTLS_MD5_ALT */
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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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* \warning MD5 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_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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* \warning MD5 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_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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* \warning MD5 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_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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* \return 0 if successful
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*
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* \warning MD5 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_md5_starts_ret(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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* \return 0 if successful
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*
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* \warning MD5 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_md5_update_ret(mbedtls_md5_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 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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* \return 0 if successful
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*
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* \warning MD5 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_md5_finish_ret(mbedtls_md5_context *ctx,
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unsigned char output[16]);
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/**
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* \brief MD5 process data block (internal use only)
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*
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* \param ctx MD5 context
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* \param data buffer holding one block of data
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*
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* \return 0 if successful
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*
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* \warning MD5 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_md5_process(mbedtls_md5_context *ctx,
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const unsigned char data[64]);
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#if !defined(MBEDTLS_DEPRECATED_REMOVED)
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#if defined(MBEDTLS_DEPRECATED_WARNING)
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#define MBEDTLS_DEPRECATED __attribute__((deprecated))
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#else
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#define MBEDTLS_DEPRECATED
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#endif
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/**
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* \brief MD5 context setup
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*
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* \deprecated Superseded by mbedtls_md5_starts_ret() in 2.7.0
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*
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* \param ctx context to be initialized
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*
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* \warning MD5 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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MBEDTLS_DEPRECATED 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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* \deprecated Superseded by mbedtls_md5_update_ret() in 2.7.0
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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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* \warning MD5 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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MBEDTLS_DEPRECATED void mbedtls_md5_update(mbedtls_md5_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 MD5 final digest
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*
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* \deprecated Superseded by mbedtls_md5_finish_ret() in 2.7.0
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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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* \warning MD5 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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MBEDTLS_DEPRECATED void mbedtls_md5_finish(mbedtls_md5_context *ctx,
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unsigned char output[16]);
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/**
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* \brief MD5 process data block (internal use only)
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*
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* \deprecated Superseded by mbedtls_internal_md5_process() in 2.7.0
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*
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* \param ctx MD5 context
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* \param data buffer holding one block of data
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*
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* \warning MD5 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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MBEDTLS_DEPRECATED void mbedtls_md5_process(mbedtls_md5_context *ctx,
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const unsigned char data[64]);
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#undef MBEDTLS_DEPRECATED
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#endif /* !MBEDTLS_DEPRECATED_REMOVED */
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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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* \return 0 if successful
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*
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* \warning MD5 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_md5_ret(const unsigned char *input,
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size_t ilen,
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unsigned char output[16]);
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#if !defined(MBEDTLS_DEPRECATED_REMOVED)
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#if defined(MBEDTLS_DEPRECATED_WARNING)
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#define MBEDTLS_DEPRECATED __attribute__((deprecated))
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#else
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#define MBEDTLS_DEPRECATED
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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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* \deprecated Superseded by mbedtls_md5_ret() in 2.7.0
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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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* \warning MD5 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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MBEDTLS_DEPRECATED void mbedtls_md5(const unsigned char *input,
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size_t ilen,
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unsigned char output[16]);
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#undef MBEDTLS_DEPRECATED
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#endif /* !MBEDTLS_DEPRECATED_REMOVED */
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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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* \warning MD5 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_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.h */
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