forked from KolibriOS/kolibrios
309 lines
9.2 KiB
C
309 lines
9.2 KiB
C
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/**
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* \file md2.h
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*
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* \brief MD2 message digest algorithm (hash function)
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*
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* \warning MD2 is considered a weak message digest and its use constitutes a
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* security risk. We recommend considering stronger message digests
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* 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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*/
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#ifndef MBEDTLS_MD2_H
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#define MBEDTLS_MD2_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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/* MBEDTLS_ERR_MD2_HW_ACCEL_FAILED is deprecated and should not be used. */
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#define MBEDTLS_ERR_MD2_HW_ACCEL_FAILED -0x002B /**< MD2 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_MD2_ALT)
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// Regular implementation
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//
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/**
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* \brief MD2 context structure
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*
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* \warning MD2 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_md2_context
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{
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unsigned char cksum[16]; /*!< checksum of the data block */
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unsigned char state[48]; /*!< intermediate digest state */
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unsigned char buffer[16]; /*!< data block being processed */
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size_t left; /*!< amount of data in buffer */
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}
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mbedtls_md2_context;
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#else /* MBEDTLS_MD2_ALT */
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#include "md2_alt.h"
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#endif /* MBEDTLS_MD2_ALT */
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/**
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* \brief Initialize MD2 context
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*
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* \param ctx MD2 context to be initialized
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*
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* \warning MD2 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_md2_init( mbedtls_md2_context *ctx );
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/**
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* \brief Clear MD2 context
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*
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* \param ctx MD2 context to be cleared
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*
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* \warning MD2 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_md2_free( mbedtls_md2_context *ctx );
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/**
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* \brief Clone (the state of) an MD2 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 MD2 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_md2_clone( mbedtls_md2_context *dst,
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const mbedtls_md2_context *src );
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/**
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* \brief MD2 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 MD2 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_md2_starts_ret( mbedtls_md2_context *ctx );
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/**
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* \brief MD2 process buffer
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*
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* \param ctx MD2 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 MD2 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_md2_update_ret( mbedtls_md2_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 MD2 final digest
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*
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* \param ctx MD2 context
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* \param output MD2 checksum result
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*
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* \return 0 if successful
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*
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* \warning MD2 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_md2_finish_ret( mbedtls_md2_context *ctx,
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unsigned char output[16] );
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/**
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* \brief MD2 process data block (internal use only)
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*
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* \param ctx MD2 context
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*
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* \return 0 if successful
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*
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* \warning MD2 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_md2_process( mbedtls_md2_context *ctx );
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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 MD2 context setup
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*
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* \deprecated Superseded by mbedtls_md2_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 MD2 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_md2_starts( mbedtls_md2_context *ctx );
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/**
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* \brief MD2 process buffer
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*
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* \deprecated Superseded by mbedtls_md2_update_ret() in 2.7.0
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*
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* \param ctx MD2 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 MD2 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_md2_update( mbedtls_md2_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 MD2 final digest
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*
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* \deprecated Superseded by mbedtls_md2_finish_ret() in 2.7.0
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*
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* \param ctx MD2 context
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* \param output MD2 checksum result
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*
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* \warning MD2 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_md2_finish( mbedtls_md2_context *ctx,
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unsigned char output[16] );
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/**
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* \brief MD2 process data block (internal use only)
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*
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* \deprecated Superseded by mbedtls_internal_md2_process() in 2.7.0
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*
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* \param ctx MD2 context
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*
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* \warning MD2 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_md2_process( mbedtls_md2_context *ctx );
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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 = MD2( 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 MD2 checksum result
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*
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* \warning MD2 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_md2_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 = MD2( input buffer )
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*
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* \deprecated Superseded by mbedtls_md2_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 MD2 checksum result
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*
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* \warning MD2 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_md2( 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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#if defined(MBEDTLS_SELF_TEST)
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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 MD2 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_md2_self_test( int verbose );
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#endif /* MBEDTLS_SELF_TEST */
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#ifdef __cplusplus
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}
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#endif
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#endif /* mbedtls_md2.h */
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