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The cryptographic API should not be related to whether or not there is alternative implementation. The API should be same for regular implementation, and for alternative implementation, so it is defined outside of the XXX_ALT precompilation check in the cryptographic API header
302 lines
8.9 KiB
C
302 lines
8.9 KiB
C
/**
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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: 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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*/
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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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#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
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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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/**
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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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#ifdef __cplusplus
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}
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#endif
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#endif /* mbedtls_md2.h */
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