/** * \file md4.h * * \brief MD4 message digest algorithm (hash function) * * \warning MD4 is considered a weak message digest and its use constitutes a * security risk. We recommend considering stronger message digests * instead. */ /* * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * This file is part of mbed TLS (https://tls.mbed.org) * */ #ifndef MBEDTLS_MD4_H #define MBEDTLS_MD4_H #if !defined(MBEDTLS_CONFIG_FILE) #include "config.h" #else #include MBEDTLS_CONFIG_FILE #endif #include #include #define MBEDTLS_ERR_MD4_HW_ACCEL_FAILED -0x002D /**< MD4 hardware accelerator failed */ #if !defined(MBEDTLS_MD4_ALT) // Regular implementation // #ifdef __cplusplus extern "C" { #endif /** * \brief MD4 context structure * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ typedef struct { uint32_t total[2]; /*!< number of bytes processed */ uint32_t state[4]; /*!< intermediate digest state */ unsigned char buffer[64]; /*!< data block being processed */ } mbedtls_md4_context; /** * \brief Initialize MD4 context * * \param ctx MD4 context to be initialized * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ void mbedtls_md4_init( mbedtls_md4_context *ctx ); /** * \brief Clear MD4 context * * \param ctx MD4 context to be cleared * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ void mbedtls_md4_free( mbedtls_md4_context *ctx ); /** * \brief Clone (the state of) an MD4 context * * \param dst The destination context * \param src The context to be cloned * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ void mbedtls_md4_clone( mbedtls_md4_context *dst, const mbedtls_md4_context *src ); /** * \brief MD4 context setup * * \param ctx context to be initialized * * \return 0 if successful * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. */ int mbedtls_md4_starts_ret( mbedtls_md4_context *ctx ); /** * \brief MD4 process buffer * * \param ctx MD4 context * \param input buffer holding the data * \param ilen length of the input data * * \return 0 if successful * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ int mbedtls_md4_update_ret( mbedtls_md4_context *ctx, const unsigned char *input, size_t ilen ); /** * \brief MD4 final digest * * \param ctx MD4 context * \param output MD4 checksum result * * \return 0 if successful * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ int mbedtls_md4_finish_ret( mbedtls_md4_context *ctx, unsigned char output[16] ); /** * \brief MD4 process data block (internal use only) * * \param ctx MD4 context * \param data buffer holding one block of data * * \return 0 if successful * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ int mbedtls_internal_md4_process( mbedtls_md4_context *ctx, const unsigned char data[64] ); #if !defined(MBEDTLS_DEPRECATED_REMOVED) #if defined(MBEDTLS_DEPRECATED_WARNING) #define MBEDTLS_DEPRECATED __attribute__((deprecated)) #else #define MBEDTLS_DEPRECATED #endif /** * \brief MD4 context setup * * \deprecated Superseded by mbedtls_md4_starts_ret() in 2.7.0 * * \param ctx context to be initialized * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ MBEDTLS_DEPRECATED void mbedtls_md4_starts( mbedtls_md4_context *ctx ); /** * \brief MD4 process buffer * * \deprecated Superseded by mbedtls_md4_update_ret() in 2.7.0 * * \param ctx MD4 context * \param input buffer holding the data * \param ilen length of the input data * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ MBEDTLS_DEPRECATED void mbedtls_md4_update( mbedtls_md4_context *ctx, const unsigned char *input, size_t ilen ); /** * \brief MD4 final digest * * \deprecated Superseded by mbedtls_md4_finish_ret() in 2.7.0 * * \param ctx MD4 context * \param output MD4 checksum result * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ MBEDTLS_DEPRECATED void mbedtls_md4_finish( mbedtls_md4_context *ctx, unsigned char output[16] ); /** * \brief MD4 process data block (internal use only) * * \deprecated Superseded by mbedtls_internal_md4_process() in 2.7.0 * * \param ctx MD4 context * \param data buffer holding one block of data * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ MBEDTLS_DEPRECATED void mbedtls_md4_process( mbedtls_md4_context *ctx, const unsigned char data[64] ); #undef MBEDTLS_DEPRECATED #endif /* !MBEDTLS_DEPRECATED_REMOVED */ #ifdef __cplusplus } #endif #else /* MBEDTLS_MD4_ALT */ #include "md4_alt.h" #endif /* MBEDTLS_MD4_ALT */ #ifdef __cplusplus extern "C" { #endif /** * \brief Output = MD4( input buffer ) * * \param input buffer holding the data * \param ilen length of the input data * \param output MD4 checksum result * * \return 0 if successful * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ int mbedtls_md4_ret( const unsigned char *input, size_t ilen, unsigned char output[16] ); #if !defined(MBEDTLS_DEPRECATED_REMOVED) #if defined(MBEDTLS_DEPRECATED_WARNING) #define MBEDTLS_DEPRECATED __attribute__((deprecated)) #else #define MBEDTLS_DEPRECATED #endif /** * \brief Output = MD4( input buffer ) * * \deprecated Superseded by mbedtls_md4_ret() in 2.7.0 * * \param input buffer holding the data * \param ilen length of the input data * \param output MD4 checksum result * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ MBEDTLS_DEPRECATED void mbedtls_md4( const unsigned char *input, size_t ilen, unsigned char output[16] ); #undef MBEDTLS_DEPRECATED #endif /* !MBEDTLS_DEPRECATED_REMOVED */ /** * \brief Checkup routine * * \return 0 if successful, or 1 if the test failed * * \warning MD4 is considered a weak message digest and its use * constitutes a security risk. We recommend considering * stronger message digests instead. * */ int mbedtls_md4_self_test( int verbose ); #ifdef __cplusplus } #endif #endif /* mbedtls_md4.h */