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- Added generic message digest wrapper for integration with OpenVPN (donated by Fox-IT)
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Paul Bakker
parent
37ca75d6f2
commit
1737385e04
12 changed files with 2540 additions and 4 deletions
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@ -197,6 +197,14 @@
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*/
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#define POLARSSL_HAVEGE_C
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/*
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* Module: library/md.c
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* Caller:
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*
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* Uncomment to enable generic message digest wrappers.
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*/
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#define POLARSSL_MD_C
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/*
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* Module: library/md2.c
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* Caller: library/x509parse.c
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309
include/polarssl/md.h
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309
include/polarssl/md.h
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@ -0,0 +1,309 @@
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/**
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* \file md.h
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*
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* \brief Generic message digest wrapper
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*
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* \author Adriaan de Jong <dejong@fox-it.com>
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*
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* Copyright (C) 2006-2010, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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*
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* All rights reserved.
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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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#ifndef POLARSSL_MD_H
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#define POLARSSL_MD_H
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typedef enum {
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POLARSSL_MD_MD2=0,
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POLARSSL_MD_MD4,
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POLARSSL_MD_MD5,
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POLARSSL_MD_SHA1,
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POLARSSL_MD_SHA224,
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POLARSSL_MD_SHA256,
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POLARSSL_MD_SHA384,
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POLARSSL_MD_SHA512,
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} md_type_t;
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/**
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* Message digest information. Allows message digest functions to be called
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* in a generic way.
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*/
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typedef struct {
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/** Digest identifier */
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md_type_t type;
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/** Name of the message digest */
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const char * name;
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/** Output length of the digest function */
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int size;
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/** Digest initialisation function */
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void (*starts_func)( void *ctx );
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/** Digest update function */
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void (*update_func)( void *ctx, const unsigned char *input, int ilen );
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/** Digest finalisation function */
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void (*finish_func)( void *ctx, unsigned char *output );
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/** Generic digest function */
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void (*digest_func)( const unsigned char *input, int ilen,
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unsigned char *output );
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/** Generic file digest function */
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int (*file_func)( const char *path, unsigned char *output );
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/** HMAC Initialisation function */
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void (*hmac_starts_func)( void *ctx, const unsigned char *key, int keylen );
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/** HMAC update function */
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void (*hmac_update_func)( void *ctx, const unsigned char *input, int ilen );
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/** HMAC finalisation function */
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void (*hmac_finish_func)( void *ctx, unsigned char *output);
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/** HMAC context reset function */
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void (*hmac_reset_func)( void *ctx );
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/** Generic HMAC function */
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void (*hmac_func)( const unsigned char *key, int keylen,
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const unsigned char *input, int ilen,
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unsigned char *output );
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/** Allocate a new context */
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void * (*ctx_alloc_func)( void );
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/** Free the given context */
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void (*ctx_free_func)( void *ctx );
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} md_info_t;
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/**
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* Generic message digest context.
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*/
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typedef struct {
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/** Information about the associated message digest */
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const md_info_t *md_info;
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/** Digest-specific context */
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void *md_ctx;
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} md_context_t;
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#define MD_CONTEXT_T_INIT { \
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NULL, /* md_info */ \
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NULL, /* md_ctx */ \
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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 Returns the message digest information associated with the
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* given digest name.
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*
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* \param md_name Name of the digest to search for.
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*
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* \return The message digest information associated with md_name or
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* NULL if not found.
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*/
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const md_info_t *md_info_from_string( const char *md_name );
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/**
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* \brief Returns the message digest information associated with the
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* given digest type.
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*
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* \param md_type type of digest to search for.
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*
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* \return The message digest information associated with md_type or
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* NULL if not found.
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*/
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const md_info_t *md_info_from_type( md_type_t md_type );
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/**
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* \brief Returns the size of the message digest output.
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*
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* \param md_info message digest info
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*
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* \return size of the message digest output.
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*/
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static inline unsigned char md_get_size ( const md_info_t *md_info)
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{
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return md_info->size;
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}
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/**
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* \brief Returns the type of the message digest output.
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*
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* \param md_info message digest info
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*
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* \return type of the message digest output.
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*/
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static inline md_type_t md_get_type ( const md_info_t *md_info )
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{
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return md_info->type;
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}
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/**
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* \brief Returns the name of the message digest output.
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*
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* \param md_info message digest info
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*
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* \return name of the message digest output.
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*/
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static inline const char *md_get_name ( const md_info_t *md_info )
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{
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return md_info->name;
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}
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/**
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* \brief Generic message digest context setup.
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*
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* \param md_info message digest info
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* \param ctx generic message digest context. May not be NULL. The
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* digest-specific context (ctx->md_ctx) must be NULL. It will
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* be allocated, and must be freed using md_free() later.
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*
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* \returns 0 on success, 1 if parameter verification fails.
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*/
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int md_starts( const md_info_t *md_info, md_context_t *ctx );
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/**
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* \brief Generic message digest process buffer
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*
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* \param ctx Generic message digest context
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* \param input buffer holding the datal
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* \param ilen length of the input data
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*
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* \returns 0 on success, 1 if parameter verification fails.
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*/
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int md_update( md_context_t *ctx, const unsigned char *input, int ilen );
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/**
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* \brief Generic message digest final digest
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*
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* \param ctx Generic message digest context
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* \param output Generic message digest checksum result
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*
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* \returns 0 on success, 1 if parameter verification fails.
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*/
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int md_finish( md_context_t *ctx, unsigned char *output );
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/**
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* \brief Free the message-specific context of ctx. Freeing ctx itself
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* remains the responsibility of the caller.
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*
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* \param ctx Free the -specific context
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* \param output Generic message digest checksum result
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*
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* \returns 0 on success, 1 if parameter verification fails.
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*/
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int md_free_ctx( md_context_t *ctx );
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/**
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* \brief Output = message_digest( input buffer )
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*
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* \param md_info message digest info
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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 Generic message digest checksum result
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*
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* \returns 0 on success, 1 if parameter verification fails.
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*/
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int md( const md_info_t *md_info, const unsigned char *input, int ilen,
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unsigned char *output );
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/**
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* \brief Output = message_digest( file contents )
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*
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* \param md_info message digest info
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* \param path input file name
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* \param output generic message digest checksum result
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*
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* \return 0 if successful, 1 if fopen failed,
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* 2 if fread failed, 3 if md_info was NULL
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*/
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int md_file( const md_info_t *md_info, const char *path, unsigned char *output );
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/**
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* \brief Generic HMAC context setup
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*
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* \param md_info message digest info
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* \param ctx HMAC context to be initialized
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* \param key HMAC secret key
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* \param keylen length of the HMAC key
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*
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* \returns 0 on success, 1 if parameter verification fails.
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*/
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int md_hmac_starts( const md_info_t *md_info, md_context_t *ctx,
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const unsigned char *key, int keylen );
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/**
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* \brief Generic HMAC process buffer
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*
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* \param ctx HMAC 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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* \returns 0 on success, 1 if parameter verification fails.
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*/
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int md_hmac_update( md_context_t *ctx, const unsigned char *input, int ilen );
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/**
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* \brief Generic HMAC final digest
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*
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* \param ctx HMAC context
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* \param output Generic HMAC checksum result
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*
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* \returns 0 on success, 1 if parameter verification fails.
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*/
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int md_hmac_finish( md_context_t *ctx, unsigned char *output);
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/**
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* \brief Generic HMAC context reset
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*
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* \param ctx HMAC context to be reset
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*
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* \returns 0 on success, 1 if ctx is NULL.
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*/
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int md_hmac_reset( md_context_t *ctx );
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/**
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* \brief Output = Generic_HMAC( hmac key, input buffer )
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*
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* \param md_info message digest info
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* \param key HMAC secret key
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* \param keylen length of the HMAC key
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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 Generic HMAC-result
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*
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* \returns 0 on success, 1 if parameter verification fails.
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*/
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int md_hmac( const md_info_t *md_info, const unsigned char *key, int keylen,
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const unsigned char *input, int ilen,
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unsigned char *output );
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#ifdef __cplusplus
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}
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#endif
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#endif /* POLARSSL_MD_H */
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65
include/polarssl/md_wrap.h
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65
include/polarssl/md_wrap.h
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@ -0,0 +1,65 @@
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/**
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* \file md_wrap.h
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*
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* \brief Message digest wrappers.
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*
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* \author Adriaan de Jong <dejong@fox-it.com>
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*
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* Copyright (C) 2006-2010, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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*
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* All rights reserved.
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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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#include "polarssl/config.h"
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#include "polarssl/md.h"
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#ifndef POLARSSL_MD_WRAP_H
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#define POLARSSL_MD_WRAP_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(POLARSSL_MD2_C)
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extern const md_info_t md2_info;
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#endif
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#if defined(POLARSSL_MD4_C)
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extern const md_info_t md4_info;
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#endif
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#if defined(POLARSSL_MD5_C)
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extern const md_info_t md5_info;
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#endif
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#if defined(POLARSSL_SHA1_C)
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extern const md_info_t sha1_info;
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#endif
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#if defined(POLARSSL_SHA2_C)
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extern const md_info_t sha224_info;
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extern const md_info_t sha256_info;
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#endif
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#if defined(POLARSSL_SHA4_C)
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extern const md_info_t sha384_info;
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extern const md_info_t sha512_info;
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* POLARSSL_MD_WRAP_H */
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