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md.h
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1 
8 /*
9  * Copyright The Mbed TLS Contributors
10  * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
11  *
12  * This file is provided under the Apache License 2.0, or the
13  * GNU General Public License v2.0 or later.
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17  *
18  * Licensed under the Apache License, Version 2.0 (the "License"); you may
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51 
52 #ifndef MBEDTLS_MD_H
53 #define MBEDTLS_MD_H
54 
55 #include <stddef.h>
56 
57 #if !defined(MBEDTLS_CONFIG_FILE)
58 #include "config.h"
59 #else
60 #include MBEDTLS_CONFIG_FILE
61 #endif
62 
63 #define MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE -0x5080
64 #define MBEDTLS_ERR_MD_BAD_INPUT_DATA -0x5100
65 #define MBEDTLS_ERR_MD_ALLOC_FAILED -0x5180
66 #define MBEDTLS_ERR_MD_FILE_IO_ERROR -0x5200
68 /* MBEDTLS_ERR_MD_HW_ACCEL_FAILED is deprecated and should not be used. */
69 #define MBEDTLS_ERR_MD_HW_ACCEL_FAILED -0x5280
71 #ifdef __cplusplus
72 extern "C" {
73 #endif
74 
83 typedef enum {
95 
96 #if defined(MBEDTLS_SHA512_C)
97 #define MBEDTLS_MD_MAX_SIZE 64 /* longest known is SHA512 */
98 #else
99 #define MBEDTLS_MD_MAX_SIZE 32 /* longest known is SHA256 or less */
100 #endif
101 
106 
110 typedef struct mbedtls_md_context_t
111 {
114 
116  void *md_ctx;
117 
119  void *hmac_ctx;
121 
133 const int *mbedtls_md_list( void );
134 
144 const mbedtls_md_info_t *mbedtls_md_info_from_string( const char *md_name );
145 
156 
166 
181 
182 #if ! defined(MBEDTLS_DEPRECATED_REMOVED)
183 #if defined(MBEDTLS_DEPRECATED_WARNING)
184 #define MBEDTLS_DEPRECATED __attribute__((deprecated))
185 #else
186 #define MBEDTLS_DEPRECATED
187 #endif
188 
207 #undef MBEDTLS_DEPRECATED
208 #endif /* MBEDTLS_DEPRECATED_REMOVED */
209 
229 int mbedtls_md_setup( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac );
230 
251  const mbedtls_md_context_t *src );
252 
262 unsigned char mbedtls_md_get_size( const mbedtls_md_info_t *md_info );
263 
274 
284 const char *mbedtls_md_get_name( const mbedtls_md_info_t *md_info );
285 
300 
317 int mbedtls_md_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen );
318 
337 int mbedtls_md_finish( mbedtls_md_context_t *ctx, unsigned char *output );
338 
357 int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen,
358  unsigned char *output );
359 
360 #if defined(MBEDTLS_FS_IO)
361 
378 int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path,
379  unsigned char *output );
380 #endif /* MBEDTLS_FS_IO */
381 
400 int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key,
401  size_t keylen );
402 
422 int mbedtls_md_hmac_update( mbedtls_md_context_t *ctx, const unsigned char *input,
423  size_t ilen );
424 
444 
461 
484 int mbedtls_md_hmac( const mbedtls_md_info_t *md_info, const unsigned char *key, size_t keylen,
485  const unsigned char *input, size_t ilen,
486  unsigned char *output );
487 
488 /* Internal use */
489 int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data );
490 
491 #ifdef __cplusplus
492 }
493 #endif
494 
495 #endif /* MBEDTLS_MD_H */
int mbedtls_md_init_ctx(mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info) MBEDTLS_DEPRECATED
This function selects the message digest algorithm to use, and allocates internal structures.
int mbedtls_md_hmac_reset(mbedtls_md_context_t *ctx)
This function prepares to authenticate a new message with the same key as the previous HMAC operation...
mbedtls_md_type_t mbedtls_md_get_type(const mbedtls_md_info_t *md_info)
This function extracts the message-digest type from the message-digest information structure.
static UCHAR ULONG UCHAR ULONG UCHAR * output
Definition: bcrypt.c:29
int mbedtls_md_starts(mbedtls_md_context_t *ctx)
This function starts a message-digest computation.
void * hmac_ctx
Definition: md.h:119
int mbedtls_md_hmac_update(mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen)
This function feeds an input buffer into an ongoing HMAC computation.
void mbedtls_md_free(mbedtls_md_context_t *ctx)
This function clears the internal structure of ctx and frees any embedded internal structure,...
void mbedtls_md_init(mbedtls_md_context_t *ctx)
This function initializes a message-digest context without binding it to a particular message-digest ...
int mbedtls_md_clone(mbedtls_md_context_t *dst, const mbedtls_md_context_t *src)
This function clones the state of an message-digest context.
void * md_ctx
Definition: md.h:116
int mbedtls_md_process(mbedtls_md_context_t *ctx, const unsigned char *data)
unsigned char mbedtls_md_get_size(const mbedtls_md_info_t *md_info)
This function extracts the message-digest size from the message-digest information structure.
int mbedtls_md_hmac_finish(mbedtls_md_context_t *ctx, unsigned char *output)
This function finishes the HMAC operation, and writes the result to the output buffer.
int mbedtls_md_setup(mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac)
This function selects the message digest algorithm to use, and allocates internal structures.
int mbedtls_md_hmac(const mbedtls_md_info_t *md_info, const unsigned char *key, size_t keylen, const unsigned char *input, size_t ilen, unsigned char *output)
This function calculates the full generic HMAC on the input buffer with the provided key.
int mbedtls_md(const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen, unsigned char *output)
This function calculates the message-digest of a buffer, with respect to a configurable message-diges...
int mbedtls_md_finish(mbedtls_md_context_t *ctx, unsigned char *output)
This function finishes the digest operation, and writes the result to the output buffer.
#define MBEDTLS_DEPRECATED
Definition: md.h:186
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: gl.h:1950
const char * mbedtls_md_get_name(const mbedtls_md_info_t *md_info)
This function extracts the message-digest name from the message-digest information structure.
struct mbedtls_md_context_t mbedtls_md_context_t
GLenum src
Definition: glext.h:6340
const int * mbedtls_md_list(void)
This function returns the list of digests supported by the generic digest module.
const mbedtls_md_info_t * mbedtls_md_info_from_type(mbedtls_md_type_t md_type)
This function returns the message-digest information associated with the given digest type.
GLenum GLenum GLenum input
Definition: glext.h:9031
GLenum GLenum dst
Definition: glext.h:6340
int mbedtls_md_hmac_starts(mbedtls_md_context_t *ctx, const unsigned char *key, size_t keylen)
This function sets the HMAC key and prepares to authenticate a new message.
mbedtls_md_type_t
Supported message digests.
Definition: md.h:83
const mbedtls_md_info_t * mbedtls_md_info_from_string(const char *md_name)
This function returns the message-digest information associated with the given digest name.
const mbedtls_md_info_t * md_info
Definition: md.h:113
int mbedtls_md_update(mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen)
This function feeds an input buffer into an ongoing message-digest computation.
Definition: path.c:41