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md.h
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1 
8 /*
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10  * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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12  * This file is provided under the Apache License 2.0, or the
13  * GNU General Public License v2.0 or later.
14  *
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17  *
18  * Licensed under the Apache License, Version 2.0 (the "License"); you may
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51  * This file is part of Mbed TLS (https://tls.mbed.org)
52  */
53 
54 #ifndef MBEDTLS_MD_H
55 #define MBEDTLS_MD_H
56 
57 #include <stddef.h>
58 
59 #if !defined(MBEDTLS_CONFIG_FILE)
60 #include "config.h"
61 #else
62 #include MBEDTLS_CONFIG_FILE
63 #endif
64 
65 #define MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE -0x5080
66 #define MBEDTLS_ERR_MD_BAD_INPUT_DATA -0x5100
67 #define MBEDTLS_ERR_MD_ALLOC_FAILED -0x5180
68 #define MBEDTLS_ERR_MD_FILE_IO_ERROR -0x5200
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 {
113 
115  void *md_ctx;
116 
118  void *hmac_ctx;
120 
132 const int *mbedtls_md_list( void );
133 
143 const mbedtls_md_info_t *mbedtls_md_info_from_string( const char *md_name );
144 
155 
165 
180 
181 #if ! defined(MBEDTLS_DEPRECATED_REMOVED)
182 #if defined(MBEDTLS_DEPRECATED_WARNING)
183 #define MBEDTLS_DEPRECATED __attribute__((deprecated))
184 #else
185 #define MBEDTLS_DEPRECATED
186 #endif
187 
205 #undef MBEDTLS_DEPRECATED
206 #endif /* MBEDTLS_DEPRECATED_REMOVED */
207 
226 int mbedtls_md_setup( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac );
227 
248  const mbedtls_md_context_t *src );
249 
259 unsigned char mbedtls_md_get_size( const mbedtls_md_info_t *md_info );
260 
271 
281 const char *mbedtls_md_get_name( const mbedtls_md_info_t *md_info );
282 
296 
312 int mbedtls_md_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen );
313 
331 int mbedtls_md_finish( mbedtls_md_context_t *ctx, unsigned char *output );
332 
350 int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen,
351  unsigned char *output );
352 
353 #if defined(MBEDTLS_FS_IO)
354 
370 int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path,
371  unsigned char *output );
372 #endif /* MBEDTLS_FS_IO */
373 
391 int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key,
392  size_t keylen );
393 
412 int mbedtls_md_hmac_update( mbedtls_md_context_t *ctx, const unsigned char *input,
413  size_t ilen );
414 
432 int mbedtls_md_hmac_finish( mbedtls_md_context_t *ctx, unsigned char *output);
433 
449 
471 int mbedtls_md_hmac( const mbedtls_md_info_t *md_info, const unsigned char *key, size_t keylen,
472  const unsigned char *input, size_t ilen,
473  unsigned char *output );
474 
475 /* Internal use */
476 int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data );
477 
478 #ifdef __cplusplus
479 }
480 #endif
481 
482 #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:118
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:115
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:185
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.
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
Enumeration of 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:112
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