File: libhmac_md5_context.h

package info (click to toggle)
libfshfs 20240501-1
  • links: PTS, VCS
  • area: main
  • in suites: sid, trixie
  • size: 16,784 kB
  • sloc: ansic: 275,772; sh: 6,375; makefile: 1,637; python: 425; cpp: 391; sed: 16
file content (130 lines) | stat: -rw-r--r-- 3,341 bytes parent folder | download | duplicates (11)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
/*
 * MD5 context functions
 *
 * Copyright (C) 2011-2024, Joachim Metz <joachim.metz@gmail.com>
 *
 * Refer to AUTHORS for acknowledgements.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#if !defined( _LIBHMAC_MD5_CONTEXT_H )
#define _LIBHMAC_MD5_CONTEXT_H

#include <common.h>
#include <types.h>

#if defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_MD5_H )
#include <openssl/md5.h>

#elif defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_EVP_H )
#include <openssl/evp.h>
#endif

#include "libhmac_extern.h"
#include "libhmac_libcerror.h"
#include "libhmac_types.h"

#if defined( __cplusplus )
extern "C" {
#endif

#if defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_MD5_H ) && defined( MD5_DIGEST_LENGTH )
#define LIBHMAC_HAVE_MD5_SUPPORT

#elif defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_EVP_H ) && defined( HAVE_EVP_MD5 )
#define LIBHMAC_HAVE_MD5_SUPPORT

#endif

#define LIBHMAC_MD5_BLOCK_SIZE	64

typedef struct libhmac_internal_md5_context libhmac_internal_md5_context_t;

struct libhmac_internal_md5_context
{
#if defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_MD5_H ) && defined( MD5_DIGEST_LENGTH )
	/* The MD5 context
	 */
	MD5_CTX md5_context;

#elif defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_EVP_H ) && defined( HAVE_EVP_MD5 )
	/* The EVP message digest context
	 */
#if defined( HAVE_EVP_MD_CTX_INIT )
	EVP_MD_CTX internal_evp_md_context;
#endif

	EVP_MD_CTX *evp_md_context;

#else
	/* The number of bytes hashed
	 */
	uint64_t hash_count;

	/* The hash values
	 */
	uint32_t hash_values[ 4 ];

	/* The block offset
	 */
	size_t block_offset;

	/* The (data) block
	 */
	uint8_t block[ 2 * LIBHMAC_MD5_BLOCK_SIZE ];

#endif /* defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_MD5_H ) && defined( MD5_DIGEST_LENGTH ) */
};

#if !defined( LIBHMAC_HAVE_MD5_SUPPORT )

ssize_t libhmac_context_md5_transform(
         libhmac_internal_md5_context_t *internal_context,
         const uint8_t *buffer,
         size_t size,
         libcerror_error_t **error );

#endif /* !defined( LIBHMAC_HAVE_MD5_SUPPORT ) */

LIBHMAC_EXTERN \
int libhmac_md5_context_initialize(
     libhmac_md5_context_t **context,
     libcerror_error_t **error );

LIBHMAC_EXTERN \
int libhmac_md5_context_free(
     libhmac_md5_context_t **context,
     libcerror_error_t **error );

LIBHMAC_EXTERN \
int libhmac_md5_context_update(
     libhmac_md5_context_t *context,
     const uint8_t *buffer,
     size_t size,
     libcerror_error_t **error );

LIBHMAC_EXTERN \
int libhmac_md5_context_finalize(
     libhmac_md5_context_t *context,
     uint8_t *hash,
     size_t hash_size,
     libcerror_error_t **error );

#if defined( __cplusplus )
}
#endif

#endif /* !defined( _LIBHMAC_MD5_CONTEXT_H ) */