/[mcrypt]/libmcrypt/lib/mcrypt.h.in
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Contents of /libmcrypt/lib/mcrypt.h.in

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Revision 1.8 - (show annotations)
Tue Dec 17 14:31:40 2002 UTC (18 years, 4 months ago) by nmav
Branch: MAIN
CVS Tags: libmcrypt_2_5_7, libmcrypt_2_5_6, libmcrypt_2_5_5, libmcrypt_2_5_4, libmcrypt_2_5_5rc1, HEAD
Changes since 1.7: +6 -1 lines
Added mcrypt_module_support_dynamic(), and some more fixes to disable dynamic loading.

1 /*
2 * Copyright (C) 1998,1999,2002 Nikos Mavroyanopoulos
3 *
4 * Encryption/decryption library. This library is free software;
5 * you can redistribute it and/or modify it under the terms of the
6 * GNU Library General Public License as published by the Free Software
7 * Foundation; either version 2 of the License, or (at your option) any
8 * later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
19 */
20
21
22 #define MCRYPT_API_VERSION 20021217
23
24 #define LIBMCRYPT_VERSION "@VERSION@"
25
26 #ifdef __cplusplus
27 extern "C" {
28 #endif
29 /* Definitions
30 */
31 #define MCRYPT_FAILED 0x0
32
33 struct CRYPT_STREAM;
34 typedef struct CRYPT_STREAM *MCRYPT;
35
36 /* generic - high level functions.
37 */
38 MCRYPT mcrypt_module_open(char *algorithm,
39 char *a_directory, char *mode,
40 char *m_directory);
41 int mcrypt_module_close(MCRYPT td);
42
43 /* returns 0 if the library has not been compiled with
44 * dynamic module support.
45 */
46 int mcrypt_module_support_dynamic(void);
47
48 /* returns thread descriptor */
49
50 int mcrypt_generic_init(const MCRYPT td, void *key, int lenofkey,
51 void *IV);
52 int mcrypt_generic_deinit(const MCRYPT td);
53 int mcrypt_generic_end(const MCRYPT td);
54 int mdecrypt_generic(MCRYPT td, void *plaintext, int len);
55 int mcrypt_generic(MCRYPT td, void *plaintext, int len);
56
57 /* extra functions */
58
59 int mcrypt_enc_set_state(MCRYPT td, void *st, int size);
60 int mcrypt_enc_get_state(MCRYPT td, void *st, int *size); /* only
61 * for block algorithms and certain modes like cbc
62 * ncfb etc.
63 */
64 int (mcrypt_enc_self_test) (MCRYPT);
65 int (mcrypt_enc_get_block_size) (MCRYPT);
66 int (mcrypt_enc_get_iv_size) (MCRYPT);
67 int (mcrypt_enc_get_key_size) (MCRYPT);
68
69 /* If this is a block algorithm returns 1
70 */
71 int (mcrypt_enc_is_block_algorithm) (MCRYPT);
72
73 /* If the mode operates in blocks returns 1
74 */
75 int (mcrypt_enc_is_block_mode) (MCRYPT);
76
77 /* If the mode is for block algorithms it returns 1
78 */
79 int (mcrypt_enc_is_block_algorithm_mode) (MCRYPT td);
80 int mcrypt_enc_mode_has_iv(MCRYPT td);
81
82 /* Return a const string containing the name of the algorithm/mode
83 */
84 char *(mcrypt_enc_get_algorithms_name) (MCRYPT td);
85 char *(mcrypt_enc_get_modes_name) (MCRYPT td);
86
87 int *mcrypt_enc_get_supported_key_sizes(MCRYPT td, int *len);
88
89
90 char **mcrypt_list_algorithms(char *libdir, int *size);
91 char **mcrypt_list_modes(char *libdir, int *size);
92
93 /* Frees the memory allocated by the mcrypt_list_xxx() functions.
94 */
95 void mcrypt_free_p(char **p, int size);
96 void mcrypt_free(void *ptr);
97
98 /* If mcrypt_xxx functions return an error code, and you supply this
99 * to this function, it will print a human readable message
100 */
101 void mcrypt_perror(int err);
102 const char* mcrypt_strerror(int err);
103
104 /* Self test for the specified algorithm
105 */
106 int mcrypt_module_self_test(char *algorithm, char *a_directory);
107
108 int mcrypt_module_is_block_algorithm(char *algorithm,
109 char *a_directory);
110 int mcrypt_module_is_block_algorithm_mode(char *mode,
111 char *m_directory);
112 int mcrypt_module_is_block_mode(char *mode, char *m_directory);
113
114 int mcrypt_module_get_algo_key_size(char *algorithm,
115 char *a_directory);
116 int mcrypt_module_get_algo_block_size(char *algorithm,
117 char *a_directory);
118
119 int *mcrypt_module_get_algo_supported_key_sizes(char *algorithm,
120 char *a_directory,
121 int *len);
122
123 /* Checks the version of the specified module
124 */
125 int mcrypt_module_algorithm_version(char *algorithm,
126 char *a_directory);
127 int mcrypt_module_mode_version(char *mode, char *a_directory);
128
129
130 /* for multithreaded applications:
131 */
132 int mcrypt_mutex_register ( void (*mutex_lock)(void) ,
133 void (*mutex_unlock)(void),
134 void (*set_error)(const char*),
135 const char* (*get_error)(void));
136
137 const char *
138 mcrypt_check_version( const char *);
139
140 /* These definitions exist in order to ease the access to
141 * mcrypt_module_init().
142 */
143
144 /* Algorithms */
145 #define MCRYPT_BLOWFISH "blowfish"
146 #define MCRYPT_DES "des"
147 #define MCRYPT_3DES "tripledes"
148 #define MCRYPT_3WAY "threeway"
149 #define MCRYPT_GOST "gost"
150 #define MCRYPT_SAFER_SK64 "safer-sk64"
151 #define MCRYPT_SAFER_SK128 "safer-sk128"
152 #define MCRYPT_CAST_128 "cast-128"
153 #define MCRYPT_XTEA "xtea"
154 #define MCRYPT_RC2 "rc2"
155 #define MCRYPT_TWOFISH "twofish"
156 #define MCRYPT_CAST_256 "cast-256"
157 #define MCRYPT_SAFERPLUS "saferplus"
158 #define MCRYPT_LOKI97 "loki97"
159 #define MCRYPT_SERPENT "serpent"
160 #define MCRYPT_RIJNDAEL_128 "rijndael-128"
161 #define MCRYPT_RIJNDAEL_192 "rijndael-192"
162 #define MCRYPT_RIJNDAEL_256 "rijndael-256"
163 #define MCRYPT_ENIGMA "enigma"
164 #define MCRYPT_ARCFOUR "arcfour"
165 #define MCRYPT_WAKE "wake"
166
167 /* Modes */
168 #define MCRYPT_CBC "cbc"
169 #define MCRYPT_ECB "ecb"
170 #define MCRYPT_CFB "cfb"
171 #define MCRYPT_OFB "ofb"
172 #define MCRYPT_nOFB "nofb"
173 #define MCRYPT_STREAM "stream"
174
175 #ifdef __cplusplus
176 }
177 #endif

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