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/*
* Copyright (C) 1998,1999,2002 Nikos Mavroyanopoulos
*
* Encryption/decryption library. This library is free software;
* you can redistribute it and/or modify it under the terms of the
* GNU Library General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any
* later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#define MCRYPT_API_VERSION 20021217
#define LIBMCRYPT_VERSION "2.5.8"
#ifdef __cplusplus
extern "C" {
#endif
/* Definitions
*/
#define MCRYPT_FAILED 0x0
struct CRYPT_STREAM;
typedef struct CRYPT_STREAM *MCRYPT;
/* generic - high level functions.
*/
MCRYPT mcrypt_module_open(char *algorithm,
char *a_directory, char *mode,
char *m_directory);
int mcrypt_module_close(MCRYPT td);
/* returns 0 if the library has not been compiled with
* dynamic module support.
*/
int mcrypt_module_support_dynamic(void);
/* returns thread descriptor */
int mcrypt_generic_init(const MCRYPT td, void *key, int lenofkey,
void *IV);
int mcrypt_generic_deinit(const MCRYPT td);
int mcrypt_generic_end(const MCRYPT td);
int mdecrypt_generic(MCRYPT td, void *plaintext, int len);
int mcrypt_generic(MCRYPT td, void *plaintext, int len);
/* extra functions */
int mcrypt_enc_set_state(MCRYPT td, void *st, int size);
int mcrypt_enc_get_state(MCRYPT td, void *st, int *size); /* only
* for block algorithms and certain modes like cbc
* ncfb etc.
*/
int (mcrypt_enc_self_test) (MCRYPT);
int (mcrypt_enc_get_block_size) (MCRYPT);
int (mcrypt_enc_get_iv_size) (MCRYPT);
int (mcrypt_enc_get_key_size) (MCRYPT);
/* If this is a block algorithm returns 1
*/
int (mcrypt_enc_is_block_algorithm) (MCRYPT);
/* If the mode operates in blocks returns 1
*/
int (mcrypt_enc_is_block_mode) (MCRYPT);
/* If the mode is for block algorithms it returns 1
*/
int (mcrypt_enc_is_block_algorithm_mode) (MCRYPT td);
int mcrypt_enc_mode_has_iv(MCRYPT td);
/* Return a const string containing the name of the algorithm/mode
*/
char *(mcrypt_enc_get_algorithms_name) (MCRYPT td);
char *(mcrypt_enc_get_modes_name) (MCRYPT td);
int *mcrypt_enc_get_supported_key_sizes(MCRYPT td, int *len);
char **mcrypt_list_algorithms(char *libdir, int *size);
char **mcrypt_list_modes(char *libdir, int *size);
/* Frees the memory allocated by the mcrypt_list_xxx() functions.
*/
void mcrypt_free_p(char **p, int size);
void mcrypt_free(void *ptr);
/* If mcrypt_xxx functions return an error code, and you supply this
* to this function, it will print a human readable message
*/
void mcrypt_perror(int err);
const char* mcrypt_strerror(int err);
/* Self test for the specified algorithm
*/
int mcrypt_module_self_test(char *algorithm, char *a_directory);
int mcrypt_module_is_block_algorithm(char *algorithm,
char *a_directory);
int mcrypt_module_is_block_algorithm_mode(char *mode,
char *m_directory);
int mcrypt_module_is_block_mode(char *mode, char *m_directory);
int mcrypt_module_get_algo_key_size(char *algorithm,
char *a_directory);
int mcrypt_module_get_algo_block_size(char *algorithm,
char *a_directory);
int *mcrypt_module_get_algo_supported_key_sizes(char *algorithm,
char *a_directory,
int *len);
/* Checks the version of the specified module
*/
int mcrypt_module_algorithm_version(char *algorithm,
char *a_directory);
int mcrypt_module_mode_version(char *mode, char *a_directory);
/* for multithreaded applications:
*/
int mcrypt_mutex_register ( void (*mutex_lock)(void) ,
void (*mutex_unlock)(void),
void (*set_error)(const char*),
const char* (*get_error)(void));
const char *
mcrypt_check_version( const char *);
/* These definitions exist in order to ease the access to
* mcrypt_module_init().
*/
/* Algorithms */
#define MCRYPT_BLOWFISH "blowfish"
#define MCRYPT_DES "des"
#define MCRYPT_3DES "tripledes"
#define MCRYPT_3WAY "threeway"
#define MCRYPT_GOST "gost"
#define MCRYPT_SAFER_SK64 "safer-sk64"
#define MCRYPT_SAFER_SK128 "safer-sk128"
#define MCRYPT_CAST_128 "cast-128"
#define MCRYPT_XTEA "xtea"
#define MCRYPT_RC2 "rc2"
#define MCRYPT_TWOFISH "twofish"
#define MCRYPT_CAST_256 "cast-256"
#define MCRYPT_SAFERPLUS "saferplus"
#define MCRYPT_LOKI97 "loki97"
#define MCRYPT_SERPENT "serpent"
#define MCRYPT_RIJNDAEL_128 "rijndael-128"
#define MCRYPT_RIJNDAEL_192 "rijndael-192"
#define MCRYPT_RIJNDAEL_256 "rijndael-256"
#define MCRYPT_ENIGMA "enigma"
#define MCRYPT_ARCFOUR "arcfour"
#define MCRYPT_WAKE "wake"
/* Modes */
#define MCRYPT_CBC "cbc"
#define MCRYPT_ECB "ecb"
#define MCRYPT_CFB "cfb"
#define MCRYPT_OFB "ofb"
#define MCRYPT_nOFB "nofb"
#define MCRYPT_STREAM "stream"
#ifdef __cplusplus
}
#endif
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