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/* g10lib.h - GNU digital encryption libray interface
* Copyright (C) 1998 Free Software Foundation, Inc.
*
* This file is part of GNUPG.
*
* GNUPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GNUPG 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifndef _g10lib_G10LIB_H
#define _g10lib_G10LIB_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _g10lib_INTERNAL
struct g10mpi_struct { int hidden_stuff; };
typedef struct g10mpi_struct *MPI;
#endif
int g10c_debug_mode;
int g10_opt_verbose;
/********************************
******* math functions *******
********************************/
MPI g10m_new( unsigned nbits );
MPI g10m_new_secure( unsigned nbits );
void g10m_release( MPI a );
void g10m_resize( MPI a, unsigned nbits );
MPI g10m_copy( MPI a );
void g10m_swap( MPI a, MPI b);
void g10m_set( MPI w, MPI u);
void g10m_set_ui( MPI w, unsigned long u);
void g10m_set_bytes( MPI a, unsigned nbits, unsigned char (*fnc)(int), int opaque );
int g10m_cmp( MPI u, MPI v );
int g10m_cmp_ui( MPI u, unsigned long v );
void g10m_add(MPI w, MPI u, MPI v);
void g10m_add_ui(MPI w, MPI u, unsigned long v );
void g10m_sub( MPI w, MPI u, MPI v);
void g10m_sub_ui(MPI w, MPI u, unsigned long v );
void g10m_mul_ui(MPI w, MPI u, unsigned long v );
void g10m_mul_2exp( MPI w, MPI u, unsigned long cnt);
void g10m_mul( MPI w, MPI u, MPI v);
void g10m_mulm( MPI w, MPI u, MPI v, MPI m);
void g10m_fdiv_q( MPI quot, MPI dividend, MPI divisor );
void g10m_powm( MPI res, MPI base, MPI exp, MPI mod);
int g10m_gcd( MPI g, MPI a, MPI b );
int g10m_invm( MPI x, MPI u, MPI v );
unsigned g10m_get_nbits( MPI a );
unsigned g10m_get_size( MPI a );
void g10m_set_buffer( MPI a, const char *buffer, unsigned nbytes, int sign );
/********************************************
******* symmetric cipher functions *******
********************************************/
/*********************************************
******* asymmetric cipher functions *******
*********************************************/
/*********************************************
******* cryptograhic hash functions *******
*********************************************/
/*****************************************
******* miscellaneous functions *******
*****************************************/
const char *g10m_revision_string(int mode);
const char *g10c_revision_string(int mode);
const char *g10u_revision_string(int mode);
MPI g10c_generate_secret_prime( unsigned nbits );
char *g10c_get_random_bits( unsigned nbits, int level, int secure );
void *g10_malloc( size_t n );
void *g10_calloc( size_t n );
void *g10_malloc_secure( size_t n );
void *g10_calloc_secure( size_t n );
void *g10_realloc( void *a, size_t n );
void g10_free( void *p );
char *g10_strdup( const char * a);
void g10_log_bug( const char *fmt, ... );
void g10_log_bug0( const char *, int );
void g10_log_fatal( const char *fmt, ... );
void g10_log_error( const char *fmt, ... );
void g10_log_info( const char *fmt, ... );
void g10_log_debug( const char *fmt, ... );
void g10_log_hexdump( const char *text, char *buf, size_t len );
void g10_log_mpidump( const char *text, MPI a );
/***************************
******* constants *******
**************************/
#define CIPHER_ALGO_NONE 0
#define CIPHER_ALGO_IDEA 1
#define CIPHER_ALGO_3DES 2
#define CIPHER_ALGO_CAST5 3
#define CIPHER_ALGO_BLOWFISH 4 /* blowfish 128 bit key */
#define CIPHER_ALGO_SAFER_SK128 5
#define CIPHER_ALGO_DES_SK 6
#define CIPHER_ALGO_BLOWFISH160 42 /* blowfish 160 bit key (not in OpenPGP)*/
#define CIPHER_ALGO_DUMMY 110 /* no encryption at all */
#define PUBKEY_ALGO_RSA 1
#define PUBKEY_ALGO_RSA_E 2 /* RSA encrypt only */
#define PUBKEY_ALGO_RSA_S 3 /* RSA sign only */
#define PUBKEY_ALGO_ELGAMAL_E 16 /* encrypt only ElGamal (but not vor v3)*/
#define PUBKEY_ALGO_DSA 17
#define PUBKEY_ALGO_ELGAMAL 20 /* sign and encrypt elgamal */
#define DIGEST_ALGO_MD5 1
#define DIGEST_ALGO_SHA1 2
#define DIGEST_ALGO_RMD160 3
#define DIGEST_ALGO_TIGER 6
#define is_RSA(a) ((a)==PUBKEY_ALGO_RSA || (a)==PUBKEY_ALGO_RSA_E \
|| (a)==PUBKEY_ALGO_RSA_S )
#define is_ELGAMAL(a) ((a)==PUBKEY_ALGO_ELGAMAL || (a)==PUBKEY_ALGO_ELGAMAL_E)
#define G10ERR_GENERAL 1
#define G10ERR_PUBKEY_ALGO 4
#define G10ERR_DIGEST_ALGO 5
#define G10ERR_BAD_PUBKEY 6
#define G10ERR_BAD_SECKEY 7
#define G10ERR_BAD_SIGN 8
#define G10ERR_CIPHER_ALGO 12
#define G10ERR_WRONG_SECKEY 18
#define G10ERR_UNSUPPORTED 19
#define G10ERR_NI_PUBKEY 27
#define G10ERR_NI_CIPHER 28
#define G10ERR_BAD_MPI 30
#define G10ERR_WR_PUBKEY_ALGO 41
/***********************************
******* some handy macros *******
***********************************/
#ifndef BUG
#define BUG() g10_log_bug0( __FILE__ , __LINE__ )
#endif
#ifndef STR
#define STR(v) #v
#define STR2(v) STR(v)
#endif
#ifndef DIM
#define DIM(v) (sizeof(v)/sizeof((v)[0]))
#define DIMof(type,member) DIM(((type *)0)->member)
#endif
#define DBG_CIPHER g10c_debug_mode
#define OPT_VERBOSE g10_opt_verbose
#ifdef __cplusplus
}
#endif
#endif /* _g10lib_G10LIB_H */
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