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/* cipher.h
* Copyright (C) 1998, 2002, 2003 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt 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 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt 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 Lesser 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifndef G10_CIPHER_H
#define G10_CIPHER_H
#define DBG_CIPHER _gcry_get_debug_flag( 1 )
#include "../cipher/random.h"
#define PUBKEY_FLAG_NO_BLINDING 0x00000001
#define is_RSA(a) ((a)==GCRY_PK_RSA || (a)==GCRY_PK_RSA_E \
|| (a)==GCRY_PK_RSA_S )
#define is_ELGAMAL(a) ((a)==GCRY_PK_ELG || (a)==GCRY_PK_ELG_E)
/*-- rmd160.c --*/
void _gcry_rmd160_hash_buffer( char *outbuf, const char *buffer, size_t length );
/*-- smallprime.c --*/
extern ushort small_prime_numbers[];
/*-- dsa.c --*/
void _gcry_register_pk_dsa_progress (void (*cb)(void *,const char *,
int,int,int),
void *cb_data );
/*-- elgamal.c --*/
void _gcry_register_pk_elg_progress (void (*cb)(void *,const char *,
int,int,int),
void *cb_data );
/*-- primegen.c --*/
void _gcry_register_primegen_progress (void (*cb)(void *,const char *,
int,int,int),
void *cb_data );
typedef struct gcry_pubkey_spec
{
const char *name;
int id;
int npkey;
int nskey;
int nenc;
int nsig;
int use;
int (*generate) (int algo, unsigned int nbits, unsigned long use_e,
GcryMPI *skey, GcryMPI **retfactors);
int (*check_secret_key) (int algo, GcryMPI *skey);
int (*encrypt) (int algo, GcryMPI *resarr, GcryMPI data, GcryMPI *pkey, int flags);
int (*decrypt) (int algo, GcryMPI *result, GcryMPI *data, GcryMPI *skey, int flags);
int (*sign) (int algo, GcryMPI *resarr, GcryMPI data, GcryMPI *skey);
int (*verify) (int algo, GcryMPI hash, GcryMPI *data, GcryMPI *pkey,
int (*cmp)(void *, GcryMPI), void *opaquev);
unsigned (*get_nbits) (int algo, GcryMPI *pkey);
} GcryPubkeySpec;
typedef struct gcry_digest_spec
{
const char *name;
int id;
unsigned char *asnoid;
int asnlen;
int mdlen;
void (*init) (void *c);
void (*write) (void *c, unsigned char *buf, size_t nbytes);
void (*final) (void *c);
unsigned char *(*read) (void *c);
size_t contextsize; /* allocate this amount of context */
} GcryDigestSpec;
typedef struct gcry_cipher_spec
{
const char *name;
int id;
size_t blocksize;
size_t keylen;
size_t contextsize;
int (*setkey) (void *c, const unsigned char *key, unsigned keylen);
void (*encrypt) (void *c, unsigned char *outbuf, const unsigned char *inbuf);
void (*decrypt) (void *c, unsigned char *outbuf, const unsigned char *inbuf);
void (*stencrypt) (void *c, unsigned char *outbuf, const unsigned char *inbuf,
unsigned int n);
void (*stdecrypt) (void *c, unsigned char *outbuf, const unsigned char *inbuf,
unsigned int n);
} GcryCipherSpec;
/* Declarations for the cipher specifications. */
extern GcryCipherSpec cipher_spec_blowfish;
extern GcryCipherSpec cipher_spec_des;
extern GcryCipherSpec cipher_spec_tripledes;
extern GcryCipherSpec cipher_spec_arcfour;
extern GcryCipherSpec cipher_spec_cast5;
extern GcryCipherSpec cipher_spec_aes;
extern GcryCipherSpec cipher_spec_aes192;
extern GcryCipherSpec cipher_spec_aes256;
extern GcryCipherSpec cipher_spec_twofish;
extern GcryCipherSpec cipher_spec_twofish128;
/* Declarations for the digest specifications. */
extern GcryDigestSpec digest_spec_crc32;
extern GcryDigestSpec digest_spec_crc32_rfc1510;
extern GcryDigestSpec digest_spec_crc24_rfc2440;
extern GcryDigestSpec digest_spec_md4;
extern GcryDigestSpec digest_spec_md5;
extern GcryDigestSpec digest_spec_rmd160;
extern GcryDigestSpec digest_spec_sha1;
extern GcryDigestSpec digest_spec_sha256;
extern GcryDigestSpec digest_spec_sha512;
extern GcryDigestSpec digest_spec_sha384;
extern GcryDigestSpec digest_spec_tiger;
/* Declarations for the pubkey cipher specifications. */
extern GcryPubkeySpec pubkey_spec_rsa;
extern GcryPubkeySpec pubkey_spec_elg;
extern GcryPubkeySpec pubkey_spec_dsa;
#endif /*G10_CIPHER_H*/
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