mirror of git://git.gnupg.org/gnupg.git
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/* cipher.h
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* Copyright (c) 1997 by Werner Koch (dd9jn)
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*
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* ATTENTION: This code should not be exported from the United States
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* nor should it be used their without a license agreement with PKP.
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* The RSA alorithm is protected by U.S. Patent #4,405,829 which
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* expires on September 20, 2000!
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*
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* This file is part of G10.
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*
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* G10 is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* G10 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifndef G10_CIPHER_H
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#define G10_CIPHER_H
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#define DBG_CIPHER cipher_debug_mode
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#include "mpi.h"
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#include "../cipher/md5.h"
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#include "../cipher/rmd.h"
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#ifdef HAVE_RSA_CIPHER
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#include "../cipher/rsa.h"
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#endif
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#include "../cipher/idea.h"
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#include "../cipher/blowfish.h"
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#include "../cipher/gost.h"
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#include "../cipher/elgamal.h"
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#define CIPHER_ALGO_NONE 0
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#define CIPHER_ALGO_IDEA 1
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#define CIPHER_ALGO_BLOWFISH 42
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#define CIPHER_ALGO_GOST 43
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#define PUBKEY_ALGO_RSA 1
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#define PUBKEY_ALGO_ELGAMAL 42
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#define DIGEST_ALGO_MD5 1
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#define DIGEST_ALGO_RMD160 42
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#define DEFAULT_CIPHER_ALGO CIPHER_ALGO_BLOWFISH
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#define DEFAULT_PUBKEY_ALGO PUBKEY_ALGO_RSA
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#define DEFAULT_DIGEST_ALGO DIGEST_ALGO_RMD160
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typedef struct {
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int algo;
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int keylen;
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byte key[20]; /* this is the largest used keylen */
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} DEK;
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typedef struct {
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int algo; /* digest algo */
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union {
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MD5HANDLE md5;
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RMDHANDLE rmd;
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} u;
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} MD_HANDLE;
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int cipher_debug_mode;
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/*-- random.c --*/
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void randomize_buffer( byte *buffer, size_t length, int level );
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byte get_random_byte( int level );
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/*-- smallprime.c --*/
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extern ushort small_prime_numbers[];
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/*-- primegen.c --*/
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MPI generate_random_prime( unsigned nbits );
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/*-- seskey.c --*/
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void make_session_key( DEK *dek );
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MPI encode_session_key( DEK *dek, unsigned nbits );
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#endif /*G10_CIPHER_H*/
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