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gnupg/include/cipher.h
Werner Koch 327af90594 Require libgcrypt 1.5
Without Libgcrypt 1.5 is was not possible to use ECC keys.  ECC is
major new feature and thus it does not make sense to allow building
with an older Libgcrypt without supporting ECC.

Also fixed a few missing prototypes.
2011-03-08 12:23:59 +01:00

103 lines
3.9 KiB
C

/* cipher.h - Definitions for OpenPGP
* Copyright (C) 1998, 1999, 2000, 2001, 2006,
* 2007, 2010 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef G10_CIPHER_H
#define G10_CIPHER_H
#include <gcrypt.h>
/* Constants for OpenPGP. */
#define CIPHER_ALGO_NONE /* 0 */ GCRY_CIPHER_NONE
#define CIPHER_ALGO_IDEA /* 1 */ GCRY_CIPHER_IDEA
#define CIPHER_ALGO_3DES /* 2 */ GCRY_CIPHER_3DES
#define CIPHER_ALGO_CAST5 /* 3 */ GCRY_CIPHER_CAST5
#define CIPHER_ALGO_BLOWFISH /* 4 */ GCRY_CIPHER_BLOWFISH /* 128 bit */
/* 5 & 6 are reserved */
#define CIPHER_ALGO_AES /* 7 */ GCRY_CIPHER_AES
#define CIPHER_ALGO_AES192 /* 8 */ GCRY_CIPHER_AES192
#define CIPHER_ALGO_AES256 /* 9 */ GCRY_CIPHER_AES256
#define CIPHER_ALGO_RIJNDAEL CIPHER_ALGO_AES
#define CIPHER_ALGO_RIJNDAEL192 CIPHER_ALGO_AES192
#define CIPHER_ALGO_RIJNDAEL256 CIPHER_ALGO_AES256
#define CIPHER_ALGO_TWOFISH /* 10 */ GCRY_CIPHER_TWOFISH /* 256 bit */
/* Note: Camellia ids don't match those used by libgcrypt. */
#define CIPHER_ALGO_CAMELLIA128 11
#define CIPHER_ALGO_CAMELLIA192 12
#define CIPHER_ALGO_CAMELLIA256 13
#define CIPHER_ALGO_DUMMY 110 /* No encryption at all. */
#define PUBKEY_ALGO_RSA /* 1 */ GCRY_PK_RSA
#define PUBKEY_ALGO_RSA_E /* 2 */ GCRY_PK_RSA_E /* RSA encrypt only. */
#define PUBKEY_ALGO_RSA_S /* 3 */ GCRY_PK_RSA_S /* RSA sign only. */
#define PUBKEY_ALGO_ELGAMAL_E /* 16 */ GCRY_PK_ELG_E /* Elgamal encr only */
#define PUBKEY_ALGO_DSA /* 17 */ GCRY_PK_DSA
#define PUBKEY_ALGO_ECDH 18
#define PUBKEY_ALGO_ECDSA 19
#define PUBKEY_ALGO_ELGAMAL /* 20 */ GCRY_PK_ELG /* Elgamal encr+sign */
#define PUBKEY_USAGE_SIG GCRY_PK_USAGE_SIGN /* Good for signatures. */
#define PUBKEY_USAGE_ENC GCRY_PK_USAGE_ENCR /* Good for encryption. */
#define PUBKEY_USAGE_CERT GCRY_PK_USAGE_CERT /* Also good to certify keys. */
#define PUBKEY_USAGE_AUTH GCRY_PK_USAGE_AUTH /* Good for authentication. */
#define PUBKEY_USAGE_UNKNOWN GCRY_PK_USAGE_UNKN /* Unknown usage flag. */
#define DIGEST_ALGO_MD5 /* 1 */ GCRY_MD_MD5
#define DIGEST_ALGO_SHA1 /* 2 */ GCRY_MD_SHA1
#define DIGEST_ALGO_RMD160 /* 3 */ GCRY_MD_RMD160
/* 4, 5, 6, and 7 are reserved */
#define DIGEST_ALGO_SHA256 /* 8 */ GCRY_MD_SHA256
#define DIGEST_ALGO_SHA384 /* 9 */ GCRY_MD_SHA384
#define DIGEST_ALGO_SHA512 /* 10 */ GCRY_MD_SHA512
/* SHA224 is only available in libgcrypt 1.4.0; thus we
can't use the GCRY macro here. */
#define DIGEST_ALGO_SHA224 /* 11 */ 11 /* GCRY_MD_SHA224 */
#define COMPRESS_ALGO_NONE 0
#define COMPRESS_ALGO_ZIP 1
#define COMPRESS_ALGO_ZLIB 2
#define COMPRESS_ALGO_BZIP2 3
#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_E)
#define is_DSA(a) ((a)==PUBKEY_ALGO_DSA)
/* The data encryption key object. */
typedef struct
{
int algo;
int keylen;
int algo_info_printed;
int use_mdc;
int symmetric;
byte key[32]; /* This is the largest used keylen (256 bit). */
char s2k_cacheid[1+16+1];
} DEK;
/* Constants to allocate static MPI arrays. */
#define PUBKEY_MAX_NPKEY 5
#define PUBKEY_MAX_NSKEY 7
#define PUBKEY_MAX_NSIG 2
#define PUBKEY_MAX_NENC 2
#endif /*G10_CIPHER_H*/