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/* pgp.h
*
* PGP related functions.
*/
/* nettle, low-level cryptographics library
*
* Copyright (C) 2001, 2002 Niels Möller
*
* The nettle library 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.
*
* The nettle 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the nettle library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
#ifndef NETTLE_PGP_H_INCLUDED
#define NETTLE_PGP_H_INCLUDED
#include <time.h>
#include "nettle-types.h"
#include "bignum.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Name mangling */
#define pgp_put_uint32 nettle_pgp_put_uint32
#define pgp_put_uint16 nettle_pgp_put_uint16
#define pgp_put_mpi nettle_pgp_put_mpi
#define pgp_put_string nettle_pgp_put_string
#define pgp_put_length nettle_pgp_put_length
#define pgp_put_header nettle_pgp_put_header
#define pgp_put_header_length nettle_pgp_put_header_length
#define pgp_sub_packet_start nettle_pgp_sub_packet_start
#define pgp_put_sub_packet nettle_pgp_put_sub_packet
#define pgp_sub_packet_end nettle_pgp_sub_packet_end
#define pgp_put_public_rsa_key nettle_pgp_put_public_rsa_key
#define pgp_put_rsa_sha1_signature nettle_pgp_put_rsa_sha1_signature
#define pgp_put_userid nettle_pgp_put_userid
#define pgp_crc24 nettle_pgp_crc24
#define pgp_armor nettle_pgp_armor
struct nettle_buffer;
struct rsa_public_key;
struct rsa_private_key;
struct sha1_ctx;
int
pgp_put_uint32(struct nettle_buffer *buffer, uint32_t i);
int
pgp_put_uint16(struct nettle_buffer *buffer, unsigned i);
int
pgp_put_mpi(struct nettle_buffer *buffer, const mpz_t x);
int
pgp_put_string(struct nettle_buffer *buffer,
unsigned length,
const uint8_t *s);
int
pgp_put_length(struct nettle_buffer *buffer,
unsigned length);
int
pgp_put_header(struct nettle_buffer *buffer,
unsigned tag, unsigned length);
void
pgp_put_header_length(struct nettle_buffer *buffer,
/* start of the header */
unsigned start,
unsigned field_size);
unsigned
pgp_sub_packet_start(struct nettle_buffer *buffer);
int
pgp_put_sub_packet(struct nettle_buffer *buffer,
unsigned type,
unsigned length,
const uint8_t *data);
void
pgp_sub_packet_end(struct nettle_buffer *buffer, unsigned start);
int
pgp_put_public_rsa_key(struct nettle_buffer *,
const struct rsa_public_key *key,
time_t timestamp);
int
pgp_put_rsa_sha1_signature(struct nettle_buffer *buffer,
const struct rsa_private_key *key,
const uint8_t *keyid,
unsigned type,
struct sha1_ctx *hash);
int
pgp_put_userid(struct nettle_buffer *buffer,
unsigned length,
const uint8_t *name);
uint32_t
pgp_crc24(unsigned length, const uint8_t *data);
int
pgp_armor(struct nettle_buffer *buffer,
const char *tag,
unsigned length,
const uint8_t *data);
/* Values that can be passed to pgp_put_header when the size of the
* length field, but not the length itself, is known. Also the minimum length
* for the given field size. */
enum pgp_lengths
{
PGP_LENGTH_ONE_OCTET = 0,
PGP_LENGTH_TWO_OCTETS = 192,
PGP_LENGTH_FOUR_OCTETS = 8384,
};
enum pgp_public_key_algorithm
{
PGP_RSA = 1,
PGP_RSA_ENCRYPT = 2,
PGP_RSA_SIGN = 3,
PGP_EL_GAMAL_ENCRYPT = 16,
PGP_DSA = 17,
PGP_EL_GAMAL = 20,
};
enum pgp_symmetric_algorithm
{
PGP_PLAINTEXT = 0,
PGP_IDEA = 1,
PGP_3DES = 2,
PGP_CAST5 = 3,
PGP_BLOWFISH = 4,
PGP_SAFER_SK = 5,
PGP_AES128 = 7,
PGP_AES192 = 8,
PGP_AES256 = 9,
};
enum pgp_compression_algorithm
{
PGP_UNCOMPRESSED = 0,
PGP_ZIP = 1,
PGP_ZLIB = 2,
};
enum pgp_hash_algorithm
{
PGP_MD5 = 1,
PGP_SHA1 = 2,
PGP_RIPEMD = 3,
PGP_MD2 = 5,
PGP_TIGER192 = 6,
PGP_HAVAL = 7,
};
enum pgp_tag
{
PGP_TAG_PUBLIC_SESSION_KEY = 1,
PGP_TAG_SIGNATURE = 2,
PGP_TAG_SYMMETRIC_SESSION_KEY = 3,
PGP_TAG_ONE_PASS_SIGNATURE = 4,
PGP_TAG_SECRET_KEY = 5,
PGP_TAG_PUBLIC_KEY = 6,
PGP_TAG_SECRET_SUBKEY = 7,
PGP_TAG_COMPRESSED = 8,
PGP_TAG_ENCRYPTED = 9,
PGP_TAG_MARKER = 10,
PGP_TAG_LITERAL = 11,
PGP_TAG_TRUST = 12,
PGP_TAG_USERID = 13,
PGP_TAG_PUBLIC_SUBKEY = 14,
};
enum pgp_signature_type
{
PGP_SIGN_BINARY = 0,
PGP_SIGN_TEXT = 1,
PGP_SIGN_STANDALONE = 2,
PGP_SIGN_CERTIFICATION = 0x10,
PGP_SIGN_CERTIFICATION_PERSONA = 0x11,
PGP_SIGN_CERTIFICATION_CASUAL = 0x12,
PGP_SIGN_CERTIFICATION_POSITIVE = 0x13,
PGP_SIGN_SUBKEY = 0x18,
PGP_SIGN_KEY = 0x1f,
PGP_SIGN_REVOCATION = 0x20,
PGP_SIGN_REVOCATION_SUBKEY = 0x28,
PGP_SIGN_REVOCATION_CERTIFICATE = 0x30,
PGP_SIGN_TIMESTAMP = 0x40,
};
enum pgp_subpacket_tag
{
PGP_SUBPACKET_CREATION_TIME = 2,
PGP_SUBPACKET_SIGNATURE_EXPIRATION_TIME = 3,
PGP_SUBPACKET_EXPORTABLE_CERTIFICATION = 4,
PGP_SUBPACKET_TRUST_SIGNATURE = 5,
PGP_SUBPACKET_REGULAR_EXPRESSION = 6,
PGP_SUBPACKET_REVOCABLE = 7,
PGP_SUBPACKET_KEY_EXPIRATION_TIME = 9,
PGP_SUBPACKET_PLACEHOLDER = 10 ,
PGP_SUBPACKET_PREFERRED_SYMMETRIC_ALGORITHMS = 11,
PGP_SUBPACKET_REVOCATION_KEY = 12,
PGP_SUBPACKET_ISSUER_KEY_ID = 16,
PGP_SUBPACKET_NOTATION_DATA = 20,
PGP_SUBPACKET_PREFERRED_HASH_ALGORITHMS = 21,
PGP_SUBPACKET_PREFERRED_COMPRESSION_ALGORITHMS = 22,
PGP_SUBPACKET_KEY_SERVER_PREFERENCES = 23,
PGP_SUBPACKET_PREFERRED_KEY_SERVER = 24,
PGP_SUBPACKET_PRIMARY_USER_ID = 25,
PGP_SUBPACKET_POLICY_URL = 26,
PGP_SUBPACKET_KEY_FLAGS = 27,
PGP_SUBPACKET_SIGNERS_USER_ID = 28,
PGP_SUBPACKET_REASON_FOR_REVOCATION = 29,
};
#ifdef __cplusplus
}
#endif
#endif /* NETTLE_PGP_H_INCLUDED */
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