/* * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation * * Author: Nikos Mavroyanopoulos * * This file is part of GNUTLS. * * The GNUTLS 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. * * This 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 this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA * */ #ifndef ALGORITHMS_H # define ALGORITHMS_H #include "gnutls_auth.h" /* functions for version */ gnutls_protocol_t _gnutls_version_lowest(gnutls_session_t session); gnutls_protocol_t _gnutls_version_max(gnutls_session_t session); int _gnutls_version_priority(gnutls_session_t session, gnutls_protocol_t version); int _gnutls_version_is_supported(gnutls_session_t session, const gnutls_protocol_t version); int _gnutls_version_get_major(gnutls_protocol_t ver); int _gnutls_version_get_minor(gnutls_protocol_t ver); gnutls_protocol_t _gnutls_version_get(int major, int minor); /* functions for macs */ const char *gnutls_mac_get_name(gnutls_mac_algorithm_t algorithm); int _gnutls_mac_is_ok(gnutls_mac_algorithm_t algorithm); int _gnutls_mac_priority(gnutls_session_t session, gnutls_mac_algorithm_t algorithm); gnutls_mac_algorithm_t _gnutls_x509_oid2mac_algorithm(const char *oid); const char *_gnutls_x509_mac_to_oid(gnutls_mac_algorithm_t mac); /* functions for cipher suites */ int _gnutls_supported_ciphersuites(gnutls_session_t session, cipher_suite_st ** ciphers); int _gnutls_supported_ciphersuites_sorted(gnutls_session_t session, cipher_suite_st ** ciphers); int _gnutls_supported_compression_methods(gnutls_session_t session, uint8 ** comp); const char *_gnutls_cipher_suite_get_name(cipher_suite_st * algorithm); gnutls_cipher_algorithm_t _gnutls_cipher_suite_get_cipher_algo(const cipher_suite_st* algorithm); gnutls_kx_algorithm_t _gnutls_cipher_suite_get_kx_algo(const cipher_suite_st * algorithm); gnutls_mac_algorithm_t _gnutls_cipher_suite_get_mac_algo(const cipher_suite_st *algorithm); gnutls_protocol_t _gnutls_cipher_suite_get_version(const cipher_suite_st * algorithm); cipher_suite_st _gnutls_cipher_suite_get_suite_name(cipher_suite_st * algorithm); /* functions for ciphers */ int _gnutls_cipher_priority(gnutls_session_t session, gnutls_cipher_algorithm_t algorithm); int _gnutls_cipher_get_block_size(gnutls_cipher_algorithm_t algorithm); int _gnutls_cipher_is_block(gnutls_cipher_algorithm_t algorithm); int _gnutls_cipher_is_ok(gnutls_cipher_algorithm_t algorithm); size_t gnutls_cipher_get_key_size(gnutls_cipher_algorithm_t algorithm); int _gnutls_cipher_get_iv_size(gnutls_cipher_algorithm_t algorithm); int _gnutls_cipher_get_export_flag(gnutls_cipher_algorithm_t algorithm); const char *gnutls_cipher_get_name(gnutls_cipher_algorithm_t algorithm); /* functions for key exchange */ int _gnutls_kx_priority(gnutls_session_t session, gnutls_kx_algorithm_t algorithm); int _gnutls_kx_needs_dh_params(gnutls_kx_algorithm_t algorithm); int _gnutls_kx_needs_rsa_params(gnutls_kx_algorithm_t algorithm); mod_auth_st *_gnutls_kx_auth_struct(gnutls_kx_algorithm_t algorithm); const char *gnutls_kx_get_name(gnutls_kx_algorithm_t algorithm); int _gnutls_kx_is_ok(gnutls_kx_algorithm_t algorithm); /* functions for compression */ int _gnutls_compression_priority(gnutls_session_t session, gnutls_compression_method_t algorithm); int _gnutls_compression_is_ok(gnutls_compression_method_t algorithm); int _gnutls_compression_get_num(gnutls_compression_method_t algorithm); gnutls_compression_method_t _gnutls_compression_get_id(int num); const char *gnutls_compression_get_name(gnutls_compression_method_t algorithm); int _gnutls_compression_get_mem_level(gnutls_compression_method_t algorithm); int _gnutls_compression_get_comp_level(gnutls_compression_method_t algorithm); int _gnutls_compression_get_wbits(gnutls_compression_method_t algorithm); /* Type to KX mappings */ gnutls_kx_algorithm_t _gnutls_map_kx_get_kx(gnutls_credentials_type_t type, int server); gnutls_credentials_type_t _gnutls_map_kx_get_cred(gnutls_kx_algorithm_t algorithm, int server); /* KX to PK mapping */ gnutls_pk_algorithm_t _gnutls_map_pk_get_pk(gnutls_kx_algorithm_t kx_algorithm); gnutls_pk_algorithm_t _gnutls_x509_oid2pk_algorithm(const char *oid); const char *_gnutls_x509_pk_to_oid(gnutls_pk_algorithm_t pk); enum encipher_type { CIPHER_ENCRYPT = 0, CIPHER_SIGN = 1, CIPHER_IGN }; enum encipher_type _gnutls_kx_encipher_type(gnutls_kx_algorithm_t algorithm); struct gnutls_kx_algo_entry { const char *name; gnutls_kx_algorithm_t algorithm; mod_auth_st *auth_struct; int needs_dh_params; int needs_rsa_params; }; typedef struct gnutls_kx_algo_entry gnutls_kx_algo_entry; struct gnutls_compression_entry { const char *name; gnutls_compression_method_t id; int num; /* the number reserved in TLS for the specific compression method */ /* used in zlib compressor */ int window_bits; int mem_level; int comp_level; }; typedef struct gnutls_compression_entry gnutls_compression_entry; /* sign algorithms stuff */ gnutls_sign_algorithm_t _gnutls_x509_oid2sign_algorithm(const char *oid); gnutls_sign_algorithm_t _gnutls_x509_oid2sign_algorithm(const char *oid); gnutls_sign_algorithm_t _gnutls_x509_pk_to_sign(gnutls_pk_algorithm_t pk, gnutls_mac_algorithm_t mac); const char *_gnutls_x509_sign_to_oid(gnutls_pk_algorithm_t, gnutls_mac_algorithm_t mac); #endif