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|
/*
* Copyright (C) 2011 Free Software Foundation, Inc.
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* The GnuTLS 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 3 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 program. If not, see <http://www.gnu.org/licenses/>
*
*/
#include <gnutls_int.h>
#include <algorithms.h>
#include <gnutls_errors.h>
#include <x509/common.h>
/* Cipher SUITES */
#define GNUTLS_CIPHER_SUITE_ENTRY( name, block_algorithm, kx_algorithm, mac_algorithm, min_version, max_version, dtls ) \
{ #name, {name}, block_algorithm, kx_algorithm, mac_algorithm, min_version, max_version, dtls, GNUTLS_MAC_SHA256}
#define GNUTLS_CIPHER_SUITE_ENTRY_PRF( name, block_algorithm, kx_algorithm, mac_algorithm, min_version, max_version, dtls, prf ) \
{ #name, {name}, block_algorithm, kx_algorithm, mac_algorithm, min_version, max_version, dtls, prf}
typedef struct
{
const char *name;
const cipher_suite_st id;
gnutls_cipher_algorithm_t block_algorithm;
gnutls_kx_algorithm_t kx_algorithm;
gnutls_mac_algorithm_t mac_algorithm;
gnutls_protocol_t min_version; /* this cipher suite is supported
* from 'version' and above;
*/
gnutls_protocol_t max_version; /* this cipher suite is not supported after that */
unsigned int dtls:1; /* whether this ciphersuite is valid in DTLS */
gnutls_mac_algorithm_t prf;
} gnutls_cipher_suite_entry;
/* RSA with NULL cipher and MD5 MAC
* for test purposes.
*/
#define GNUTLS_RSA_NULL_MD5 { 0x00, 0x01 }
#define GNUTLS_RSA_NULL_SHA1 { 0x00, 0x02 }
#define GNUTLS_RSA_NULL_SHA256 { 0x00, 0x3B }
/* ANONymous cipher suites.
*/
#define GNUTLS_DH_ANON_3DES_EDE_CBC_SHA1 { 0x00, 0x1B }
#define GNUTLS_DH_ANON_ARCFOUR_MD5 { 0x00, 0x18 }
/* rfc3268: */
#define GNUTLS_DH_ANON_AES_128_CBC_SHA1 { 0x00, 0x34 }
#define GNUTLS_DH_ANON_AES_256_CBC_SHA1 { 0x00, 0x3A }
/* rfc4132 */
#define GNUTLS_DH_ANON_CAMELLIA_128_CBC_SHA1 { 0x00,0x46 }
#define GNUTLS_DH_ANON_CAMELLIA_256_CBC_SHA1 { 0x00,0x89 }
#define GNUTLS_DH_ANON_AES_128_CBC_SHA256 { 0x00, 0x6C }
#define GNUTLS_DH_ANON_AES_256_CBC_SHA256 { 0x00, 0x6D }
/* PSK (not in TLS 1.0)
* draft-ietf-tls-psk:
*/
#define GNUTLS_PSK_SHA_ARCFOUR_SHA1 { 0x00, 0x8A }
#define GNUTLS_PSK_SHA_3DES_EDE_CBC_SHA1 { 0x00, 0x8B }
#define GNUTLS_PSK_SHA_AES_128_CBC_SHA1 { 0x00, 0x8C }
#define GNUTLS_PSK_SHA_AES_256_CBC_SHA1 { 0x00, 0x8D }
#define GNUTLS_DHE_PSK_SHA_ARCFOUR_SHA1 { 0x00, 0x8E }
#define GNUTLS_DHE_PSK_SHA_3DES_EDE_CBC_SHA1 { 0x00, 0x8F }
#define GNUTLS_DHE_PSK_SHA_AES_128_CBC_SHA1 { 0x00, 0x90 }
#define GNUTLS_DHE_PSK_SHA_AES_256_CBC_SHA1 { 0x00, 0x91 }
/* SRP (rfc5054)
*/
#define GNUTLS_SRP_SHA_3DES_EDE_CBC_SHA1 { 0xC0, 0x1A }
#define GNUTLS_SRP_SHA_RSA_3DES_EDE_CBC_SHA1 { 0xC0, 0x1B }
#define GNUTLS_SRP_SHA_DSS_3DES_EDE_CBC_SHA1 { 0xC0, 0x1C }
#define GNUTLS_SRP_SHA_AES_128_CBC_SHA1 { 0xC0, 0x1D }
#define GNUTLS_SRP_SHA_RSA_AES_128_CBC_SHA1 { 0xC0, 0x1E }
#define GNUTLS_SRP_SHA_DSS_AES_128_CBC_SHA1 { 0xC0, 0x1F }
#define GNUTLS_SRP_SHA_AES_256_CBC_SHA1 { 0xC0, 0x20 }
#define GNUTLS_SRP_SHA_RSA_AES_256_CBC_SHA1 { 0xC0, 0x21 }
#define GNUTLS_SRP_SHA_DSS_AES_256_CBC_SHA1 { 0xC0, 0x22 }
/* RSA
*/
#define GNUTLS_RSA_ARCFOUR_SHA1 { 0x00, 0x05 }
#define GNUTLS_RSA_ARCFOUR_MD5 { 0x00, 0x04 }
#define GNUTLS_RSA_3DES_EDE_CBC_SHA1 { 0x00, 0x0A }
#define GNUTLS_RSA_EXPORT_ARCFOUR_40_MD5 { 0x00, 0x03 }
/* rfc3268:
*/
#define GNUTLS_RSA_AES_128_CBC_SHA1 { 0x00, 0x2F }
#define GNUTLS_RSA_AES_256_CBC_SHA1 { 0x00, 0x35 }
/* rfc4132 */
#define GNUTLS_RSA_CAMELLIA_128_CBC_SHA1 { 0x00,0x41 }
#define GNUTLS_RSA_CAMELLIA_256_CBC_SHA1 { 0x00,0x84 }
#define GNUTLS_RSA_AES_128_CBC_SHA256 { 0x00, 0x3C }
#define GNUTLS_RSA_AES_256_CBC_SHA256 { 0x00, 0x3D }
/* DHE DSS
*/
#define GNUTLS_DHE_DSS_3DES_EDE_CBC_SHA1 { 0x00, 0x13 }
/* draft-ietf-tls-56-bit-ciphersuites-01:
*/
#define GNUTLS_DHE_DSS_ARCFOUR_SHA1 { 0x00, 0x66 }
/* rfc3268:
*/
#define GNUTLS_DHE_DSS_AES_256_CBC_SHA1 { 0x00, 0x38 }
#define GNUTLS_DHE_DSS_AES_128_CBC_SHA1 { 0x00, 0x32 }
/* rfc4132 */
#define GNUTLS_DHE_DSS_CAMELLIA_128_CBC_SHA1 { 0x00,0x44 }
#define GNUTLS_DHE_DSS_CAMELLIA_256_CBC_SHA1 { 0x00,0x87 }
#define GNUTLS_DHE_DSS_AES_128_CBC_SHA256 { 0x00, 0x40 }
#define GNUTLS_DHE_DSS_AES_256_CBC_SHA256 { 0x00, 0x6A }
/* DHE RSA
*/
#define GNUTLS_DHE_RSA_3DES_EDE_CBC_SHA1 { 0x00, 0x16 }
/* rfc3268:
*/
#define GNUTLS_DHE_RSA_AES_128_CBC_SHA1 { 0x00, 0x33 }
#define GNUTLS_DHE_RSA_AES_256_CBC_SHA1 { 0x00, 0x39 }
/* rfc4132 */
#define GNUTLS_DHE_RSA_CAMELLIA_128_CBC_SHA1 { 0x00,0x45 }
#define GNUTLS_DHE_RSA_CAMELLIA_256_CBC_SHA1 { 0x00,0x88 }
#define GNUTLS_DHE_RSA_AES_128_CBC_SHA256 { 0x00, 0x67 }
#define GNUTLS_DHE_RSA_AES_256_CBC_SHA256 { 0x00, 0x6B }
/* GCM: RFC5288 */
#define GNUTLS_RSA_AES_128_GCM_SHA256 { 0x00, 0x9C }
#define GNUTLS_DHE_RSA_AES_128_GCM_SHA256 {0x00,0x9E}
#define GNUTLS_DHE_DSS_AES_128_GCM_SHA256 {0x00,0xA2}
#define GNUTLS_DH_ANON_AES_128_GCM_SHA256 {0x00,0xA6}
/* RFC 5487 */
/* GCM-PSK */
#define GNUTLS_PSK_AES_128_GCM_SHA256 { 0x00, 0xA8 }
#define GNUTLS_DHE_PSK_AES_128_GCM_SHA256 { 0x00, 0xAA }
/* PSK - SHA256 HMAC */
#define GNUTLS_PSK_AES_128_CBC_SHA256 { 0x00, 0xAE }
#define GNUTLS_DHE_PSK_AES_128_CBC_SHA256 { 0x00, 0xB2 }
#define GNUTLS_PSK_NULL_SHA256 { 0x00, 0xB0 }
#define GNUTLS_DHE_PSK_NULL_SHA256 { 0x00, 0xB4 }
/* ECC */
#define GNUTLS_ECDH_ANON_NULL_SHA { 0xC0, 0x15 }
#define GNUTLS_ECDH_ANON_3DES_EDE_CBC_SHA { 0xC0, 0x17 }
#define GNUTLS_ECDH_ANON_AES_128_CBC_SHA { 0xC0, 0x18 }
#define GNUTLS_ECDH_ANON_AES_256_CBC_SHA { 0xC0, 0x19 }
/* ECC-RSA */
#define GNUTLS_ECDHE_RSA_NULL_SHA { 0xC0, 0x10 }
#define GNUTLS_ECDHE_RSA_3DES_EDE_CBC_SHA { 0xC0, 0x12 }
#define GNUTLS_ECDHE_RSA_AES_128_CBC_SHA { 0xC0, 0x13 }
#define GNUTLS_ECDHE_RSA_AES_256_CBC_SHA { 0xC0, 0x14 }
/* ECC-ECDSA */
#define GNUTLS_ECDHE_ECDSA_NULL_SHA { 0xC0, 0x06 }
#define GNUTLS_ECDHE_ECDSA_3DES_EDE_CBC_SHA { 0xC0, 0x08 }
#define GNUTLS_ECDHE_ECDSA_AES_128_CBC_SHA { 0xC0, 0x09 }
#define GNUTLS_ECDHE_ECDSA_AES_256_CBC_SHA { 0xC0, 0x0A }
/* ECC with SHA2 */
#define GNUTLS_ECDHE_ECDSA_AES_128_CBC_SHA256 {0xC0,0x23}
#define GNUTLS_ECDHE_RSA_AES_128_CBC_SHA256 {0xC0,0x27}
/* ECC with AES-GCM */
#define GNUTLS_ECDHE_ECDSA_AES_128_GCM_SHA256 {0xC0,0x2B}
#define GNUTLS_ECDHE_RSA_AES_128_GCM_SHA256 {0xC0,0x2F}
#define GNUTLS_ECDHE_RSA_AES_256_GCM_SHA384 {0xC0,0x30}
/* SuiteB */
#define GNUTLS_ECDHE_ECDSA_AES_256_GCM_SHA384 {0xC0,0x2E}
#define GNUTLS_ECDHE_ECDSA_AES_256_CBC_SHA384 {0xC0,0x24}
/* ECC with PSK */
#define GNUTLS_ECDHE_PSK_3DES_EDE_CBC_SHA { 0xC0, 0x34 }
#define GNUTLS_ECDHE_PSK_AES_128_CBC_SHA { 0xC0, 0x35 }
#define GNUTLS_ECDHE_PSK_AES_256_CBC_SHA { 0xC0, 0x36 }
#define GNUTLS_ECDHE_PSK_AES_128_CBC_SHA256 { 0xC0, 0x37 }
#define GNUTLS_ECDHE_PSK_AES_256_CBC_SHA384 { 0xC0, 0x38 }
#define GNUTLS_ECDHE_PSK_NULL_SHA256 { 0xC0, 0x3A }
#define GNUTLS_ECDHE_PSK_NULL_SHA384 { 0xC0, 0x3B }
#define CIPHER_SUITES_COUNT (sizeof(cs_algorithms)/sizeof(gnutls_cipher_suite_entry)-1)
static const gnutls_cipher_suite_entry cs_algorithms[] = {
/* DH_ANON */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DH_ANON_ARCFOUR_MD5,
GNUTLS_CIPHER_ARCFOUR_128,
GNUTLS_KX_ANON_DH, GNUTLS_MAC_MD5,
GNUTLS_SSL3, GNUTLS_VERSION_MAX, 0),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DH_ANON_3DES_EDE_CBC_SHA1,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_ANON_DH,
GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DH_ANON_AES_128_CBC_SHA1,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_ANON_DH,
GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DH_ANON_AES_256_CBC_SHA1,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_ANON_DH,
GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DH_ANON_CAMELLIA_128_CBC_SHA1,
GNUTLS_CIPHER_CAMELLIA_128_CBC,
GNUTLS_KX_ANON_DH,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DH_ANON_CAMELLIA_256_CBC_SHA1,
GNUTLS_CIPHER_CAMELLIA_256_CBC,
GNUTLS_KX_ANON_DH,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DH_ANON_AES_128_CBC_SHA256,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_ANON_DH,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DH_ANON_AES_256_CBC_SHA256,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_ANON_DH,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
/* PSK */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_PSK_SHA_ARCFOUR_SHA1,
GNUTLS_CIPHER_ARCFOUR, GNUTLS_KX_PSK,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 0),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_PSK_SHA_3DES_EDE_CBC_SHA1,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_PSK,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_PSK_SHA_AES_128_CBC_SHA1,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_PSK,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_PSK_SHA_AES_256_CBC_SHA1,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_PSK,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_PSK_AES_128_CBC_SHA256,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_PSK,
GNUTLS_MAC_SHA256, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_PSK_AES_128_GCM_SHA256,
GNUTLS_CIPHER_AES_128_GCM, GNUTLS_KX_PSK,
GNUTLS_MAC_AEAD, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_PSK_NULL_SHA256,
GNUTLS_CIPHER_NULL, GNUTLS_KX_PSK,
GNUTLS_MAC_SHA256, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
/* DHE-PSK */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_PSK_SHA_ARCFOUR_SHA1,
GNUTLS_CIPHER_ARCFOUR, GNUTLS_KX_DHE_PSK,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 0),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_PSK_SHA_3DES_EDE_CBC_SHA1,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_DHE_PSK,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_PSK_SHA_AES_128_CBC_SHA1,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_DHE_PSK,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_PSK_SHA_AES_256_CBC_SHA1,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_DHE_PSK,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_PSK_AES_128_CBC_SHA256,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_DHE_PSK,
GNUTLS_MAC_SHA256, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_PSK_AES_128_GCM_SHA256,
GNUTLS_CIPHER_AES_128_GCM, GNUTLS_KX_DHE_PSK,
GNUTLS_MAC_AEAD, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_PSK_NULL_SHA256,
GNUTLS_CIPHER_NULL, GNUTLS_KX_DHE_PSK,
GNUTLS_MAC_SHA256, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
/* SRP */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_SRP_SHA_3DES_EDE_CBC_SHA1,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_SRP,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_SRP_SHA_AES_128_CBC_SHA1,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_SRP,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_SRP_SHA_AES_256_CBC_SHA1,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_SRP,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_SRP_SHA_DSS_3DES_EDE_CBC_SHA1,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_SRP_DSS,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_SRP_SHA_RSA_3DES_EDE_CBC_SHA1,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_SRP_RSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_SRP_SHA_DSS_AES_128_CBC_SHA1,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_SRP_DSS,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_SRP_SHA_RSA_AES_128_CBC_SHA1,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_SRP_RSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_SRP_SHA_DSS_AES_256_CBC_SHA1,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_SRP_DSS,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_SRP_SHA_RSA_AES_256_CBC_SHA1,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_SRP_RSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
/* DHE_DSS */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_DSS_ARCFOUR_SHA1,
GNUTLS_CIPHER_ARCFOUR_128, GNUTLS_KX_DHE_DSS,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 0),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_DSS_3DES_EDE_CBC_SHA1,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_DHE_DSS,
GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_DSS_AES_128_CBC_SHA1,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_DHE_DSS,
GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_DSS_AES_256_CBC_SHA1,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_DHE_DSS,
GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_DSS_CAMELLIA_128_CBC_SHA1,
GNUTLS_CIPHER_CAMELLIA_128_CBC,
GNUTLS_KX_DHE_DSS,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_DSS_CAMELLIA_256_CBC_SHA1,
GNUTLS_CIPHER_CAMELLIA_256_CBC,
GNUTLS_KX_DHE_DSS,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_DSS_AES_128_CBC_SHA256,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_DHE_DSS,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_DSS_AES_256_CBC_SHA256,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_DHE_DSS,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
/* DHE_RSA */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_RSA_3DES_EDE_CBC_SHA1,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_DHE_RSA,
GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_RSA_AES_128_CBC_SHA1,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_DHE_RSA,
GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_RSA_AES_256_CBC_SHA1,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_DHE_RSA,
GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_RSA_CAMELLIA_128_CBC_SHA1,
GNUTLS_CIPHER_CAMELLIA_128_CBC,
GNUTLS_KX_DHE_RSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_RSA_CAMELLIA_256_CBC_SHA1,
GNUTLS_CIPHER_CAMELLIA_256_CBC,
GNUTLS_KX_DHE_RSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_RSA_AES_128_CBC_SHA256,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_DHE_RSA,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_RSA_AES_256_CBC_SHA256,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_DHE_RSA,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
/* RSA-NULL */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_NULL_MD5,
GNUTLS_CIPHER_NULL,
GNUTLS_KX_RSA, GNUTLS_MAC_MD5, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_NULL_SHA1,
GNUTLS_CIPHER_NULL,
GNUTLS_KX_RSA, GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_NULL_SHA256,
GNUTLS_CIPHER_NULL,
GNUTLS_KX_RSA, GNUTLS_MAC_SHA256, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
/* RSA-EXPORT */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_EXPORT_ARCFOUR_40_MD5,
GNUTLS_CIPHER_ARCFOUR_40,
GNUTLS_KX_RSA_EXPORT, GNUTLS_MAC_MD5,
GNUTLS_SSL3, GNUTLS_TLS1_0, 0),
/* RSA */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_ARCFOUR_SHA1,
GNUTLS_CIPHER_ARCFOUR_128,
GNUTLS_KX_RSA, GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 0),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_ARCFOUR_MD5,
GNUTLS_CIPHER_ARCFOUR_128,
GNUTLS_KX_RSA, GNUTLS_MAC_MD5, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 0),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_3DES_EDE_CBC_SHA1,
GNUTLS_CIPHER_3DES_CBC,
GNUTLS_KX_RSA, GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_AES_128_CBC_SHA1,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_RSA,
GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_AES_256_CBC_SHA1,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_RSA,
GNUTLS_MAC_SHA1, GNUTLS_SSL3,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_CAMELLIA_128_CBC_SHA1,
GNUTLS_CIPHER_CAMELLIA_128_CBC, GNUTLS_KX_RSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_CAMELLIA_256_CBC_SHA1,
GNUTLS_CIPHER_CAMELLIA_256_CBC, GNUTLS_KX_RSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_AES_128_CBC_SHA256,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_RSA,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_AES_256_CBC_SHA256,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_RSA,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
/* GCM */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_RSA_AES_128_GCM_SHA256,
GNUTLS_CIPHER_AES_128_GCM, GNUTLS_KX_RSA,
GNUTLS_MAC_AEAD, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_RSA_AES_128_GCM_SHA256,
GNUTLS_CIPHER_AES_128_GCM, GNUTLS_KX_DHE_RSA,
GNUTLS_MAC_AEAD, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DHE_DSS_AES_128_GCM_SHA256,
GNUTLS_CIPHER_AES_128_GCM, GNUTLS_KX_DHE_DSS,
GNUTLS_MAC_AEAD, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_DH_ANON_AES_128_GCM_SHA256,
GNUTLS_CIPHER_AES_128_GCM, GNUTLS_KX_ANON_DH,
GNUTLS_MAC_AEAD, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
/* ECC-ANON */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDH_ANON_NULL_SHA,
GNUTLS_CIPHER_NULL, GNUTLS_KX_ANON_ECDH,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDH_ANON_3DES_EDE_CBC_SHA,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_ANON_ECDH,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDH_ANON_AES_128_CBC_SHA,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_ANON_ECDH,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDH_ANON_AES_256_CBC_SHA,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_ANON_ECDH,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
/* ECC-RSA */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_RSA_NULL_SHA,
GNUTLS_CIPHER_NULL, GNUTLS_KX_ECDHE_RSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_RSA_3DES_EDE_CBC_SHA,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_ECDHE_RSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_RSA_AES_128_CBC_SHA,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_ECDHE_RSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_RSA_AES_256_CBC_SHA,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_ECDHE_RSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
/* ECDHE-ECDSA */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_ECDSA_NULL_SHA,
GNUTLS_CIPHER_NULL, GNUTLS_KX_ECDHE_ECDSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_ECDSA_3DES_EDE_CBC_SHA,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_ECDHE_ECDSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_ECDSA_AES_128_CBC_SHA,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_ECDHE_ECDSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_ECDSA_AES_256_CBC_SHA,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_ECDHE_ECDSA,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
/* More ECC */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_ECDSA_AES_128_CBC_SHA256,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_ECDHE_ECDSA,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_RSA_AES_128_CBC_SHA256,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_ECDHE_RSA,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_ECDSA_AES_128_GCM_SHA256,
GNUTLS_CIPHER_AES_128_GCM, GNUTLS_KX_ECDHE_ECDSA,
GNUTLS_MAC_AEAD, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_RSA_AES_128_GCM_SHA256,
GNUTLS_CIPHER_AES_128_GCM, GNUTLS_KX_ECDHE_RSA,
GNUTLS_MAC_AEAD, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1),
/* ECC - PSK */
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_PSK_3DES_EDE_CBC_SHA,
GNUTLS_CIPHER_3DES_CBC, GNUTLS_KX_ECDHE_PSK,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_PSK_AES_128_CBC_SHA,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_ECDHE_PSK,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_PSK_AES_256_CBC_SHA,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_ECDHE_PSK,
GNUTLS_MAC_SHA1, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_PSK_AES_128_CBC_SHA256,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_ECDHE_PSK,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY_PRF (GNUTLS_ECDHE_PSK_AES_256_CBC_SHA384,
GNUTLS_CIPHER_AES_128_CBC, GNUTLS_KX_ECDHE_PSK,
GNUTLS_MAC_SHA384, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1, GNUTLS_MAC_SHA384),
GNUTLS_CIPHER_SUITE_ENTRY (GNUTLS_ECDHE_PSK_NULL_SHA256,
GNUTLS_CIPHER_NULL, GNUTLS_KX_ECDHE_PSK,
GNUTLS_MAC_SHA256, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1),
GNUTLS_CIPHER_SUITE_ENTRY_PRF (GNUTLS_ECDHE_PSK_NULL_SHA384,
GNUTLS_CIPHER_NULL, GNUTLS_KX_ECDHE_PSK,
GNUTLS_MAC_SHA384, GNUTLS_TLS1_0,
GNUTLS_VERSION_MAX, 1, GNUTLS_MAC_SHA384),
GNUTLS_CIPHER_SUITE_ENTRY_PRF(GNUTLS_ECDHE_ECDSA_AES_256_GCM_SHA384,
GNUTLS_CIPHER_AES_256_GCM, GNUTLS_KX_ECDHE_ECDSA,
GNUTLS_MAC_AEAD, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1, GNUTLS_DIG_SHA384),
GNUTLS_CIPHER_SUITE_ENTRY_PRF(GNUTLS_ECDHE_RSA_AES_256_GCM_SHA384,
GNUTLS_CIPHER_AES_256_GCM, GNUTLS_KX_ECDHE_RSA,
GNUTLS_MAC_AEAD, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1, GNUTLS_DIG_SHA384),
GNUTLS_CIPHER_SUITE_ENTRY_PRF(GNUTLS_ECDHE_ECDSA_AES_256_CBC_SHA384,
GNUTLS_CIPHER_AES_256_CBC, GNUTLS_KX_ECDHE_ECDSA,
GNUTLS_MAC_SHA384, GNUTLS_TLS1_2,
GNUTLS_VERSION_MAX, 1, GNUTLS_DIG_SHA384),
{0, {{0, 0}}, 0, 0, 0, 0, 0, 0}
};
#define GNUTLS_CIPHER_SUITE_LOOP(b) \
const gnutls_cipher_suite_entry *p; \
for(p = cs_algorithms; p->name != NULL; p++) { b ; }
#define GNUTLS_CIPHER_SUITE_ALG_LOOP(a) \
GNUTLS_CIPHER_SUITE_LOOP( if( (p->id.suite[0] == suite->suite[0]) && (p->id.suite[1] == suite->suite[1])) { a; break; } )
/* Cipher Suite's functions */
gnutls_cipher_algorithm_t
_gnutls_cipher_suite_get_cipher_algo (const cipher_suite_st * suite)
{
int ret = 0;
GNUTLS_CIPHER_SUITE_ALG_LOOP (ret = p->block_algorithm);
return ret;
}
gnutls_kx_algorithm_t
_gnutls_cipher_suite_get_kx_algo (const cipher_suite_st * suite)
{
int ret = 0;
GNUTLS_CIPHER_SUITE_ALG_LOOP (ret = p->kx_algorithm);
return ret;
}
gnutls_mac_algorithm_t
_gnutls_cipher_suite_get_prf (const cipher_suite_st * suite)
{
int ret = 0;
GNUTLS_CIPHER_SUITE_ALG_LOOP (ret = p->prf);
return ret;
}
gnutls_mac_algorithm_t
_gnutls_cipher_suite_get_mac_algo (const cipher_suite_st * suite)
{ /* In bytes */
int ret = 0;
GNUTLS_CIPHER_SUITE_ALG_LOOP (ret = p->mac_algorithm);
return ret;
}
const char *
_gnutls_cipher_suite_get_name (cipher_suite_st * suite)
{
const char *ret = NULL;
/* avoid prefix */
GNUTLS_CIPHER_SUITE_ALG_LOOP (ret = p->name + sizeof ("GNUTLS_") - 1);
return ret;
}
static const gnutls_cipher_suite_entry *
cipher_suite_get (gnutls_kx_algorithm_t kx_algorithm,
gnutls_cipher_algorithm_t cipher_algorithm,
gnutls_mac_algorithm_t mac_algorithm)
{
const gnutls_cipher_suite_entry *ret = NULL;
GNUTLS_CIPHER_SUITE_LOOP (
if (kx_algorithm == p->kx_algorithm &&
cipher_algorithm == p->block_algorithm && mac_algorithm == p->mac_algorithm)
{
ret = p;
break;
}
);
return ret;
}
/**
* gnutls_cipher_suite_get_name:
* @kx_algorithm: is a Key exchange algorithm
* @cipher_algorithm: is a cipher algorithm
* @mac_algorithm: is a MAC algorithm
*
* Note that the full cipher suite name must be prepended by TLS or
* SSL depending of the protocol in use.
*
* Returns: a string that contains the name of a TLS cipher suite,
* specified by the given algorithms, or %NULL.
**/
const char *
gnutls_cipher_suite_get_name (gnutls_kx_algorithm_t kx_algorithm,
gnutls_cipher_algorithm_t cipher_algorithm,
gnutls_mac_algorithm_t mac_algorithm)
{
const gnutls_cipher_suite_entry * ce;
ce = cipher_suite_get (kx_algorithm, cipher_algorithm, mac_algorithm);
if (ce == NULL)
return NULL;
else
return ce->name + sizeof ("GNUTLS_") - 1;
}
/**
* gnutls_cipher_suite_info:
* @idx: index of cipher suite to get information about, starts on 0.
* @cs_id: output buffer with room for 2 bytes, indicating cipher suite value
* @kx: output variable indicating key exchange algorithm, or %NULL.
* @cipher: output variable indicating cipher, or %NULL.
* @mac: output variable indicating MAC algorithm, or %NULL.
* @min_version: output variable indicating TLS protocol version, or %NULL.
*
* Get information about supported cipher suites. Use the function
* iteratively to get information about all supported cipher suites.
* Call with idx=0 to get information about first cipher suite, then
* idx=1 and so on until the function returns NULL.
*
* Returns: the name of @idx cipher suite, and set the information
* about the cipher suite in the output variables. If @idx is out of
* bounds, %NULL is returned.
**/
const char *
gnutls_cipher_suite_info (size_t idx,
unsigned char *cs_id,
gnutls_kx_algorithm_t * kx,
gnutls_cipher_algorithm_t * cipher,
gnutls_mac_algorithm_t * mac,
gnutls_protocol_t * min_version)
{
if (idx >= CIPHER_SUITES_COUNT)
return NULL;
if (cs_id)
memcpy (cs_id, cs_algorithms[idx].id.suite, 2);
if (kx)
*kx = cs_algorithms[idx].kx_algorithm;
if (cipher)
*cipher = cs_algorithms[idx].block_algorithm;
if (mac)
*mac = cs_algorithms[idx].mac_algorithm;
if (min_version)
*min_version = cs_algorithms[idx].min_version;
return cs_algorithms[idx].name + sizeof ("GNU") - 1;
}
static inline int
_gnutls_cipher_suite_is_ok (cipher_suite_st * suite)
{
size_t ret;
const char *name = NULL;
GNUTLS_CIPHER_SUITE_ALG_LOOP (name = p->name);
if (name != NULL)
ret = 0;
else
ret = 1;
return ret;
}
int
_gnutls_supported_ciphersuites (gnutls_session_t session,
uint8_t *cipher_suites, int max_cipher_suite_size)
{
unsigned int i, ret_count, j, z, k=0;
const gnutls_cipher_suite_entry * ce;
int version = gnutls_protocol_get_version( session);
for (i = 0; i < session->internals.priorities.kx.algorithms; i++)
for (j = 0; j < session->internals.priorities.cipher.algorithms; j++)
for (z = 0; z < session->internals.priorities.mac.algorithms; z++)
{
ce = cipher_suite_get(session->internals.priorities.kx.priority[i],
session->internals.priorities.cipher.priority[j],
session->internals.priorities.mac.priority[z]);
if (ce == NULL) continue;
if (!(version >= ce->min_version && version <= ce->max_version))
continue;
if (IS_DTLS(session) && ce->dtls==0)
continue;
if (k+2 > max_cipher_suite_size)
return gnutls_assert_val(GNUTLS_E_INTERNAL_ERROR);
memcpy (&cipher_suites[k], ce->id.suite, 2);
k+=2;
}
ret_count = k;
/* This function can no longer return 0 cipher suites.
* It returns an error code instead.
*/
if (ret_count == 0)
{
gnutls_assert ();
return GNUTLS_E_NO_CIPHER_SUITES;
}
return ret_count;
}
/**
* gnutls_priority_get_cipher_suite:
* @pcache: is a #gnutls_prioritity_t structure.
* @idx: is an index number.
* @sidx: internal index of cipher suite to get information about.
*
* Provides the internal ciphersuite index to be used with
* gnutls_cipher_suite_info(). The index @idx provided is an
* index kept at the priorities structure. It might be that a valid
* priorities index does not correspond to a ciphersuite and in
* that case %GNUTLS_E_UNKNOWN_CIPHER_SUITE will be returned.
* Once the last available index is crossed then
* %GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.
*
* Returns: On success it returns %GNUTLS_E_SUCCESS (0), or a negative error value otherwise.
**/
int
gnutls_priority_get_cipher_suite_index (gnutls_priority_t pcache, unsigned int idx, unsigned int *sidx)
{
int mac_idx, cipher_idx, kx_idx, i;
int total = pcache->mac.algorithms * pcache->cipher.algorithms * pcache->kx.algorithms;
if (idx >= total)
return GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE;
mac_idx = idx % pcache->mac.algorithms;
idx /= pcache->mac.algorithms;
cipher_idx = idx % pcache->cipher.algorithms;
idx /= pcache->cipher.algorithms;
kx_idx = idx % pcache->kx.algorithms;
for (i=0;i<CIPHER_SUITES_COUNT;i++)
{
if (cs_algorithms[i].kx_algorithm == pcache->kx.priority[kx_idx] &&
cs_algorithms[i].block_algorithm == pcache->cipher.priority[cipher_idx] &&
cs_algorithms[i].mac_algorithm == pcache->mac.priority[mac_idx])
{
*sidx = i;
return 0;
}
}
return GNUTLS_E_UNKNOWN_CIPHER_SUITE;
}
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