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/*
* Copyright (C) 2010 Martin Willi
* Copyright (C) 2010 revosec AG
*
* This program 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 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program 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.
*/
/**
* @defgroup tls_crypto tls_crypto
* @{ @ingroup libtls
*/
#ifndef TLS_CRYPTO_H_
#define TLS_CRYPTO_H_
typedef struct tls_crypto_t tls_crypto_t;
typedef enum tls_cipher_suite_t tls_cipher_suite_t;
#include "tls.h"
#include "tls_prf.h"
#include "tls_protection.h"
#include <library.h>
#include <credentials/keys/private_key.h>
/**
* TLS cipher suites
*/
enum tls_cipher_suite_t {
TLS_NULL_WITH_NULL_NULL = 0x0000,
TLS_RSA_WITH_NULL_MD5 = 0x0001,
TLS_RSA_WITH_NULL_SHA = 0x0002,
TLS_RSA_EXPORT_WITH_RC4_40_MD5 = 0x0003,
TLS_RSA_WITH_RC4_128_MD5 = 0x0004,
TLS_RSA_WITH_RC4_128_SHA = 0x0005,
TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 = 0x0006,
TLS_RSA_WITH_IDEA_CBC_SHA = 0x0007,
TLS_RSA_EXPORT_WITH_DES40_CBC_SHA = 0x0008,
TLS_RSA_WITH_DES_CBC_SHA = 0x0009,
TLS_RSA_WITH_3DES_EDE_CBC_SHA = 0x000A,
TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA = 0x000B,
TLS_DH_DSS_WITH_DES_CBC_SHA = 0x000C,
TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA = 0x000D,
TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA = 0x000E,
TLS_DH_RSA_WITH_DES_CBC_SHA = 0x000F,
TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA = 0x0010,
TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA = 0x0011,
TLS_DHE_DSS_WITH_DES_CBC_SHA = 0x0012,
TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA = 0x0013,
TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA = 0x0014,
TLS_DHE_RSA_WITH_DES_CBC_SHA = 0x0015,
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA = 0x0016,
TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 = 0x0017,
TLS_DH_anon_WITH_RC4_128_MD5 = 0x0018,
TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA = 0x0019,
TLS_DH_anon_WITH_DES_CBC_SHA = 0x001A,
TLS_DH_anon_WITH_3DES_EDE_CBC_SHA = 0x001B,
TLS_KRB5_WITH_DES_CBC_SHA = 0x001E,
TLS_KRB5_WITH_3DES_EDE_CBC_SHA = 0x001F,
TLS_KRB5_WITH_RC4_128_SHA = 0x0020,
TLS_KRB5_WITH_IDEA_CBC_SHA = 0x0021,
TLS_KRB5_WITH_DES_CBC_MD5 = 0x0022,
TLS_KRB5_WITH_3DES_EDE_CBC_MD5 = 0x0023,
TLS_KRB5_WITH_RC4_128_MD5 = 0x0024,
TLS_KRB5_WITH_IDEA_CBC_MD5 = 0x0025,
TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA = 0x0026,
TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA = 0x0027,
TLS_KRB5_EXPORT_WITH_RC4_40_SHA = 0x0028,
TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5 = 0x0029,
TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5 = 0x002A,
TLS_KRB5_EXPORT_WITH_RC4_40_MD5 = 0x002B,
TLS_PSK_WITH_NULL_SHA = 0x002C,
TLS_DHE_PSK_WITH_NULL_SHA = 0x002D,
TLS_RSA_PSK_WITH_NULL_SHA = 0x002E,
TLS_RSA_WITH_AES_128_CBC_SHA = 0x002F,
TLS_DH_DSS_WITH_AES_128_CBC_SHA = 0x0030,
TLS_DH_RSA_WITH_AES_128_CBC_SHA = 0x0031,
TLS_DHE_DSS_WITH_AES_128_CBC_SHA = 0x0032,
TLS_DHE_RSA_WITH_AES_128_CBC_SHA = 0x0033,
TLS_DH_anon_WITH_AES_128_CBC_SHA = 0x0034,
TLS_RSA_WITH_AES_256_CBC_SHA = 0x0035,
TLS_DH_DSS_WITH_AES_256_CBC_SHA = 0x0036,
TLS_DH_RSA_WITH_AES_256_CBC_SHA = 0x0037,
TLS_DHE_DSS_WITH_AES_256_CBC_SHA = 0x0038,
TLS_DHE_RSA_WITH_AES_256_CBC_SHA = 0x0039,
TLS_DH_anon_WITH_AES_256_CBC_SHA = 0x003A,
TLS_RSA_WITH_NULL_SHA256 = 0x003B,
TLS_RSA_WITH_AES_128_CBC_SHA256 = 0x003C,
TLS_RSA_WITH_AES_256_CBC_SHA256 = 0x003D,
TLS_DH_DSS_WITH_AES_128_CBC_SHA256 = 0x003E,
TLS_DH_RSA_WITH_AES_128_CBC_SHA256 = 0x003F,
TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 = 0x0040,
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA = 0x0041,
TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA = 0x0042,
TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA = 0x0043,
TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA = 0x0044,
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA = 0x0045,
TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA = 0x0046,
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 = 0x0067,
TLS_DH_DSS_WITH_AES_256_CBC_SHA256 = 0x0068,
TLS_DH_RSA_WITH_AES_256_CBC_SHA256 = 0x0069,
TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 = 0x006A,
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 = 0x006B,
TLS_DH_anon_WITH_AES_128_CBC_SHA256 = 0x006C,
TLS_DH_anon_WITH_AES_256_CBC_SHA256 = 0x006D,
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA = 0x0084,
TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA = 0x0085,
TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA = 0x0086,
TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA = 0x0087,
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA = 0x0088,
TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA = 0x0089,
TLS_PSK_WITH_RC4_128_SHA = 0x008A,
TLS_PSK_WITH_3DES_EDE_CBC_SHA = 0x008B,
TLS_PSK_WITH_AES_128_CBC_SHA = 0x008C,
TLS_PSK_WITH_AES_256_CBC_SHA = 0x008D,
TLS_DHE_PSK_WITH_RC4_128_SHA = 0x008E,
TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA = 0x008F,
TLS_DHE_PSK_WITH_AES_128_CBC_SHA = 0x0090,
TLS_DHE_PSK_WITH_AES_256_CBC_SHA = 0x0091,
TLS_RSA_PSK_WITH_RC4_128_SHA = 0x0092,
TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA = 0x0093,
TLS_RSA_PSK_WITH_AES_128_CBC_SHA = 0x0094,
TLS_RSA_PSK_WITH_AES_256_CBC_SHA = 0x0095,
TLS_RSA_WITH_SEED_CBC_SHA = 0x0096,
TLS_DH_DSS_WITH_SEED_CBC_SHA = 0x0097,
TLS_DH_RSA_WITH_SEED_CBC_SHA = 0x0098,
TLS_DHE_DSS_WITH_SEED_CBC_SHA = 0x0099,
TLS_DHE_RSA_WITH_SEED_CBC_SHA = 0x009A,
TLS_DH_anon_WITH_SEED_CBC_SHA = 0x009B,
TLS_RSA_WITH_AES_128_GCM_SHA256 = 0x009C,
TLS_RSA_WITH_AES_256_GCM_SHA384 = 0x009D,
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 = 0x009E,
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 = 0x009F,
TLS_DH_RSA_WITH_AES_128_GCM_SHA256 = 0x00A0,
TLS_DH_RSA_WITH_AES_256_GCM_SHA384 = 0x00A1,
TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 = 0x00A2,
TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 = 0x00A3,
TLS_DH_DSS_WITH_AES_128_GCM_SHA256 = 0x00A4,
TLS_DH_DSS_WITH_AES_256_GCM_SHA384 = 0x00A5,
TLS_DH_anon_WITH_AES_128_GCM_SHA256 = 0x00A6,
TLS_DH_anon_WITH_AES_256_GCM_SHA384 = 0x00A7,
TLS_PSK_WITH_AES_128_GCM_SHA256 = 0x00A8,
TLS_PSK_WITH_AES_256_GCM_SHA384 = 0x00A9,
TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 = 0x00AA,
TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 = 0x00AB,
TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 = 0x00AC,
TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 = 0x00AD,
TLS_PSK_WITH_AES_128_CBC_SHA256 = 0x00AE,
TLS_PSK_WITH_AES_256_CBC_SHA384 = 0x00AF,
TLS_PSK_WITH_NULL_SHA256 = 0x00B0,
TLS_PSK_WITH_NULL_SHA384 = 0x00B1,
TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 = 0x00B2,
TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 = 0x00B3,
TLS_DHE_PSK_WITH_NULL_SHA256 = 0x00B4,
TLS_DHE_PSK_WITH_NULL_SHA384 = 0x00B5,
TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 = 0x00B6,
TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 = 0x00B7,
TLS_RSA_PSK_WITH_NULL_SHA256 = 0x00B8,
TLS_RSA_PSK_WITH_NULL_SHA384 = 0x00B9,
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 = 0x00BA,
TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256 = 0x00BB,
TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256 = 0x00BC,
TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256 = 0x00BD,
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 = 0x00BE,
TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256 = 0x00BF,
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 = 0x00C0,
TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256 = 0x00C1,
TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256 = 0x00C2,
TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256 = 0x00C3,
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 = 0x00C4,
TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256 = 0x00C5,
TLS_EMPTY_RENEGOTIATION_INFO_SCSV = 0x00FF,
TLS_ECDH_ECDSA_WITH_NULL_SHA = 0xC001,
TLS_ECDH_ECDSA_WITH_RC4_128_SHA = 0xC002,
TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA = 0xC003,
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA = 0xC004,
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA = 0xC005,
TLS_ECDHE_ECDSA_WITH_NULL_SHA = 0xC006,
TLS_ECDHE_ECDSA_WITH_RC4_128_SHA = 0xC007,
TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA = 0xC008,
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA = 0xC009,
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA = 0xC00A,
TLS_ECDH_RSA_WITH_NULL_SHA = 0xC00B,
TLS_ECDH_RSA_WITH_RC4_128_SHA = 0xC00C,
TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA = 0xC00D,
TLS_ECDH_RSA_WITH_AES_128_CBC_SHA = 0xC00E,
TLS_ECDH_RSA_WITH_AES_256_CBC_SHA = 0xC00F,
TLS_ECDHE_RSA_WITH_NULL_SHA = 0xC010,
TLS_ECDHE_RSA_WITH_RC4_128_SHA = 0xC011,
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA = 0xC012,
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA = 0xC013,
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA = 0xC014,
TLS_ECDH_anon_WITH_NULL_SHA = 0xC015,
TLS_ECDH_anon_WITH_RC4_128_SHA = 0xC016,
TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA = 0xC017,
TLS_ECDH_anon_WITH_AES_128_CBC_SHA = 0xC018,
TLS_ECDH_anon_WITH_AES_256_CBC_SHA = 0xC019,
TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA = 0xC01A,
TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA = 0xC01B,
TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA = 0xC01C,
TLS_SRP_SHA_WITH_AES_128_CBC_SHA = 0xC01D,
TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA = 0xC01E,
TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA = 0xC01F,
TLS_SRP_SHA_WITH_AES_256_CBC_SHA = 0xC020,
TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA = 0xC021,
TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA = 0xC022,
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 = 0xC023,
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 = 0xC024,
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 = 0xC025,
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 = 0xC026,
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 = 0xC027,
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 = 0xC028,
TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 = 0xC029,
TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 = 0xC02A,
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 = 0xC02B,
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 = 0xC02C,
TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 = 0xC02D,
TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 = 0xC02E,
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 = 0xC02F,
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 = 0xC030,
TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 = 0xC031,
TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 = 0xC032,
TLS_ECDHE_PSK_WITH_RC4_128_SHA = 0xC033,
TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA = 0xC034,
TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA = 0xC035,
TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA = 0xC036,
TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 = 0xC037,
TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 = 0xC038,
TLS_ECDHE_PSK_WITH_NULL_SHA = 0xC039,
TLS_ECDHE_PSK_WITH_NULL_SHA256 = 0xC03A,
TLS_ECDHE_PSK_WITH_NULL_SHA384 = 0xC03B
};
/**
* Enum names for tls_cipher_suite_t
*/
extern enum_name_t *tls_cipher_suite_names;
/**
* TLS crypto helper functions.
*/
struct tls_crypto_t {
/**
* Get a list of supported TLS cipher suites.
*
* @param suites list of suites, points to internal data
* @return number of suites returned
*/
int (*get_cipher_suites)(tls_crypto_t *this, tls_cipher_suite_t **suites);
/**
* Select and store a cipher suite from a given list of candidates.
*
* @param suites list of candidates to select from
* @param count number of suites
* @return selected suite, 0 if none acceptable
*/
tls_cipher_suite_t (*select_cipher_suite)(tls_crypto_t *this,
tls_cipher_suite_t *suites, int count);
/**
* Set the protection layer of the TLS stack to control it.
*
* @param protection protection layer to work on
*/
void (*set_protection)(tls_crypto_t *this, tls_protection_t *protection);
/**
* Store exchanged handshake data, used for cryptographic operations.
*
* @param type handshake sub type
* @param data data to append to handshake buffer
*/
void (*append_handshake)(tls_crypto_t *this,
tls_handshake_type_t type, chunk_t data);
/**
* Create a signature of the handshake data using a given private key.
*
* @param key private key to use for signature
* @param writer TLS writer to write signature to
* @return TRUE if signature create successfully
*/
bool (*sign_handshake)(tls_crypto_t *this, private_key_t *key,
tls_writer_t *writer);
/**
* Verify the signature over handshake data using a given public key.
*
* @param key public key to verify signature with
* @param reader TLS reader to read signature from
* @return TRUE if signature valid
*/
bool (*verify_handshake)(tls_crypto_t *this, public_key_t *key,
tls_reader_t *reader);
/**
* Calculate the data of a TLS finished message.
*
* @param label ASCII label to use for calculation
* @param out buffer to write finished data to
* @return TRUE if calculation successful
*/
bool (*calculate_finished)(tls_crypto_t *this, char *label, char out[12]);
/**
* Derive the master secret, MAC and encryption keys.
*
* @param premaster premaster secret
* @param client_random random data from client hello
* @param server_random random data from server hello
*/
void (*derive_secrets)(tls_crypto_t *this, chunk_t premaster,
chunk_t client_random, chunk_t server_random);
/**
* Change the cipher used at protection layer.
*
* @param inbound TRUE to change inbound cipher, FALSE for outbound
*/
void (*change_cipher)(tls_crypto_t *this, bool inbound);
/**
* Derive the EAP-TLS MSK.
*
* @param client_random random data from client hello
* @param server_random random data from server hello
*/
void (*derive_eap_msk)(tls_crypto_t *this,
chunk_t client_random, chunk_t server_random);
/**
* Get the MSK to use in EAP-TLS.
*
* @return MSK, points to internal data
*/
chunk_t (*get_eap_msk)(tls_crypto_t *this);
/**
* Destroy a tls_crypto_t.
*/
void (*destroy)(tls_crypto_t *this);
};
/**
* Create a tls_crypto instance.
*/
tls_crypto_t *tls_crypto_create(tls_t *tls);
#endif /** TLS_CRYPTO_H_ @}*/
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