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hostap/src/tls/tlsv1_common.h
Jouni Malinen 129b9b991a TLS: Share a helper function for verifying Signature 
This same design is used in both the server and the client roles in the
internal TLS implementation. Instead of duplicated implementation, use a
helper function.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-03-09 17:11:58 +02:00

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/*
* TLSv1 common definitions
* Copyright (c) 2006-2014, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef TLSV1_COMMON_H
#define TLSV1_COMMON_H
#include "crypto/crypto.h"
#define TLS_VERSION_1 0x0301 /* TLSv1 */
#define TLS_VERSION_1_1 0x0302 /* TLSv1.1 */
#define TLS_VERSION_1_2 0x0303 /* TLSv1.2 */
#ifdef CONFIG_TLSV12
#define TLS_VERSION TLS_VERSION_1_2
#else /* CONFIG_TLSV12 */
#ifdef CONFIG_TLSV11
#define TLS_VERSION TLS_VERSION_1_1
#else /* CONFIG_TLSV11 */
#define TLS_VERSION TLS_VERSION_1
#endif /* CONFIG_TLSV11 */
#endif /* CONFIG_TLSV12 */
#define TLS_RANDOM_LEN 32
#define TLS_PRE_MASTER_SECRET_LEN 48
#define TLS_MASTER_SECRET_LEN 48
#define TLS_SESSION_ID_MAX_LEN 32
#define TLS_VERIFY_DATA_LEN 12
/* HandshakeType */
enum {
TLS_HANDSHAKE_TYPE_HELLO_REQUEST = 0,
TLS_HANDSHAKE_TYPE_CLIENT_HELLO = 1,
TLS_HANDSHAKE_TYPE_SERVER_HELLO = 2,
TLS_HANDSHAKE_TYPE_NEW_SESSION_TICKET = 4 /* RFC 4507 */,
TLS_HANDSHAKE_TYPE_CERTIFICATE = 11,
TLS_HANDSHAKE_TYPE_SERVER_KEY_EXCHANGE = 12,
TLS_HANDSHAKE_TYPE_CERTIFICATE_REQUEST = 13,
TLS_HANDSHAKE_TYPE_SERVER_HELLO_DONE = 14,
TLS_HANDSHAKE_TYPE_CERTIFICATE_VERIFY = 15,
TLS_HANDSHAKE_TYPE_CLIENT_KEY_EXCHANGE = 16,
TLS_HANDSHAKE_TYPE_FINISHED = 20,
TLS_HANDSHAKE_TYPE_CERTIFICATE_URL = 21 /* RFC 4366 */,
TLS_HANDSHAKE_TYPE_CERTIFICATE_STATUS = 22 /* RFC 4366 */
};
/* CipherSuite */
#define TLS_NULL_WITH_NULL_NULL 0x0000 /* RFC 2246 */
#define TLS_RSA_WITH_NULL_MD5 0x0001 /* RFC 2246 */
#define TLS_RSA_WITH_NULL_SHA 0x0002 /* RFC 2246 */
#define TLS_RSA_EXPORT_WITH_RC4_40_MD5 0x0003 /* RFC 2246 */
#define TLS_RSA_WITH_RC4_128_MD5 0x0004 /* RFC 2246 */
#define TLS_RSA_WITH_RC4_128_SHA 0x0005 /* RFC 2246 */
#define TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 0x0006 /* RFC 2246 */
#define TLS_RSA_WITH_IDEA_CBC_SHA 0x0007 /* RFC 2246 */
#define TLS_RSA_EXPORT_WITH_DES40_CBC_SHA 0x0008 /* RFC 2246 */
#define TLS_RSA_WITH_DES_CBC_SHA 0x0009 /* RFC 2246 */
#define TLS_RSA_WITH_3DES_EDE_CBC_SHA 0x000A /* RFC 2246 */
#define TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA 0x000B /* RFC 2246 */
#define TLS_DH_DSS_WITH_DES_CBC_SHA 0x000C /* RFC 2246 */
#define TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA 0x000D /* RFC 2246 */
#define TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA 0x000E /* RFC 2246 */
#define TLS_DH_RSA_WITH_DES_CBC_SHA 0x000F /* RFC 2246 */
#define TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA 0x0010 /* RFC 2246 */
#define TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA 0x0011 /* RFC 2246 */
#define TLS_DHE_DSS_WITH_DES_CBC_SHA 0x0012 /* RFC 2246 */
#define TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA 0x0013 /* RFC 2246 */
#define TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA 0x0014 /* RFC 2246 */
#define TLS_DHE_RSA_WITH_DES_CBC_SHA 0x0015 /* RFC 2246 */
#define TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA 0x0016 /* RFC 2246 */
#define TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 0x0017 /* RFC 2246 */
#define TLS_DH_anon_WITH_RC4_128_MD5 0x0018 /* RFC 2246 */
#define TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA 0x0019 /* RFC 2246 */
#define TLS_DH_anon_WITH_DES_CBC_SHA 0x001A /* RFC 2246 */
#define TLS_DH_anon_WITH_3DES_EDE_CBC_SHA 0x001B /* RFC 2246 */
#define TLS_RSA_WITH_AES_128_CBC_SHA 0x002F /* RFC 3268 */
#define TLS_DH_DSS_WITH_AES_128_CBC_SHA 0x0030 /* RFC 3268 */
#define TLS_DH_RSA_WITH_AES_128_CBC_SHA 0x0031 /* RFC 3268 */
#define TLS_DHE_DSS_WITH_AES_128_CBC_SHA 0x0032 /* RFC 3268 */
#define TLS_DHE_RSA_WITH_AES_128_CBC_SHA 0x0033 /* RFC 3268 */
#define TLS_DH_anon_WITH_AES_128_CBC_SHA 0x0034 /* RFC 3268 */
#define TLS_RSA_WITH_AES_256_CBC_SHA 0x0035 /* RFC 3268 */
#define TLS_DH_DSS_WITH_AES_256_CBC_SHA 0x0036 /* RFC 3268 */
#define TLS_DH_RSA_WITH_AES_256_CBC_SHA 0x0037 /* RFC 3268 */
#define TLS_DHE_DSS_WITH_AES_256_CBC_SHA 0x0038 /* RFC 3268 */
#define TLS_DHE_RSA_WITH_AES_256_CBC_SHA 0x0039 /* RFC 3268 */
#define TLS_DH_anon_WITH_AES_256_CBC_SHA 0x003A /* RFC 3268 */
#define TLS_RSA_WITH_NULL_SHA256 0x003B /* RFC 5246 */
#define TLS_RSA_WITH_AES_128_CBC_SHA256 0x003C /* RFC 5246 */
#define TLS_RSA_WITH_AES_256_CBC_SHA256 0x003D /* RFC 5246 */
#define TLS_DH_DSS_WITH_AES_128_CBC_SHA256 0x003E /* RFC 5246 */
#define TLS_DH_RSA_WITH_AES_128_CBC_SHA256 0x003F /* RFC 5246 */
#define TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 0x0040 /* RFC 5246 */
#define TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 0x0067 /* RFC 5246 */
#define TLS_DH_DSS_WITH_AES_256_CBC_SHA256 0x0068 /* RFC 5246 */
#define TLS_DH_RSA_WITH_AES_256_CBC_SHA256 0x0069 /* RFC 5246 */
#define TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 0x006A /* RFC 5246 */
#define TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 0x006B /* RFC 5246 */
#define TLS_DH_anon_WITH_AES_128_CBC_SHA256 0x006C /* RFC 5246 */
#define TLS_DH_anon_WITH_AES_256_CBC_SHA256 0x006D /* RFC 5246 */
/* CompressionMethod */
#define TLS_COMPRESSION_NULL 0
/* HashAlgorithm */
enum {
TLS_HASH_ALG_NONE = 0,
TLS_HASH_ALG_MD5 = 1,
TLS_HASH_ALG_SHA1 = 2,
TLS_HASH_ALG_SHA224 = 3,
TLS_HASH_ALG_SHA256 = 4,
TLS_HASH_ALG_SHA384 = 5,
TLS_HASH_ALG_SHA512 = 6
};
/* SignatureAlgorithm */
enum {
TLS_SIGN_ALG_ANONYMOUS = 0,
TLS_SIGN_ALG_RSA = 1,
TLS_SIGN_ALG_DSA = 2,
TLS_SIGN_ALG_ECDSA = 3,
};
/* AlertLevel */
#define TLS_ALERT_LEVEL_WARNING 1
#define TLS_ALERT_LEVEL_FATAL 2
/* AlertDescription */
#define TLS_ALERT_CLOSE_NOTIFY 0
#define TLS_ALERT_UNEXPECTED_MESSAGE 10
#define TLS_ALERT_BAD_RECORD_MAC 20
#define TLS_ALERT_DECRYPTION_FAILED 21
#define TLS_ALERT_RECORD_OVERFLOW 22
#define TLS_ALERT_DECOMPRESSION_FAILURE 30
#define TLS_ALERT_HANDSHAKE_FAILURE 40
#define TLS_ALERT_BAD_CERTIFICATE 42
#define TLS_ALERT_UNSUPPORTED_CERTIFICATE 43
#define TLS_ALERT_CERTIFICATE_REVOKED 44
#define TLS_ALERT_CERTIFICATE_EXPIRED 45
#define TLS_ALERT_CERTIFICATE_UNKNOWN 46
#define TLS_ALERT_ILLEGAL_PARAMETER 47
#define TLS_ALERT_UNKNOWN_CA 48
#define TLS_ALERT_ACCESS_DENIED 49
#define TLS_ALERT_DECODE_ERROR 50
#define TLS_ALERT_DECRYPT_ERROR 51
#define TLS_ALERT_EXPORT_RESTRICTION 60
#define TLS_ALERT_PROTOCOL_VERSION 70
#define TLS_ALERT_INSUFFICIENT_SECURITY 71
#define TLS_ALERT_INTERNAL_ERROR 80
#define TLS_ALERT_USER_CANCELED 90
#define TLS_ALERT_NO_RENEGOTIATION 100
#define TLS_ALERT_UNSUPPORTED_EXTENSION 110 /* RFC 4366 */
#define TLS_ALERT_CERTIFICATE_UNOBTAINABLE 111 /* RFC 4366 */
#define TLS_ALERT_UNRECOGNIZED_NAME 112 /* RFC 4366 */
#define TLS_ALERT_BAD_CERTIFICATE_STATUS_RESPONSE 113 /* RFC 4366 */
#define TLS_ALERT_BAD_CERTIFICATE_HASH_VALUE 114 /* RFC 4366 */
/* ChangeCipherSpec */
enum {
TLS_CHANGE_CIPHER_SPEC = 1
};
/* TLS Extensions */
#define TLS_EXT_SERVER_NAME 0 /* RFC 4366 */
#define TLS_EXT_MAX_FRAGMENT_LENGTH 1 /* RFC 4366 */
#define TLS_EXT_CLIENT_CERTIFICATE_URL 2 /* RFC 4366 */
#define TLS_EXT_TRUSTED_CA_KEYS 3 /* RFC 4366 */
#define TLS_EXT_TRUNCATED_HMAC 4 /* RFC 4366 */
#define TLS_EXT_STATUS_REQUEST 5 /* RFC 4366 */
#define TLS_EXT_SESSION_TICKET 35 /* RFC 4507 */
#define TLS_EXT_PAC_OPAQUE TLS_EXT_SESSION_TICKET /* EAP-FAST terminology */
typedef enum {
TLS_KEY_X_NULL,
TLS_KEY_X_RSA,
TLS_KEY_X_RSA_EXPORT,
TLS_KEY_X_DH_DSS_EXPORT,
TLS_KEY_X_DH_DSS,
TLS_KEY_X_DH_RSA_EXPORT,
TLS_KEY_X_DH_RSA,
TLS_KEY_X_DHE_DSS_EXPORT,
TLS_KEY_X_DHE_DSS,
TLS_KEY_X_DHE_RSA_EXPORT,
TLS_KEY_X_DHE_RSA,
TLS_KEY_X_DH_anon_EXPORT,
TLS_KEY_X_DH_anon
} tls_key_exchange;
typedef enum {
TLS_CIPHER_NULL,
TLS_CIPHER_RC4_40,
TLS_CIPHER_RC4_128,
TLS_CIPHER_RC2_CBC_40,
TLS_CIPHER_IDEA_CBC,
TLS_CIPHER_DES40_CBC,
TLS_CIPHER_DES_CBC,
TLS_CIPHER_3DES_EDE_CBC,
TLS_CIPHER_AES_128_CBC,
TLS_CIPHER_AES_256_CBC
} tls_cipher;
typedef enum {
TLS_HASH_NULL,
TLS_HASH_MD5,
TLS_HASH_SHA,
TLS_HASH_SHA256
} tls_hash;
struct tls_cipher_suite {
u16 suite;
tls_key_exchange key_exchange;
tls_cipher cipher;
tls_hash hash;
};
typedef enum {
TLS_CIPHER_STREAM,
TLS_CIPHER_BLOCK
} tls_cipher_type;
struct tls_cipher_data {
tls_cipher cipher;
tls_cipher_type type;
size_t key_material;
size_t expanded_key_material;
size_t block_size; /* also iv_size */
enum crypto_cipher_alg alg;
};
struct tls_verify_hash {
struct crypto_hash *md5_client;
struct crypto_hash *sha1_client;
struct crypto_hash *sha256_client;
struct crypto_hash *md5_server;
struct crypto_hash *sha1_server;
struct crypto_hash *sha256_server;
struct crypto_hash *md5_cert;
struct crypto_hash *sha1_cert;
struct crypto_hash *sha256_cert;
};
const struct tls_cipher_suite * tls_get_cipher_suite(u16 suite);
const struct tls_cipher_data * tls_get_cipher_data(tls_cipher cipher);
int tls_server_key_exchange_allowed(tls_cipher cipher);
int tls_parse_cert(const u8 *buf, size_t len, struct crypto_public_key **pk);
int tls_verify_hash_init(struct tls_verify_hash *verify);
void tls_verify_hash_add(struct tls_verify_hash *verify, const u8 *buf,
size_t len);
void tls_verify_hash_free(struct tls_verify_hash *verify);
int tls_version_ok(u16 ver);
const char * tls_version_str(u16 ver);
int tls_prf(u16 ver, const u8 *secret, size_t secret_len, const char *label,
const u8 *seed, size_t seed_len, u8 *out, size_t outlen);
int tlsv12_key_x_server_params_hash(u16 tls_version, const u8 *client_random,
const u8 *server_random,
const u8 *server_params,
size_t server_params_len, u8 *hash);
int tls_key_x_server_params_hash(u16 tls_version, const u8 *client_random,
const u8 *server_random,
const u8 *server_params,
size_t server_params_len, u8 *hash);
int tls_verify_signature(u16 tls_version, struct crypto_public_key *pk,
const u8 *data, size_t data_len,
const u8 *pos, size_t len, u8 *alert);
#endif /* TLSV1_COMMON_H */
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