2 * Copyright (C) 2010 Martin Willi
3 * Copyright (C) 2010 revosec AG
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 #include "tls_crypto.h"
20 ENUM_BEGIN(tls_cipher_suite_names
, TLS_NULL_WITH_NULL_NULL
,
21 TLS_DH_anon_WITH_3DES_EDE_CBC_SHA
,
22 "TLS_NULL_WITH_NULL_NULL",
23 "TLS_RSA_WITH_NULL_MD5",
24 "TLS_RSA_WITH_NULL_SHA",
25 "TLS_RSA_EXPORT_WITH_RC4_40_MD5",
26 "TLS_RSA_WITH_RC4_128_MD5",
27 "TLS_RSA_WITH_RC4_128_SHA",
28 "TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5",
29 "TLS_RSA_WITH_IDEA_CBC_SHA",
30 "TLS_RSA_EXPORT_WITH_DES40_CBC_SHA",
31 "TLS_RSA_WITH_DES_CBC_SHA",
32 "TLS_RSA_WITH_3DES_EDE_CBC_SHA",
33 "TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA",
34 "TLS_DH_DSS_WITH_DES_CBC_SHA",
35 "TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA",
36 "TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA",
37 "TLS_DH_RSA_WITH_DES_CBC_SHA",
38 "TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA",
39 "TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA",
40 "TLS_DHE_DSS_WITH_DES_CBC_SHA",
41 "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA",
42 "TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA",
43 "TLS_DHE_RSA_WITH_DES_CBC_SHA",
44 "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA",
45 "TLS_DH_anon_EXPORT_WITH_RC4_40_MD5",
46 "TLS_DH_anon_WITH_RC4_128_MD5",
47 "TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA",
48 "TLS_DH_anon_WITH_DES_CBC_SHA",
49 "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA");
50 ENUM_NEXT(tls_cipher_suite_names
, TLS_KRB5_WITH_DES_CBC_SHA
,
51 TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA
,
52 TLS_DH_anon_WITH_3DES_EDE_CBC_SHA
,
53 "TLS_KRB5_WITH_DES_CBC_SHA",
54 "TLS_KRB5_WITH_3DES_EDE_CBC_SHA",
55 "TLS_KRB5_WITH_RC4_128_SHA",
56 "TLS_KRB5_WITH_IDEA_CBC_SHA",
57 "TLS_KRB5_WITH_DES_CBC_MD5",
58 "TLS_KRB5_WITH_3DES_EDE_CBC_MD5",
59 "TLS_KRB5_WITH_RC4_128_MD5",
60 "TLS_KRB5_WITH_IDEA_CBC_MD5",
61 "TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA",
62 "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA",
63 "TLS_KRB5_EXPORT_WITH_RC4_40_SHA",
64 "TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5",
65 "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5",
66 "TLS_KRB5_EXPORT_WITH_RC4_40_MD5",
67 "TLS_PSK_WITH_NULL_SHA",
68 "TLS_DHE_PSK_WITH_NULL_SHA",
69 "TLS_RSA_PSK_WITH_NULL_SHA",
70 "TLS_RSA_WITH_AES_128_CBC_SHA",
71 "TLS_DH_DSS_WITH_AES_128_CBC_SHA",
72 "TLS_DH_RSA_WITH_AES_128_CBC_SHA",
73 "TLS_DHE_DSS_WITH_AES_128_CBC_SHA",
74 "TLS_DHE_RSA_WITH_AES_128_CBC_SHA",
75 "TLS_DH_anon_WITH_AES_128_CBC_SHA",
76 "TLS_RSA_WITH_AES_256_CBC_SHA",
77 "TLS_DH_DSS_WITH_AES_256_CBC_SHA",
78 "TLS_DH_RSA_WITH_AES_256_CBC_SHA",
79 "TLS_DHE_DSS_WITH_AES_256_CBC_SHA",
80 "TLS_DHE_RSA_WITH_AES_256_CBC_SHA",
81 "TLS_DH_anon_WITH_AES_256_CBC_SHA",
82 "TLS_RSA_WITH_NULL_SHA256",
83 "TLS_RSA_WITH_AES_128_CBC_SHA256 ",
84 "TLS_RSA_WITH_AES_256_CBC_SHA256",
85 "TLS_DH_DSS_WITH_AES_128_CBC_SHA256",
86 "TLS_DH_RSA_WITH_AES_128_CBC_SHA256",
87 "TLS_DHE_DSS_WITH_AES_128_CBC_SHA256",
88 "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA",
89 "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA",
90 "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA",
91 "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA",
92 "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA",
93 "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA");
94 ENUM_NEXT(tls_cipher_suite_names
, TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
,
95 TLS_DH_anon_WITH_AES_256_CBC_SHA256
,
96 TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA
,
97 "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256",
98 "TLS_DH_DSS_WITH_AES_256_CBC_SHA256",
99 "TLS_DH_RSA_WITH_AES_256_CBC_SHA256",
100 "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256",
101 "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256",
102 "TLS_DH_anon_WITH_AES_128_CBC_SHA256",
103 "TLS_DH_anon_WITH_AES_256_CBC_SHA256");
104 ENUM_NEXT(tls_cipher_suite_names
, TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
,
105 TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256
,
106 TLS_DH_anon_WITH_AES_256_CBC_SHA256
,
107 "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA",
108 "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA",
109 "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA",
110 "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA",
111 "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA",
112 "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA",
113 "TLS_PSK_WITH_RC4_128_SHA",
114 "TLS_PSK_WITH_3DES_EDE_CBC_SHA2",
115 "TLS_PSK_WITH_AES_128_CBC_SHA",
116 "TLS_PSK_WITH_AES_256_CBC_SHA",
117 "TLS_DHE_PSK_WITH_RC4_128_SHA",
118 "TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA",
119 "TLS_DHE_PSK_WITH_AES_128_CBC_SHA",
120 "TLS_DHE_PSK_WITH_AES_256_CBC_SHA2",
121 "TLS_RSA_PSK_WITH_RC4_128_SHA",
122 "TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA",
123 "TLS_RSA_PSK_WITH_AES_128_CBC_SHA",
124 "TLS_RSA_PSK_WITH_AES_256_CBC_SHA",
125 "TLS_RSA_WITH_SEED_CBC_SHA",
126 "TLS_DH_DSS_WITH_SEED_CBC_SHA",
127 "TLS_DH_RSA_WITH_SEED_CBC_SHA",
128 "TLS_DHE_DSS_WITH_SEED_CBC_SHA",
129 "TLS_DHE_RSA_WITH_SEED_CBC_SHA",
130 "TLS_DH_anon_WITH_SEED_CBC_SHA",
131 "TLS_RSA_WITH_AES_128_GCM_SHA256",
132 "TLS_RSA_WITH_AES_256_GCM_SHA384",
133 "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256",
134 "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384",
135 "TLS_DH_RSA_WITH_AES_128_GCM_SHA256",
136 "TLS_DH_RSA_WITH_AES_256_GCM_SHA384",
137 "TLS_DHE_DSS_WITH_AES_128_GCM_SHA256",
138 "TLS_DHE_DSS_WITH_AES_256_GCM_SHA384",
139 "TLS_DH_DSS_WITH_AES_128_GCM_SHA256",
140 "TLS_DH_DSS_WITH_AES_256_GCM_SHA384",
141 "TLS_DH_anon_WITH_AES_128_GCM_SHA256",
142 "TLS_DH_anon_WITH_AES_256_GCM_SHA384",
143 "TLS_PSK_WITH_AES_128_GCM_SHA256",
144 "TLS_PSK_WITH_AES_256_GCM_SHA384",
145 "TLS_DHE_PSK_WITH_AES_128_GCM_SHA256",
146 "TLS_DHE_PSK_WITH_AES_256_GCM_SHA384",
147 "TLS_RSA_PSK_WITH_AES_128_GCM_SHA256",
148 "TLS_RSA_PSK_WITH_AES_256_GCM_SHA384",
149 "TLS_PSK_WITH_AES_128_CBC_SHA256",
150 "TLS_PSK_WITH_AES_256_CBC_SHA384",
151 "TLS_PSK_WITH_NULL_SHA256",
152 "TLS_PSK_WITH_NULL_SHA384",
153 "TLS_DHE_PSK_WITH_AES_128_CBC_SHA256",
154 "TLS_DHE_PSK_WITH_AES_256_CBC_SHA384",
155 "TLS_DHE_PSK_WITH_NULL_SHA256",
156 "TLS_DHE_PSK_WITH_NULL_SHA384",
157 "TLS_RSA_PSK_WITH_AES_128_CBC_SHA256",
158 "TLS_RSA_PSK_WITH_AES_256_CBC_SHA384",
159 "TLS_RSA_PSK_WITH_NULL_SHA256",
160 "TLS_RSA_PSK_WITH_NULL_SHA384",
161 "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256",
162 "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256",
163 "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256",
164 "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256",
165 "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256",
166 "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256",
167 "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256",
168 "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256",
169 "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256",
170 "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256",
171 "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256",
172 "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256");
173 ENUM_NEXT(tls_cipher_suite_names
, TLS_EMPTY_RENEGOTIATION_INFO_SCSV
,
174 TLS_EMPTY_RENEGOTIATION_INFO_SCSV
,
175 TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256
,
176 "TLS_EMPTY_RENEGOTIATION_INFO_SCSV");
177 ENUM_NEXT(tls_cipher_suite_names
, TLS_ECDH_ECDSA_WITH_NULL_SHA
,
178 TLS_ECDHE_PSK_WITH_NULL_SHA384
,
179 TLS_EMPTY_RENEGOTIATION_INFO_SCSV
,
180 "TLS_ECDH_ECDSA_WITH_NULL_SHA",
181 "TLS_ECDH_ECDSA_WITH_RC4_128_SHA",
182 "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA",
183 "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA",
184 "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA",
185 "TLS_ECDHE_ECDSA_WITH_NULL_SHA",
186 "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA",
187 "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA",
188 "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",
189 "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA",
190 "TLS_ECDH_RSA_WITH_NULL_SHA",
191 "TLS_ECDH_RSA_WITH_RC4_128_SHA",
192 "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA",
193 "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA",
194 "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA",
195 "TLS_ECDHE_RSA_WITH_NULL_SHA",
196 "TLS_ECDHE_RSA_WITH_RC4_128_SHA",
197 "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA",
198 "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
199 "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
200 "TLS_ECDH_anon_WITH_NULL_SHA",
201 "TLS_ECDH_anon_WITH_RC4_128_SHA",
202 "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA",
203 "TLS_ECDH_anon_WITH_AES_128_CBC_SHA",
204 "TLS_ECDH_anon_WITH_AES_256_CBC_SHA",
205 "TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA",
206 "TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA",
207 "TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA",
208 "TLS_SRP_SHA_WITH_AES_128_CBC_SHA",
209 "TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA",
210 "TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA",
211 "TLS_SRP_SHA_WITH_AES_256_CBC_SHA",
212 "TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA",
213 "TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA",
214 "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",
215 "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384",
216 "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256",
217 "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384",
218 "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",
219 "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384",
220 "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256",
221 "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384",
222 "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
223 "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
224 "TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256",
225 "TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384",
226 "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
227 "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
228 "TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256",
229 "TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384",
230 "TLS_ECDHE_PSK_WITH_RC4_128_SHA",
231 "TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA",
232 "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA",
233 "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA",
234 "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256",
235 "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384",
236 "TLS_ECDHE_PSK_WITH_NULL_SHA",
237 "TLS_ECDHE_PSK_WITH_NULL_SHA256",
238 "TLS_ECDHE_PSK_WITH_NULL_SHA384");
239 ENUM_END(tls_cipher_suite_names
, TLS_ECDHE_PSK_WITH_NULL_SHA384
);
241 ENUM(tls_hash_algorithm_names
, TLS_HASH_NONE
, TLS_HASH_SHA512
,
251 ENUM(tls_signature_algorithm_names
, TLS_SIG_RSA
, TLS_SIG_ECDSA
,
257 ENUM_BEGIN(tls_client_certificate_type_names
,
258 TLS_RSA_SIGN
, TLS_DSS_EPHEMERAL_DH
,
265 ENUM_NEXT(tls_client_certificate_type_names
,
266 TLS_FORTEZZA_DMS
, TLS_FORTEZZA_DMS
, TLS_DSS_EPHEMERAL_DH
,
268 ENUM_NEXT(tls_client_certificate_type_names
,
269 TLS_ECDSA_SIGN
, TLS_ECDSA_FIXED_ECDH
, TLS_FORTEZZA_DMS
,
273 ENUM_END(tls_client_certificate_type_names
, TLS_ECDSA_FIXED_ECDH
);
275 ENUM(tls_ecc_curve_type_names
, TLS_ECC_EXPLICIT_PRIME
, TLS_ECC_NAMED_CURVE
,
281 ENUM(tls_named_curve_names
, TLS_SECT163K1
, TLS_SECP521R1
,
309 ENUM(tls_ansi_point_format_names
, TLS_ANSI_COMPRESSED
, TLS_ANSI_HYBRID_Y
,
318 ENUM(tls_ec_point_format_names
,
319 TLS_EC_POINT_UNCOMPRESSED
, TLS_EC_POINT_ANSIX962_COMPRESSED_CHAR2
,
321 "ansiX962 compressed prime",
322 "ansiX962 compressed char2",
325 typedef struct private_tls_crypto_t private_tls_crypto_t
;
328 * Private data of an tls_crypto_t object.
330 struct private_tls_crypto_t
{
333 * Public tls_crypto_t interface.
340 tls_protection_t
*protection
;
343 * List of supported/acceptable cipher suites
345 tls_cipher_suite_t
*suites
;
348 * Number of supported suites
353 * Selected cipher suite
355 tls_cipher_suite_t suite
;
373 * All handshake data concatentated
378 * Connection state TLS PRF
383 * Signer instance for inbound traffic
388 * Signer instance for outbound traffic
390 signer_t
*signer_out
;
393 * Crypter instance for inbound traffic
395 crypter_t
*crypter_in
;
398 * Crypter instance for outbound traffic
400 crypter_t
*crypter_out
;
403 * IV for input decryption, if < TLSv1.2
408 * IV for output decryption, if < TLSv1.2
418 * ASCII string constant used as seed for EAP-[T]TLS MSK PRF
424 tls_cipher_suite_t suite
;
426 diffie_hellman_group_t dh
;
427 hash_algorithm_t hash
;
428 pseudo_random_function_t prf
;
429 integrity_algorithm_t mac
;
430 encryption_algorithm_t encr
;
435 * Mapping suites to a set of algorithms
437 static suite_algs_t suite_algs
[] = {
438 { TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
,
439 KEY_ECDSA
, ECP_256_BIT
,
440 HASH_SHA1
, PRF_HMAC_SHA1
,
441 AUTH_HMAC_SHA1_160
, ENCR_AES_CBC
, 16
443 { TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
,
444 KEY_ECDSA
, ECP_256_BIT
,
445 HASH_SHA256
, PRF_HMAC_SHA2_256
,
446 AUTH_HMAC_SHA2_256_256
, ENCR_AES_CBC
, 16
448 { TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
,
449 KEY_ECDSA
, ECP_384_BIT
,
450 HASH_SHA1
, PRF_HMAC_SHA1
,
451 AUTH_HMAC_SHA1_160
, ENCR_AES_CBC
, 32
453 { TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
,
454 KEY_ECDSA
, ECP_384_BIT
,
455 HASH_SHA384
, PRF_HMAC_SHA2_384
,
456 AUTH_HMAC_SHA2_384_384
, ENCR_AES_CBC
, 32
458 { TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
,
459 KEY_RSA
, ECP_256_BIT
,
460 HASH_SHA1
, PRF_HMAC_SHA1
,
461 AUTH_HMAC_SHA1_160
, ENCR_AES_CBC
, 16
463 { TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
,
464 KEY_RSA
, ECP_256_BIT
,
465 HASH_SHA256
, PRF_HMAC_SHA2_256
,
466 AUTH_HMAC_SHA2_256_256
, ENCR_AES_CBC
, 16
468 { TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
,
469 KEY_RSA
, ECP_384_BIT
,
470 HASH_SHA1
, PRF_HMAC_SHA1
,
471 AUTH_HMAC_SHA1_160
, ENCR_AES_CBC
, 32
473 { TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
,
474 KEY_RSA
, ECP_384_BIT
,
475 HASH_SHA384
, PRF_HMAC_SHA2_384
,
476 AUTH_HMAC_SHA2_384_384
, ENCR_AES_CBC
, 32
478 { TLS_DHE_RSA_WITH_AES_128_CBC_SHA
,
479 KEY_RSA
, MODP_2048_BIT
,
480 HASH_SHA1
, PRF_HMAC_SHA1
,
481 AUTH_HMAC_SHA1_160
, ENCR_AES_CBC
, 16
483 { TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
,
484 KEY_RSA
, MODP_3072_BIT
,
485 HASH_SHA256
, PRF_HMAC_SHA2_256
,
486 AUTH_HMAC_SHA2_256_256
, ENCR_AES_CBC
, 16
488 { TLS_DHE_RSA_WITH_AES_256_CBC_SHA
,
489 KEY_RSA
, MODP_3072_BIT
,
490 HASH_SHA1
, PRF_HMAC_SHA1
,
491 AUTH_HMAC_SHA1_160
, ENCR_AES_CBC
, 32
493 { TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
,
494 KEY_RSA
, MODP_4096_BIT
,
495 HASH_SHA256
, PRF_HMAC_SHA2_256
,
496 AUTH_HMAC_SHA2_256_256
, ENCR_AES_CBC
, 32
498 { TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
,
499 KEY_RSA
, MODP_2048_BIT
,
500 HASH_SHA1
, PRF_HMAC_SHA1
,
501 AUTH_HMAC_SHA1_160
, ENCR_CAMELLIA_CBC
, 16
503 { TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
,
504 KEY_RSA
, MODP_3072_BIT
,
505 HASH_SHA256
, PRF_HMAC_SHA2_256
,
506 AUTH_HMAC_SHA2_256_256
, ENCR_CAMELLIA_CBC
, 16
508 { TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
,
509 KEY_RSA
, MODP_3072_BIT
,
510 HASH_SHA1
, PRF_HMAC_SHA1
,
511 AUTH_HMAC_SHA1_160
, ENCR_CAMELLIA_CBC
, 32
513 { TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
,
514 KEY_RSA
, MODP_4096_BIT
,
515 HASH_SHA256
, PRF_HMAC_SHA2_256
,
516 AUTH_HMAC_SHA2_256_256
, ENCR_CAMELLIA_CBC
, 32
518 { TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
,
519 KEY_RSA
, MODP_2048_BIT
,
520 HASH_SHA1
, PRF_HMAC_SHA1
,
521 AUTH_HMAC_SHA1_160
, ENCR_3DES
, 0
523 { TLS_RSA_WITH_AES_128_CBC_SHA
,
525 HASH_SHA1
, PRF_HMAC_SHA1
,
526 AUTH_HMAC_SHA1_160
, ENCR_AES_CBC
, 16
528 { TLS_RSA_WITH_AES_128_CBC_SHA256
,
530 HASH_SHA256
, PRF_HMAC_SHA2_256
,
531 AUTH_HMAC_SHA2_256_256
, ENCR_AES_CBC
, 16
533 { TLS_RSA_WITH_AES_256_CBC_SHA
,
535 HASH_SHA1
, PRF_HMAC_SHA1
,
536 AUTH_HMAC_SHA1_160
, ENCR_AES_CBC
, 32
538 { TLS_RSA_WITH_AES_256_CBC_SHA256
,
540 HASH_SHA256
, PRF_HMAC_SHA2_256
,
541 AUTH_HMAC_SHA2_256_256
, ENCR_AES_CBC
, 32
543 { TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
,
545 HASH_SHA1
, PRF_HMAC_SHA1
,
546 AUTH_HMAC_SHA1_160
, ENCR_CAMELLIA_CBC
, 16
548 { TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
,
550 HASH_SHA256
, PRF_HMAC_SHA2_256
,
551 AUTH_HMAC_SHA2_256_256
, ENCR_CAMELLIA_CBC
, 16
553 { TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
,
555 HASH_SHA1
, PRF_HMAC_SHA1
,
556 AUTH_HMAC_SHA1_160
, ENCR_CAMELLIA_CBC
, 32
558 { TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
,
560 HASH_SHA256
, PRF_HMAC_SHA2_256
,
561 AUTH_HMAC_SHA2_256_256
, ENCR_CAMELLIA_CBC
, 32
563 { TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
,
564 KEY_ECDSA
, ECP_256_BIT
,
565 HASH_SHA1
, PRF_HMAC_SHA1
,
566 AUTH_HMAC_SHA1_160
, ENCR_3DES
, 0
568 { TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
,
569 KEY_RSA
, ECP_256_BIT
,
570 HASH_SHA1
, PRF_HMAC_SHA1
,
571 AUTH_HMAC_SHA1_160
, ENCR_3DES
, 0
573 { TLS_RSA_WITH_3DES_EDE_CBC_SHA
,
575 HASH_SHA1
, PRF_HMAC_SHA1
,
576 AUTH_HMAC_SHA1_160
, ENCR_3DES
, 0
578 { TLS_ECDHE_ECDSA_WITH_NULL_SHA
,
579 KEY_ECDSA
, ECP_256_BIT
,
580 HASH_SHA1
, PRF_HMAC_SHA1
,
581 AUTH_HMAC_SHA1_160
, ENCR_NULL
, 0
583 { TLS_ECDHE_RSA_WITH_NULL_SHA
,
584 KEY_ECDSA
, ECP_256_BIT
,
585 HASH_SHA1
, PRF_HMAC_SHA1
,
586 AUTH_HMAC_SHA1_160
, ENCR_NULL
, 0
588 { TLS_RSA_WITH_NULL_SHA
,
590 HASH_SHA1
, PRF_HMAC_SHA1
,
591 AUTH_HMAC_SHA1_160
, ENCR_NULL
, 0
593 { TLS_RSA_WITH_NULL_SHA256
,
595 HASH_SHA256
, PRF_HMAC_SHA2_256
,
596 AUTH_HMAC_SHA2_256_256
, ENCR_NULL
, 0
598 { TLS_RSA_WITH_NULL_MD5
,
600 HASH_MD5
, PRF_HMAC_MD5
,
601 AUTH_HMAC_MD5_128
, ENCR_NULL
, 0
606 * Look up algoritms by a suite
608 static suite_algs_t
*find_suite(tls_cipher_suite_t suite
)
612 for (i
= 0; i
< countof(suite_algs
); i
++)
614 if (suite_algs
[i
].suite
== suite
)
616 return &suite_algs
[i
];
623 * Filter a suite list using a transform enumerator
625 static void filter_suite(private_tls_crypto_t
*this,
626 suite_algs_t suites
[], int *count
, int offset
,
627 enumerator_t
*(*create_enumerator
)(crypto_factory_t
*))
629 const char *plugin_name
;
630 suite_algs_t current
;
631 int *current_alg
, i
, remaining
= 0;
632 enumerator_t
*enumerator
;
634 memset(¤t
, 0, sizeof(current
));
635 current_alg
= (int*)((char*)¤t
+ offset
);
637 for (i
= 0; i
< *count
; i
++)
639 enumerator
= create_enumerator(lib
->crypto
);
640 while (enumerator
->enumerate(enumerator
, current_alg
, &plugin_name
))
642 if ((suites
[i
].encr
== ENCR_NULL
||
643 !current
.encr
|| current
.encr
== suites
[i
].encr
) &&
644 (!current
.mac
|| current
.mac
== suites
[i
].mac
) &&
645 (!current
.prf
|| current
.prf
== suites
[i
].prf
) &&
646 (!current
.hash
|| current
.hash
== suites
[i
].hash
) &&
647 (suites
[i
].dh
== MODP_NONE
||
648 !current
.dh
|| current
.dh
== suites
[i
].dh
))
650 suites
[remaining
] = suites
[i
];
655 enumerator
->destroy(enumerator
);
661 * Purge NULL encryption cipher suites from list
663 static void filter_null_suites(private_tls_crypto_t
*this,
664 suite_algs_t suites
[], int *count
)
666 int i
, remaining
= 0;
668 for (i
= 0; i
< *count
; i
++)
670 if (suites
[i
].encr
!= ENCR_NULL
)
672 suites
[remaining
] = suites
[i
];
680 * Purge suites using a given key type
682 static void filter_key_suites(private_tls_crypto_t
*this,
683 suite_algs_t suites
[], int *count
, key_type_t key
)
685 int i
, remaining
= 0;
687 DBG2(DBG_TLS
, "disabling %N suites, no backend found", key_type_names
, key
);
688 for (i
= 0; i
< *count
; i
++)
690 if (suites
[i
].key
!= key
)
692 suites
[remaining
] = suites
[i
];
700 * Filter suites by key exchange user config
702 static void filter_key_exchange_config_suites(private_tls_crypto_t
*this,
703 suite_algs_t suites
[], int *count
)
705 enumerator_t
*enumerator
;
706 int i
, remaining
= 0;
707 char *token
, *config
;
709 config
= lib
->settings
->get_str(lib
->settings
, "libtls.key_exchange", NULL
);
712 for (i
= 0; i
< *count
; i
++)
714 enumerator
= enumerator_create_token(config
, ",", " ");
715 while (enumerator
->enumerate(enumerator
, &token
))
717 if (strcaseeq(token
, "ecdhe-ecdsa") &&
718 diffie_hellman_group_is_ec(suites
[i
].dh
) &&
719 suites
[i
].key
== KEY_ECDSA
)
721 suites
[remaining
++] = suites
[i
];
724 if (strcaseeq(token
, "ecdhe-rsa") &&
725 diffie_hellman_group_is_ec(suites
[i
].dh
) &&
726 suites
[i
].key
== KEY_RSA
)
728 suites
[remaining
++] = suites
[i
];
731 if (strcaseeq(token
, "dhe-rsa") &&
732 !diffie_hellman_group_is_ec(suites
[i
].dh
) &&
733 suites
[i
].dh
!= MODP_NONE
&&
734 suites
[i
].key
== KEY_RSA
)
736 suites
[remaining
++] = suites
[i
];
739 if (strcaseeq(token
, "rsa") &&
740 suites
[i
].dh
== MODP_NONE
&&
741 suites
[i
].key
== KEY_RSA
)
743 suites
[remaining
++] = suites
[i
];
747 enumerator
->destroy(enumerator
);
754 * Filter suites by cipher user config
756 static void filter_cipher_config_suites(private_tls_crypto_t
*this,
757 suite_algs_t suites
[], int *count
)
759 enumerator_t
*enumerator
;
760 int i
, remaining
= 0;
761 char *token
, *config
;
763 config
= lib
->settings
->get_str(lib
->settings
, "libtls.cipher", NULL
);
766 for (i
= 0; i
< *count
; i
++)
768 enumerator
= enumerator_create_token(config
, ",", " ");
769 while (enumerator
->enumerate(enumerator
, &token
))
771 if (strcaseeq(token
, "aes128") &&
772 suites
[i
].encr
== ENCR_AES_CBC
&&
773 suites
[i
].encr_size
== 16)
775 suites
[remaining
++] = suites
[i
];
778 if (strcaseeq(token
, "aes256") &&
779 suites
[i
].encr
== ENCR_AES_CBC
&&
780 suites
[i
].encr_size
== 32)
782 suites
[remaining
++] = suites
[i
];
785 if (strcaseeq(token
, "camellia128") &&
786 suites
[i
].encr
== ENCR_CAMELLIA_CBC
&&
787 suites
[i
].encr_size
== 16)
789 suites
[remaining
++] = suites
[i
];
792 if (strcaseeq(token
, "camellia256") &&
793 suites
[i
].encr
== ENCR_CAMELLIA_CBC
&&
794 suites
[i
].encr_size
== 32)
796 suites
[remaining
++] = suites
[i
];
799 if (strcaseeq(token
, "3des") &&
800 suites
[i
].encr
== ENCR_3DES
)
802 suites
[remaining
++] = suites
[i
];
805 if (strcaseeq(token
, "null") &&
806 suites
[i
].encr
== ENCR_NULL
)
808 suites
[remaining
++] = suites
[i
];
812 enumerator
->destroy(enumerator
);
819 * Filter suites by mac user config
821 static void filter_mac_config_suites(private_tls_crypto_t
*this,
822 suite_algs_t suites
[], int *count
)
824 enumerator_t
*enumerator
;
825 int i
, remaining
= 0;
826 char *token
, *config
;
828 config
= lib
->settings
->get_str(lib
->settings
, "libtls.mac", NULL
);
831 for (i
= 0; i
< *count
; i
++)
833 enumerator
= enumerator_create_token(config
, ",", " ");
834 while (enumerator
->enumerate(enumerator
, &token
))
836 if (strcaseeq(token
, "md5") &&
837 suites
[i
].hash
== HASH_MD5
)
839 suites
[remaining
++] = suites
[i
];
842 if (strcaseeq(token
, "sha1") &&
843 suites
[i
].hash
== HASH_SHA1
)
845 suites
[remaining
++] = suites
[i
];
848 if (strcaseeq(token
, "sha256") &&
849 suites
[i
].hash
== HASH_SHA256
)
851 suites
[remaining
++] = suites
[i
];
854 if (strcaseeq(token
, "sha384") &&
855 suites
[i
].hash
== HASH_SHA384
)
857 suites
[remaining
++] = suites
[i
];
861 enumerator
->destroy(enumerator
);
868 * Filter for specific suites specified in strongswan.conf
870 static void filter_specific_config_suites(private_tls_crypto_t
*this,
871 suite_algs_t suites
[], int *count
)
873 enumerator_t
*enumerator
;
874 int i
, remaining
= 0, suite
;
875 char *token
, *config
;
877 config
= lib
->settings
->get_str(lib
->settings
, "libtls.suites", NULL
);
880 for (i
= 0; i
< *count
; i
++)
882 enumerator
= enumerator_create_token(config
, ",", " ");
883 while (enumerator
->enumerate(enumerator
, &token
))
885 suite
= enum_from_name(tls_cipher_suite_names
, token
);
886 if (suite
== suites
[i
].suite
)
888 suites
[remaining
++] = suites
[i
];
892 enumerator
->destroy(enumerator
);
899 * Initialize the cipher suite list
901 static void build_cipher_suite_list(private_tls_crypto_t
*this,
902 bool require_encryption
)
904 suite_algs_t suites
[countof(suite_algs
)];
905 int count
= countof(suite_algs
), i
;
907 /* copy all suites */
908 for (i
= 0; i
< count
; i
++)
910 suites
[i
] = suite_algs
[i
];
912 if (require_encryption
)
914 filter_null_suites(this, suites
, &count
);
918 filter_key_suites(this, suites
, &count
, KEY_RSA
);
922 filter_key_suites(this, suites
, &count
, KEY_ECDSA
);
925 /* filter suite list by each algorithm */
926 filter_suite(this, suites
, &count
, offsetof(suite_algs_t
, encr
),
927 lib
->crypto
->create_crypter_enumerator
);
928 filter_suite(this, suites
, &count
, offsetof(suite_algs_t
, mac
),
929 lib
->crypto
->create_signer_enumerator
);
930 filter_suite(this, suites
, &count
, offsetof(suite_algs_t
, prf
),
931 lib
->crypto
->create_prf_enumerator
);
932 filter_suite(this, suites
, &count
, offsetof(suite_algs_t
, hash
),
933 lib
->crypto
->create_hasher_enumerator
);
934 filter_suite(this, suites
, &count
, offsetof(suite_algs_t
, dh
),
935 lib
->crypto
->create_dh_enumerator
);
937 /* filter suites with strongswan.conf options */
938 filter_key_exchange_config_suites(this, suites
, &count
);
939 filter_cipher_config_suites(this, suites
, &count
);
940 filter_mac_config_suites(this, suites
, &count
);
941 filter_specific_config_suites(this, suites
, &count
);
944 this->suite_count
= count
;
945 this->suites
= malloc(sizeof(tls_cipher_suite_t
) * count
);
947 DBG2(DBG_TLS
, "%d supported TLS cipher suites:", count
);
948 for (i
= 0; i
< count
; i
++)
950 DBG2(DBG_TLS
, " %N", tls_cipher_suite_names
, suites
[i
].suite
);
951 this->suites
[i
] = suites
[i
].suite
;
955 METHOD(tls_crypto_t
, get_cipher_suites
, int,
956 private_tls_crypto_t
*this, tls_cipher_suite_t
**suites
)
958 *suites
= this->suites
;
959 return this->suite_count
;
963 * Create crypto primitives
965 static bool create_ciphers(private_tls_crypto_t
*this, suite_algs_t
*algs
)
967 DESTROY_IF(this->prf
);
968 if (this->tls
->get_version(this->tls
) < TLS_1_2
)
970 this->prf
= tls_prf_create_10();
974 this->prf
= tls_prf_create_12(algs
->prf
);
978 DBG1(DBG_TLS
, "selected TLS PRF not supported");
982 DESTROY_IF(this->signer_in
);
983 DESTROY_IF(this->signer_out
);
984 this->signer_in
= lib
->crypto
->create_signer(lib
->crypto
, algs
->mac
);
985 this->signer_out
= lib
->crypto
->create_signer(lib
->crypto
, algs
->mac
);
986 if (!this->signer_in
|| !this->signer_out
)
988 DBG1(DBG_TLS
, "selected TLS MAC %N not supported",
989 integrity_algorithm_names
, algs
->mac
);
993 DESTROY_IF(this->crypter_in
);
994 DESTROY_IF(this->crypter_out
);
995 if (algs
->encr
== ENCR_NULL
)
997 this->crypter_in
= this->crypter_out
= NULL
;
1001 this->crypter_in
= lib
->crypto
->create_crypter(lib
->crypto
,
1002 algs
->encr
, algs
->encr_size
);
1003 this->crypter_out
= lib
->crypto
->create_crypter(lib
->crypto
,
1004 algs
->encr
, algs
->encr_size
);
1005 if (!this->crypter_in
|| !this->crypter_out
)
1007 DBG1(DBG_TLS
, "selected TLS crypter %N not supported",
1008 encryption_algorithm_names
, algs
->encr
);
1015 METHOD(tls_crypto_t
, select_cipher_suite
, tls_cipher_suite_t
,
1016 private_tls_crypto_t
*this, tls_cipher_suite_t
*suites
, int count
,
1022 for (i
= 0; i
< this->suite_count
; i
++)
1024 for (j
= 0; j
< count
; j
++)
1026 if (this->suites
[i
] == suites
[j
])
1028 algs
= find_suite(this->suites
[i
]);
1031 if (key
== KEY_ANY
|| key
== algs
->key
)
1033 if (create_ciphers(this, algs
))
1035 this->suite
= this->suites
[i
];
1046 METHOD(tls_crypto_t
, get_dh_group
, diffie_hellman_group_t
,
1047 private_tls_crypto_t
*this)
1051 algs
= find_suite(this->suite
);
1059 METHOD(tls_crypto_t
, get_signature_algorithms
, void,
1060 private_tls_crypto_t
*this, bio_writer_t
*writer
)
1062 bio_writer_t
*supported
;
1063 enumerator_t
*enumerator
;
1064 hash_algorithm_t alg
;
1065 tls_hash_algorithm_t hash
;
1066 const char *plugin_name
;
1068 supported
= bio_writer_create(32);
1069 enumerator
= lib
->crypto
->create_hasher_enumerator(lib
->crypto
);
1070 while (enumerator
->enumerate(enumerator
, &alg
, &plugin_name
))
1075 hash
= TLS_HASH_MD5
;
1078 hash
= TLS_HASH_SHA1
;
1081 hash
= TLS_HASH_SHA224
;
1084 hash
= TLS_HASH_SHA256
;
1087 hash
= TLS_HASH_SHA384
;
1090 hash
= TLS_HASH_SHA512
;
1097 supported
->write_uint8(supported
, hash
);
1098 supported
->write_uint8(supported
, TLS_SIG_RSA
);
1100 if (this->ecdsa
&& alg
!= HASH_MD5
&& alg
!= HASH_SHA224
)
1101 { /* currently we have no signature scheme for MD5/SHA224 */
1102 supported
->write_uint8(supported
, hash
);
1103 supported
->write_uint8(supported
, TLS_SIG_ECDSA
);
1106 enumerator
->destroy(enumerator
);
1108 writer
->write_data16(writer
, supported
->get_buf(supported
));
1109 supported
->destroy(supported
);
1113 * Mapping groups to TLS named curves
1116 diffie_hellman_group_t group
;
1117 tls_named_curve_t curve
;
1119 { ECP_256_BIT
, TLS_SECP256R1
},
1120 { ECP_384_BIT
, TLS_SECP384R1
},
1121 { ECP_521_BIT
, TLS_SECP521R1
},
1122 { ECP_224_BIT
, TLS_SECP224R1
},
1123 { ECP_192_BIT
, TLS_SECP192R1
},
1127 * Filter EC groups, add TLS curve
1129 static bool group_filter(void *null
,
1130 diffie_hellman_group_t
*in
, diffie_hellman_group_t
*out
,
1131 void* dummy1
, tls_named_curve_t
*curve
)
1135 for (i
= 0; i
< countof(curves
); i
++)
1137 if (curves
[i
].group
== *in
)
1141 *out
= curves
[i
].group
;
1145 *curve
= curves
[i
].curve
;
1153 METHOD(tls_crypto_t
, create_ec_enumerator
, enumerator_t
*,
1154 private_tls_crypto_t
*this)
1156 return enumerator_create_filter(
1157 lib
->crypto
->create_dh_enumerator(lib
->crypto
),
1158 (void*)group_filter
, NULL
, NULL
);
1161 METHOD(tls_crypto_t
, set_protection
, void,
1162 private_tls_crypto_t
*this, tls_protection_t
*protection
)
1164 this->protection
= protection
;
1167 METHOD(tls_crypto_t
, append_handshake
, void,
1168 private_tls_crypto_t
*this, tls_handshake_type_t type
, chunk_t data
)
1172 /* reconstruct handshake header */
1173 header
= htonl(data
.len
| (type
<< 24));
1174 this->handshake
= chunk_cat("mcc", this->handshake
,
1175 chunk_from_thing(header
), data
);
1179 * Create a hash using the suites HASH algorithm
1181 static bool hash_data(private_tls_crypto_t
*this, chunk_t data
, chunk_t
*hash
)
1183 if (this->tls
->get_version(this->tls
) >= TLS_1_2
)
1188 alg
= find_suite(this->suite
);
1193 hasher
= lib
->crypto
->create_hasher(lib
->crypto
, alg
->hash
);
1196 DBG1(DBG_TLS
, "%N not supported", hash_algorithm_names
, alg
->hash
);
1199 hasher
->allocate_hash(hasher
, data
, hash
);
1200 hasher
->destroy(hasher
);
1204 hasher_t
*md5
, *sha1
;
1205 char buf
[HASH_SIZE_MD5
+ HASH_SIZE_SHA1
];
1207 md5
= lib
->crypto
->create_hasher(lib
->crypto
, HASH_MD5
);
1210 DBG1(DBG_TLS
, "%N not supported", hash_algorithm_names
, HASH_MD5
);
1213 md5
->get_hash(md5
, data
, buf
);
1215 sha1
= lib
->crypto
->create_hasher(lib
->crypto
, HASH_SHA1
);
1218 DBG1(DBG_TLS
, "%N not supported", hash_algorithm_names
, HASH_SHA1
);
1221 sha1
->get_hash(sha1
, data
, buf
+ HASH_SIZE_MD5
);
1222 sha1
->destroy(sha1
);
1224 *hash
= chunk_clone(chunk_from_thing(buf
));
1230 * Get the signature scheme from a TLS 1.2 hash/sig algorithm pair
1232 static signature_scheme_t
hashsig_to_scheme(key_type_t type
,
1233 tls_hash_algorithm_t hash
, tls_signature_algorithm_t sig
)
1238 if (type
!= KEY_RSA
)
1240 return SIGN_UNKNOWN
;
1245 return SIGN_RSA_EMSA_PKCS1_MD5
;
1247 return SIGN_RSA_EMSA_PKCS1_SHA1
;
1248 case TLS_HASH_SHA224
:
1249 return SIGN_RSA_EMSA_PKCS1_SHA224
;
1250 case TLS_HASH_SHA256
:
1251 return SIGN_RSA_EMSA_PKCS1_SHA256
;
1252 case TLS_HASH_SHA384
:
1253 return SIGN_RSA_EMSA_PKCS1_SHA384
;
1254 case TLS_HASH_SHA512
:
1255 return SIGN_RSA_EMSA_PKCS1_SHA512
;
1257 return SIGN_UNKNOWN
;
1260 if (type
!= KEY_ECDSA
)
1262 return SIGN_UNKNOWN
;
1266 case TLS_HASH_SHA224
:
1267 return SIGN_ECDSA_WITH_SHA1_DER
;
1268 case TLS_HASH_SHA256
:
1269 return SIGN_ECDSA_WITH_SHA256_DER
;
1270 case TLS_HASH_SHA384
:
1271 return SIGN_ECDSA_WITH_SHA384_DER
;
1272 case TLS_HASH_SHA512
:
1273 return SIGN_ECDSA_WITH_SHA512_DER
;
1275 return SIGN_UNKNOWN
;
1278 return SIGN_UNKNOWN
;
1282 METHOD(tls_crypto_t
, sign
, bool,
1283 private_tls_crypto_t
*this, private_key_t
*key
, bio_writer_t
*writer
,
1284 chunk_t data
, chunk_t hashsig
)
1286 if (this->tls
->get_version(this->tls
) >= TLS_1_2
)
1288 signature_scheme_t scheme
;
1289 bio_reader_t
*reader
;
1295 { /* fallback if none given */
1296 hashsig
= chunk_from_chars(
1297 TLS_HASH_SHA1
, TLS_SIG_RSA
, TLS_HASH_SHA1
, TLS_SIG_ECDSA
);
1299 reader
= bio_reader_create(hashsig
);
1300 while (reader
->remaining(reader
) >= 2)
1302 if (reader
->read_uint8(reader
, &hash
) &&
1303 reader
->read_uint8(reader
, &alg
))
1305 scheme
= hashsig_to_scheme(key
->get_type(key
), hash
, alg
);
1306 if (scheme
!= SIGN_UNKNOWN
&&
1307 key
->sign(key
, scheme
, data
, &sig
))
1314 reader
->destroy(reader
);
1317 DBG1(DBG_TLS
, "none of the proposed hash/sig algorithms supported");
1320 DBG2(DBG_TLS
, "created signature with %N/%N",
1321 tls_hash_algorithm_names
, hash
, tls_signature_algorithm_names
, alg
);
1322 writer
->write_uint8(writer
, hash
);
1323 writer
->write_uint8(writer
, alg
);
1324 writer
->write_data16(writer
, sig
);
1332 switch (key
->get_type(key
))
1335 if (!hash_data(this, data
, &hash
))
1339 done
= key
->sign(key
, SIGN_RSA_EMSA_PKCS1_NULL
, hash
, &sig
);
1345 DBG2(DBG_TLS
, "created signature with MD5+SHA1/RSA");
1348 if (!key
->sign(key
, SIGN_ECDSA_WITH_SHA1_DER
, data
, &sig
))
1352 DBG2(DBG_TLS
, "created signature with SHA1/ECDSA");
1357 writer
->write_data16(writer
, sig
);
1363 METHOD(tls_crypto_t
, verify
, bool,
1364 private_tls_crypto_t
*this, public_key_t
*key
, bio_reader_t
*reader
,
1367 if (this->tls
->get_version(this->tls
) >= TLS_1_2
)
1369 signature_scheme_t scheme
= SIGN_UNKNOWN
;
1373 if (!reader
->read_uint8(reader
, &hash
) ||
1374 !reader
->read_uint8(reader
, &alg
) ||
1375 !reader
->read_data16(reader
, &sig
))
1377 DBG1(DBG_TLS
, "received invalid signature");
1380 scheme
= hashsig_to_scheme(key
->get_type(key
), hash
, alg
);
1381 if (scheme
== SIGN_UNKNOWN
)
1383 DBG1(DBG_TLS
, "signature algorithms %N/%N not supported",
1384 tls_hash_algorithm_names
, hash
,
1385 tls_signature_algorithm_names
, alg
);
1388 if (!key
->verify(key
, scheme
, data
, sig
))
1392 DBG2(DBG_TLS
, "verified signature with %N/%N",
1393 tls_hash_algorithm_names
, hash
, tls_signature_algorithm_names
, alg
);
1400 if (!reader
->read_data16(reader
, &sig
))
1402 DBG1(DBG_TLS
, "received invalid signature");
1405 switch (key
->get_type(key
))
1408 if (!hash_data(this, data
, &hash
))
1412 done
= key
->verify(key
, SIGN_RSA_EMSA_PKCS1_NULL
, hash
, sig
);
1418 DBG2(DBG_TLS
, "verified signature data with MD5+SHA1/RSA");
1421 if (!key
->verify(key
, SIGN_ECDSA_WITH_SHA1_DER
, data
, sig
))
1425 DBG2(DBG_TLS
, "verified signature with SHA1/ECDSA");
1434 METHOD(tls_crypto_t
, sign_handshake
, bool,
1435 private_tls_crypto_t
*this, private_key_t
*key
, bio_writer_t
*writer
,
1438 return sign(this, key
, writer
, this->handshake
, hashsig
);
1441 METHOD(tls_crypto_t
, verify_handshake
, bool,
1442 private_tls_crypto_t
*this, public_key_t
*key
, bio_reader_t
*reader
)
1444 return verify(this, key
, reader
, this->handshake
);
1447 METHOD(tls_crypto_t
, calculate_finished
, bool,
1448 private_tls_crypto_t
*this, char *label
, char out
[12])
1456 if (!hash_data(this, this->handshake
, &seed
))
1460 this->prf
->get_bytes(this->prf
, label
, seed
, 12, out
);
1465 METHOD(tls_crypto_t
, derive_secrets
, void,
1466 private_tls_crypto_t
*this, chunk_t premaster
,
1467 chunk_t client_random
, chunk_t server_random
)
1470 chunk_t seed
, block
, client_write
, server_write
;
1471 int mks
, eks
= 0, ivs
= 0;
1473 /* derive master secret */
1474 seed
= chunk_cata("cc", client_random
, server_random
);
1475 this->prf
->set_key(this->prf
, premaster
);
1476 this->prf
->get_bytes(this->prf
, "master secret", seed
,
1477 sizeof(master
), master
);
1479 this->prf
->set_key(this->prf
, chunk_from_thing(master
));
1480 memset(master
, 0, sizeof(master
));
1482 /* derive key block for key expansion */
1483 mks
= this->signer_out
->get_key_size(this->signer_out
);
1484 if (this->crypter_out
)
1486 eks
= this->crypter_out
->get_key_size(this->crypter_out
);
1487 if (this->tls
->get_version(this->tls
) < TLS_1_1
)
1489 ivs
= this->crypter_out
->get_iv_size(this->crypter_out
);
1492 seed
= chunk_cata("cc", server_random
, client_random
);
1493 block
= chunk_alloca((mks
+ eks
+ ivs
) * 2);
1494 this->prf
->get_bytes(this->prf
, "key expansion", seed
, block
.len
, block
.ptr
);
1497 client_write
= chunk_create(block
.ptr
, mks
);
1498 block
= chunk_skip(block
, mks
);
1499 server_write
= chunk_create(block
.ptr
, mks
);
1500 block
= chunk_skip(block
, mks
);
1501 if (this->tls
->is_server(this->tls
))
1503 this->signer_in
->set_key(this->signer_in
, client_write
);
1504 this->signer_out
->set_key(this->signer_out
, server_write
);
1508 this->signer_out
->set_key(this->signer_out
, client_write
);
1509 this->signer_in
->set_key(this->signer_in
, server_write
);
1512 /* crypter keys, and IVs if < TLSv1.2 */
1513 if (this->crypter_out
&& this->crypter_in
)
1515 client_write
= chunk_create(block
.ptr
, eks
);
1516 block
= chunk_skip(block
, eks
);
1517 server_write
= chunk_create(block
.ptr
, eks
);
1518 block
= chunk_skip(block
, eks
);
1520 if (this->tls
->is_server(this->tls
))
1522 this->crypter_in
->set_key(this->crypter_in
, client_write
);
1523 this->crypter_out
->set_key(this->crypter_out
, server_write
);
1527 this->crypter_out
->set_key(this->crypter_out
, client_write
);
1528 this->crypter_in
->set_key(this->crypter_in
, server_write
);
1532 client_write
= chunk_create(block
.ptr
, ivs
);
1533 block
= chunk_skip(block
, ivs
);
1534 server_write
= chunk_create(block
.ptr
, ivs
);
1535 block
= chunk_skip(block
, ivs
);
1537 if (this->tls
->is_server(this->tls
))
1539 this->iv_in
= chunk_clone(client_write
);
1540 this->iv_out
= chunk_clone(server_write
);
1544 this->iv_out
= chunk_clone(client_write
);
1545 this->iv_in
= chunk_clone(server_write
);
1551 METHOD(tls_crypto_t
, change_cipher
, void,
1552 private_tls_crypto_t
*this, bool inbound
)
1554 if (this->protection
)
1558 this->protection
->set_cipher(this->protection
, TRUE
,
1559 this->signer_in
, this->crypter_in
, this->iv_in
);
1563 this->protection
->set_cipher(this->protection
, FALSE
,
1564 this->signer_out
, this->crypter_out
, this->iv_out
);
1569 METHOD(tls_crypto_t
, derive_eap_msk
, void,
1570 private_tls_crypto_t
*this, chunk_t client_random
, chunk_t server_random
)
1572 if (this->msk_label
)
1576 seed
= chunk_cata("cc", client_random
, server_random
);
1577 free(this->msk
.ptr
);
1578 this->msk
= chunk_alloc(64);
1579 this->prf
->get_bytes(this->prf
, this->msk_label
, seed
,
1580 this->msk
.len
, this->msk
.ptr
);
1584 METHOD(tls_crypto_t
, get_eap_msk
, chunk_t
,
1585 private_tls_crypto_t
*this)
1590 METHOD(tls_crypto_t
, destroy
, void,
1591 private_tls_crypto_t
*this)
1593 DESTROY_IF(this->signer_in
);
1594 DESTROY_IF(this->signer_out
);
1595 DESTROY_IF(this->crypter_in
);
1596 DESTROY_IF(this->crypter_out
);
1597 free(this->iv_in
.ptr
);
1598 free(this->iv_out
.ptr
);
1599 free(this->handshake
.ptr
);
1600 free(this->msk
.ptr
);
1601 DESTROY_IF(this->prf
);
1609 tls_crypto_t
*tls_crypto_create(tls_t
*tls
)
1611 private_tls_crypto_t
*this;
1612 enumerator_t
*enumerator
;
1613 credential_type_t type
;
1618 .get_cipher_suites
= _get_cipher_suites
,
1619 .select_cipher_suite
= _select_cipher_suite
,
1620 .get_dh_group
= _get_dh_group
,
1621 .get_signature_algorithms
= _get_signature_algorithms
,
1622 .create_ec_enumerator
= _create_ec_enumerator
,
1623 .set_protection
= _set_protection
,
1624 .append_handshake
= _append_handshake
,
1627 .sign_handshake
= _sign_handshake
,
1628 .verify_handshake
= _verify_handshake
,
1629 .calculate_finished
= _calculate_finished
,
1630 .derive_secrets
= _derive_secrets
,
1631 .change_cipher
= _change_cipher
,
1632 .derive_eap_msk
= _derive_eap_msk
,
1633 .get_eap_msk
= _get_eap_msk
,
1634 .destroy
= _destroy
,
1639 enumerator
= lib
->creds
->create_builder_enumerator(lib
->creds
);
1640 while (enumerator
->enumerate(enumerator
, &type
, &subtype
))
1642 if (type
== CRED_PUBLIC_KEY
)
1657 enumerator
->destroy(enumerator
);
1659 switch (tls
->get_purpose(tls
))
1661 case TLS_PURPOSE_EAP_TLS
:
1662 case TLS_PURPOSE_EAP_PEAP
:
1663 /* MSK PRF ASCII constant label according to EAP-TLS RFC 5216 */
1664 this->msk_label
= "client EAP encryption";
1665 build_cipher_suite_list(this, FALSE
);
1667 case TLS_PURPOSE_EAP_TTLS
:
1668 /* MSK PRF ASCII constant label according to EAP-TTLS RFC 5281 */
1669 this->msk_label
= "ttls keying material";
1670 build_cipher_suite_list(this, TRUE
);
1672 case TLS_PURPOSE_GENERIC
:
1673 build_cipher_suite_list(this, TRUE
);
1678 return &this->public;