2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
58 /* ====================================================================
59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
111 /* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECC cipher suite support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
116 /* ====================================================================
117 * Copyright 2005 Nokia. All rights reserved.
119 * The portions of the attached software ("Contribution") is developed by
120 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
123 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
124 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
125 * support (see RFC 4279) to OpenSSL.
127 * No patent licenses or other rights except those expressly stated in
128 * the OpenSSL open source license shall be deemed granted or received
129 * expressly, by implication, estoppel, or otherwise.
131 * No assurances are provided by Nokia that the Contribution does not
132 * infringe the patent or other intellectual property rights of any third
133 * party or that the license provides you with all the necessary rights
134 * to make use of the Contribution.
136 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
137 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
138 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
139 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
144 #include <openssl/objects.h>
145 #ifndef OPENSSL_NO_COMP
146 # include <openssl/comp.h>
148 #ifndef OPENSSL_NO_ENGINE
149 # include <openssl/engine.h>
151 #include "ssl_locl.h"
153 #define SSL_ENC_DES_IDX 0
154 #define SSL_ENC_3DES_IDX 1
155 #define SSL_ENC_RC4_IDX 2
156 #define SSL_ENC_RC2_IDX 3
157 #define SSL_ENC_IDEA_IDX 4
158 #define SSL_ENC_NULL_IDX 5
159 #define SSL_ENC_AES128_IDX 6
160 #define SSL_ENC_AES256_IDX 7
161 #define SSL_ENC_CAMELLIA128_IDX 8
162 #define SSL_ENC_CAMELLIA256_IDX 9
163 #define SSL_ENC_GOST89_IDX 10
164 #define SSL_ENC_SEED_IDX 11
165 #define SSL_ENC_AES128GCM_IDX 12
166 #define SSL_ENC_AES256GCM_IDX 13
167 #define SSL_ENC_NUM_IDX 14
169 /* NB: make sure indices in these tables match values above */
176 /* Table of NIDs for each cipher */
177 static const ssl_cipher_table ssl_cipher_table_cipher[SSL_ENC_NUM_IDX] = {
178 {SSL_DES, NID_des_cbc}, /* SSL_ENC_DES_IDX 0 */
179 {SSL_3DES, NID_des_ede3_cbc}, /* SSL_ENC_3DES_IDX 1 */
180 {SSL_RC4, NID_rc4}, /* SSL_ENC_RC4_IDX 2 */
181 {SSL_RC2, NID_rc2_cbc}, /* SSL_ENC_RC2_IDX 3 */
182 {SSL_IDEA, NID_idea_cbc}, /* SSL_ENC_IDEA_IDX 4 */
183 {SSL_eNULL, NID_undef}, /* SSL_ENC_NULL_IDX 5 */
184 {SSL_AES128, NID_aes_128_cbc}, /* SSL_ENC_AES128_IDX 6 */
185 {SSL_AES256, NID_aes_256_cbc}, /* SSL_ENC_AES256_IDX 7 */
186 {SSL_CAMELLIA128, NID_camellia_128_cbc}, /* SSL_ENC_CAMELLIA128_IDX 8 */
187 {SSL_CAMELLIA256, NID_camellia_256_cbc}, /* SSL_ENC_CAMELLIA256_IDX 9 */
188 {SSL_eGOST2814789CNT, NID_gost89_cnt}, /* SSL_ENC_GOST89_IDX 10 */
189 {SSL_SEED, NID_seed_cbc}, /* SSL_ENC_SEED_IDX 11 */
190 {SSL_AES128GCM, NID_aes_128_gcm}, /* SSL_ENC_AES128GCM_IDX 12 */
191 {SSL_AES256GCM, NID_aes_256_gcm} /* SSL_ENC_AES256GCM_IDX 13 */
194 static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX] = {
195 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
199 #define SSL_COMP_NULL_IDX 0
200 #define SSL_COMP_ZLIB_IDX 1
201 #define SSL_COMP_NUM_IDX 2
203 static STACK_OF(SSL_COMP) *ssl_comp_methods = NULL;
205 #define SSL_MD_MD5_IDX 0
206 #define SSL_MD_SHA1_IDX 1
207 #define SSL_MD_GOST94_IDX 2
208 #define SSL_MD_GOST89MAC_IDX 3
209 #define SSL_MD_SHA256_IDX 4
210 #define SSL_MD_SHA384_IDX 5
212 * Constant SSL_MAX_DIGEST equal to size of digests array should be defined
216 #define SSL_MD_NUM_IDX SSL_MAX_DIGEST
218 /* NB: make sure indices in this table matches values above */
219 static const ssl_cipher_table ssl_cipher_table_mac[SSL_MD_NUM_IDX] = {
220 {SSL_MD5, NID_md5}, /* SSL_MD_MD5_IDX 0 */
221 {SSL_SHA1, NID_sha1}, /* SSL_MD_SHA1_IDX 1 */
222 {SSL_GOST94, NID_id_GostR3411_94}, /* SSL_MD_GOST94_IDX 2 */
223 {SSL_GOST89MAC, NID_id_Gost28147_89_MAC}, /* SSL_MD_GOST89MAC_IDX 3 */
224 {SSL_SHA256, NID_sha256}, /* SSL_MD_SHA256_IDX 4 */
225 {SSL_SHA384, NID_sha384} /* SSL_MD_SHA384_IDX 5 */
228 static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX] = {
229 NULL, NULL, NULL, NULL, NULL, NULL
232 /* Utility function for table lookup */
233 static int ssl_cipher_info_find(const ssl_cipher_table * table,
234 size_t table_cnt, unsigned long mask)
237 for (i = 0; i < table_cnt; i++, table++) {
238 if (table->mask == mask)
244 #define ssl_cipher_info_lookup(table, x) \
245 ssl_cipher_info_find(table, OSSL_NELEM(table), x)
248 * PKEY_TYPE for GOST89MAC is known in advance, but, because implementation
249 * is engine-provided, we'll fill it only if corresponding EVP_PKEY_METHOD is
252 static int ssl_mac_pkey_id[SSL_MD_NUM_IDX] = {
253 EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef,
254 EVP_PKEY_HMAC, EVP_PKEY_HMAC
257 static int ssl_mac_secret_size[SSL_MD_NUM_IDX] = {
261 static const int ssl_handshake_digest_flag[SSL_MD_NUM_IDX] = {
262 SSL_HANDSHAKE_MAC_MD5, SSL_HANDSHAKE_MAC_SHA,
263 SSL_HANDSHAKE_MAC_GOST94, 0, SSL_HANDSHAKE_MAC_SHA256,
264 SSL_HANDSHAKE_MAC_SHA384
268 #define CIPHER_KILL 2
271 #define CIPHER_SPECIAL 5
273 typedef struct cipher_order_st {
274 const SSL_CIPHER *cipher;
277 struct cipher_order_st *next, *prev;
280 static const SSL_CIPHER cipher_aliases[] = {
281 /* "ALL" doesn't include eNULL (must be specifically enabled) */
282 {0, SSL_TXT_ALL, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, 0},
283 /* "COMPLEMENTOFALL" */
284 {0, SSL_TXT_CMPALL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
287 * "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in
290 {0, SSL_TXT_CMPDEF, 0, SSL_kDHE | SSL_kECDHE, SSL_aNULL, ~SSL_eNULL, 0, 0,
294 * key exchange aliases (some of those using only a single bit here
295 * combine multiple key exchange algs according to the RFCs, e.g. kDHE
296 * combines DHE_DSS and DHE_RSA)
298 {0, SSL_TXT_kRSA, 0, SSL_kRSA, 0, 0, 0, 0, 0, 0, 0, 0},
300 {0, SSL_TXT_kDHr, 0, SSL_kDHr, 0, 0, 0, 0, 0, 0, 0, 0},
301 {0, SSL_TXT_kDHd, 0, SSL_kDHd, 0, 0, 0, 0, 0, 0, 0, 0},
302 {0, SSL_TXT_kDH, 0, SSL_kDHr | SSL_kDHd, 0, 0, 0, 0, 0, 0, 0, 0},
303 {0, SSL_TXT_kEDH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0},
304 {0, SSL_TXT_kDHE, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0},
305 {0, SSL_TXT_DH, 0, SSL_kDHr | SSL_kDHd | SSL_kDHE, 0, 0, 0, 0, 0, 0, 0,
308 {0, SSL_TXT_kKRB5, 0, SSL_kKRB5, 0, 0, 0, 0, 0, 0, 0, 0},
310 {0, SSL_TXT_kECDHr, 0, SSL_kECDHr, 0, 0, 0, 0, 0, 0, 0, 0},
311 {0, SSL_TXT_kECDHe, 0, SSL_kECDHe, 0, 0, 0, 0, 0, 0, 0, 0},
312 {0, SSL_TXT_kECDH, 0, SSL_kECDHr | SSL_kECDHe, 0, 0, 0, 0, 0, 0, 0, 0},
313 {0, SSL_TXT_kEECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0},
314 {0, SSL_TXT_kECDHE, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0},
315 {0, SSL_TXT_ECDH, 0, SSL_kECDHr | SSL_kECDHe | SSL_kECDHE, 0, 0, 0, 0, 0,
318 {0, SSL_TXT_kPSK, 0, SSL_kPSK, 0, 0, 0, 0, 0, 0, 0, 0},
319 {0, SSL_TXT_kSRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0},
320 {0, SSL_TXT_kGOST, 0, SSL_kGOST, 0, 0, 0, 0, 0, 0, 0, 0},
322 /* server authentication aliases */
323 {0, SSL_TXT_aRSA, 0, 0, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0},
324 {0, SSL_TXT_aDSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0},
325 {0, SSL_TXT_DSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0},
326 {0, SSL_TXT_aKRB5, 0, 0, SSL_aKRB5, 0, 0, 0, 0, 0, 0, 0},
327 {0, SSL_TXT_aNULL, 0, 0, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
328 /* no such ciphersuites supported! */
329 {0, SSL_TXT_aDH, 0, 0, SSL_aDH, 0, 0, 0, 0, 0, 0, 0},
330 {0, SSL_TXT_aECDH, 0, 0, SSL_aECDH, 0, 0, 0, 0, 0, 0, 0},
331 {0, SSL_TXT_aECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0},
332 {0, SSL_TXT_ECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0},
333 {0, SSL_TXT_aPSK, 0, 0, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0},
334 {0, SSL_TXT_aGOST94, 0, 0, SSL_aGOST94, 0, 0, 0, 0, 0, 0, 0},
335 {0, SSL_TXT_aGOST01, 0, 0, SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0},
336 {0, SSL_TXT_aGOST, 0, 0, SSL_aGOST94 | SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0},
337 {0, SSL_TXT_aSRP, 0, 0, SSL_aSRP, 0, 0, 0, 0, 0, 0, 0},
339 /* aliases combining key exchange and server authentication */
340 {0, SSL_TXT_EDH, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
341 {0, SSL_TXT_DHE, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
342 {0, SSL_TXT_EECDH, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
343 {0, SSL_TXT_ECDHE, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
344 {0, SSL_TXT_NULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
345 {0, SSL_TXT_KRB5, 0, SSL_kKRB5, SSL_aKRB5, 0, 0, 0, 0, 0, 0, 0},
346 {0, SSL_TXT_RSA, 0, SSL_kRSA, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0},
347 {0, SSL_TXT_ADH, 0, SSL_kDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
348 {0, SSL_TXT_AECDH, 0, SSL_kECDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
349 {0, SSL_TXT_PSK, 0, SSL_kPSK, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0},
350 {0, SSL_TXT_SRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0},
352 /* symmetric encryption aliases */
353 {0, SSL_TXT_DES, 0, 0, 0, SSL_DES, 0, 0, 0, 0, 0, 0},
354 {0, SSL_TXT_3DES, 0, 0, 0, SSL_3DES, 0, 0, 0, 0, 0, 0},
355 {0, SSL_TXT_RC4, 0, 0, 0, SSL_RC4, 0, 0, 0, 0, 0, 0},
356 {0, SSL_TXT_RC2, 0, 0, 0, SSL_RC2, 0, 0, 0, 0, 0, 0},
357 {0, SSL_TXT_IDEA, 0, 0, 0, SSL_IDEA, 0, 0, 0, 0, 0, 0},
358 {0, SSL_TXT_SEED, 0, 0, 0, SSL_SEED, 0, 0, 0, 0, 0, 0},
359 {0, SSL_TXT_eNULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
360 {0, SSL_TXT_AES128, 0, 0, 0, SSL_AES128 | SSL_AES128GCM, 0, 0, 0, 0, 0,
362 {0, SSL_TXT_AES256, 0, 0, 0, SSL_AES256 | SSL_AES256GCM, 0, 0, 0, 0, 0,
364 {0, SSL_TXT_AES, 0, 0, 0, SSL_AES, 0, 0, 0, 0, 0, 0},
365 {0, SSL_TXT_AES_GCM, 0, 0, 0, SSL_AES128GCM | SSL_AES256GCM, 0, 0, 0, 0,
367 {0, SSL_TXT_CAMELLIA128, 0, 0, 0, SSL_CAMELLIA128, 0, 0, 0, 0, 0, 0},
368 {0, SSL_TXT_CAMELLIA256, 0, 0, 0, SSL_CAMELLIA256, 0, 0, 0, 0, 0, 0},
369 {0, SSL_TXT_CAMELLIA, 0, 0, 0, SSL_CAMELLIA128 | SSL_CAMELLIA256, 0, 0, 0,
373 {0, SSL_TXT_MD5, 0, 0, 0, 0, SSL_MD5, 0, 0, 0, 0, 0},
374 {0, SSL_TXT_SHA1, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
375 {0, SSL_TXT_SHA, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
376 {0, SSL_TXT_GOST94, 0, 0, 0, 0, SSL_GOST94, 0, 0, 0, 0, 0},
377 {0, SSL_TXT_GOST89MAC, 0, 0, 0, 0, SSL_GOST89MAC, 0, 0, 0, 0, 0},
378 {0, SSL_TXT_SHA256, 0, 0, 0, 0, SSL_SHA256, 0, 0, 0, 0, 0},
379 {0, SSL_TXT_SHA384, 0, 0, 0, 0, SSL_SHA384, 0, 0, 0, 0, 0},
381 /* protocol version aliases */
382 {0, SSL_TXT_SSLV3, 0, 0, 0, 0, 0, SSL_SSLV3, 0, 0, 0, 0},
383 {0, SSL_TXT_TLSV1, 0, 0, 0, 0, 0, SSL_TLSV1, 0, 0, 0, 0},
384 {0, SSL_TXT_TLSV1_2, 0, 0, 0, 0, 0, SSL_TLSV1_2, 0, 0, 0, 0},
387 {0, SSL_TXT_EXP, 0, 0, 0, 0, 0, 0, SSL_EXPORT, 0, 0, 0},
388 {0, SSL_TXT_EXPORT, 0, 0, 0, 0, 0, 0, SSL_EXPORT, 0, 0, 0},
390 /* strength classes */
391 {0, SSL_TXT_EXP40, 0, 0, 0, 0, 0, 0, SSL_EXP40, 0, 0, 0},
392 {0, SSL_TXT_EXP56, 0, 0, 0, 0, 0, 0, SSL_EXP56, 0, 0, 0},
393 {0, SSL_TXT_LOW, 0, 0, 0, 0, 0, 0, SSL_LOW, 0, 0, 0},
394 {0, SSL_TXT_MEDIUM, 0, 0, 0, 0, 0, 0, SSL_MEDIUM, 0, 0, 0},
395 {0, SSL_TXT_HIGH, 0, 0, 0, 0, 0, 0, SSL_HIGH, 0, 0, 0},
396 /* FIPS 140-2 approved ciphersuite */
397 {0, SSL_TXT_FIPS, 0, 0, 0, ~SSL_eNULL, 0, 0, SSL_FIPS, 0, 0, 0},
399 /* "EDH-" aliases to "DHE-" labels (for backward compatibility) */
400 {0, SSL3_TXT_EDH_DSS_DES_40_CBC_SHA, 0,
401 SSL_kDHE, SSL_aDSS, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_EXPORT | SSL_EXP40,
403 {0, SSL3_TXT_EDH_DSS_DES_64_CBC_SHA, 0,
404 SSL_kDHE, SSL_aDSS, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_NOT_EXP | SSL_LOW,
406 {0, SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA, 0,
407 SSL_kDHE, SSL_aDSS, SSL_3DES, SSL_SHA1, SSL_SSLV3,
408 SSL_NOT_EXP | SSL_HIGH | SSL_FIPS, 0, 0, 0,},
409 {0, SSL3_TXT_EDH_RSA_DES_40_CBC_SHA, 0,
410 SSL_kDHE, SSL_aRSA, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_EXPORT | SSL_EXP40,
412 {0, SSL3_TXT_EDH_RSA_DES_64_CBC_SHA, 0,
413 SSL_kDHE, SSL_aRSA, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_NOT_EXP | SSL_LOW,
415 {0, SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA, 0,
416 SSL_kDHE, SSL_aRSA, SSL_3DES, SSL_SHA1, SSL_SSLV3,
417 SSL_NOT_EXP | SSL_HIGH | SSL_FIPS, 0, 0, 0,},
422 * Search for public key algorithm with given name and return its pkey_id if
423 * it is available. Otherwise return 0
425 #ifdef OPENSSL_NO_ENGINE
427 static int get_optional_pkey_id(const char *pkey_name)
429 const EVP_PKEY_ASN1_METHOD *ameth;
431 ameth = EVP_PKEY_asn1_find_str(NULL, pkey_name, -1);
433 EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
440 static int get_optional_pkey_id(const char *pkey_name)
442 const EVP_PKEY_ASN1_METHOD *ameth;
443 ENGINE *tmpeng = NULL;
445 ameth = EVP_PKEY_asn1_find_str(&tmpeng, pkey_name, -1);
447 EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
450 ENGINE_finish(tmpeng);
456 void ssl_load_ciphers(void)
459 const ssl_cipher_table *t;
460 for (i = 0, t = ssl_cipher_table_cipher; i < SSL_ENC_NUM_IDX; i++, t++) {
461 if (t->nid == NID_undef)
462 ssl_cipher_methods[i] = NULL;
464 ssl_cipher_methods[i] = EVP_get_cipherbynid(t->nid);
467 for (i = 0, t = ssl_cipher_table_mac; i < SSL_MD_NUM_IDX; i++, t++) {
468 ssl_digest_methods[i] = EVP_get_digestbynid(t->nid);
469 if (ssl_digest_methods[i]) {
470 ssl_mac_secret_size[i] = EVP_MD_size(ssl_digest_methods[i]);
471 OPENSSL_assert(ssl_mac_secret_size[i] >= 0);
474 /* Make sure we can access MD5 and SHA1 */
475 OPENSSL_assert(ssl_digest_methods[SSL_MD_MD5_IDX] != NULL);
476 OPENSSL_assert(ssl_digest_methods[SSL_MD_SHA1_IDX] != NULL);
479 #ifndef OPENSSL_NO_COMP
481 static int sk_comp_cmp(const SSL_COMP *const *a, const SSL_COMP *const *b)
483 return ((*a)->id - (*b)->id);
486 static void load_builtin_compressions(void)
488 int got_write_lock = 0;
490 CRYPTO_r_lock(CRYPTO_LOCK_SSL);
491 if (ssl_comp_methods == NULL) {
492 CRYPTO_r_unlock(CRYPTO_LOCK_SSL);
493 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
496 if (ssl_comp_methods == NULL) {
497 SSL_COMP *comp = NULL;
498 COMP_METHOD *method = COMP_zlib();
501 ssl_comp_methods = sk_SSL_COMP_new(sk_comp_cmp);
502 if (COMP_get_type(method) != NID_undef
503 && ssl_comp_methods != NULL) {
504 comp = OPENSSL_malloc(sizeof(*comp));
506 comp->method = method;
507 comp->id = SSL_COMP_ZLIB_IDX;
508 comp->name = COMP_get_name(method);
509 sk_SSL_COMP_push(ssl_comp_methods, comp);
510 sk_SSL_COMP_sort(ssl_comp_methods);
518 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
520 CRYPTO_r_unlock(CRYPTO_LOCK_SSL);
524 int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
525 const EVP_MD **md, int *mac_pkey_type,
526 int *mac_secret_size, SSL_COMP **comp, int use_etm)
536 #ifndef OPENSSL_NO_COMP
537 load_builtin_compressions();
541 ctmp.id = s->compress_meth;
542 if (ssl_comp_methods != NULL) {
543 i = sk_SSL_COMP_find(ssl_comp_methods, &ctmp);
545 *comp = sk_SSL_COMP_value(ssl_comp_methods, i);
549 /* If were only interested in comp then return success */
550 if ((enc == NULL) && (md == NULL))
554 if ((enc == NULL) || (md == NULL))
557 i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc);
562 if (i == SSL_ENC_NULL_IDX)
563 *enc = EVP_enc_null();
565 *enc = ssl_cipher_methods[i];
568 i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac);
571 if (mac_pkey_type != NULL)
572 *mac_pkey_type = NID_undef;
573 if (mac_secret_size != NULL)
574 *mac_secret_size = 0;
575 if (c->algorithm_mac == SSL_AEAD)
576 mac_pkey_type = NULL;
578 *md = ssl_digest_methods[i];
579 if (mac_pkey_type != NULL)
580 *mac_pkey_type = ssl_mac_pkey_id[i];
581 if (mac_secret_size != NULL)
582 *mac_secret_size = ssl_mac_secret_size[i];
585 if ((*enc != NULL) &&
586 (*md != NULL || (EVP_CIPHER_flags(*enc) & EVP_CIPH_FLAG_AEAD_CIPHER))
587 && (!mac_pkey_type || *mac_pkey_type != NID_undef)) {
588 const EVP_CIPHER *evp;
593 if (s->ssl_version >> 8 != TLS1_VERSION_MAJOR ||
594 s->ssl_version < TLS1_VERSION)
600 if (c->algorithm_enc == SSL_RC4 &&
601 c->algorithm_mac == SSL_MD5 &&
602 (evp = EVP_get_cipherbyname("RC4-HMAC-MD5")))
603 *enc = evp, *md = NULL;
604 else if (c->algorithm_enc == SSL_AES128 &&
605 c->algorithm_mac == SSL_SHA1 &&
606 (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1")))
607 *enc = evp, *md = NULL;
608 else if (c->algorithm_enc == SSL_AES256 &&
609 c->algorithm_mac == SSL_SHA1 &&
610 (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1")))
611 *enc = evp, *md = NULL;
612 else if (c->algorithm_enc == SSL_AES128 &&
613 c->algorithm_mac == SSL_SHA256 &&
614 (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA256")))
615 *enc = evp, *md = NULL;
616 else if (c->algorithm_enc == SSL_AES256 &&
617 c->algorithm_mac == SSL_SHA256 &&
618 (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA256")))
619 *enc = evp, *md = NULL;
625 int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md)
627 if (idx < 0 || idx >= SSL_MD_NUM_IDX) {
630 *mask = ssl_handshake_digest_flag[idx];
632 *md = ssl_digest_methods[idx];
638 #define ITEM_SEP(a) \
639 (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
641 static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr,
648 if (curr->prev != NULL)
649 curr->prev->next = curr->next;
650 if (curr->next != NULL)
651 curr->next->prev = curr->prev;
652 (*tail)->next = curr;
658 static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr,
665 if (curr->next != NULL)
666 curr->next->prev = curr->prev;
667 if (curr->prev != NULL)
668 curr->prev->next = curr->next;
669 (*head)->prev = curr;
675 static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth,
676 unsigned long *enc, unsigned long *mac,
685 #ifdef OPENSSL_NO_RSA
689 #ifdef OPENSSL_NO_DSA
693 *mkey |= SSL_kDHr | SSL_kDHd | SSL_kDHE;
696 #ifdef OPENSSL_NO_KRB5
701 *mkey |= SSL_kECDHe | SSL_kECDHr;
702 *auth |= SSL_aECDSA | SSL_aECDH;
704 #ifdef OPENSSL_NO_PSK
708 #ifdef OPENSSL_NO_SRP
712 * Check for presence of GOST 34.10 algorithms, and if they do not
713 * present, disable appropriate auth and key exchange
715 if (!get_optional_pkey_id("gost94")) {
716 *auth |= SSL_aGOST94;
718 if (!get_optional_pkey_id("gost2001")) {
719 *auth |= SSL_aGOST01;
722 * Disable GOST key exchange if no GOST signature algs are available *
724 if ((*auth & (SSL_aGOST94 | SSL_aGOST01)) == (SSL_aGOST94 | SSL_aGOST01)) {
727 #ifdef SSL_FORBID_ENULL
731 *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX] == NULL) ? SSL_DES : 0;
732 *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES : 0;
733 *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX] == NULL) ? SSL_RC4 : 0;
734 *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX] == NULL) ? SSL_RC2 : 0;
735 *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA : 0;
736 *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128 : 0;
737 *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256 : 0;
739 (ssl_cipher_methods[SSL_ENC_AES128GCM_IDX] ==
740 NULL) ? SSL_AES128GCM : 0;
742 (ssl_cipher_methods[SSL_ENC_AES256GCM_IDX] ==
743 NULL) ? SSL_AES256GCM : 0;
745 (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] ==
746 NULL) ? SSL_CAMELLIA128 : 0;
748 (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] ==
749 NULL) ? SSL_CAMELLIA256 : 0;
751 (ssl_cipher_methods[SSL_ENC_GOST89_IDX] ==
752 NULL) ? SSL_eGOST2814789CNT : 0;
753 *enc |= (ssl_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED : 0;
755 *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX] == NULL) ? SSL_MD5 : 0;
756 *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1 : 0;
757 *mac |= (ssl_digest_methods[SSL_MD_SHA256_IDX] == NULL) ? SSL_SHA256 : 0;
758 *mac |= (ssl_digest_methods[SSL_MD_SHA384_IDX] == NULL) ? SSL_SHA384 : 0;
759 *mac |= (ssl_digest_methods[SSL_MD_GOST94_IDX] == NULL) ? SSL_GOST94 : 0;
760 *mac |= (ssl_digest_methods[SSL_MD_GOST89MAC_IDX] == NULL
761 || ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] ==
762 NID_undef) ? SSL_GOST89MAC : 0;
766 static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
768 unsigned long disabled_mkey,
769 unsigned long disabled_auth,
770 unsigned long disabled_enc,
771 unsigned long disabled_mac,
772 unsigned long disabled_ssl,
773 CIPHER_ORDER *co_list,
774 CIPHER_ORDER **head_p,
775 CIPHER_ORDER **tail_p)
781 * We have num_of_ciphers descriptions compiled in, depending on the
782 * method selected (SSLv3, TLSv1 etc).
783 * These will later be sorted in a linked list with at most num
787 /* Get the initial list of ciphers */
788 co_list_num = 0; /* actual count of ciphers */
789 for (i = 0; i < num_of_ciphers; i++) {
790 c = ssl_method->get_cipher(i);
791 /* drop those that use any of that is not available */
792 if ((c != NULL) && c->valid &&
793 (!FIPS_mode() || (c->algo_strength & SSL_FIPS)) &&
794 !(c->algorithm_mkey & disabled_mkey) &&
795 !(c->algorithm_auth & disabled_auth) &&
796 !(c->algorithm_enc & disabled_enc) &&
797 !(c->algorithm_mac & disabled_mac) &&
798 !(c->algorithm_ssl & disabled_ssl)) {
799 co_list[co_list_num].cipher = c;
800 co_list[co_list_num].next = NULL;
801 co_list[co_list_num].prev = NULL;
802 co_list[co_list_num].active = 0;
805 fprintf(stderr, "\t%d: %s %lx %lx %lx\n", i, c->name, c->id,
806 c->algorithm_mkey, c->algorithm_auth);
807 #endif /* KSSL_DEBUG */
809 * if (!sk_push(ca_list,(char *)c)) goto err;
815 * Prepare linked list from list entries
817 if (co_list_num > 0) {
818 co_list[0].prev = NULL;
820 if (co_list_num > 1) {
821 co_list[0].next = &co_list[1];
823 for (i = 1; i < co_list_num - 1; i++) {
824 co_list[i].prev = &co_list[i - 1];
825 co_list[i].next = &co_list[i + 1];
828 co_list[co_list_num - 1].prev = &co_list[co_list_num - 2];
831 co_list[co_list_num - 1].next = NULL;
833 *head_p = &co_list[0];
834 *tail_p = &co_list[co_list_num - 1];
838 static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list,
839 int num_of_group_aliases,
840 unsigned long disabled_mkey,
841 unsigned long disabled_auth,
842 unsigned long disabled_enc,
843 unsigned long disabled_mac,
844 unsigned long disabled_ssl,
847 CIPHER_ORDER *ciph_curr;
848 const SSL_CIPHER **ca_curr;
850 unsigned long mask_mkey = ~disabled_mkey;
851 unsigned long mask_auth = ~disabled_auth;
852 unsigned long mask_enc = ~disabled_enc;
853 unsigned long mask_mac = ~disabled_mac;
854 unsigned long mask_ssl = ~disabled_ssl;
857 * First, add the real ciphers as already collected
861 while (ciph_curr != NULL) {
862 *ca_curr = ciph_curr->cipher;
864 ciph_curr = ciph_curr->next;
868 * Now we add the available ones from the cipher_aliases[] table.
869 * They represent either one or more algorithms, some of which
870 * in any affected category must be supported (set in enabled_mask),
871 * or represent a cipher strength value (will be added in any case because algorithms=0).
873 for (i = 0; i < num_of_group_aliases; i++) {
874 unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey;
875 unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth;
876 unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc;
877 unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac;
878 unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl;
881 if ((algorithm_mkey & mask_mkey) == 0)
885 if ((algorithm_auth & mask_auth) == 0)
889 if ((algorithm_enc & mask_enc) == 0)
893 if ((algorithm_mac & mask_mac) == 0)
897 if ((algorithm_ssl & mask_ssl) == 0)
900 *ca_curr = (SSL_CIPHER *)(cipher_aliases + i);
904 *ca_curr = NULL; /* end of list */
907 static void ssl_cipher_apply_rule(unsigned long cipher_id,
908 unsigned long alg_mkey,
909 unsigned long alg_auth,
910 unsigned long alg_enc,
911 unsigned long alg_mac,
912 unsigned long alg_ssl,
913 unsigned long algo_strength, int rule,
914 int strength_bits, CIPHER_ORDER **head_p,
915 CIPHER_ORDER **tail_p)
917 CIPHER_ORDER *head, *tail, *curr, *next, *last;
918 const SSL_CIPHER *cp;
923 "Applying rule %d with %08lx/%08lx/%08lx/%08lx/%08lx %08lx (%d)\n",
924 rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl,
925 algo_strength, strength_bits);
928 if (rule == CIPHER_DEL)
929 reverse = 1; /* needed to maintain sorting between
930 * currently deleted ciphers */
953 next = reverse ? curr->prev : curr->next;
958 * Selection criteria is either the value of strength_bits
959 * or the algorithms used.
961 if (strength_bits >= 0) {
962 if (strength_bits != cp->strength_bits)
967 "\nName: %s:\nAlgo = %08lx/%08lx/%08lx/%08lx/%08lx Algo_strength = %08lx\n",
968 cp->name, cp->algorithm_mkey, cp->algorithm_auth,
969 cp->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl,
972 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
973 if (cipher_id && cipher_id != cp->id)
976 if (alg_mkey && !(alg_mkey & cp->algorithm_mkey))
978 if (alg_auth && !(alg_auth & cp->algorithm_auth))
980 if (alg_enc && !(alg_enc & cp->algorithm_enc))
982 if (alg_mac && !(alg_mac & cp->algorithm_mac))
984 if (alg_ssl && !(alg_ssl & cp->algorithm_ssl))
986 if ((algo_strength & SSL_EXP_MASK)
987 && !(algo_strength & SSL_EXP_MASK & cp->algo_strength))
989 if ((algo_strength & SSL_STRONG_MASK)
990 && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength))
995 fprintf(stderr, "Action = %d\n", rule);
998 /* add the cipher if it has not been added yet. */
999 if (rule == CIPHER_ADD) {
1001 if (!curr->active) {
1002 ll_append_tail(&head, curr, &tail);
1006 /* Move the added cipher to this location */
1007 else if (rule == CIPHER_ORD) {
1010 ll_append_tail(&head, curr, &tail);
1012 } else if (rule == CIPHER_DEL) {
1016 * most recently deleted ciphersuites get best positions for
1017 * any future CIPHER_ADD (note that the CIPHER_DEL loop works
1018 * in reverse to maintain the order)
1020 ll_append_head(&head, curr, &tail);
1023 } else if (rule == CIPHER_KILL) {
1028 curr->prev->next = curr->next;
1032 if (curr->next != NULL)
1033 curr->next->prev = curr->prev;
1034 if (curr->prev != NULL)
1035 curr->prev->next = curr->next;
1045 static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p,
1046 CIPHER_ORDER **tail_p)
1048 int max_strength_bits, i, *number_uses;
1052 * This routine sorts the ciphers with descending strength. The sorting
1053 * must keep the pre-sorted sequence, so we apply the normal sorting
1054 * routine as '+' movement to the end of the list.
1056 max_strength_bits = 0;
1058 while (curr != NULL) {
1059 if (curr->active && (curr->cipher->strength_bits > max_strength_bits))
1060 max_strength_bits = curr->cipher->strength_bits;
1064 number_uses = OPENSSL_malloc(sizeof(int) * (max_strength_bits + 1));
1066 SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT, ERR_R_MALLOC_FAILURE);
1069 memset(number_uses, 0, sizeof(int) * (max_strength_bits + 1));
1072 * Now find the strength_bits values actually used
1075 while (curr != NULL) {
1077 number_uses[curr->cipher->strength_bits]++;
1081 * Go through the list of used strength_bits values in descending
1084 for (i = max_strength_bits; i >= 0; i--)
1085 if (number_uses[i] > 0)
1086 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p,
1089 OPENSSL_free(number_uses);
1093 static int ssl_cipher_process_rulestr(const char *rule_str,
1094 CIPHER_ORDER **head_p,
1095 CIPHER_ORDER **tail_p,
1096 const SSL_CIPHER **ca_list, CERT *c)
1098 unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl,
1100 const char *l, *buf;
1101 int j, multi, found, rule, retval, ok, buflen;
1102 unsigned long cipher_id = 0;
1115 } else if (ch == '+') {
1118 } else if (ch == '!') {
1121 } else if (ch == '@') {
1122 rule = CIPHER_SPECIAL;
1144 #ifndef CHARSET_EBCDIC
1145 while (((ch >= 'A') && (ch <= 'Z')) ||
1146 ((ch >= '0') && (ch <= '9')) ||
1147 ((ch >= 'a') && (ch <= 'z')) ||
1148 (ch == '-') || (ch == '.') || (ch == '='))
1150 while (isalnum(ch) || (ch == '-') || (ch == '.') || (ch == '='))
1159 * We hit something we cannot deal with,
1160 * it is no command or separator nor
1161 * alphanumeric, so we call this an error.
1163 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
1164 SSL_R_INVALID_COMMAND);
1170 if (rule == CIPHER_SPECIAL) {
1171 found = 0; /* unused -- avoid compiler warning */
1172 break; /* special treatment */
1175 /* check for multi-part specification */
1183 * Now search for the cipher alias in the ca_list. Be careful
1184 * with the strncmp, because the "buflen" limitation
1185 * will make the rule "ADH:SOME" and the cipher
1186 * "ADH-MY-CIPHER" look like a match for buflen=3.
1187 * So additionally check whether the cipher name found
1188 * has the correct length. We can save a strlen() call:
1189 * just checking for the '\0' at the right place is
1190 * sufficient, we have to strncmp() anyway. (We cannot
1191 * use strcmp(), because buf is not '\0' terminated.)
1195 while (ca_list[j]) {
1196 if (strncmp(buf, ca_list[j]->name, buflen) == 0
1197 && (ca_list[j]->name[buflen] == '\0')) {
1205 break; /* ignore this entry */
1207 if (ca_list[j]->algorithm_mkey) {
1209 alg_mkey &= ca_list[j]->algorithm_mkey;
1215 alg_mkey = ca_list[j]->algorithm_mkey;
1218 if (ca_list[j]->algorithm_auth) {
1220 alg_auth &= ca_list[j]->algorithm_auth;
1226 alg_auth = ca_list[j]->algorithm_auth;
1229 if (ca_list[j]->algorithm_enc) {
1231 alg_enc &= ca_list[j]->algorithm_enc;
1237 alg_enc = ca_list[j]->algorithm_enc;
1240 if (ca_list[j]->algorithm_mac) {
1242 alg_mac &= ca_list[j]->algorithm_mac;
1248 alg_mac = ca_list[j]->algorithm_mac;
1251 if (ca_list[j]->algo_strength & SSL_EXP_MASK) {
1252 if (algo_strength & SSL_EXP_MASK) {
1254 (ca_list[j]->algo_strength & SSL_EXP_MASK) |
1256 if (!(algo_strength & SSL_EXP_MASK)) {
1261 algo_strength |= ca_list[j]->algo_strength & SSL_EXP_MASK;
1264 if (ca_list[j]->algo_strength & SSL_STRONG_MASK) {
1265 if (algo_strength & SSL_STRONG_MASK) {
1267 (ca_list[j]->algo_strength & SSL_STRONG_MASK) |
1269 if (!(algo_strength & SSL_STRONG_MASK)) {
1275 ca_list[j]->algo_strength & SSL_STRONG_MASK;
1278 if (ca_list[j]->valid) {
1280 * explicit ciphersuite found; its protocol version does not
1281 * become part of the search pattern!
1284 cipher_id = ca_list[j]->id;
1287 * not an explicit ciphersuite; only in this case, the
1288 * protocol version is considered part of the search pattern
1291 if (ca_list[j]->algorithm_ssl) {
1293 alg_ssl &= ca_list[j]->algorithm_ssl;
1299 alg_ssl = ca_list[j]->algorithm_ssl;
1308 * Ok, we have the rule, now apply it
1310 if (rule == CIPHER_SPECIAL) { /* special command */
1312 if ((buflen == 8) && strncmp(buf, "STRENGTH", 8) == 0)
1313 ok = ssl_cipher_strength_sort(head_p, tail_p);
1314 else if (buflen == 10 && strncmp(buf, "SECLEVEL=", 9) == 0) {
1315 int level = buf[9] - '0';
1316 if (level < 0 || level > 5) {
1317 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
1318 SSL_R_INVALID_COMMAND);
1320 c->sec_level = level;
1324 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
1325 SSL_R_INVALID_COMMAND);
1329 * We do not support any "multi" options
1330 * together with "@", so throw away the
1331 * rest of the command, if any left, until
1332 * end or ':' is found.
1334 while ((*l != '\0') && !ITEM_SEP(*l))
1337 ssl_cipher_apply_rule(cipher_id,
1338 alg_mkey, alg_auth, alg_enc, alg_mac,
1339 alg_ssl, algo_strength, rule, -1, head_p,
1342 while ((*l != '\0') && !ITEM_SEP(*l))
1352 #ifndef OPENSSL_NO_EC
1353 static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c,
1354 const char **prule_str)
1356 unsigned int suiteb_flags = 0, suiteb_comb2 = 0;
1357 if (strcmp(*prule_str, "SUITEB128") == 0)
1358 suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
1359 else if (strcmp(*prule_str, "SUITEB128ONLY") == 0)
1360 suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY;
1361 else if (strcmp(*prule_str, "SUITEB128C2") == 0) {
1363 suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
1364 } else if (strcmp(*prule_str, "SUITEB192") == 0)
1365 suiteb_flags = SSL_CERT_FLAG_SUITEB_192_LOS;
1368 c->cert_flags &= ~SSL_CERT_FLAG_SUITEB_128_LOS;
1369 c->cert_flags |= suiteb_flags;
1371 suiteb_flags = c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS;
1375 /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */
1377 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)) {
1378 if (meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
1379 SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
1380 SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE);
1382 SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
1383 SSL_R_ONLY_TLS_1_2_ALLOWED_IN_SUITEB_MODE);
1386 # ifndef OPENSSL_NO_EC
1387 switch (suiteb_flags) {
1388 case SSL_CERT_FLAG_SUITEB_128_LOS:
1390 *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
1393 "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384";
1395 case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY:
1396 *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256";
1398 case SSL_CERT_FLAG_SUITEB_192_LOS:
1399 *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
1402 /* Set auto ECDH parameter determination */
1403 c->ecdh_tmp_auto = 1;
1406 SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
1407 SSL_R_ECDH_REQUIRED_FOR_SUITEB_MODE);
1413 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, STACK_OF(SSL_CIPHER)
1414 **cipher_list, STACK_OF(SSL_CIPHER)
1415 **cipher_list_by_id,
1416 const char *rule_str, CERT *c)
1418 int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases;
1419 unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac,
1421 STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list;
1423 CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr;
1424 const SSL_CIPHER **ca_list = NULL;
1427 * Return with error if nothing to do.
1429 if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL)
1431 #ifndef OPENSSL_NO_EC
1432 if (!check_suiteb_cipher_list(ssl_method, c, &rule_str))
1437 * To reduce the work to do we only want to process the compiled
1438 * in algorithms, so we first get the mask of disabled ciphers.
1440 ssl_cipher_get_disabled(&disabled_mkey, &disabled_auth, &disabled_enc,
1441 &disabled_mac, &disabled_ssl);
1444 * Now we have to collect the available ciphers from the compiled
1445 * in ciphers. We cannot get more than the number compiled in, so
1446 * it is used for allocation.
1448 num_of_ciphers = ssl_method->num_ciphers();
1450 fprintf(stderr, "ssl_create_cipher_list() for %d ciphers\n",
1452 #endif /* KSSL_DEBUG */
1453 co_list = OPENSSL_malloc(sizeof(*co_list) * num_of_ciphers);
1454 if (co_list == NULL) {
1455 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1456 return (NULL); /* Failure */
1459 ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers,
1460 disabled_mkey, disabled_auth, disabled_enc,
1461 disabled_mac, disabled_ssl, co_list, &head,
1464 /* Now arrange all ciphers by preference: */
1467 * Everything else being equal, prefer ephemeral ECDH over other key
1468 * exchange mechanisms
1470 ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head,
1472 ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head,
1475 /* AES is our preferred symmetric cipher */
1476 ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head,
1479 /* Temporarily enable everything else for sorting */
1480 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
1482 /* Low priority for MD5 */
1483 ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head,
1487 * Move anonymous ciphers to the end. Usually, these will remain
1488 * disabled. (For applications that allow them, they aren't too bad, but
1489 * we prefer authenticated ciphers.)
1491 ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1494 /* Move ciphers without forward secrecy to the end */
1495 ssl_cipher_apply_rule(0, 0, SSL_aECDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1498 * ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1,
1501 ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1503 ssl_cipher_apply_rule(0, SSL_kPSK, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1505 ssl_cipher_apply_rule(0, SSL_kKRB5, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1508 /* RC4 is sort-of broken -- move the the end */
1509 ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head,
1513 * Now sort by symmetric encryption strength. The above ordering remains
1514 * in force within each class
1516 if (!ssl_cipher_strength_sort(&head, &tail)) {
1517 OPENSSL_free(co_list);
1521 /* Now disable everything (maintaining the ordering!) */
1522 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail);
1525 * We also need cipher aliases for selecting based on the rule_str.
1526 * There might be two types of entries in the rule_str: 1) names
1527 * of ciphers themselves 2) aliases for groups of ciphers.
1528 * For 1) we need the available ciphers and for 2) the cipher
1529 * groups of cipher_aliases added together in one list (otherwise
1530 * we would be happy with just the cipher_aliases table).
1532 num_of_group_aliases = OSSL_NELEM(cipher_aliases);
1533 num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
1534 ca_list = OPENSSL_malloc(sizeof(*ca_list) * num_of_alias_max);
1535 if (ca_list == NULL) {
1536 OPENSSL_free(co_list);
1537 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1538 return (NULL); /* Failure */
1540 ssl_cipher_collect_aliases(ca_list, num_of_group_aliases,
1541 disabled_mkey, disabled_auth, disabled_enc,
1542 disabled_mac, disabled_ssl, head);
1545 * If the rule_string begins with DEFAULT, apply the default rule
1546 * before using the (possibly available) additional rules.
1550 if (strncmp(rule_str, "DEFAULT", 7) == 0) {
1551 ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST,
1552 &head, &tail, ca_list, c);
1558 if (ok && (strlen(rule_p) > 0))
1559 ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list, c);
1561 OPENSSL_free(ca_list); /* Not needed anymore */
1563 if (!ok) { /* Rule processing failure */
1564 OPENSSL_free(co_list);
1569 * Allocate new "cipherstack" for the result, return with error
1570 * if we cannot get one.
1572 if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) {
1573 OPENSSL_free(co_list);
1578 * The cipher selection for the list is done. The ciphers are added
1579 * to the resulting precedence to the STACK_OF(SSL_CIPHER).
1581 for (curr = head; curr != NULL; curr = curr->next) {
1583 && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS)) {
1584 if (!sk_SSL_CIPHER_push(cipherstack, curr->cipher)) {
1585 OPENSSL_free(co_list);
1586 sk_SSL_CIPHER_free(cipherstack);
1590 fprintf(stderr, "<%s>\n", curr->cipher->name);
1594 OPENSSL_free(co_list); /* Not needed any longer */
1596 tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack);
1597 if (tmp_cipher_list == NULL) {
1598 sk_SSL_CIPHER_free(cipherstack);
1601 sk_SSL_CIPHER_free(*cipher_list);
1602 *cipher_list = cipherstack;
1603 if (*cipher_list_by_id != NULL)
1604 sk_SSL_CIPHER_free(*cipher_list_by_id);
1605 *cipher_list_by_id = tmp_cipher_list;
1606 (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,
1607 ssl_cipher_ptr_id_cmp);
1609 sk_SSL_CIPHER_sort(*cipher_list_by_id);
1610 return (cipherstack);
1613 char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
1615 int is_export, pkl, kl;
1616 const char *ver, *exp_str;
1617 const char *kx, *au, *enc, *mac;
1618 unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl;
1620 static const char *format =
1621 "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx/%lx/%lx/%lx/%lx\n";
1623 static const char *format =
1624 "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n";
1625 #endif /* KSSL_DEBUG */
1627 alg_mkey = cipher->algorithm_mkey;
1628 alg_auth = cipher->algorithm_auth;
1629 alg_enc = cipher->algorithm_enc;
1630 alg_mac = cipher->algorithm_mac;
1631 alg_ssl = cipher->algorithm_ssl;
1633 is_export = SSL_C_IS_EXPORT(cipher);
1634 pkl = SSL_C_EXPORT_PKEYLENGTH(cipher);
1635 kl = SSL_C_EXPORT_KEYLENGTH(cipher);
1636 exp_str = is_export ? " export" : "";
1638 if (alg_ssl & SSL_SSLV3)
1640 else if (alg_ssl & SSL_TLSV1_2)
1647 kx = is_export ? (pkl == 512 ? "RSA(512)" : "RSA(1024)") : "RSA";
1659 kx = is_export ? (pkl == 512 ? "DH(512)" : "DH(1024)") : "DH";
1724 enc = (is_export && kl == 5) ? "DES(40)" : "DES(56)";
1730 enc = is_export ? (kl == 5 ? "RC4(40)" : "RC4(56)") : "RC4(128)";
1733 enc = is_export ? (kl == 5 ? "RC2(40)" : "RC2(56)") : "RC2(128)";
1748 enc = "AESGCM(128)";
1751 enc = "AESGCM(256)";
1753 case SSL_CAMELLIA128:
1754 enc = "Camellia(128)";
1756 case SSL_CAMELLIA256:
1757 enc = "Camellia(256)";
1762 case SSL_eGOST2814789CNT:
1763 enc = "GOST89(256)";
1799 buf = OPENSSL_malloc(len);
1801 return ("OPENSSL_malloc Error");
1802 } else if (len < 128)
1803 return ("Buffer too small");
1806 BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac,
1807 exp_str, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl);
1809 BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac,
1811 #endif /* KSSL_DEBUG */
1815 char *SSL_CIPHER_get_version(const SSL_CIPHER *c)
1821 i = (int)(c->id >> 24L);
1823 return ("TLSv1/SSLv3");
1828 /* return the actual cipher being used */
1829 const char *SSL_CIPHER_get_name(const SSL_CIPHER *c)
1836 /* number of bits for symmetric cipher */
1837 int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits)
1842 if (alg_bits != NULL)
1843 *alg_bits = c->alg_bits;
1844 ret = c->strength_bits;
1849 unsigned long SSL_CIPHER_get_id(const SSL_CIPHER *c)
1854 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n)
1859 if ((n == 0) || (sk == NULL))
1861 nn = sk_SSL_COMP_num(sk);
1862 for (i = 0; i < nn; i++) {
1863 ctmp = sk_SSL_COMP_value(sk, i);
1870 #ifdef OPENSSL_NO_COMP
1871 STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
1875 STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
1880 void SSL_COMP_free_compression_methods(void)
1883 int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
1889 STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
1891 load_builtin_compressions();
1892 return (ssl_comp_methods);
1895 STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
1898 STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
1899 ssl_comp_methods = meths;
1903 static void cmeth_free(SSL_COMP *cm)
1908 void SSL_COMP_free_compression_methods(void)
1910 STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
1911 ssl_comp_methods = NULL;
1912 sk_SSL_COMP_pop_free(old_meths, cmeth_free);
1915 int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
1919 if (cm == NULL || COMP_get_type(cm) == NID_undef)
1923 * According to draft-ietf-tls-compression-04.txt, the
1924 * compression number ranges should be the following:
1926 * 0 to 63: methods defined by the IETF
1927 * 64 to 192: external party methods assigned by IANA
1928 * 193 to 255: reserved for private use
1930 if (id < 193 || id > 255) {
1931 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,
1932 SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE);
1937 comp = OPENSSL_malloc(sizeof(*comp));
1940 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE);
1946 load_builtin_compressions();
1947 if (ssl_comp_methods && sk_SSL_COMP_find(ssl_comp_methods, comp) >= 0) {
1950 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,
1951 SSL_R_DUPLICATE_COMPRESSION_ID);
1953 } else if ((ssl_comp_methods == NULL)
1954 || !sk_SSL_COMP_push(ssl_comp_methods, comp)) {
1957 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE);
1966 const char *SSL_COMP_get_name(const COMP_METHOD *comp)
1968 #ifndef OPENSSL_NO_COMP
1969 return comp ? COMP_get_name(comp) : NULL;
1975 /* For a cipher return the index corresponding to the certificate type */
1976 int ssl_cipher_get_cert_index(const SSL_CIPHER *c)
1978 unsigned long alg_k, alg_a;
1980 alg_k = c->algorithm_mkey;
1981 alg_a = c->algorithm_auth;
1983 if (alg_k & (SSL_kECDHr | SSL_kECDHe)) {
1985 * we don't need to look at SSL_kECDHE since no certificate is needed
1986 * for anon ECDH and for authenticated ECDHE, the check for the auth
1987 * algorithm will set i correctly NOTE: For ECDH-RSA, we need an ECC
1988 * not an RSA cert but for ECDHE-RSA we need an RSA cert. Placing the
1989 * checks for SSL_kECDH before RSA checks ensures the correct cert is
1992 return SSL_PKEY_ECC;
1993 } else if (alg_a & SSL_aECDSA)
1994 return SSL_PKEY_ECC;
1995 else if (alg_k & SSL_kDHr)
1996 return SSL_PKEY_DH_RSA;
1997 else if (alg_k & SSL_kDHd)
1998 return SSL_PKEY_DH_DSA;
1999 else if (alg_a & SSL_aDSS)
2000 return SSL_PKEY_DSA_SIGN;
2001 else if (alg_a & SSL_aRSA)
2002 return SSL_PKEY_RSA_ENC;
2003 else if (alg_a & SSL_aKRB5)
2004 /* VRS something else here? */
2006 else if (alg_a & SSL_aGOST94)
2007 return SSL_PKEY_GOST94;
2008 else if (alg_a & SSL_aGOST01)
2009 return SSL_PKEY_GOST01;
2013 const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr)
2015 const SSL_CIPHER *c;
2016 c = ssl->method->get_cipher_by_char(ptr);
2017 if (c == NULL || c->valid == 0)
2022 const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr)
2024 return ssl->method->get_cipher_by_char(ptr);
2027 int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c)
2032 i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc);
2035 return ssl_cipher_table_cipher[i].nid;
2038 int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c)
2043 i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac);
2046 return ssl_cipher_table_mac[i].nid;