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_NUM_IDX 12
167 static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX] = {
168 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
171 #define SSL_COMP_NULL_IDX 0
172 #define SSL_COMP_ZLIB_IDX 1
173 #define SSL_COMP_NUM_IDX 2
175 static STACK_OF(SSL_COMP) *ssl_comp_methods = NULL;
177 #define SSL_MD_MD5_IDX 0
178 #define SSL_MD_SHA1_IDX 1
179 #define SSL_MD_GOST94_IDX 2
180 #define SSL_MD_GOST89MAC_IDX 3
182 * Constant SSL_MAX_DIGEST equal to size of digests array should be defined
185 #define SSL_MD_NUM_IDX SSL_MAX_DIGEST
186 static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX] = {
187 NULL, NULL, NULL, NULL
191 * PKEY_TYPE for GOST89MAC is known in advance, but, because implementation
192 * is engine-provided, we'll fill it only if corresponding EVP_PKEY_METHOD is
195 static int ssl_mac_pkey_id[SSL_MD_NUM_IDX] = {
196 EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef
199 static int ssl_mac_secret_size[SSL_MD_NUM_IDX] = {
203 static int ssl_handshake_digest_flag[SSL_MD_NUM_IDX] = {
204 SSL_HANDSHAKE_MAC_MD5, SSL_HANDSHAKE_MAC_SHA,
205 SSL_HANDSHAKE_MAC_GOST94, 0
209 #define CIPHER_KILL 2
212 #define CIPHER_SPECIAL 5
214 typedef struct cipher_order_st {
215 const SSL_CIPHER *cipher;
218 struct cipher_order_st *next, *prev;
221 static const SSL_CIPHER cipher_aliases[] = {
222 /* "ALL" doesn't include eNULL (must be specifically enabled) */
223 {0, SSL_TXT_ALL, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, 0},
224 /* "COMPLEMENTOFALL" */
225 {0, SSL_TXT_CMPALL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
228 * "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in
231 {0, SSL_TXT_CMPDEF, 0, 0, SSL_aNULL, ~SSL_eNULL, 0, ~SSL_SSLV2,
232 SSL_EXP_MASK, 0, 0, 0},
235 * key exchange aliases (some of those using only a single bit here
236 * combine multiple key exchange algs according to the RFCs, e.g. kEDH
237 * combines DHE_DSS and DHE_RSA)
239 {0, SSL_TXT_kRSA, 0, SSL_kRSA, 0, 0, 0, 0, 0, 0, 0, 0},
241 /* no such ciphersuites supported! */
242 {0, SSL_TXT_kDHr, 0, SSL_kDHr, 0, 0, 0, 0, 0, 0, 0, 0},
243 /* no such ciphersuites supported! */
244 {0, SSL_TXT_kDHd, 0, SSL_kDHd, 0, 0, 0, 0, 0, 0, 0, 0},
245 /* no such ciphersuites supported! */
246 {0, SSL_TXT_kDH, 0, SSL_kDHr | SSL_kDHd, 0, 0, 0, 0, 0, 0, 0, 0},
247 {0, SSL_TXT_kEDH, 0, SSL_kEDH, 0, 0, 0, 0, 0, 0, 0, 0},
248 {0, SSL_TXT_DH, 0, SSL_kDHr | SSL_kDHd | SSL_kEDH, 0, 0, 0, 0, 0, 0, 0,
251 {0, SSL_TXT_kKRB5, 0, SSL_kKRB5, 0, 0, 0, 0, 0, 0, 0, 0},
253 {0, SSL_TXT_kECDHr, 0, SSL_kECDHr, 0, 0, 0, 0, 0, 0, 0, 0},
254 {0, SSL_TXT_kECDHe, 0, SSL_kECDHe, 0, 0, 0, 0, 0, 0, 0, 0},
255 {0, SSL_TXT_kECDH, 0, SSL_kECDHr | SSL_kECDHe, 0, 0, 0, 0, 0, 0, 0, 0},
256 {0, SSL_TXT_kEECDH, 0, SSL_kEECDH, 0, 0, 0, 0, 0, 0, 0, 0},
257 {0, SSL_TXT_ECDH, 0, SSL_kECDHr | SSL_kECDHe | SSL_kEECDH, 0, 0, 0, 0, 0,
260 {0, SSL_TXT_kPSK, 0, SSL_kPSK, 0, 0, 0, 0, 0, 0, 0, 0},
261 {0, SSL_TXT_kGOST, 0, SSL_kGOST, 0, 0, 0, 0, 0, 0, 0, 0},
263 /* server authentication aliases */
264 {0, SSL_TXT_aRSA, 0, 0, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0},
265 {0, SSL_TXT_aDSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0},
266 {0, SSL_TXT_DSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0},
267 {0, SSL_TXT_aKRB5, 0, 0, SSL_aKRB5, 0, 0, 0, 0, 0, 0, 0},
268 {0, SSL_TXT_aNULL, 0, 0, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
269 /* no such ciphersuites supported! */
270 {0, SSL_TXT_aDH, 0, 0, SSL_aDH, 0, 0, 0, 0, 0, 0, 0},
271 {0, SSL_TXT_aECDH, 0, 0, SSL_aECDH, 0, 0, 0, 0, 0, 0, 0},
272 {0, SSL_TXT_aECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0},
273 {0, SSL_TXT_ECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0},
274 {0, SSL_TXT_aPSK, 0, 0, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0},
275 {0, SSL_TXT_aGOST94, 0, 0, SSL_aGOST94, 0, 0, 0, 0, 0, 0, 0},
276 {0, SSL_TXT_aGOST01, 0, 0, SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0},
277 {0, SSL_TXT_aGOST, 0, 0, SSL_aGOST94 | SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0},
279 /* aliases combining key exchange and server authentication */
280 {0, SSL_TXT_EDH, 0, SSL_kEDH, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
281 {0, SSL_TXT_EECDH, 0, SSL_kEECDH, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
282 {0, SSL_TXT_NULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
283 {0, SSL_TXT_KRB5, 0, SSL_kKRB5, SSL_aKRB5, 0, 0, 0, 0, 0, 0, 0},
284 {0, SSL_TXT_RSA, 0, SSL_kRSA, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0},
285 {0, SSL_TXT_ADH, 0, SSL_kEDH, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
286 {0, SSL_TXT_AECDH, 0, SSL_kEECDH, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
287 {0, SSL_TXT_PSK, 0, SSL_kPSK, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0},
289 /* symmetric encryption aliases */
290 {0, SSL_TXT_DES, 0, 0, 0, SSL_DES, 0, 0, 0, 0, 0, 0},
291 {0, SSL_TXT_3DES, 0, 0, 0, SSL_3DES, 0, 0, 0, 0, 0, 0},
292 {0, SSL_TXT_RC4, 0, 0, 0, SSL_RC4, 0, 0, 0, 0, 0, 0},
293 {0, SSL_TXT_RC2, 0, 0, 0, SSL_RC2, 0, 0, 0, 0, 0, 0},
294 {0, SSL_TXT_IDEA, 0, 0, 0, SSL_IDEA, 0, 0, 0, 0, 0, 0},
295 {0, SSL_TXT_SEED, 0, 0, 0, SSL_SEED, 0, 0, 0, 0, 0, 0},
296 {0, SSL_TXT_eNULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
297 {0, SSL_TXT_AES128, 0, 0, 0, SSL_AES128, 0, 0, 0, 0, 0, 0},
298 {0, SSL_TXT_AES256, 0, 0, 0, SSL_AES256, 0, 0, 0, 0, 0, 0},
299 {0, SSL_TXT_AES, 0, 0, 0, SSL_AES128 | SSL_AES256, 0, 0, 0, 0, 0, 0},
300 {0, SSL_TXT_CAMELLIA128, 0, 0, 0, SSL_CAMELLIA128, 0, 0, 0, 0, 0, 0},
301 {0, SSL_TXT_CAMELLIA256, 0, 0, 0, SSL_CAMELLIA256, 0, 0, 0, 0, 0, 0},
302 {0, SSL_TXT_CAMELLIA, 0, 0, 0, SSL_CAMELLIA128 | SSL_CAMELLIA256, 0, 0, 0,
306 {0, SSL_TXT_MD5, 0, 0, 0, 0, SSL_MD5, 0, 0, 0, 0, 0},
307 {0, SSL_TXT_SHA1, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
308 {0, SSL_TXT_SHA, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
309 {0, SSL_TXT_GOST94, 0, 0, 0, 0, SSL_GOST94, 0, 0, 0, 0, 0},
310 {0, SSL_TXT_GOST89MAC, 0, 0, 0, 0, SSL_GOST89MAC, 0, 0, 0, 0, 0},
312 /* protocol version aliases */
313 {0, SSL_TXT_SSLV2, 0, 0, 0, 0, 0, SSL_SSLV2, 0, 0, 0, 0},
314 {0, SSL_TXT_SSLV3, 0, 0, 0, 0, 0, SSL_SSLV3, 0, 0, 0, 0},
315 {0, SSL_TXT_TLSV1, 0, 0, 0, 0, 0, SSL_TLSV1, 0, 0, 0, 0},
318 {0, SSL_TXT_EXP, 0, 0, 0, 0, 0, 0, SSL_EXPORT, 0, 0, 0},
319 {0, SSL_TXT_EXPORT, 0, 0, 0, 0, 0, 0, SSL_EXPORT, 0, 0, 0},
321 /* strength classes */
322 {0, SSL_TXT_EXP40, 0, 0, 0, 0, 0, 0, SSL_EXP40, 0, 0, 0},
323 {0, SSL_TXT_EXP56, 0, 0, 0, 0, 0, 0, SSL_EXP56, 0, 0, 0},
324 {0, SSL_TXT_LOW, 0, 0, 0, 0, 0, 0, SSL_LOW, 0, 0, 0},
325 {0, SSL_TXT_MEDIUM, 0, 0, 0, 0, 0, 0, SSL_MEDIUM, 0, 0, 0},
326 {0, SSL_TXT_HIGH, 0, 0, 0, 0, 0, 0, SSL_HIGH, 0, 0, 0},
327 /* FIPS 140-2 approved ciphersuite */
328 {0, SSL_TXT_FIPS, 0, 0, 0, ~SSL_eNULL, 0, 0, SSL_FIPS, 0, 0, 0},
332 * Search for public key algorithm with given name and return its pkey_id if
333 * it is available. Otherwise return 0
335 #ifdef OPENSSL_NO_ENGINE
337 static int get_optional_pkey_id(const char *pkey_name)
339 const EVP_PKEY_ASN1_METHOD *ameth;
341 ameth = EVP_PKEY_asn1_find_str(NULL, pkey_name, -1);
343 EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
350 static int get_optional_pkey_id(const char *pkey_name)
352 const EVP_PKEY_ASN1_METHOD *ameth;
353 ENGINE *tmpeng = NULL;
355 ameth = EVP_PKEY_asn1_find_str(&tmpeng, pkey_name, -1);
357 EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
360 ENGINE_finish(tmpeng);
366 void ssl_load_ciphers(void)
368 ssl_cipher_methods[SSL_ENC_DES_IDX] = EVP_get_cipherbyname(SN_des_cbc);
369 ssl_cipher_methods[SSL_ENC_3DES_IDX] =
370 EVP_get_cipherbyname(SN_des_ede3_cbc);
371 ssl_cipher_methods[SSL_ENC_RC4_IDX] = EVP_get_cipherbyname(SN_rc4);
372 ssl_cipher_methods[SSL_ENC_RC2_IDX] = EVP_get_cipherbyname(SN_rc2_cbc);
373 #ifndef OPENSSL_NO_IDEA
374 ssl_cipher_methods[SSL_ENC_IDEA_IDX] = EVP_get_cipherbyname(SN_idea_cbc);
376 ssl_cipher_methods[SSL_ENC_IDEA_IDX] = NULL;
378 ssl_cipher_methods[SSL_ENC_AES128_IDX] =
379 EVP_get_cipherbyname(SN_aes_128_cbc);
380 ssl_cipher_methods[SSL_ENC_AES256_IDX] =
381 EVP_get_cipherbyname(SN_aes_256_cbc);
382 ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] =
383 EVP_get_cipherbyname(SN_camellia_128_cbc);
384 ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] =
385 EVP_get_cipherbyname(SN_camellia_256_cbc);
386 ssl_cipher_methods[SSL_ENC_GOST89_IDX] =
387 EVP_get_cipherbyname(SN_gost89_cnt);
388 ssl_cipher_methods[SSL_ENC_SEED_IDX] = EVP_get_cipherbyname(SN_seed_cbc);
390 ssl_digest_methods[SSL_MD_MD5_IDX] = EVP_get_digestbyname(SN_md5);
391 ssl_mac_secret_size[SSL_MD_MD5_IDX] =
392 EVP_MD_size(ssl_digest_methods[SSL_MD_MD5_IDX]);
393 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_MD5_IDX] >= 0);
394 ssl_digest_methods[SSL_MD_SHA1_IDX] = EVP_get_digestbyname(SN_sha1);
395 ssl_mac_secret_size[SSL_MD_SHA1_IDX] =
396 EVP_MD_size(ssl_digest_methods[SSL_MD_SHA1_IDX]);
397 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_SHA1_IDX] >= 0);
398 ssl_digest_methods[SSL_MD_GOST94_IDX] =
399 EVP_get_digestbyname(SN_id_GostR3411_94);
400 if (ssl_digest_methods[SSL_MD_GOST94_IDX]) {
401 ssl_mac_secret_size[SSL_MD_GOST94_IDX] =
402 EVP_MD_size(ssl_digest_methods[SSL_MD_GOST94_IDX]);
403 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_GOST94_IDX] >= 0);
405 ssl_digest_methods[SSL_MD_GOST89MAC_IDX] =
406 EVP_get_digestbyname(SN_id_Gost28147_89_MAC);
407 ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = get_optional_pkey_id("gost-mac");
408 if (ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) {
409 ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX] = 32;
414 #ifndef OPENSSL_NO_COMP
416 static int sk_comp_cmp(const SSL_COMP *const *a, const SSL_COMP *const *b)
418 return ((*a)->id - (*b)->id);
421 static void load_builtin_compressions(void)
423 int got_write_lock = 0;
425 CRYPTO_r_lock(CRYPTO_LOCK_SSL);
426 if (ssl_comp_methods == NULL) {
427 CRYPTO_r_unlock(CRYPTO_LOCK_SSL);
428 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
431 if (ssl_comp_methods == NULL) {
432 SSL_COMP *comp = NULL;
435 ssl_comp_methods = sk_SSL_COMP_new(sk_comp_cmp);
436 if (ssl_comp_methods != NULL) {
437 comp = (SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP));
439 comp->method = COMP_zlib();
440 if (comp->method && comp->method->type == NID_undef)
443 comp->id = SSL_COMP_ZLIB_IDX;
444 comp->name = comp->method->name;
445 sk_SSL_COMP_push(ssl_comp_methods, comp);
448 sk_SSL_COMP_sort(ssl_comp_methods);
455 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
457 CRYPTO_r_unlock(CRYPTO_LOCK_SSL);
461 int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
462 const EVP_MD **md, int *mac_pkey_type,
463 int *mac_secret_size, SSL_COMP **comp)
473 #ifndef OPENSSL_NO_COMP
474 load_builtin_compressions();
478 ctmp.id = s->compress_meth;
479 if (ssl_comp_methods != NULL) {
480 i = sk_SSL_COMP_find(ssl_comp_methods, &ctmp);
482 *comp = sk_SSL_COMP_value(ssl_comp_methods, i);
488 if ((enc == NULL) || (md == NULL))
491 switch (c->algorithm_enc) {
496 i = SSL_ENC_3DES_IDX;
505 i = SSL_ENC_IDEA_IDX;
508 i = SSL_ENC_NULL_IDX;
511 i = SSL_ENC_AES128_IDX;
514 i = SSL_ENC_AES256_IDX;
516 case SSL_CAMELLIA128:
517 i = SSL_ENC_CAMELLIA128_IDX;
519 case SSL_CAMELLIA256:
520 i = SSL_ENC_CAMELLIA256_IDX;
522 case SSL_eGOST2814789CNT:
523 i = SSL_ENC_GOST89_IDX;
526 i = SSL_ENC_SEED_IDX;
533 if ((i < 0) || (i >= SSL_ENC_NUM_IDX))
536 if (i == SSL_ENC_NULL_IDX)
537 *enc = EVP_enc_null();
539 *enc = ssl_cipher_methods[i];
542 switch (c->algorithm_mac) {
550 i = SSL_MD_GOST94_IDX;
553 i = SSL_MD_GOST89MAC_IDX;
559 if ((i < 0) || (i >= SSL_MD_NUM_IDX)) {
561 if (mac_pkey_type != NULL)
562 *mac_pkey_type = NID_undef;
563 if (mac_secret_size != NULL)
564 *mac_secret_size = 0;
567 *md = ssl_digest_methods[i];
568 if (mac_pkey_type != NULL)
569 *mac_pkey_type = ssl_mac_pkey_id[i];
570 if (mac_secret_size != NULL)
571 *mac_secret_size = ssl_mac_secret_size[i];
574 if ((*enc != NULL) && (*md != NULL)
575 && (!mac_pkey_type || *mac_pkey_type != NID_undef))
581 int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md)
583 if (idx < 0 || idx >= SSL_MD_NUM_IDX) {
586 if (ssl_handshake_digest_flag[idx] == 0)
588 *mask = ssl_handshake_digest_flag[idx];
589 *md = ssl_digest_methods[idx];
593 #define ITEM_SEP(a) \
594 (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
596 static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr,
603 if (curr->prev != NULL)
604 curr->prev->next = curr->next;
605 if (curr->next != NULL)
606 curr->next->prev = curr->prev;
607 (*tail)->next = curr;
613 static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr,
620 if (curr->next != NULL)
621 curr->next->prev = curr->prev;
622 if (curr->prev != NULL)
623 curr->prev->next = curr->next;
624 (*head)->prev = curr;
630 static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth,
631 unsigned long *enc, unsigned long *mac,
640 #ifdef OPENSSL_NO_RSA
644 #ifdef OPENSSL_NO_DSA
647 *mkey |= SSL_kDHr | SSL_kDHd; /* no such ciphersuites supported! */
650 *mkey |= SSL_kDHr | SSL_kDHd | SSL_kEDH;
653 #ifdef OPENSSL_NO_KRB5
657 #ifdef OPENSSL_NO_ECDSA
660 #ifdef OPENSSL_NO_ECDH
661 *mkey |= SSL_kECDHe | SSL_kECDHr;
664 #ifdef OPENSSL_NO_PSK
669 * Check for presence of GOST 34.10 algorithms, and if they do not
670 * present, disable appropriate auth and key exchange
672 if (!get_optional_pkey_id("gost94")) {
673 *auth |= SSL_aGOST94;
675 if (!get_optional_pkey_id("gost2001")) {
676 *auth |= SSL_aGOST01;
679 * Disable GOST key exchange if no GOST signature algs are available *
681 if ((*auth & (SSL_aGOST94 | SSL_aGOST01)) == (SSL_aGOST94 | SSL_aGOST01)) {
684 #ifdef SSL_FORBID_ENULL
688 *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX] == NULL) ? SSL_DES : 0;
689 *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES : 0;
690 *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX] == NULL) ? SSL_RC4 : 0;
691 *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX] == NULL) ? SSL_RC2 : 0;
692 *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA : 0;
693 *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128 : 0;
694 *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256 : 0;
696 (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] ==
697 NULL) ? SSL_CAMELLIA128 : 0;
699 (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] ==
700 NULL) ? SSL_CAMELLIA256 : 0;
702 (ssl_cipher_methods[SSL_ENC_GOST89_IDX] ==
703 NULL) ? SSL_eGOST2814789CNT : 0;
704 *enc |= (ssl_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED : 0;
706 *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX] == NULL) ? SSL_MD5 : 0;
707 *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1 : 0;
708 *mac |= (ssl_digest_methods[SSL_MD_GOST94_IDX] == NULL) ? SSL_GOST94 : 0;
709 *mac |= (ssl_digest_methods[SSL_MD_GOST89MAC_IDX] == NULL
710 || ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] ==
711 NID_undef) ? SSL_GOST89MAC : 0;
715 static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
717 unsigned long disabled_mkey,
718 unsigned long disabled_auth,
719 unsigned long disabled_enc,
720 unsigned long disabled_mac,
721 unsigned long disabled_ssl,
722 CIPHER_ORDER *co_list,
723 CIPHER_ORDER **head_p,
724 CIPHER_ORDER **tail_p)
730 * We have num_of_ciphers descriptions compiled in, depending on the
731 * method selected (SSLv2 and/or SSLv3, TLSv1 etc).
732 * These will later be sorted in a linked list with at most num
736 /* Get the initial list of ciphers */
737 co_list_num = 0; /* actual count of ciphers */
738 for (i = 0; i < num_of_ciphers; i++) {
739 c = ssl_method->get_cipher(i);
740 /* drop those that use any of that is not available */
741 if ((c != NULL) && c->valid &&
742 !(c->algorithm_mkey & disabled_mkey) &&
743 !(c->algorithm_auth & disabled_auth) &&
744 !(c->algorithm_enc & disabled_enc) &&
745 !(c->algorithm_mac & disabled_mac) &&
746 !(c->algorithm_ssl & disabled_ssl)) {
747 co_list[co_list_num].cipher = c;
748 co_list[co_list_num].next = NULL;
749 co_list[co_list_num].prev = NULL;
750 co_list[co_list_num].active = 0;
753 printf("\t%d: %s %lx %lx %lx\n", i, c->name, c->id,
754 c->algorithm_mkey, c->algorithm_auth);
755 #endif /* KSSL_DEBUG */
757 * if (!sk_push(ca_list,(char *)c)) goto err;
763 * Prepare linked list from list entries
765 if (co_list_num > 0) {
766 co_list[0].prev = NULL;
768 if (co_list_num > 1) {
769 co_list[0].next = &co_list[1];
771 for (i = 1; i < co_list_num - 1; i++) {
772 co_list[i].prev = &co_list[i - 1];
773 co_list[i].next = &co_list[i + 1];
776 co_list[co_list_num - 1].prev = &co_list[co_list_num - 2];
779 co_list[co_list_num - 1].next = NULL;
781 *head_p = &co_list[0];
782 *tail_p = &co_list[co_list_num - 1];
786 static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list,
787 int num_of_group_aliases,
788 unsigned long disabled_mkey,
789 unsigned long disabled_auth,
790 unsigned long disabled_enc,
791 unsigned long disabled_mac,
792 unsigned long disabled_ssl,
795 CIPHER_ORDER *ciph_curr;
796 const SSL_CIPHER **ca_curr;
798 unsigned long mask_mkey = ~disabled_mkey;
799 unsigned long mask_auth = ~disabled_auth;
800 unsigned long mask_enc = ~disabled_enc;
801 unsigned long mask_mac = ~disabled_mac;
802 unsigned long mask_ssl = ~disabled_ssl;
805 * First, add the real ciphers as already collected
809 while (ciph_curr != NULL) {
810 *ca_curr = ciph_curr->cipher;
812 ciph_curr = ciph_curr->next;
816 * Now we add the available ones from the cipher_aliases[] table.
817 * They represent either one or more algorithms, some of which
818 * in any affected category must be supported (set in enabled_mask),
819 * or represent a cipher strength value (will be added in any case because algorithms=0).
821 for (i = 0; i < num_of_group_aliases; i++) {
822 unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey;
823 unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth;
824 unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc;
825 unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac;
826 unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl;
829 if ((algorithm_mkey & mask_mkey) == 0)
833 if ((algorithm_auth & mask_auth) == 0)
837 if ((algorithm_enc & mask_enc) == 0)
841 if ((algorithm_mac & mask_mac) == 0)
845 if ((algorithm_ssl & mask_ssl) == 0)
848 *ca_curr = (SSL_CIPHER *)(cipher_aliases + i);
852 *ca_curr = NULL; /* end of list */
855 static void ssl_cipher_apply_rule(unsigned long cipher_id,
856 unsigned long alg_mkey,
857 unsigned long alg_auth,
858 unsigned long alg_enc,
859 unsigned long alg_mac,
860 unsigned long alg_ssl,
861 unsigned long algo_strength, int rule,
862 int strength_bits, CIPHER_ORDER **head_p,
863 CIPHER_ORDER **tail_p)
865 CIPHER_ORDER *head, *tail, *curr, *next, *last;
866 const SSL_CIPHER *cp;
870 printf("Applying rule %d with %08lx/%08lx/%08lx/%08lx/%08lx %08lx (%d)\n",
871 rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength,
875 if (rule == CIPHER_DEL)
876 reverse = 1; /* needed to maintain sorting between
877 * currently deleted ciphers */
900 next = reverse ? curr->prev : curr->next;
905 * Selection criteria is either the value of strength_bits
906 * or the algorithms used.
908 if (strength_bits >= 0) {
909 if (strength_bits != cp->strength_bits)
914 ("\nName: %s:\nAlgo = %08lx/%08lx/%08lx/%08lx/%08lx Algo_strength = %08lx\n",
915 cp->name, cp->algorithm_mkey, cp->algorithm_auth,
916 cp->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl,
919 if (algo_strength == SSL_EXP_MASK && SSL_C_IS_EXPORT(cp))
921 if (alg_ssl == ~SSL_SSLV2 && cp->algorithm_ssl == SSL_SSLV2)
923 if (alg_mkey && !(alg_mkey & cp->algorithm_mkey))
925 if (alg_auth && !(alg_auth & cp->algorithm_auth))
927 if (alg_enc && !(alg_enc & cp->algorithm_enc))
929 if (alg_mac && !(alg_mac & cp->algorithm_mac))
931 if (alg_ssl && !(alg_ssl & cp->algorithm_ssl))
933 if ((algo_strength & SSL_EXP_MASK)
934 && !(algo_strength & SSL_EXP_MASK & cp->algo_strength))
936 if ((algo_strength & SSL_STRONG_MASK)
937 && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength))
944 printf("Action = %d\n", rule);
947 /* add the cipher if it has not been added yet. */
948 if (rule == CIPHER_ADD) {
951 ll_append_tail(&head, curr, &tail);
955 /* Move the added cipher to this location */
956 else if (rule == CIPHER_ORD) {
959 ll_append_tail(&head, curr, &tail);
961 } else if (rule == CIPHER_DEL) {
965 * most recently deleted ciphersuites get best positions for
966 * any future CIPHER_ADD (note that the CIPHER_DEL loop works
967 * in reverse to maintain the order)
969 ll_append_head(&head, curr, &tail);
972 } else if (rule == CIPHER_KILL) {
977 curr->prev->next = curr->next;
981 if (curr->next != NULL)
982 curr->next->prev = curr->prev;
983 if (curr->prev != NULL)
984 curr->prev->next = curr->next;
994 static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p,
995 CIPHER_ORDER **tail_p)
997 int max_strength_bits, i, *number_uses;
1001 * This routine sorts the ciphers with descending strength. The sorting
1002 * must keep the pre-sorted sequence, so we apply the normal sorting
1003 * routine as '+' movement to the end of the list.
1005 max_strength_bits = 0;
1007 while (curr != NULL) {
1008 if (curr->active && (curr->cipher->strength_bits > max_strength_bits))
1009 max_strength_bits = curr->cipher->strength_bits;
1013 number_uses = OPENSSL_malloc((max_strength_bits + 1) * sizeof(int));
1015 SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT, ERR_R_MALLOC_FAILURE);
1018 memset(number_uses, 0, (max_strength_bits + 1) * sizeof(int));
1021 * Now find the strength_bits values actually used
1024 while (curr != NULL) {
1026 number_uses[curr->cipher->strength_bits]++;
1030 * Go through the list of used strength_bits values in descending
1033 for (i = max_strength_bits; i >= 0; i--)
1034 if (number_uses[i] > 0)
1035 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p,
1038 OPENSSL_free(number_uses);
1042 static int ssl_cipher_process_rulestr(const char *rule_str,
1043 CIPHER_ORDER **head_p,
1044 CIPHER_ORDER **tail_p,
1045 const SSL_CIPHER **ca_list)
1047 unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl,
1049 const char *l, *buf;
1050 int j, multi, found, rule, retval, ok, buflen;
1051 unsigned long cipher_id = 0;
1064 } else if (ch == '+') {
1067 } else if (ch == '!') {
1070 } else if (ch == '@') {
1071 rule = CIPHER_SPECIAL;
1093 #ifndef CHARSET_EBCDIC
1094 while (((ch >= 'A') && (ch <= 'Z')) ||
1095 ((ch >= '0') && (ch <= '9')) ||
1096 ((ch >= 'a') && (ch <= 'z')) || (ch == '-'))
1098 while (isalnum(ch) || (ch == '-'))
1107 * We hit something we cannot deal with,
1108 * it is no command or separator nor
1109 * alphanumeric, so we call this an error.
1111 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
1112 SSL_R_INVALID_COMMAND);
1118 if (rule == CIPHER_SPECIAL) {
1119 found = 0; /* unused -- avoid compiler warning */
1120 break; /* special treatment */
1123 /* check for multi-part specification */
1131 * Now search for the cipher alias in the ca_list. Be careful
1132 * with the strncmp, because the "buflen" limitation
1133 * will make the rule "ADH:SOME" and the cipher
1134 * "ADH-MY-CIPHER" look like a match for buflen=3.
1135 * So additionally check whether the cipher name found
1136 * has the correct length. We can save a strlen() call:
1137 * just checking for the '\0' at the right place is
1138 * sufficient, we have to strncmp() anyway. (We cannot
1139 * use strcmp(), because buf is not '\0' terminated.)
1143 while (ca_list[j]) {
1144 if (!strncmp(buf, ca_list[j]->name, buflen) &&
1145 (ca_list[j]->name[buflen] == '\0')) {
1153 break; /* ignore this entry */
1155 if (ca_list[j]->algorithm_mkey) {
1157 alg_mkey &= ca_list[j]->algorithm_mkey;
1163 alg_mkey = ca_list[j]->algorithm_mkey;
1166 if (ca_list[j]->algorithm_auth) {
1168 alg_auth &= ca_list[j]->algorithm_auth;
1174 alg_auth = ca_list[j]->algorithm_auth;
1177 if (ca_list[j]->algorithm_enc) {
1179 alg_enc &= ca_list[j]->algorithm_enc;
1185 alg_enc = ca_list[j]->algorithm_enc;
1188 if (ca_list[j]->algorithm_mac) {
1190 alg_mac &= ca_list[j]->algorithm_mac;
1196 alg_mac = ca_list[j]->algorithm_mac;
1199 if (ca_list[j]->algo_strength & SSL_EXP_MASK) {
1200 if (algo_strength & SSL_EXP_MASK) {
1202 (ca_list[j]->algo_strength & SSL_EXP_MASK) |
1204 if (!(algo_strength & SSL_EXP_MASK)) {
1209 algo_strength |= ca_list[j]->algo_strength & SSL_EXP_MASK;
1212 if (ca_list[j]->algo_strength & SSL_STRONG_MASK) {
1213 if (algo_strength & SSL_STRONG_MASK) {
1215 (ca_list[j]->algo_strength & SSL_STRONG_MASK) |
1217 if (!(algo_strength & SSL_STRONG_MASK)) {
1223 ca_list[j]->algo_strength & SSL_STRONG_MASK;
1226 if (ca_list[j]->valid) {
1228 * explicit ciphersuite found; its protocol version does not
1229 * become part of the search pattern!
1232 cipher_id = ca_list[j]->id;
1235 * not an explicit ciphersuite; only in this case, the
1236 * protocol version is considered part of the search pattern
1239 if (ca_list[j]->algorithm_ssl) {
1241 alg_ssl &= ca_list[j]->algorithm_ssl;
1247 alg_ssl = ca_list[j]->algorithm_ssl;
1256 * Ok, we have the rule, now apply it
1258 if (rule == CIPHER_SPECIAL) { /* special command */
1260 if ((buflen == 8) && !strncmp(buf, "STRENGTH", 8))
1261 ok = ssl_cipher_strength_sort(head_p, tail_p);
1263 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
1264 SSL_R_INVALID_COMMAND);
1268 * We do not support any "multi" options
1269 * together with "@", so throw away the
1270 * rest of the command, if any left, until
1271 * end or ':' is found.
1273 while ((*l != '\0') && !ITEM_SEP(*l))
1276 ssl_cipher_apply_rule(cipher_id,
1277 alg_mkey, alg_auth, alg_enc, alg_mac,
1278 alg_ssl, algo_strength, rule, -1, head_p,
1281 while ((*l != '\0') && !ITEM_SEP(*l))
1291 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, STACK_OF(SSL_CIPHER)
1292 **cipher_list, STACK_OF(SSL_CIPHER)
1293 **cipher_list_by_id,
1294 const char *rule_str)
1296 int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases;
1297 unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac,
1299 STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list;
1301 CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr;
1302 const SSL_CIPHER **ca_list = NULL;
1305 * Return with error if nothing to do.
1307 if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL)
1311 * To reduce the work to do we only want to process the compiled
1312 * in algorithms, so we first get the mask of disabled ciphers.
1314 ssl_cipher_get_disabled(&disabled_mkey, &disabled_auth, &disabled_enc,
1315 &disabled_mac, &disabled_ssl);
1318 * Now we have to collect the available ciphers from the compiled
1319 * in ciphers. We cannot get more than the number compiled in, so
1320 * it is used for allocation.
1322 num_of_ciphers = ssl_method->num_ciphers();
1324 printf("ssl_create_cipher_list() for %d ciphers\n", num_of_ciphers);
1325 #endif /* KSSL_DEBUG */
1327 (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_ciphers);
1328 if (co_list == NULL) {
1329 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1330 return (NULL); /* Failure */
1333 ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers,
1334 disabled_mkey, disabled_auth, disabled_enc,
1335 disabled_mac, disabled_ssl, co_list, &head,
1338 /* Now arrange all ciphers by preference: */
1341 * Everything else being equal, prefer ephemeral ECDH over other key
1342 * exchange mechanisms
1344 ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head,
1346 ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head,
1349 /* AES is our preferred symmetric cipher */
1350 ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head,
1353 /* Temporarily enable everything else for sorting */
1354 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
1356 /* Low priority for MD5 */
1357 ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head,
1361 * Move anonymous ciphers to the end. Usually, these will remain
1362 * disabled. (For applications that allow them, they aren't too bad, but
1363 * we prefer authenticated ciphers.)
1365 ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1368 /* Move ciphers without forward secrecy to the end */
1369 ssl_cipher_apply_rule(0, 0, SSL_aECDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1372 * ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1,
1375 ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1377 ssl_cipher_apply_rule(0, SSL_kPSK, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1379 ssl_cipher_apply_rule(0, SSL_kKRB5, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1382 /* RC4 is sort-of broken -- move the the end */
1383 ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head,
1387 * Now sort by symmetric encryption strength. The above ordering remains
1388 * in force within each class
1390 if (!ssl_cipher_strength_sort(&head, &tail)) {
1391 OPENSSL_free(co_list);
1395 /* Now disable everything (maintaining the ordering!) */
1396 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail);
1399 * We also need cipher aliases for selecting based on the rule_str.
1400 * There might be two types of entries in the rule_str: 1) names
1401 * of ciphers themselves 2) aliases for groups of ciphers.
1402 * For 1) we need the available ciphers and for 2) the cipher
1403 * groups of cipher_aliases added together in one list (otherwise
1404 * we would be happy with just the cipher_aliases table).
1406 num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER);
1407 num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
1408 ca_list = OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max);
1409 if (ca_list == NULL) {
1410 OPENSSL_free(co_list);
1411 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1412 return (NULL); /* Failure */
1414 ssl_cipher_collect_aliases(ca_list, num_of_group_aliases,
1415 disabled_mkey, disabled_auth, disabled_enc,
1416 disabled_mac, disabled_ssl, head);
1419 * If the rule_string begins with DEFAULT, apply the default rule
1420 * before using the (possibly available) additional rules.
1424 if (strncmp(rule_str, "DEFAULT", 7) == 0) {
1425 ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST,
1426 &head, &tail, ca_list);
1432 if (ok && (strlen(rule_p) > 0))
1433 ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list);
1435 OPENSSL_free((void *)ca_list); /* Not needed anymore */
1437 if (!ok) { /* Rule processing failure */
1438 OPENSSL_free(co_list);
1443 * Allocate new "cipherstack" for the result, return with error
1444 * if we cannot get one.
1446 if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) {
1447 OPENSSL_free(co_list);
1452 * The cipher selection for the list is done. The ciphers are added
1453 * to the resulting precedence to the STACK_OF(SSL_CIPHER).
1455 for (curr = head; curr != NULL; curr = curr->next) {
1457 sk_SSL_CIPHER_push(cipherstack, curr->cipher);
1459 printf("<%s>\n", curr->cipher->name);
1463 OPENSSL_free(co_list); /* Not needed any longer */
1465 tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack);
1466 if (tmp_cipher_list == NULL) {
1467 sk_SSL_CIPHER_free(cipherstack);
1470 if (*cipher_list != NULL)
1471 sk_SSL_CIPHER_free(*cipher_list);
1472 *cipher_list = cipherstack;
1473 if (*cipher_list_by_id != NULL)
1474 sk_SSL_CIPHER_free(*cipher_list_by_id);
1475 *cipher_list_by_id = tmp_cipher_list;
1476 (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,
1477 ssl_cipher_ptr_id_cmp);
1479 sk_SSL_CIPHER_sort(*cipher_list_by_id);
1480 return (cipherstack);
1483 char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
1485 int is_export, pkl, kl;
1486 const char *ver, *exp_str;
1487 const char *kx, *au, *enc, *mac;
1488 unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, alg2;
1490 static const char *format =
1491 "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx/%lx/%lx/%lx/%lx\n";
1493 static const char *format =
1494 "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n";
1495 #endif /* KSSL_DEBUG */
1497 alg_mkey = cipher->algorithm_mkey;
1498 alg_auth = cipher->algorithm_auth;
1499 alg_enc = cipher->algorithm_enc;
1500 alg_mac = cipher->algorithm_mac;
1501 alg_ssl = cipher->algorithm_ssl;
1503 alg2 = cipher->algorithm2;
1505 is_export = SSL_C_IS_EXPORT(cipher);
1506 pkl = SSL_C_EXPORT_PKEYLENGTH(cipher);
1507 kl = SSL_C_EXPORT_KEYLENGTH(cipher);
1508 exp_str = is_export ? " export" : "";
1510 if (alg_ssl & SSL_SSLV2)
1512 else if (alg_ssl & SSL_SSLV3)
1519 kx = is_export ? (pkl == 512 ? "RSA(512)" : "RSA(1024)") : "RSA";
1531 kx = is_export ? (pkl == 512 ? "DH(512)" : "DH(1024)") : "DH";
1590 enc = (is_export && kl == 5) ? "DES(40)" : "DES(56)";
1596 enc = is_export ? (kl == 5 ? "RC4(40)" : "RC4(56)")
1597 : ((alg2 & SSL2_CF_8_BYTE_ENC) ? "RC4(64)" : "RC4(128)");
1600 enc = is_export ? (kl == 5 ? "RC2(40)" : "RC2(56)") : "RC2(128)";
1614 case SSL_CAMELLIA128:
1615 enc = "Camellia(128)";
1617 case SSL_CAMELLIA256:
1618 enc = "Camellia(256)";
1623 case SSL_eGOST2814789CNT:
1624 enc = "GOST89(256)";
1651 buf = OPENSSL_malloc(len);
1653 return ("OPENSSL_malloc Error");
1654 } else if (len < 128)
1655 return ("Buffer too small");
1658 BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac,
1659 exp_str, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl);
1661 BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac,
1663 #endif /* KSSL_DEBUG */
1667 char *SSL_CIPHER_get_version(const SSL_CIPHER *c)
1673 i = (int)(c->id >> 24L);
1675 return ("TLSv1/SSLv3");
1682 /* return the actual cipher being used */
1683 const char *SSL_CIPHER_get_name(const SSL_CIPHER *c)
1690 /* number of bits for symmetric cipher */
1691 int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits)
1696 if (alg_bits != NULL)
1697 *alg_bits = c->alg_bits;
1698 ret = c->strength_bits;
1703 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n)
1708 if ((n == 0) || (sk == NULL))
1710 nn = sk_SSL_COMP_num(sk);
1711 for (i = 0; i < nn; i++) {
1712 ctmp = sk_SSL_COMP_value(sk, i);
1719 #ifdef OPENSSL_NO_COMP
1720 void *SSL_COMP_get_compression_methods(void)
1725 int SSL_COMP_add_compression_method(int id, void *cm)
1730 const char *SSL_COMP_get_name(const void *comp)
1735 STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
1737 load_builtin_compressions();
1738 return (ssl_comp_methods);
1741 int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
1745 if (cm == NULL || cm->type == NID_undef)
1749 * According to draft-ietf-tls-compression-04.txt, the
1750 * compression number ranges should be the following:
1752 * 0 to 63: methods defined by the IETF
1753 * 64 to 192: external party methods assigned by IANA
1754 * 193 to 255: reserved for private use
1756 if (id < 193 || id > 255) {
1757 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,
1758 SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE);
1763 comp = (SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP));
1766 load_builtin_compressions();
1767 if (ssl_comp_methods && sk_SSL_COMP_find(ssl_comp_methods, comp) >= 0) {
1770 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,
1771 SSL_R_DUPLICATE_COMPRESSION_ID);
1773 } else if ((ssl_comp_methods == NULL)
1774 || !sk_SSL_COMP_push(ssl_comp_methods, comp)) {
1777 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE);
1785 const char *SSL_COMP_get_name(const COMP_METHOD *comp)