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
170 static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={
171 NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL
174 #define SSL_COMP_NULL_IDX 0
175 #define SSL_COMP_ZLIB_IDX 1
176 #define SSL_COMP_NUM_IDX 2
178 static STACK_OF(SSL_COMP) *ssl_comp_methods=NULL;
180 #define SSL_MD_MD5_IDX 0
181 #define SSL_MD_SHA1_IDX 1
182 #define SSL_MD_GOST94_IDX 2
183 #define SSL_MD_GOST89MAC_IDX 3
184 #define SSL_MD_SHA256_IDX 4
185 #define SSL_MD_SHA384_IDX 5
186 /*Constant SSL_MAX_DIGEST equal to size of digests array should be
189 #define SSL_MD_NUM_IDX SSL_MAX_DIGEST
190 static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={
191 NULL,NULL,NULL,NULL,NULL,NULL
193 /* PKEY_TYPE for GOST89MAC is known in advance, but, because
194 * implementation is engine-provided, we'll fill it only if
195 * corresponding EVP_PKEY_METHOD is found
197 static int ssl_mac_pkey_id[SSL_MD_NUM_IDX]={
198 EVP_PKEY_HMAC,EVP_PKEY_HMAC,EVP_PKEY_HMAC,NID_undef,
199 EVP_PKEY_HMAC,EVP_PKEY_HMAC
202 static int ssl_mac_secret_size[SSL_MD_NUM_IDX]={
206 static int ssl_handshake_digest_flag[SSL_MD_NUM_IDX]={
207 SSL_HANDSHAKE_MAC_MD5,SSL_HANDSHAKE_MAC_SHA,
208 SSL_HANDSHAKE_MAC_GOST94, 0, SSL_HANDSHAKE_MAC_SHA256,
209 SSL_HANDSHAKE_MAC_SHA384
213 #define CIPHER_KILL 2
216 #define CIPHER_SPECIAL 5
218 typedef struct cipher_order_st
220 const SSL_CIPHER *cipher;
223 struct cipher_order_st *next,*prev;
226 static const SSL_CIPHER cipher_aliases[]={
227 /* "ALL" doesn't include eNULL (must be specifically enabled) */
228 {0,SSL_TXT_ALL,0, 0,0,~SSL_eNULL,0,0,0,0,0,0},
229 /* "COMPLEMENTOFALL" */
230 {0,SSL_TXT_CMPALL,0, 0,0,SSL_eNULL,0,0,0,0,0,0},
232 /* "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in ALL!) */
233 {0,SSL_TXT_CMPDEF,0, SSL_kEDH|SSL_kEECDH,SSL_aNULL,~SSL_eNULL,0,0,0,0,0,0},
235 /* key exchange aliases
236 * (some of those using only a single bit here combine
237 * multiple key exchange algs according to the RFCs,
238 * e.g. kEDH combines DHE_DSS and DHE_RSA) */
239 {0,SSL_TXT_kRSA,0, SSL_kRSA, 0,0,0,0,0,0,0,0},
241 {0,SSL_TXT_kDHr,0, SSL_kDHr, 0,0,0,0,0,0,0,0},
242 {0,SSL_TXT_kDHd,0, SSL_kDHd, 0,0,0,0,0,0,0,0},
243 {0,SSL_TXT_kDH,0, SSL_kDHr|SSL_kDHd,0,0,0,0,0,0,0,0},
244 {0,SSL_TXT_kEDH,0, SSL_kEDH, 0,0,0,0,0,0,0,0},
245 {0,SSL_TXT_kDHE,0, SSL_kEDH, 0,0,0,0,0,0,0,0},
246 {0,SSL_TXT_DH,0, SSL_kDHr|SSL_kDHd|SSL_kEDH,0,0,0,0,0,0,0,0},
248 {0,SSL_TXT_kKRB5,0, SSL_kKRB5, 0,0,0,0,0,0,0,0},
250 {0,SSL_TXT_kECDHr,0, SSL_kECDHr,0,0,0,0,0,0,0,0},
251 {0,SSL_TXT_kECDHe,0, SSL_kECDHe,0,0,0,0,0,0,0,0},
252 {0,SSL_TXT_kECDH,0, SSL_kECDHr|SSL_kECDHe,0,0,0,0,0,0,0,0},
253 {0,SSL_TXT_kEECDH,0, SSL_kEECDH,0,0,0,0,0,0,0,0},
254 {0,SSL_TXT_kECDHE,0, SSL_kEECDH,0,0,0,0,0,0,0,0},
255 {0,SSL_TXT_ECDH,0, SSL_kECDHr|SSL_kECDHe|SSL_kEECDH,0,0,0,0,0,0,0,0},
257 {0,SSL_TXT_kPSK,0, SSL_kPSK, 0,0,0,0,0,0,0,0},
258 {0,SSL_TXT_kSRP,0, SSL_kSRP, 0,0,0,0,0,0,0,0},
259 {0,SSL_TXT_kGOST,0, SSL_kGOST,0,0,0,0,0,0,0,0},
261 /* server authentication aliases */
262 {0,SSL_TXT_aRSA,0, 0,SSL_aRSA, 0,0,0,0,0,0,0},
263 {0,SSL_TXT_aDSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0},
264 {0,SSL_TXT_DSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0},
265 {0,SSL_TXT_aKRB5,0, 0,SSL_aKRB5, 0,0,0,0,0,0,0},
266 {0,SSL_TXT_aNULL,0, 0,SSL_aNULL, 0,0,0,0,0,0,0},
267 /* no such ciphersuites supported! */
268 {0,SSL_TXT_aDH,0, 0,SSL_aDH, 0,0,0,0,0,0,0},
269 {0,SSL_TXT_aECDH,0, 0,SSL_aECDH, 0,0,0,0,0,0,0},
270 {0,SSL_TXT_aECDSA,0, 0,SSL_aECDSA,0,0,0,0,0,0,0},
271 {0,SSL_TXT_ECDSA,0, 0,SSL_aECDSA, 0,0,0,0,0,0,0},
272 {0,SSL_TXT_aPSK,0, 0,SSL_aPSK, 0,0,0,0,0,0,0},
273 {0,SSL_TXT_aGOST94,0,0,SSL_aGOST94,0,0,0,0,0,0,0},
274 {0,SSL_TXT_aGOST01,0,0,SSL_aGOST01,0,0,0,0,0,0,0},
275 {0,SSL_TXT_aGOST,0,0,SSL_aGOST94|SSL_aGOST01,0,0,0,0,0,0,0},
276 {0,SSL_TXT_aSRP,0, 0,SSL_aSRP, 0,0,0,0,0,0,0},
278 /* aliases combining key exchange and server authentication */
279 {0,SSL_TXT_EDH,0, SSL_kEDH,~SSL_aNULL,0,0,0,0,0,0,0},
280 {0,SSL_TXT_DHE,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_ECDHE,0, SSL_kEECDH,~SSL_aNULL,0,0,0,0,0,0,0},
283 {0,SSL_TXT_NULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0},
284 {0,SSL_TXT_KRB5,0, SSL_kKRB5,SSL_aKRB5,0,0,0,0,0,0,0},
285 {0,SSL_TXT_RSA,0, SSL_kRSA,SSL_aRSA,0,0,0,0,0,0,0},
286 {0,SSL_TXT_ADH,0, SSL_kEDH,SSL_aNULL,0,0,0,0,0,0,0},
287 {0,SSL_TXT_AECDH,0, SSL_kEECDH,SSL_aNULL,0,0,0,0,0,0,0},
288 {0,SSL_TXT_PSK,0, SSL_kPSK,SSL_aPSK,0,0,0,0,0,0,0},
289 {0,SSL_TXT_SRP,0, SSL_kSRP,0,0,0,0,0,0,0,0},
292 /* symmetric encryption aliases */
293 {0,SSL_TXT_DES,0, 0,0,SSL_DES, 0,0,0,0,0,0},
294 {0,SSL_TXT_3DES,0, 0,0,SSL_3DES, 0,0,0,0,0,0},
295 {0,SSL_TXT_RC4,0, 0,0,SSL_RC4, 0,0,0,0,0,0},
296 {0,SSL_TXT_RC2,0, 0,0,SSL_RC2, 0,0,0,0,0,0},
297 {0,SSL_TXT_IDEA,0, 0,0,SSL_IDEA, 0,0,0,0,0,0},
298 {0,SSL_TXT_SEED,0, 0,0,SSL_SEED, 0,0,0,0,0,0},
299 {0,SSL_TXT_eNULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0},
300 {0,SSL_TXT_AES128,0, 0,0,SSL_AES128|SSL_AES128GCM,0,0,0,0,0,0},
301 {0,SSL_TXT_AES256,0, 0,0,SSL_AES256|SSL_AES256GCM,0,0,0,0,0,0},
302 {0,SSL_TXT_AES,0, 0,0,SSL_AES,0,0,0,0,0,0},
303 {0,SSL_TXT_AES_GCM,0, 0,0,SSL_AES128GCM|SSL_AES256GCM,0,0,0,0,0,0},
304 {0,SSL_TXT_CAMELLIA128,0,0,0,SSL_CAMELLIA128,0,0,0,0,0,0},
305 {0,SSL_TXT_CAMELLIA256,0,0,0,SSL_CAMELLIA256,0,0,0,0,0,0},
306 {0,SSL_TXT_CAMELLIA ,0,0,0,SSL_CAMELLIA128|SSL_CAMELLIA256,0,0,0,0,0,0},
309 {0,SSL_TXT_MD5,0, 0,0,0,SSL_MD5, 0,0,0,0,0},
310 {0,SSL_TXT_SHA1,0, 0,0,0,SSL_SHA1, 0,0,0,0,0},
311 {0,SSL_TXT_SHA,0, 0,0,0,SSL_SHA1, 0,0,0,0,0},
312 {0,SSL_TXT_GOST94,0, 0,0,0,SSL_GOST94, 0,0,0,0,0},
313 {0,SSL_TXT_GOST89MAC,0, 0,0,0,SSL_GOST89MAC, 0,0,0,0,0},
314 {0,SSL_TXT_SHA256,0, 0,0,0,SSL_SHA256, 0,0,0,0,0},
315 {0,SSL_TXT_SHA384,0, 0,0,0,SSL_SHA384, 0,0,0,0,0},
317 /* protocol version aliases */
318 {0,SSL_TXT_SSLV2,0, 0,0,0,0,SSL_SSLV2, 0,0,0,0},
319 {0,SSL_TXT_SSLV3,0, 0,0,0,0,SSL_SSLV3, 0,0,0,0},
320 {0,SSL_TXT_TLSV1,0, 0,0,0,0,SSL_TLSV1, 0,0,0,0},
321 {0,SSL_TXT_TLSV1_2,0, 0,0,0,0,SSL_TLSV1_2, 0,0,0,0},
324 {0,SSL_TXT_EXP,0, 0,0,0,0,0,SSL_EXPORT,0,0,0},
325 {0,SSL_TXT_EXPORT,0, 0,0,0,0,0,SSL_EXPORT,0,0,0},
327 /* strength classes */
328 {0,SSL_TXT_EXP40,0, 0,0,0,0,0,SSL_EXP40, 0,0,0},
329 {0,SSL_TXT_EXP56,0, 0,0,0,0,0,SSL_EXP56, 0,0,0},
330 {0,SSL_TXT_LOW,0, 0,0,0,0,0,SSL_LOW, 0,0,0},
331 {0,SSL_TXT_MEDIUM,0, 0,0,0,0,0,SSL_MEDIUM,0,0,0},
332 {0,SSL_TXT_HIGH,0, 0,0,0,0,0,SSL_HIGH, 0,0,0},
333 /* FIPS 140-2 approved ciphersuite */
334 {0,SSL_TXT_FIPS,0, 0,0,~SSL_eNULL,0,0,SSL_FIPS, 0,0,0},
335 /* "DHE-" aliases to "EDH-" labels (for forward compatibility) */
336 {0,SSL3_TXT_DHE_DSS_DES_40_CBC_SHA,0,
337 SSL_kDHE,SSL_aDSS,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_EXPORT|SSL_EXP40,0,0,0,},
338 {0,SSL3_TXT_DHE_DSS_DES_64_CBC_SHA,0,
339 SSL_kDHE,SSL_aDSS,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_LOW,0,0,0,},
340 {0,SSL3_TXT_DHE_DSS_DES_192_CBC3_SHA,0,
341 SSL_kDHE,SSL_aDSS,SSL_3DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,0,0,0,},
342 {0,SSL3_TXT_DHE_RSA_DES_40_CBC_SHA,0,
343 SSL_kDHE,SSL_aRSA,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_EXPORT|SSL_EXP40,0,0,0,},
344 {0,SSL3_TXT_DHE_RSA_DES_64_CBC_SHA,0,
345 SSL_kDHE,SSL_aRSA,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_LOW,0,0,0,},
346 {0,SSL3_TXT_DHE_RSA_DES_192_CBC3_SHA,0,
347 SSL_kDHE,SSL_aRSA,SSL_3DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,0,0,0,},
349 /* Search for public key algorithm with given name and
350 * return its pkey_id if it is available. Otherwise return 0
352 #ifdef OPENSSL_NO_ENGINE
354 static int get_optional_pkey_id(const char *pkey_name)
356 const EVP_PKEY_ASN1_METHOD *ameth;
358 ameth = EVP_PKEY_asn1_find_str(NULL,pkey_name,-1);
361 EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth);
368 static int get_optional_pkey_id(const char *pkey_name)
370 const EVP_PKEY_ASN1_METHOD *ameth;
371 ENGINE *tmpeng = NULL;
373 ameth = EVP_PKEY_asn1_find_str(&tmpeng,pkey_name,-1);
376 EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth);
378 if (tmpeng) ENGINE_finish(tmpeng);
384 void ssl_load_ciphers(void)
386 ssl_cipher_methods[SSL_ENC_DES_IDX]=
387 EVP_get_cipherbyname(SN_des_cbc);
388 ssl_cipher_methods[SSL_ENC_3DES_IDX]=
389 EVP_get_cipherbyname(SN_des_ede3_cbc);
390 ssl_cipher_methods[SSL_ENC_RC4_IDX]=
391 EVP_get_cipherbyname(SN_rc4);
392 ssl_cipher_methods[SSL_ENC_RC2_IDX]=
393 EVP_get_cipherbyname(SN_rc2_cbc);
394 #ifndef OPENSSL_NO_IDEA
395 ssl_cipher_methods[SSL_ENC_IDEA_IDX]=
396 EVP_get_cipherbyname(SN_idea_cbc);
398 ssl_cipher_methods[SSL_ENC_IDEA_IDX]= NULL;
400 ssl_cipher_methods[SSL_ENC_AES128_IDX]=
401 EVP_get_cipherbyname(SN_aes_128_cbc);
402 ssl_cipher_methods[SSL_ENC_AES256_IDX]=
403 EVP_get_cipherbyname(SN_aes_256_cbc);
404 ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX]=
405 EVP_get_cipherbyname(SN_camellia_128_cbc);
406 ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX]=
407 EVP_get_cipherbyname(SN_camellia_256_cbc);
408 ssl_cipher_methods[SSL_ENC_GOST89_IDX]=
409 EVP_get_cipherbyname(SN_gost89_cnt);
410 ssl_cipher_methods[SSL_ENC_SEED_IDX]=
411 EVP_get_cipherbyname(SN_seed_cbc);
413 ssl_cipher_methods[SSL_ENC_AES128GCM_IDX]=
414 EVP_get_cipherbyname(SN_aes_128_gcm);
415 ssl_cipher_methods[SSL_ENC_AES256GCM_IDX]=
416 EVP_get_cipherbyname(SN_aes_256_gcm);
418 ssl_digest_methods[SSL_MD_MD5_IDX]=
419 EVP_get_digestbyname(SN_md5);
420 ssl_mac_secret_size[SSL_MD_MD5_IDX]=
421 EVP_MD_size(ssl_digest_methods[SSL_MD_MD5_IDX]);
422 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_MD5_IDX] >= 0);
423 ssl_digest_methods[SSL_MD_SHA1_IDX]=
424 EVP_get_digestbyname(SN_sha1);
425 ssl_mac_secret_size[SSL_MD_SHA1_IDX]=
426 EVP_MD_size(ssl_digest_methods[SSL_MD_SHA1_IDX]);
427 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_SHA1_IDX] >= 0);
428 ssl_digest_methods[SSL_MD_GOST94_IDX]=
429 EVP_get_digestbyname(SN_id_GostR3411_94);
430 if (ssl_digest_methods[SSL_MD_GOST94_IDX])
432 ssl_mac_secret_size[SSL_MD_GOST94_IDX]=
433 EVP_MD_size(ssl_digest_methods[SSL_MD_GOST94_IDX]);
434 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_GOST94_IDX] >= 0);
436 ssl_digest_methods[SSL_MD_GOST89MAC_IDX]=
437 EVP_get_digestbyname(SN_id_Gost28147_89_MAC);
438 ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = get_optional_pkey_id("gost-mac");
439 if (ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) {
440 ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX]=32;
443 ssl_digest_methods[SSL_MD_SHA256_IDX]=
444 EVP_get_digestbyname(SN_sha256);
445 ssl_mac_secret_size[SSL_MD_SHA256_IDX]=
446 EVP_MD_size(ssl_digest_methods[SSL_MD_SHA256_IDX]);
447 ssl_digest_methods[SSL_MD_SHA384_IDX]=
448 EVP_get_digestbyname(SN_sha384);
449 ssl_mac_secret_size[SSL_MD_SHA384_IDX]=
450 EVP_MD_size(ssl_digest_methods[SSL_MD_SHA384_IDX]);
452 #ifndef OPENSSL_NO_COMP
454 static int sk_comp_cmp(const SSL_COMP * const *a,
455 const SSL_COMP * const *b)
457 return((*a)->id-(*b)->id);
460 static void load_builtin_compressions(void)
462 int got_write_lock = 0;
464 CRYPTO_r_lock(CRYPTO_LOCK_SSL);
465 if (ssl_comp_methods == NULL)
467 CRYPTO_r_unlock(CRYPTO_LOCK_SSL);
468 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
471 if (ssl_comp_methods == NULL)
473 SSL_COMP *comp = NULL;
476 ssl_comp_methods=sk_SSL_COMP_new(sk_comp_cmp);
477 if (ssl_comp_methods != NULL)
479 comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP));
482 comp->method=COMP_zlib();
484 && comp->method->type == NID_undef)
488 comp->id=SSL_COMP_ZLIB_IDX;
489 comp->name=comp->method->name;
490 sk_SSL_COMP_push(ssl_comp_methods,comp);
493 sk_SSL_COMP_sort(ssl_comp_methods);
500 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
502 CRYPTO_r_unlock(CRYPTO_LOCK_SSL);
506 int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
507 const EVP_MD **md, int *mac_pkey_type, int *mac_secret_size,SSL_COMP **comp)
513 if (c == NULL) return(0);
517 #ifndef OPENSSL_NO_COMP
518 load_builtin_compressions();
522 ctmp.id=s->compress_meth;
523 if (ssl_comp_methods != NULL)
525 i=sk_SSL_COMP_find(ssl_comp_methods,&ctmp);
527 *comp=sk_SSL_COMP_value(ssl_comp_methods,i);
533 if ((enc == NULL) || (md == NULL)) return(0);
535 switch (c->algorithm_enc)
556 i=SSL_ENC_AES128_IDX;
559 i=SSL_ENC_AES256_IDX;
561 case SSL_CAMELLIA128:
562 i=SSL_ENC_CAMELLIA128_IDX;
564 case SSL_CAMELLIA256:
565 i=SSL_ENC_CAMELLIA256_IDX;
567 case SSL_eGOST2814789CNT:
568 i=SSL_ENC_GOST89_IDX;
574 i=SSL_ENC_AES128GCM_IDX;
577 i=SSL_ENC_AES256GCM_IDX;
584 if ((i < 0) || (i >= SSL_ENC_NUM_IDX))
588 if (i == SSL_ENC_NULL_IDX)
591 *enc=ssl_cipher_methods[i];
594 switch (c->algorithm_mac)
609 i = SSL_MD_GOST94_IDX;
612 i = SSL_MD_GOST89MAC_IDX;
618 if ((i < 0) || (i >= SSL_MD_NUM_IDX))
621 if (mac_pkey_type!=NULL) *mac_pkey_type = NID_undef;
622 if (mac_secret_size!=NULL) *mac_secret_size = 0;
623 if (c->algorithm_mac == SSL_AEAD)
624 mac_pkey_type = NULL;
628 *md=ssl_digest_methods[i];
629 if (mac_pkey_type!=NULL) *mac_pkey_type = ssl_mac_pkey_id[i];
630 if (mac_secret_size!=NULL) *mac_secret_size = ssl_mac_secret_size[i];
633 if ((*enc != NULL) &&
634 (*md != NULL || (EVP_CIPHER_flags(*enc)&EVP_CIPH_FLAG_AEAD_CIPHER)) &&
635 (!mac_pkey_type||*mac_pkey_type != NID_undef))
637 const EVP_CIPHER *evp;
639 if (s->ssl_version>>8 != TLS1_VERSION_MAJOR ||
640 s->ssl_version < TLS1_VERSION)
648 if (c->algorithm_enc == SSL_RC4 &&
649 c->algorithm_mac == SSL_MD5 &&
650 (evp=EVP_get_cipherbyname("RC4-HMAC-MD5")))
651 *enc = evp, *md = NULL;
652 else if (c->algorithm_enc == SSL_AES128 &&
653 c->algorithm_mac == SSL_SHA1 &&
654 (evp=EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1")))
655 *enc = evp, *md = NULL;
656 else if (c->algorithm_enc == SSL_AES256 &&
657 c->algorithm_mac == SSL_SHA1 &&
658 (evp=EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1")))
659 *enc = evp, *md = NULL;
660 else if (c->algorithm_enc == SSL_AES128 &&
661 c->algorithm_mac == SSL_SHA256 &&
662 (evp=EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA256")))
663 *enc = evp, *md = NULL;
664 else if (c->algorithm_enc == SSL_AES256 &&
665 c->algorithm_mac == SSL_SHA256 &&
666 (evp=EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA256")))
667 *enc = evp, *md = NULL;
674 int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md)
676 if (idx <0||idx>=SSL_MD_NUM_IDX)
680 *mask = ssl_handshake_digest_flag[idx];
682 *md = ssl_digest_methods[idx];
688 #define ITEM_SEP(a) \
689 (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
691 static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr,
694 if (curr == *tail) return;
697 if (curr->prev != NULL)
698 curr->prev->next=curr->next;
699 if (curr->next != NULL)
700 curr->next->prev=curr->prev;
707 static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr,
710 if (curr == *head) return;
713 if (curr->next != NULL)
714 curr->next->prev=curr->prev;
715 if (curr->prev != NULL)
716 curr->prev->next=curr->next;
723 static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth, unsigned long *enc, unsigned long *mac, unsigned long *ssl)
731 #ifdef OPENSSL_NO_RSA
735 #ifdef OPENSSL_NO_DSA
739 *mkey |= SSL_kDHr|SSL_kDHd|SSL_kEDH;
742 #ifdef OPENSSL_NO_KRB5
746 #ifdef OPENSSL_NO_ECDSA
749 #ifdef OPENSSL_NO_ECDH
750 *mkey |= SSL_kECDHe|SSL_kECDHr;
753 #ifdef OPENSSL_NO_PSK
757 #ifdef OPENSSL_NO_SRP
760 /* Check for presence of GOST 34.10 algorithms, and if they
761 * do not present, disable appropriate auth and key exchange */
762 if (!get_optional_pkey_id("gost94")) {
763 *auth |= SSL_aGOST94;
765 if (!get_optional_pkey_id("gost2001")) {
766 *auth |= SSL_aGOST01;
768 /* Disable GOST key exchange if no GOST signature algs are available * */
769 if ((*auth & (SSL_aGOST94|SSL_aGOST01)) == (SSL_aGOST94|SSL_aGOST01)) {
772 #ifdef SSL_FORBID_ENULL
778 *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL) ? SSL_DES :0;
779 *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES:0;
780 *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL) ? SSL_RC4 :0;
781 *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL) ? SSL_RC2 :0;
782 *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA:0;
783 *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128:0;
784 *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256:0;
785 *enc |= (ssl_cipher_methods[SSL_ENC_AES128GCM_IDX] == NULL) ? SSL_AES128GCM:0;
786 *enc |= (ssl_cipher_methods[SSL_ENC_AES256GCM_IDX] == NULL) ? SSL_AES256GCM:0;
787 *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] == NULL) ? SSL_CAMELLIA128:0;
788 *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] == NULL) ? SSL_CAMELLIA256:0;
789 *enc |= (ssl_cipher_methods[SSL_ENC_GOST89_IDX] == NULL) ? SSL_eGOST2814789CNT:0;
790 *enc |= (ssl_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED:0;
792 *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0;
793 *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0;
794 *mac |= (ssl_digest_methods[SSL_MD_SHA256_IDX] == NULL) ? SSL_SHA256:0;
795 *mac |= (ssl_digest_methods[SSL_MD_SHA384_IDX] == NULL) ? SSL_SHA384:0;
796 *mac |= (ssl_digest_methods[SSL_MD_GOST94_IDX] == NULL) ? SSL_GOST94:0;
797 *mac |= (ssl_digest_methods[SSL_MD_GOST89MAC_IDX] == NULL || ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]==NID_undef)? SSL_GOST89MAC:0;
801 static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
803 unsigned long disabled_mkey, unsigned long disabled_auth,
804 unsigned long disabled_enc, unsigned long disabled_mac,
805 unsigned long disabled_ssl,
806 CIPHER_ORDER *co_list,
807 CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
813 * We have num_of_ciphers descriptions compiled in, depending on the
814 * method selected (SSLv2 and/or SSLv3, TLSv1 etc).
815 * These will later be sorted in a linked list with at most num
819 /* Get the initial list of ciphers */
820 co_list_num = 0; /* actual count of ciphers */
821 for (i = 0; i < num_of_ciphers; i++)
823 c = ssl_method->get_cipher(i);
824 /* drop those that use any of that is not available */
825 if ((c != NULL) && c->valid &&
827 (!FIPS_mode() || (c->algo_strength & SSL_FIPS)) &&
829 !(c->algorithm_mkey & disabled_mkey) &&
830 !(c->algorithm_auth & disabled_auth) &&
831 !(c->algorithm_enc & disabled_enc) &&
832 !(c->algorithm_mac & disabled_mac) &&
833 !(c->algorithm_ssl & disabled_ssl))
835 co_list[co_list_num].cipher = c;
836 co_list[co_list_num].next = NULL;
837 co_list[co_list_num].prev = NULL;
838 co_list[co_list_num].active = 0;
841 fprintf(stderr,"\t%d: %s %lx %lx %lx\n",i,c->name,c->id,c->algorithm_mkey,c->algorithm_auth);
842 #endif /* KSSL_DEBUG */
844 if (!sk_push(ca_list,(char *)c)) goto err;
850 * Prepare linked list from list entries
854 co_list[0].prev = NULL;
858 co_list[0].next = &co_list[1];
860 for (i = 1; i < co_list_num - 1; i++)
862 co_list[i].prev = &co_list[i - 1];
863 co_list[i].next = &co_list[i + 1];
866 co_list[co_list_num - 1].prev = &co_list[co_list_num - 2];
869 co_list[co_list_num - 1].next = NULL;
871 *head_p = &co_list[0];
872 *tail_p = &co_list[co_list_num - 1];
876 static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list,
877 int num_of_group_aliases,
878 unsigned long disabled_mkey, unsigned long disabled_auth,
879 unsigned long disabled_enc, unsigned long disabled_mac,
880 unsigned long disabled_ssl,
883 CIPHER_ORDER *ciph_curr;
884 const SSL_CIPHER **ca_curr;
886 unsigned long mask_mkey = ~disabled_mkey;
887 unsigned long mask_auth = ~disabled_auth;
888 unsigned long mask_enc = ~disabled_enc;
889 unsigned long mask_mac = ~disabled_mac;
890 unsigned long mask_ssl = ~disabled_ssl;
893 * First, add the real ciphers as already collected
897 while (ciph_curr != NULL)
899 *ca_curr = ciph_curr->cipher;
901 ciph_curr = ciph_curr->next;
905 * Now we add the available ones from the cipher_aliases[] table.
906 * They represent either one or more algorithms, some of which
907 * in any affected category must be supported (set in enabled_mask),
908 * or represent a cipher strength value (will be added in any case because algorithms=0).
910 for (i = 0; i < num_of_group_aliases; i++)
912 unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey;
913 unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth;
914 unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc;
915 unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac;
916 unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl;
919 if ((algorithm_mkey & mask_mkey) == 0)
923 if ((algorithm_auth & mask_auth) == 0)
927 if ((algorithm_enc & mask_enc) == 0)
931 if ((algorithm_mac & mask_mac) == 0)
935 if ((algorithm_ssl & mask_ssl) == 0)
938 *ca_curr = (SSL_CIPHER *)(cipher_aliases + i);
942 *ca_curr = NULL; /* end of list */
945 static void ssl_cipher_apply_rule(unsigned long cipher_id,
946 unsigned long alg_mkey, unsigned long alg_auth,
947 unsigned long alg_enc, unsigned long alg_mac,
948 unsigned long alg_ssl,
949 unsigned long algo_strength,
950 int rule, int strength_bits,
951 CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
953 CIPHER_ORDER *head, *tail, *curr, *next, *last;
954 const SSL_CIPHER *cp;
958 fprintf(stderr, "Applying rule %d with %08lx/%08lx/%08lx/%08lx/%08lx %08lx (%d)\n",
959 rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength, strength_bits);
962 if (rule == CIPHER_DEL)
963 reverse = 1; /* needed to maintain sorting between currently deleted ciphers */
982 if (curr == last) break;
986 if (curr == NULL) break;
988 next = reverse ? curr->prev : curr->next;
993 * Selection criteria is either the value of strength_bits
994 * or the algorithms used.
996 if (strength_bits >= 0)
998 if (strength_bits != cp->strength_bits)
1004 fprintf(stderr, "\nName: %s:\nAlgo = %08lx/%08lx/%08lx/%08lx/%08lx Algo_strength = %08lx\n", cp->name, cp->algorithm_mkey, cp->algorithm_auth, cp->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl, cp->algo_strength);
1006 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1007 if (cipher_id && cipher_id != cp->id)
1010 if (alg_mkey && !(alg_mkey & cp->algorithm_mkey))
1012 if (alg_auth && !(alg_auth & cp->algorithm_auth))
1014 if (alg_enc && !(alg_enc & cp->algorithm_enc))
1016 if (alg_mac && !(alg_mac & cp->algorithm_mac))
1018 if (alg_ssl && !(alg_ssl & cp->algorithm_ssl))
1020 if ((algo_strength & SSL_EXP_MASK) && !(algo_strength & SSL_EXP_MASK & cp->algo_strength))
1022 if ((algo_strength & SSL_STRONG_MASK) && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength))
1027 fprintf(stderr, "Action = %d\n", rule);
1030 /* add the cipher if it has not been added yet. */
1031 if (rule == CIPHER_ADD)
1036 ll_append_tail(&head, curr, &tail);
1040 /* Move the added cipher to this location */
1041 else if (rule == CIPHER_ORD)
1046 ll_append_tail(&head, curr, &tail);
1049 else if (rule == CIPHER_DEL)
1054 /* most recently deleted ciphersuites get best positions
1055 * for any future CIPHER_ADD (note that the CIPHER_DEL loop
1056 * works in reverse to maintain the order) */
1057 ll_append_head(&head, curr, &tail);
1061 else if (rule == CIPHER_KILL)
1067 curr->prev->next = curr->next;
1071 if (curr->next != NULL)
1072 curr->next->prev = curr->prev;
1073 if (curr->prev != NULL)
1074 curr->prev->next = curr->next;
1084 static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p,
1085 CIPHER_ORDER **tail_p)
1087 int max_strength_bits, i, *number_uses;
1091 * This routine sorts the ciphers with descending strength. The sorting
1092 * must keep the pre-sorted sequence, so we apply the normal sorting
1093 * routine as '+' movement to the end of the list.
1095 max_strength_bits = 0;
1097 while (curr != NULL)
1100 (curr->cipher->strength_bits > max_strength_bits))
1101 max_strength_bits = curr->cipher->strength_bits;
1105 number_uses = OPENSSL_malloc((max_strength_bits + 1) * sizeof(int));
1108 SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT,ERR_R_MALLOC_FAILURE);
1111 memset(number_uses, 0, (max_strength_bits + 1) * sizeof(int));
1114 * Now find the strength_bits values actually used
1117 while (curr != NULL)
1120 number_uses[curr->cipher->strength_bits]++;
1124 * Go through the list of used strength_bits values in descending
1127 for (i = max_strength_bits; i >= 0; i--)
1128 if (number_uses[i] > 0)
1129 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p, tail_p);
1131 OPENSSL_free(number_uses);
1135 static int ssl_cipher_process_rulestr(const char *rule_str,
1136 CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p,
1137 const SSL_CIPHER **ca_list)
1139 unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength;
1140 const char *l, *buf;
1141 int j, multi, found, rule, retval, ok, buflen;
1142 unsigned long cipher_id = 0;
1154 { rule = CIPHER_DEL; l++; }
1156 { rule = CIPHER_ORD; l++; }
1158 { rule = CIPHER_KILL; l++; }
1160 { rule = CIPHER_SPECIAL; l++; }
1162 { rule = CIPHER_ADD; }
1182 #ifndef CHARSET_EBCDIC
1183 while ( ((ch >= 'A') && (ch <= 'Z')) ||
1184 ((ch >= '0') && (ch <= '9')) ||
1185 ((ch >= 'a') && (ch <= 'z')) ||
1186 (ch == '-') || (ch == '.'))
1188 while ( isalnum(ch) || (ch == '-') || (ch == '.'))
1198 * We hit something we cannot deal with,
1199 * it is no command or separator nor
1200 * alphanumeric, so we call this an error.
1202 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
1203 SSL_R_INVALID_COMMAND);
1209 if (rule == CIPHER_SPECIAL)
1211 found = 0; /* unused -- avoid compiler warning */
1212 break; /* special treatment */
1215 /* check for multi-part specification */
1225 * Now search for the cipher alias in the ca_list. Be careful
1226 * with the strncmp, because the "buflen" limitation
1227 * will make the rule "ADH:SOME" and the cipher
1228 * "ADH-MY-CIPHER" look like a match for buflen=3.
1229 * So additionally check whether the cipher name found
1230 * has the correct length. We can save a strlen() call:
1231 * just checking for the '\0' at the right place is
1232 * sufficient, we have to strncmp() anyway. (We cannot
1233 * use strcmp(), because buf is not '\0' terminated.)
1239 if (!strncmp(buf, ca_list[j]->name, buflen) &&
1240 (ca_list[j]->name[buflen] == '\0'))
1250 break; /* ignore this entry */
1252 if (ca_list[j]->algorithm_mkey)
1256 alg_mkey &= ca_list[j]->algorithm_mkey;
1257 if (!alg_mkey) { found = 0; break; }
1260 alg_mkey = ca_list[j]->algorithm_mkey;
1263 if (ca_list[j]->algorithm_auth)
1267 alg_auth &= ca_list[j]->algorithm_auth;
1268 if (!alg_auth) { found = 0; break; }
1271 alg_auth = ca_list[j]->algorithm_auth;
1274 if (ca_list[j]->algorithm_enc)
1278 alg_enc &= ca_list[j]->algorithm_enc;
1279 if (!alg_enc) { found = 0; break; }
1282 alg_enc = ca_list[j]->algorithm_enc;
1285 if (ca_list[j]->algorithm_mac)
1289 alg_mac &= ca_list[j]->algorithm_mac;
1290 if (!alg_mac) { found = 0; break; }
1293 alg_mac = ca_list[j]->algorithm_mac;
1296 if (ca_list[j]->algo_strength & SSL_EXP_MASK)
1298 if (algo_strength & SSL_EXP_MASK)
1300 algo_strength &= (ca_list[j]->algo_strength & SSL_EXP_MASK) | ~SSL_EXP_MASK;
1301 if (!(algo_strength & SSL_EXP_MASK)) { found = 0; break; }
1304 algo_strength |= ca_list[j]->algo_strength & SSL_EXP_MASK;
1307 if (ca_list[j]->algo_strength & SSL_STRONG_MASK)
1309 if (algo_strength & SSL_STRONG_MASK)
1311 algo_strength &= (ca_list[j]->algo_strength & SSL_STRONG_MASK) | ~SSL_STRONG_MASK;
1312 if (!(algo_strength & SSL_STRONG_MASK)) { found = 0; break; }
1315 algo_strength |= ca_list[j]->algo_strength & SSL_STRONG_MASK;
1318 if (ca_list[j]->valid)
1320 /* explicit ciphersuite found; its protocol version
1321 * does not become part of the search pattern!*/
1323 cipher_id = ca_list[j]->id;
1327 /* not an explicit ciphersuite; only in this case, the
1328 * protocol version is considered part of the search pattern */
1330 if (ca_list[j]->algorithm_ssl)
1334 alg_ssl &= ca_list[j]->algorithm_ssl;
1335 if (!alg_ssl) { found = 0; break; }
1338 alg_ssl = ca_list[j]->algorithm_ssl;
1346 * Ok, we have the rule, now apply it
1348 if (rule == CIPHER_SPECIAL)
1349 { /* special command */
1351 if ((buflen == 8) &&
1352 !strncmp(buf, "STRENGTH", 8))
1353 ok = ssl_cipher_strength_sort(head_p, tail_p);
1355 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
1356 SSL_R_INVALID_COMMAND);
1360 * We do not support any "multi" options
1361 * together with "@", so throw away the
1362 * rest of the command, if any left, until
1363 * end or ':' is found.
1365 while ((*l != '\0') && !ITEM_SEP(*l))
1370 ssl_cipher_apply_rule(cipher_id,
1371 alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength,
1372 rule, -1, head_p, tail_p);
1376 while ((*l != '\0') && !ITEM_SEP(*l))
1379 if (*l == '\0') break; /* done */
1384 #ifndef OPENSSL_NO_EC
1385 static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c,
1386 const char **prule_str)
1388 unsigned int suiteb_flags = 0, suiteb_comb2 = 0;
1389 if (!strcmp(*prule_str, "SUITEB128"))
1390 suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
1391 else if (!strcmp(*prule_str, "SUITEB128ONLY"))
1392 suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY;
1393 else if (!strcmp(*prule_str, "SUITEB128C2"))
1396 suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
1398 else if (!strcmp(*prule_str, "SUITEB192"))
1399 suiteb_flags = SSL_CERT_FLAG_SUITEB_192_LOS;
1403 c->cert_flags &= ~SSL_CERT_FLAG_SUITEB_128_LOS;
1404 c->cert_flags |= suiteb_flags;
1407 suiteb_flags = c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS;
1411 /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */
1413 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS))
1415 if (meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
1416 SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
1417 SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE);
1419 SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
1420 SSL_R_ONLY_TLS_1_2_ALLOWED_IN_SUITEB_MODE);
1424 #ifndef OPENSSL_NO_ECDH
1425 switch(suiteb_flags)
1427 case SSL_CERT_FLAG_SUITEB_128_LOS:
1429 *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
1431 *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384";
1433 case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY:
1434 *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256";
1436 case SSL_CERT_FLAG_SUITEB_192_LOS:
1437 *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
1440 /* Set auto ECDH parameter determination */
1441 c->ecdh_tmp_auto = 1;
1444 SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST, SSL_R_ECDH_REQUIRED_FOR_SUITEB_MODE);
1451 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
1452 STACK_OF(SSL_CIPHER) **cipher_list,
1453 STACK_OF(SSL_CIPHER) **cipher_list_by_id,
1454 const char *rule_str, CERT *c)
1456 int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases;
1457 unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl;
1458 STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list;
1460 CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr;
1461 const SSL_CIPHER **ca_list = NULL;
1464 * Return with error if nothing to do.
1466 if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL)
1468 #ifndef OPENSSL_NO_EC
1469 if (!check_suiteb_cipher_list(ssl_method, c, &rule_str))
1474 * To reduce the work to do we only want to process the compiled
1475 * in algorithms, so we first get the mask of disabled ciphers.
1477 ssl_cipher_get_disabled(&disabled_mkey, &disabled_auth, &disabled_enc, &disabled_mac, &disabled_ssl);
1480 * Now we have to collect the available ciphers from the compiled
1481 * in ciphers. We cannot get more than the number compiled in, so
1482 * it is used for allocation.
1484 num_of_ciphers = ssl_method->num_ciphers();
1486 fprintf(stderr,"ssl_create_cipher_list() for %d ciphers\n", num_of_ciphers);
1487 #endif /* KSSL_DEBUG */
1488 co_list = (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_ciphers);
1489 if (co_list == NULL)
1491 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1492 return(NULL); /* Failure */
1495 ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers,
1496 disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl,
1497 co_list, &head, &tail);
1500 /* Now arrange all ciphers by preference: */
1502 /* Everything else being equal, prefer ephemeral ECDH over other key exchange mechanisms */
1503 ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
1504 ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail);
1506 /* AES is our preferred symmetric cipher */
1507 ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
1509 /* Temporarily enable everything else for sorting */
1510 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
1512 /* Low priority for MD5 */
1513 ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head, &tail);
1515 /* Move anonymous ciphers to the end. Usually, these will remain disabled.
1516 * (For applications that allow them, they aren't too bad, but we prefer
1517 * authenticated ciphers.) */
1518 ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1520 /* Move ciphers without forward secrecy to the end */
1521 ssl_cipher_apply_rule(0, 0, SSL_aECDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1522 /* ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); */
1523 ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1524 ssl_cipher_apply_rule(0, SSL_kPSK, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1525 ssl_cipher_apply_rule(0, SSL_kKRB5, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1527 /* RC4 is sort-of broken -- move the the end */
1528 ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1530 /* Now sort by symmetric encryption strength. The above ordering remains
1531 * in force within each class */
1532 if (!ssl_cipher_strength_sort(&head, &tail))
1534 OPENSSL_free(co_list);
1538 /* Now disable everything (maintaining the ordering!) */
1539 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail);
1543 * We also need cipher aliases for selecting based on the rule_str.
1544 * There might be two types of entries in the rule_str: 1) names
1545 * of ciphers themselves 2) aliases for groups of ciphers.
1546 * For 1) we need the available ciphers and for 2) the cipher
1547 * groups of cipher_aliases added together in one list (otherwise
1548 * we would be happy with just the cipher_aliases table).
1550 num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER);
1551 num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
1552 ca_list = OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max);
1553 if (ca_list == NULL)
1555 OPENSSL_free(co_list);
1556 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1557 return(NULL); /* Failure */
1559 ssl_cipher_collect_aliases(ca_list, num_of_group_aliases,
1560 disabled_mkey, disabled_auth, disabled_enc,
1561 disabled_mac, disabled_ssl, head);
1564 * If the rule_string begins with DEFAULT, apply the default rule
1565 * before using the (possibly available) additional rules.
1569 if (strncmp(rule_str,"DEFAULT",7) == 0)
1571 ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST,
1572 &head, &tail, ca_list);
1578 if (ok && (strlen(rule_p) > 0))
1579 ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list);
1581 OPENSSL_free((void *)ca_list); /* Not needed anymore */
1584 { /* Rule processing failure */
1585 OPENSSL_free(co_list);
1590 * Allocate new "cipherstack" for the result, return with error
1591 * if we cannot get one.
1593 if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL)
1595 OPENSSL_free(co_list);
1600 * The cipher selection for the list is done. The ciphers are added
1601 * to the resulting precedence to the STACK_OF(SSL_CIPHER).
1603 for (curr = head; curr != NULL; curr = curr->next)
1606 if (curr->active && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS))
1611 sk_SSL_CIPHER_push(cipherstack, curr->cipher);
1613 fprintf(stderr, "<%s>\n",curr->cipher->name);
1617 OPENSSL_free(co_list); /* Not needed any longer */
1619 tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack);
1620 if (tmp_cipher_list == NULL)
1622 sk_SSL_CIPHER_free(cipherstack);
1625 if (*cipher_list != NULL)
1626 sk_SSL_CIPHER_free(*cipher_list);
1627 *cipher_list = cipherstack;
1628 if (*cipher_list_by_id != NULL)
1629 sk_SSL_CIPHER_free(*cipher_list_by_id);
1630 *cipher_list_by_id = tmp_cipher_list;
1631 (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp);
1633 sk_SSL_CIPHER_sort(*cipher_list_by_id);
1634 return(cipherstack);
1637 char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
1639 int is_export,pkl,kl;
1640 const char *ver,*exp_str;
1641 const char *kx,*au,*enc,*mac;
1642 unsigned long alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl,alg2;
1644 static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx/%lx/%lx/%lx/%lx\n";
1646 static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n";
1647 #endif /* KSSL_DEBUG */
1649 alg_mkey = cipher->algorithm_mkey;
1650 alg_auth = cipher->algorithm_auth;
1651 alg_enc = cipher->algorithm_enc;
1652 alg_mac = cipher->algorithm_mac;
1653 alg_ssl = cipher->algorithm_ssl;
1655 alg2=cipher->algorithm2;
1657 is_export=SSL_C_IS_EXPORT(cipher);
1658 pkl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1659 kl=SSL_C_EXPORT_KEYLENGTH(cipher);
1660 exp_str=is_export?" export":"";
1662 if (alg_ssl & SSL_SSLV2)
1664 else if (alg_ssl & SSL_SSLV3)
1666 else if (alg_ssl & SSL_TLSV1_2)
1674 kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA";
1686 kx=is_export?(pkl == 512 ? "DH(512)" : "DH(1024)"):"DH";
1753 enc=(is_export && kl == 5)?"DES(40)":"DES(56)";
1759 enc=is_export?(kl == 5 ? "RC4(40)" : "RC4(56)")
1760 :((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)");
1763 enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)";
1783 case SSL_CAMELLIA128:
1784 enc="Camellia(128)";
1786 case SSL_CAMELLIA256:
1787 enc="Camellia(256)";
1792 case SSL_eGOST2814789CNT:
1831 buf=OPENSSL_malloc(len);
1832 if (buf == NULL) return("OPENSSL_malloc Error");
1835 return("Buffer too small");
1838 BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str,alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl);
1840 BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str);
1841 #endif /* KSSL_DEBUG */
1845 char *SSL_CIPHER_get_version(const SSL_CIPHER *c)
1849 if (c == NULL) return("(NONE)");
1850 i=(int)(c->id>>24L);
1852 return("TLSv1/SSLv3");
1859 /* return the actual cipher being used */
1860 const char *SSL_CIPHER_get_name(const SSL_CIPHER *c)
1867 /* number of bits for symmetric cipher */
1868 int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits)
1874 if (alg_bits != NULL) *alg_bits = c->alg_bits;
1875 ret = c->strength_bits;
1880 unsigned long SSL_CIPHER_get_id(const SSL_CIPHER *c)
1885 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n)
1890 if ((n == 0) || (sk == NULL)) return(NULL);
1891 nn=sk_SSL_COMP_num(sk);
1892 for (i=0; i<nn; i++)
1894 ctmp=sk_SSL_COMP_value(sk,i);
1901 #ifdef OPENSSL_NO_COMP
1902 void *SSL_COMP_get_compression_methods(void)
1906 int SSL_COMP_add_compression_method(int id, void *cm)
1911 const char *SSL_COMP_get_name(const void *comp)
1916 STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
1918 load_builtin_compressions();
1919 return(ssl_comp_methods);
1922 STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) *meths)
1924 STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
1925 ssl_comp_methods = meths;
1929 static void cmeth_free(SSL_COMP *cm)
1934 void SSL_COMP_free_compression_methods(void)
1936 STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
1937 ssl_comp_methods = NULL;
1938 sk_SSL_COMP_pop_free(old_meths, cmeth_free);
1941 int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
1945 if (cm == NULL || cm->type == NID_undef)
1949 * According to draft-ietf-tls-compression-04.txt, the
1950 * compression number ranges should be the following:
1952 * 0 to 63: methods defined by the IETF
1953 * 64 to 192: external party methods assigned by IANA
1954 * 193 to 255: reserved for private use
1956 if (id < 193 || id > 255)
1958 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE);
1963 comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP));
1966 load_builtin_compressions();
1967 if (ssl_comp_methods
1968 && sk_SSL_COMP_find(ssl_comp_methods,comp) >= 0)
1972 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_DUPLICATE_COMPRESSION_ID);
1975 else if ((ssl_comp_methods == NULL)
1976 || !sk_SSL_COMP_push(ssl_comp_methods,comp))
1980 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,ERR_R_MALLOC_FAILURE);
1990 const char *SSL_COMP_get_name(const COMP_METHOD *comp)
1997 /* For a cipher return the index corresponding to the certificate type */
1998 int ssl_cipher_get_cert_index(const SSL_CIPHER *c)
2000 unsigned long alg_k, alg_a;
2002 alg_k = c->algorithm_mkey;
2003 alg_a = c->algorithm_auth;
2005 if (alg_k & (SSL_kECDHr|SSL_kECDHe))
2007 /* we don't need to look at SSL_kEECDH
2008 * since no certificate is needed for
2009 * anon ECDH and for authenticated
2010 * EECDH, the check for the auth
2011 * algorithm will set i correctly
2012 * NOTE: For ECDH-RSA, we need an ECC
2013 * not an RSA cert but for EECDH-RSA
2014 * we need an RSA cert. Placing the
2015 * checks for SSL_kECDH before RSA
2016 * checks ensures the correct cert is chosen.
2018 return SSL_PKEY_ECC;
2020 else if (alg_a & SSL_aECDSA)
2021 return SSL_PKEY_ECC;
2022 else if (alg_k & SSL_kDHr)
2023 return SSL_PKEY_DH_RSA;
2024 else if (alg_k & SSL_kDHd)
2025 return SSL_PKEY_DH_DSA;
2026 else if (alg_a & SSL_aDSS)
2027 return SSL_PKEY_DSA_SIGN;
2028 else if (alg_a & SSL_aRSA)
2029 return SSL_PKEY_RSA_ENC;
2030 else if (alg_a & SSL_aKRB5)
2031 /* VRS something else here? */
2033 else if (alg_a & SSL_aGOST94)
2034 return SSL_PKEY_GOST94;
2035 else if (alg_a & SSL_aGOST01)
2036 return SSL_PKEY_GOST01;
2040 const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr)
2042 const SSL_CIPHER *c;
2043 c = ssl->method->get_cipher_by_char(ptr);
2044 if (c == NULL || c->valid == 0)
2049 const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr)
2051 return ssl->method->get_cipher_by_char(ptr);