1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
57 /* ====================================================================
58 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
60 * Redistribution and use in source and binary forms, with or without
61 * modification, are permitted provided that the following conditions
64 * 1. Redistributions of source code must retain the above copyright
65 * notice, this list of conditions and the following disclaimer.
67 * 2. Redistributions in binary form must reproduce the above copyright
68 * notice, this list of conditions and the following disclaimer in
69 * the documentation and/or other materials provided with the
72 * 3. All advertising materials mentioning features or use of this
73 * software must display the following acknowledgment:
74 * "This product includes software developed by the OpenSSL Project
75 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
78 * endorse or promote products derived from this software without
79 * prior written permission. For written permission, please contact
80 * openssl-core@openssl.org.
82 * 5. Products derived from this software may not be called "OpenSSL"
83 * nor may "OpenSSL" appear in their names without prior written
84 * permission of the OpenSSL Project.
86 * 6. Redistributions of any form whatsoever must retain the following
88 * "This product includes software developed by the OpenSSL Project
89 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
92 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
94 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
95 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
96 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
97 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
98 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
99 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
100 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
101 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
102 * OF THE POSSIBILITY OF SUCH DAMAGE.
103 * ====================================================================
105 * This product includes cryptographic software written by Eric Young
106 * (eay@cryptsoft.com). This product includes software written by Tim
107 * Hudson (tjh@cryptsoft.com).
110 /* ====================================================================
111 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
112 * ECC cipher suite support in OpenSSL originally developed by
113 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 /* ====================================================================
116 * Copyright 2005 Nokia. All rights reserved.
118 * The portions of the attached software ("Contribution") is developed by
119 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
122 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
123 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
124 * support (see RFC 4279) to OpenSSL.
126 * No patent licenses or other rights except those expressly stated in
127 * the OpenSSL open source license shall be deemed granted or received
128 * expressly, by implication, estoppel, or otherwise.
130 * No assurances are provided by Nokia that the Contribution does not
131 * infringe the patent or other intellectual property rights of any third
132 * party or that the license provides you with all the necessary rights
133 * to make use of the Contribution.
135 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
136 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
137 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
138 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
143 #include <openssl/objects.h>
144 #include <openssl/comp.h>
145 #include <openssl/engine.h>
146 #include "internal/threads.h"
147 #include "ssl_locl.h"
149 #define SSL_ENC_DES_IDX 0
150 #define SSL_ENC_3DES_IDX 1
151 #define SSL_ENC_RC4_IDX 2
152 #define SSL_ENC_RC2_IDX 3
153 #define SSL_ENC_IDEA_IDX 4
154 #define SSL_ENC_NULL_IDX 5
155 #define SSL_ENC_AES128_IDX 6
156 #define SSL_ENC_AES256_IDX 7
157 #define SSL_ENC_CAMELLIA128_IDX 8
158 #define SSL_ENC_CAMELLIA256_IDX 9
159 #define SSL_ENC_GOST89_IDX 10
160 #define SSL_ENC_SEED_IDX 11
161 #define SSL_ENC_AES128GCM_IDX 12
162 #define SSL_ENC_AES256GCM_IDX 13
163 #define SSL_ENC_AES128CCM_IDX 14
164 #define SSL_ENC_AES256CCM_IDX 15
165 #define SSL_ENC_AES128CCM8_IDX 16
166 #define SSL_ENC_AES256CCM8_IDX 17
167 #define SSL_ENC_GOST8912_IDX 18
168 #define SSL_ENC_CHACHA_IDX 19
169 #define SSL_ENC_NUM_IDX 20
171 /* NB: make sure indices in these tables match values above */
178 /* Table of NIDs for each cipher */
179 static const ssl_cipher_table ssl_cipher_table_cipher
[SSL_ENC_NUM_IDX
] = {
180 {SSL_DES
, NID_des_cbc
}, /* SSL_ENC_DES_IDX 0 */
181 {SSL_3DES
, NID_des_ede3_cbc
}, /* SSL_ENC_3DES_IDX 1 */
182 {SSL_RC4
, NID_rc4
}, /* SSL_ENC_RC4_IDX 2 */
183 {SSL_RC2
, NID_rc2_cbc
}, /* SSL_ENC_RC2_IDX 3 */
184 {SSL_IDEA
, NID_idea_cbc
}, /* SSL_ENC_IDEA_IDX 4 */
185 {SSL_eNULL
, NID_undef
}, /* SSL_ENC_NULL_IDX 5 */
186 {SSL_AES128
, NID_aes_128_cbc
}, /* SSL_ENC_AES128_IDX 6 */
187 {SSL_AES256
, NID_aes_256_cbc
}, /* SSL_ENC_AES256_IDX 7 */
188 {SSL_CAMELLIA128
, NID_camellia_128_cbc
}, /* SSL_ENC_CAMELLIA128_IDX 8 */
189 {SSL_CAMELLIA256
, NID_camellia_256_cbc
}, /* SSL_ENC_CAMELLIA256_IDX 9 */
190 {SSL_eGOST2814789CNT
, NID_gost89_cnt
}, /* SSL_ENC_GOST89_IDX 10 */
191 {SSL_SEED
, NID_seed_cbc
}, /* SSL_ENC_SEED_IDX 11 */
192 {SSL_AES128GCM
, NID_aes_128_gcm
}, /* SSL_ENC_AES128GCM_IDX 12 */
193 {SSL_AES256GCM
, NID_aes_256_gcm
}, /* SSL_ENC_AES256GCM_IDX 13 */
194 {SSL_AES128CCM
, NID_aes_128_ccm
}, /* SSL_ENC_AES128CCM_IDX 14 */
195 {SSL_AES256CCM
, NID_aes_256_ccm
}, /* SSL_ENC_AES256CCM_IDX 15 */
196 {SSL_AES128CCM8
, NID_aes_128_ccm
}, /* SSL_ENC_AES128CCM8_IDX 16 */
197 {SSL_AES256CCM8
, NID_aes_256_ccm
}, /* SSL_ENC_AES256CCM8_IDX 17 */
198 {SSL_eGOST2814789CNT12
, NID_gost89_cnt_12
}, /* SSL_ENC_GOST8912_IDX */
199 {SSL_CHACHA20POLY1305
, NID_chacha20_poly1305
},
202 static const EVP_CIPHER
*ssl_cipher_methods
[SSL_ENC_NUM_IDX
] = {
203 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
207 #define SSL_COMP_NULL_IDX 0
208 #define SSL_COMP_ZLIB_IDX 1
209 #define SSL_COMP_NUM_IDX 2
211 static STACK_OF(SSL_COMP
) *ssl_comp_methods
= NULL
;
213 #ifndef OPENSSL_NO_COMP
214 static CRYPTO_ONCE ssl_load_builtin_comp_once
= CRYPTO_ONCE_STATIC_INIT
;
218 * Constant SSL_MAX_DIGEST equal to size of digests array should be defined
222 #define SSL_MD_NUM_IDX SSL_MAX_DIGEST
224 /* NB: make sure indices in this table matches values above */
225 static const ssl_cipher_table ssl_cipher_table_mac
[SSL_MD_NUM_IDX
] = {
226 {SSL_MD5
, NID_md5
}, /* SSL_MD_MD5_IDX 0 */
227 {SSL_SHA1
, NID_sha1
}, /* SSL_MD_SHA1_IDX 1 */
228 {SSL_GOST94
, NID_id_GostR3411_94
}, /* SSL_MD_GOST94_IDX 2 */
229 {SSL_GOST89MAC
, NID_id_Gost28147_89_MAC
}, /* SSL_MD_GOST89MAC_IDX 3 */
230 {SSL_SHA256
, NID_sha256
}, /* SSL_MD_SHA256_IDX 4 */
231 {SSL_SHA384
, NID_sha384
}, /* SSL_MD_SHA384_IDX 5 */
232 {SSL_GOST12_256
, NID_id_GostR3411_2012_256
}, /* SSL_MD_GOST12_256_IDX 6 */
233 {SSL_GOST89MAC12
, NID_gost_mac_12
}, /* SSL_MD_GOST89MAC12_IDX 7 */
234 {SSL_GOST12_512
, NID_id_GostR3411_2012_512
}, /* SSL_MD_GOST12_512_IDX 8 */
235 {0, NID_md5_sha1
}, /* SSL_MD_MD5_SHA1_IDX 9 */
236 {0, NID_sha224
}, /* SSL_MD_SHA224_IDX 10 */
237 {0, NID_sha512
} /* SSL_MD_SHA512_IDX 11 */
240 static const EVP_MD
*ssl_digest_methods
[SSL_MD_NUM_IDX
] = {
241 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
244 static const ssl_cipher_table ssl_cipher_table_kx
[] = {
245 { SSL_kRSA
, NID_kx_rsa
},
246 { SSL_kECDHE
, NID_kx_ecdhe
},
247 { SSL_kDHE
, NID_kx_dhe
},
248 { SSL_kECDHEPSK
, NID_kx_ecdhe_psk
},
249 { SSL_kDHEPSK
, NID_kx_dhe_psk
},
250 { SSL_kRSAPSK
, NID_kx_rsa_psk
},
251 { SSL_kPSK
, NID_kx_psk
},
252 { SSL_kSRP
, NID_kx_srp
},
253 { SSL_kGOST
, NID_kx_gost
}
256 static const ssl_cipher_table ssl_cipher_table_auth
[] = {
257 { SSL_aRSA
, NID_auth_rsa
},
258 { SSL_aECDSA
, NID_auth_ecdsa
},
259 { SSL_aPSK
, NID_auth_psk
},
260 { SSL_aDSS
, NID_auth_dss
},
261 { SSL_aGOST01
, NID_auth_gost01
},
262 { SSL_aGOST12
, NID_auth_gost12
},
263 { SSL_aSRP
, NID_auth_srp
},
264 { SSL_aNULL
, NID_auth_null
}
267 /* Utility function for table lookup */
268 static int ssl_cipher_info_find(const ssl_cipher_table
* table
,
269 size_t table_cnt
, uint32_t mask
)
272 for (i
= 0; i
< table_cnt
; i
++, table
++) {
273 if (table
->mask
== mask
)
279 #define ssl_cipher_info_lookup(table, x) \
280 ssl_cipher_info_find(table, OSSL_NELEM(table), x)
283 * PKEY_TYPE for GOST89MAC is known in advance, but, because implementation
284 * is engine-provided, we'll fill it only if corresponding EVP_PKEY_METHOD is
287 static int ssl_mac_pkey_id
[SSL_MD_NUM_IDX
] = {
288 /* MD5, SHA, GOST94, MAC89 */
289 EVP_PKEY_HMAC
, EVP_PKEY_HMAC
, EVP_PKEY_HMAC
, NID_undef
,
290 /* SHA256, SHA384, GOST2012_256, MAC89-12 */
291 EVP_PKEY_HMAC
, EVP_PKEY_HMAC
, EVP_PKEY_HMAC
, NID_undef
,
296 static int ssl_mac_secret_size
[SSL_MD_NUM_IDX
] = {
297 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
301 #define CIPHER_KILL 2
304 #define CIPHER_SPECIAL 5
306 * Bump the ciphers to the top of the list.
307 * This rule isn't currently supported by the public cipherstring API.
309 #define CIPHER_BUMP 6
311 typedef struct cipher_order_st
{
312 const SSL_CIPHER
*cipher
;
315 struct cipher_order_st
*next
, *prev
;
318 static const SSL_CIPHER cipher_aliases
[] = {
319 /* "ALL" doesn't include eNULL (must be specifically enabled) */
320 {0, SSL_TXT_ALL
, 0, 0, 0, ~SSL_eNULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0},
321 /* "COMPLEMENTOFALL" */
322 {0, SSL_TXT_CMPALL
, 0, 0, 0, SSL_eNULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0},
325 * "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in
328 {0, SSL_TXT_CMPDEF
, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_NOT_DEFAULT
, 0, 0, 0},
331 * key exchange aliases (some of those using only a single bit here
332 * combine multiple key exchange algs according to the RFCs, e.g. kDHE
333 * combines DHE_DSS and DHE_RSA)
335 {0, SSL_TXT_kRSA
, 0, SSL_kRSA
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
337 {0, SSL_TXT_kEDH
, 0, SSL_kDHE
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
338 {0, SSL_TXT_kDHE
, 0, SSL_kDHE
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
339 {0, SSL_TXT_DH
, 0, SSL_kDHE
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
341 {0, SSL_TXT_kEECDH
, 0, SSL_kECDHE
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
342 {0, SSL_TXT_kECDHE
, 0, SSL_kECDHE
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
343 {0, SSL_TXT_ECDH
, 0, SSL_kECDHE
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
345 {0, SSL_TXT_kPSK
, 0, SSL_kPSK
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
346 {0, SSL_TXT_kRSAPSK
, 0, SSL_kRSAPSK
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
347 {0, SSL_TXT_kECDHEPSK
, 0, SSL_kECDHEPSK
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
348 {0, SSL_TXT_kDHEPSK
, 0, SSL_kDHEPSK
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
349 {0, SSL_TXT_kSRP
, 0, SSL_kSRP
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
350 {0, SSL_TXT_kGOST
, 0, SSL_kGOST
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
352 /* server authentication aliases */
353 {0, SSL_TXT_aRSA
, 0, 0, SSL_aRSA
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
354 {0, SSL_TXT_aDSS
, 0, 0, SSL_aDSS
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
355 {0, SSL_TXT_DSS
, 0, 0, SSL_aDSS
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
356 {0, SSL_TXT_aNULL
, 0, 0, SSL_aNULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
357 {0, SSL_TXT_aECDSA
, 0, 0, SSL_aECDSA
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
358 {0, SSL_TXT_ECDSA
, 0, 0, SSL_aECDSA
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
359 {0, SSL_TXT_aPSK
, 0, 0, SSL_aPSK
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
360 {0, SSL_TXT_aGOST01
, 0, 0, SSL_aGOST01
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
361 {0, SSL_TXT_aGOST12
, 0, 0, SSL_aGOST12
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
362 {0, SSL_TXT_aGOST
, 0, 0, SSL_aGOST01
| SSL_aGOST12
, 0, 0, 0, 0, 0, 0,
364 {0, SSL_TXT_aSRP
, 0, 0, SSL_aSRP
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
366 /* aliases combining key exchange and server authentication */
367 {0, SSL_TXT_EDH
, 0, SSL_kDHE
, ~SSL_aNULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
368 {0, SSL_TXT_DHE
, 0, SSL_kDHE
, ~SSL_aNULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
369 {0, SSL_TXT_EECDH
, 0, SSL_kECDHE
, ~SSL_aNULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
370 {0, SSL_TXT_ECDHE
, 0, SSL_kECDHE
, ~SSL_aNULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
371 {0, SSL_TXT_NULL
, 0, 0, 0, SSL_eNULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0},
372 {0, SSL_TXT_RSA
, 0, SSL_kRSA
, SSL_aRSA
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
373 {0, SSL_TXT_ADH
, 0, SSL_kDHE
, SSL_aNULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
374 {0, SSL_TXT_AECDH
, 0, SSL_kECDHE
, SSL_aNULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
375 {0, SSL_TXT_PSK
, 0, SSL_PSK
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
376 {0, SSL_TXT_SRP
, 0, SSL_kSRP
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
378 /* symmetric encryption aliases */
379 {0, SSL_TXT_3DES
, 0, 0, 0, SSL_3DES
, 0, 0, 0, 0, 0, 0, 0, 0, 0},
380 {0, SSL_TXT_RC4
, 0, 0, 0, SSL_RC4
, 0, 0, 0, 0, 0, 0, 0, 0, 0},
381 {0, SSL_TXT_RC2
, 0, 0, 0, SSL_RC2
, 0, 0, 0, 0, 0, 0, 0, 0, 0},
382 {0, SSL_TXT_IDEA
, 0, 0, 0, SSL_IDEA
, 0, 0, 0, 0, 0, 0, 0, 0, 0},
383 {0, SSL_TXT_SEED
, 0, 0, 0, SSL_SEED
, 0, 0, 0, 0, 0, 0, 0, 0, 0},
384 {0, SSL_TXT_eNULL
, 0, 0, 0, SSL_eNULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0},
385 {0, SSL_TXT_GOST
, 0, 0, 0, SSL_eGOST2814789CNT
| SSL_eGOST2814789CNT12
, 0,
386 0, 0, 0, 0, 0, 0, 0, 0},
387 {0, SSL_TXT_AES128
, 0, 0, 0, SSL_AES128
| SSL_AES128GCM
| SSL_AES128CCM
| SSL_AES128CCM8
, 0,
388 0, 0, 0, 0, 0, 0, 0, 0},
389 {0, SSL_TXT_AES256
, 0, 0, 0, SSL_AES256
| SSL_AES256GCM
| SSL_AES256CCM
| SSL_AES256CCM8
, 0,
390 0, 0, 0, 0, 0, 0, 0, 0},
391 {0, SSL_TXT_AES
, 0, 0, 0, SSL_AES
, 0, 0, 0, 0, 0, 0, 0, 0, 0},
392 {0, SSL_TXT_AES_GCM
, 0, 0, 0, SSL_AES128GCM
| SSL_AES256GCM
, 0, 0, 0, 0,
394 {0, SSL_TXT_AES_CCM
, 0, 0, 0,
395 SSL_AES128CCM
| SSL_AES256CCM
| SSL_AES128CCM8
| SSL_AES256CCM8
, 0, 0, 0,
397 {0, SSL_TXT_AES_CCM_8
, 0, 0, 0, SSL_AES128CCM8
| SSL_AES256CCM8
, 0, 0, 0, 0,
399 {0, SSL_TXT_CAMELLIA128
, 0, 0, 0, SSL_CAMELLIA128
, 0, 0, 0, 0, 0, 0, 0, 0,
401 {0, SSL_TXT_CAMELLIA256
, 0, 0, 0, SSL_CAMELLIA256
, 0, 0, 0, 0, 0, 0, 0, 0,
403 {0, SSL_TXT_CAMELLIA
, 0, 0, 0, SSL_CAMELLIA
, 0, 0, 0, 0, 0, 0, 0, 0, 0},
404 {0, SSL_TXT_CHACHA20
, 0, 0, 0, SSL_CHACHA20
, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
407 {0, SSL_TXT_MD5
, 0, 0, 0, 0, SSL_MD5
, 0, 0, 0, 0, 0, 0, 0, 0},
408 {0, SSL_TXT_SHA1
, 0, 0, 0, 0, SSL_SHA1
, 0, 0, 0, 0, 0, 0, 0, 0},
409 {0, SSL_TXT_SHA
, 0, 0, 0, 0, SSL_SHA1
, 0, 0, 0, 0, 0, 0, 0, 0},
410 {0, SSL_TXT_GOST94
, 0, 0, 0, 0, SSL_GOST94
, 0, 0, 0, 0, 0, 0, 0, 0},
411 {0, SSL_TXT_GOST89MAC
, 0, 0, 0, 0, SSL_GOST89MAC
| SSL_GOST89MAC12
, 0, 0,
413 {0, SSL_TXT_SHA256
, 0, 0, 0, 0, SSL_SHA256
, 0, 0, 0, 0, 0, 0, 0, 0},
414 {0, SSL_TXT_SHA384
, 0, 0, 0, 0, SSL_SHA384
, 0, 0, 0, 0, 0, 0, 0, 0},
415 {0, SSL_TXT_GOST12
, 0, 0, 0, 0, SSL_GOST12_256
, 0, 0, 0, 0, 0, 0, 0, 0},
417 /* protocol version aliases */
418 {0, SSL_TXT_SSLV3
, 0, 0, 0, 0, 0, SSL3_VERSION
, 0, 0, 0, 0, 0, 0, 0},
419 {0, SSL_TXT_TLSV1
, 0, 0, 0, 0, 0, TLS1_VERSION
, 0, 0, 0, 0, 0, 0, 0},
420 {0, "TLSv1.0", 0, 0, 0, 0, 0, TLS1_VERSION
, 0, 0, 0, 0, 0, 0, 0},
421 {0, SSL_TXT_TLSV1_2
, 0, 0, 0, 0, 0, TLS1_2_VERSION
, 0, 0, 0, 0, 0, 0, 0},
423 /* strength classes */
424 {0, SSL_TXT_LOW
, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_LOW
, 0, 0, 0},
425 {0, SSL_TXT_MEDIUM
, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_MEDIUM
, 0, 0, 0},
426 {0, SSL_TXT_HIGH
, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_HIGH
, 0, 0, 0},
427 /* FIPS 140-2 approved ciphersuite */
428 {0, SSL_TXT_FIPS
, 0, 0, 0, ~SSL_eNULL
, 0, 0, 0, 0, 0, SSL_FIPS
, 0, 0, 0},
430 /* "EDH-" aliases to "DHE-" labels (for backward compatibility) */
431 {0, SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA
, 0,
432 SSL_kDHE
, SSL_aDSS
, SSL_3DES
, SSL_SHA1
, 0, 0, 0, 0,
433 SSL_HIGH
| SSL_FIPS
, 0, 0, 0,},
434 {0, SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA
, 0,
435 SSL_kDHE
, SSL_aRSA
, SSL_3DES
, SSL_SHA1
, 0, 0, 0, 0,
436 SSL_HIGH
| SSL_FIPS
, 0, 0, 0,},
441 * Search for public key algorithm with given name and return its pkey_id if
442 * it is available. Otherwise return 0
444 #ifdef OPENSSL_NO_ENGINE
446 static int get_optional_pkey_id(const char *pkey_name
)
448 const EVP_PKEY_ASN1_METHOD
*ameth
;
450 ameth
= EVP_PKEY_asn1_find_str(NULL
, pkey_name
, -1);
451 if (ameth
&& EVP_PKEY_asn1_get0_info(&pkey_id
, NULL
, NULL
, NULL
, NULL
,
460 static int get_optional_pkey_id(const char *pkey_name
)
462 const EVP_PKEY_ASN1_METHOD
*ameth
;
463 ENGINE
*tmpeng
= NULL
;
465 ameth
= EVP_PKEY_asn1_find_str(&tmpeng
, pkey_name
, -1);
467 if (EVP_PKEY_asn1_get0_info(&pkey_id
, NULL
, NULL
, NULL
, NULL
,
471 ENGINE_finish(tmpeng
);
477 /* masks of disabled algorithms */
478 static uint32_t disabled_enc_mask
;
479 static uint32_t disabled_mac_mask
;
480 static uint32_t disabled_mkey_mask
;
481 static uint32_t disabled_auth_mask
;
483 void ssl_load_ciphers(void)
486 const ssl_cipher_table
*t
;
488 disabled_enc_mask
= 0;
489 ssl_sort_cipher_list();
490 for (i
= 0, t
= ssl_cipher_table_cipher
; i
< SSL_ENC_NUM_IDX
; i
++, t
++) {
491 if (t
->nid
== NID_undef
) {
492 ssl_cipher_methods
[i
] = NULL
;
494 const EVP_CIPHER
*cipher
= EVP_get_cipherbynid(t
->nid
);
495 ssl_cipher_methods
[i
] = cipher
;
497 disabled_enc_mask
|= t
->mask
;
500 #ifdef SSL_FORBID_ENULL
501 disabled_enc_mask
|= SSL_eNULL
;
503 disabled_mac_mask
= 0;
504 for (i
= 0, t
= ssl_cipher_table_mac
; i
< SSL_MD_NUM_IDX
; i
++, t
++) {
505 const EVP_MD
*md
= EVP_get_digestbynid(t
->nid
);
506 ssl_digest_methods
[i
] = md
;
508 disabled_mac_mask
|= t
->mask
;
510 ssl_mac_secret_size
[i
] = EVP_MD_size(md
);
511 OPENSSL_assert(ssl_mac_secret_size
[i
] >= 0);
514 /* Make sure we can access MD5 and SHA1 */
515 OPENSSL_assert(ssl_digest_methods
[SSL_MD_MD5_IDX
] != NULL
);
516 OPENSSL_assert(ssl_digest_methods
[SSL_MD_SHA1_IDX
] != NULL
);
518 disabled_mkey_mask
= 0;
519 disabled_auth_mask
= 0;
521 #ifdef OPENSSL_NO_RSA
522 disabled_mkey_mask
|= SSL_kRSA
| SSL_kRSAPSK
;
523 disabled_auth_mask
|= SSL_aRSA
;
525 #ifdef OPENSSL_NO_DSA
526 disabled_auth_mask
|= SSL_aDSS
;
529 disabled_mkey_mask
|= SSL_kDHE
| SSL_kDHEPSK
;
532 disabled_mkey_mask
|= SSL_kECDHEPSK
;
533 disabled_auth_mask
|= SSL_aECDSA
;
535 #ifdef OPENSSL_NO_PSK
536 disabled_mkey_mask
|= SSL_PSK
;
537 disabled_auth_mask
|= SSL_aPSK
;
539 #ifdef OPENSSL_NO_SRP
540 disabled_mkey_mask
|= SSL_kSRP
;
544 * Check for presence of GOST 34.10 algorithms, and if they are not
545 * present, disable appropriate auth and key exchange
547 ssl_mac_pkey_id
[SSL_MD_GOST89MAC_IDX
] = get_optional_pkey_id("gost-mac");
548 if (ssl_mac_pkey_id
[SSL_MD_GOST89MAC_IDX
]) {
549 ssl_mac_secret_size
[SSL_MD_GOST89MAC_IDX
] = 32;
551 disabled_mac_mask
|= SSL_GOST89MAC
;
554 ssl_mac_pkey_id
[SSL_MD_GOST89MAC12_IDX
] = get_optional_pkey_id("gost-mac-12");
555 if (ssl_mac_pkey_id
[SSL_MD_GOST89MAC12_IDX
]) {
556 ssl_mac_secret_size
[SSL_MD_GOST89MAC12_IDX
] = 32;
558 disabled_mac_mask
|= SSL_GOST89MAC12
;
561 if (!get_optional_pkey_id("gost2001"))
562 disabled_auth_mask
|= SSL_aGOST01
| SSL_aGOST12
;
563 if (!get_optional_pkey_id("gost2012_256"))
564 disabled_auth_mask
|= SSL_aGOST12
;
565 if (!get_optional_pkey_id("gost2012_512"))
566 disabled_auth_mask
|= SSL_aGOST12
;
568 * Disable GOST key exchange if no GOST signature algs are available *
570 if ((disabled_auth_mask
& (SSL_aGOST01
| SSL_aGOST12
)) == (SSL_aGOST01
| SSL_aGOST12
))
571 disabled_mkey_mask
|= SSL_kGOST
;
574 #ifndef OPENSSL_NO_COMP
576 static int sk_comp_cmp(const SSL_COMP
*const *a
, const SSL_COMP
*const *b
)
578 return ((*a
)->id
- (*b
)->id
);
581 static void do_load_builtin_compressions(void)
583 SSL_COMP
*comp
= NULL
;
584 COMP_METHOD
*method
= COMP_zlib();
586 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE
);
587 ssl_comp_methods
= sk_SSL_COMP_new(sk_comp_cmp
);
589 if (COMP_get_type(method
) != NID_undef
&& ssl_comp_methods
!= NULL
) {
590 comp
= OPENSSL_malloc(sizeof(*comp
));
592 comp
->method
= method
;
593 comp
->id
= SSL_COMP_ZLIB_IDX
;
594 comp
->name
= COMP_get_name(method
);
595 sk_SSL_COMP_push(ssl_comp_methods
, comp
);
596 sk_SSL_COMP_sort(ssl_comp_methods
);
599 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE
);
602 static void load_builtin_compressions(void)
604 CRYPTO_THREAD_run_once(&ssl_load_builtin_comp_once
,
605 do_load_builtin_compressions
);
609 int ssl_cipher_get_evp(const SSL_SESSION
*s
, const EVP_CIPHER
**enc
,
610 const EVP_MD
**md
, int *mac_pkey_type
,
611 int *mac_secret_size
, SSL_COMP
**comp
, int use_etm
)
621 #ifndef OPENSSL_NO_COMP
622 load_builtin_compressions();
625 ctmp
.id
= s
->compress_meth
;
626 if (ssl_comp_methods
!= NULL
) {
627 i
= sk_SSL_COMP_find(ssl_comp_methods
, &ctmp
);
629 *comp
= sk_SSL_COMP_value(ssl_comp_methods
, i
);
633 /* If were only interested in comp then return success */
634 if ((enc
== NULL
) && (md
== NULL
))
638 if ((enc
== NULL
) || (md
== NULL
))
641 i
= ssl_cipher_info_lookup(ssl_cipher_table_cipher
, c
->algorithm_enc
);
646 if (i
== SSL_ENC_NULL_IDX
)
647 *enc
= EVP_enc_null();
649 *enc
= ssl_cipher_methods
[i
];
652 i
= ssl_cipher_info_lookup(ssl_cipher_table_mac
, c
->algorithm_mac
);
655 if (mac_pkey_type
!= NULL
)
656 *mac_pkey_type
= NID_undef
;
657 if (mac_secret_size
!= NULL
)
658 *mac_secret_size
= 0;
659 if (c
->algorithm_mac
== SSL_AEAD
)
660 mac_pkey_type
= NULL
;
662 *md
= ssl_digest_methods
[i
];
663 if (mac_pkey_type
!= NULL
)
664 *mac_pkey_type
= ssl_mac_pkey_id
[i
];
665 if (mac_secret_size
!= NULL
)
666 *mac_secret_size
= ssl_mac_secret_size
[i
];
669 if ((*enc
!= NULL
) &&
670 (*md
!= NULL
|| (EVP_CIPHER_flags(*enc
) & EVP_CIPH_FLAG_AEAD_CIPHER
))
671 && (!mac_pkey_type
|| *mac_pkey_type
!= NID_undef
)) {
672 const EVP_CIPHER
*evp
;
677 if (s
->ssl_version
>> 8 != TLS1_VERSION_MAJOR
||
678 s
->ssl_version
< TLS1_VERSION
)
684 if (c
->algorithm_enc
== SSL_RC4
&&
685 c
->algorithm_mac
== SSL_MD5
&&
686 (evp
= EVP_get_cipherbyname("RC4-HMAC-MD5")))
687 *enc
= evp
, *md
= NULL
;
688 else if (c
->algorithm_enc
== SSL_AES128
&&
689 c
->algorithm_mac
== SSL_SHA1
&&
690 (evp
= EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1")))
691 *enc
= evp
, *md
= NULL
;
692 else if (c
->algorithm_enc
== SSL_AES256
&&
693 c
->algorithm_mac
== SSL_SHA1
&&
694 (evp
= EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1")))
695 *enc
= evp
, *md
= NULL
;
696 else if (c
->algorithm_enc
== SSL_AES128
&&
697 c
->algorithm_mac
== SSL_SHA256
&&
698 (evp
= EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA256")))
699 *enc
= evp
, *md
= NULL
;
700 else if (c
->algorithm_enc
== SSL_AES256
&&
701 c
->algorithm_mac
== SSL_SHA256
&&
702 (evp
= EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA256")))
703 *enc
= evp
, *md
= NULL
;
709 const EVP_MD
*ssl_md(int idx
)
711 idx
&= SSL_HANDSHAKE_MAC_MASK
;
712 if (idx
< 0 || idx
>= SSL_MD_NUM_IDX
)
714 return ssl_digest_methods
[idx
];
717 const EVP_MD
*ssl_handshake_md(SSL
*s
)
719 return ssl_md(ssl_get_algorithm2(s
));
722 const EVP_MD
*ssl_prf_md(SSL
*s
)
724 return ssl_md(ssl_get_algorithm2(s
) >> TLS1_PRF_DGST_SHIFT
);
727 #define ITEM_SEP(a) \
728 (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
730 static void ll_append_tail(CIPHER_ORDER
**head
, CIPHER_ORDER
*curr
,
737 if (curr
->prev
!= NULL
)
738 curr
->prev
->next
= curr
->next
;
739 if (curr
->next
!= NULL
)
740 curr
->next
->prev
= curr
->prev
;
741 (*tail
)->next
= curr
;
747 static void ll_append_head(CIPHER_ORDER
**head
, CIPHER_ORDER
*curr
,
754 if (curr
->next
!= NULL
)
755 curr
->next
->prev
= curr
->prev
;
756 if (curr
->prev
!= NULL
)
757 curr
->prev
->next
= curr
->next
;
758 (*head
)->prev
= curr
;
764 static void ssl_cipher_collect_ciphers(const SSL_METHOD
*ssl_method
,
766 uint32_t disabled_mkey
,
767 uint32_t disabled_auth
,
768 uint32_t disabled_enc
,
769 uint32_t disabled_mac
,
770 CIPHER_ORDER
*co_list
,
771 CIPHER_ORDER
**head_p
,
772 CIPHER_ORDER
**tail_p
)
778 * We have num_of_ciphers descriptions compiled in, depending on the
779 * method selected (SSLv3, TLSv1 etc).
780 * These will later be sorted in a linked list with at most num
784 /* Get the initial list of ciphers */
785 co_list_num
= 0; /* actual count of ciphers */
786 for (i
= 0; i
< num_of_ciphers
; i
++) {
787 c
= ssl_method
->get_cipher(i
);
788 /* drop those that use any of that is not available */
789 if (c
== NULL
|| !c
->valid
)
791 if (FIPS_mode() && (c
->algo_strength
& SSL_FIPS
))
793 if ((c
->algorithm_mkey
& disabled_mkey
) ||
794 (c
->algorithm_auth
& disabled_auth
) ||
795 (c
->algorithm_enc
& disabled_enc
) ||
796 (c
->algorithm_mac
& disabled_mac
))
798 if (((ssl_method
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
) == 0) &&
801 if (((ssl_method
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
) != 0) &&
805 co_list
[co_list_num
].cipher
= c
;
806 co_list
[co_list_num
].next
= NULL
;
807 co_list
[co_list_num
].prev
= NULL
;
808 co_list
[co_list_num
].active
= 0;
811 * if (!sk_push(ca_list,(char *)c)) goto err;
816 * Prepare linked list from list entries
818 if (co_list_num
> 0) {
819 co_list
[0].prev
= NULL
;
821 if (co_list_num
> 1) {
822 co_list
[0].next
= &co_list
[1];
824 for (i
= 1; i
< co_list_num
- 1; i
++) {
825 co_list
[i
].prev
= &co_list
[i
- 1];
826 co_list
[i
].next
= &co_list
[i
+ 1];
829 co_list
[co_list_num
- 1].prev
= &co_list
[co_list_num
- 2];
832 co_list
[co_list_num
- 1].next
= NULL
;
834 *head_p
= &co_list
[0];
835 *tail_p
= &co_list
[co_list_num
- 1];
839 static void ssl_cipher_collect_aliases(const SSL_CIPHER
**ca_list
,
840 int num_of_group_aliases
,
841 uint32_t disabled_mkey
,
842 uint32_t disabled_auth
,
843 uint32_t disabled_enc
,
844 uint32_t disabled_mac
,
847 CIPHER_ORDER
*ciph_curr
;
848 const SSL_CIPHER
**ca_curr
;
850 uint32_t mask_mkey
= ~disabled_mkey
;
851 uint32_t mask_auth
= ~disabled_auth
;
852 uint32_t mask_enc
= ~disabled_enc
;
853 uint32_t mask_mac
= ~disabled_mac
;
856 * First, add the real ciphers as already collected
860 while (ciph_curr
!= NULL
) {
861 *ca_curr
= ciph_curr
->cipher
;
863 ciph_curr
= ciph_curr
->next
;
867 * Now we add the available ones from the cipher_aliases[] table.
868 * They represent either one or more algorithms, some of which
869 * in any affected category must be supported (set in enabled_mask),
870 * or represent a cipher strength value (will be added in any case because algorithms=0).
872 for (i
= 0; i
< num_of_group_aliases
; i
++) {
873 uint32_t algorithm_mkey
= cipher_aliases
[i
].algorithm_mkey
;
874 uint32_t algorithm_auth
= cipher_aliases
[i
].algorithm_auth
;
875 uint32_t algorithm_enc
= cipher_aliases
[i
].algorithm_enc
;
876 uint32_t algorithm_mac
= cipher_aliases
[i
].algorithm_mac
;
879 if ((algorithm_mkey
& mask_mkey
) == 0)
883 if ((algorithm_auth
& mask_auth
) == 0)
887 if ((algorithm_enc
& mask_enc
) == 0)
891 if ((algorithm_mac
& mask_mac
) == 0)
894 *ca_curr
= (SSL_CIPHER
*)(cipher_aliases
+ i
);
898 *ca_curr
= NULL
; /* end of list */
901 static void ssl_cipher_apply_rule(uint32_t cipher_id
, uint32_t alg_mkey
,
902 uint32_t alg_auth
, uint32_t alg_enc
,
903 uint32_t alg_mac
, int min_tls
,
904 uint32_t algo_strength
, int rule
,
905 int32_t strength_bits
, CIPHER_ORDER
**head_p
,
906 CIPHER_ORDER
**tail_p
)
908 CIPHER_ORDER
*head
, *tail
, *curr
, *next
, *last
;
909 const SSL_CIPHER
*cp
;
914 "Applying rule %d with %08x/%08x/%08x/%08x/%08x %08x (%d)\n",
915 rule
, alg_mkey
, alg_auth
, alg_enc
, alg_mac
, min_tls
,
916 algo_strength
, strength_bits
);
919 if (rule
== CIPHER_DEL
|| rule
== CIPHER_BUMP
)
920 reverse
= 1; /* needed to maintain sorting between
921 * currently deleted ciphers */
944 next
= reverse
? curr
->prev
: curr
->next
;
949 * Selection criteria is either the value of strength_bits
950 * or the algorithms used.
952 if (strength_bits
>= 0) {
953 if (strength_bits
!= cp
->strength_bits
)
958 "\nName: %s:\nAlgo = %08x/%08x/%08x/%08x/%08x Algo_strength = %08x\n",
959 cp
->name
, cp
->algorithm_mkey
, cp
->algorithm_auth
,
960 cp
->algorithm_enc
, cp
->algorithm_mac
, cp
->algorithm_ssl
,
963 if (alg_mkey
&& !(alg_mkey
& cp
->algorithm_mkey
))
965 if (alg_auth
&& !(alg_auth
& cp
->algorithm_auth
))
967 if (alg_enc
&& !(alg_enc
& cp
->algorithm_enc
))
969 if (alg_mac
&& !(alg_mac
& cp
->algorithm_mac
))
971 if (min_tls
&& (min_tls
!= cp
->min_tls
))
973 if ((algo_strength
& SSL_STRONG_MASK
)
974 && !(algo_strength
& SSL_STRONG_MASK
& cp
->algo_strength
))
976 if ((algo_strength
& SSL_DEFAULT_MASK
)
977 && !(algo_strength
& SSL_DEFAULT_MASK
& cp
->algo_strength
))
982 fprintf(stderr
, "Action = %d\n", rule
);
985 /* add the cipher if it has not been added yet. */
986 if (rule
== CIPHER_ADD
) {
989 ll_append_tail(&head
, curr
, &tail
);
993 /* Move the added cipher to this location */
994 else if (rule
== CIPHER_ORD
) {
997 ll_append_tail(&head
, curr
, &tail
);
999 } else if (rule
== CIPHER_DEL
) {
1003 * most recently deleted ciphersuites get best positions for
1004 * any future CIPHER_ADD (note that the CIPHER_DEL loop works
1005 * in reverse to maintain the order)
1007 ll_append_head(&head
, curr
, &tail
);
1010 } else if (rule
== CIPHER_BUMP
) {
1012 ll_append_head(&head
, curr
, &tail
);
1013 } else if (rule
== CIPHER_KILL
) {
1018 curr
->prev
->next
= curr
->next
;
1022 if (curr
->next
!= NULL
)
1023 curr
->next
->prev
= curr
->prev
;
1024 if (curr
->prev
!= NULL
)
1025 curr
->prev
->next
= curr
->next
;
1035 static int ssl_cipher_strength_sort(CIPHER_ORDER
**head_p
,
1036 CIPHER_ORDER
**tail_p
)
1038 int32_t max_strength_bits
;
1039 int i
, *number_uses
;
1043 * This routine sorts the ciphers with descending strength. The sorting
1044 * must keep the pre-sorted sequence, so we apply the normal sorting
1045 * routine as '+' movement to the end of the list.
1047 max_strength_bits
= 0;
1049 while (curr
!= NULL
) {
1050 if (curr
->active
&& (curr
->cipher
->strength_bits
> max_strength_bits
))
1051 max_strength_bits
= curr
->cipher
->strength_bits
;
1055 number_uses
= OPENSSL_zalloc(sizeof(int) * (max_strength_bits
+ 1));
1056 if (number_uses
== NULL
) {
1057 SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT
, ERR_R_MALLOC_FAILURE
);
1062 * Now find the strength_bits values actually used
1065 while (curr
!= NULL
) {
1067 number_uses
[curr
->cipher
->strength_bits
]++;
1071 * Go through the list of used strength_bits values in descending
1074 for (i
= max_strength_bits
; i
>= 0; i
--)
1075 if (number_uses
[i
] > 0)
1076 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD
, i
, head_p
,
1079 OPENSSL_free(number_uses
);
1083 static int ssl_cipher_process_rulestr(const char *rule_str
,
1084 CIPHER_ORDER
**head_p
,
1085 CIPHER_ORDER
**tail_p
,
1086 const SSL_CIPHER
**ca_list
, CERT
*c
)
1088 uint32_t alg_mkey
, alg_auth
, alg_enc
, alg_mac
, algo_strength
;
1090 const char *l
, *buf
;
1091 int j
, multi
, found
, rule
, retval
, ok
, buflen
;
1092 uint32_t cipher_id
= 0;
1105 } else if (ch
== '+') {
1108 } else if (ch
== '!') {
1111 } else if (ch
== '@') {
1112 rule
= CIPHER_SPECIAL
;
1134 #ifndef CHARSET_EBCDIC
1135 while (((ch
>= 'A') && (ch
<= 'Z')) ||
1136 ((ch
>= '0') && (ch
<= '9')) ||
1137 ((ch
>= 'a') && (ch
<= 'z')) ||
1138 (ch
== '-') || (ch
== '.') || (ch
== '='))
1140 while (isalnum(ch
) || (ch
== '-') || (ch
== '.') || (ch
== '='))
1149 * We hit something we cannot deal with,
1150 * it is no command or separator nor
1151 * alphanumeric, so we call this an error.
1153 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR
,
1154 SSL_R_INVALID_COMMAND
);
1160 if (rule
== CIPHER_SPECIAL
) {
1161 found
= 0; /* unused -- avoid compiler warning */
1162 break; /* special treatment */
1165 /* check for multi-part specification */
1173 * Now search for the cipher alias in the ca_list. Be careful
1174 * with the strncmp, because the "buflen" limitation
1175 * will make the rule "ADH:SOME" and the cipher
1176 * "ADH-MY-CIPHER" look like a match for buflen=3.
1177 * So additionally check whether the cipher name found
1178 * has the correct length. We can save a strlen() call:
1179 * just checking for the '\0' at the right place is
1180 * sufficient, we have to strncmp() anyway. (We cannot
1181 * use strcmp(), because buf is not '\0' terminated.)
1185 while (ca_list
[j
]) {
1186 if (strncmp(buf
, ca_list
[j
]->name
, buflen
) == 0
1187 && (ca_list
[j
]->name
[buflen
] == '\0')) {
1195 break; /* ignore this entry */
1197 if (ca_list
[j
]->algorithm_mkey
) {
1199 alg_mkey
&= ca_list
[j
]->algorithm_mkey
;
1205 alg_mkey
= ca_list
[j
]->algorithm_mkey
;
1208 if (ca_list
[j
]->algorithm_auth
) {
1210 alg_auth
&= ca_list
[j
]->algorithm_auth
;
1216 alg_auth
= ca_list
[j
]->algorithm_auth
;
1219 if (ca_list
[j
]->algorithm_enc
) {
1221 alg_enc
&= ca_list
[j
]->algorithm_enc
;
1227 alg_enc
= ca_list
[j
]->algorithm_enc
;
1230 if (ca_list
[j
]->algorithm_mac
) {
1232 alg_mac
&= ca_list
[j
]->algorithm_mac
;
1238 alg_mac
= ca_list
[j
]->algorithm_mac
;
1241 if (ca_list
[j
]->algo_strength
& SSL_STRONG_MASK
) {
1242 if (algo_strength
& SSL_STRONG_MASK
) {
1244 (ca_list
[j
]->algo_strength
& SSL_STRONG_MASK
) |
1246 if (!(algo_strength
& SSL_STRONG_MASK
)) {
1251 algo_strength
= ca_list
[j
]->algo_strength
& SSL_STRONG_MASK
;
1254 if (ca_list
[j
]->algo_strength
& SSL_DEFAULT_MASK
) {
1255 if (algo_strength
& SSL_DEFAULT_MASK
) {
1257 (ca_list
[j
]->algo_strength
& SSL_DEFAULT_MASK
) |
1259 if (!(algo_strength
& SSL_DEFAULT_MASK
)) {
1265 ca_list
[j
]->algo_strength
& SSL_DEFAULT_MASK
;
1268 if (ca_list
[j
]->valid
) {
1270 * explicit ciphersuite found; its protocol version does not
1271 * become part of the search pattern!
1274 cipher_id
= ca_list
[j
]->id
;
1277 * not an explicit ciphersuite; only in this case, the
1278 * protocol version is considered part of the search pattern
1281 if (ca_list
[j
]->min_tls
) {
1282 if (min_tls
!= 0 && min_tls
!= ca_list
[j
]->min_tls
) {
1286 min_tls
= ca_list
[j
]->min_tls
;
1296 * Ok, we have the rule, now apply it
1298 if (rule
== CIPHER_SPECIAL
) { /* special command */
1300 if ((buflen
== 8) && strncmp(buf
, "STRENGTH", 8) == 0)
1301 ok
= ssl_cipher_strength_sort(head_p
, tail_p
);
1302 else if (buflen
== 10 && strncmp(buf
, "SECLEVEL=", 9) == 0) {
1303 int level
= buf
[9] - '0';
1304 if (level
< 0 || level
> 5) {
1305 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR
,
1306 SSL_R_INVALID_COMMAND
);
1308 c
->sec_level
= level
;
1312 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR
,
1313 SSL_R_INVALID_COMMAND
);
1317 * We do not support any "multi" options
1318 * together with "@", so throw away the
1319 * rest of the command, if any left, until
1320 * end or ':' is found.
1322 while ((*l
!= '\0') && !ITEM_SEP(*l
))
1325 ssl_cipher_apply_rule(cipher_id
,
1326 alg_mkey
, alg_auth
, alg_enc
, alg_mac
,
1327 min_tls
, algo_strength
, rule
, -1, head_p
,
1330 while ((*l
!= '\0') && !ITEM_SEP(*l
))
1340 #ifndef OPENSSL_NO_EC
1341 static int check_suiteb_cipher_list(const SSL_METHOD
*meth
, CERT
*c
,
1342 const char **prule_str
)
1344 unsigned int suiteb_flags
= 0, suiteb_comb2
= 0;
1345 if (strncmp(*prule_str
, "SUITEB128ONLY", 13) == 0) {
1346 suiteb_flags
= SSL_CERT_FLAG_SUITEB_128_LOS_ONLY
;
1347 } else if (strncmp(*prule_str
, "SUITEB128C2", 11) == 0) {
1349 suiteb_flags
= SSL_CERT_FLAG_SUITEB_128_LOS
;
1350 } else if (strncmp(*prule_str
, "SUITEB128", 9) == 0) {
1351 suiteb_flags
= SSL_CERT_FLAG_SUITEB_128_LOS
;
1352 } else if (strncmp(*prule_str
, "SUITEB192", 9) == 0) {
1353 suiteb_flags
= SSL_CERT_FLAG_SUITEB_192_LOS
;
1357 c
->cert_flags
&= ~SSL_CERT_FLAG_SUITEB_128_LOS
;
1358 c
->cert_flags
|= suiteb_flags
;
1360 suiteb_flags
= c
->cert_flags
& SSL_CERT_FLAG_SUITEB_128_LOS
;
1364 /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */
1366 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_TLS1_2_CIPHERS
)) {
1367 SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST
,
1368 SSL_R_AT_LEAST_TLS_1_2_NEEDED_IN_SUITEB_MODE
);
1371 # ifndef OPENSSL_NO_EC
1372 switch (suiteb_flags
) {
1373 case SSL_CERT_FLAG_SUITEB_128_LOS
:
1375 *prule_str
= "ECDHE-ECDSA-AES256-GCM-SHA384";
1378 "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384";
1380 case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY
:
1381 *prule_str
= "ECDHE-ECDSA-AES128-GCM-SHA256";
1383 case SSL_CERT_FLAG_SUITEB_192_LOS
:
1384 *prule_str
= "ECDHE-ECDSA-AES256-GCM-SHA384";
1389 SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST
,
1390 SSL_R_ECDH_REQUIRED_FOR_SUITEB_MODE
);
1396 STACK_OF(SSL_CIPHER
) *ssl_create_cipher_list(const SSL_METHOD
*ssl_method
, STACK_OF(SSL_CIPHER
)
1397 **cipher_list
, STACK_OF(SSL_CIPHER
)
1398 **cipher_list_by_id
,
1399 const char *rule_str
, CERT
*c
)
1401 int ok
, num_of_ciphers
, num_of_alias_max
, num_of_group_aliases
;
1402 uint32_t disabled_mkey
, disabled_auth
, disabled_enc
, disabled_mac
;
1403 STACK_OF(SSL_CIPHER
) *cipherstack
, *tmp_cipher_list
;
1405 CIPHER_ORDER
*co_list
= NULL
, *head
= NULL
, *tail
= NULL
, *curr
;
1406 const SSL_CIPHER
**ca_list
= NULL
;
1409 * Return with error if nothing to do.
1411 if (rule_str
== NULL
|| cipher_list
== NULL
|| cipher_list_by_id
== NULL
)
1413 #ifndef OPENSSL_NO_EC
1414 if (!check_suiteb_cipher_list(ssl_method
, c
, &rule_str
))
1419 * To reduce the work to do we only want to process the compiled
1420 * in algorithms, so we first get the mask of disabled ciphers.
1423 disabled_mkey
= disabled_mkey_mask
;
1424 disabled_auth
= disabled_auth_mask
;
1425 disabled_enc
= disabled_enc_mask
;
1426 disabled_mac
= disabled_mac_mask
;
1429 * Now we have to collect the available ciphers from the compiled
1430 * in ciphers. We cannot get more than the number compiled in, so
1431 * it is used for allocation.
1433 num_of_ciphers
= ssl_method
->num_ciphers();
1435 co_list
= OPENSSL_malloc(sizeof(*co_list
) * num_of_ciphers
);
1436 if (co_list
== NULL
) {
1437 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
1438 return (NULL
); /* Failure */
1441 ssl_cipher_collect_ciphers(ssl_method
, num_of_ciphers
,
1442 disabled_mkey
, disabled_auth
, disabled_enc
,
1443 disabled_mac
, co_list
, &head
,
1446 /* Now arrange all ciphers by preference. */
1449 * Everything else being equal, prefer ephemeral ECDH over other key
1450 * exchange mechanisms.
1451 * For consistency, prefer ECDSA over RSA (though this only matters if the
1452 * server has both certificates, and is using the DEFAULT, or a client
1455 ssl_cipher_apply_rule(0, SSL_kECDHE
, SSL_aECDSA
, 0, 0, 0, 0, CIPHER_ADD
,
1457 ssl_cipher_apply_rule(0, SSL_kECDHE
, 0, 0, 0, 0, 0, CIPHER_ADD
, -1, &head
,
1459 ssl_cipher_apply_rule(0, SSL_kECDHE
, 0, 0, 0, 0, 0, CIPHER_DEL
, -1, &head
,
1463 /* Within each strength group, we prefer GCM over CHACHA... */
1464 ssl_cipher_apply_rule(0, 0, 0, SSL_AESGCM
, 0, 0, 0, CIPHER_ADD
, -1,
1466 ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20
, 0, 0, 0, CIPHER_ADD
, -1,
1470 * ...and generally, our preferred cipher is AES.
1471 * Note that AEADs will be bumped to take preference after sorting by
1474 ssl_cipher_apply_rule(0, 0, 0, SSL_AES
^ SSL_AESGCM
, 0, 0, 0, CIPHER_ADD
,
1477 /* Temporarily enable everything else for sorting */
1478 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD
, -1, &head
, &tail
);
1480 /* Low priority for MD5 */
1481 ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5
, 0, 0, CIPHER_ORD
, -1, &head
,
1485 * Move anonymous ciphers to the end. Usually, these will remain
1486 * disabled. (For applications that allow them, they aren't too bad, but
1487 * we prefer authenticated ciphers.)
1489 ssl_cipher_apply_rule(0, 0, SSL_aNULL
, 0, 0, 0, 0, CIPHER_ORD
, -1, &head
,
1493 * ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1,
1496 ssl_cipher_apply_rule(0, SSL_kRSA
, 0, 0, 0, 0, 0, CIPHER_ORD
, -1, &head
,
1498 ssl_cipher_apply_rule(0, SSL_kPSK
, 0, 0, 0, 0, 0, CIPHER_ORD
, -1, &head
,
1501 /* RC4 is sort-of broken -- move the the end */
1502 ssl_cipher_apply_rule(0, 0, 0, SSL_RC4
, 0, 0, 0, CIPHER_ORD
, -1, &head
,
1506 * Now sort by symmetric encryption strength. The above ordering remains
1507 * in force within each class
1509 if (!ssl_cipher_strength_sort(&head
, &tail
)) {
1510 OPENSSL_free(co_list
);
1515 * Partially overrule strength sort to prefer TLS 1.2 ciphers/PRFs.
1516 * TODO(openssl-team): is there an easier way to accomplish all this?
1518 ssl_cipher_apply_rule(0, 0, 0, 0, 0, TLS1_2_VERSION
, 0, CIPHER_BUMP
, -1,
1522 * Irrespective of strength, enforce the following order:
1523 * (EC)DHE + AEAD > (EC)DHE > rest of AEAD > rest.
1524 * Within each group, ciphers remain sorted by strength and previous
1529 * 4) TLS 1.2 > legacy
1531 * Because we now bump ciphers to the top of the list, we proceed in
1532 * reverse order of preference.
1534 ssl_cipher_apply_rule(0, 0, 0, 0, SSL_AEAD
, 0, 0, CIPHER_BUMP
, -1,
1536 ssl_cipher_apply_rule(0, SSL_kDHE
| SSL_kECDHE
, 0, 0, 0, 0, 0,
1537 CIPHER_BUMP
, -1, &head
, &tail
);
1538 ssl_cipher_apply_rule(0, SSL_kDHE
| SSL_kECDHE
, 0, 0, SSL_AEAD
, 0, 0,
1539 CIPHER_BUMP
, -1, &head
, &tail
);
1541 /* Now disable everything (maintaining the ordering!) */
1542 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL
, -1, &head
, &tail
);
1545 * We also need cipher aliases for selecting based on the rule_str.
1546 * There might be two types of entries in the rule_str: 1) names
1547 * of ciphers themselves 2) aliases for groups of ciphers.
1548 * For 1) we need the available ciphers and for 2) the cipher
1549 * groups of cipher_aliases added together in one list (otherwise
1550 * we would be happy with just the cipher_aliases table).
1552 num_of_group_aliases
= OSSL_NELEM(cipher_aliases
);
1553 num_of_alias_max
= num_of_ciphers
+ num_of_group_aliases
+ 1;
1554 ca_list
= OPENSSL_malloc(sizeof(*ca_list
) * num_of_alias_max
);
1555 if (ca_list
== NULL
) {
1556 OPENSSL_free(co_list
);
1557 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
1558 return (NULL
); /* Failure */
1560 ssl_cipher_collect_aliases(ca_list
, num_of_group_aliases
,
1561 disabled_mkey
, disabled_auth
, disabled_enc
,
1562 disabled_mac
, head
);
1565 * If the rule_string begins with DEFAULT, apply the default rule
1566 * before using the (possibly available) additional rules.
1570 if (strncmp(rule_str
, "DEFAULT", 7) == 0) {
1571 ok
= ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST
,
1572 &head
, &tail
, ca_list
, c
);
1578 if (ok
&& (strlen(rule_p
) > 0))
1579 ok
= ssl_cipher_process_rulestr(rule_p
, &head
, &tail
, ca_list
, c
);
1581 OPENSSL_free(ca_list
); /* Not needed anymore */
1583 if (!ok
) { /* Rule processing failure */
1584 OPENSSL_free(co_list
);
1589 * Allocate new "cipherstack" for the result, return with error
1590 * if we cannot get one.
1592 if ((cipherstack
= sk_SSL_CIPHER_new_null()) == NULL
) {
1593 OPENSSL_free(co_list
);
1598 * The cipher selection for the list is done. The ciphers are added
1599 * to the resulting precedence to the STACK_OF(SSL_CIPHER).
1601 for (curr
= head
; curr
!= NULL
; curr
= curr
->next
) {
1603 && (!FIPS_mode() || curr
->cipher
->algo_strength
& SSL_FIPS
)) {
1604 if (!sk_SSL_CIPHER_push(cipherstack
, curr
->cipher
)) {
1605 OPENSSL_free(co_list
);
1606 sk_SSL_CIPHER_free(cipherstack
);
1610 fprintf(stderr
, "<%s>\n", curr
->cipher
->name
);
1614 OPENSSL_free(co_list
); /* Not needed any longer */
1616 tmp_cipher_list
= sk_SSL_CIPHER_dup(cipherstack
);
1617 if (tmp_cipher_list
== NULL
) {
1618 sk_SSL_CIPHER_free(cipherstack
);
1621 sk_SSL_CIPHER_free(*cipher_list
);
1622 *cipher_list
= cipherstack
;
1623 if (*cipher_list_by_id
!= NULL
)
1624 sk_SSL_CIPHER_free(*cipher_list_by_id
);
1625 *cipher_list_by_id
= tmp_cipher_list
;
1626 (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id
,
1627 ssl_cipher_ptr_id_cmp
);
1629 sk_SSL_CIPHER_sort(*cipher_list_by_id
);
1630 return (cipherstack
);
1633 char *SSL_CIPHER_description(const SSL_CIPHER
*cipher
, char *buf
, int len
)
1636 const char *kx
, *au
, *enc
, *mac
;
1637 uint32_t alg_mkey
, alg_auth
, alg_enc
, alg_mac
;
1638 static const char *format
=
1639 "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s\n";
1643 buf
= OPENSSL_malloc(len
);
1646 } else if (len
< 128)
1649 alg_mkey
= cipher
->algorithm_mkey
;
1650 alg_auth
= cipher
->algorithm_auth
;
1651 alg_enc
= cipher
->algorithm_enc
;
1652 alg_mac
= cipher
->algorithm_mac
;
1654 ver
= ssl_protocol_to_string(cipher
->min_tls
);
1710 /* New GOST ciphersuites have both SSL_aGOST12 and SSL_aGOST01 bits */
1711 case (SSL_aGOST12
| SSL_aGOST01
):
1745 enc
= "AESGCM(128)";
1748 enc
= "AESGCM(256)";
1751 enc
= "AESCCM(128)";
1754 enc
= "AESCCM(256)";
1756 case SSL_AES128CCM8
:
1757 enc
= "AESCCM8(128)";
1759 case SSL_AES256CCM8
:
1760 enc
= "AESCCM8(256)";
1762 case SSL_CAMELLIA128
:
1763 enc
= "Camellia(128)";
1765 case SSL_CAMELLIA256
:
1766 enc
= "Camellia(256)";
1771 case SSL_eGOST2814789CNT
:
1772 case SSL_eGOST2814789CNT12
:
1773 enc
= "GOST89(256)";
1775 case SSL_CHACHA20POLY1305
:
1776 enc
= "CHACHA20/POLY1305(256)";
1800 case SSL_GOST89MAC12
:
1806 case SSL_GOST12_256
:
1807 case SSL_GOST12_512
:
1815 BIO_snprintf(buf
, len
, format
, cipher
->name
, ver
, kx
, au
, enc
, mac
);
1820 const char *SSL_CIPHER_get_version(const SSL_CIPHER
*c
)
1826 * Backwards-compatibility crutch. In almost all contexts we report TLS
1827 * 1.0 as "TLSv1", but for ciphers we report "TLSv1.0".
1829 if (c
->min_tls
== TLS1_VERSION
)
1831 return ssl_protocol_to_string(c
->min_tls
);
1834 /* return the actual cipher being used */
1835 const char *SSL_CIPHER_get_name(const SSL_CIPHER
*c
)
1842 /* number of bits for symmetric cipher */
1843 int SSL_CIPHER_get_bits(const SSL_CIPHER
*c
, int *alg_bits
)
1848 if (alg_bits
!= NULL
)
1849 *alg_bits
= (int) c
->alg_bits
;
1850 ret
= (int) c
->strength_bits
;
1855 uint32_t SSL_CIPHER_get_id(const SSL_CIPHER
*c
)
1860 SSL_COMP
*ssl3_comp_find(STACK_OF(SSL_COMP
) *sk
, int n
)
1865 if ((n
== 0) || (sk
== NULL
))
1867 nn
= sk_SSL_COMP_num(sk
);
1868 for (i
= 0; i
< nn
; i
++) {
1869 ctmp
= sk_SSL_COMP_value(sk
, i
);
1876 #ifdef OPENSSL_NO_COMP
1877 STACK_OF(SSL_COMP
) *SSL_COMP_get_compression_methods(void)
1881 STACK_OF(SSL_COMP
) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP
)
1886 void SSL_COMP_free_compression_methods(void)
1889 int SSL_COMP_add_compression_method(int id
, COMP_METHOD
*cm
)
1895 STACK_OF(SSL_COMP
) *SSL_COMP_get_compression_methods(void)
1897 load_builtin_compressions();
1898 return (ssl_comp_methods
);
1901 STACK_OF(SSL_COMP
) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP
)
1904 STACK_OF(SSL_COMP
) *old_meths
= ssl_comp_methods
;
1905 ssl_comp_methods
= meths
;
1909 static void cmeth_free(SSL_COMP
*cm
)
1914 void SSL_COMP_free_compression_methods(void)
1916 STACK_OF(SSL_COMP
) *old_meths
= ssl_comp_methods
;
1917 ssl_comp_methods
= NULL
;
1918 sk_SSL_COMP_pop_free(old_meths
, cmeth_free
);
1921 int SSL_COMP_add_compression_method(int id
, COMP_METHOD
*cm
)
1925 if (cm
== NULL
|| COMP_get_type(cm
) == NID_undef
)
1929 * According to draft-ietf-tls-compression-04.txt, the
1930 * compression number ranges should be the following:
1932 * 0 to 63: methods defined by the IETF
1933 * 64 to 192: external party methods assigned by IANA
1934 * 193 to 255: reserved for private use
1936 if (id
< 193 || id
> 255) {
1937 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD
,
1938 SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE
);
1942 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE
);
1943 comp
= OPENSSL_malloc(sizeof(*comp
));
1945 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE
);
1946 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD
, ERR_R_MALLOC_FAILURE
);
1952 load_builtin_compressions();
1953 if (ssl_comp_methods
&& sk_SSL_COMP_find(ssl_comp_methods
, comp
) >= 0) {
1955 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE
);
1956 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD
,
1957 SSL_R_DUPLICATE_COMPRESSION_ID
);
1960 if ((ssl_comp_methods
== NULL
)
1961 || !sk_SSL_COMP_push(ssl_comp_methods
, comp
)) {
1963 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE
);
1964 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD
, ERR_R_MALLOC_FAILURE
);
1967 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE
);
1972 const char *SSL_COMP_get_name(const COMP_METHOD
*comp
)
1974 #ifndef OPENSSL_NO_COMP
1975 return comp
? COMP_get_name(comp
) : NULL
;
1981 /* For a cipher return the index corresponding to the certificate type */
1982 int ssl_cipher_get_cert_index(const SSL_CIPHER
*c
)
1986 alg_a
= c
->algorithm_auth
;
1988 if (alg_a
& SSL_aECDSA
)
1989 return SSL_PKEY_ECC
;
1990 else if (alg_a
& SSL_aDSS
)
1991 return SSL_PKEY_DSA_SIGN
;
1992 else if (alg_a
& SSL_aRSA
)
1993 return SSL_PKEY_RSA_ENC
;
1994 else if (alg_a
& SSL_aGOST12
)
1995 return SSL_PKEY_GOST_EC
;
1996 else if (alg_a
& SSL_aGOST01
)
1997 return SSL_PKEY_GOST01
;
2002 const SSL_CIPHER
*ssl_get_cipher_by_char(SSL
*ssl
, const unsigned char *ptr
)
2004 const SSL_CIPHER
*c
= ssl
->method
->get_cipher_by_char(ptr
);
2006 if (c
== NULL
|| c
->valid
== 0)
2011 const SSL_CIPHER
*SSL_CIPHER_find(SSL
*ssl
, const unsigned char *ptr
)
2013 return ssl
->method
->get_cipher_by_char(ptr
);
2016 int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER
*c
)
2021 i
= ssl_cipher_info_lookup(ssl_cipher_table_cipher
, c
->algorithm_enc
);
2024 return ssl_cipher_table_cipher
[i
].nid
;
2027 int SSL_CIPHER_get_digest_nid(const SSL_CIPHER
*c
)
2029 int i
= ssl_cipher_info_lookup(ssl_cipher_table_mac
, c
->algorithm_mac
);
2033 return ssl_cipher_table_mac
[i
].nid
;
2036 int SSL_CIPHER_get_kx_nid(const SSL_CIPHER
*c
)
2038 int i
= ssl_cipher_info_lookup(ssl_cipher_table_kx
, c
->algorithm_mkey
);
2042 return ssl_cipher_table_kx
[i
].nid
;
2045 int SSL_CIPHER_get_auth_nid(const SSL_CIPHER
*c
)
2047 int i
= ssl_cipher_info_lookup(ssl_cipher_table_auth
, c
->algorithm_auth
);
2051 return ssl_cipher_table_auth
[i
].nid
;
2054 int SSL_CIPHER_is_aead(const SSL_CIPHER
*c
)
2056 return (c
->algorithm_mac
& SSL_AEAD
) ? 1 : 0;