1 /* $OpenBSD: ssl_ciph.c,v 1.105 2018/09/08 14:39:41 jsing Exp $ */
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
145 #include <openssl/objects.h>
147 #ifndef OPENSSL_NO_ENGINE
148 #include <openssl/engine.h>
151 #include "ssl_locl.h"
153 #define SSL_ENC_3DES_IDX 0
154 #define SSL_ENC_RC4_IDX 1
155 #define SSL_ENC_NULL_IDX 2
156 #define SSL_ENC_AES128_IDX 3
157 #define SSL_ENC_AES256_IDX 4
158 #define SSL_ENC_CAMELLIA128_IDX 5
159 #define SSL_ENC_CAMELLIA256_IDX 6
160 #define SSL_ENC_GOST89_IDX 7
161 #define SSL_ENC_NUM_IDX 8
163 static const EVP_CIPHER
*ssl_cipher_methods
[SSL_ENC_NUM_IDX
] = {
164 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
167 #define SSL_MD_MD5_IDX 0
168 #define SSL_MD_SHA1_IDX 1
169 #define SSL_MD_GOST94_IDX 2
170 #define SSL_MD_GOST89MAC_IDX 3
171 #define SSL_MD_SHA256_IDX 4
172 #define SSL_MD_SHA384_IDX 5
173 #define SSL_MD_STREEBOG256_IDX 6
174 #define SSL_MD_NUM_IDX 7
175 static const EVP_MD
*ssl_digest_methods
[SSL_MD_NUM_IDX
] = {
176 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
179 static int ssl_mac_pkey_id
[SSL_MD_NUM_IDX
] = {
180 EVP_PKEY_HMAC
, EVP_PKEY_HMAC
, EVP_PKEY_HMAC
, EVP_PKEY_GOSTIMIT
,
181 EVP_PKEY_HMAC
, EVP_PKEY_HMAC
, EVP_PKEY_HMAC
,
184 static int ssl_mac_secret_size
[SSL_MD_NUM_IDX
] = {
189 #define CIPHER_KILL 2
192 #define CIPHER_SPECIAL 5
194 typedef struct cipher_order_st
{
195 const SSL_CIPHER
*cipher
;
198 struct cipher_order_st
*next
, *prev
;
201 static const SSL_CIPHER cipher_aliases
[] = {
203 /* "ALL" doesn't include eNULL (must be specifically enabled) */
206 .algorithm_enc
= ~SSL_eNULL
,
209 /* "COMPLEMENTOFALL" */
211 .name
= SSL_TXT_CMPALL
,
212 .algorithm_enc
= SSL_eNULL
,
216 * "COMPLEMENTOFDEFAULT"
217 * (does *not* include ciphersuites not found in ALL!)
220 .name
= SSL_TXT_CMPDEF
,
221 .algorithm_mkey
= SSL_kDHE
|SSL_kECDHE
,
222 .algorithm_auth
= SSL_aNULL
,
223 .algorithm_enc
= ~SSL_eNULL
,
227 * key exchange aliases
228 * (some of those using only a single bit here combine multiple key
229 * exchange algs according to the RFCs, e.g. kEDH combines DHE_DSS
233 .name
= SSL_TXT_kRSA
,
234 .algorithm_mkey
= SSL_kRSA
,
237 .name
= SSL_TXT_kEDH
,
238 .algorithm_mkey
= SSL_kDHE
,
242 .algorithm_mkey
= SSL_kDHE
,
245 .name
= SSL_TXT_kEECDH
,
246 .algorithm_mkey
= SSL_kECDHE
,
249 .name
= SSL_TXT_ECDH
,
250 .algorithm_mkey
= SSL_kECDHE
,
253 .name
= SSL_TXT_kGOST
,
254 .algorithm_mkey
= SSL_kGOST
,
257 /* server authentication aliases */
259 .name
= SSL_TXT_aRSA
,
260 .algorithm_auth
= SSL_aRSA
,
263 .name
= SSL_TXT_aDSS
,
264 .algorithm_auth
= SSL_aDSS
,
268 .algorithm_auth
= SSL_aDSS
,
271 .name
= SSL_TXT_aNULL
,
272 .algorithm_auth
= SSL_aNULL
,
275 .name
= SSL_TXT_aECDSA
,
276 .algorithm_auth
= SSL_aECDSA
,
279 .name
= SSL_TXT_ECDSA
,
280 .algorithm_auth
= SSL_aECDSA
,
283 .name
= SSL_TXT_aGOST01
,
284 .algorithm_auth
= SSL_aGOST01
,
287 .name
= SSL_TXT_aGOST
,
288 .algorithm_auth
= SSL_aGOST01
,
291 /* aliases combining key exchange and server authentication */
294 .algorithm_mkey
= SSL_kDHE
,
295 .algorithm_auth
= ~SSL_aNULL
,
299 .algorithm_mkey
= SSL_kDHE
,
300 .algorithm_auth
= ~SSL_aNULL
,
303 .name
= SSL_TXT_ECDHE
,
304 .algorithm_mkey
= SSL_kECDHE
,
305 .algorithm_auth
= ~SSL_aNULL
,
308 .name
= SSL_TXT_EECDH
,
309 .algorithm_mkey
= SSL_kECDHE
,
310 .algorithm_auth
= ~SSL_aNULL
,
313 .name
= SSL_TXT_NULL
,
314 .algorithm_enc
= SSL_eNULL
,
318 .algorithm_mkey
= SSL_kRSA
,
319 .algorithm_auth
= SSL_aRSA
,
323 .algorithm_mkey
= SSL_kDHE
,
324 .algorithm_auth
= SSL_aNULL
,
327 .name
= SSL_TXT_AECDH
,
328 .algorithm_mkey
= SSL_kECDHE
,
329 .algorithm_auth
= SSL_aNULL
,
332 /* symmetric encryption aliases */
334 .name
= SSL_TXT_3DES
,
335 .algorithm_enc
= SSL_3DES
,
339 .algorithm_enc
= SSL_RC4
,
342 .name
= SSL_TXT_eNULL
,
343 .algorithm_enc
= SSL_eNULL
,
346 .name
= SSL_TXT_AES128
,
347 .algorithm_enc
= SSL_AES128
|SSL_AES128GCM
,
350 .name
= SSL_TXT_AES256
,
351 .algorithm_enc
= SSL_AES256
|SSL_AES256GCM
,
355 .algorithm_enc
= SSL_AES
,
358 .name
= SSL_TXT_AES_GCM
,
359 .algorithm_enc
= SSL_AES128GCM
|SSL_AES256GCM
,
362 .name
= SSL_TXT_CAMELLIA128
,
363 .algorithm_enc
= SSL_CAMELLIA128
,
366 .name
= SSL_TXT_CAMELLIA256
,
367 .algorithm_enc
= SSL_CAMELLIA256
,
370 .name
= SSL_TXT_CAMELLIA
,
371 .algorithm_enc
= SSL_CAMELLIA128
|SSL_CAMELLIA256
,
374 .name
= SSL_TXT_CHACHA20
,
375 .algorithm_enc
= SSL_CHACHA20POLY1305
,
380 .name
= SSL_TXT_AEAD
,
381 .algorithm_mac
= SSL_AEAD
,
385 .algorithm_mac
= SSL_MD5
,
388 .name
= SSL_TXT_SHA1
,
389 .algorithm_mac
= SSL_SHA1
,
393 .algorithm_mac
= SSL_SHA1
,
396 .name
= SSL_TXT_GOST94
,
397 .algorithm_mac
= SSL_GOST94
,
400 .name
= SSL_TXT_GOST89MAC
,
401 .algorithm_mac
= SSL_GOST89MAC
,
404 .name
= SSL_TXT_SHA256
,
405 .algorithm_mac
= SSL_SHA256
,
408 .name
= SSL_TXT_SHA384
,
409 .algorithm_mac
= SSL_SHA384
,
412 .name
= SSL_TXT_STREEBOG256
,
413 .algorithm_mac
= SSL_STREEBOG256
,
416 /* protocol version aliases */
418 .name
= SSL_TXT_SSLV3
,
419 .algorithm_ssl
= SSL_SSLV3
,
422 .name
= SSL_TXT_TLSV1
,
423 .algorithm_ssl
= SSL_TLSV1
,
426 .name
= SSL_TXT_TLSV1_2
,
427 .algorithm_ssl
= SSL_TLSV1_2
,
430 /* strength classes */
433 .algo_strength
= SSL_LOW
,
436 .name
= SSL_TXT_MEDIUM
,
437 .algo_strength
= SSL_MEDIUM
,
440 .name
= SSL_TXT_HIGH
,
441 .algo_strength
= SSL_HIGH
,
446 ssl_load_ciphers(void)
448 ssl_cipher_methods
[SSL_ENC_3DES_IDX
] =
449 EVP_get_cipherbyname(SN_des_ede3_cbc
);
450 ssl_cipher_methods
[SSL_ENC_RC4_IDX
] =
451 EVP_get_cipherbyname(SN_rc4
);
452 ssl_cipher_methods
[SSL_ENC_AES128_IDX
] =
453 EVP_get_cipherbyname(SN_aes_128_cbc
);
454 ssl_cipher_methods
[SSL_ENC_AES256_IDX
] =
455 EVP_get_cipherbyname(SN_aes_256_cbc
);
456 ssl_cipher_methods
[SSL_ENC_CAMELLIA128_IDX
] =
457 EVP_get_cipherbyname(SN_camellia_128_cbc
);
458 ssl_cipher_methods
[SSL_ENC_CAMELLIA256_IDX
] =
459 EVP_get_cipherbyname(SN_camellia_256_cbc
);
460 ssl_cipher_methods
[SSL_ENC_GOST89_IDX
] =
461 EVP_get_cipherbyname(SN_gost89_cnt
);
463 ssl_digest_methods
[SSL_MD_MD5_IDX
] =
464 EVP_get_digestbyname(SN_md5
);
465 ssl_mac_secret_size
[SSL_MD_MD5_IDX
] =
466 EVP_MD_size(ssl_digest_methods
[SSL_MD_MD5_IDX
]);
467 OPENSSL_assert(ssl_mac_secret_size
[SSL_MD_MD5_IDX
] >= 0);
468 ssl_digest_methods
[SSL_MD_SHA1_IDX
] =
469 EVP_get_digestbyname(SN_sha1
);
470 ssl_mac_secret_size
[SSL_MD_SHA1_IDX
] =
471 EVP_MD_size(ssl_digest_methods
[SSL_MD_SHA1_IDX
]);
472 OPENSSL_assert(ssl_mac_secret_size
[SSL_MD_SHA1_IDX
] >= 0);
473 ssl_digest_methods
[SSL_MD_GOST94_IDX
] =
474 EVP_get_digestbyname(SN_id_GostR3411_94
);
475 if (ssl_digest_methods
[SSL_MD_GOST94_IDX
]) {
476 ssl_mac_secret_size
[SSL_MD_GOST94_IDX
] =
477 EVP_MD_size(ssl_digest_methods
[SSL_MD_GOST94_IDX
]);
478 OPENSSL_assert(ssl_mac_secret_size
[SSL_MD_GOST94_IDX
] >= 0);
480 ssl_digest_methods
[SSL_MD_GOST89MAC_IDX
] =
481 EVP_get_digestbyname(SN_id_Gost28147_89_MAC
);
482 if (ssl_mac_pkey_id
[SSL_MD_GOST89MAC_IDX
]) {
483 ssl_mac_secret_size
[SSL_MD_GOST89MAC_IDX
] = 32;
486 ssl_digest_methods
[SSL_MD_SHA256_IDX
] =
487 EVP_get_digestbyname(SN_sha256
);
488 ssl_mac_secret_size
[SSL_MD_SHA256_IDX
] =
489 EVP_MD_size(ssl_digest_methods
[SSL_MD_SHA256_IDX
]);
490 ssl_digest_methods
[SSL_MD_SHA384_IDX
] =
491 EVP_get_digestbyname(SN_sha384
);
492 ssl_mac_secret_size
[SSL_MD_SHA384_IDX
] =
493 EVP_MD_size(ssl_digest_methods
[SSL_MD_SHA384_IDX
]);
494 ssl_digest_methods
[SSL_MD_STREEBOG256_IDX
] =
495 EVP_get_digestbyname(SN_id_tc26_gost3411_2012_256
);
496 ssl_mac_secret_size
[SSL_MD_STREEBOG256_IDX
] =
497 EVP_MD_size(ssl_digest_methods
[SSL_MD_STREEBOG256_IDX
]);
501 ssl_cipher_get_evp(const SSL_SESSION
*s
, const EVP_CIPHER
**enc
,
502 const EVP_MD
**md
, int *mac_pkey_type
, int *mac_secret_size
)
512 * This function does not handle EVP_AEAD.
513 * See ssl_cipher_get_aead_evp instead.
515 if (c
->algorithm_mac
& SSL_AEAD
)
518 if ((enc
== NULL
) || (md
== NULL
))
521 switch (c
->algorithm_enc
) {
523 i
= SSL_ENC_3DES_IDX
;
529 i
= SSL_ENC_NULL_IDX
;
532 i
= SSL_ENC_AES128_IDX
;
535 i
= SSL_ENC_AES256_IDX
;
537 case SSL_CAMELLIA128
:
538 i
= SSL_ENC_CAMELLIA128_IDX
;
540 case SSL_CAMELLIA256
:
541 i
= SSL_ENC_CAMELLIA256_IDX
;
543 case SSL_eGOST2814789CNT
:
544 i
= SSL_ENC_GOST89_IDX
;
551 if ((i
< 0) || (i
>= SSL_ENC_NUM_IDX
))
554 if (i
== SSL_ENC_NULL_IDX
)
555 *enc
= EVP_enc_null();
557 *enc
= ssl_cipher_methods
[i
];
560 switch (c
->algorithm_mac
) {
568 i
= SSL_MD_SHA256_IDX
;
571 i
= SSL_MD_SHA384_IDX
;
574 i
= SSL_MD_GOST94_IDX
;
577 i
= SSL_MD_GOST89MAC_IDX
;
579 case SSL_STREEBOG256
:
580 i
= SSL_MD_STREEBOG256_IDX
;
586 if ((i
< 0) || (i
>= SSL_MD_NUM_IDX
)) {
589 if (mac_pkey_type
!= NULL
)
590 *mac_pkey_type
= NID_undef
;
591 if (mac_secret_size
!= NULL
)
592 *mac_secret_size
= 0;
594 *md
= ssl_digest_methods
[i
];
595 if (mac_pkey_type
!= NULL
)
596 *mac_pkey_type
= ssl_mac_pkey_id
[i
];
597 if (mac_secret_size
!= NULL
)
598 *mac_secret_size
= ssl_mac_secret_size
[i
];
601 if (*enc
== NULL
|| *md
== NULL
||
602 (mac_pkey_type
!= NULL
&& *mac_pkey_type
== NID_undef
))
606 * EVP_CIPH_FLAG_AEAD_CIPHER and EVP_CIPH_GCM_MODE ciphers are not
607 * supported via EVP_CIPHER (they should be using EVP_AEAD instead).
609 if (EVP_CIPHER_flags(*enc
) & EVP_CIPH_FLAG_AEAD_CIPHER
)
611 if (EVP_CIPHER_mode(*enc
) == EVP_CIPH_GCM_MODE
)
618 * ssl_cipher_get_evp_aead sets aead to point to the correct EVP_AEAD object
619 * for s->cipher. It returns 1 on success and 0 on error.
622 ssl_cipher_get_evp_aead(const SSL_SESSION
*s
, const EVP_AEAD
**aead
)
624 const SSL_CIPHER
*c
= s
->cipher
;
630 if ((c
->algorithm_mac
& SSL_AEAD
) == 0)
633 switch (c
->algorithm_enc
) {
635 *aead
= EVP_aead_aes_128_gcm();
638 *aead
= EVP_aead_aes_256_gcm();
640 case SSL_CHACHA20POLY1305
:
641 *aead
= EVP_aead_chacha20_poly1305();
650 ssl_get_handshake_evp_md(SSL
*s
, const EVP_MD
**md
)
654 switch (ssl_get_algorithm2(s
) & SSL_HANDSHAKE_MAC_MASK
) {
655 case SSL_HANDSHAKE_MAC_DEFAULT
:
656 *md
= EVP_md5_sha1();
658 case SSL_HANDSHAKE_MAC_GOST94
:
659 *md
= EVP_gostr341194();
661 case SSL_HANDSHAKE_MAC_SHA256
:
664 case SSL_HANDSHAKE_MAC_SHA384
:
667 case SSL_HANDSHAKE_MAC_STREEBOG256
:
668 *md
= EVP_streebog256();
677 #define ITEM_SEP(a) \
678 (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
681 ll_append_tail(CIPHER_ORDER
**head
, CIPHER_ORDER
*curr
,
688 if (curr
->prev
!= NULL
)
689 curr
->prev
->next
= curr
->next
;
690 if (curr
->next
!= NULL
)
691 curr
->next
->prev
= curr
->prev
;
692 (*tail
)->next
= curr
;
699 ll_append_head(CIPHER_ORDER
**head
, CIPHER_ORDER
*curr
,
706 if (curr
->next
!= NULL
)
707 curr
->next
->prev
= curr
->prev
;
708 if (curr
->prev
!= NULL
)
709 curr
->prev
->next
= curr
->next
;
710 (*head
)->prev
= curr
;
717 ssl_cipher_get_disabled(unsigned long *mkey
, unsigned long *auth
,
718 unsigned long *enc
, unsigned long *mac
, unsigned long *ssl
)
727 * Check for the availability of GOST 34.10 public/private key
728 * algorithms. If they are not available disable the associated
729 * authentication and key exchange algorithms.
731 if (EVP_PKEY_meth_find(NID_id_GostR3410_2001
) == NULL
) {
732 *auth
|= SSL_aGOST01
;
736 #ifdef SSL_FORBID_ENULL
740 *enc
|= (ssl_cipher_methods
[SSL_ENC_3DES_IDX
] == NULL
) ? SSL_3DES
: 0;
741 *enc
|= (ssl_cipher_methods
[SSL_ENC_RC4_IDX
] == NULL
) ? SSL_RC4
: 0;
742 *enc
|= (ssl_cipher_methods
[SSL_ENC_AES128_IDX
] == NULL
) ? SSL_AES128
: 0;
743 *enc
|= (ssl_cipher_methods
[SSL_ENC_AES256_IDX
] == NULL
) ? SSL_AES256
: 0;
744 *enc
|= (ssl_cipher_methods
[SSL_ENC_CAMELLIA128_IDX
] == NULL
) ? SSL_CAMELLIA128
: 0;
745 *enc
|= (ssl_cipher_methods
[SSL_ENC_CAMELLIA256_IDX
] == NULL
) ? SSL_CAMELLIA256
: 0;
746 *enc
|= (ssl_cipher_methods
[SSL_ENC_GOST89_IDX
] == NULL
) ? SSL_eGOST2814789CNT
: 0;
748 *mac
|= (ssl_digest_methods
[SSL_MD_MD5_IDX
] == NULL
) ? SSL_MD5
: 0;
749 *mac
|= (ssl_digest_methods
[SSL_MD_SHA1_IDX
] == NULL
) ? SSL_SHA1
: 0;
750 *mac
|= (ssl_digest_methods
[SSL_MD_SHA256_IDX
] == NULL
) ? SSL_SHA256
: 0;
751 *mac
|= (ssl_digest_methods
[SSL_MD_SHA384_IDX
] == NULL
) ? SSL_SHA384
: 0;
752 *mac
|= (ssl_digest_methods
[SSL_MD_GOST94_IDX
] == NULL
) ? SSL_GOST94
: 0;
753 *mac
|= (ssl_digest_methods
[SSL_MD_GOST89MAC_IDX
] == NULL
) ? SSL_GOST89MAC
: 0;
754 *mac
|= (ssl_digest_methods
[SSL_MD_STREEBOG256_IDX
] == NULL
) ? SSL_STREEBOG256
: 0;
758 ssl_cipher_collect_ciphers(const SSL_METHOD
*ssl_method
, int num_of_ciphers
,
759 unsigned long disabled_mkey
, unsigned long disabled_auth
,
760 unsigned long disabled_enc
, unsigned long disabled_mac
,
761 unsigned long disabled_ssl
, CIPHER_ORDER
*co_list
,
762 CIPHER_ORDER
**head_p
, CIPHER_ORDER
**tail_p
)
768 * We have num_of_ciphers descriptions compiled in, depending on the
769 * method selected (SSLv3, TLSv1, etc). These will later be sorted in
770 * a linked list with at most num entries.
773 /* Get the initial list of ciphers */
774 co_list_num
= 0; /* actual count of ciphers */
775 for (i
= 0; i
< num_of_ciphers
; i
++) {
776 c
= ssl_method
->get_cipher(i
);
777 /* drop those that use any of that is not available */
778 if ((c
!= NULL
) && c
->valid
&&
779 !(c
->algorithm_mkey
& disabled_mkey
) &&
780 !(c
->algorithm_auth
& disabled_auth
) &&
781 !(c
->algorithm_enc
& disabled_enc
) &&
782 !(c
->algorithm_mac
& disabled_mac
) &&
783 !(c
->algorithm_ssl
& disabled_ssl
)) {
784 co_list
[co_list_num
].cipher
= c
;
785 co_list
[co_list_num
].next
= NULL
;
786 co_list
[co_list_num
].prev
= NULL
;
787 co_list
[co_list_num
].active
= 0;
790 if (!sk_push(ca_list,(char *)c)) goto err;
796 * Prepare linked list from list entries
798 if (co_list_num
> 0) {
799 co_list
[0].prev
= NULL
;
801 if (co_list_num
> 1) {
802 co_list
[0].next
= &co_list
[1];
804 for (i
= 1; i
< co_list_num
- 1; i
++) {
805 co_list
[i
].prev
= &co_list
[i
- 1];
806 co_list
[i
].next
= &co_list
[i
+ 1];
809 co_list
[co_list_num
- 1].prev
=
810 &co_list
[co_list_num
- 2];
813 co_list
[co_list_num
- 1].next
= NULL
;
815 *head_p
= &co_list
[0];
816 *tail_p
= &co_list
[co_list_num
- 1];
821 ssl_cipher_collect_aliases(const SSL_CIPHER
**ca_list
, int num_of_group_aliases
,
822 unsigned long disabled_mkey
, unsigned long disabled_auth
,
823 unsigned long disabled_enc
, unsigned long disabled_mac
,
824 unsigned long disabled_ssl
, CIPHER_ORDER
*head
)
826 CIPHER_ORDER
*ciph_curr
;
827 const SSL_CIPHER
**ca_curr
;
829 unsigned long mask_mkey
= ~disabled_mkey
;
830 unsigned long mask_auth
= ~disabled_auth
;
831 unsigned long mask_enc
= ~disabled_enc
;
832 unsigned long mask_mac
= ~disabled_mac
;
833 unsigned long mask_ssl
= ~disabled_ssl
;
836 * First, add the real ciphers as already collected
840 while (ciph_curr
!= NULL
) {
841 *ca_curr
= ciph_curr
->cipher
;
843 ciph_curr
= ciph_curr
->next
;
847 * Now we add the available ones from the cipher_aliases[] table.
848 * They represent either one or more algorithms, some of which
849 * in any affected category must be supported (set in enabled_mask),
850 * or represent a cipher strength value (will be added in any case because algorithms=0).
852 for (i
= 0; i
< num_of_group_aliases
; i
++) {
853 unsigned long algorithm_mkey
= cipher_aliases
[i
].algorithm_mkey
;
854 unsigned long algorithm_auth
= cipher_aliases
[i
].algorithm_auth
;
855 unsigned long algorithm_enc
= cipher_aliases
[i
].algorithm_enc
;
856 unsigned long algorithm_mac
= cipher_aliases
[i
].algorithm_mac
;
857 unsigned long algorithm_ssl
= cipher_aliases
[i
].algorithm_ssl
;
860 if ((algorithm_mkey
& mask_mkey
) == 0)
864 if ((algorithm_auth
& mask_auth
) == 0)
868 if ((algorithm_enc
& mask_enc
) == 0)
872 if ((algorithm_mac
& mask_mac
) == 0)
876 if ((algorithm_ssl
& mask_ssl
) == 0)
879 *ca_curr
= (SSL_CIPHER
*)(cipher_aliases
+ i
);
883 *ca_curr
= NULL
; /* end of list */
887 ssl_cipher_apply_rule(unsigned long cipher_id
, unsigned long alg_mkey
,
888 unsigned long alg_auth
, unsigned long alg_enc
, unsigned long alg_mac
,
889 unsigned long alg_ssl
, unsigned long algo_strength
,
890 int rule
, int strength_bits
, CIPHER_ORDER
**head_p
, CIPHER_ORDER
**tail_p
)
892 CIPHER_ORDER
*head
, *tail
, *curr
, *next
, *last
;
893 const SSL_CIPHER
*cp
;
897 if (rule
== CIPHER_DEL
)
898 reverse
= 1; /* needed to maintain sorting between currently deleted ciphers */
916 next
= reverse
? curr
->prev
: curr
->next
;
921 * Selection criteria is either the value of strength_bits
922 * or the algorithms used.
924 if (strength_bits
>= 0) {
925 if (strength_bits
!= cp
->strength_bits
)
929 if (alg_mkey
&& !(alg_mkey
& cp
->algorithm_mkey
))
931 if (alg_auth
&& !(alg_auth
& cp
->algorithm_auth
))
933 if (alg_enc
&& !(alg_enc
& cp
->algorithm_enc
))
935 if (alg_mac
&& !(alg_mac
& cp
->algorithm_mac
))
937 if (alg_ssl
&& !(alg_ssl
& cp
->algorithm_ssl
))
939 if ((algo_strength
& SSL_STRONG_MASK
) && !(algo_strength
& SSL_STRONG_MASK
& cp
->algo_strength
))
944 /* add the cipher if it has not been added yet. */
945 if (rule
== CIPHER_ADD
) {
948 ll_append_tail(&head
, curr
, &tail
);
952 /* Move the added cipher to this location */
953 else if (rule
== CIPHER_ORD
) {
956 ll_append_tail(&head
, curr
, &tail
);
958 } else if (rule
== CIPHER_DEL
) {
961 /* most recently deleted ciphersuites get best positions
962 * for any future CIPHER_ADD (note that the CIPHER_DEL loop
963 * works in reverse to maintain the order) */
964 ll_append_head(&head
, curr
, &tail
);
967 } else if (rule
== CIPHER_KILL
) {
972 curr
->prev
->next
= curr
->next
;
976 if (curr
->next
!= NULL
)
977 curr
->next
->prev
= curr
->prev
;
978 if (curr
->prev
!= NULL
)
979 curr
->prev
->next
= curr
->next
;
990 ssl_cipher_strength_sort(CIPHER_ORDER
**head_p
, CIPHER_ORDER
**tail_p
)
992 int max_strength_bits
, i
, *number_uses
;
996 * This routine sorts the ciphers with descending strength. The sorting
997 * must keep the pre-sorted sequence, so we apply the normal sorting
998 * routine as '+' movement to the end of the list.
1000 max_strength_bits
= 0;
1002 while (curr
!= NULL
) {
1004 (curr
->cipher
->strength_bits
> max_strength_bits
))
1005 max_strength_bits
= curr
->cipher
->strength_bits
;
1009 number_uses
= calloc((max_strength_bits
+ 1), sizeof(int));
1011 SSLerrorx(ERR_R_MALLOC_FAILURE
);
1016 * Now find the strength_bits values actually used
1019 while (curr
!= NULL
) {
1021 number_uses
[curr
->cipher
->strength_bits
]++;
1025 * Go through the list of used strength_bits values in descending
1028 for (i
= max_strength_bits
; i
>= 0; i
--)
1029 if (number_uses
[i
] > 0)
1030 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD
, i
, head_p
, tail_p
);
1037 ssl_cipher_process_rulestr(const char *rule_str
, CIPHER_ORDER
**head_p
,
1038 CIPHER_ORDER
**tail_p
, const SSL_CIPHER
**ca_list
)
1040 unsigned long alg_mkey
, alg_auth
, alg_enc
, alg_mac
, alg_ssl
;
1041 unsigned long algo_strength
;
1042 int j
, multi
, found
, rule
, retval
, ok
, buflen
;
1043 unsigned long cipher_id
= 0;
1044 const char *l
, *buf
;
1058 } else if (ch
== '+') {
1061 } else if (ch
== '!') {
1064 } else if (ch
== '@') {
1065 rule
= CIPHER_SPECIAL
;
1087 while (((ch
>= 'A') && (ch
<= 'Z')) ||
1088 ((ch
>= '0') && (ch
<= '9')) ||
1089 ((ch
>= 'a') && (ch
<= 'z')) ||
1090 (ch
== '-') || (ch
== '.')) {
1097 * We hit something we cannot deal with,
1098 * it is no command or separator nor
1099 * alphanumeric, so we call this an error.
1101 SSLerrorx(SSL_R_INVALID_COMMAND
);
1107 if (rule
== CIPHER_SPECIAL
) {
1108 /* unused -- avoid compiler warning */
1110 /* special treatment */
1114 /* check for multi-part specification */
1122 * Now search for the cipher alias in the ca_list.
1123 * Be careful with the strncmp, because the "buflen"
1124 * limitation will make the rule "ADH:SOME" and the
1125 * cipher "ADH-MY-CIPHER" look like a match for
1126 * buflen=3. So additionally check whether the cipher
1127 * name found has the correct length. We can save a
1128 * strlen() call: just checking for the '\0' at the
1129 * right place is sufficient, we have to strncmp()
1130 * anyway (we cannot use strcmp(), because buf is not
1135 while (ca_list
[j
]) {
1136 if (!strncmp(buf
, ca_list
[j
]->name
, buflen
) &&
1137 (ca_list
[j
]->name
[buflen
] == '\0')) {
1145 break; /* ignore this entry */
1147 if (ca_list
[j
]->algorithm_mkey
) {
1149 alg_mkey
&= ca_list
[j
]->algorithm_mkey
;
1155 alg_mkey
= ca_list
[j
]->algorithm_mkey
;
1158 if (ca_list
[j
]->algorithm_auth
) {
1160 alg_auth
&= ca_list
[j
]->algorithm_auth
;
1166 alg_auth
= ca_list
[j
]->algorithm_auth
;
1169 if (ca_list
[j
]->algorithm_enc
) {
1171 alg_enc
&= ca_list
[j
]->algorithm_enc
;
1177 alg_enc
= ca_list
[j
]->algorithm_enc
;
1180 if (ca_list
[j
]->algorithm_mac
) {
1182 alg_mac
&= ca_list
[j
]->algorithm_mac
;
1188 alg_mac
= ca_list
[j
]->algorithm_mac
;
1191 if (ca_list
[j
]->algo_strength
& SSL_STRONG_MASK
) {
1192 if (algo_strength
& SSL_STRONG_MASK
) {
1194 (ca_list
[j
]->algo_strength
&
1195 SSL_STRONG_MASK
) | ~SSL_STRONG_MASK
;
1196 if (!(algo_strength
&
1203 ca_list
[j
]->algo_strength
&
1207 if (ca_list
[j
]->valid
) {
1209 * explicit ciphersuite found; its protocol
1210 * version does not become part of the search
1213 cipher_id
= ca_list
[j
]->id
;
1216 * not an explicit ciphersuite; only in this
1217 * case, the protocol version is considered
1218 * part of the search pattern
1220 if (ca_list
[j
]->algorithm_ssl
) {
1223 ca_list
[j
]->algorithm_ssl
;
1230 ca_list
[j
]->algorithm_ssl
;
1239 * Ok, we have the rule, now apply it
1241 if (rule
== CIPHER_SPECIAL
) {
1242 /* special command */
1244 if ((buflen
== 8) && !strncmp(buf
, "STRENGTH", 8))
1245 ok
= ssl_cipher_strength_sort(head_p
, tail_p
);
1247 SSLerrorx(SSL_R_INVALID_COMMAND
);
1251 * We do not support any "multi" options
1252 * together with "@", so throw away the
1253 * rest of the command, if any left, until
1254 * end or ':' is found.
1256 while ((*l
!= '\0') && !ITEM_SEP(*l
))
1259 ssl_cipher_apply_rule(cipher_id
, alg_mkey
, alg_auth
,
1260 alg_enc
, alg_mac
, alg_ssl
, algo_strength
, rule
,
1261 -1, head_p
, tail_p
);
1263 while ((*l
!= '\0') && !ITEM_SEP(*l
))
1274 ssl_aes_is_accelerated(void)
1276 #if defined(__i386__) || defined(__x86_64__)
1277 return ((OPENSSL_cpu_caps() & (1ULL << 57)) != 0);
1283 STACK_OF(SSL_CIPHER
) *
1284 ssl_create_cipher_list(const SSL_METHOD
*ssl_method
,
1285 STACK_OF(SSL_CIPHER
) **cipher_list
,
1286 STACK_OF(SSL_CIPHER
) **cipher_list_by_id
,
1287 const char *rule_str
)
1289 int ok
, num_of_ciphers
, num_of_alias_max
, num_of_group_aliases
;
1290 unsigned long disabled_mkey
, disabled_auth
, disabled_enc
, disabled_mac
, disabled_ssl
;
1291 STACK_OF(SSL_CIPHER
) *cipherstack
, *tmp_cipher_list
;
1293 CIPHER_ORDER
*co_list
= NULL
, *head
= NULL
, *tail
= NULL
, *curr
;
1294 const SSL_CIPHER
**ca_list
= NULL
;
1297 * Return with error if nothing to do.
1299 if (rule_str
== NULL
|| cipher_list
== NULL
|| cipher_list_by_id
== NULL
)
1303 * To reduce the work to do we only want to process the compiled
1304 * in algorithms, so we first get the mask of disabled ciphers.
1306 ssl_cipher_get_disabled(&disabled_mkey
, &disabled_auth
, &disabled_enc
, &disabled_mac
, &disabled_ssl
);
1309 * Now we have to collect the available ciphers from the compiled
1310 * in ciphers. We cannot get more than the number compiled in, so
1311 * it is used for allocation.
1313 num_of_ciphers
= ssl_method
->num_ciphers();
1314 co_list
= reallocarray(NULL
, num_of_ciphers
, sizeof(CIPHER_ORDER
));
1315 if (co_list
== NULL
) {
1316 SSLerrorx(ERR_R_MALLOC_FAILURE
);
1317 return(NULL
); /* Failure */
1320 ssl_cipher_collect_ciphers(ssl_method
, num_of_ciphers
,
1321 disabled_mkey
, disabled_auth
, disabled_enc
, disabled_mac
, disabled_ssl
,
1322 co_list
, &head
, &tail
);
1325 /* Now arrange all ciphers by preference: */
1327 /* Everything else being equal, prefer ephemeral ECDH over other key exchange mechanisms */
1328 ssl_cipher_apply_rule(0, SSL_kECDHE
, 0, 0, 0, 0, 0, CIPHER_ADD
, -1, &head
, &tail
);
1329 ssl_cipher_apply_rule(0, SSL_kECDHE
, 0, 0, 0, 0, 0, CIPHER_DEL
, -1, &head
, &tail
);
1331 if (ssl_aes_is_accelerated() == 1) {
1333 * We have hardware assisted AES - prefer AES as a symmetric
1334 * cipher, with CHACHA20 second.
1336 ssl_cipher_apply_rule(0, 0, 0, SSL_AES
, 0, 0, 0,
1337 CIPHER_ADD
, -1, &head
, &tail
);
1338 ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20POLY1305
,
1339 0, 0, 0, CIPHER_ADD
, -1, &head
, &tail
);
1342 * CHACHA20 is fast and safe on all hardware and is thus our
1343 * preferred symmetric cipher, with AES second.
1345 ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20POLY1305
,
1346 0, 0, 0, CIPHER_ADD
, -1, &head
, &tail
);
1347 ssl_cipher_apply_rule(0, 0, 0, SSL_AES
, 0, 0, 0,
1348 CIPHER_ADD
, -1, &head
, &tail
);
1351 /* Temporarily enable everything else for sorting */
1352 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD
, -1, &head
, &tail
);
1354 /* Low priority for MD5 */
1355 ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5
, 0, 0, CIPHER_ORD
, -1, &head
, &tail
);
1357 /* Move anonymous ciphers to the end. Usually, these will remain disabled.
1358 * (For applications that allow them, they aren't too bad, but we prefer
1359 * authenticated ciphers.) */
1360 ssl_cipher_apply_rule(0, 0, SSL_aNULL
, 0, 0, 0, 0, CIPHER_ORD
, -1, &head
, &tail
);
1362 /* Move ciphers without forward secrecy to the end */
1363 ssl_cipher_apply_rule(0, SSL_kRSA
, 0, 0, 0, 0, 0, CIPHER_ORD
, -1, &head
, &tail
);
1365 /* RC4 is sort of broken - move it to the end */
1366 ssl_cipher_apply_rule(0, 0, 0, SSL_RC4
, 0, 0, 0, CIPHER_ORD
, -1, &head
, &tail
);
1368 /* Now sort by symmetric encryption strength. The above ordering remains
1369 * in force within each class */
1370 if (!ssl_cipher_strength_sort(&head
, &tail
)) {
1375 /* Now disable everything (maintaining the ordering!) */
1376 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL
, -1, &head
, &tail
);
1380 * We also need cipher aliases for selecting based on the rule_str.
1381 * There might be two types of entries in the rule_str: 1) names
1382 * of ciphers themselves 2) aliases for groups of ciphers.
1383 * For 1) we need the available ciphers and for 2) the cipher
1384 * groups of cipher_aliases added together in one list (otherwise
1385 * we would be happy with just the cipher_aliases table).
1387 num_of_group_aliases
= sizeof(cipher_aliases
) / sizeof(SSL_CIPHER
);
1388 num_of_alias_max
= num_of_ciphers
+ num_of_group_aliases
+ 1;
1389 ca_list
= reallocarray(NULL
, num_of_alias_max
, sizeof(SSL_CIPHER
*));
1390 if (ca_list
== NULL
) {
1392 SSLerrorx(ERR_R_MALLOC_FAILURE
);
1393 return(NULL
); /* Failure */
1395 ssl_cipher_collect_aliases(ca_list
, num_of_group_aliases
,
1396 disabled_mkey
, disabled_auth
, disabled_enc
,
1397 disabled_mac
, disabled_ssl
, head
);
1400 * If the rule_string begins with DEFAULT, apply the default rule
1401 * before using the (possibly available) additional rules.
1405 if (strncmp(rule_str
, "DEFAULT", 7) == 0) {
1406 ok
= ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST
,
1407 &head
, &tail
, ca_list
);
1413 if (ok
&& (strlen(rule_p
) > 0))
1414 ok
= ssl_cipher_process_rulestr(rule_p
, &head
, &tail
, ca_list
);
1416 free((void *)ca_list
); /* Not needed anymore */
1419 /* Rule processing failure */
1425 * Allocate new "cipherstack" for the result, return with error
1426 * if we cannot get one.
1428 if ((cipherstack
= sk_SSL_CIPHER_new_null()) == NULL
) {
1434 * The cipher selection for the list is done. The ciphers are added
1435 * to the resulting precedence to the STACK_OF(SSL_CIPHER).
1437 for (curr
= head
; curr
!= NULL
; curr
= curr
->next
) {
1439 sk_SSL_CIPHER_push(cipherstack
, curr
->cipher
);
1442 free(co_list
); /* Not needed any longer */
1444 tmp_cipher_list
= sk_SSL_CIPHER_dup(cipherstack
);
1445 if (tmp_cipher_list
== NULL
) {
1446 sk_SSL_CIPHER_free(cipherstack
);
1449 sk_SSL_CIPHER_free(*cipher_list
);
1450 *cipher_list
= cipherstack
;
1451 sk_SSL_CIPHER_free(*cipher_list_by_id
);
1452 *cipher_list_by_id
= tmp_cipher_list
;
1453 (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id
,
1454 ssl_cipher_ptr_id_cmp
);
1456 sk_SSL_CIPHER_sort(*cipher_list_by_id
);
1457 return (cipherstack
);
1461 SSL_CIPHER_get_by_id(unsigned int id
)
1463 return ssl3_get_cipher_by_id(id
);
1467 SSL_CIPHER_get_by_value(uint16_t value
)
1469 return ssl3_get_cipher_by_value(value
);
1473 SSL_CIPHER_description(const SSL_CIPHER
*cipher
, char *buf
, int len
)
1475 unsigned long alg_mkey
, alg_auth
, alg_enc
, alg_mac
, alg_ssl
, alg2
;
1476 const char *ver
, *kx
, *au
, *enc
, *mac
;
1480 alg_mkey
= cipher
->algorithm_mkey
;
1481 alg_auth
= cipher
->algorithm_auth
;
1482 alg_enc
= cipher
->algorithm_enc
;
1483 alg_mac
= cipher
->algorithm_mac
;
1484 alg_ssl
= cipher
->algorithm_ssl
;
1486 alg2
= cipher
->algorithm2
;
1488 if (alg_ssl
& SSL_SSLV3
)
1490 else if (alg_ssl
& SSL_TLSV1_2
)
1538 enc
= alg2
& SSL2_CF_8_BYTE_ENC
? "RC4(64)" : "RC4(128)";
1550 enc
= "AESGCM(128)";
1553 enc
= "AESGCM(256)";
1555 case SSL_CAMELLIA128
:
1556 enc
= "Camellia(128)";
1558 case SSL_CAMELLIA256
:
1559 enc
= "Camellia(256)";
1561 case SSL_CHACHA20POLY1305
:
1562 enc
= "ChaCha20-Poly1305";
1564 case SSL_eGOST2814789CNT
:
1565 enc
= "GOST-28178-89-CNT";
1594 case SSL_STREEBOG256
:
1595 mac
= "STREEBOG256";
1602 if (asprintf(&ret
, "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s\n",
1603 cipher
->name
, ver
, kx
, au
, enc
, mac
) == -1)
1604 return "OPENSSL_malloc Error";
1607 l
= strlcpy(buf
, ret
, len
);
1611 ret
= "Buffer too small";
1618 SSL_CIPHER_get_version(const SSL_CIPHER
*c
)
1622 if ((c
->id
>> 24) == 3)
1623 return("TLSv1/SSLv3");
1628 /* return the actual cipher being used */
1630 SSL_CIPHER_get_name(const SSL_CIPHER
*c
)
1637 /* number of bits for symmetric cipher */
1639 SSL_CIPHER_get_bits(const SSL_CIPHER
*c
, int *alg_bits
)
1644 if (alg_bits
!= NULL
)
1645 *alg_bits
= c
->alg_bits
;
1646 ret
= c
->strength_bits
;
1652 SSL_CIPHER_get_id(const SSL_CIPHER
*c
)
1658 SSL_CIPHER_get_value(const SSL_CIPHER
*c
)
1660 return ssl3_cipher_get_value(c
);
1664 SSL_CIPHER_get_cipher_nid(const SSL_CIPHER
*c
)
1666 switch (c
->algorithm_enc
) {
1670 return NID_des_ede3_cbc
;
1672 return NID_aes_128_cbc
;
1674 return NID_aes_128_gcm
;
1676 return NID_aes_256_cbc
;
1678 return NID_aes_256_gcm
;
1679 case SSL_CAMELLIA128
:
1680 return NID_camellia_128_cbc
;
1681 case SSL_CAMELLIA256
:
1682 return NID_camellia_256_cbc
;
1683 case SSL_CHACHA20POLY1305
:
1684 return NID_chacha20_poly1305
;
1689 case SSL_eGOST2814789CNT
:
1690 return NID_gost89_cnt
;
1697 SSL_CIPHER_get_digest_nid(const SSL_CIPHER
*c
)
1699 switch (c
->algorithm_mac
) {
1703 return NID_id_Gost28147_89_MAC
;
1705 return NID_id_GostR3411_94
;
1714 case SSL_STREEBOG256
:
1715 return NID_id_tc26_gost3411_2012_256
;
1722 SSL_CIPHER_get_kx_nid(const SSL_CIPHER
*c
)
1724 switch (c
->algorithm_mkey
) {
1728 return NID_kx_ecdhe
;
1739 SSL_CIPHER_get_auth_nid(const SSL_CIPHER
*c
)
1741 switch (c
->algorithm_auth
) {
1743 return NID_auth_null
;
1745 return NID_auth_ecdsa
;
1747 return NID_auth_gost01
;
1749 return NID_auth_rsa
;
1756 SSL_CIPHER_is_aead(const SSL_CIPHER
*c
)
1758 return (c
->algorithm_mac
& SSL_AEAD
) == SSL_AEAD
;
1762 SSL_COMP_get_compression_methods(void)
1768 SSL_COMP_add_compression_method(int id
, void *cm
)
1774 SSL_COMP_get_name(const void *comp
)