2 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
14 #include <openssl/objects.h>
15 #include <openssl/comp.h>
16 #include <openssl/engine.h>
17 #include <openssl/crypto.h>
18 #include <openssl/conf.h>
19 #include <openssl/trace.h>
20 #include "internal/nelem.h"
21 #include "ssl_local.h"
22 #include "internal/thread_once.h"
23 #include "internal/cryptlib.h"
25 /* NB: make sure indices in these tables match values above */
32 /* Table of NIDs for each cipher */
33 static const ssl_cipher_table ssl_cipher_table_cipher
[SSL_ENC_NUM_IDX
] = {
34 {SSL_DES
, NID_des_cbc
}, /* SSL_ENC_DES_IDX 0 */
35 {SSL_3DES
, NID_des_ede3_cbc
}, /* SSL_ENC_3DES_IDX 1 */
36 {SSL_RC4
, NID_rc4
}, /* SSL_ENC_RC4_IDX 2 */
37 {SSL_RC2
, NID_rc2_cbc
}, /* SSL_ENC_RC2_IDX 3 */
38 {SSL_IDEA
, NID_idea_cbc
}, /* SSL_ENC_IDEA_IDX 4 */
39 {SSL_eNULL
, NID_undef
}, /* SSL_ENC_NULL_IDX 5 */
40 {SSL_AES128
, NID_aes_128_cbc
}, /* SSL_ENC_AES128_IDX 6 */
41 {SSL_AES256
, NID_aes_256_cbc
}, /* SSL_ENC_AES256_IDX 7 */
42 {SSL_CAMELLIA128
, NID_camellia_128_cbc
}, /* SSL_ENC_CAMELLIA128_IDX 8 */
43 {SSL_CAMELLIA256
, NID_camellia_256_cbc
}, /* SSL_ENC_CAMELLIA256_IDX 9 */
44 {SSL_eGOST2814789CNT
, NID_gost89_cnt
}, /* SSL_ENC_GOST89_IDX 10 */
45 {SSL_SEED
, NID_seed_cbc
}, /* SSL_ENC_SEED_IDX 11 */
46 {SSL_AES128GCM
, NID_aes_128_gcm
}, /* SSL_ENC_AES128GCM_IDX 12 */
47 {SSL_AES256GCM
, NID_aes_256_gcm
}, /* SSL_ENC_AES256GCM_IDX 13 */
48 {SSL_AES128CCM
, NID_aes_128_ccm
}, /* SSL_ENC_AES128CCM_IDX 14 */
49 {SSL_AES256CCM
, NID_aes_256_ccm
}, /* SSL_ENC_AES256CCM_IDX 15 */
50 {SSL_AES128CCM8
, NID_aes_128_ccm
}, /* SSL_ENC_AES128CCM8_IDX 16 */
51 {SSL_AES256CCM8
, NID_aes_256_ccm
}, /* SSL_ENC_AES256CCM8_IDX 17 */
52 {SSL_eGOST2814789CNT12
, NID_gost89_cnt_12
}, /* SSL_ENC_GOST8912_IDX 18 */
53 {SSL_CHACHA20POLY1305
, NID_chacha20_poly1305
}, /* SSL_ENC_CHACHA_IDX 19 */
54 {SSL_ARIA128GCM
, NID_aria_128_gcm
}, /* SSL_ENC_ARIA128GCM_IDX 20 */
55 {SSL_ARIA256GCM
, NID_aria_256_gcm
}, /* SSL_ENC_ARIA256GCM_IDX 21 */
56 {SSL_MAGMA
, NID_magma_ctr_acpkm
}, /* SSL_ENC_MAGMA_IDX */
57 {SSL_KUZNYECHIK
, NID_kuznyechik_ctr_acpkm
}, /* SSL_ENC_KUZNYECHIK_IDX */
60 #define SSL_COMP_NULL_IDX 0
61 #define SSL_COMP_ZLIB_IDX 1
62 #define SSL_COMP_NUM_IDX 2
64 static STACK_OF(SSL_COMP
) *ssl_comp_methods
= NULL
;
66 #ifndef OPENSSL_NO_COMP
67 static CRYPTO_ONCE ssl_load_builtin_comp_once
= CRYPTO_ONCE_STATIC_INIT
;
70 /* NB: make sure indices in this table matches values above */
71 static const ssl_cipher_table ssl_cipher_table_mac
[SSL_MD_NUM_IDX
] = {
72 {SSL_MD5
, NID_md5
}, /* SSL_MD_MD5_IDX 0 */
73 {SSL_SHA1
, NID_sha1
}, /* SSL_MD_SHA1_IDX 1 */
74 {SSL_GOST94
, NID_id_GostR3411_94
}, /* SSL_MD_GOST94_IDX 2 */
75 {SSL_GOST89MAC
, NID_id_Gost28147_89_MAC
}, /* SSL_MD_GOST89MAC_IDX 3 */
76 {SSL_SHA256
, NID_sha256
}, /* SSL_MD_SHA256_IDX 4 */
77 {SSL_SHA384
, NID_sha384
}, /* SSL_MD_SHA384_IDX 5 */
78 {SSL_GOST12_256
, NID_id_GostR3411_2012_256
}, /* SSL_MD_GOST12_256_IDX 6 */
79 {SSL_GOST89MAC12
, NID_gost_mac_12
}, /* SSL_MD_GOST89MAC12_IDX 7 */
80 {SSL_GOST12_512
, NID_id_GostR3411_2012_512
}, /* SSL_MD_GOST12_512_IDX 8 */
81 {0, NID_md5_sha1
}, /* SSL_MD_MD5_SHA1_IDX 9 */
82 {0, NID_sha224
}, /* SSL_MD_SHA224_IDX 10 */
83 {0, NID_sha512
}, /* SSL_MD_SHA512_IDX 11 */
84 {SSL_MAGMAOMAC
, NID_magma_mac
}, /* sSL_MD_MAGMAOMAC_IDX */
85 {SSL_KUZNYECHIKOMAC
, NID_kuznyechik_mac
} /* SSL_MD_KUZNYECHIKOMAC_IDX */
89 static const ssl_cipher_table ssl_cipher_table_kx
[] = {
90 {SSL_kRSA
, NID_kx_rsa
},
91 {SSL_kECDHE
, NID_kx_ecdhe
},
92 {SSL_kDHE
, NID_kx_dhe
},
93 {SSL_kECDHEPSK
, NID_kx_ecdhe_psk
},
94 {SSL_kDHEPSK
, NID_kx_dhe_psk
},
95 {SSL_kRSAPSK
, NID_kx_rsa_psk
},
96 {SSL_kPSK
, NID_kx_psk
},
97 {SSL_kSRP
, NID_kx_srp
},
98 {SSL_kGOST
, NID_kx_gost
},
99 {SSL_kGOST18
, NID_kx_gost18
},
100 {SSL_kANY
, NID_kx_any
}
103 static const ssl_cipher_table ssl_cipher_table_auth
[] = {
104 {SSL_aRSA
, NID_auth_rsa
},
105 {SSL_aECDSA
, NID_auth_ecdsa
},
106 {SSL_aPSK
, NID_auth_psk
},
107 {SSL_aDSS
, NID_auth_dss
},
108 {SSL_aGOST01
, NID_auth_gost01
},
109 {SSL_aGOST12
, NID_auth_gost12
},
110 {SSL_aSRP
, NID_auth_srp
},
111 {SSL_aNULL
, NID_auth_null
},
112 {SSL_aANY
, NID_auth_any
}
116 /* Utility function for table lookup */
117 static int ssl_cipher_info_find(const ssl_cipher_table
*table
,
118 size_t table_cnt
, uint32_t mask
)
121 for (i
= 0; i
< table_cnt
; i
++, table
++) {
122 if (table
->mask
== mask
)
128 #define ssl_cipher_info_lookup(table, x) \
129 ssl_cipher_info_find(table, OSSL_NELEM(table), x)
132 * PKEY_TYPE for GOST89MAC is known in advance, but, because implementation
133 * is engine-provided, we'll fill it only if corresponding EVP_PKEY_METHOD is
136 static const int default_mac_pkey_id
[SSL_MD_NUM_IDX
] = {
137 /* MD5, SHA, GOST94, MAC89 */
138 EVP_PKEY_HMAC
, EVP_PKEY_HMAC
, EVP_PKEY_HMAC
, NID_undef
,
139 /* SHA256, SHA384, GOST2012_256, MAC89-12 */
140 EVP_PKEY_HMAC
, EVP_PKEY_HMAC
, EVP_PKEY_HMAC
, NID_undef
,
143 /* MD5/SHA1, SHA224, SHA512, MAGMAOMAC, KUZNYECHIKOMAC */
144 NID_undef
, NID_undef
, NID_undef
, NID_undef
, NID_undef
148 #define CIPHER_KILL 2
151 #define CIPHER_SPECIAL 5
153 * Bump the ciphers to the top of the list.
154 * This rule isn't currently supported by the public cipherstring API.
156 #define CIPHER_BUMP 6
158 typedef struct cipher_order_st
{
159 const SSL_CIPHER
*cipher
;
162 struct cipher_order_st
*next
, *prev
;
165 static const SSL_CIPHER cipher_aliases
[] = {
166 /* "ALL" doesn't include eNULL (must be specifically enabled) */
167 {0, SSL_TXT_ALL
, NULL
, 0, 0, 0, ~SSL_eNULL
},
168 /* "COMPLEMENTOFALL" */
169 {0, SSL_TXT_CMPALL
, NULL
, 0, 0, 0, SSL_eNULL
},
172 * "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in
175 {0, SSL_TXT_CMPDEF
, NULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_NOT_DEFAULT
},
178 * key exchange aliases (some of those using only a single bit here
179 * combine multiple key exchange algs according to the RFCs, e.g. kDHE
180 * combines DHE_DSS and DHE_RSA)
182 {0, SSL_TXT_kRSA
, NULL
, 0, SSL_kRSA
},
184 {0, SSL_TXT_kEDH
, NULL
, 0, SSL_kDHE
},
185 {0, SSL_TXT_kDHE
, NULL
, 0, SSL_kDHE
},
186 {0, SSL_TXT_DH
, NULL
, 0, SSL_kDHE
},
188 {0, SSL_TXT_kEECDH
, NULL
, 0, SSL_kECDHE
},
189 {0, SSL_TXT_kECDHE
, NULL
, 0, SSL_kECDHE
},
190 {0, SSL_TXT_ECDH
, NULL
, 0, SSL_kECDHE
},
192 {0, SSL_TXT_kPSK
, NULL
, 0, SSL_kPSK
},
193 {0, SSL_TXT_kRSAPSK
, NULL
, 0, SSL_kRSAPSK
},
194 {0, SSL_TXT_kECDHEPSK
, NULL
, 0, SSL_kECDHEPSK
},
195 {0, SSL_TXT_kDHEPSK
, NULL
, 0, SSL_kDHEPSK
},
196 {0, SSL_TXT_kSRP
, NULL
, 0, SSL_kSRP
},
197 {0, SSL_TXT_kGOST
, NULL
, 0, SSL_kGOST
},
198 {0, SSL_TXT_kGOST18
, NULL
, 0, SSL_kGOST18
},
200 /* server authentication aliases */
201 {0, SSL_TXT_aRSA
, NULL
, 0, 0, SSL_aRSA
},
202 {0, SSL_TXT_aDSS
, NULL
, 0, 0, SSL_aDSS
},
203 {0, SSL_TXT_DSS
, NULL
, 0, 0, SSL_aDSS
},
204 {0, SSL_TXT_aNULL
, NULL
, 0, 0, SSL_aNULL
},
205 {0, SSL_TXT_aECDSA
, NULL
, 0, 0, SSL_aECDSA
},
206 {0, SSL_TXT_ECDSA
, NULL
, 0, 0, SSL_aECDSA
},
207 {0, SSL_TXT_aPSK
, NULL
, 0, 0, SSL_aPSK
},
208 {0, SSL_TXT_aGOST01
, NULL
, 0, 0, SSL_aGOST01
},
209 {0, SSL_TXT_aGOST12
, NULL
, 0, 0, SSL_aGOST12
},
210 {0, SSL_TXT_aGOST
, NULL
, 0, 0, SSL_aGOST01
| SSL_aGOST12
},
211 {0, SSL_TXT_aSRP
, NULL
, 0, 0, SSL_aSRP
},
213 /* aliases combining key exchange and server authentication */
214 {0, SSL_TXT_EDH
, NULL
, 0, SSL_kDHE
, ~SSL_aNULL
},
215 {0, SSL_TXT_DHE
, NULL
, 0, SSL_kDHE
, ~SSL_aNULL
},
216 {0, SSL_TXT_EECDH
, NULL
, 0, SSL_kECDHE
, ~SSL_aNULL
},
217 {0, SSL_TXT_ECDHE
, NULL
, 0, SSL_kECDHE
, ~SSL_aNULL
},
218 {0, SSL_TXT_NULL
, NULL
, 0, 0, 0, SSL_eNULL
},
219 {0, SSL_TXT_RSA
, NULL
, 0, SSL_kRSA
, SSL_aRSA
},
220 {0, SSL_TXT_ADH
, NULL
, 0, SSL_kDHE
, SSL_aNULL
},
221 {0, SSL_TXT_AECDH
, NULL
, 0, SSL_kECDHE
, SSL_aNULL
},
222 {0, SSL_TXT_PSK
, NULL
, 0, SSL_PSK
},
223 {0, SSL_TXT_SRP
, NULL
, 0, SSL_kSRP
},
225 /* symmetric encryption aliases */
226 {0, SSL_TXT_3DES
, NULL
, 0, 0, 0, SSL_3DES
},
227 {0, SSL_TXT_RC4
, NULL
, 0, 0, 0, SSL_RC4
},
228 {0, SSL_TXT_RC2
, NULL
, 0, 0, 0, SSL_RC2
},
229 {0, SSL_TXT_IDEA
, NULL
, 0, 0, 0, SSL_IDEA
},
230 {0, SSL_TXT_SEED
, NULL
, 0, 0, 0, SSL_SEED
},
231 {0, SSL_TXT_eNULL
, NULL
, 0, 0, 0, SSL_eNULL
},
232 {0, SSL_TXT_GOST
, NULL
, 0, 0, 0,
233 SSL_eGOST2814789CNT
| SSL_eGOST2814789CNT12
| SSL_MAGMA
| SSL_KUZNYECHIK
},
234 {0, SSL_TXT_AES128
, NULL
, 0, 0, 0,
235 SSL_AES128
| SSL_AES128GCM
| SSL_AES128CCM
| SSL_AES128CCM8
},
236 {0, SSL_TXT_AES256
, NULL
, 0, 0, 0,
237 SSL_AES256
| SSL_AES256GCM
| SSL_AES256CCM
| SSL_AES256CCM8
},
238 {0, SSL_TXT_AES
, NULL
, 0, 0, 0, SSL_AES
},
239 {0, SSL_TXT_AES_GCM
, NULL
, 0, 0, 0, SSL_AES128GCM
| SSL_AES256GCM
},
240 {0, SSL_TXT_AES_CCM
, NULL
, 0, 0, 0,
241 SSL_AES128CCM
| SSL_AES256CCM
| SSL_AES128CCM8
| SSL_AES256CCM8
},
242 {0, SSL_TXT_AES_CCM_8
, NULL
, 0, 0, 0, SSL_AES128CCM8
| SSL_AES256CCM8
},
243 {0, SSL_TXT_CAMELLIA128
, NULL
, 0, 0, 0, SSL_CAMELLIA128
},
244 {0, SSL_TXT_CAMELLIA256
, NULL
, 0, 0, 0, SSL_CAMELLIA256
},
245 {0, SSL_TXT_CAMELLIA
, NULL
, 0, 0, 0, SSL_CAMELLIA
},
246 {0, SSL_TXT_CHACHA20
, NULL
, 0, 0, 0, SSL_CHACHA20
},
247 {0, SSL_TXT_GOST2012_GOST8912_GOST8912
, NULL
, 0, 0, 0, SSL_eGOST2814789CNT12
},
249 {0, SSL_TXT_ARIA
, NULL
, 0, 0, 0, SSL_ARIA
},
250 {0, SSL_TXT_ARIA_GCM
, NULL
, 0, 0, 0, SSL_ARIA128GCM
| SSL_ARIA256GCM
},
251 {0, SSL_TXT_ARIA128
, NULL
, 0, 0, 0, SSL_ARIA128GCM
},
252 {0, SSL_TXT_ARIA256
, NULL
, 0, 0, 0, SSL_ARIA256GCM
},
253 {0, SSL_TXT_CBC
, NULL
, 0, 0, 0, SSL_CBC
},
256 {0, SSL_TXT_MD5
, NULL
, 0, 0, 0, 0, SSL_MD5
},
257 {0, SSL_TXT_SHA1
, NULL
, 0, 0, 0, 0, SSL_SHA1
},
258 {0, SSL_TXT_SHA
, NULL
, 0, 0, 0, 0, SSL_SHA1
},
259 {0, SSL_TXT_GOST94
, NULL
, 0, 0, 0, 0, SSL_GOST94
},
260 {0, SSL_TXT_GOST89MAC
, NULL
, 0, 0, 0, 0, SSL_GOST89MAC
| SSL_GOST89MAC12
},
261 {0, SSL_TXT_SHA256
, NULL
, 0, 0, 0, 0, SSL_SHA256
},
262 {0, SSL_TXT_SHA384
, NULL
, 0, 0, 0, 0, SSL_SHA384
},
263 {0, SSL_TXT_GOST12
, NULL
, 0, 0, 0, 0, SSL_GOST12_256
},
265 /* protocol version aliases */
266 {0, SSL_TXT_SSLV3
, NULL
, 0, 0, 0, 0, 0, SSL3_VERSION
},
267 {0, SSL_TXT_TLSV1
, NULL
, 0, 0, 0, 0, 0, TLS1_VERSION
},
268 {0, "TLSv1.0", NULL
, 0, 0, 0, 0, 0, TLS1_VERSION
},
269 {0, SSL_TXT_TLSV1_2
, NULL
, 0, 0, 0, 0, 0, TLS1_2_VERSION
},
271 /* strength classes */
272 {0, SSL_TXT_LOW
, NULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_LOW
},
273 {0, SSL_TXT_MEDIUM
, NULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_MEDIUM
},
274 {0, SSL_TXT_HIGH
, NULL
, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_HIGH
},
275 /* FIPS 140-2 approved ciphersuite */
276 {0, SSL_TXT_FIPS
, NULL
, 0, 0, 0, ~SSL_eNULL
, 0, 0, 0, 0, 0, SSL_FIPS
},
278 /* "EDH-" aliases to "DHE-" labels (for backward compatibility) */
279 {0, SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA
, NULL
, 0,
280 SSL_kDHE
, SSL_aDSS
, SSL_3DES
, SSL_SHA1
, 0, 0, 0, 0, SSL_HIGH
| SSL_FIPS
},
281 {0, SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA
, NULL
, 0,
282 SSL_kDHE
, SSL_aRSA
, SSL_3DES
, SSL_SHA1
, 0, 0, 0, 0, SSL_HIGH
| SSL_FIPS
},
287 * Search for public key algorithm with given name and return its pkey_id if
288 * it is available. Otherwise return 0
290 #ifdef OPENSSL_NO_ENGINE
292 static int get_optional_pkey_id(const char *pkey_name
)
294 const EVP_PKEY_ASN1_METHOD
*ameth
;
296 ameth
= EVP_PKEY_asn1_find_str(NULL
, pkey_name
, -1);
297 if (ameth
&& EVP_PKEY_asn1_get0_info(&pkey_id
, NULL
, NULL
, NULL
, NULL
,
305 static int get_optional_pkey_id(const char *pkey_name
)
307 const EVP_PKEY_ASN1_METHOD
*ameth
;
308 ENGINE
*tmpeng
= NULL
;
310 ameth
= EVP_PKEY_asn1_find_str(&tmpeng
, pkey_name
, -1);
312 if (EVP_PKEY_asn1_get0_info(&pkey_id
, NULL
, NULL
, NULL
, NULL
,
316 tls_engine_finish(tmpeng
);
322 int ssl_load_ciphers(SSL_CTX
*ctx
)
325 const ssl_cipher_table
*t
;
326 EVP_KEYEXCH
*kex
= NULL
;
327 EVP_SIGNATURE
*sig
= NULL
;
329 ctx
->disabled_enc_mask
= 0;
330 for (i
= 0, t
= ssl_cipher_table_cipher
; i
< SSL_ENC_NUM_IDX
; i
++, t
++) {
331 if (t
->nid
!= NID_undef
) {
332 const EVP_CIPHER
*cipher
333 = ssl_evp_cipher_fetch(ctx
->libctx
, t
->nid
, ctx
->propq
);
335 ctx
->ssl_cipher_methods
[i
] = cipher
;
337 ctx
->disabled_enc_mask
|= t
->mask
;
340 ctx
->disabled_mac_mask
= 0;
341 for (i
= 0, t
= ssl_cipher_table_mac
; i
< SSL_MD_NUM_IDX
; i
++, t
++) {
343 = ssl_evp_md_fetch(ctx
->libctx
, t
->nid
, ctx
->propq
);
345 ctx
->ssl_digest_methods
[i
] = md
;
347 ctx
->disabled_mac_mask
|= t
->mask
;
349 int tmpsize
= EVP_MD_get_size(md
);
350 if (!ossl_assert(tmpsize
>= 0))
352 ctx
->ssl_mac_secret_size
[i
] = tmpsize
;
356 ctx
->disabled_mkey_mask
= 0;
357 ctx
->disabled_auth_mask
= 0;
360 * We ignore any errors from the fetches below. They are expected to fail
361 * if these algorithms are not available.
364 sig
= EVP_SIGNATURE_fetch(ctx
->libctx
, "DSA", ctx
->propq
);
366 ctx
->disabled_auth_mask
|= SSL_aDSS
;
368 EVP_SIGNATURE_free(sig
);
369 kex
= EVP_KEYEXCH_fetch(ctx
->libctx
, "DH", ctx
->propq
);
371 ctx
->disabled_mkey_mask
|= SSL_kDHE
| SSL_kDHEPSK
;
373 EVP_KEYEXCH_free(kex
);
374 kex
= EVP_KEYEXCH_fetch(ctx
->libctx
, "ECDH", ctx
->propq
);
376 ctx
->disabled_mkey_mask
|= SSL_kECDHE
| SSL_kECDHEPSK
;
378 EVP_KEYEXCH_free(kex
);
379 sig
= EVP_SIGNATURE_fetch(ctx
->libctx
, "ECDSA", ctx
->propq
);
381 ctx
->disabled_auth_mask
|= SSL_aECDSA
;
383 EVP_SIGNATURE_free(sig
);
386 #ifdef OPENSSL_NO_PSK
387 ctx
->disabled_mkey_mask
|= SSL_PSK
;
388 ctx
->disabled_auth_mask
|= SSL_aPSK
;
390 #ifdef OPENSSL_NO_SRP
391 ctx
->disabled_mkey_mask
|= SSL_kSRP
;
395 * Check for presence of GOST 34.10 algorithms, and if they are not
396 * present, disable appropriate auth and key exchange
398 memcpy(ctx
->ssl_mac_pkey_id
, default_mac_pkey_id
,
399 sizeof(ctx
->ssl_mac_pkey_id
));
401 ctx
->ssl_mac_pkey_id
[SSL_MD_GOST89MAC_IDX
] =
402 get_optional_pkey_id(SN_id_Gost28147_89_MAC
);
403 if (ctx
->ssl_mac_pkey_id
[SSL_MD_GOST89MAC_IDX
])
404 ctx
->ssl_mac_secret_size
[SSL_MD_GOST89MAC_IDX
] = 32;
406 ctx
->disabled_mac_mask
|= SSL_GOST89MAC
;
408 ctx
->ssl_mac_pkey_id
[SSL_MD_GOST89MAC12_IDX
] =
409 get_optional_pkey_id(SN_gost_mac_12
);
410 if (ctx
->ssl_mac_pkey_id
[SSL_MD_GOST89MAC12_IDX
])
411 ctx
->ssl_mac_secret_size
[SSL_MD_GOST89MAC12_IDX
] = 32;
413 ctx
->disabled_mac_mask
|= SSL_GOST89MAC12
;
415 ctx
->ssl_mac_pkey_id
[SSL_MD_MAGMAOMAC_IDX
] =
416 get_optional_pkey_id(SN_magma_mac
);
417 if (ctx
->ssl_mac_pkey_id
[SSL_MD_MAGMAOMAC_IDX
])
418 ctx
->ssl_mac_secret_size
[SSL_MD_MAGMAOMAC_IDX
] = 32;
420 ctx
->disabled_mac_mask
|= SSL_MAGMAOMAC
;
422 ctx
->ssl_mac_pkey_id
[SSL_MD_KUZNYECHIKOMAC_IDX
] =
423 get_optional_pkey_id(SN_kuznyechik_mac
);
424 if (ctx
->ssl_mac_pkey_id
[SSL_MD_KUZNYECHIKOMAC_IDX
])
425 ctx
->ssl_mac_secret_size
[SSL_MD_KUZNYECHIKOMAC_IDX
] = 32;
427 ctx
->disabled_mac_mask
|= SSL_KUZNYECHIKOMAC
;
429 if (!get_optional_pkey_id(SN_id_GostR3410_2001
))
430 ctx
->disabled_auth_mask
|= SSL_aGOST01
| SSL_aGOST12
;
431 if (!get_optional_pkey_id(SN_id_GostR3410_2012_256
))
432 ctx
->disabled_auth_mask
|= SSL_aGOST12
;
433 if (!get_optional_pkey_id(SN_id_GostR3410_2012_512
))
434 ctx
->disabled_auth_mask
|= SSL_aGOST12
;
436 * Disable GOST key exchange if no GOST signature algs are available *
438 if ((ctx
->disabled_auth_mask
& (SSL_aGOST01
| SSL_aGOST12
)) ==
439 (SSL_aGOST01
| SSL_aGOST12
))
440 ctx
->disabled_mkey_mask
|= SSL_kGOST
;
442 if ((ctx
->disabled_auth_mask
& SSL_aGOST12
) == SSL_aGOST12
)
443 ctx
->disabled_mkey_mask
|= SSL_kGOST18
;
448 #ifndef OPENSSL_NO_COMP
450 static int sk_comp_cmp(const SSL_COMP
*const *a
, const SSL_COMP
*const *b
)
452 return ((*a
)->id
- (*b
)->id
);
455 DEFINE_RUN_ONCE_STATIC(do_load_builtin_compressions
)
457 SSL_COMP
*comp
= NULL
;
458 COMP_METHOD
*method
= COMP_zlib();
460 ssl_comp_methods
= sk_SSL_COMP_new(sk_comp_cmp
);
462 if (COMP_get_type(method
) != NID_undef
&& ssl_comp_methods
!= NULL
) {
463 comp
= OPENSSL_malloc(sizeof(*comp
));
465 comp
->method
= method
;
466 comp
->id
= SSL_COMP_ZLIB_IDX
;
467 comp
->name
= COMP_get_name(method
);
468 if (!sk_SSL_COMP_push(ssl_comp_methods
, comp
))
470 sk_SSL_COMP_sort(ssl_comp_methods
);
476 static int load_builtin_compressions(void)
478 return RUN_ONCE(&ssl_load_builtin_comp_once
, do_load_builtin_compressions
);
482 int ssl_cipher_get_evp_cipher(SSL_CTX
*ctx
, const SSL_CIPHER
*sslc
,
483 const EVP_CIPHER
**enc
)
485 int i
= ssl_cipher_info_lookup(ssl_cipher_table_cipher
, sslc
->algorithm_enc
);
490 if (i
== SSL_ENC_NULL_IDX
) {
492 * We assume we don't care about this coming from an ENGINE so
493 * just do a normal EVP_CIPHER_fetch instead of
494 * ssl_evp_cipher_fetch()
496 *enc
= EVP_CIPHER_fetch(ctx
->libctx
, "NULL", ctx
->propq
);
500 const EVP_CIPHER
*cipher
= ctx
->ssl_cipher_methods
[i
];
503 || !ssl_evp_cipher_up_ref(cipher
))
505 *enc
= ctx
->ssl_cipher_methods
[i
];
511 int ssl_cipher_get_evp(SSL_CTX
*ctx
, const SSL_SESSION
*s
,
512 const EVP_CIPHER
**enc
, const EVP_MD
**md
,
513 int *mac_pkey_type
, size_t *mac_secret_size
,
514 SSL_COMP
**comp
, int use_etm
)
524 #ifndef OPENSSL_NO_COMP
525 if (!load_builtin_compressions()) {
527 * Currently don't care, since a failure only means that
528 * ssl_comp_methods is NULL, which is perfectly OK
533 ctmp
.id
= s
->compress_meth
;
534 if (ssl_comp_methods
!= NULL
) {
535 i
= sk_SSL_COMP_find(ssl_comp_methods
, &ctmp
);
537 *comp
= sk_SSL_COMP_value(ssl_comp_methods
, i
);
539 /* If were only interested in comp then return success */
540 if ((enc
== NULL
) && (md
== NULL
))
544 if ((enc
== NULL
) || (md
== NULL
))
547 if (!ssl_cipher_get_evp_cipher(ctx
, c
, enc
))
550 i
= ssl_cipher_info_lookup(ssl_cipher_table_mac
, c
->algorithm_mac
);
553 if (mac_pkey_type
!= NULL
)
554 *mac_pkey_type
= NID_undef
;
555 if (mac_secret_size
!= NULL
)
556 *mac_secret_size
= 0;
557 if (c
->algorithm_mac
== SSL_AEAD
)
558 mac_pkey_type
= NULL
;
560 const EVP_MD
*digest
= ctx
->ssl_digest_methods
[i
];
563 || !ssl_evp_md_up_ref(digest
)) {
564 ssl_evp_cipher_free(*enc
);
568 if (mac_pkey_type
!= NULL
)
569 *mac_pkey_type
= ctx
->ssl_mac_pkey_id
[i
];
570 if (mac_secret_size
!= NULL
)
571 *mac_secret_size
= ctx
->ssl_mac_secret_size
[i
];
576 || (EVP_CIPHER_get_flags(*enc
) & EVP_CIPH_FLAG_AEAD_CIPHER
))
577 && (!mac_pkey_type
|| *mac_pkey_type
!= NID_undef
)) {
578 const EVP_CIPHER
*evp
= NULL
;
581 || s
->ssl_version
>> 8 != TLS1_VERSION_MAJOR
582 || s
->ssl_version
< TLS1_VERSION
)
585 if (c
->algorithm_enc
== SSL_RC4
586 && c
->algorithm_mac
== SSL_MD5
)
587 evp
= ssl_evp_cipher_fetch(ctx
->libctx
, NID_rc4_hmac_md5
,
589 else if (c
->algorithm_enc
== SSL_AES128
590 && c
->algorithm_mac
== SSL_SHA1
)
591 evp
= ssl_evp_cipher_fetch(ctx
->libctx
,
592 NID_aes_128_cbc_hmac_sha1
,
594 else if (c
->algorithm_enc
== SSL_AES256
595 && c
->algorithm_mac
== SSL_SHA1
)
596 evp
= ssl_evp_cipher_fetch(ctx
->libctx
,
597 NID_aes_256_cbc_hmac_sha1
,
599 else if (c
->algorithm_enc
== SSL_AES128
600 && c
->algorithm_mac
== SSL_SHA256
)
601 evp
= ssl_evp_cipher_fetch(ctx
->libctx
,
602 NID_aes_128_cbc_hmac_sha256
,
604 else if (c
->algorithm_enc
== SSL_AES256
605 && c
->algorithm_mac
== SSL_SHA256
)
606 evp
= ssl_evp_cipher_fetch(ctx
->libctx
,
607 NID_aes_256_cbc_hmac_sha256
,
611 ssl_evp_cipher_free(*enc
);
612 ssl_evp_md_free(*md
);
622 const EVP_MD
*ssl_md(SSL_CTX
*ctx
, int idx
)
624 idx
&= SSL_HANDSHAKE_MAC_MASK
;
625 if (idx
< 0 || idx
>= SSL_MD_NUM_IDX
)
627 return ctx
->ssl_digest_methods
[idx
];
630 const EVP_MD
*ssl_handshake_md(SSL_CONNECTION
*s
)
632 return ssl_md(SSL_CONNECTION_GET_CTX(s
), ssl_get_algorithm2(s
));
635 const EVP_MD
*ssl_prf_md(SSL_CONNECTION
*s
)
637 return ssl_md(SSL_CONNECTION_GET_CTX(s
),
638 ssl_get_algorithm2(s
) >> TLS1_PRF_DGST_SHIFT
);
641 #define ITEM_SEP(a) \
642 (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
644 static void ll_append_tail(CIPHER_ORDER
**head
, CIPHER_ORDER
*curr
,
651 if (curr
->prev
!= NULL
)
652 curr
->prev
->next
= curr
->next
;
653 if (curr
->next
!= NULL
)
654 curr
->next
->prev
= curr
->prev
;
655 (*tail
)->next
= curr
;
661 static void ll_append_head(CIPHER_ORDER
**head
, CIPHER_ORDER
*curr
,
668 if (curr
->next
!= NULL
)
669 curr
->next
->prev
= curr
->prev
;
670 if (curr
->prev
!= NULL
)
671 curr
->prev
->next
= curr
->next
;
672 (*head
)->prev
= curr
;
678 static void ssl_cipher_collect_ciphers(const SSL_METHOD
*ssl_method
,
680 uint32_t disabled_mkey
,
681 uint32_t disabled_auth
,
682 uint32_t disabled_enc
,
683 uint32_t disabled_mac
,
684 CIPHER_ORDER
*co_list
,
685 CIPHER_ORDER
**head_p
,
686 CIPHER_ORDER
**tail_p
)
692 * We have num_of_ciphers descriptions compiled in, depending on the
693 * method selected (SSLv3, TLSv1 etc).
694 * These will later be sorted in a linked list with at most num
698 /* Get the initial list of ciphers */
699 co_list_num
= 0; /* actual count of ciphers */
700 for (i
= 0; i
< num_of_ciphers
; i
++) {
701 c
= ssl_method
->get_cipher(i
);
702 /* drop those that use any of that is not available */
703 if (c
== NULL
|| !c
->valid
)
705 if ((c
->algorithm_mkey
& disabled_mkey
) ||
706 (c
->algorithm_auth
& disabled_auth
) ||
707 (c
->algorithm_enc
& disabled_enc
) ||
708 (c
->algorithm_mac
& disabled_mac
))
710 if (((ssl_method
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
) == 0) &&
713 if (((ssl_method
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
) != 0) &&
717 co_list
[co_list_num
].cipher
= c
;
718 co_list
[co_list_num
].next
= NULL
;
719 co_list
[co_list_num
].prev
= NULL
;
720 co_list
[co_list_num
].active
= 0;
725 * Prepare linked list from list entries
727 if (co_list_num
> 0) {
728 co_list
[0].prev
= NULL
;
730 if (co_list_num
> 1) {
731 co_list
[0].next
= &co_list
[1];
733 for (i
= 1; i
< co_list_num
- 1; i
++) {
734 co_list
[i
].prev
= &co_list
[i
- 1];
735 co_list
[i
].next
= &co_list
[i
+ 1];
738 co_list
[co_list_num
- 1].prev
= &co_list
[co_list_num
- 2];
741 co_list
[co_list_num
- 1].next
= NULL
;
743 *head_p
= &co_list
[0];
744 *tail_p
= &co_list
[co_list_num
- 1];
748 static void ssl_cipher_collect_aliases(const SSL_CIPHER
**ca_list
,
749 int num_of_group_aliases
,
750 uint32_t disabled_mkey
,
751 uint32_t disabled_auth
,
752 uint32_t disabled_enc
,
753 uint32_t disabled_mac
,
756 CIPHER_ORDER
*ciph_curr
;
757 const SSL_CIPHER
**ca_curr
;
759 uint32_t mask_mkey
= ~disabled_mkey
;
760 uint32_t mask_auth
= ~disabled_auth
;
761 uint32_t mask_enc
= ~disabled_enc
;
762 uint32_t mask_mac
= ~disabled_mac
;
765 * First, add the real ciphers as already collected
769 while (ciph_curr
!= NULL
) {
770 *ca_curr
= ciph_curr
->cipher
;
772 ciph_curr
= ciph_curr
->next
;
776 * Now we add the available ones from the cipher_aliases[] table.
777 * They represent either one or more algorithms, some of which
778 * in any affected category must be supported (set in enabled_mask),
779 * or represent a cipher strength value (will be added in any case because algorithms=0).
781 for (i
= 0; i
< num_of_group_aliases
; i
++) {
782 uint32_t algorithm_mkey
= cipher_aliases
[i
].algorithm_mkey
;
783 uint32_t algorithm_auth
= cipher_aliases
[i
].algorithm_auth
;
784 uint32_t algorithm_enc
= cipher_aliases
[i
].algorithm_enc
;
785 uint32_t algorithm_mac
= cipher_aliases
[i
].algorithm_mac
;
788 if ((algorithm_mkey
& mask_mkey
) == 0)
792 if ((algorithm_auth
& mask_auth
) == 0)
796 if ((algorithm_enc
& mask_enc
) == 0)
800 if ((algorithm_mac
& mask_mac
) == 0)
803 *ca_curr
= (SSL_CIPHER
*)(cipher_aliases
+ i
);
807 *ca_curr
= NULL
; /* end of list */
810 static void ssl_cipher_apply_rule(uint32_t cipher_id
, uint32_t alg_mkey
,
811 uint32_t alg_auth
, uint32_t alg_enc
,
812 uint32_t alg_mac
, int min_tls
,
813 uint32_t algo_strength
, int rule
,
814 int32_t strength_bits
, CIPHER_ORDER
**head_p
,
815 CIPHER_ORDER
**tail_p
)
817 CIPHER_ORDER
*head
, *tail
, *curr
, *next
, *last
;
818 const SSL_CIPHER
*cp
;
821 OSSL_TRACE_BEGIN(TLS_CIPHER
) {
823 "Applying rule %d with %08x/%08x/%08x/%08x/%08x %08x (%d)\n",
824 rule
, (unsigned int)alg_mkey
, (unsigned int)alg_auth
,
825 (unsigned int)alg_enc
, (unsigned int)alg_mac
, min_tls
,
826 (unsigned int)algo_strength
, (int)strength_bits
);
829 if (rule
== CIPHER_DEL
|| rule
== CIPHER_BUMP
)
830 reverse
= 1; /* needed to maintain sorting between currently
854 next
= reverse
? curr
->prev
: curr
->next
;
859 * Selection criteria is either the value of strength_bits
860 * or the algorithms used.
862 if (strength_bits
>= 0) {
863 if (strength_bits
!= cp
->strength_bits
)
866 if (trc_out
!= NULL
) {
869 "\nAlgo = %08x/%08x/%08x/%08x/%08x Algo_strength = %08x\n",
871 (unsigned int)cp
->algorithm_mkey
,
872 (unsigned int)cp
->algorithm_auth
,
873 (unsigned int)cp
->algorithm_enc
,
874 (unsigned int)cp
->algorithm_mac
,
876 (unsigned int)cp
->algo_strength
);
878 if (cipher_id
!= 0 && (cipher_id
!= cp
->id
))
880 if (alg_mkey
&& !(alg_mkey
& cp
->algorithm_mkey
))
882 if (alg_auth
&& !(alg_auth
& cp
->algorithm_auth
))
884 if (alg_enc
&& !(alg_enc
& cp
->algorithm_enc
))
886 if (alg_mac
&& !(alg_mac
& cp
->algorithm_mac
))
888 if (min_tls
&& (min_tls
!= cp
->min_tls
))
890 if ((algo_strength
& SSL_STRONG_MASK
)
891 && !(algo_strength
& SSL_STRONG_MASK
& cp
->algo_strength
))
893 if ((algo_strength
& SSL_DEFAULT_MASK
)
894 && !(algo_strength
& SSL_DEFAULT_MASK
& cp
->algo_strength
))
899 BIO_printf(trc_out
, "Action = %d\n", rule
);
901 /* add the cipher if it has not been added yet. */
902 if (rule
== CIPHER_ADD
) {
905 ll_append_tail(&head
, curr
, &tail
);
909 /* Move the added cipher to this location */
910 else if (rule
== CIPHER_ORD
) {
913 ll_append_tail(&head
, curr
, &tail
);
915 } else if (rule
== CIPHER_DEL
) {
919 * most recently deleted ciphersuites get best positions for
920 * any future CIPHER_ADD (note that the CIPHER_DEL loop works
921 * in reverse to maintain the order)
923 ll_append_head(&head
, curr
, &tail
);
926 } else if (rule
== CIPHER_BUMP
) {
928 ll_append_head(&head
, curr
, &tail
);
929 } else if (rule
== CIPHER_KILL
) {
934 curr
->prev
->next
= curr
->next
;
938 if (curr
->next
!= NULL
)
939 curr
->next
->prev
= curr
->prev
;
940 if (curr
->prev
!= NULL
)
941 curr
->prev
->next
= curr
->next
;
950 OSSL_TRACE_END(TLS_CIPHER
);
953 static int ssl_cipher_strength_sort(CIPHER_ORDER
**head_p
,
954 CIPHER_ORDER
**tail_p
)
956 int32_t max_strength_bits
;
961 * This routine sorts the ciphers with descending strength. The sorting
962 * must keep the pre-sorted sequence, so we apply the normal sorting
963 * routine as '+' movement to the end of the list.
965 max_strength_bits
= 0;
967 while (curr
!= NULL
) {
968 if (curr
->active
&& (curr
->cipher
->strength_bits
> max_strength_bits
))
969 max_strength_bits
= curr
->cipher
->strength_bits
;
973 number_uses
= OPENSSL_zalloc(sizeof(int) * (max_strength_bits
+ 1));
974 if (number_uses
== NULL
)
978 * Now find the strength_bits values actually used
981 while (curr
!= NULL
) {
983 number_uses
[curr
->cipher
->strength_bits
]++;
987 * Go through the list of used strength_bits values in descending
990 for (i
= max_strength_bits
; i
>= 0; i
--)
991 if (number_uses
[i
] > 0)
992 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD
, i
, head_p
,
995 OPENSSL_free(number_uses
);
999 static int ssl_cipher_process_rulestr(const char *rule_str
,
1000 CIPHER_ORDER
**head_p
,
1001 CIPHER_ORDER
**tail_p
,
1002 const SSL_CIPHER
**ca_list
, CERT
*c
)
1004 uint32_t alg_mkey
, alg_auth
, alg_enc
, alg_mac
, algo_strength
;
1006 const char *l
, *buf
;
1007 int j
, multi
, found
, rule
, retval
, ok
, buflen
;
1008 uint32_t cipher_id
= 0;
1021 } else if (ch
== '+') {
1024 } else if (ch
== '!') {
1027 } else if (ch
== '@') {
1028 rule
= CIPHER_SPECIAL
;
1050 #ifndef CHARSET_EBCDIC
1051 while (((ch
>= 'A') && (ch
<= 'Z')) ||
1052 ((ch
>= '0') && (ch
<= '9')) ||
1053 ((ch
>= 'a') && (ch
<= 'z')) ||
1054 (ch
== '-') || (ch
== '_') || (ch
== '.') || (ch
== '='))
1056 while (isalnum((unsigned char)ch
) || (ch
== '-') || (ch
== '_') || (ch
== '.')
1066 * We hit something we cannot deal with,
1067 * it is no command or separator nor
1068 * alphanumeric, so we call this an error.
1070 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_COMMAND
);
1074 if (rule
== CIPHER_SPECIAL
) {
1075 found
= 0; /* unused -- avoid compiler warning */
1076 break; /* special treatment */
1079 /* check for multi-part specification */
1088 * Now search for the cipher alias in the ca_list. Be careful
1089 * with the strncmp, because the "buflen" limitation
1090 * will make the rule "ADH:SOME" and the cipher
1091 * "ADH-MY-CIPHER" look like a match for buflen=3.
1092 * So additionally check whether the cipher name found
1093 * has the correct length. We can save a strlen() call:
1094 * just checking for the '\0' at the right place is
1095 * sufficient, we have to strncmp() anyway. (We cannot
1096 * use strcmp(), because buf is not '\0' terminated.)
1100 while (ca_list
[j
]) {
1101 if (strncmp(buf
, ca_list
[j
]->name
, buflen
) == 0
1102 && (ca_list
[j
]->name
[buflen
] == '\0')) {
1105 } else if (ca_list
[j
]->stdname
!= NULL
1106 && strncmp(buf
, ca_list
[j
]->stdname
, buflen
) == 0
1107 && ca_list
[j
]->stdname
[buflen
] == '\0') {
1115 break; /* ignore this entry */
1117 if (ca_list
[j
]->algorithm_mkey
) {
1119 alg_mkey
&= ca_list
[j
]->algorithm_mkey
;
1125 alg_mkey
= ca_list
[j
]->algorithm_mkey
;
1129 if (ca_list
[j
]->algorithm_auth
) {
1131 alg_auth
&= ca_list
[j
]->algorithm_auth
;
1137 alg_auth
= ca_list
[j
]->algorithm_auth
;
1141 if (ca_list
[j
]->algorithm_enc
) {
1143 alg_enc
&= ca_list
[j
]->algorithm_enc
;
1149 alg_enc
= ca_list
[j
]->algorithm_enc
;
1153 if (ca_list
[j
]->algorithm_mac
) {
1155 alg_mac
&= ca_list
[j
]->algorithm_mac
;
1161 alg_mac
= ca_list
[j
]->algorithm_mac
;
1165 if (ca_list
[j
]->algo_strength
& SSL_STRONG_MASK
) {
1166 if (algo_strength
& SSL_STRONG_MASK
) {
1168 (ca_list
[j
]->algo_strength
& SSL_STRONG_MASK
) |
1170 if (!(algo_strength
& SSL_STRONG_MASK
)) {
1175 algo_strength
= ca_list
[j
]->algo_strength
& SSL_STRONG_MASK
;
1179 if (ca_list
[j
]->algo_strength
& SSL_DEFAULT_MASK
) {
1180 if (algo_strength
& SSL_DEFAULT_MASK
) {
1182 (ca_list
[j
]->algo_strength
& SSL_DEFAULT_MASK
) |
1184 if (!(algo_strength
& SSL_DEFAULT_MASK
)) {
1190 ca_list
[j
]->algo_strength
& SSL_DEFAULT_MASK
;
1194 if (ca_list
[j
]->valid
) {
1196 * explicit ciphersuite found; its protocol version does not
1197 * become part of the search pattern!
1200 cipher_id
= ca_list
[j
]->id
;
1203 * not an explicit ciphersuite; only in this case, the
1204 * protocol version is considered part of the search pattern
1207 if (ca_list
[j
]->min_tls
) {
1208 if (min_tls
!= 0 && min_tls
!= ca_list
[j
]->min_tls
) {
1212 min_tls
= ca_list
[j
]->min_tls
;
1222 * Ok, we have the rule, now apply it
1224 if (rule
== CIPHER_SPECIAL
) { /* special command */
1226 if ((buflen
== 8) && HAS_PREFIX(buf
, "STRENGTH")) {
1227 ok
= ssl_cipher_strength_sort(head_p
, tail_p
);
1228 } else if (buflen
== 10 && CHECK_AND_SKIP_PREFIX(buf
, "SECLEVEL=")) {
1229 int level
= *buf
- '0';
1230 if (level
< 0 || level
> 5) {
1231 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_COMMAND
);
1233 c
->sec_level
= level
;
1237 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_COMMAND
);
1242 * We do not support any "multi" options
1243 * together with "@", so throw away the
1244 * rest of the command, if any left, until
1245 * end or ':' is found.
1247 while ((*l
!= '\0') && !ITEM_SEP(*l
))
1250 ssl_cipher_apply_rule(cipher_id
,
1251 alg_mkey
, alg_auth
, alg_enc
, alg_mac
,
1252 min_tls
, algo_strength
, rule
, -1, head_p
,
1255 while ((*l
!= '\0') && !ITEM_SEP(*l
))
1265 static int check_suiteb_cipher_list(const SSL_METHOD
*meth
, CERT
*c
,
1266 const char **prule_str
)
1268 unsigned int suiteb_flags
= 0, suiteb_comb2
= 0;
1269 if (HAS_PREFIX(*prule_str
, "SUITEB128ONLY")) {
1270 suiteb_flags
= SSL_CERT_FLAG_SUITEB_128_LOS_ONLY
;
1271 } else if (HAS_PREFIX(*prule_str
, "SUITEB128C2")) {
1273 suiteb_flags
= SSL_CERT_FLAG_SUITEB_128_LOS
;
1274 } else if (HAS_PREFIX(*prule_str
, "SUITEB128")) {
1275 suiteb_flags
= SSL_CERT_FLAG_SUITEB_128_LOS
;
1276 } else if (HAS_PREFIX(*prule_str
, "SUITEB192")) {
1277 suiteb_flags
= SSL_CERT_FLAG_SUITEB_192_LOS
;
1281 c
->cert_flags
&= ~SSL_CERT_FLAG_SUITEB_128_LOS
;
1282 c
->cert_flags
|= suiteb_flags
;
1284 suiteb_flags
= c
->cert_flags
& SSL_CERT_FLAG_SUITEB_128_LOS
;
1289 /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */
1291 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_TLS1_2_CIPHERS
)) {
1292 ERR_raise(ERR_LIB_SSL
, SSL_R_AT_LEAST_TLS_1_2_NEEDED_IN_SUITEB_MODE
);
1296 switch (suiteb_flags
) {
1297 case SSL_CERT_FLAG_SUITEB_128_LOS
:
1299 *prule_str
= "ECDHE-ECDSA-AES256-GCM-SHA384";
1302 "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384";
1304 case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY
:
1305 *prule_str
= "ECDHE-ECDSA-AES128-GCM-SHA256";
1307 case SSL_CERT_FLAG_SUITEB_192_LOS
:
1308 *prule_str
= "ECDHE-ECDSA-AES256-GCM-SHA384";
1314 static int ciphersuite_cb(const char *elem
, int len
, void *arg
)
1316 STACK_OF(SSL_CIPHER
) *ciphersuites
= (STACK_OF(SSL_CIPHER
) *)arg
;
1317 const SSL_CIPHER
*cipher
;
1318 /* Arbitrary sized temp buffer for the cipher name. Should be big enough */
1321 if (len
> (int)(sizeof(name
) - 1))
1322 /* Anyway return 1 so we can parse rest of the list */
1325 memcpy(name
, elem
, len
);
1328 cipher
= ssl3_get_cipher_by_std_name(name
);
1330 /* Ciphersuite not found but return 1 to parse rest of the list */
1333 if (!sk_SSL_CIPHER_push(ciphersuites
, cipher
)) {
1334 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
1341 static __owur
int set_ciphersuites(STACK_OF(SSL_CIPHER
) **currciphers
, const char *str
)
1343 STACK_OF(SSL_CIPHER
) *newciphers
= sk_SSL_CIPHER_new_null();
1345 if (newciphers
== NULL
)
1348 /* Parse the list. We explicitly allow an empty list */
1350 && (CONF_parse_list(str
, ':', 1, ciphersuite_cb
, newciphers
) <= 0
1351 || sk_SSL_CIPHER_num(newciphers
) == 0)) {
1352 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHER_MATCH
);
1353 sk_SSL_CIPHER_free(newciphers
);
1356 sk_SSL_CIPHER_free(*currciphers
);
1357 *currciphers
= newciphers
;
1362 static int update_cipher_list_by_id(STACK_OF(SSL_CIPHER
) **cipher_list_by_id
,
1363 STACK_OF(SSL_CIPHER
) *cipherstack
)
1365 STACK_OF(SSL_CIPHER
) *tmp_cipher_list
= sk_SSL_CIPHER_dup(cipherstack
);
1367 if (tmp_cipher_list
== NULL
) {
1371 sk_SSL_CIPHER_free(*cipher_list_by_id
);
1372 *cipher_list_by_id
= tmp_cipher_list
;
1374 (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id
, ssl_cipher_ptr_id_cmp
);
1375 sk_SSL_CIPHER_sort(*cipher_list_by_id
);
1380 static int update_cipher_list(SSL_CTX
*ctx
,
1381 STACK_OF(SSL_CIPHER
) **cipher_list
,
1382 STACK_OF(SSL_CIPHER
) **cipher_list_by_id
,
1383 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
)
1386 STACK_OF(SSL_CIPHER
) *tmp_cipher_list
= sk_SSL_CIPHER_dup(*cipher_list
);
1388 if (tmp_cipher_list
== NULL
)
1392 * Delete any existing TLSv1.3 ciphersuites. These are always first in the
1395 while (sk_SSL_CIPHER_num(tmp_cipher_list
) > 0
1396 && sk_SSL_CIPHER_value(tmp_cipher_list
, 0)->min_tls
1398 (void)sk_SSL_CIPHER_delete(tmp_cipher_list
, 0);
1400 /* Insert the new TLSv1.3 ciphersuites */
1401 for (i
= sk_SSL_CIPHER_num(tls13_ciphersuites
) - 1; i
>= 0; i
--) {
1402 const SSL_CIPHER
*sslc
= sk_SSL_CIPHER_value(tls13_ciphersuites
, i
);
1404 /* Don't include any TLSv1.3 ciphersuites that are disabled */
1405 if ((sslc
->algorithm_enc
& ctx
->disabled_enc_mask
) == 0
1406 && (ssl_cipher_table_mac
[sslc
->algorithm2
1407 & SSL_HANDSHAKE_MAC_MASK
].mask
1408 & ctx
->disabled_mac_mask
) == 0) {
1409 sk_SSL_CIPHER_unshift(tmp_cipher_list
, sslc
);
1413 if (!update_cipher_list_by_id(cipher_list_by_id
, tmp_cipher_list
)) {
1414 sk_SSL_CIPHER_free(tmp_cipher_list
);
1418 sk_SSL_CIPHER_free(*cipher_list
);
1419 *cipher_list
= tmp_cipher_list
;
1424 int SSL_CTX_set_ciphersuites(SSL_CTX
*ctx
, const char *str
)
1426 int ret
= set_ciphersuites(&(ctx
->tls13_ciphersuites
), str
);
1428 if (ret
&& ctx
->cipher_list
!= NULL
)
1429 return update_cipher_list(ctx
, &ctx
->cipher_list
, &ctx
->cipher_list_by_id
,
1430 ctx
->tls13_ciphersuites
);
1435 int SSL_set_ciphersuites(SSL
*s
, const char *str
)
1437 STACK_OF(SSL_CIPHER
) *cipher_list
;
1438 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1444 ret
= set_ciphersuites(&(sc
->tls13_ciphersuites
), str
);
1446 if (sc
->cipher_list
== NULL
) {
1447 if ((cipher_list
= SSL_get_ciphers(s
)) != NULL
)
1448 sc
->cipher_list
= sk_SSL_CIPHER_dup(cipher_list
);
1450 if (ret
&& sc
->cipher_list
!= NULL
)
1451 return update_cipher_list(s
->ctx
, &sc
->cipher_list
,
1452 &sc
->cipher_list_by_id
,
1453 sc
->tls13_ciphersuites
);
1458 STACK_OF(SSL_CIPHER
) *ssl_create_cipher_list(SSL_CTX
*ctx
,
1459 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
,
1460 STACK_OF(SSL_CIPHER
) **cipher_list
,
1461 STACK_OF(SSL_CIPHER
) **cipher_list_by_id
,
1462 const char *rule_str
,
1465 int ok
, num_of_ciphers
, num_of_alias_max
, num_of_group_aliases
, i
;
1466 uint32_t disabled_mkey
, disabled_auth
, disabled_enc
, disabled_mac
;
1467 STACK_OF(SSL_CIPHER
) *cipherstack
;
1469 CIPHER_ORDER
*co_list
= NULL
, *head
= NULL
, *tail
= NULL
, *curr
;
1470 const SSL_CIPHER
**ca_list
= NULL
;
1471 const SSL_METHOD
*ssl_method
= ctx
->method
;
1474 * Return with error if nothing to do.
1476 if (rule_str
== NULL
|| cipher_list
== NULL
|| cipher_list_by_id
== NULL
)
1479 if (!check_suiteb_cipher_list(ssl_method
, c
, &rule_str
))
1483 * To reduce the work to do we only want to process the compiled
1484 * in algorithms, so we first get the mask of disabled ciphers.
1487 disabled_mkey
= ctx
->disabled_mkey_mask
;
1488 disabled_auth
= ctx
->disabled_auth_mask
;
1489 disabled_enc
= ctx
->disabled_enc_mask
;
1490 disabled_mac
= ctx
->disabled_mac_mask
;
1493 * Now we have to collect the available ciphers from the compiled
1494 * in ciphers. We cannot get more than the number compiled in, so
1495 * it is used for allocation.
1497 num_of_ciphers
= ssl_method
->num_ciphers();
1499 if (num_of_ciphers
> 0) {
1500 co_list
= OPENSSL_malloc(sizeof(*co_list
) * num_of_ciphers
);
1501 if (co_list
== NULL
)
1502 return NULL
; /* Failure */
1505 ssl_cipher_collect_ciphers(ssl_method
, num_of_ciphers
,
1506 disabled_mkey
, disabled_auth
, disabled_enc
,
1507 disabled_mac
, co_list
, &head
, &tail
);
1509 /* Now arrange all ciphers by preference. */
1512 * Everything else being equal, prefer ephemeral ECDH over other key
1513 * exchange mechanisms.
1514 * For consistency, prefer ECDSA over RSA (though this only matters if the
1515 * server has both certificates, and is using the DEFAULT, or a client
1518 ssl_cipher_apply_rule(0, SSL_kECDHE
, SSL_aECDSA
, 0, 0, 0, 0, CIPHER_ADD
,
1520 ssl_cipher_apply_rule(0, SSL_kECDHE
, 0, 0, 0, 0, 0, CIPHER_ADD
, -1, &head
,
1522 ssl_cipher_apply_rule(0, SSL_kECDHE
, 0, 0, 0, 0, 0, CIPHER_DEL
, -1, &head
,
1525 /* Within each strength group, we prefer GCM over CHACHA... */
1526 ssl_cipher_apply_rule(0, 0, 0, SSL_AESGCM
, 0, 0, 0, CIPHER_ADD
, -1,
1528 ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20
, 0, 0, 0, CIPHER_ADD
, -1,
1532 * ...and generally, our preferred cipher is AES.
1533 * Note that AEADs will be bumped to take preference after sorting by
1536 ssl_cipher_apply_rule(0, 0, 0, SSL_AES
^ SSL_AESGCM
, 0, 0, 0, CIPHER_ADD
,
1539 /* Temporarily enable everything else for sorting */
1540 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD
, -1, &head
, &tail
);
1542 /* Low priority for MD5 */
1543 ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5
, 0, 0, CIPHER_ORD
, -1, &head
,
1547 * Move anonymous ciphers to the end. Usually, these will remain
1548 * disabled. (For applications that allow them, they aren't too bad, but
1549 * we prefer authenticated ciphers.)
1551 ssl_cipher_apply_rule(0, 0, SSL_aNULL
, 0, 0, 0, 0, CIPHER_ORD
, -1, &head
,
1554 ssl_cipher_apply_rule(0, SSL_kRSA
, 0, 0, 0, 0, 0, CIPHER_ORD
, -1, &head
,
1556 ssl_cipher_apply_rule(0, SSL_kPSK
, 0, 0, 0, 0, 0, CIPHER_ORD
, -1, &head
,
1559 /* RC4 is sort-of broken -- move to the end */
1560 ssl_cipher_apply_rule(0, 0, 0, SSL_RC4
, 0, 0, 0, CIPHER_ORD
, -1, &head
,
1564 * Now sort by symmetric encryption strength. The above ordering remains
1565 * in force within each class
1567 if (!ssl_cipher_strength_sort(&head
, &tail
)) {
1568 OPENSSL_free(co_list
);
1573 * Partially overrule strength sort to prefer TLS 1.2 ciphers/PRFs.
1575 ssl_cipher_apply_rule(0, 0, 0, 0, 0, TLS1_2_VERSION
, 0, CIPHER_BUMP
, -1,
1579 * Irrespective of strength, enforce the following order:
1580 * (EC)DHE + AEAD > (EC)DHE > rest of AEAD > rest.
1581 * Within each group, ciphers remain sorted by strength and previous
1586 * 4) TLS 1.2 > legacy
1588 * Because we now bump ciphers to the top of the list, we proceed in
1589 * reverse order of preference.
1591 ssl_cipher_apply_rule(0, 0, 0, 0, SSL_AEAD
, 0, 0, CIPHER_BUMP
, -1,
1593 ssl_cipher_apply_rule(0, SSL_kDHE
| SSL_kECDHE
, 0, 0, 0, 0, 0,
1594 CIPHER_BUMP
, -1, &head
, &tail
);
1595 ssl_cipher_apply_rule(0, SSL_kDHE
| SSL_kECDHE
, 0, 0, SSL_AEAD
, 0, 0,
1596 CIPHER_BUMP
, -1, &head
, &tail
);
1598 /* Now disable everything (maintaining the ordering!) */
1599 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL
, -1, &head
, &tail
);
1602 * We also need cipher aliases for selecting based on the rule_str.
1603 * There might be two types of entries in the rule_str: 1) names
1604 * of ciphers themselves 2) aliases for groups of ciphers.
1605 * For 1) we need the available ciphers and for 2) the cipher
1606 * groups of cipher_aliases added together in one list (otherwise
1607 * we would be happy with just the cipher_aliases table).
1609 num_of_group_aliases
= OSSL_NELEM(cipher_aliases
);
1610 num_of_alias_max
= num_of_ciphers
+ num_of_group_aliases
+ 1;
1611 ca_list
= OPENSSL_malloc(sizeof(*ca_list
) * num_of_alias_max
);
1612 if (ca_list
== NULL
) {
1613 OPENSSL_free(co_list
);
1614 return NULL
; /* Failure */
1616 ssl_cipher_collect_aliases(ca_list
, num_of_group_aliases
,
1617 disabled_mkey
, disabled_auth
, disabled_enc
,
1618 disabled_mac
, head
);
1621 * If the rule_string begins with DEFAULT, apply the default rule
1622 * before using the (possibly available) additional rules.
1626 if (HAS_PREFIX(rule_str
, "DEFAULT")) {
1627 ok
= ssl_cipher_process_rulestr(OSSL_default_cipher_list(),
1628 &head
, &tail
, ca_list
, c
);
1634 if (ok
&& (rule_p
[0] != '\0'))
1635 ok
= ssl_cipher_process_rulestr(rule_p
, &head
, &tail
, ca_list
, c
);
1637 OPENSSL_free(ca_list
); /* Not needed anymore */
1639 if (!ok
) { /* Rule processing failure */
1640 OPENSSL_free(co_list
);
1645 * Allocate new "cipherstack" for the result, return with error
1646 * if we cannot get one.
1648 if ((cipherstack
= sk_SSL_CIPHER_new_null()) == NULL
) {
1649 OPENSSL_free(co_list
);
1653 /* Add TLSv1.3 ciphers first - we always prefer those if possible */
1654 for (i
= 0; i
< sk_SSL_CIPHER_num(tls13_ciphersuites
); i
++) {
1655 const SSL_CIPHER
*sslc
= sk_SSL_CIPHER_value(tls13_ciphersuites
, i
);
1657 /* Don't include any TLSv1.3 ciphers that are disabled */
1658 if ((sslc
->algorithm_enc
& disabled_enc
) != 0
1659 || (ssl_cipher_table_mac
[sslc
->algorithm2
1660 & SSL_HANDSHAKE_MAC_MASK
].mask
1661 & ctx
->disabled_mac_mask
) != 0) {
1662 sk_SSL_CIPHER_delete(tls13_ciphersuites
, i
);
1667 if (!sk_SSL_CIPHER_push(cipherstack
, sslc
)) {
1668 OPENSSL_free(co_list
);
1669 sk_SSL_CIPHER_free(cipherstack
);
1674 OSSL_TRACE_BEGIN(TLS_CIPHER
) {
1675 BIO_printf(trc_out
, "cipher selection:\n");
1678 * The cipher selection for the list is done. The ciphers are added
1679 * to the resulting precedence to the STACK_OF(SSL_CIPHER).
1681 for (curr
= head
; curr
!= NULL
; curr
= curr
->next
) {
1683 if (!sk_SSL_CIPHER_push(cipherstack
, curr
->cipher
)) {
1684 OPENSSL_free(co_list
);
1685 sk_SSL_CIPHER_free(cipherstack
);
1686 OSSL_TRACE_CANCEL(TLS_CIPHER
);
1689 if (trc_out
!= NULL
)
1690 BIO_printf(trc_out
, "<%s>\n", curr
->cipher
->name
);
1693 OPENSSL_free(co_list
); /* Not needed any longer */
1694 OSSL_TRACE_END(TLS_CIPHER
);
1696 if (!update_cipher_list_by_id(cipher_list_by_id
, cipherstack
)) {
1697 sk_SSL_CIPHER_free(cipherstack
);
1700 sk_SSL_CIPHER_free(*cipher_list
);
1701 *cipher_list
= cipherstack
;
1706 char *SSL_CIPHER_description(const SSL_CIPHER
*cipher
, char *buf
, int len
)
1709 const char *kx
, *au
, *enc
, *mac
;
1710 uint32_t alg_mkey
, alg_auth
, alg_enc
, alg_mac
;
1711 static const char *const format
= "%-30s %-7s Kx=%-8s Au=%-5s Enc=%-22s Mac=%-4s\n";
1715 if ((buf
= OPENSSL_malloc(len
)) == NULL
)
1717 } else if (len
< 128) {
1721 alg_mkey
= cipher
->algorithm_mkey
;
1722 alg_auth
= cipher
->algorithm_auth
;
1723 alg_enc
= cipher
->algorithm_enc
;
1724 alg_mac
= cipher
->algorithm_mac
;
1726 ver
= ssl_protocol_to_string(cipher
->min_tls
);
1788 /* New GOST ciphersuites have both SSL_aGOST12 and SSL_aGOST01 bits */
1789 case (SSL_aGOST12
| SSL_aGOST01
):
1826 enc
= "AESGCM(128)";
1829 enc
= "AESGCM(256)";
1832 enc
= "AESCCM(128)";
1835 enc
= "AESCCM(256)";
1837 case SSL_AES128CCM8
:
1838 enc
= "AESCCM8(128)";
1840 case SSL_AES256CCM8
:
1841 enc
= "AESCCM8(256)";
1843 case SSL_CAMELLIA128
:
1844 enc
= "Camellia(128)";
1846 case SSL_CAMELLIA256
:
1847 enc
= "Camellia(256)";
1849 case SSL_ARIA128GCM
:
1850 enc
= "ARIAGCM(128)";
1852 case SSL_ARIA256GCM
:
1853 enc
= "ARIAGCM(256)";
1858 case SSL_eGOST2814789CNT
:
1859 case SSL_eGOST2814789CNT12
:
1860 enc
= "GOST89(256)";
1865 case SSL_KUZNYECHIK
:
1868 case SSL_CHACHA20POLY1305
:
1869 enc
= "CHACHA20/POLY1305(256)";
1893 case SSL_GOST89MAC12
:
1899 case SSL_GOST12_256
:
1900 case SSL_GOST12_512
:
1908 BIO_snprintf(buf
, len
, format
, cipher
->name
, ver
, kx
, au
, enc
, mac
);
1913 const char *SSL_CIPHER_get_version(const SSL_CIPHER
*c
)
1919 * Backwards-compatibility crutch. In almost all contexts we report TLS
1920 * 1.0 as "TLSv1", but for ciphers we report "TLSv1.0".
1922 if (c
->min_tls
== TLS1_VERSION
)
1924 return ssl_protocol_to_string(c
->min_tls
);
1927 /* return the actual cipher being used */
1928 const char *SSL_CIPHER_get_name(const SSL_CIPHER
*c
)
1935 /* return the actual cipher being used in RFC standard name */
1936 const char *SSL_CIPHER_standard_name(const SSL_CIPHER
*c
)
1943 /* return the OpenSSL name based on given RFC standard name */
1944 const char *OPENSSL_cipher_name(const char *stdname
)
1946 const SSL_CIPHER
*c
;
1948 if (stdname
== NULL
)
1950 c
= ssl3_get_cipher_by_std_name(stdname
);
1951 return SSL_CIPHER_get_name(c
);
1954 /* number of bits for symmetric cipher */
1955 int SSL_CIPHER_get_bits(const SSL_CIPHER
*c
, int *alg_bits
)
1960 if (alg_bits
!= NULL
)
1961 *alg_bits
= (int)c
->alg_bits
;
1962 ret
= (int)c
->strength_bits
;
1967 uint32_t SSL_CIPHER_get_id(const SSL_CIPHER
*c
)
1972 uint16_t SSL_CIPHER_get_protocol_id(const SSL_CIPHER
*c
)
1974 return c
->id
& 0xFFFF;
1977 SSL_COMP
*ssl3_comp_find(STACK_OF(SSL_COMP
) *sk
, int n
)
1982 if ((n
== 0) || (sk
== NULL
))
1984 nn
= sk_SSL_COMP_num(sk
);
1985 for (i
= 0; i
< nn
; i
++) {
1986 ctmp
= sk_SSL_COMP_value(sk
, i
);
1993 #ifdef OPENSSL_NO_COMP
1994 STACK_OF(SSL_COMP
) *SSL_COMP_get_compression_methods(void)
1999 STACK_OF(SSL_COMP
) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP
)
2005 int SSL_COMP_add_compression_method(int id
, COMP_METHOD
*cm
)
2011 STACK_OF(SSL_COMP
) *SSL_COMP_get_compression_methods(void)
2013 load_builtin_compressions();
2014 return ssl_comp_methods
;
2017 STACK_OF(SSL_COMP
) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP
)
2020 STACK_OF(SSL_COMP
) *old_meths
= ssl_comp_methods
;
2021 ssl_comp_methods
= meths
;
2025 static void cmeth_free(SSL_COMP
*cm
)
2030 void ssl_comp_free_compression_methods_int(void)
2032 STACK_OF(SSL_COMP
) *old_meths
= ssl_comp_methods
;
2033 ssl_comp_methods
= NULL
;
2034 sk_SSL_COMP_pop_free(old_meths
, cmeth_free
);
2037 int SSL_COMP_add_compression_method(int id
, COMP_METHOD
*cm
)
2041 if (cm
== NULL
|| COMP_get_type(cm
) == NID_undef
)
2045 * According to draft-ietf-tls-compression-04.txt, the
2046 * compression number ranges should be the following:
2048 * 0 to 63: methods defined by the IETF
2049 * 64 to 192: external party methods assigned by IANA
2050 * 193 to 255: reserved for private use
2052 if (id
< 193 || id
> 255) {
2053 ERR_raise(ERR_LIB_SSL
, SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE
);
2057 comp
= OPENSSL_malloc(sizeof(*comp
));
2063 load_builtin_compressions();
2064 if (ssl_comp_methods
&& sk_SSL_COMP_find(ssl_comp_methods
, comp
) >= 0) {
2066 ERR_raise(ERR_LIB_SSL
, SSL_R_DUPLICATE_COMPRESSION_ID
);
2069 if (ssl_comp_methods
== NULL
|| !sk_SSL_COMP_push(ssl_comp_methods
, comp
)) {
2071 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
2078 const char *SSL_COMP_get_name(const COMP_METHOD
*comp
)
2080 #ifndef OPENSSL_NO_COMP
2081 return comp
? COMP_get_name(comp
) : NULL
;
2087 const char *SSL_COMP_get0_name(const SSL_COMP
*comp
)
2089 #ifndef OPENSSL_NO_COMP
2096 int SSL_COMP_get_id(const SSL_COMP
*comp
)
2098 #ifndef OPENSSL_NO_COMP
2105 const SSL_CIPHER
*ssl_get_cipher_by_char(SSL_CONNECTION
*s
,
2106 const unsigned char *ptr
,
2109 const SSL_CIPHER
*c
= SSL_CONNECTION_GET_SSL(s
)->method
->get_cipher_by_char(ptr
);
2111 if (c
== NULL
|| (!all
&& c
->valid
== 0))
2116 const SSL_CIPHER
*SSL_CIPHER_find(SSL
*ssl
, const unsigned char *ptr
)
2118 return ssl
->method
->get_cipher_by_char(ptr
);
2121 int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER
*c
)
2126 i
= ssl_cipher_info_lookup(ssl_cipher_table_cipher
, c
->algorithm_enc
);
2129 return ssl_cipher_table_cipher
[i
].nid
;
2132 int SSL_CIPHER_get_digest_nid(const SSL_CIPHER
*c
)
2134 int i
= ssl_cipher_info_lookup(ssl_cipher_table_mac
, c
->algorithm_mac
);
2138 return ssl_cipher_table_mac
[i
].nid
;
2141 int SSL_CIPHER_get_kx_nid(const SSL_CIPHER
*c
)
2143 int i
= ssl_cipher_info_lookup(ssl_cipher_table_kx
, c
->algorithm_mkey
);
2147 return ssl_cipher_table_kx
[i
].nid
;
2150 int SSL_CIPHER_get_auth_nid(const SSL_CIPHER
*c
)
2152 int i
= ssl_cipher_info_lookup(ssl_cipher_table_auth
, c
->algorithm_auth
);
2156 return ssl_cipher_table_auth
[i
].nid
;
2159 int ssl_get_md_idx(int md_nid
) {
2162 for(i
= 0; i
< SSL_MD_NUM_IDX
; i
++) {
2163 if (md_nid
== ssl_cipher_table_mac
[i
].nid
)
2169 const EVP_MD
*SSL_CIPHER_get_handshake_digest(const SSL_CIPHER
*c
)
2171 int idx
= c
->algorithm2
& SSL_HANDSHAKE_MAC_MASK
;
2173 if (idx
< 0 || idx
>= SSL_MD_NUM_IDX
)
2175 return EVP_get_digestbynid(ssl_cipher_table_mac
[idx
].nid
);
2178 int SSL_CIPHER_is_aead(const SSL_CIPHER
*c
)
2180 return (c
->algorithm_mac
& SSL_AEAD
) ? 1 : 0;
2183 int ssl_cipher_get_overhead(const SSL_CIPHER
*c
, size_t *mac_overhead
,
2184 size_t *int_overhead
, size_t *blocksize
,
2185 size_t *ext_overhead
)
2187 size_t mac
= 0, in
= 0, blk
= 0, out
= 0;
2189 /* Some hard-coded numbers for the CCM/Poly1305 MAC overhead
2190 * because there are no handy #defines for those. */
2191 if (c
->algorithm_enc
& (SSL_AESGCM
| SSL_ARIAGCM
)) {
2192 out
= EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
2193 } else if (c
->algorithm_enc
& (SSL_AES128CCM
| SSL_AES256CCM
)) {
2194 out
= EVP_CCM_TLS_EXPLICIT_IV_LEN
+ 16;
2195 } else if (c
->algorithm_enc
& (SSL_AES128CCM8
| SSL_AES256CCM8
)) {
2196 out
= EVP_CCM_TLS_EXPLICIT_IV_LEN
+ 8;
2197 } else if (c
->algorithm_enc
& SSL_CHACHA20POLY1305
) {
2199 } else if (c
->algorithm_mac
& SSL_AEAD
) {
2200 /* We're supposed to have handled all the AEAD modes above */
2203 /* Non-AEAD modes. Calculate MAC/cipher overhead separately */
2204 int digest_nid
= SSL_CIPHER_get_digest_nid(c
);
2205 const EVP_MD
*e_md
= EVP_get_digestbynid(digest_nid
);
2210 mac
= EVP_MD_get_size(e_md
);
2211 if (c
->algorithm_enc
!= SSL_eNULL
) {
2212 int cipher_nid
= SSL_CIPHER_get_cipher_nid(c
);
2213 const EVP_CIPHER
*e_ciph
= EVP_get_cipherbynid(cipher_nid
);
2215 /* If it wasn't AEAD or SSL_eNULL, we expect it to be a
2216 known CBC cipher. */
2217 if (e_ciph
== NULL
||
2218 EVP_CIPHER_get_mode(e_ciph
) != EVP_CIPH_CBC_MODE
)
2221 in
= 1; /* padding length byte */
2222 out
= EVP_CIPHER_get_iv_length(e_ciph
);
2223 blk
= EVP_CIPHER_get_block_size(e_ciph
);
2229 *mac_overhead
= mac
;
2232 *ext_overhead
= out
;
2237 int ssl_cert_is_disabled(SSL_CTX
*ctx
, size_t idx
)
2239 const SSL_CERT_LOOKUP
*cl
;
2241 /* A provider-loaded key type is always enabled */
2242 if (idx
>= SSL_PKEY_NUM
)
2245 cl
= ssl_cert_lookup_by_idx(idx
, ctx
);
2246 if (cl
== NULL
|| (cl
->amask
& ctx
->disabled_auth_mask
) != 0)
2252 * Default list of TLSv1.2 (and earlier) ciphers
2253 * SSL_DEFAULT_CIPHER_LIST deprecated in 3.0.0
2254 * Update both macro and function simultaneously
2256 const char *OSSL_default_cipher_list(void)
2258 return "ALL:!COMPLEMENTOFDEFAULT:!eNULL";
2262 * Default list of TLSv1.3 (and later) ciphers
2263 * TLS_DEFAULT_CIPHERSUITES deprecated in 3.0.0
2264 * Update both macro and function simultaneously
2266 const char *OSSL_default_ciphersuites(void)
2268 return "TLS_AES_256_GCM_SHA384:"
2269 "TLS_CHACHA20_POLY1305_SHA256:"
2270 "TLS_AES_128_GCM_SHA256";