Update the cipher(1) documentation to explicitly state that the RSA cipher
[openssl.git] / doc / man1 / ciphers.pod
1 =pod
2
3 =head1 NAME
4
5 ciphers - SSL cipher display and cipher list tool
6
7 =head1 SYNOPSIS
8
9 B<openssl> B<ciphers>
10 [B<-help>]
11 [B<-s>]
12 [B<-v>]
13 [B<-V>]
14 [B<-ssl3>]
15 [B<-tls1>]
16 [B<-tls1_1>]
17 [B<-tls1_2>]
18 [B<-tls1_3>]
19 [B<-s>]
20 [B<-psk>]
21 [B<-srp>]
22 [B<-stdname>]
23 [B<cipherlist>]
24
25 =head1 DESCRIPTION
26
27 The B<ciphers> command converts textual OpenSSL cipher lists into ordered
28 SSL cipher preference lists. It can be used as a test tool to determine
29 the appropriate cipherlist.
30
31 =head1 OPTIONS
32
33 =over 4
34
35 =item B<-help>
36
37 Print a usage message.
38
39 =item B<-s>
40
41 Only list supported ciphers: those consistent with the security level, and
42 minimum and maximum protocol version.  This is closer to the actual cipher list
43 an application will support.
44
45 PSK and SRP ciphers are not enabled by default: they require B<-psk> or B<-srp>
46 to enable them.
47
48 It also does not change the default list of supported signature algorithms.
49
50 On a server the list of supported ciphers might also exclude other ciphers
51 depending on the configured certificates and presence of DH parameters.
52
53 If this option is not used then all ciphers that match the cipherlist will be
54 listed.
55
56 =item B<-psk>
57
58 When combined with B<-s> includes cipher suites which require PSK.
59
60 =item B<-srp>
61
62 When combined with B<-s> includes cipher suites which require SRP.
63
64 =item B<-v>
65
66 Verbose output: For each ciphersuite, list details as provided by
67 L<SSL_CIPHER_description(3)>.
68
69 =item B<-V>
70
71 Like B<-v>, but include the official cipher suite values in hex.
72
73 =item B<-tls1_3>
74
75 In combination with the B<-s> option, list the ciphers which would be used if
76 TLSv1.3 were negotiated.
77
78 =item B<-tls1_2>
79
80 In combination with the B<-s> option, list the ciphers which would be used if
81 TLSv1.2 were negotiated.
82
83 =item B<-ssl3>
84
85 In combination with the B<-s> option, list the ciphers which would be used if
86 SSLv3 were negotiated.
87
88 =item B<-tls1>
89
90 In combination with the B<-s> option, list the ciphers which would be used if
91 TLSv1 were negotiated.
92
93 =item B<-tls1_1>
94
95 In combination with the B<-s> option, list the ciphers which would be used if
96 TLSv1.1 were negotiated.
97
98 =item B<-stdname>
99
100 precede each ciphersuite by its standard name: only available is OpenSSL
101 is built with tracing enabled (B<enable-ssl-trace> argument to Configure).
102
103 =item B<cipherlist>
104
105 a cipher list to convert to a cipher preference list. If it is not included
106 then the default cipher list will be used. The format is described below.
107
108 =back
109
110 =head1 CIPHER LIST FORMAT
111
112 The cipher list consists of one or more I<cipher strings> separated by colons.
113 Commas or spaces are also acceptable separators but colons are normally used.
114
115 The actual cipher string can take several different forms.
116
117 It can consist of a single cipher suite such as B<RC4-SHA>.
118
119 It can represent a list of cipher suites containing a certain algorithm, or
120 cipher suites of a certain type. For example B<SHA1> represents all ciphers
121 suites using the digest algorithm SHA1 and B<SSLv3> represents all SSL v3
122 algorithms.
123
124 Lists of cipher suites can be combined in a single cipher string using the
125 B<+> character. This is used as a logical B<and> operation. For example
126 B<SHA1+DES> represents all cipher suites containing the SHA1 B<and> the DES
127 algorithms.
128
129 Each cipher string can be optionally preceded by the characters B<!>,
130 B<-> or B<+>.
131
132 If B<!> is used then the ciphers are permanently deleted from the list.
133 The ciphers deleted can never reappear in the list even if they are
134 explicitly stated.
135
136 If B<-> is used then the ciphers are deleted from the list, but some or
137 all of the ciphers can be added again by later options.
138
139 If B<+> is used then the ciphers are moved to the end of the list. This
140 option doesn't add any new ciphers it just moves matching existing ones.
141
142 If none of these characters is present then the string is just interpreted
143 as a list of ciphers to be appended to the current preference list. If the
144 list includes any ciphers already present they will be ignored: that is they
145 will not moved to the end of the list.
146
147 The cipher string B<@STRENGTH> can be used at any point to sort the current
148 cipher list in order of encryption algorithm key length.
149
150 The cipher string B<@SECLEVEL=n> can be used at any point to set the security
151 level to B<n>.
152
153 =head1 CIPHER STRINGS
154
155 The following is a list of all permitted cipher strings and their meanings.
156
157 =over 4
158
159 =item B<DEFAULT>
160
161 The default cipher list.
162 This is determined at compile time and is normally
163 B<ALL:!COMPLEMENTOFDEFAULT:!eNULL>.
164 When used, this must be the first cipherstring specified.
165
166 =item B<COMPLEMENTOFDEFAULT>
167
168 The ciphers included in B<ALL>, but not enabled by default. Currently
169 this includes all RC4 and anonymous ciphers. Note that this rule does
170 not cover B<eNULL>, which is not included by B<ALL> (use B<COMPLEMENTOFALL> if
171 necessary). Note that RC4 based ciphersuites are not built into OpenSSL by
172 default (see the enable-weak-ssl-ciphers option to Configure).
173
174 =item B<ALL>
175
176 All cipher suites except the B<eNULL> ciphers (which must be explicitly enabled
177 if needed).
178 As of OpenSSL 1.0.0, the B<ALL> cipher suites are sensibly ordered by default.
179
180 =item B<COMPLEMENTOFALL>
181
182 The cipher suites not enabled by B<ALL>, currently B<eNULL>.
183
184 =item B<HIGH>
185
186 "high" encryption cipher suites. This currently means those with key lengths
187 larger than 128 bits, and some cipher suites with 128-bit keys.
188
189 =item B<MEDIUM>
190
191 "medium" encryption cipher suites, currently some of those using 128 bit
192 encryption.
193
194 =item B<LOW>
195
196 "low" encryption cipher suites, currently those using 64 or 56 bit
197 encryption algorithms but excluding export cipher suites.  All these
198 ciphersuites have been removed as of OpenSSL 1.1.0.
199
200 =item B<eNULL>, B<NULL>
201
202 The "NULL" ciphers that is those offering no encryption. Because these offer no
203 encryption at all and are a security risk they are not enabled via either the
204 B<DEFAULT> or B<ALL> cipher strings.
205 Be careful when building cipherlists out of lower-level primitives such as
206 B<kRSA> or B<aECDSA> as these do overlap with the B<eNULL> ciphers.  When in
207 doubt, include B<!eNULL> in your cipherlist.
208
209 =item B<aNULL>
210
211 The cipher suites offering no authentication. This is currently the anonymous
212 DH algorithms and anonymous ECDH algorithms. These cipher suites are vulnerable
213 to "man in the middle" attacks and so their use is discouraged.
214 These are excluded from the B<DEFAULT> ciphers, but included in the B<ALL>
215 ciphers.
216 Be careful when building cipherlists out of lower-level primitives such as
217 B<kDHE> or B<AES> as these do overlap with the B<aNULL> ciphers.
218 When in doubt, include B<!aNULL> in your cipherlist.
219
220 =item B<kRSA>, B<aRSA>, B<RSA>
221
222 Cipher suites using RSA key exchange or authentication. B<RSA> is an alias for
223 B<kRSA>.
224
225 =item B<kDHr>, B<kDHd>, B<kDH>
226
227 Cipher suites using static DH key agreement and DH certificates signed by CAs
228 with RSA and DSS keys or either respectively.
229 All these cipher suites have been removed in OpenSSL 1.1.0.
230
231 =item B<kDHE>, B<kEDH>, B<DH>
232
233 Cipher suites using ephemeral DH key agreement, including anonymous cipher
234 suites.
235
236 =item B<DHE>, B<EDH>
237
238 Cipher suites using authenticated ephemeral DH key agreement.
239
240 =item B<ADH>
241
242 Anonymous DH cipher suites, note that this does not include anonymous Elliptic
243 Curve DH (ECDH) cipher suites.
244
245 =item B<kEECDH>, B<kECDHE>, B<ECDH>
246
247 Cipher suites using ephemeral ECDH key agreement, including anonymous
248 cipher suites.
249
250 =item B<ECDHE>, B<EECDH>
251
252 Cipher suites using authenticated ephemeral ECDH key agreement.
253
254 =item B<AECDH>
255
256 Anonymous Elliptic Curve Diffie-Hellman cipher suites.
257
258 =item B<aDSS>, B<DSS>
259
260 Cipher suites using DSS authentication, i.e. the certificates carry DSS keys.
261
262 =item B<aDH>
263
264 Cipher suites effectively using DH authentication, i.e. the certificates carry
265 DH keys.
266 All these cipher suites have been removed in OpenSSL 1.1.0.
267
268 =item B<aECDSA>, B<ECDSA>
269
270 Cipher suites using ECDSA authentication, i.e. the certificates carry ECDSA
271 keys.
272
273 =item B<TLSv1.2>, B<TLSv1.0>, B<SSLv3>
274
275 Lists ciphersuites which are only supported in at least TLS v1.2, TLS v1.0 or
276 SSL v3.0 respectively.
277 Note: there are no ciphersuites specific to TLS v1.1.
278 Since this is only the minimum version, if, for example, TLSv1.0 is negotiated
279 then both TLSv1.0 and SSLv3.0 ciphersuites are available.
280
281 Note: these cipher strings B<do not> change the negotiated version of SSL or
282 TLS, they only affect the list of available cipher suites.
283
284 =item B<AES128>, B<AES256>, B<AES>
285
286 cipher suites using 128 bit AES, 256 bit AES or either 128 or 256 bit AES.
287
288 =item B<AESGCM>
289
290 AES in Galois Counter Mode (GCM): these ciphersuites are only supported
291 in TLS v1.2.
292
293 =item B<AESCCM>, B<AESCCM8>
294
295 AES in Cipher Block Chaining - Message Authentication Mode (CCM): these
296 ciphersuites are only supported in TLS v1.2. B<AESCCM> references CCM
297 cipher suites using both 16 and 8 octet Integrity Check Value (ICV)
298 while B<AESCCM8> only references 8 octet ICV.
299
300 =item B<ARIA128>, B<ARIA256>, B<ARIA>
301
302 cipher suites using 128 bit ARIA, 256 bit ARIA or either 128 or 256 bit
303 ARIA.
304
305 =item B<CAMELLIA128>, B<CAMELLIA256>, B<CAMELLIA>
306
307 cipher suites using 128 bit CAMELLIA, 256 bit CAMELLIA or either 128 or 256 bit
308 CAMELLIA.
309
310 =item B<CHACHA20>
311
312 cipher suites using ChaCha20.
313
314 =item B<3DES>
315
316 cipher suites using triple DES.
317
318 =item B<DES>
319
320 Cipher suites using DES (not triple DES).
321 All these cipher suites have been removed in OpenSSL 1.1.0.
322
323 =item B<RC4>
324
325 Cipher suites using RC4.
326
327 =item B<RC2>
328
329 Cipher suites using RC2.
330
331 =item B<IDEA>
332
333 Cipher suites using IDEA.
334
335 =item B<SEED>
336
337 Cipher suites using SEED.
338
339 =item B<MD5>
340
341 Cipher suites using MD5.
342
343 =item B<SHA1>, B<SHA>
344
345 Cipher suites using SHA1.
346
347 =item B<SHA256>, B<SHA384>
348
349 Ciphersuites using SHA256 or SHA384.
350
351 =item B<aGOST>
352
353 Cipher suites using GOST R 34.10 (either 2001 or 94) for authentication
354 (needs an engine supporting GOST algorithms).
355
356 =item B<aGOST01>
357
358 Cipher suites using GOST R 34.10-2001 authentication.
359
360 =item B<kGOST>
361
362 Cipher suites, using VKO 34.10 key exchange, specified in the RFC 4357.
363
364 =item B<GOST94>
365
366 Cipher suites, using HMAC based on GOST R 34.11-94.
367
368 =item B<GOST89MAC>
369
370 Cipher suites using GOST 28147-89 MAC B<instead of> HMAC.
371
372 =item B<PSK>
373
374 All cipher suites using pre-shared keys (PSK).
375
376 =item B<kPSK>, B<kECDHEPSK>, B<kDHEPSK>, B<kRSAPSK>
377
378 Cipher suites using PSK key exchange, ECDHE_PSK, DHE_PSK or RSA_PSK.
379
380 =item B<aPSK>
381
382 Cipher suites using PSK authentication (currently all PSK modes apart from
383 RSA_PSK).
384
385 =item B<SUITEB128>, B<SUITEB128ONLY>, B<SUITEB192>
386
387 Enables suite B mode of operation using 128 (permitting 192 bit mode by peer)
388 128 bit (not permitting 192 bit by peer) or 192 bit level of security
389 respectively.
390 If used these cipherstrings should appear first in the cipher
391 list and anything after them is ignored.
392 Setting Suite B mode has additional consequences required to comply with
393 RFC6460.
394 In particular the supported signature algorithms is reduced to support only
395 ECDSA and SHA256 or SHA384, only the elliptic curves P-256 and P-384 can be
396 used and only the two suite B compliant ciphersuites
397 (ECDHE-ECDSA-AES128-GCM-SHA256 and ECDHE-ECDSA-AES256-GCM-SHA384) are
398 permissible.
399
400 =back
401
402 =head1 CIPHER SUITE NAMES
403
404 The following lists give the SSL or TLS cipher suites names from the
405 relevant specification and their OpenSSL equivalents. It should be noted,
406 that several cipher suite names do not include the authentication used,
407 e.g. DES-CBC3-SHA. In these cases, RSA authentication is used.
408
409 =head2 SSL v3.0 cipher suites
410
411  SSL_RSA_WITH_NULL_MD5                   NULL-MD5
412  SSL_RSA_WITH_NULL_SHA                   NULL-SHA
413  SSL_RSA_WITH_RC4_128_MD5                RC4-MD5
414  SSL_RSA_WITH_RC4_128_SHA                RC4-SHA
415  SSL_RSA_WITH_IDEA_CBC_SHA               IDEA-CBC-SHA
416  SSL_RSA_WITH_3DES_EDE_CBC_SHA           DES-CBC3-SHA
417
418  SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA        DH-DSS-DES-CBC3-SHA
419  SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA        DH-RSA-DES-CBC3-SHA
420  SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA       DHE-DSS-DES-CBC3-SHA
421  SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA       DHE-RSA-DES-CBC3-SHA
422
423  SSL_DH_anon_WITH_RC4_128_MD5            ADH-RC4-MD5
424  SSL_DH_anon_WITH_3DES_EDE_CBC_SHA       ADH-DES-CBC3-SHA
425
426  SSL_FORTEZZA_KEA_WITH_NULL_SHA          Not implemented.
427  SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA  Not implemented.
428  SSL_FORTEZZA_KEA_WITH_RC4_128_SHA       Not implemented.
429
430 =head2 TLS v1.0 cipher suites
431
432  TLS_RSA_WITH_NULL_MD5                   NULL-MD5
433  TLS_RSA_WITH_NULL_SHA                   NULL-SHA
434  TLS_RSA_WITH_RC4_128_MD5                RC4-MD5
435  TLS_RSA_WITH_RC4_128_SHA                RC4-SHA
436  TLS_RSA_WITH_IDEA_CBC_SHA               IDEA-CBC-SHA
437  TLS_RSA_WITH_3DES_EDE_CBC_SHA           DES-CBC3-SHA
438
439  TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA        Not implemented.
440  TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA        Not implemented.
441  TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA       DHE-DSS-DES-CBC3-SHA
442  TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA       DHE-RSA-DES-CBC3-SHA
443
444  TLS_DH_anon_WITH_RC4_128_MD5            ADH-RC4-MD5
445  TLS_DH_anon_WITH_3DES_EDE_CBC_SHA       ADH-DES-CBC3-SHA
446
447 =head2 AES ciphersuites from RFC3268, extending TLS v1.0
448
449  TLS_RSA_WITH_AES_128_CBC_SHA            AES128-SHA
450  TLS_RSA_WITH_AES_256_CBC_SHA            AES256-SHA
451
452  TLS_DH_DSS_WITH_AES_128_CBC_SHA         DH-DSS-AES128-SHA
453  TLS_DH_DSS_WITH_AES_256_CBC_SHA         DH-DSS-AES256-SHA
454  TLS_DH_RSA_WITH_AES_128_CBC_SHA         DH-RSA-AES128-SHA
455  TLS_DH_RSA_WITH_AES_256_CBC_SHA         DH-RSA-AES256-SHA
456
457  TLS_DHE_DSS_WITH_AES_128_CBC_SHA        DHE-DSS-AES128-SHA
458  TLS_DHE_DSS_WITH_AES_256_CBC_SHA        DHE-DSS-AES256-SHA
459  TLS_DHE_RSA_WITH_AES_128_CBC_SHA        DHE-RSA-AES128-SHA
460  TLS_DHE_RSA_WITH_AES_256_CBC_SHA        DHE-RSA-AES256-SHA
461
462  TLS_DH_anon_WITH_AES_128_CBC_SHA        ADH-AES128-SHA
463  TLS_DH_anon_WITH_AES_256_CBC_SHA        ADH-AES256-SHA
464
465 =head2 Camellia ciphersuites from RFC4132, extending TLS v1.0
466
467  TLS_RSA_WITH_CAMELLIA_128_CBC_SHA      CAMELLIA128-SHA
468  TLS_RSA_WITH_CAMELLIA_256_CBC_SHA      CAMELLIA256-SHA
469
470  TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA   DH-DSS-CAMELLIA128-SHA
471  TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA   DH-DSS-CAMELLIA256-SHA
472  TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA   DH-RSA-CAMELLIA128-SHA
473  TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA   DH-RSA-CAMELLIA256-SHA
474
475  TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA  DHE-DSS-CAMELLIA128-SHA
476  TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA  DHE-DSS-CAMELLIA256-SHA
477  TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA  DHE-RSA-CAMELLIA128-SHA
478  TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA  DHE-RSA-CAMELLIA256-SHA
479
480  TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA  ADH-CAMELLIA128-SHA
481  TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA  ADH-CAMELLIA256-SHA
482
483 =head2 SEED ciphersuites from RFC4162, extending TLS v1.0
484
485  TLS_RSA_WITH_SEED_CBC_SHA              SEED-SHA
486
487  TLS_DH_DSS_WITH_SEED_CBC_SHA           DH-DSS-SEED-SHA
488  TLS_DH_RSA_WITH_SEED_CBC_SHA           DH-RSA-SEED-SHA
489
490  TLS_DHE_DSS_WITH_SEED_CBC_SHA          DHE-DSS-SEED-SHA
491  TLS_DHE_RSA_WITH_SEED_CBC_SHA          DHE-RSA-SEED-SHA
492
493  TLS_DH_anon_WITH_SEED_CBC_SHA          ADH-SEED-SHA
494
495 =head2 GOST ciphersuites from draft-chudov-cryptopro-cptls, extending TLS v1.0
496
497 Note: these ciphers require an engine which including GOST cryptographic
498 algorithms, such as the B<ccgost> engine, included in the OpenSSL distribution.
499
500  TLS_GOSTR341094_WITH_28147_CNT_IMIT GOST94-GOST89-GOST89
501  TLS_GOSTR341001_WITH_28147_CNT_IMIT GOST2001-GOST89-GOST89
502  TLS_GOSTR341094_WITH_NULL_GOSTR3411 GOST94-NULL-GOST94
503  TLS_GOSTR341001_WITH_NULL_GOSTR3411 GOST2001-NULL-GOST94
504
505 =head2 Additional Export 1024 and other cipher suites
506
507 Note: these ciphers can also be used in SSL v3.
508
509  TLS_DHE_DSS_WITH_RC4_128_SHA            DHE-DSS-RC4-SHA
510
511 =head2 Elliptic curve cipher suites.
512
513  TLS_ECDHE_RSA_WITH_NULL_SHA             ECDHE-RSA-NULL-SHA
514  TLS_ECDHE_RSA_WITH_RC4_128_SHA          ECDHE-RSA-RC4-SHA
515  TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA     ECDHE-RSA-DES-CBC3-SHA
516  TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA      ECDHE-RSA-AES128-SHA
517  TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA      ECDHE-RSA-AES256-SHA
518
519  TLS_ECDHE_ECDSA_WITH_NULL_SHA           ECDHE-ECDSA-NULL-SHA
520  TLS_ECDHE_ECDSA_WITH_RC4_128_SHA        ECDHE-ECDSA-RC4-SHA
521  TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA   ECDHE-ECDSA-DES-CBC3-SHA
522  TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA    ECDHE-ECDSA-AES128-SHA
523  TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA    ECDHE-ECDSA-AES256-SHA
524
525  TLS_ECDH_anon_WITH_NULL_SHA             AECDH-NULL-SHA
526  TLS_ECDH_anon_WITH_RC4_128_SHA          AECDH-RC4-SHA
527  TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA     AECDH-DES-CBC3-SHA
528  TLS_ECDH_anon_WITH_AES_128_CBC_SHA      AECDH-AES128-SHA
529  TLS_ECDH_anon_WITH_AES_256_CBC_SHA      AECDH-AES256-SHA
530
531 =head2 TLS v1.2 cipher suites
532
533  TLS_RSA_WITH_NULL_SHA256                  NULL-SHA256
534
535  TLS_RSA_WITH_AES_128_CBC_SHA256           AES128-SHA256
536  TLS_RSA_WITH_AES_256_CBC_SHA256           AES256-SHA256
537  TLS_RSA_WITH_AES_128_GCM_SHA256           AES128-GCM-SHA256
538  TLS_RSA_WITH_AES_256_GCM_SHA384           AES256-GCM-SHA384
539
540  TLS_DH_RSA_WITH_AES_128_CBC_SHA256        DH-RSA-AES128-SHA256
541  TLS_DH_RSA_WITH_AES_256_CBC_SHA256        DH-RSA-AES256-SHA256
542  TLS_DH_RSA_WITH_AES_128_GCM_SHA256        DH-RSA-AES128-GCM-SHA256
543  TLS_DH_RSA_WITH_AES_256_GCM_SHA384        DH-RSA-AES256-GCM-SHA384
544
545  TLS_DH_DSS_WITH_AES_128_CBC_SHA256        DH-DSS-AES128-SHA256
546  TLS_DH_DSS_WITH_AES_256_CBC_SHA256        DH-DSS-AES256-SHA256
547  TLS_DH_DSS_WITH_AES_128_GCM_SHA256        DH-DSS-AES128-GCM-SHA256
548  TLS_DH_DSS_WITH_AES_256_GCM_SHA384        DH-DSS-AES256-GCM-SHA384
549
550  TLS_DHE_RSA_WITH_AES_128_CBC_SHA256       DHE-RSA-AES128-SHA256
551  TLS_DHE_RSA_WITH_AES_256_CBC_SHA256       DHE-RSA-AES256-SHA256
552  TLS_DHE_RSA_WITH_AES_128_GCM_SHA256       DHE-RSA-AES128-GCM-SHA256
553  TLS_DHE_RSA_WITH_AES_256_GCM_SHA384       DHE-RSA-AES256-GCM-SHA384
554
555  TLS_DHE_DSS_WITH_AES_128_CBC_SHA256       DHE-DSS-AES128-SHA256
556  TLS_DHE_DSS_WITH_AES_256_CBC_SHA256       DHE-DSS-AES256-SHA256
557  TLS_DHE_DSS_WITH_AES_128_GCM_SHA256       DHE-DSS-AES128-GCM-SHA256
558  TLS_DHE_DSS_WITH_AES_256_GCM_SHA384       DHE-DSS-AES256-GCM-SHA384
559
560  TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256     ECDHE-RSA-AES128-SHA256
561  TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384     ECDHE-RSA-AES256-SHA384
562  TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256     ECDHE-RSA-AES128-GCM-SHA256
563  TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384     ECDHE-RSA-AES256-GCM-SHA384
564
565  TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256   ECDHE-ECDSA-AES128-SHA256
566  TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDHE-ECDSA-AES256-SHA384
567  TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDHE-ECDSA-AES128-GCM-SHA256
568  TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDHE-ECDSA-AES256-GCM-SHA384
569
570  TLS_DH_anon_WITH_AES_128_CBC_SHA256       ADH-AES128-SHA256
571  TLS_DH_anon_WITH_AES_256_CBC_SHA256       ADH-AES256-SHA256
572  TLS_DH_anon_WITH_AES_128_GCM_SHA256       ADH-AES128-GCM-SHA256
573  TLS_DH_anon_WITH_AES_256_GCM_SHA384       ADH-AES256-GCM-SHA384
574
575  RSA_WITH_AES_128_CCM                      AES128-CCM
576  RSA_WITH_AES_256_CCM                      AES256-CCM
577  DHE_RSA_WITH_AES_128_CCM                  DHE-RSA-AES128-CCM
578  DHE_RSA_WITH_AES_256_CCM                  DHE-RSA-AES256-CCM
579  RSA_WITH_AES_128_CCM_8                    AES128-CCM8
580  RSA_WITH_AES_256_CCM_8                    AES256-CCM8
581  DHE_RSA_WITH_AES_128_CCM_8                DHE-RSA-AES128-CCM8
582  DHE_RSA_WITH_AES_256_CCM_8                DHE-RSA-AES256-CCM8
583  ECDHE_ECDSA_WITH_AES_128_CCM              ECDHE-ECDSA-AES128-CCM
584  ECDHE_ECDSA_WITH_AES_256_CCM              ECDHE-ECDSA-AES256-CCM
585  ECDHE_ECDSA_WITH_AES_128_CCM_8            ECDHE-ECDSA-AES128-CCM8
586  ECDHE_ECDSA_WITH_AES_256_CCM_8            ECDHE-ECDSA-AES256-CCM8
587
588 =head2 ARIA ciphersuites from RFC6209, extending TLS v1.2
589
590  TLS_RSA_WITH_ARIA_128_CBC_SHA256          ARIA128-CBC-SHA256
591  TLS_RSA_WITH_ARIA_256_CBC_SHA384          ARIA256-CBC-SHA384
592  TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256      DHE-DSS-ARIA128-CBC-SHA256
593  TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384      DHE-DSS-ARIA256-CBC-SHA384
594  TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256      DHE-RSA-ARIA128-CBC-SHA256
595  TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384      DHE-RSA-ARIA256-CBC-SHA384
596  TLS_DH_anon_WITH_ARIA_128_CBC_SHA256      DH-anon-ARIA128-CBC-SHA256
597  TLS_DH_anon_WITH_ARIA_256_CBC_SHA384      DH-anon-ARIA256-CBC-SHA384
598  TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256  ECDHE-ECDSA-ARIA128-CBC-SHA256
599  TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384  ECDHE-ECDSA-ARIA256-CBC-SHA384
600  TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256    ECDHE-RSA-ARIA128-CBC-SHA256
601  TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384    ECDHE-RSA-ARIA256-CBC-SHA384
602
603 =head2 Camellia HMAC-Based ciphersuites from RFC6367, extending TLS v1.2
604
605  TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 ECDHE-ECDSA-CAMELLIA128-SHA256
606  TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 ECDHE-ECDSA-CAMELLIA256-SHA384
607  TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256   ECDHE-RSA-CAMELLIA128-SHA256
608  TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384   ECDHE-RSA-CAMELLIA256-SHA384
609
610 =head2 Pre-shared keying (PSK) ciphersuites
611
612  PSK_WITH_NULL_SHA                         PSK-NULL-SHA
613  DHE_PSK_WITH_NULL_SHA                     DHE-PSK-NULL-SHA
614  RSA_PSK_WITH_NULL_SHA                     RSA-PSK-NULL-SHA
615
616  PSK_WITH_RC4_128_SHA                      PSK-RC4-SHA
617  PSK_WITH_3DES_EDE_CBC_SHA                 PSK-3DES-EDE-CBC-SHA
618  PSK_WITH_AES_128_CBC_SHA                  PSK-AES128-CBC-SHA
619  PSK_WITH_AES_256_CBC_SHA                  PSK-AES256-CBC-SHA
620
621  DHE_PSK_WITH_RC4_128_SHA                  DHE-PSK-RC4-SHA
622  DHE_PSK_WITH_3DES_EDE_CBC_SHA             DHE-PSK-3DES-EDE-CBC-SHA
623  DHE_PSK_WITH_AES_128_CBC_SHA              DHE-PSK-AES128-CBC-SHA
624  DHE_PSK_WITH_AES_256_CBC_SHA              DHE-PSK-AES256-CBC-SHA
625
626  RSA_PSK_WITH_RC4_128_SHA                  RSA-PSK-RC4-SHA
627  RSA_PSK_WITH_3DES_EDE_CBC_SHA             RSA-PSK-3DES-EDE-CBC-SHA
628  RSA_PSK_WITH_AES_128_CBC_SHA              RSA-PSK-AES128-CBC-SHA
629  RSA_PSK_WITH_AES_256_CBC_SHA              RSA-PSK-AES256-CBC-SHA
630
631  PSK_WITH_AES_128_GCM_SHA256               PSK-AES128-GCM-SHA256
632  PSK_WITH_AES_256_GCM_SHA384               PSK-AES256-GCM-SHA384
633  DHE_PSK_WITH_AES_128_GCM_SHA256           DHE-PSK-AES128-GCM-SHA256
634  DHE_PSK_WITH_AES_256_GCM_SHA384           DHE-PSK-AES256-GCM-SHA384
635  RSA_PSK_WITH_AES_128_GCM_SHA256           RSA-PSK-AES128-GCM-SHA256
636  RSA_PSK_WITH_AES_256_GCM_SHA384           RSA-PSK-AES256-GCM-SHA384
637
638  PSK_WITH_AES_128_CBC_SHA256               PSK-AES128-CBC-SHA256
639  PSK_WITH_AES_256_CBC_SHA384               PSK-AES256-CBC-SHA384
640  PSK_WITH_NULL_SHA256                      PSK-NULL-SHA256
641  PSK_WITH_NULL_SHA384                      PSK-NULL-SHA384
642  DHE_PSK_WITH_AES_128_CBC_SHA256           DHE-PSK-AES128-CBC-SHA256
643  DHE_PSK_WITH_AES_256_CBC_SHA384           DHE-PSK-AES256-CBC-SHA384
644  DHE_PSK_WITH_NULL_SHA256                  DHE-PSK-NULL-SHA256
645  DHE_PSK_WITH_NULL_SHA384                  DHE-PSK-NULL-SHA384
646  RSA_PSK_WITH_AES_128_CBC_SHA256           RSA-PSK-AES128-CBC-SHA256
647  RSA_PSK_WITH_AES_256_CBC_SHA384           RSA-PSK-AES256-CBC-SHA384
648  RSA_PSK_WITH_NULL_SHA256                  RSA-PSK-NULL-SHA256
649  RSA_PSK_WITH_NULL_SHA384                  RSA-PSK-NULL-SHA384
650  PSK_WITH_AES_128_GCM_SHA256               PSK-AES128-GCM-SHA256
651  PSK_WITH_AES_256_GCM_SHA384               PSK-AES256-GCM-SHA384
652
653  ECDHE_PSK_WITH_RC4_128_SHA                ECDHE-PSK-RC4-SHA
654  ECDHE_PSK_WITH_3DES_EDE_CBC_SHA           ECDHE-PSK-3DES-EDE-CBC-SHA
655  ECDHE_PSK_WITH_AES_128_CBC_SHA            ECDHE-PSK-AES128-CBC-SHA
656  ECDHE_PSK_WITH_AES_256_CBC_SHA            ECDHE-PSK-AES256-CBC-SHA
657  ECDHE_PSK_WITH_AES_128_CBC_SHA256         ECDHE-PSK-AES128-CBC-SHA256
658  ECDHE_PSK_WITH_AES_256_CBC_SHA384         ECDHE-PSK-AES256-CBC-SHA384
659  ECDHE_PSK_WITH_NULL_SHA                   ECDHE-PSK-NULL-SHA
660  ECDHE_PSK_WITH_NULL_SHA256                ECDHE-PSK-NULL-SHA256
661  ECDHE_PSK_WITH_NULL_SHA384                ECDHE-PSK-NULL-SHA384
662
663  PSK_WITH_CAMELLIA_128_CBC_SHA256          PSK-CAMELLIA128-SHA256
664  PSK_WITH_CAMELLIA_256_CBC_SHA384          PSK-CAMELLIA256-SHA384
665
666  DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256      DHE-PSK-CAMELLIA128-SHA256
667  DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384      DHE-PSK-CAMELLIA256-SHA384
668
669  RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256      RSA-PSK-CAMELLIA128-SHA256
670  RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384      RSA-PSK-CAMELLIA256-SHA384
671
672  ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256    ECDHE-PSK-CAMELLIA128-SHA256
673  ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384    ECDHE-PSK-CAMELLIA256-SHA384
674
675  PSK_WITH_AES_128_CCM                      PSK-AES128-CCM
676  PSK_WITH_AES_256_CCM                      PSK-AES256-CCM
677  DHE_PSK_WITH_AES_128_CCM                  DHE-PSK-AES128-CCM
678  DHE_PSK_WITH_AES_256_CCM                  DHE-PSK-AES256-CCM
679  PSK_WITH_AES_128_CCM_8                    PSK-AES128-CCM8
680  PSK_WITH_AES_256_CCM_8                    PSK-AES256-CCM8
681  DHE_PSK_WITH_AES_128_CCM_8                DHE-PSK-AES128-CCM8
682  DHE_PSK_WITH_AES_256_CCM_8                DHE-PSK-AES256-CCM8
683
684 =head2 ChaCha20-Poly1305 cipher suites, extending TLS v1.2
685
686  TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256      ECDHE-RSA-CHACHA20-POLY1305
687  TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256    ECDHE-ECDSA-CHACHA20-POLY1305
688  TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256        DHE-RSA-CHACHA20-POLY1305
689  TLS_PSK_WITH_CHACHA20_POLY1305_SHA256            PSK-CHACHA20-POLY1305
690  TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256      ECDHE-PSK-CHACHA20-POLY1305
691  TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256        DHE-PSK-CHACHA20-POLY1305
692  TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256        RSA-PSK-CHACHA20-POLY1305
693
694 =head2 TLS v1.3 cipher suites
695
696  TLS_AES_128_GCM_SHA256                     TLS13-AES-128-GCM-SHA256
697  TLS_AES_256_GCM_SHA384                     TLS13-AES-256-GCM-SHA384
698  TLS_CHACHA20_POLY1305_SHA256               TLS13-CHACHA20-POLY1305-SHA256
699  TLS_AES_128_CCM_SHA256                     TLS13-AES-128-CCM-SHA256
700  TLS_AES_128_CCM_8_SHA256                   TLS13-AES-128-CCM-8-SHA256
701
702 =head2 Older names used by OpenSSL
703
704 The following names are accepted by older releases:
705
706  SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA    EDH-RSA-DES-CBC3-SHA (DHE-RSA-DES-CBC3-SHA)
707  SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA    EDH-DSS-DES-CBC3-SHA (DHE-DSS-DES-CBC3-SHA)
708
709 =head1 NOTES
710
711 Some compiled versions of OpenSSL may not include all the ciphers
712 listed here because some ciphers were excluded at compile time.
713
714 =head1 EXAMPLES
715
716 Verbose listing of all OpenSSL ciphers including NULL ciphers:
717
718  openssl ciphers -v 'ALL:eNULL'
719
720 Include all ciphers except NULL and anonymous DH then sort by
721 strength:
722
723  openssl ciphers -v 'ALL:!ADH:@STRENGTH'
724
725 Include all ciphers except ones with no encryption (eNULL) or no
726 authentication (aNULL):
727
728  openssl ciphers -v 'ALL:!aNULL'
729
730 Include only 3DES ciphers and then place RSA ciphers last:
731
732  openssl ciphers -v '3DES:+RSA'
733
734 Include all RC4 ciphers but leave out those without authentication:
735
736  openssl ciphers -v 'RC4:!COMPLEMENTOFDEFAULT'
737
738 Include all ciphers with RSA authentication but leave out ciphers without
739 encryption.
740
741  openssl ciphers -v 'RSA:!COMPLEMENTOFALL'
742
743 Set security level to 2 and display all ciphers consistent with level 2:
744
745  openssl ciphers -s -v 'ALL:@SECLEVEL=2'
746
747 =head1 SEE ALSO
748
749 L<s_client(1)>, L<s_server(1)>, L<ssl(7)>
750
751 =head1 HISTORY
752
753 The B<-V> option for the B<ciphers> command was added in OpenSSL 1.0.0.
754
755 =head1 COPYRIGHT
756
757 Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
758
759 Licensed under the OpenSSL license (the "License").  You may not use
760 this file except in compliance with the License.  You can obtain a copy
761 in the file LICENSE in the source distribution or at
762 L<https://www.openssl.org/source/license.html>.
763
764 =cut