GH528: "cipher -v" output is confusing.
[openssl.git] / doc / apps / 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<-s>]
11 [B<-v>]
12 [B<-V>]
13 [B<-ssl3>]
14 [B<-tls1>]
15 [B<-tls1_1>]
16 [B<-tls1_2>]
17 [B<-s>]
18 [B<-psk>]
19 [B<-stdname>]
20 [B<cipherlist>]
21
22 =head1 DESCRIPTION
23
24 The B<ciphers> command converts textual OpenSSL cipher lists into ordered
25 SSL cipher preference lists. It can be used as a test tool to determine
26 the appropriate cipherlist.
27
28 =head1 COMMAND OPTIONS
29
30 =over 4
31
32 =item B<-s>
33
34 Only list supported ciphers: those consistent with the security level. This
35 is the actual cipher list an application will support. If this option is
36 not used then ciphers excluded by the security level will still be listed.
37
38 =item B<-psk>
39
40 When combined with B<-s> includes cipher suites which require PSK.
41
42 =item B<-v>
43
44 Verbose output: For each ciphersuite, list details as provided by
45 L<SSL_CIPHER_description(3)>.
46
47 =item B<-V>
48
49 Like B<-v>, but include the official cipher suite values in hex.
50
51 =item B<-ssl3>
52
53 List the ciphers which would be used if SSL v3 was negotiated.
54
55 =item B<-tls1>
56
57 List the ciphers which would be used if TLS v1.0 was negotiated.
58
59 =item B<-tls1_1>
60
61 List the ciphers which would be used if TLS v1.1 was negotiated.
62
63 =item B<-tls1_2>
64
65 List the ciphers which would be used if TLS v1.2 was negotiated.
66
67 =item B<-stdname>
68
69 precede each ciphersuite by its standard name: only available is OpenSSL
70 is built with tracing enabled (B<enable-ssl-trace> argument to Configure).
71
72 =item B<-h>, B<-?>
73
74 print a brief usage message.
75
76 =item B<cipherlist>
77
78 a cipher list to convert to a cipher preference list. If it is not included
79 then the default cipher list will be used. The format is described below.
80
81 =back
82
83 =head1 CIPHER LIST FORMAT
84
85 The cipher list consists of one or more I<cipher strings> separated by colons.
86 Commas or spaces are also acceptable separators but colons are normally used.
87
88 The actual cipher string can take several different forms.
89
90 It can consist of a single cipher suite such as B<RC4-SHA>.
91
92 It can represent a list of cipher suites containing a certain algorithm, or
93 cipher suites of a certain type. For example B<SHA1> represents all ciphers
94 suites using the digest algorithm SHA1 and B<SSLv3> represents all SSL v3
95 algorithms.
96
97 Lists of cipher suites can be combined in a single cipher string using the
98 B<+> character. This is used as a logical B<and> operation. For example
99 B<SHA1+DES> represents all cipher suites containing the SHA1 B<and> the DES
100 algorithms.
101
102 Each cipher string can be optionally preceded by the characters B<!>,
103 B<-> or B<+>.
104
105 If B<!> is used then the ciphers are permanently deleted from the list.
106 The ciphers deleted can never reappear in the list even if they are
107 explicitly stated.
108
109 If B<-> is used then the ciphers are deleted from the list, but some or
110 all of the ciphers can be added again by later options.
111
112 If B<+> is used then the ciphers are moved to the end of the list. This
113 option doesn't add any new ciphers it just moves matching existing ones.
114
115 If none of these characters is present then the string is just interpreted
116 as a list of ciphers to be appended to the current preference list. If the
117 list includes any ciphers already present they will be ignored: that is they
118 will not moved to the end of the list.
119
120 The cipher string B<@STRENGTH> can be used at any point to sort the current
121 cipher list in order of encryption algorithm key length.
122
123 The cipher string B<@SECLEVEL=n> can be used at any point to set the security
124 level to B<n>.
125
126 =head1 CIPHER STRINGS
127
128 The following is a list of all permitted cipher strings and their meanings.
129
130 =over 4
131
132 =item B<DEFAULT>
133
134 the default cipher list. This is determined at compile time and
135 is B<ALL:!COMPLEMENTOFDEFAULT:!eNULL>. This must be the first cipher
136 string specified.
137
138 =item B<COMPLEMENTOFDEFAULT>
139
140 the ciphers included in B<ALL>, but not enabled by default. Currently
141 this includes all RC4, DES, RC2 and anonymous ciphers. Note that this rule does
142 not cover B<eNULL>, which is not included by B<ALL> (use B<COMPLEMENTOFALL> if
143 necessary).
144
145 =item B<ALL>
146
147 all cipher suites except the B<eNULL> ciphers which must be explicitly enabled;
148 as of OpenSSL, the B<ALL> cipher suites are reasonably ordered by default
149
150 =item B<COMPLEMENTOFALL>
151
152 the cipher suites not enabled by B<ALL>, currently being B<eNULL>.
153
154 =item B<HIGH>
155
156 "high" encryption cipher suites. This currently means those with key lengths
157 larger than 128 bits, and some cipher suites with 128-bit keys.
158
159 =item B<MEDIUM>
160
161 "medium" encryption cipher suites, currently some of those using 128 bit
162 encryption.
163
164 =item B<LOW>
165
166 "low" encryption cipher suites, currently those using 64 or 56 bit
167 encryption algorithms but excluding export cipher suites.  All these
168 ciphersuites have been removed as of OpenSSL 1.1.0.
169
170 =item B<eNULL>, B<NULL>
171
172 the "NULL" ciphers that is those offering no encryption. Because these offer no
173 encryption at all and are a security risk they are disabled unless explicitly
174 included.
175
176 =item B<aNULL>
177
178 the cipher suites offering no authentication. This is currently the anonymous
179 DH algorithms and anonymous ECDH algorithms. These cipher suites are vulnerable
180 to a "man in the middle" attack and so their use is normally discouraged.
181
182 =item B<kRSA>, B<aRSA>, B<RSA>
183
184 cipher suites using RSA key exchange, authentication or either respectively.
185
186 =item B<kDHr>, B<kDHd>, B<kDH>
187
188 cipher suites using DH key agreement and DH certificates signed by CAs with RSA
189 and DSS keys or either respectively.
190
191 =item B<kDHE>, B<kEDH>
192
193 cipher suites using ephemeral DH key agreement, including anonymous cipher
194 suites.
195
196 =item B<DHE>, B<EDH>
197
198 cipher suites using authenticated ephemeral DH key agreement.
199
200 =item B<ADH>
201
202 anonymous DH cipher suites, note that this does not include anonymous Elliptic
203 Curve DH (ECDH) cipher suites.
204
205 =item B<DH>
206
207 cipher suites using DH, including anonymous DH, ephemeral DH and fixed DH.
208
209 =item B<kECDHr>, B<kECDHe>, B<kECDH>
210
211 cipher suites using fixed ECDH key agreement signed by CAs with RSA and ECDSA
212 keys or either respectively.
213
214 =item B<kEECDH>, B<kECDHE>
215
216 cipher suites using ephemeral ECDH key agreement, including anonymous
217 cipher suites.
218
219 =item B<ECDHE>, B<EECDH>
220
221 cipher suites using authenticated ephemeral ECDH key agreement.
222
223 =item B<AECDH>
224
225 anonymous Elliptic Curve Diffie Hellman cipher suites.
226
227 =item B<ECDH>
228
229 cipher suites using ECDH key exchange, including anonymous, ephemeral and
230 fixed ECDH.
231
232 =item B<aDSS>, B<DSS>
233
234 cipher suites using DSS authentication, i.e. the certificates carry DSS keys.
235
236 =item B<aDH>
237
238 cipher suites effectively using DH authentication, i.e. the certificates carry
239 DH keys.
240
241 =item B<aECDH>
242
243 cipher suites effectively using ECDH authentication, i.e. the certificates
244 carry ECDH keys.
245
246 =item B<aECDSA>, B<ECDSA>
247
248 cipher suites using ECDSA authentication, i.e. the certificates carry ECDSA
249 keys.
250
251 =item B<TLSv1.2>, B<TLSv1.0>, B<SSLv3>
252
253 Lists ciphersuites which are only supported in at least TLS v1.2, TLS v1.0
254 or SSL v3.0 respectively. Note: there are no ciphersuites specific to TLS v1.1.
255 Since this is only the minimum version if, for example, TLS v1.0 is supported
256 then both TLS v1.0 and SSL v3.0 ciphersuites are included.
257
258 Note: these cipher strings B<do not> change the negotiated version of SSL or
259 TLS only the list of cipher suites.
260
261 =item B<AES128>, B<AES256>, B<AES>
262
263 cipher suites using 128 bit AES, 256 bit AES or either 128 or 256 bit AES.
264
265 =item B<AESGCM>
266
267 AES in Galois Counter Mode (GCM): these ciphersuites are only supported
268 in TLS v1.2.
269
270 =item B<AESCCM>, B<AESCCM8>
271
272 AES in Cipher Block Chaining - Message Authentication Mode (CCM): these
273 ciphersuites are only supported in TLS v1.2. B<AESCCM> references CCM
274 cipher suites using both 16 and 8 octet Integrity Check Value (ICV)
275 while B<AESCCM8> only references 8 octet ICV.
276
277 =item B<CAMELLIA128>, B<CAMELLIA256>, B<CAMELLIA>
278
279 cipher suites using 128 bit CAMELLIA, 256 bit CAMELLIA or either 128 or 256 bit
280 CAMELLIA.
281
282 =item B<3DES>
283
284 cipher suites using triple DES.
285
286 =item B<DES>
287
288 cipher suites using DES (not triple DES).
289
290 =item B<RC4>
291
292 cipher suites using RC4.
293
294 =item B<RC2>
295
296 cipher suites using RC2.
297
298 =item B<IDEA>
299
300 cipher suites using IDEA.
301
302 =item B<SEED>
303
304 cipher suites using SEED.
305
306 =item B<MD5>
307
308 cipher suites using MD5.
309
310 =item B<SHA1>, B<SHA>
311
312 cipher suites using SHA1.
313
314 =item B<SHA256>, B<SHA384>
315
316 ciphersuites using SHA256 or SHA384.
317
318 =item B<aGOST> 
319
320 cipher suites using GOST R 34.10 (either 2001 or 94) for authentication
321 (needs an engine supporting GOST algorithms). 
322
323 =item B<aGOST01>
324
325 cipher suites using GOST R 34.10-2001 authentication.
326
327 =item B<kGOST>
328
329 cipher suites, using VKO 34.10 key exchange, specified in the RFC 4357.
330
331 =item B<GOST94>
332
333 cipher suites, using HMAC based on GOST R 34.11-94.
334
335 =item B<GOST89MAC>
336
337 cipher suites using GOST 28147-89 MAC B<instead of> HMAC.
338
339 =item B<PSK>
340
341 all cipher suites using pre-shared keys (PSK).
342
343 =item B<kPSK>, B<kECDHEPSK>, B<kDHEPSK>, B<kRSAPSK>
344
345 cipher suites using PSK key exchange, ECDHE_PSK, DHE_PSK or RSA_PSK.
346
347 =item B<aPSK>
348
349 cipher suites using PSK authentication (currently all PSK modes apart from
350 RSA_PSK).
351
352 =item B<SUITEB128>, B<SUITEB128ONLY>, B<SUITEB192>
353
354 enables suite B mode operation using 128 (permitting 192 bit mode by peer)
355 128 bit (not permitting 192 bit by peer) or 192 bit level of security
356 respectively. If used these cipherstrings should appear first in the cipher
357 list and anything after them is ignored. Setting Suite B mode has additional
358 consequences required to comply with RFC6460. In particular the supported
359 signature algorithms is reduced to support only ECDSA and SHA256 or SHA384,
360 only the elliptic curves P-256 and P-384 can be used and only the two suite B
361 compliant ciphersuites (ECDHE-ECDSA-AES128-GCM-SHA256 and
362 ECDHE-ECDSA-AES256-GCM-SHA384) are permissible.
363
364 =back
365
366 =head1 CIPHER SUITE NAMES
367
368 The following lists give the SSL or TLS cipher suites names from the
369 relevant specification and their OpenSSL equivalents. It should be noted,
370 that several cipher suite names do not include the authentication used,
371 e.g. DES-CBC3-SHA. In these cases, RSA authentication is used.
372
373 =head2 SSL v3.0 cipher suites.
374
375  SSL_RSA_WITH_NULL_MD5                   NULL-MD5
376  SSL_RSA_WITH_NULL_SHA                   NULL-SHA
377  SSL_RSA_WITH_RC4_128_MD5                RC4-MD5
378  SSL_RSA_WITH_RC4_128_SHA                RC4-SHA
379  SSL_RSA_WITH_IDEA_CBC_SHA               IDEA-CBC-SHA
380  SSL_RSA_WITH_3DES_EDE_CBC_SHA           DES-CBC3-SHA
381
382  SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA        DH-DSS-DES-CBC3-SHA
383  SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA        DH-RSA-DES-CBC3-SHA
384  SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA       DHE-DSS-DES-CBC3-SHA
385  SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA       DHE-RSA-DES-CBC3-SHA
386
387  SSL_DH_anon_WITH_RC4_128_MD5            ADH-RC4-MD5
388  SSL_DH_anon_WITH_3DES_EDE_CBC_SHA       ADH-DES-CBC3-SHA
389
390  SSL_FORTEZZA_KEA_WITH_NULL_SHA          Not implemented.
391  SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA  Not implemented.
392  SSL_FORTEZZA_KEA_WITH_RC4_128_SHA       Not implemented.
393
394 =head2 TLS v1.0 cipher suites.
395
396  TLS_RSA_WITH_NULL_MD5                   NULL-MD5
397  TLS_RSA_WITH_NULL_SHA                   NULL-SHA
398  TLS_RSA_WITH_RC4_128_MD5                RC4-MD5
399  TLS_RSA_WITH_RC4_128_SHA                RC4-SHA
400  TLS_RSA_WITH_IDEA_CBC_SHA               IDEA-CBC-SHA
401  TLS_RSA_WITH_3DES_EDE_CBC_SHA           DES-CBC3-SHA
402
403  TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA        Not implemented.
404  TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA        Not implemented.
405  TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA       DHE-DSS-DES-CBC3-SHA
406  TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA       DHE-RSA-DES-CBC3-SHA
407
408  TLS_DH_anon_WITH_RC4_128_MD5            ADH-RC4-MD5
409  TLS_DH_anon_WITH_3DES_EDE_CBC_SHA       ADH-DES-CBC3-SHA
410
411 =head2 AES ciphersuites from RFC3268, extending TLS v1.0
412
413  TLS_RSA_WITH_AES_128_CBC_SHA            AES128-SHA
414  TLS_RSA_WITH_AES_256_CBC_SHA            AES256-SHA
415
416  TLS_DH_DSS_WITH_AES_128_CBC_SHA         DH-DSS-AES128-SHA
417  TLS_DH_DSS_WITH_AES_256_CBC_SHA         DH-DSS-AES256-SHA
418  TLS_DH_RSA_WITH_AES_128_CBC_SHA         DH-RSA-AES128-SHA
419  TLS_DH_RSA_WITH_AES_256_CBC_SHA         DH-RSA-AES256-SHA
420
421  TLS_DHE_DSS_WITH_AES_128_CBC_SHA        DHE-DSS-AES128-SHA
422  TLS_DHE_DSS_WITH_AES_256_CBC_SHA        DHE-DSS-AES256-SHA
423  TLS_DHE_RSA_WITH_AES_128_CBC_SHA        DHE-RSA-AES128-SHA
424  TLS_DHE_RSA_WITH_AES_256_CBC_SHA        DHE-RSA-AES256-SHA
425
426  TLS_DH_anon_WITH_AES_128_CBC_SHA        ADH-AES128-SHA
427  TLS_DH_anon_WITH_AES_256_CBC_SHA        ADH-AES256-SHA
428
429 =head2 Camellia ciphersuites from RFC4132, extending TLS v1.0
430
431  TLS_RSA_WITH_CAMELLIA_128_CBC_SHA      CAMELLIA128-SHA
432  TLS_RSA_WITH_CAMELLIA_256_CBC_SHA      CAMELLIA256-SHA
433
434  TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA   DH-DSS-CAMELLIA128-SHA
435  TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA   DH-DSS-CAMELLIA256-SHA
436  TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA   DH-RSA-CAMELLIA128-SHA
437  TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA   DH-RSA-CAMELLIA256-SHA
438
439  TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA  DHE-DSS-CAMELLIA128-SHA
440  TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA  DHE-DSS-CAMELLIA256-SHA
441  TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA  DHE-RSA-CAMELLIA128-SHA
442  TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA  DHE-RSA-CAMELLIA256-SHA
443
444  TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA  ADH-CAMELLIA128-SHA
445  TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA  ADH-CAMELLIA256-SHA
446
447 =head2 SEED ciphersuites from RFC4162, extending TLS v1.0
448
449  TLS_RSA_WITH_SEED_CBC_SHA              SEED-SHA
450
451  TLS_DH_DSS_WITH_SEED_CBC_SHA           DH-DSS-SEED-SHA
452  TLS_DH_RSA_WITH_SEED_CBC_SHA           DH-RSA-SEED-SHA
453
454  TLS_DHE_DSS_WITH_SEED_CBC_SHA          DHE-DSS-SEED-SHA
455  TLS_DHE_RSA_WITH_SEED_CBC_SHA          DHE-RSA-SEED-SHA
456
457  TLS_DH_anon_WITH_SEED_CBC_SHA          ADH-SEED-SHA
458
459 =head2 GOST ciphersuites from draft-chudov-cryptopro-cptls, extending TLS v1.0
460
461 Note: these ciphers require an engine which including GOST cryptographic
462 algorithms, such as the B<ccgost> engine, included in the OpenSSL distribution.
463
464  TLS_GOSTR341094_WITH_28147_CNT_IMIT GOST94-GOST89-GOST89
465  TLS_GOSTR341001_WITH_28147_CNT_IMIT GOST2001-GOST89-GOST89
466  TLS_GOSTR341094_WITH_NULL_GOSTR3411 GOST94-NULL-GOST94
467  TLS_GOSTR341001_WITH_NULL_GOSTR3411 GOST2001-NULL-GOST94
468
469 =head2 Additional Export 1024 and other cipher suites
470
471 Note: these ciphers can also be used in SSL v3.
472
473  TLS_DHE_DSS_WITH_RC4_128_SHA            DHE-DSS-RC4-SHA
474
475 =head2 Elliptic curve cipher suites.
476
477  TLS_ECDH_RSA_WITH_NULL_SHA              ECDH-RSA-NULL-SHA
478  TLS_ECDH_RSA_WITH_RC4_128_SHA           ECDH-RSA-RC4-SHA
479  TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA      ECDH-RSA-DES-CBC3-SHA
480  TLS_ECDH_RSA_WITH_AES_128_CBC_SHA       ECDH-RSA-AES128-SHA
481  TLS_ECDH_RSA_WITH_AES_256_CBC_SHA       ECDH-RSA-AES256-SHA
482  
483  TLS_ECDH_ECDSA_WITH_NULL_SHA            ECDH-ECDSA-NULL-SHA
484  TLS_ECDH_ECDSA_WITH_RC4_128_SHA         ECDH-ECDSA-RC4-SHA
485  TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA    ECDH-ECDSA-DES-CBC3-SHA
486  TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA     ECDH-ECDSA-AES128-SHA
487  TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA     ECDH-ECDSA-AES256-SHA
488  
489  TLS_ECDHE_RSA_WITH_NULL_SHA             ECDHE-RSA-NULL-SHA
490  TLS_ECDHE_RSA_WITH_RC4_128_SHA          ECDHE-RSA-RC4-SHA
491  TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA     ECDHE-RSA-DES-CBC3-SHA
492  TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA      ECDHE-RSA-AES128-SHA
493  TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA      ECDHE-RSA-AES256-SHA
494  
495  TLS_ECDHE_ECDSA_WITH_NULL_SHA           ECDHE-ECDSA-NULL-SHA
496  TLS_ECDHE_ECDSA_WITH_RC4_128_SHA        ECDHE-ECDSA-RC4-SHA
497  TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA   ECDHE-ECDSA-DES-CBC3-SHA
498  TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA    ECDHE-ECDSA-AES128-SHA
499  TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA    ECDHE-ECDSA-AES256-SHA
500  
501  TLS_ECDH_anon_WITH_NULL_SHA             AECDH-NULL-SHA
502  TLS_ECDH_anon_WITH_RC4_128_SHA          AECDH-RC4-SHA
503  TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA     AECDH-DES-CBC3-SHA
504  TLS_ECDH_anon_WITH_AES_128_CBC_SHA      AECDH-AES128-SHA
505  TLS_ECDH_anon_WITH_AES_256_CBC_SHA      AECDH-AES256-SHA
506
507 =head2 TLS v1.2 cipher suites
508
509  TLS_RSA_WITH_NULL_SHA256                  NULL-SHA256
510
511  TLS_RSA_WITH_AES_128_CBC_SHA256           AES128-SHA256
512  TLS_RSA_WITH_AES_256_CBC_SHA256           AES256-SHA256
513  TLS_RSA_WITH_AES_128_GCM_SHA256           AES128-GCM-SHA256
514  TLS_RSA_WITH_AES_256_GCM_SHA384           AES256-GCM-SHA384
515
516  TLS_DH_RSA_WITH_AES_128_CBC_SHA256        DH-RSA-AES128-SHA256
517  TLS_DH_RSA_WITH_AES_256_CBC_SHA256        DH-RSA-AES256-SHA256
518  TLS_DH_RSA_WITH_AES_128_GCM_SHA256        DH-RSA-AES128-GCM-SHA256
519  TLS_DH_RSA_WITH_AES_256_GCM_SHA384        DH-RSA-AES256-GCM-SHA384
520
521  TLS_DH_DSS_WITH_AES_128_CBC_SHA256        DH-DSS-AES128-SHA256
522  TLS_DH_DSS_WITH_AES_256_CBC_SHA256        DH-DSS-AES256-SHA256
523  TLS_DH_DSS_WITH_AES_128_GCM_SHA256        DH-DSS-AES128-GCM-SHA256
524  TLS_DH_DSS_WITH_AES_256_GCM_SHA384        DH-DSS-AES256-GCM-SHA384
525
526  TLS_DHE_RSA_WITH_AES_128_CBC_SHA256       DHE-RSA-AES128-SHA256
527  TLS_DHE_RSA_WITH_AES_256_CBC_SHA256       DHE-RSA-AES256-SHA256
528  TLS_DHE_RSA_WITH_AES_128_GCM_SHA256       DHE-RSA-AES128-GCM-SHA256
529  TLS_DHE_RSA_WITH_AES_256_GCM_SHA384       DHE-RSA-AES256-GCM-SHA384
530
531  TLS_DHE_DSS_WITH_AES_128_CBC_SHA256       DHE-DSS-AES128-SHA256
532  TLS_DHE_DSS_WITH_AES_256_CBC_SHA256       DHE-DSS-AES256-SHA256
533  TLS_DHE_DSS_WITH_AES_128_GCM_SHA256       DHE-DSS-AES128-GCM-SHA256
534  TLS_DHE_DSS_WITH_AES_256_GCM_SHA384       DHE-DSS-AES256-GCM-SHA384
535
536  TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256      ECDH-RSA-AES128-SHA256
537  TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384      ECDH-RSA-AES256-SHA384
538  TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256      ECDH-RSA-AES128-GCM-SHA256
539  TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384      ECDH-RSA-AES256-GCM-SHA384
540
541  TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256    ECDH-ECDSA-AES128-SHA256
542  TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384    ECDH-ECDSA-AES256-SHA384
543  TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256    ECDH-ECDSA-AES128-GCM-SHA256
544  TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384    ECDH-ECDSA-AES256-GCM-SHA384
545
546  TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256     ECDHE-RSA-AES128-SHA256
547  TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384     ECDHE-RSA-AES256-SHA384
548  TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256     ECDHE-RSA-AES128-GCM-SHA256
549  TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384     ECDHE-RSA-AES256-GCM-SHA384
550
551  TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256   ECDHE-ECDSA-AES128-SHA256
552  TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDHE-ECDSA-AES256-SHA384
553  TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDHE-ECDSA-AES128-GCM-SHA256
554  TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDHE-ECDSA-AES256-GCM-SHA384
555
556  TLS_DH_anon_WITH_AES_128_CBC_SHA256       ADH-AES128-SHA256
557  TLS_DH_anon_WITH_AES_256_CBC_SHA256       ADH-AES256-SHA256
558  TLS_DH_anon_WITH_AES_128_GCM_SHA256       ADH-AES128-GCM-SHA256
559  TLS_DH_anon_WITH_AES_256_GCM_SHA384       ADH-AES256-GCM-SHA384
560
561  RSA_WITH_AES_128_CCM                      AES128-CCM
562  RSA_WITH_AES_256_CCM                      AES256-CCM
563  DHE_RSA_WITH_AES_128_CCM                  DHE-RSA-AES128-CCM
564  DHE_RSA_WITH_AES_256_CCM                  DHE-RSA-AES256-CCM
565  RSA_WITH_AES_128_CCM_8                    AES128-CCM8
566  RSA_WITH_AES_256_CCM_8                    AES256-CCM8
567  DHE_RSA_WITH_AES_128_CCM_8                DHE-RSA-AES128-CCM8
568  DHE_RSA_WITH_AES_256_CCM_8                DHE-RSA-AES256-CCM8
569  ECDHE_ECDSA_WITH_AES_128_CCM              ECDHE-ECDSA-AES128-CCM
570  ECDHE_ECDSA_WITH_AES_256_CCM              ECDHE-ECDSA-AES256-CCM
571  ECDHE_ECDSA_WITH_AES_128_CCM_8            ECDHE-ECDSA-AES128-CCM8
572  ECDHE_ECDSA_WITH_AES_256_CCM_8            ECDHE-ECDSA-AES256-CCM8
573
574 =head2 Camellia HMAC-Based ciphersuites from RFC6367, extending TLS v1.2
575
576  TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 ECDHE-ECDSA-CAMELLIA128-SHA256
577  TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 ECDHE-ECDSA-CAMELLIA256-SHA384
578  TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256  ECDH-ECDSA-CAMELLIA128-SHA256
579  TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384  ECDH-ECDSA-CAMELLIA256-SHA384
580  TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256   ECDHE-RSA-CAMELLIA128-SHA256
581  TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384   ECDHE-RSA-CAMELLIA256-SHA384
582  TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256    ECDH-RSA-CAMELLIA128-SHA256
583  TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384    ECDH-RSA-CAMELLIA256-SHA384
584
585 =head2 Pre shared keying (PSK) ciphersuites
586
587  PSK_WITH_NULL_SHA                         PSK-NULL-SHA
588  DHE_PSK_WITH_NULL_SHA                     DHE-PSK-NULL-SHA
589  RSA_PSK_WITH_NULL_SHA                     RSA-PSK-NULL-SHA
590
591  PSK_WITH_RC4_128_SHA                      PSK-RC4-SHA
592  PSK_WITH_3DES_EDE_CBC_SHA                 PSK-3DES-EDE-CBC-SHA
593  PSK_WITH_AES_128_CBC_SHA                  PSK-AES128-CBC-SHA
594  PSK_WITH_AES_256_CBC_SHA                  PSK-AES256-CBC-SHA
595
596  DHE_PSK_WITH_RC4_128_SHA                  DHE-PSK-RC4-SHA
597  DHE_PSK_WITH_3DES_EDE_CBC_SHA             DHE-PSK-3DES-EDE-CBC-SHA
598  DHE_PSK_WITH_AES_128_CBC_SHA              DHE-PSK-AES128-CBC-SHA
599  DHE_PSK_WITH_AES_256_CBC_SHA              DHE-PSK-AES256-CBC-SHA
600
601  RSA_PSK_WITH_RC4_128_SHA                  RSA-PSK-RC4-SHA
602  RSA_PSK_WITH_3DES_EDE_CBC_SHA             RSA-PSK-3DES-EDE-CBC-SHA
603  RSA_PSK_WITH_AES_128_CBC_SHA              RSA-PSK-AES128-CBC-SHA
604  RSA_PSK_WITH_AES_256_CBC_SHA              RSA-PSK-AES256-CBC-SHA
605
606  PSK_WITH_AES_128_GCM_SHA256               PSK-AES128-GCM-SHA256
607  PSK_WITH_AES_256_GCM_SHA384               PSK-AES256-GCM-SHA384
608  DHE_PSK_WITH_AES_128_GCM_SHA256           DHE-PSK-AES128-GCM-SHA256
609  DHE_PSK_WITH_AES_256_GCM_SHA384           DHE-PSK-AES256-GCM-SHA384
610  RSA_PSK_WITH_AES_128_GCM_SHA256           RSA-PSK-AES128-GCM-SHA256
611  RSA_PSK_WITH_AES_256_GCM_SHA384           RSA-PSK-AES256-GCM-SHA384
612
613  PSK_WITH_AES_128_CBC_SHA256               PSK-AES128-CBC-SHA256
614  PSK_WITH_AES_256_CBC_SHA384               PSK-AES256-CBC-SHA384
615  PSK_WITH_NULL_SHA256                      PSK-NULL-SHA256
616  PSK_WITH_NULL_SHA384                      PSK-NULL-SHA384
617  DHE_PSK_WITH_AES_128_CBC_SHA256           DHE-PSK-AES128-CBC-SHA256
618  DHE_PSK_WITH_AES_256_CBC_SHA384           DHE-PSK-AES256-CBC-SHA384
619  DHE_PSK_WITH_NULL_SHA256                  DHE-PSK-NULL-SHA256
620  DHE_PSK_WITH_NULL_SHA384                  DHE-PSK-NULL-SHA384
621  RSA_PSK_WITH_AES_128_CBC_SHA256           RSA-PSK-AES128-CBC-SHA256
622  RSA_PSK_WITH_AES_256_CBC_SHA384           RSA-PSK-AES256-CBC-SHA384
623  RSA_PSK_WITH_NULL_SHA256                  RSA-PSK-NULL-SHA256
624  RSA_PSK_WITH_NULL_SHA384                  RSA-PSK-NULL-SHA384
625  PSK_WITH_AES_128_GCM_SHA256               PSK-AES128-GCM-SHA256
626  PSK_WITH_AES_256_GCM_SHA384               PSK-AES256-GCM-SHA384
627
628  ECDHE_PSK_WITH_RC4_128_SHA                ECDHE-PSK-RC4-SHA
629  ECDHE_PSK_WITH_3DES_EDE_CBC_SHA           ECDHE-PSK-3DES-EDE-CBC-SHA
630  ECDHE_PSK_WITH_AES_128_CBC_SHA            ECDHE-PSK-AES128-CBC-SHA
631  ECDHE_PSK_WITH_AES_256_CBC_SHA            ECDHE-PSK-AES256-CBC-SHA
632  ECDHE_PSK_WITH_AES_128_CBC_SHA256         ECDHE-PSK-AES128-CBC-SHA256
633  ECDHE_PSK_WITH_AES_256_CBC_SHA384         ECDHE-PSK-AES256-CBC-SHA384
634  ECDHE_PSK_WITH_NULL_SHA                   ECDHE-PSK-NULL-SHA
635  ECDHE_PSK_WITH_NULL_SHA256                ECDHE-PSK-NULL-SHA256
636  ECDHE_PSK_WITH_NULL_SHA384                ECDHE-PSK-NULL-SHA384
637
638  PSK_WITH_CAMELLIA_128_CBC_SHA256          PSK-CAMELLIA128-SHA256
639  PSK_WITH_CAMELLIA_256_CBC_SHA384          PSK-CAMELLIA256-SHA384
640
641  DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256      DHE-PSK-CAMELLIA128-SHA256
642  DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384      DHE-PSK-CAMELLIA256-SHA384
643
644  RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256      RSA-PSK-CAMELLIA128-SHA256
645  RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384      RSA-PSK-CAMELLIA256-SHA384
646
647  ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256    ECDHE-PSK-CAMELLIA128-SHA256
648  ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384    ECDHE-PSK-CAMELLIA256-SHA384
649
650  PSK_WITH_AES_128_CCM                      PSK-AES128-CCM
651  PSK_WITH_AES_256_CCM                      PSK-AES256-CCM
652  DHE_PSK_WITH_AES_128_CCM                  DHE-PSK-AES128-CCM
653  DHE_PSK_WITH_AES_256_CCM                  DHE-PSK-AES256-CCM
654  PSK_WITH_AES_128_CCM_8                    PSK-AES128-CCM8
655  PSK_WITH_AES_256_CCM_8                    PSK-AES256-CCM8
656  DHE_PSK_WITH_AES_128_CCM_8                DHE-PSK-AES128-CCM8
657  DHE_PSK_WITH_AES_256_CCM_8                DHE-PSK-AES256-CCM8
658
659 =head1 NOTES
660
661 Some compiled versions of OpenSSL may not include all the ciphers
662 listed here because some ciphers were excluded at compile time.
663
664 =head1 EXAMPLES
665
666 Verbose listing of all OpenSSL ciphers including NULL ciphers:
667
668  openssl ciphers -v 'ALL:eNULL'
669
670 Include all ciphers except NULL and anonymous DH then sort by
671 strength:
672
673  openssl ciphers -v 'ALL:!ADH:@STRENGTH'
674
675 Include all ciphers except ones with no encryption (eNULL) or no
676 authentication (aNULL):
677
678  openssl ciphers -v 'ALL:!aNULL'
679
680 Include only 3DES ciphers and then place RSA ciphers last:
681
682  openssl ciphers -v '3DES:+RSA'
683
684 Include all RC4 ciphers but leave out those without authentication:
685
686  openssl ciphers -v 'RC4:!COMPLEMENTOFDEFAULT'
687
688 Include all ciphers with RSA authentication but leave out ciphers without
689 encryption.
690
691  openssl ciphers -v 'RSA:!COMPLEMENTOFALL'
692
693 Set security level to 2 and display all ciphers consistent with level 2:
694
695  openssl ciphers -s -v 'ALL:@SECLEVEL=2'
696
697 =head1 SEE ALSO
698
699 L<s_client(1)>, L<s_server(1)>, L<ssl(3)>
700
701 =head1 HISTORY
702
703 The B<-V> option for the B<ciphers> command was added in OpenSSL 1.0.0.
704
705 =cut