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<-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<-s>]
  19 [B<-psk>]
  20 [B<-stdname>]
  21 [B<cipherlist>]
  22
  23 =head1 DESCRIPTION
  24
  25 The B<ciphers> command converts textual OpenSSL cipher lists into ordered
  26 SSL cipher preference lists. It can be used as a test tool to determine
  27 the appropriate cipherlist.
  28
  29 =head1 COMMAND OPTIONS
  30
  31 =over 4
  32
  33 =item B<-help>
  34
  35 Print out a usage message.
  36
  37 =item B<-s>
  38
  39 Only list supported ciphers: those consistent with the security level. This
  40 is the actual cipher list an application will support. If this option is
  41 not used then ciphers excluded by the security level will still be listed.
  42
  43 =item B<-psk>
  44
  45 When combined with B<-s> includes cipher suites which require PSK.
  46
  47 =item B<-v>
  48
  49 Verbose output: For each ciphersuite, list details as provided by
  50 L<SSL_CIPHER_description(3)>.
  51
  52 =item B<-V>
  53
  54 Like B<-v>, but include the official cipher suite values in hex.
  55
  56 =item B<-ssl3>
  57
  58 List the ciphers which would be used if SSL v3 was negotiated.
  59
  60 =item B<-tls1>
  61
  62 List the ciphers which would be used if TLS v1.0 was negotiated.
  63
  64 =item B<-tls1_1>
  65
  66 List the ciphers which would be used if TLS v1.1 was negotiated.
  67
  68 =item B<-tls1_2>
  69
  70 List the ciphers which would be used if TLS v1.2 was negotiated.
  71
  72 =item B<-stdname>
  73
  74 precede each ciphersuite by its standard name: only available is OpenSSL
  75 is built with tracing enabled (B<enable-ssl-trace> argument to Configure).
  76
  77 =item B<cipherlist>
  78
  79 a cipher list to convert to a cipher preference list. If it is not included
  80 then the default cipher list will be used. The format is described below.
  81
  82 =back
  83
  84 =head1 CIPHER LIST FORMAT
  85
  86 The cipher list consists of one or more I<cipher strings> separated by colons.
  87 Commas or spaces are also acceptable separators but colons are normally used.
  88
  89 The actual cipher string can take several different forms.
  90
  91 It can consist of a single cipher suite such as B<RC4-SHA>.
  92
  93 It can represent a list of cipher suites containing a certain algorithm, or
  94 cipher suites of a certain type. For example B<SHA1> represents all ciphers
  95 suites using the digest algorithm SHA1 and B<SSLv3> represents all SSL v3
  96 algorithms.
  97
  98 Lists of cipher suites can be combined in a single cipher string using the
  99 B<+> character. This is used as a logical B<and> operation. For example
 100 B<SHA1+DES> represents all cipher suites containing the SHA1 B<and> the DES
 101 algorithms.
 102
 103 Each cipher string can be optionally preceded by the characters B<!>,
 104 B<-> or B<+>.
 105
 106 If B<!> is used then the ciphers are permanently deleted from the list.
 107 The ciphers deleted can never reappear in the list even if they are
 108 explicitly stated.
 109
 110 If B<-> is used then the ciphers are deleted from the list, but some or
 111 all of the ciphers can be added again by later options.
 112
 113 If B<+> is used then the ciphers are moved to the end of the list. This
 114 option doesn't add any new ciphers it just moves matching existing ones.
 115
 116 If none of these characters is present then the string is just interpreted
 117 as a list of ciphers to be appended to the current preference list. If the
 118 list includes any ciphers already present they will be ignored: that is they
 119 will not moved to the end of the list.
 120
 121 The cipher string B<@STRENGTH> can be used at any point to sort the current
 122 cipher list in order of encryption algorithm key length.
 123
 124 The cipher string B<@SECLEVEL=n> can be used at any point to set the security
 125 level to B<n>.
 126
 127 =head1 CIPHER STRINGS
 128
 129 The following is a list of all permitted cipher strings and their meanings.
 130
 131 =over 4
 132
 133 =item B<DEFAULT>
 134
 135 the default cipher list. This is determined at compile time and
 136 is B<ALL:!COMPLEMENTOFDEFAULT:!eNULL>. This must be the first cipher
 137 string specified.
 138
 139 =item B<COMPLEMENTOFDEFAULT>
 140
 141 the ciphers included in B<ALL>, but not enabled by default. Currently
 142 this includes all RC4, DES, RC2 and anonymous ciphers. Note that this rule does
 143 not cover B<eNULL>, which is not included by B<ALL> (use B<COMPLEMENTOFALL> if
 144 necessary).
 145
 146 =item B<ALL>
 147
 148 all cipher suites except the B<eNULL> ciphers which must be explicitly enabled;
 149 as of OpenSSL, the B<ALL> cipher suites are reasonably ordered by default
 150
 151 =item B<COMPLEMENTOFALL>
 152
 153 the cipher suites not enabled by B<ALL>, currently being B<eNULL>.
 154
 155 =item B<HIGH>
 156
 157 "high" encryption cipher suites. This currently means those with key lengths
 158 larger than 128 bits, and some cipher suites with 128-bit keys.
 159
 160 =item B<MEDIUM>
 161
 162 "medium" encryption cipher suites, currently some of those using 128 bit
 163 encryption.
 164
 165 =item B<LOW>
 166
 167 "low" encryption cipher suites, currently those using 64 or 56 bit
 168 encryption algorithms but excluding export cipher suites.  All these
 169 ciphersuites have been removed as of OpenSSL 1.1.0.
 170
 171 =item B<eNULL>, B<NULL>
 172
 173 the "NULL" ciphers that is those offering no encryption. Because these offer no
 174 encryption at all and are a security risk they are disabled unless explicitly
 175 included.
 176
 177 =item B<aNULL>
 178
 179 the cipher suites offering no authentication. This is currently the anonymous
 180 DH algorithms and anonymous ECDH algorithms. These cipher suites are vulnerable
 181 to a "man in the middle" attack and so their use is normally discouraged.
 182
 183 =item B<kRSA>, B<aRSA>, B<RSA>
 184
 185 cipher suites using RSA key exchange, authentication or either respectively.
 186
 187 =item B<kDHr>, B<kDHd>, B<kDH>
 188
 189 cipher suites using DH key agreement and DH certificates signed by CAs with RSA
 190 and DSS keys or either respectively.
 191
 192 =item B<kDHE>, B<kEDH>
 193
 194 cipher suites using ephemeral DH key agreement, including anonymous cipher
 195 suites.
 196
 197 =item B<DHE>, B<EDH>
 198
 199 cipher suites using authenticated ephemeral DH key agreement.
 200
 201 =item B<ADH>
 202
 203 anonymous DH cipher suites, note that this does not include anonymous Elliptic
 204 Curve DH (ECDH) cipher suites.
 205
 206 =item B<DH>
 207
 208 cipher suites using DH, including anonymous DH, ephemeral DH and fixed DH.
 209
 210 =item B<kECDHr>, B<kECDHe>, B<kECDH>
 211
 212 cipher suites using fixed ECDH key agreement signed by CAs with RSA and ECDSA
 213 keys or either respectively.
 214
 215 =item B<kEECDH>, B<kECDHE>
 216
 217 cipher suites using ephemeral ECDH key agreement, including anonymous
 218 cipher suites.
 219
 220 =item B<ECDHE>, B<EECDH>
 221
 222 cipher suites using authenticated ephemeral ECDH key agreement.
 223
 224 =item B<AECDH>
 225
 226 anonymous Elliptic Curve Diffie Hellman cipher suites.
 227
 228 =item B<ECDH>
 229
 230 cipher suites using ECDH key exchange, including anonymous, ephemeral and
 231 fixed ECDH.
 232
 233 =item B<aDSS>, B<DSS>
 234
 235 cipher suites using DSS authentication, i.e. the certificates carry DSS keys.
 236
 237 =item B<aDH>
 238
 239 cipher suites effectively using DH authentication, i.e. the certificates carry
 240 DH keys.
 241
 242 =item B<aECDH>
 243
 244 cipher suites effectively using ECDH authentication, i.e. the certificates
 245 carry ECDH keys.
 246
 247 =item B<aECDSA>, B<ECDSA>
 248
 249 cipher suites using ECDSA authentication, i.e. the certificates carry ECDSA
 250 keys.
 251
 252 =item B<TLSv1.2>, B<TLSv1.0>, B<SSLv3>
 253
 254 Lists ciphersuites which are only supported in at least TLS v1.2, TLS v1.0
 255 or SSL v3.0 respectively. Note: there are no ciphersuites specific to TLS v1.1.
 256 Since this is only the minimum version if, for example, TLS v1.0 is supported
 257 then both TLS v1.0 and SSL v3.0 ciphersuites are included.
 258
 259 Note: these cipher strings B<do not> change the negotiated version of SSL or
 260 TLS only the list of cipher suites.
 261
 262 =item B<AES128>, B<AES256>, B<AES>
 263
 264 cipher suites using 128 bit AES, 256 bit AES or either 128 or 256 bit AES.
 265
 266 =item B<AESGCM>
 267
 268 AES in Galois Counter Mode (GCM): these ciphersuites are only supported
 269 in TLS v1.2.
 270
 271 =item B<AESCCM>, B<AESCCM8>
 272
 273 AES in Cipher Block Chaining - Message Authentication Mode (CCM): these
 274 ciphersuites are only supported in TLS v1.2. B<AESCCM> references CCM
 275 cipher suites using both 16 and 8 octet Integrity Check Value (ICV)
 276 while B<AESCCM8> only references 8 octet ICV.
 277
 278 =item B<CAMELLIA128>, B<CAMELLIA256>, B<CAMELLIA>
 279
 280 cipher suites using 128 bit CAMELLIA, 256 bit CAMELLIA or either 128 or 256 bit
 281 CAMELLIA.
 282
 283 =item B<CHACHA20>
 284
 285 cipher suites using ChaCha20.
 286
 287 =item B<3DES>
 288
 289 cipher suites using triple DES.
 290
 291 =item B<DES>
 292
 293 cipher suites using DES (not triple DES).
 294
 295 =item B<RC4>
 296
 297 cipher suites using RC4.
 298
 299 =item B<RC2>
 300
 301 cipher suites using RC2.
 302
 303 =item B<IDEA>
 304
 305 cipher suites using IDEA.
 306
 307 =item B<SEED>
 308
 309 cipher suites using SEED.
 310
 311 =item B<MD5>
 312
 313 cipher suites using MD5.
 314
 315 =item B<SHA1>, B<SHA>
 316
 317 cipher suites using SHA1.
 318
 319 =item B<SHA256>, B<SHA384>
 320
 321 ciphersuites using SHA256 or SHA384.
 322
 323 =item B<aGOST>
 324
 325 cipher suites using GOST R 34.10 (either 2001 or 94) for authentication
 326 (needs an engine supporting GOST algorithms).
 327
 328 =item B<aGOST01>
 329
 330 cipher suites using GOST R 34.10-2001 authentication.
 331
 332 =item B<kGOST>
 333
 334 cipher suites, using VKO 34.10 key exchange, specified in the RFC 4357.
 335
 336 =item B<GOST94>
 337
 338 cipher suites, using HMAC based on GOST R 34.11-94.
 339
 340 =item B<GOST89MAC>
 341
 342 cipher suites using GOST 28147-89 MAC B<instead of> HMAC.
 343
 344 =item B<PSK>
 345
 346 all cipher suites using pre-shared keys (PSK).
 347
 348 =item B<kPSK>, B<kECDHEPSK>, B<kDHEPSK>, B<kRSAPSK>
 349
 350 cipher suites using PSK key exchange, ECDHE_PSK, DHE_PSK or RSA_PSK.
 351
 352 =item B<aPSK>
 353
 354 cipher suites using PSK authentication (currently all PSK modes apart from
 355 RSA_PSK).
 356
 357 =item B<SUITEB128>, B<SUITEB128ONLY>, B<SUITEB192>
 358
 359 enables suite B mode operation using 128 (permitting 192 bit mode by peer)
 360 128 bit (not permitting 192 bit by peer) or 192 bit level of security
 361 respectively. If used these cipherstrings should appear first in the cipher
 362 list and anything after them is ignored. Setting Suite B mode has additional
 363 consequences required to comply with RFC6460. In particular the supported
 364 signature algorithms is reduced to support only ECDSA and SHA256 or SHA384,
 365 only the elliptic curves P-256 and P-384 can be used and only the two suite B
 366 compliant ciphersuites (ECDHE-ECDSA-AES128-GCM-SHA256 and
 367 ECDHE-ECDSA-AES256-GCM-SHA384) are permissible.
 368
 369 =back
 370
 371 =head1 CIPHER SUITE NAMES
 372
 373 The following lists give the SSL or TLS cipher suites names from the
 374 relevant specification and their OpenSSL equivalents. It should be noted,
 375 that several cipher suite names do not include the authentication used,
 376 e.g. DES-CBC3-SHA. In these cases, RSA authentication is used.
 377
 378 =head2 SSL v3.0 cipher suites.
 379
 380  SSL_RSA_WITH_NULL_MD5                   NULL-MD5
 381  SSL_RSA_WITH_NULL_SHA                   NULL-SHA
 382  SSL_RSA_WITH_RC4_128_MD5                RC4-MD5
 383  SSL_RSA_WITH_RC4_128_SHA                RC4-SHA
 384  SSL_RSA_WITH_IDEA_CBC_SHA               IDEA-CBC-SHA
 385  SSL_RSA_WITH_3DES_EDE_CBC_SHA           DES-CBC3-SHA
 386
 387  SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA        DH-DSS-DES-CBC3-SHA
 388  SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA        DH-RSA-DES-CBC3-SHA
 389  SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA       DHE-DSS-DES-CBC3-SHA
 390  SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA       DHE-RSA-DES-CBC3-SHA
 391
 392  SSL_DH_anon_WITH_RC4_128_MD5            ADH-RC4-MD5
 393  SSL_DH_anon_WITH_3DES_EDE_CBC_SHA       ADH-DES-CBC3-SHA
 394
 395  SSL_FORTEZZA_KEA_WITH_NULL_SHA          Not implemented.
 396  SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA  Not implemented.
 397  SSL_FORTEZZA_KEA_WITH_RC4_128_SHA       Not implemented.
 398
 399 =head2 TLS v1.0 cipher suites.
 400
 401  TLS_RSA_WITH_NULL_MD5                   NULL-MD5
 402  TLS_RSA_WITH_NULL_SHA                   NULL-SHA
 403  TLS_RSA_WITH_RC4_128_MD5                RC4-MD5
 404  TLS_RSA_WITH_RC4_128_SHA                RC4-SHA
 405  TLS_RSA_WITH_IDEA_CBC_SHA               IDEA-CBC-SHA
 406  TLS_RSA_WITH_3DES_EDE_CBC_SHA           DES-CBC3-SHA
 407
 408  TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA        Not implemented.
 409  TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA        Not implemented.
 410  TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA       DHE-DSS-DES-CBC3-SHA
 411  TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA       DHE-RSA-DES-CBC3-SHA
 412
 413  TLS_DH_anon_WITH_RC4_128_MD5            ADH-RC4-MD5
 414  TLS_DH_anon_WITH_3DES_EDE_CBC_SHA       ADH-DES-CBC3-SHA
 415
 416 =head2 AES ciphersuites from RFC3268, extending TLS v1.0
 417
 418  TLS_RSA_WITH_AES_128_CBC_SHA            AES128-SHA
 419  TLS_RSA_WITH_AES_256_CBC_SHA            AES256-SHA
 420
 421  TLS_DH_DSS_WITH_AES_128_CBC_SHA         DH-DSS-AES128-SHA
 422  TLS_DH_DSS_WITH_AES_256_CBC_SHA         DH-DSS-AES256-SHA
 423  TLS_DH_RSA_WITH_AES_128_CBC_SHA         DH-RSA-AES128-SHA
 424  TLS_DH_RSA_WITH_AES_256_CBC_SHA         DH-RSA-AES256-SHA
 425
 426  TLS_DHE_DSS_WITH_AES_128_CBC_SHA        DHE-DSS-AES128-SHA
 427  TLS_DHE_DSS_WITH_AES_256_CBC_SHA        DHE-DSS-AES256-SHA
 428  TLS_DHE_RSA_WITH_AES_128_CBC_SHA        DHE-RSA-AES128-SHA
 429  TLS_DHE_RSA_WITH_AES_256_CBC_SHA        DHE-RSA-AES256-SHA
 430
 431  TLS_DH_anon_WITH_AES_128_CBC_SHA        ADH-AES128-SHA
 432  TLS_DH_anon_WITH_AES_256_CBC_SHA        ADH-AES256-SHA
 433
 434 =head2 Camellia ciphersuites from RFC4132, extending TLS v1.0
 435
 436  TLS_RSA_WITH_CAMELLIA_128_CBC_SHA      CAMELLIA128-SHA
 437  TLS_RSA_WITH_CAMELLIA_256_CBC_SHA      CAMELLIA256-SHA
 438
 439  TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA   DH-DSS-CAMELLIA128-SHA
 440  TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA   DH-DSS-CAMELLIA256-SHA
 441  TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA   DH-RSA-CAMELLIA128-SHA
 442  TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA   DH-RSA-CAMELLIA256-SHA
 443
 444  TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA  DHE-DSS-CAMELLIA128-SHA
 445  TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA  DHE-DSS-CAMELLIA256-SHA
 446  TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA  DHE-RSA-CAMELLIA128-SHA
 447  TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA  DHE-RSA-CAMELLIA256-SHA
 448
 449  TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA  ADH-CAMELLIA128-SHA
 450  TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA  ADH-CAMELLIA256-SHA
 451
 452 =head2 SEED ciphersuites from RFC4162, extending TLS v1.0
 453
 454  TLS_RSA_WITH_SEED_CBC_SHA              SEED-SHA
 455
 456  TLS_DH_DSS_WITH_SEED_CBC_SHA           DH-DSS-SEED-SHA
 457  TLS_DH_RSA_WITH_SEED_CBC_SHA           DH-RSA-SEED-SHA
 458
 459  TLS_DHE_DSS_WITH_SEED_CBC_SHA          DHE-DSS-SEED-SHA
 460  TLS_DHE_RSA_WITH_SEED_CBC_SHA          DHE-RSA-SEED-SHA
 461
 462  TLS_DH_anon_WITH_SEED_CBC_SHA          ADH-SEED-SHA
 463
 464 =head2 GOST ciphersuites from draft-chudov-cryptopro-cptls, extending TLS v1.0
 465
 466 Note: these ciphers require an engine which including GOST cryptographic
 467 algorithms, such as the B<ccgost> engine, included in the OpenSSL distribution.
 468
 469  TLS_GOSTR341094_WITH_28147_CNT_IMIT GOST94-GOST89-GOST89
 470  TLS_GOSTR341001_WITH_28147_CNT_IMIT GOST2001-GOST89-GOST89
 471  TLS_GOSTR341094_WITH_NULL_GOSTR3411 GOST94-NULL-GOST94
 472  TLS_GOSTR341001_WITH_NULL_GOSTR3411 GOST2001-NULL-GOST94
 473
 474 =head2 Additional Export 1024 and other cipher suites
 475
 476 Note: these ciphers can also be used in SSL v3.
 477
 478  TLS_DHE_DSS_WITH_RC4_128_SHA            DHE-DSS-RC4-SHA
 479
 480 =head2 Elliptic curve cipher suites.
 481
 482  TLS_ECDH_RSA_WITH_NULL_SHA              ECDH-RSA-NULL-SHA
 483  TLS_ECDH_RSA_WITH_RC4_128_SHA           ECDH-RSA-RC4-SHA
 484  TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA      ECDH-RSA-DES-CBC3-SHA
 485  TLS_ECDH_RSA_WITH_AES_128_CBC_SHA       ECDH-RSA-AES128-SHA
 486  TLS_ECDH_RSA_WITH_AES_256_CBC_SHA       ECDH-RSA-AES256-SHA
 487
 488  TLS_ECDH_ECDSA_WITH_NULL_SHA            ECDH-ECDSA-NULL-SHA
 489  TLS_ECDH_ECDSA_WITH_RC4_128_SHA         ECDH-ECDSA-RC4-SHA
 490  TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA    ECDH-ECDSA-DES-CBC3-SHA
 491  TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA     ECDH-ECDSA-AES128-SHA
 492  TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA     ECDH-ECDSA-AES256-SHA
 493
 494  TLS_ECDHE_RSA_WITH_NULL_SHA             ECDHE-RSA-NULL-SHA
 495  TLS_ECDHE_RSA_WITH_RC4_128_SHA          ECDHE-RSA-RC4-SHA
 496  TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA     ECDHE-RSA-DES-CBC3-SHA
 497  TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA      ECDHE-RSA-AES128-SHA
 498  TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA      ECDHE-RSA-AES256-SHA
 499
 500  TLS_ECDHE_ECDSA_WITH_NULL_SHA           ECDHE-ECDSA-NULL-SHA
 501  TLS_ECDHE_ECDSA_WITH_RC4_128_SHA        ECDHE-ECDSA-RC4-SHA
 502  TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA   ECDHE-ECDSA-DES-CBC3-SHA
 503  TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA    ECDHE-ECDSA-AES128-SHA
 504  TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA    ECDHE-ECDSA-AES256-SHA
 505
 506  TLS_ECDH_anon_WITH_NULL_SHA             AECDH-NULL-SHA
 507  TLS_ECDH_anon_WITH_RC4_128_SHA          AECDH-RC4-SHA
 508  TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA     AECDH-DES-CBC3-SHA
 509  TLS_ECDH_anon_WITH_AES_128_CBC_SHA      AECDH-AES128-SHA
 510  TLS_ECDH_anon_WITH_AES_256_CBC_SHA      AECDH-AES256-SHA
 511
 512 =head2 TLS v1.2 cipher suites
 513
 514  TLS_RSA_WITH_NULL_SHA256                  NULL-SHA256
 515
 516  TLS_RSA_WITH_AES_128_CBC_SHA256           AES128-SHA256
 517  TLS_RSA_WITH_AES_256_CBC_SHA256           AES256-SHA256
 518  TLS_RSA_WITH_AES_128_GCM_SHA256           AES128-GCM-SHA256
 519  TLS_RSA_WITH_AES_256_GCM_SHA384           AES256-GCM-SHA384
 520
 521  TLS_DH_RSA_WITH_AES_128_CBC_SHA256        DH-RSA-AES128-SHA256
 522  TLS_DH_RSA_WITH_AES_256_CBC_SHA256        DH-RSA-AES256-SHA256
 523  TLS_DH_RSA_WITH_AES_128_GCM_SHA256        DH-RSA-AES128-GCM-SHA256
 524  TLS_DH_RSA_WITH_AES_256_GCM_SHA384        DH-RSA-AES256-GCM-SHA384
 525
 526  TLS_DH_DSS_WITH_AES_128_CBC_SHA256        DH-DSS-AES128-SHA256
 527  TLS_DH_DSS_WITH_AES_256_CBC_SHA256        DH-DSS-AES256-SHA256
 528  TLS_DH_DSS_WITH_AES_128_GCM_SHA256        DH-DSS-AES128-GCM-SHA256
 529  TLS_DH_DSS_WITH_AES_256_GCM_SHA384        DH-DSS-AES256-GCM-SHA384
 530
 531  TLS_DHE_RSA_WITH_AES_128_CBC_SHA256       DHE-RSA-AES128-SHA256
 532  TLS_DHE_RSA_WITH_AES_256_CBC_SHA256       DHE-RSA-AES256-SHA256
 533  TLS_DHE_RSA_WITH_AES_128_GCM_SHA256       DHE-RSA-AES128-GCM-SHA256
 534  TLS_DHE_RSA_WITH_AES_256_GCM_SHA384       DHE-RSA-AES256-GCM-SHA384
 535
 536  TLS_DHE_DSS_WITH_AES_128_CBC_SHA256       DHE-DSS-AES128-SHA256
 537  TLS_DHE_DSS_WITH_AES_256_CBC_SHA256       DHE-DSS-AES256-SHA256
 538  TLS_DHE_DSS_WITH_AES_128_GCM_SHA256       DHE-DSS-AES128-GCM-SHA256
 539  TLS_DHE_DSS_WITH_AES_256_GCM_SHA384       DHE-DSS-AES256-GCM-SHA384
 540
 541  TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256      ECDH-RSA-AES128-SHA256
 542  TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384      ECDH-RSA-AES256-SHA384
 543  TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256      ECDH-RSA-AES128-GCM-SHA256
 544  TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384      ECDH-RSA-AES256-GCM-SHA384
 545
 546  TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256    ECDH-ECDSA-AES128-SHA256
 547  TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384    ECDH-ECDSA-AES256-SHA384
 548  TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256    ECDH-ECDSA-AES128-GCM-SHA256
 549  TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384    ECDH-ECDSA-AES256-GCM-SHA384
 550
 551  TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256     ECDHE-RSA-AES128-SHA256
 552  TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384     ECDHE-RSA-AES256-SHA384
 553  TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256     ECDHE-RSA-AES128-GCM-SHA256
 554  TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384     ECDHE-RSA-AES256-GCM-SHA384
 555
 556  TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256   ECDHE-ECDSA-AES128-SHA256
 557  TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDHE-ECDSA-AES256-SHA384
 558  TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDHE-ECDSA-AES128-GCM-SHA256
 559  TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDHE-ECDSA-AES256-GCM-SHA384
 560
 561  TLS_DH_anon_WITH_AES_128_CBC_SHA256       ADH-AES128-SHA256
 562  TLS_DH_anon_WITH_AES_256_CBC_SHA256       ADH-AES256-SHA256
 563  TLS_DH_anon_WITH_AES_128_GCM_SHA256       ADH-AES128-GCM-SHA256
 564  TLS_DH_anon_WITH_AES_256_GCM_SHA384       ADH-AES256-GCM-SHA384
 565
 566  RSA_WITH_AES_128_CCM                      AES128-CCM
 567  RSA_WITH_AES_256_CCM                      AES256-CCM
 568  DHE_RSA_WITH_AES_128_CCM                  DHE-RSA-AES128-CCM
 569  DHE_RSA_WITH_AES_256_CCM                  DHE-RSA-AES256-CCM
 570  RSA_WITH_AES_128_CCM_8                    AES128-CCM8
 571  RSA_WITH_AES_256_CCM_8                    AES256-CCM8
 572  DHE_RSA_WITH_AES_128_CCM_8                DHE-RSA-AES128-CCM8
 573  DHE_RSA_WITH_AES_256_CCM_8                DHE-RSA-AES256-CCM8
 574  ECDHE_ECDSA_WITH_AES_128_CCM              ECDHE-ECDSA-AES128-CCM
 575  ECDHE_ECDSA_WITH_AES_256_CCM              ECDHE-ECDSA-AES256-CCM
 576  ECDHE_ECDSA_WITH_AES_128_CCM_8            ECDHE-ECDSA-AES128-CCM8
 577  ECDHE_ECDSA_WITH_AES_256_CCM_8            ECDHE-ECDSA-AES256-CCM8
 578
 579 =head2 Camellia HMAC-Based ciphersuites from RFC6367, extending TLS v1.2
 580
 581  TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 ECDHE-ECDSA-CAMELLIA128-SHA256
 582  TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 ECDHE-ECDSA-CAMELLIA256-SHA384
 583  TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256  ECDH-ECDSA-CAMELLIA128-SHA256
 584  TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384  ECDH-ECDSA-CAMELLIA256-SHA384
 585  TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256   ECDHE-RSA-CAMELLIA128-SHA256
 586  TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384   ECDHE-RSA-CAMELLIA256-SHA384
 587  TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256    ECDH-RSA-CAMELLIA128-SHA256
 588  TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384    ECDH-RSA-CAMELLIA256-SHA384
 589
 590 =head2 Pre shared keying (PSK) ciphersuites
 591
 592  PSK_WITH_NULL_SHA                         PSK-NULL-SHA
 593  DHE_PSK_WITH_NULL_SHA                     DHE-PSK-NULL-SHA
 594  RSA_PSK_WITH_NULL_SHA                     RSA-PSK-NULL-SHA
 595
 596  PSK_WITH_RC4_128_SHA                      PSK-RC4-SHA
 597  PSK_WITH_3DES_EDE_CBC_SHA                 PSK-3DES-EDE-CBC-SHA
 598  PSK_WITH_AES_128_CBC_SHA                  PSK-AES128-CBC-SHA
 599  PSK_WITH_AES_256_CBC_SHA                  PSK-AES256-CBC-SHA
 600
 601  DHE_PSK_WITH_RC4_128_SHA                  DHE-PSK-RC4-SHA
 602  DHE_PSK_WITH_3DES_EDE_CBC_SHA             DHE-PSK-3DES-EDE-CBC-SHA
 603  DHE_PSK_WITH_AES_128_CBC_SHA              DHE-PSK-AES128-CBC-SHA
 604  DHE_PSK_WITH_AES_256_CBC_SHA              DHE-PSK-AES256-CBC-SHA
 605
 606  RSA_PSK_WITH_RC4_128_SHA                  RSA-PSK-RC4-SHA
 607  RSA_PSK_WITH_3DES_EDE_CBC_SHA             RSA-PSK-3DES-EDE-CBC-SHA
 608  RSA_PSK_WITH_AES_128_CBC_SHA              RSA-PSK-AES128-CBC-SHA
 609  RSA_PSK_WITH_AES_256_CBC_SHA              RSA-PSK-AES256-CBC-SHA
 610
 611  PSK_WITH_AES_128_GCM_SHA256               PSK-AES128-GCM-SHA256
 612  PSK_WITH_AES_256_GCM_SHA384               PSK-AES256-GCM-SHA384
 613  DHE_PSK_WITH_AES_128_GCM_SHA256           DHE-PSK-AES128-GCM-SHA256
 614  DHE_PSK_WITH_AES_256_GCM_SHA384           DHE-PSK-AES256-GCM-SHA384
 615  RSA_PSK_WITH_AES_128_GCM_SHA256           RSA-PSK-AES128-GCM-SHA256
 616  RSA_PSK_WITH_AES_256_GCM_SHA384           RSA-PSK-AES256-GCM-SHA384
 617
 618  PSK_WITH_AES_128_CBC_SHA256               PSK-AES128-CBC-SHA256
 619  PSK_WITH_AES_256_CBC_SHA384               PSK-AES256-CBC-SHA384
 620  PSK_WITH_NULL_SHA256                      PSK-NULL-SHA256
 621  PSK_WITH_NULL_SHA384                      PSK-NULL-SHA384
 622  DHE_PSK_WITH_AES_128_CBC_SHA256           DHE-PSK-AES128-CBC-SHA256
 623  DHE_PSK_WITH_AES_256_CBC_SHA384           DHE-PSK-AES256-CBC-SHA384
 624  DHE_PSK_WITH_NULL_SHA256                  DHE-PSK-NULL-SHA256
 625  DHE_PSK_WITH_NULL_SHA384                  DHE-PSK-NULL-SHA384
 626  RSA_PSK_WITH_AES_128_CBC_SHA256           RSA-PSK-AES128-CBC-SHA256
 627  RSA_PSK_WITH_AES_256_CBC_SHA384           RSA-PSK-AES256-CBC-SHA384
 628  RSA_PSK_WITH_NULL_SHA256                  RSA-PSK-NULL-SHA256
 629  RSA_PSK_WITH_NULL_SHA384                  RSA-PSK-NULL-SHA384
 630  PSK_WITH_AES_128_GCM_SHA256               PSK-AES128-GCM-SHA256
 631  PSK_WITH_AES_256_GCM_SHA384               PSK-AES256-GCM-SHA384
 632
 633  ECDHE_PSK_WITH_RC4_128_SHA                ECDHE-PSK-RC4-SHA
 634  ECDHE_PSK_WITH_3DES_EDE_CBC_SHA           ECDHE-PSK-3DES-EDE-CBC-SHA
 635  ECDHE_PSK_WITH_AES_128_CBC_SHA            ECDHE-PSK-AES128-CBC-SHA
 636  ECDHE_PSK_WITH_AES_256_CBC_SHA            ECDHE-PSK-AES256-CBC-SHA
 637  ECDHE_PSK_WITH_AES_128_CBC_SHA256         ECDHE-PSK-AES128-CBC-SHA256
 638  ECDHE_PSK_WITH_AES_256_CBC_SHA384         ECDHE-PSK-AES256-CBC-SHA384
 639  ECDHE_PSK_WITH_NULL_SHA                   ECDHE-PSK-NULL-SHA
 640  ECDHE_PSK_WITH_NULL_SHA256                ECDHE-PSK-NULL-SHA256
 641  ECDHE_PSK_WITH_NULL_SHA384                ECDHE-PSK-NULL-SHA384
 642
 643  PSK_WITH_CAMELLIA_128_CBC_SHA256          PSK-CAMELLIA128-SHA256
 644  PSK_WITH_CAMELLIA_256_CBC_SHA384          PSK-CAMELLIA256-SHA384
 645
 646  DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256      DHE-PSK-CAMELLIA128-SHA256
 647  DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384      DHE-PSK-CAMELLIA256-SHA384
 648
 649  RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256      RSA-PSK-CAMELLIA128-SHA256
 650  RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384      RSA-PSK-CAMELLIA256-SHA384
 651
 652  ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256    ECDHE-PSK-CAMELLIA128-SHA256
 653  ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384    ECDHE-PSK-CAMELLIA256-SHA384
 654
 655  PSK_WITH_AES_128_CCM                      PSK-AES128-CCM
 656  PSK_WITH_AES_256_CCM                      PSK-AES256-CCM
 657  DHE_PSK_WITH_AES_128_CCM                  DHE-PSK-AES128-CCM
 658  DHE_PSK_WITH_AES_256_CCM                  DHE-PSK-AES256-CCM
 659  PSK_WITH_AES_128_CCM_8                    PSK-AES128-CCM8
 660  PSK_WITH_AES_256_CCM_8                    PSK-AES256-CCM8
 661  DHE_PSK_WITH_AES_128_CCM_8                DHE-PSK-AES128-CCM8
 662  DHE_PSK_WITH_AES_256_CCM_8                DHE-PSK-AES256-CCM8
 663
 664 =head2 ChaCha20-Poly1305 cipher suites from draft-ietf-tls-chacha20-poly1305-04, extending TLS v1.2
 665
 666  TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256      ECDHE-RSA-CHACHA20-POLY1305
 667  TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256    ECDHE-ECDSA-CHACHA20-POLY1305
 668  TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256        DHE-RSA-CHACHA20-POLY1305
 669  TLS_PSK_WITH_CHACHA20_POLY1305_SHA256            PSK-CHACHA20-POLY1305
 670  TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256      ECDHE-PSK-CHACHA20-POLY1305
 671  TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256        DHE-PSK-CHACHA20-POLY1305
 672  TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256        RSA-PSK-CHACHA20-POLY1305
 673
 674 =head1 NOTES
 675
 676 Some compiled versions of OpenSSL may not include all the ciphers
 677 listed here because some ciphers were excluded at compile time.
 678
 679 =head1 EXAMPLES
 680
 681 Verbose listing of all OpenSSL ciphers including NULL ciphers:
 682
 683  openssl ciphers -v 'ALL:eNULL'
 684
 685 Include all ciphers except NULL and anonymous DH then sort by
 686 strength:
 687
 688  openssl ciphers -v 'ALL:!ADH:@STRENGTH'
 689
 690 Include all ciphers except ones with no encryption (eNULL) or no
 691 authentication (aNULL):
 692
 693  openssl ciphers -v 'ALL:!aNULL'
 694
 695 Include only 3DES ciphers and then place RSA ciphers last:
 696
 697  openssl ciphers -v '3DES:+RSA'
 698
 699 Include all RC4 ciphers but leave out those without authentication:
 700
 701  openssl ciphers -v 'RC4:!COMPLEMENTOFDEFAULT'
 702
 703 Include all ciphers with RSA authentication but leave out ciphers without
 704 encryption.
 705
 706  openssl ciphers -v 'RSA:!COMPLEMENTOFALL'
 707
 708 Set security level to 2 and display all ciphers consistent with level 2:
 709
 710  openssl ciphers -s -v 'ALL:@SECLEVEL=2'
 711
 712 =head1 SEE ALSO
 713
 714 L<s_client(1)>, L<s_server(1)>, L<ssl(3)>
 715
 716 =head1 HISTORY
 717
 718 The B<-V> option for the B<ciphers> command was added in OpenSSL 1.0.0.
 719
 720 =cut