=head1 SYNOPSIS
B<openssl> B<ciphers>
+[B<-s>]
[B<-v>]
+[B<-V>]
[B<-ssl2>]
[B<-ssl3>]
[B<-tls1>]
+[B<-stdname>]
[B<cipherlist>]
=head1 DESCRIPTION
-The B<cipherlist> command converts OpenSSL cipher lists into ordered
+The B<ciphers> command converts textual OpenSSL cipher lists into ordered
SSL cipher preference lists. It can be used as a test tool to determine
the appropriate cipherlist.
=over 4
+=item B<-s>
+
+Only list supported ciphers: those consistent with the security level. This
+is the actual cipher list an application will support. If this option is
+not used then ciphers excluded by the security level will still be listed.
+
=item B<-v>
-verbose option. List ciphers with a complete description of
+Verbose option. List ciphers with a complete description of
protocol version (SSLv2 or SSLv3; the latter includes TLS), key exchange,
authentication, encryption and mac algorithms used along with any key size
restrictions and whether the algorithm is classed as an "export" cipher.
in a cipher list; this is when similar ciphers are available for
SSL v2 and for SSL v3/TLS v1.
+=item B<-V>
+
+Like B<-v>, but include cipher suite codes in output (hex format).
+
=item B<-ssl3>
only include SSL v3 ciphers.
only include TLS v1 ciphers.
+=item B<-stdname>
+
+precede each ciphersuite by its standard name: only available is OpenSSL
+is built with tracing enabled (B<enable-ssl-trace> argument to Configure).
+
=item B<-h>, B<-?>
print a brief usage message.
list includes any ciphers already present they will be ignored: that is they
will not moved to the end of the list.
-Additionally the cipher string B<@STRENGTH> can be used at any point to sort
-the current cipher list in order of encryption algorithm key length.
+The cipher string B<@STRENGTH> can be used at any point to sort the current
+cipher list in order of encryption algorithm key length.
+
+The cipher string B<@SECLEVEL=n> can be used at any point to set the security
+level to B<n>.
=head1 CIPHER STRINGS
=item B<DEFAULT>
-the default cipher list. This is determined at compile time and is normally
-B<ALL:!ADH:RC4+RSA:+SSLv2:@STRENGTH>. This must be the first cipher string
+the default cipher list. This is determined at compile time and, as of OpenSSL
+1.0.0, is normally B<ALL:!aNULL:!eNULL>. This must be the first cipher string
specified.
=item B<COMPLEMENTOFDEFAULT>
=item B<ALL>
-all ciphers suites except the B<eNULL> ciphers which must be explicitly enabled.
+all cipher suites except the B<eNULL> ciphers which must be explicitly enabled;
+as of OpenSSL, the B<ALL> cipher suites are reasonably ordered by default
=item B<COMPLEMENTOFALL>
=item B<HIGH>
-"high" encryption cipher suites. This currently means those with key lengths larger
-than 128 bits.
+"high" encryption cipher suites. This currently means those with key lengths
+larger than 128 bits, and some cipher suites with 128-bit keys.
=item B<MEDIUM>
-"medium" encryption cipher suites, currently those using 128 bit encryption.
+"medium" encryption cipher suites, currently some of those using 128 bit
+encryption.
=item B<LOW>
-"low" encryption cipher suites, currently those using 64 or 56 bit encryption algorithms
-but excluding export cipher suites.
+"low" encryption cipher suites, currently those using 64 or 56 bit encryption
+algorithms but excluding export cipher suites.
=item B<EXP>, B<EXPORT>
=item B<EXPORT56>
-56 bit export encryption algorithms.
+56 bit export encryption algorithms. In OpenSSL 0.9.8c and later the set of
+56 bit export ciphers is empty unless OpenSSL has been explicitly configured
+with support for experimental ciphers.
=item B<eNULL>, B<NULL>
DH algorithms. These cipher suites are vulnerable to a "man in the middle"
attack and so their use is normally discouraged.
-=item B<kRSA>, B<RSA>
+=item B<kRSA>, B<aRSA>, B<RSA>
-cipher suites using RSA key exchange.
+cipher suites using RSA key exchange, authentication or either respectively.
-=item B<kEDH>
+=item B<kDHE>
cipher suites using ephemeral DH key agreement.
-=item B<kDHr>, B<kDHd>
+=item B<kDHr>, B<kDHd>, B<kDH>
cipher suites using DH key agreement and DH certificates signed by CAs with RSA
-and DSS keys respectively. Not implemented.
-
-=item B<aRSA>
-
-cipher suites using RSA authentication, i.e. the certificates carry RSA keys.
+and DSS keys or either respectively.
=item B<aDSS>, B<DSS>
=item B<aDH>
cipher suites effectively using DH authentication, i.e. the certificates carry
-DH keys. Not implemented.
+DH keys.
=item B<kFZA>, B<aFZA>, B<eFZA>, B<FZA>
ciphers suites using FORTEZZA key exchange, authentication, encryption or all
FORTEZZA algorithms. Not implemented.
-=item B<TLSv1>, B<SSLv3>, B<SSLv2>
+=item B<TLSv1.2>, B<TLSv1>, B<SSLv3>, B<SSLv2>
-TLS v1.0, SSL v3.0 or SSL v2.0 cipher suites respectively.
+TLS v1.2, TLS v1.0, SSL v3.0 or SSL v2.0 cipher suites respectively. Note:
+there are no ciphersuites specific to TLS v1.1.
=item B<DH>
-cipher suites using DH, including anonymous DH.
+cipher suites using DH, including anonymous DH, ephemeral DH and fixed DH.
=item B<ADH>
anonymous DH cipher suites.
-=item B<AES>
+=item B<AES128>, B<AES256>, B<AES>
+
+cipher suites using 128 bit AES, 256 bit AES or either 128 or 256 bit AES.
+
+=item B<AESGCM>
+
+AES in Galois Counter Mode (GCM): these ciphersuites are only supported
+in TLS v1.2.
-cipher suites using AES.
+=item B<CAMELLIA128>, B<CAMELLIA256>, B<CAMELLIA>
+
+cipher suites using 128 bit CAMELLIA, 256 bit CAMELLIA or either 128 or 256 bit
+CAMELLIA.
=item B<3DES>
cipher suites using IDEA.
+=item B<SEED>
+
+cipher suites using SEED.
+
=item B<MD5>
cipher suites using MD5.
cipher suites using SHA1.
+=item B<SHA256>, B<SHA384>
+
+ciphersuites using SHA256 or SHA384.
+
+=item B<aGOST>
+
+cipher suites using GOST R 34.10 (either 2001 or 94) for authenticaction
+(needs an engine supporting GOST algorithms).
+
+=item B<aGOST01>
+
+cipher suites using GOST R 34.10-2001 authentication.
+
+=item B<aGOST94>
+
+cipher suites using GOST R 34.10-94 authentication (note that R 34.10-94
+standard has been expired so use GOST R 34.10-2001)
+
+=item B<kGOST>
+
+cipher suites, using VKO 34.10 key exchange, specified in the RFC 4357.
+
+=item B<GOST94>
+
+cipher suites, using HMAC based on GOST R 34.11-94.
+
+=item B<GOST89MAC>
+
+cipher suites using GOST 28147-89 MAC B<instead of> HMAC.
+
+=item B<PSK>
+
+cipher suites using pre-shared keys (PSK).
+
+=item B<SUITEB128>, B<SUITEB128ONLY>, B<SUITEB192>
+
+enables suite B mode operation using 128 (permitting 192 bit mode by peer)
+128 bit (not permitting 192 bit by peer) or 192 bit level of security
+respectively. If used these cipherstrings should appear first in the cipher
+list and anything after them is ignored. Setting Suite B mode has additional
+consequences required to comply with RFC6460. In particular the supported
+signature algorithms is reduced to support only ECDSA and SHA256 or SHA384,
+only the elliptic curves P-256 and P-384 can be used and only the two suite B
+compliant ciphersuites (ECDHE-ECDSA-AES128-GCM-SHA256 and
+ECDHE-ECDSA-AES256-GCM-SHA384) are permissible.
+
=back
=head1 CIPHER SUITE NAMES
SSL_RSA_WITH_DES_CBC_SHA DES-CBC-SHA
SSL_RSA_WITH_3DES_EDE_CBC_SHA DES-CBC3-SHA
- SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA Not implemented.
- SSL_DH_DSS_WITH_DES_CBC_SHA Not implemented.
- SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA Not implemented.
- SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA Not implemented.
- SSL_DH_RSA_WITH_DES_CBC_SHA Not implemented.
- SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA Not implemented.
- SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA EXP-EDH-DSS-DES-CBC-SHA
- SSL_DHE_DSS_WITH_DES_CBC_SHA EDH-DSS-CBC-SHA
- SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA EDH-DSS-DES-CBC3-SHA
- SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA EXP-EDH-RSA-DES-CBC-SHA
- SSL_DHE_RSA_WITH_DES_CBC_SHA EDH-RSA-DES-CBC-SHA
- SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA EDH-RSA-DES-CBC3-SHA
+ SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA EXP-DH-DSS-DES-CBC-SHA
+ SSL_DH_DSS_WITH_DES_CBC_SHA DH-DSS-DES-CBC-SHA
+ SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA DH-DSS-DES-CBC3-SHA
+ SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA EXP-DH-RSA-DES-CBC-SHA
+ SSL_DH_RSA_WITH_DES_CBC_SHA DH-RSA-DES-CBC-SHA
+ SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA DH-RSA-DES-CBC3-SHA
+ SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA EXP-DHE-DSS-DES-CBC-SHA
+ SSL_DHE_DSS_WITH_DES_CBC_SHA DHE-DSS-CBC-SHA
+ SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA DHE-DSS-DES-CBC3-SHA
+ SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA EXP-DHE-RSA-DES-CBC-SHA
+ SSL_DHE_RSA_WITH_DES_CBC_SHA DHE-RSA-DES-CBC-SHA
+ SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA DHE-RSA-DES-CBC3-SHA
SSL_DH_anon_EXPORT_WITH_RC4_40_MD5 EXP-ADH-RC4-MD5
SSL_DH_anon_WITH_RC4_128_MD5 ADH-RC4-MD5
TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA Not implemented.
TLS_DH_RSA_WITH_DES_CBC_SHA Not implemented.
TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA Not implemented.
- TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA EXP-EDH-DSS-DES-CBC-SHA
- TLS_DHE_DSS_WITH_DES_CBC_SHA EDH-DSS-CBC-SHA
- TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA EDH-DSS-DES-CBC3-SHA
- TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA EXP-EDH-RSA-DES-CBC-SHA
- TLS_DHE_RSA_WITH_DES_CBC_SHA EDH-RSA-DES-CBC-SHA
- TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA EDH-RSA-DES-CBC3-SHA
+ TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA EXP-DHE-DSS-DES-CBC-SHA
+ TLS_DHE_DSS_WITH_DES_CBC_SHA DHE-DSS-CBC-SHA
+ TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA DHE-DSS-DES-CBC3-SHA
+ TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA EXP-DHE-RSA-DES-CBC-SHA
+ TLS_DHE_RSA_WITH_DES_CBC_SHA DHE-RSA-DES-CBC-SHA
+ TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA DHE-RSA-DES-CBC3-SHA
TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 EXP-ADH-RC4-MD5
TLS_DH_anon_WITH_RC4_128_MD5 ADH-RC4-MD5
TLS_DH_anon_WITH_AES_128_CBC_SHA ADH-AES128-SHA
TLS_DH_anon_WITH_AES_256_CBC_SHA ADH-AES256-SHA
+=head2 Camellia ciphersuites from RFC4132, extending TLS v1.0
+
+ TLS_RSA_WITH_CAMELLIA_128_CBC_SHA CAMELLIA128-SHA
+ TLS_RSA_WITH_CAMELLIA_256_CBC_SHA CAMELLIA256-SHA
+
+ TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA DH-DSS-CAMELLIA128-SHA
+ TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA DH-DSS-CAMELLIA256-SHA
+ TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA DH-RSA-CAMELLIA128-SHA
+ TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA DH-RSA-CAMELLIA256-SHA
+
+ TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA DHE-DSS-CAMELLIA128-SHA
+ TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA DHE-DSS-CAMELLIA256-SHA
+ TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA DHE-RSA-CAMELLIA128-SHA
+ TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA DHE-RSA-CAMELLIA256-SHA
+
+ TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA ADH-CAMELLIA128-SHA
+ TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA ADH-CAMELLIA256-SHA
+
+=head2 SEED ciphersuites from RFC4162, extending TLS v1.0
+
+ TLS_RSA_WITH_SEED_CBC_SHA SEED-SHA
+
+ TLS_DH_DSS_WITH_SEED_CBC_SHA DH-DSS-SEED-SHA
+ TLS_DH_RSA_WITH_SEED_CBC_SHA DH-RSA-SEED-SHA
+
+ TLS_DHE_DSS_WITH_SEED_CBC_SHA DHE-DSS-SEED-SHA
+ TLS_DHE_RSA_WITH_SEED_CBC_SHA DHE-RSA-SEED-SHA
+
+ TLS_DH_anon_WITH_SEED_CBC_SHA ADH-SEED-SHA
+
+=head2 GOST ciphersuites from draft-chudov-cryptopro-cptls, extending TLS v1.0
+
+Note: these ciphers require an engine which including GOST cryptographic
+algorithms, such as the B<ccgost> engine, included in the OpenSSL distribution.
+
+ TLS_GOSTR341094_WITH_28147_CNT_IMIT GOST94-GOST89-GOST89
+ TLS_GOSTR341001_WITH_28147_CNT_IMIT GOST2001-GOST89-GOST89
+ TLS_GOSTR341094_WITH_NULL_GOSTR3411 GOST94-NULL-GOST94
+ TLS_GOSTR341001_WITH_NULL_GOSTR3411 GOST2001-NULL-GOST94
+
=head2 Additional Export 1024 and other cipher suites
Note: these ciphers can also be used in SSL v3.
TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA EXP1024-DHE-DSS-RC4-SHA
TLS_DHE_DSS_WITH_RC4_128_SHA DHE-DSS-RC4-SHA
-=head2 SSL v2.0 cipher suites.
+=head2 Elliptic curve cipher suites.
+
+ TLS_ECDH_RSA_WITH_NULL_SHA ECDH-RSA-NULL-SHA
+ TLS_ECDH_RSA_WITH_RC4_128_SHA ECDH-RSA-RC4-SHA
+ TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA ECDH-RSA-DES-CBC3-SHA
+ TLS_ECDH_RSA_WITH_AES_128_CBC_SHA ECDH-RSA-AES128-SHA
+ TLS_ECDH_RSA_WITH_AES_256_CBC_SHA ECDH-RSA-AES256-SHA
+
+ TLS_ECDH_ECDSA_WITH_NULL_SHA ECDH-ECDSA-NULL-SHA
+ TLS_ECDH_ECDSA_WITH_RC4_128_SHA ECDH-ECDSA-RC4-SHA
+ TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA ECDH-ECDSA-DES-CBC3-SHA
+ TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA ECDH-ECDSA-AES128-SHA
+ TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA ECDH-ECDSA-AES256-SHA
+
+ TLS_ECDHE_RSA_WITH_NULL_SHA ECDHE-RSA-NULL-SHA
+ TLS_ECDHE_RSA_WITH_RC4_128_SHA ECDHE-RSA-RC4-SHA
+ TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA ECDHE-RSA-DES-CBC3-SHA
+ TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA ECDHE-RSA-AES128-SHA
+ TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDHE-RSA-AES256-SHA
+
+ TLS_ECDHE_ECDSA_WITH_NULL_SHA ECDHE-ECDSA-NULL-SHA
+ TLS_ECDHE_ECDSA_WITH_RC4_128_SHA ECDHE-ECDSA-RC4-SHA
+ TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA ECDHE-ECDSA-DES-CBC3-SHA
+ TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA ECDHE-ECDSA-AES128-SHA
+ TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA ECDHE-ECDSA-AES256-SHA
+
+ TLS_ECDH_anon_WITH_NULL_SHA AECDH-NULL-SHA
+ TLS_ECDH_anon_WITH_RC4_128_SHA AECDH-RC4-SHA
+ TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA AECDH-DES-CBC3-SHA
+ TLS_ECDH_anon_WITH_AES_128_CBC_SHA AECDH-AES128-SHA
+ TLS_ECDH_anon_WITH_AES_256_CBC_SHA AECDH-AES256-SHA
+
+=head2 TLS v1.2 cipher suites
+
+ TLS_RSA_WITH_NULL_SHA256 NULL-SHA256
+
+ TLS_RSA_WITH_AES_128_CBC_SHA256 AES128-SHA256
+ TLS_RSA_WITH_AES_256_CBC_SHA256 AES256-SHA256
+ TLS_RSA_WITH_AES_128_GCM_SHA256 AES128-GCM-SHA256
+ TLS_RSA_WITH_AES_256_GCM_SHA384 AES256-GCM-SHA384
+
+ TLS_DH_RSA_WITH_AES_128_CBC_SHA256 DH-RSA-AES128-SHA256
+ TLS_DH_RSA_WITH_AES_256_CBC_SHA256 DH-RSA-AES256-SHA256
+ TLS_DH_RSA_WITH_AES_128_GCM_SHA256 DH-RSA-AES128-GCM-SHA256
+ TLS_DH_RSA_WITH_AES_256_GCM_SHA384 DH-RSA-AES256-GCM-SHA384
+
+ TLS_DH_DSS_WITH_AES_128_CBC_SHA256 DH-DSS-AES128-SHA256
+ TLS_DH_DSS_WITH_AES_256_CBC_SHA256 DH-DSS-AES256-SHA256
+ TLS_DH_DSS_WITH_AES_128_GCM_SHA256 DH-DSS-AES128-GCM-SHA256
+ TLS_DH_DSS_WITH_AES_256_GCM_SHA384 DH-DSS-AES256-GCM-SHA384
+
+ TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 DHE-RSA-AES128-SHA256
+ TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 DHE-RSA-AES256-SHA256
+ TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 DHE-RSA-AES128-GCM-SHA256
+ TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DHE-RSA-AES256-GCM-SHA384
+
+ TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 DHE-DSS-AES128-SHA256
+ TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 DHE-DSS-AES256-SHA256
+ TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 DHE-DSS-AES128-GCM-SHA256
+ TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 DHE-DSS-AES256-GCM-SHA384
+
+ TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 ECDH-RSA-AES128-SHA256
+ TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 ECDH-RSA-AES256-SHA384
+ TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 ECDH-RSA-AES128-GCM-SHA256
+ TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 ECDH-RSA-AES256-GCM-SHA384
+
+ TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 ECDH-ECDSA-AES128-SHA256
+ TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 ECDH-ECDSA-AES256-SHA384
+ TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 ECDH-ECDSA-AES128-GCM-SHA256
+ TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 ECDH-ECDSA-AES256-GCM-SHA384
+
+ TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 ECDHE-RSA-AES128-SHA256
+ TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDHE-RSA-AES256-SHA384
+ TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDHE-RSA-AES128-GCM-SHA256
+ TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDHE-RSA-AES256-GCM-SHA384
+
+ TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 ECDHE-ECDSA-AES128-SHA256
+ TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 ECDHE-ECDSA-AES256-SHA384
+ TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 ECDHE-ECDSA-AES128-GCM-SHA256
+ TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDHE-ECDSA-AES256-GCM-SHA384
+
+ TLS_DH_anon_WITH_AES_128_CBC_SHA256 ADH-AES128-SHA256
+ TLS_DH_anon_WITH_AES_256_CBC_SHA256 ADH-AES256-SHA256
+ TLS_DH_anon_WITH_AES_128_GCM_SHA256 ADH-AES128-GCM-SHA256
+ TLS_DH_anon_WITH_AES_256_GCM_SHA384 ADH-AES256-GCM-SHA384
+
+=head2 Pre shared keying (PSK) cipheruites
+
+ TLS_PSK_WITH_RC4_128_SHA PSK-RC4-SHA
+ TLS_PSK_WITH_3DES_EDE_CBC_SHA PSK-3DES-EDE-CBC-SHA
+ TLS_PSK_WITH_AES_128_CBC_SHA PSK-AES128-CBC-SHA
+ TLS_PSK_WITH_AES_256_CBC_SHA PSK-AES256-CBC-SHA
+
+=head2 Deprecated SSL v2.0 cipher suites.
SSL_CK_RC4_128_WITH_MD5 RC4-MD5
SSL_CK_RC4_128_EXPORT40_WITH_MD5 EXP-RC4-MD5
SSL_CK_DES_64_CBC_WITH_MD5 DES-CBC-MD5
SSL_CK_DES_192_EDE3_CBC_WITH_MD5 DES-CBC3-MD5
-=head1 NOTES
-The non-ephemeral DH modes are currently unimplemented in OpenSSL
-because there is no support for DH certificates.
+=head1 NOTES
Some compiled versions of OpenSSL may not include all the ciphers
listed here because some ciphers were excluded at compile time.
openssl ciphers -v 'RSA:!COMPLEMENTOFALL'
+Set security level to 2 and display all ciphers consistent with level 2:
+
+ openssl ciphers -v 'ALL:@SECLEVEL=2'
+
=head1 SEE ALSO
L<s_client(1)|s_client(1)>, L<s_server(1)|s_server(1)>, L<ssl(3)|ssl(3)>
=head1 HISTORY
-The B<COMPLENTOFALL> and B<COMPLEMENTOFDEFAULT> selection options were
-added in version 0.9.7.
+The B<COMPLENTOFALL> and B<COMPLEMENTOFDEFAULT> selection options
+for cipherlist strings were added in OpenSSL 0.9.7.
+The B<-V> option for the B<ciphers> command was added in OpenSSL 1.0.0.
=cut