=head1 SYNOPSIS
B<openssl> B<ciphers>
+[B<-help>]
[B<-s>]
[B<-v>]
[B<-V>]
[B<-ssl3>]
[B<-tls1>]
+[B<-tls1_1>]
+[B<-tls1_2>]
+[B<-s>]
+[B<-psk>]
[B<-stdname>]
[B<cipherlist>]
=over 4
+=item B<-help>
+
+Print out a usage message.
+
=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<-psk>
+
+When combined with B<-s> includes cipher suites which require PSK.
+
=item B<-v>
-Verbose option. List ciphers with a complete description of
-protocol version, key exchange,
-authentication, encryption and mac algorithms used along with any key size
-restrictions and whether the algorithm is classed as an "export" cipher.
+Verbose output: For each ciphersuite, list details as provided by
+L<SSL_CIPHER_description(3)>.
=item B<-V>
-Like B<-v>, but include cipher suite codes in output (hex format).
+Like B<-v>, but include the official cipher suite values in hex.
=item B<-ssl3>
-only include SSL v3 ciphers.
+List the ciphers which would be used if SSL v3 was negotiated.
=item B<-tls1>
-only include TLS v1 ciphers.
+List the ciphers which would be used if TLS v1.0 was negotiated.
+
+=item B<-tls1_1>
+
+List the ciphers which would be used if TLS v1.1 was negotiated.
+
+=item B<-tls1_2>
+
+List the ciphers which would be used if TLS v1.2 was negotiated.
=item B<-stdname>
=item B<DEFAULT>
-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.
+the default cipher list. This is determined at compile time and
+is B<ALL:!COMPLEMENTOFDEFAULT:!eNULL>. This must be the first cipher
+string specified.
=item B<COMPLEMENTOFDEFAULT>
the ciphers included in B<ALL>, but not enabled by default. Currently
-this is B<ADH> and B<AECDH>. Note that this rule does not cover B<eNULL>,
-which is not included by B<ALL> (use B<COMPLEMENTOFALL> if necessary).
+this includes all RC4, DES, RC2 and anonymous ciphers. Note that this rule does
+not cover B<eNULL>, which is not included by B<ALL> (use B<COMPLEMENTOFALL> if
+necessary).
=item B<ALL>
=item B<LOW>
-"low" encryption cipher suites, currently those using 64 or 56 bit encryption
-algorithms but excluding export cipher suites.
-
-=item B<EXP>, B<EXPORT>
-
-export encryption algorithms. Including 40 and 56 bits algorithms.
-
-=item B<EXPORT40>
-
-40 bit export encryption algorithms
-
-=item B<EXPORT56>
-
-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.
+"low" encryption cipher suites, currently those using 64 or 56 bit
+encryption algorithms but excluding export cipher suites. All these
+ciphersuites have been removed as of OpenSSL 1.1.0.
=item B<eNULL>, B<NULL>
cipher suites using ECDSA authentication, i.e. the certificates carry ECDSA
keys.
-=item B<TLSv1.2>, B<TLSv1>, B<SSLv3>
+=item B<TLSv1.2>, B<TLSv1.0>, B<SSLv3>
+
+Lists ciphersuites which are only supported in at least TLS v1.2, TLS v1.0
+or SSL v3.0 respectively. Note: there are no ciphersuites specific to TLS v1.1.
+Since this is only the minimum version if, for example, TLS v1.0 is supported
+then both TLS v1.0 and SSL v3.0 ciphersuites are included.
-TLS v1.2, TLS v1.0 or SSL v3.0 cipher suites respectively. Note:
-there are no ciphersuites specific to TLS v1.1.
+Note: these cipher strings B<do not> change the negotiated version of SSL or
+TLS only the list of cipher suites.
=item B<AES128>, B<AES256>, B<AES>
AES in Galois Counter Mode (GCM): these ciphersuites are only supported
in TLS v1.2.
+=item B<AESCCM>, B<AESCCM8>
+
+AES in Cipher Block Chaining - Message Authentication Mode (CCM): these
+ciphersuites are only supported in TLS v1.2. B<AESCCM> references CCM
+cipher suites using both 16 and 8 octet Integrity Check Value (ICV)
+while B<AESCCM8> only references 8 octet ICV.
+
=item B<CAMELLIA128>, B<CAMELLIA256>, B<CAMELLIA>
cipher suites using 128 bit CAMELLIA, 256 bit CAMELLIA or either 128 or 256 bit
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.
SSL_RSA_WITH_NULL_MD5 NULL-MD5
SSL_RSA_WITH_NULL_SHA NULL-SHA
- SSL_RSA_EXPORT_WITH_RC4_40_MD5 EXP-RC4-MD5
SSL_RSA_WITH_RC4_128_MD5 RC4-MD5
SSL_RSA_WITH_RC4_128_SHA RC4-SHA
- SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5 EXP-RC2-CBC-MD5
SSL_RSA_WITH_IDEA_CBC_SHA IDEA-CBC-SHA
- SSL_RSA_EXPORT_WITH_DES40_CBC_SHA EXP-DES-CBC-SHA
- SSL_RSA_WITH_DES_CBC_SHA DES-CBC-SHA
SSL_RSA_WITH_3DES_EDE_CBC_SHA DES-CBC3-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_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
- SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA EXP-ADH-DES-CBC-SHA
- SSL_DH_anon_WITH_DES_CBC_SHA ADH-DES-CBC-SHA
SSL_DH_anon_WITH_3DES_EDE_CBC_SHA ADH-DES-CBC3-SHA
SSL_FORTEZZA_KEA_WITH_NULL_SHA Not implemented.
TLS_RSA_WITH_NULL_MD5 NULL-MD5
TLS_RSA_WITH_NULL_SHA NULL-SHA
- TLS_RSA_EXPORT_WITH_RC4_40_MD5 EXP-RC4-MD5
TLS_RSA_WITH_RC4_128_MD5 RC4-MD5
TLS_RSA_WITH_RC4_128_SHA RC4-SHA
- TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 EXP-RC2-CBC-MD5
TLS_RSA_WITH_IDEA_CBC_SHA IDEA-CBC-SHA
- TLS_RSA_EXPORT_WITH_DES40_CBC_SHA EXP-DES-CBC-SHA
- TLS_RSA_WITH_DES_CBC_SHA DES-CBC-SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA DES-CBC3-SHA
- TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA Not implemented.
- TLS_DH_DSS_WITH_DES_CBC_SHA Not implemented.
TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA Not implemented.
- 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-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_EXPORT_WITH_DES40_CBC_SHA EXP-ADH-DES-CBC-SHA
- TLS_DH_anon_WITH_DES_CBC_SHA ADH-DES-CBC-SHA
TLS_DH_anon_WITH_3DES_EDE_CBC_SHA ADH-DES-CBC3-SHA
=head2 AES ciphersuites from RFC3268, extending TLS v1.0
Note: these ciphers can also be used in SSL v3.
- TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA EXP1024-DES-CBC-SHA
- TLS_RSA_EXPORT1024_WITH_RC4_56_SHA EXP1024-RC4-SHA
- TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA EXP1024-DHE-DSS-DES-CBC-SHA
- 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 Elliptic curve cipher suites.
TLS_DH_anon_WITH_AES_128_GCM_SHA256 ADH-AES128-GCM-SHA256
TLS_DH_anon_WITH_AES_256_GCM_SHA384 ADH-AES256-GCM-SHA384
+ RSA_WITH_AES_128_CCM AES128-CCM
+ RSA_WITH_AES_256_CCM AES256-CCM
+ DHE_RSA_WITH_AES_128_CCM DHE-RSA-AES128-CCM
+ DHE_RSA_WITH_AES_256_CCM DHE-RSA-AES256-CCM
+ RSA_WITH_AES_128_CCM_8 AES128-CCM8
+ RSA_WITH_AES_256_CCM_8 AES256-CCM8
+ DHE_RSA_WITH_AES_128_CCM_8 DHE-RSA-AES128-CCM8
+ DHE_RSA_WITH_AES_256_CCM_8 DHE-RSA-AES256-CCM8
+ ECDHE_ECDSA_WITH_AES_128_CCM ECDHE-ECDSA-AES128-CCM
+ ECDHE_ECDSA_WITH_AES_256_CCM ECDHE-ECDSA-AES256-CCM
+ ECDHE_ECDSA_WITH_AES_128_CCM_8 ECDHE-ECDSA-AES128-CCM8
+ ECDHE_ECDSA_WITH_AES_256_CCM_8 ECDHE-ECDSA-AES256-CCM8
+
=head2 Camellia HMAC-Based ciphersuites from RFC6367, extending TLS v1.2
TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 ECDHE-ECDSA-CAMELLIA128-SHA256
ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 ECDHE-PSK-CAMELLIA128-SHA256
ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 ECDHE-PSK-CAMELLIA256-SHA384
+ PSK_WITH_AES_128_CCM PSK-AES128-CCM
+ PSK_WITH_AES_256_CCM PSK-AES256-CCM
+ DHE_PSK_WITH_AES_128_CCM DHE-PSK-AES128-CCM
+ DHE_PSK_WITH_AES_256_CCM DHE-PSK-AES256-CCM
+ PSK_WITH_AES_128_CCM_8 PSK-AES128-CCM8
+ PSK_WITH_AES_256_CCM_8 PSK-AES256-CCM8
+ DHE_PSK_WITH_AES_128_CCM_8 DHE-PSK-AES128-CCM8
+ DHE_PSK_WITH_AES_256_CCM_8 DHE-PSK-AES256-CCM8
+
=head1 NOTES
Some compiled versions of OpenSSL may not include all the ciphers
=head1 SEE ALSO
-L<s_client(1)|s_client(1)>, L<s_server(1)|s_server(1)>, L<ssl(3)|ssl(3)>
+L<s_client(1)>, L<s_server(1)>, L<ssl(3)>
=head1 HISTORY
-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