=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>
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.
-
=item B<cipherlist>
a cipher list to convert to a cipher preference list. If it is not included
=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 DH, including anonymous DH, ephemeral DH and fixed DH.
-=item B<kECDHr>, B<kECDHe>, B<kECDH>
-
-cipher suites using fixed ECDH key agreement signed by CAs with RSA and ECDSA
-keys or either respectively.
-
=item B<kEECDH>, B<kECDHE>
cipher suites using ephemeral ECDH key agreement, including anonymous
=item B<ECDH>
-cipher suites using ECDH key exchange, including anonymous, ephemeral and
-fixed ECDH.
+cipher suites using ECDH key exchange, including anonymous and ephemeral.
=item B<aDSS>, B<DSS>
cipher suites effectively using DH authentication, i.e. the certificates carry
DH keys.
-=item B<aECDH>
-
-cipher suites effectively using ECDH authentication, i.e. the certificates
-carry ECDH keys.
-
=item B<aECDSA>, B<ECDSA>
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>
-TLS v1.2, TLS v1.0 or SSL v3.0 cipher suites respectively. Note:
-there are no ciphersuites specific to TLS v1.1.
+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.
+
+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>
cipher suites using 128 bit CAMELLIA, 256 bit CAMELLIA or either 128 or 256 bit
CAMELLIA.
+=item B<CHACHA20>
+
+cipher suites using ChaCha20.
+
=item B<3DES>
cipher suites using triple DES.
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_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_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_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 ECDHE-ECDSA-CAMELLIA128-SHA256
TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 ECDHE-ECDSA-CAMELLIA256-SHA384
- TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 ECDH-ECDSA-CAMELLIA128-SHA256
- TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 ECDH-ECDSA-CAMELLIA256-SHA384
TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 ECDHE-RSA-CAMELLIA128-SHA256
TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 ECDHE-RSA-CAMELLIA256-SHA384
- TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 ECDH-RSA-CAMELLIA128-SHA256
- TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 ECDH-RSA-CAMELLIA256-SHA384
=head2 Pre shared keying (PSK) ciphersuites
DHE_PSK_WITH_AES_128_CCM_8 DHE-PSK-AES128-CCM8
DHE_PSK_WITH_AES_256_CCM_8 DHE-PSK-AES256-CCM8
+=head2 ChaCha20-Poly1305 cipher suites from draft-ietf-tls-chacha20-poly1305-04, extending TLS v1.2
+
+ TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 ECDHE-RSA-CHACHA20-POLY1305
+ TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 ECDHE-ECDSA-CHACHA20-POLY1305
+ TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 DHE-RSA-CHACHA20-POLY1305
+ TLS_PSK_WITH_CHACHA20_POLY1305_SHA256 PSK-CHACHA20-POLY1305
+ TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 ECDHE-PSK-CHACHA20-POLY1305
+ TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256 DHE-PSK-CHACHA20-POLY1305
+ TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256 RSA-PSK-CHACHA20-POLY1305
+
=head1 NOTES
Some compiled versions of OpenSSL may not include all the ciphers
=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