update ciphers manual page
[openssl.git] / doc / apps / ciphers.pod
index 75982762d364a02d041062ba1f7bf03648224184..02fc57afc7b9f169cdefa02d1c3095f6084f056d 100644 (file)
@@ -7,11 +7,16 @@ ciphers - SSL cipher display and cipher list tool.
 =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>]
 
@@ -25,40 +30,50 @@ the appropriate 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
@@ -149,22 +164,9 @@ encryption.
 
 =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>
 
@@ -205,11 +207,6 @@ Curve DH (ECDH) cipher suites.
 
 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
@@ -225,8 +222,7 @@ anonymous Elliptic Curve Diffie Hellman cipher suites.
 
 =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>
 
@@ -237,20 +233,20 @@ cipher suites using DSS authentication, i.e. the certificates carry DSS keys.
 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>
 
@@ -273,6 +269,10 @@ while B<AESCCM8> only references 8 octet ICV.
 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.
@@ -368,30 +368,17 @@ e.g. DES-CBC3-SHA. In these cases, RSA authentication is used.
 
  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.
@@ -402,32 +389,17 @@ e.g. DES-CBC3-SHA. In these cases, RSA authentication is used.
 
  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
@@ -492,26 +464,10 @@ algorithms, such as the B<ccgost> engine, included in the OpenSSL distribution.
 
 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
@@ -559,16 +515,6 @@ Note: these ciphers can also be used in SSL v3.
  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
@@ -601,12 +547,8 @@ Note: these ciphers can also be used in SSL v3.
 
  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
 
@@ -682,6 +624,16 @@ Note: these ciphers can also be used in SSL v3.
  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
@@ -726,8 +678,6 @@ 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