Commit 4ceddeea authored by Hubert Kario's avatar Hubert Kario Committed by Matt Caswell
Browse files

backport changes to ciphers(1) man page 

Backport of patch:
add ECC strings to ciphers(1), point out difference between DH and ECDH

and backport of other other assorted fixes to this man page

 * Make a clear distinction between DH and ECDH key exchange.
 * Group all key exchange cipher suite identifiers, first DH then ECDH
 * add descriptions for all supported *DH* identifiers
 * add ECDSA authentication descriptions
 * add example showing how to disable all suites that offer no
   authentication or encryption
 * update status of static DH (it's now supported)
 * backport descriptions of AES128, AES256, AESGCM
 * backport descriptions of CAMELLIA128, CAMELLIA256
 * backport listing of standard names for ECC cipher suites
   and TLSv1.2 cipher suites
 * backport description of PSK cipher suites
parent 2fddc5fc

doc/apps/ciphers.pod

+202 −42
Original line number Diff line number Diff line
@@ -36,7 +36,7 @@ SSL v2 and for SSL v3/TLS v1. 


=item B<-V>



Like B<-V>, but include cipher suite codes in output (hex format).

Like B<-v>, but include cipher suite codes in output (hex format).



=item B<-ssl3>
@@ -116,8 +116,8 @@ specified. 
=item B<COMPLEMENTOFDEFAULT>



the ciphers included in B<ALL>, but not enabled by default. Currently

this is B<ADH>. Note that this rule does not cover B<eNULL>, which is

not included by B<ALL> (use B<COMPLEMENTOFALL> if necessary).

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).



=item B<ALL>
@@ -165,21 +165,58 @@ included. 
=item B<aNULL>



the cipher suites offering no authentication. This is currently the anonymous

DH algorithms. These cipher suites are vulnerable to a "man in the middle"

attack and so their use is normally discouraged.

DH algorithms and anonymous ECDH 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>



cipher suites using RSA key exchange.



=item B<kDHr>, B<kDHd>, B<kDH>



cipher suites using DH key agreement and DH certificates signed by CAs with RSA

and DSS keys or either respectively.



=item B<kEDH>



cipher suites using ephemeral DH key agreement.

cipher suites using ephemeral DH key agreement, including anonymous cipher

suites.



=item B<kDHr>, B<kDHd>

=item B<EDH>



cipher suites using DH key agreement and DH certificates signed by CAs with RSA

and DSS keys respectively. Not implemented.

cipher suites using authenticated ephemeral DH key agreement.



=item B<ADH>



anonymous DH cipher suites, note that this does not include anonymous Elliptic

Curve DH (ECDH) cipher suites.



=item B<DH>



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>



cipher suites using ephemeral ECDH key agreement, including anonymous

cipher suites.



=item B<EECDHE>



cipher suites using authenticated ephemeral ECDH key agreement.



=item B<AECDH>



anonymous Elliptic Curve Diffie Hellman cipher suites.



=item B<ECDH>



cipher suites using ECDH key exchange, including anonymous, ephemeral and

fixed ECDH.



=item B<aRSA>
@@ -192,32 +229,41 @@ cipher suites using DSS authentication, i.e. the certificates carry DSS keys. 
=item B<aDH>



cipher suites effectively using DH authentication, i.e. the certificates carry

DH keys.  Not implemented.

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<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>



TLS v1.0, SSL v3.0 or SSL v2.0 cipher suites respectively.



=item B<DH>

=item B<TLSv1.2>, B<TLSv1>, B<SSLv3>, B<SSLv2>



cipher suites using DH, including anonymous DH.

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<ADH>

=item B<AES128>, B<AES256>, B<AES>



anonymous DH cipher suites.

cipher suites using 128 bit AES, 256 bit AES or either 128 or 256 bit AES.



=item B<AES>

=item B<AESGCM>



cipher suites using AES.

AES in Galois Counter Mode (GCM): these ciphersuites are only supported

in TLS v1.2.



=item B<CAMELLIA>

=item B<CAMELLIA128>, B<CAMELLIA256>, B<CAMELLIA>



cipher suites using Camellia.

cipher suites using 128 bit CAMELLIA, 256 bit CAMELLIA or either 128 or 256 bit

CAMELLIA.



=item B<3DES>
@@ -251,6 +297,10 @@ 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
@@ -277,6 +327,21 @@ cipher suites, using HMAC based on GOST R 34.11-94. 


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
@@ -300,12 +365,12 @@ e.g. DES-CBC3-SHA. In these cases, RSA authentication is used. 
 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_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-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
@@ -360,10 +425,10 @@ e.g. DES-CBC3-SHA. In these cases, RSA authentication is used. 
 TLS_RSA_WITH_AES_128_CBC_SHA            AES128-SHA

 TLS_RSA_WITH_AES_256_CBC_SHA            AES256-SHA



 TLS_DH_DSS_WITH_AES_128_CBC_SHA         Not implemented.

 TLS_DH_DSS_WITH_AES_256_CBC_SHA         Not implemented.

 TLS_DH_RSA_WITH_AES_128_CBC_SHA         Not implemented.

 TLS_DH_RSA_WITH_AES_256_CBC_SHA         Not implemented.

 TLS_DH_DSS_WITH_AES_128_CBC_SHA         DH-DSS-AES128-SHA

 TLS_DH_DSS_WITH_AES_256_CBC_SHA         DH-DSS-AES256-SHA

 TLS_DH_RSA_WITH_AES_128_CBC_SHA         DH-RSA-AES128-SHA

 TLS_DH_RSA_WITH_AES_256_CBC_SHA         DH-RSA-AES256-SHA



 TLS_DHE_DSS_WITH_AES_128_CBC_SHA        DHE-DSS-AES128-SHA

 TLS_DHE_DSS_WITH_AES_256_CBC_SHA        DHE-DSS-AES256-SHA
@@ -378,10 +443,10 @@ e.g. DES-CBC3-SHA. In these cases, RSA authentication is used. 
 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   Not implemented.

 TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA   Not implemented.

 TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA   Not implemented.

 TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA   Not implemented.

 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
@@ -395,8 +460,8 @@ e.g. DES-CBC3-SHA. In these cases, RSA authentication is used. 


 TLS_RSA_WITH_SEED_CBC_SHA              SEED-SHA



 TLS_DH_DSS_WITH_SEED_CBC_SHA           Not implemented.

 TLS_DH_RSA_WITH_SEED_CBC_SHA           Not implemented.

 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
@@ -423,7 +488,100 @@ 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
@@ -435,9 +593,6 @@ Note: these ciphers can also be used in SSL v3. 


=head1 NOTES



The non-ephemeral DH modes are currently unimplemented in OpenSSL

because there is no support for DH certificates.



Some compiled versions of OpenSSL may not include all the ciphers

listed here because some ciphers were excluded at compile time.
@@ -452,6 +607,11 @@ strength: 


 openssl ciphers -v 'ALL:!ADH:@STRENGTH'



Include all ciphers except ones with no encryption (eNULL) or no

authentication (aNULL):



 openssl ciphers -v 'ALL:!aNULL'



Include only 3DES ciphers and then place RSA ciphers last:



 openssl ciphers -v '3DES:+RSA'