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MAN page from RedHat EL 5 openssl10-1.0.2k-1.el5.pp.x86_64.rpm

CIPHERS

Section: OpenSSL (1)
Updated: 2017-01-26
Index 

NAME

ciphers - SSL cipher display and cipher list tool. 

SYNOPSIS

openssl ciphers[-v][-V][-ssl2][-ssl3][-tls1][cipherlist] 

DESCRIPTION

The ciphers command converts textual OpenSSL cipher lists into orderedSSL cipher preference lists. It can be used as a test tool to determinethe appropriate cipherlist. 

COMMAND OPTIONS

-v
Verbose option. List ciphers with a complete description ofprotocol version (SSLv2 or SSLv3; the latter includes TLS), key exchange,authentication, encryption and mac algorithms used along with any key sizerestrictions and whether the algorithm is classed as an ``export'' cipher.Note that without the -v option, ciphers may seem to appear twicein a cipher list; this is when similar ciphers are available forSSL v2 and for SSL v3/TLS v1.
-V
Like -v, but include cipher suite codes in output (hex format).
-ssl3, -tls1
This lists ciphers compatible with any of SSLv3, TLSv1, TLSv1.1 or TLSv1.2.
-ssl2
Only include SSLv2 ciphers.
-h, -?
Print a brief usage message.
cipherlist
A cipher list to convert to a cipher preference list. If it is not includedthen the default cipher list will be used. The format is described below.
 

CIPHER LIST FORMAT

The cipher list consists of one or more cipher strings separated by colons.Commas or spaces are also acceptable separators but colons are normally used.

The actual cipher string can take several different forms.

It can consist of a single cipher suite such as RC4-SHA.

It can represent a list of cipher suites containing a certain algorithm, orcipher suites of a certain type. For example SHA1 represents all cipherssuites using the digest algorithm SHA1 and SSLv3 represents all SSL v3algorithms.

Lists of cipher suites can be combined in a single cipher string using the+ character. This is used as a logical and operation. For exampleSHA1+DES represents all cipher suites containing the SHA1 and the DESalgorithms.

Each cipher string can be optionally preceded by the characters !,- or +.

If ! is used then the ciphers are permanently deleted from the list.The ciphers deleted can never reappear in the list even if they areexplicitly stated.

If - is used then the ciphers are deleted from the list, but some orall of the ciphers can be added again by later options.

If + is used then the ciphers are moved to the end of the list. Thisoption doesn't add any new ciphers it just moves matching existing ones.

If none of these characters is present then the string is just interpretedas a list of ciphers to be appended to the current preference list. If thelist includes any ciphers already present they will be ignored: that is theywill not moved to the end of the list.

Additionally the cipher string @STRENGTH can be used at any point to sortthe current cipher list in order of encryption algorithm key length. 

CIPHER STRINGS

The following is a list of all permitted cipher strings and their meanings.
DEFAULT
The default cipher list.This is determined at compile time and is normallyALL:!EXPORT:!LOW:!aNULL:!eNULL:!SSLv2.When used, this must be the first cipherstring specified.
COMPLEMENTOFDEFAULT
the ciphers included in ALL, but not enabled by default. Currentlythis is ADH and AECDH. Note that this rule does not cover eNULL,which is not included by ALL (use COMPLEMENTOFALL if necessary).
ALL
all cipher suites except the eNULL ciphers which must be explicitly enabled;as of OpenSSL, the ALL cipher suites are reasonably ordered by default
COMPLEMENTOFALL
the cipher suites not enabled by ALL, currently being eNULL.
HIGH
``high'' encryption cipher suites. This currently means those with key lengths largerthan 128 bits, and some cipher suites with 128-bit keys.
MEDIUM
``medium'' encryption cipher suites, currently some of those using 128 bit encryption.
LOW
Low strength encryption cipher suites, currently those using 64 or 56 bitencryption algorithms but excluding export cipher suites.As of OpenSSL 1.0.2g, these are disabled in default builds.
EXP, EXPORT
Export strength encryption algorithms. Including 40 and 56 bits algorithms.As of OpenSSL 1.0.2g, these are disabled in default builds.
EXPORT40
40-bit export encryption algorithmsAs of OpenSSL 1.0.2g, these are disabled in default builds.
EXPORT56
56-bit export encryption algorithms. In OpenSSL 0.9.8c and later the set of56 bit export ciphers is empty unless OpenSSL has been explicitly configuredwith support for experimental ciphers.As of OpenSSL 1.0.2g, these are disabled in default builds.
eNULL, NULL
The ``NULL'' ciphers that is those offering no encryption. Because these offer noencryption at all and are a security risk they are not enabled via either theDEFAULT or ALL cipher strings.Be careful when building cipherlists out of lower-level primitives such askRSA or aECDSA as these do overlap with the eNULL ciphers.When in doubt, include !eNULL in your cipherlist.
aNULL
The cipher suites offering no authentication. This is currently the anonymousDH algorithms and anonymous ECDH algorithms. These cipher suites are vulnerableto a ``man in the middle'' attack and so their use is normally discouraged.These are excluded from the DEFAULT ciphers, but included in the ALLciphers.Be careful when building cipherlists out of lower-level primitives such askDHE or AES as these do overlap with the aNULL ciphers.When in doubt, include !aNULL in your cipherlist.
kRSA, RSA
cipher suites using RSA key exchange.
kDHr, kDHd, kDH
cipher suites using DH key agreement and DH certificates signed by CAs with RSAand DSS keys or either respectively.
kDHE, kEDH
cipher suites using ephemeral DH key agreement, including anonymous ciphersuites.
DHE, EDH
cipher suites using authenticated ephemeral DH key agreement.
ADH
anonymous DH cipher suites, note that this does not include anonymous EllipticCurve DH (ECDH) cipher suites.
DH
cipher suites using DH, including anonymous DH, ephemeral DH and fixed DH.
kECDHr, kECDHe, kECDH
cipher suites using fixed ECDH key agreement signed by CAs with RSA and ECDSAkeys or either respectively.
kECDHE, kEECDH
cipher suites using ephemeral ECDH key agreement, including anonymouscipher suites.
ECDHE, EECDH
cipher suites using authenticated ephemeral ECDH key agreement.
AECDH
anonymous Elliptic Curve Diffie Hellman cipher suites.
ECDH
cipher suites using ECDH key exchange, including anonymous, ephemeral andfixed ECDH.
aRSA
cipher suites using RSA authentication, i.e. the certificates carry RSA keys.
aDSS, DSS
cipher suites using DSS authentication, i.e. the certificates carry DSS keys.
aDH
cipher suites effectively using DH authentication, i.e. the certificates carryDH keys.
aECDH
cipher suites effectively using ECDH authentication, i.e. the certificatescarry ECDH keys.
aECDSA, ECDSA
cipher suites using ECDSA authentication, i.e. the certificates carry ECDSAkeys.
kFZA, aFZA, eFZA, FZA
ciphers suites using FORTEZZA key exchange, authentication, encryption or allFORTEZZA algorithms. Not implemented.
TLSv1.2, TLSv1, SSLv3, SSLv2
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.
AES128, AES256, AES
cipher suites using 128 bit AES, 256 bit AES or either 128 or 256 bit AES.
AESGCM
AES in Galois Counter Mode (GCM): these ciphersuites are only supportedin TLS v1.2.
CAMELLIA128, CAMELLIA256, CAMELLIA
cipher suites using 128 bit CAMELLIA, 256 bit CAMELLIA or either 128 or 256 bitCAMELLIA.
3DES
cipher suites using triple DES.
DES
cipher suites using DES (not triple DES).
RC4
cipher suites using RC4.
RC2
cipher suites using RC2.
IDEA
cipher suites using IDEA.
SEED
cipher suites using SEED.
MD5
cipher suites using MD5.
SHA1, SHA
cipher suites using SHA1.
SHA256, SHA384
ciphersuites using SHA256 or SHA384.
aGOST
cipher suites using GOST R 34.10 (either 2001 or 94) for authenticaction(needs an engine supporting GOST algorithms).
aGOST01
cipher suites using GOST R 34.10-2001 authentication.
aGOST94
cipher suites using GOST R 34.10-94 authentication (note that R 34.10-94standard has been expired so use GOST R 34.10-2001)
kGOST
cipher suites, using VKO 34.10 key exchange, specified in the RFC 4357.
GOST94
cipher suites, using HMAC based on GOST R 34.11-94.
GOST89MAC
cipher suites using GOST 28147-89 MAC instead of HMAC.
PSK
cipher suites using pre-shared keys (PSK).
SUITEB128, SUITEB128ONLY, 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 securityrespectively. If used these cipherstrings should appear first in the cipherlist and anything after them is ignored. Setting Suite B mode has additionalconsequences required to comply with RFC6460. In particular the supportedsignature 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 Bcompliant ciphersuites (ECDHE-ECDSA-AES128-GCM-SHA256 andECDHE-ECDSA-AES256-GCM-SHA384) are permissible.
 

CIPHER SUITE NAMES

The following lists give the SSL or TLS cipher suites names from therelevant specification and their OpenSSL equivalents. It should be noted,that several cipher suite names do not include the authentication used,e.g. DES-CBC3-SHA. In these cases, RSA authentication is used. 

SSL v3.0 cipher suites.

 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-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_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. SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA  Not implemented. SSL_FORTEZZA_KEA_WITH_RC4_128_SHA       Not implemented.
 

TLS v1.0 cipher suites.

 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-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_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
 

AES ciphersuites from RFC3268, extending TLS v1.0

 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         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 TLS_DHE_RSA_WITH_AES_128_CBC_SHA        DHE-RSA-AES128-SHA TLS_DHE_RSA_WITH_AES_256_CBC_SHA        DHE-RSA-AES256-SHA

 TLS_DH_anon_WITH_AES_128_CBC_SHA        ADH-AES128-SHA TLS_DH_anon_WITH_AES_256_CBC_SHA        ADH-AES256-SHA
 

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
 

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
 

GOST ciphersuites from draft-chudov-cryptopro-cptls, extending TLS v1.0

Note: these ciphers require an engine which including GOST cryptographicalgorithms, such as the 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
 

Additional Export 1024 and other cipher suites

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
 

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
 

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
 

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
 

Deprecated SSL v2.0 cipher suites.

 SSL_CK_RC4_128_WITH_MD5                 RC4-MD5 SSL_CK_RC4_128_EXPORT40_WITH_MD5        Not implemented. SSL_CK_RC2_128_CBC_WITH_MD5             RC2-CBC-MD5 SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5    Not implemented. SSL_CK_IDEA_128_CBC_WITH_MD5            IDEA-CBC-MD5 SSL_CK_DES_64_CBC_WITH_MD5              Not implemented. SSL_CK_DES_192_EDE3_CBC_WITH_MD5        DES-CBC3-MD5
 

NOTES

Some compiled versions of OpenSSL may not include all the cipherslisted here because some ciphers were excluded at compile time. 

EXAMPLES

Verbose listing of all OpenSSL ciphers including NULL ciphers:

 openssl ciphers -v 'ALL:eNULL'

Include all ciphers except NULL and anonymous DH then sort bystrength:

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

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

 openssl ciphers -v 'ALL:!aNULL'

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

 openssl ciphers -v '3DES:+RSA'

Include all RC4 ciphers but leave out those without authentication:

 openssl ciphers -v 'RC4:!COMPLEMENTOFDEFAULT'

Include all chiphers with RSA authentication but leave out ciphers withoutencryption.

 openssl ciphers -v 'RSA:!COMPLEMENTOFALL'
 

SEE ALSO

s_client(1), s_server(1), ssl(3) 

HISTORY

The COMPLENTOFALL and COMPLEMENTOFDEFAULT selection optionsfor cipherlist strings were added in OpenSSL 0.9.7.The -V option for the ciphers command was added in OpenSSL 1.0.0.


 

Index

NAME
SYNOPSIS
DESCRIPTION
COMMAND OPTIONS
CIPHER LIST FORMAT
CIPHER STRINGS
CIPHER SUITE NAMES
SSL v3.0 cipher suites.
TLS v1.0 cipher suites.
AES ciphersuites from RFC3268, extending TLS v1.0
Camellia ciphersuites from RFC4132, extending TLS v1.0
SEED ciphersuites from RFC4162, extending TLS v1.0
GOST ciphersuites from draft-chudov-cryptopro-cptls, extending TLS v1.0
Additional Export 1024 and other cipher suites
Elliptic curve cipher suites.
TLS v1.2 cipher suites
Pre shared keying (PSK) cipheruites
Deprecated SSL v2.0 cipher suites.
NOTES
EXAMPLES
SEE ALSO
HISTORY

This document was created byman2html,using the manual pages.