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openssl-ciphers

NAME

openssl-ciphers - SSL cipher display and cipher list command

SYNOPSIS

openssl ciphers [-help] [-s] [-v] [-V] [-ssl3] [-tls1] [-tls1_1] [-tls1_2] [-tls1_3] [-s] [-psk] [-srp] [-stdname] [-convert name] [-ciphersuites val] [-provider name] [-provider-path path] [-propquery propq] [cipherlist]

DESCRIPTION

This command converts textual OpenSSL cipher lists into ordered SSL cipher preference lists. It can be used to determine the appropriate cipherlist.

OPTIONS

  • -help

    Print a usage message.

  • -provider name

  • -provider-path path

  • -propquery propq

    See "Provider Options" in openssl(1), provider(7), and property(7).

  • -s

    Only list supported ciphers: those consistent with the security level, and minimum and maximum protocol version. This is closer to the actual cipher list an application will support.

    PSK and SRP ciphers are not enabled by default: they require -psk or -srp to enable them.

    It also does not change the default list of supported signature algorithms.

    On a server the list of supported ciphers might also exclude other ciphers depending on the configured certificates and presence of DH parameters.

    If this option is not used then all ciphers that match the cipherlist will be listed.

  • -psk

    When combined with -s includes cipher suites which require PSK.

  • -srp

    When combined with -s includes cipher suites which require SRP. This option is deprecated.

  • -v

    Verbose output: For each cipher suite, list details as provided by SSL_CIPHER_description(3).

  • -V

    Like -v, but include the official cipher suite values in hex.

  • -tls1_3, -tls1_2, -tls1_1, -tls1, -ssl3

    In combination with the -s option, list the ciphers which could be used if the specified protocol were negotiated. Note that not all protocols and flags may be available, depending on how OpenSSL was built.

  • -stdname

    Precede each cipher suite by its standard name.

  • -convert name

    Convert a standard cipher name to its OpenSSL name.

  • -ciphersuites val

    Sets the list of TLSv1.3 ciphersuites. This list will be combined with any TLSv1.2 and below ciphersuites that have been configured. The format for this list is a simple colon (":") separated list of TLSv1.3 ciphersuite names. By default this value is:

    TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256

  • cipherlist

    A cipher list of TLSv1.2 and below ciphersuites to convert to a cipher preference list. This list will be combined with any TLSv1.3 ciphersuites that have been configured. If it is not included then 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 cipher string may reference a cipher using its standard name from the IANA TLS Cipher Suites Registry (https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-4).

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, or cipher suites of a certain type. For example SHA1 represents all ciphers suites using the digest algorithm SHA1 and SSLv3 represents all SSL v3 algorithms.

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

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 are explicitly stated.

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

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

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

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

The cipher string @SECLEVEL=n can be used at any point to set the security level to n, which should be a number between zero and five, inclusive. See SSL_CTX_set_security_level(3) for a description of what each level means.

The cipher list can be prefixed with the DEFAULT keyword, which enables the default cipher list as defined below. Unlike cipher strings, this prefix may not be combined with other strings using + character. For example, DEFAULT+DES is not valid.

The content of the default list is determined at compile time and normally corresponds to ALL:!COMPLEMENTOFDEFAULT:!eNULL.

CIPHER STRINGS

The following is a list of all permitted cipher strings and their meanings.

  • COMPLEMENTOFDEFAULT

    The ciphers included in ALL, but not enabled by default. Currently this includes all RC4 and anonymous ciphers. Note that this rule does not cover eNULL, which is not included by ALL (use COMPLEMENTOFALL if necessary). Note that RC4 based cipher suites are not built into OpenSSL by default (see the enable-weak-ssl-ciphers option to Configure).

  • ALL

    All cipher suites except the eNULL ciphers (which must be explicitly enabled if needed). As of OpenSSL 1.0.0, the ALL cipher suites are sensibly ordered by default.

  • COMPLEMENTOFALL

    The cipher suites not enabled by ALL, currently eNULL.

  • HIGH

    "High" encryption cipher suites. This currently means those with key lengths larger than 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" encryption cipher suites, currently those using 64 or 56 bit encryption algorithms but excluding export cipher suites. All these cipher suites have been removed as of OpenSSL 1.1.0.

  • eNULL, NULL

    The "NULL" ciphers that is those offering no encryption. Because these offer no encryption at all and are a security risk they are not enabled via either the DEFAULT or ALL cipher strings. Be careful when building cipherlists out of lower-level primitives such as kRSA 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 anonymous DH algorithms and anonymous ECDH algorithms. These cipher suites are vulnerable to "man in the middle" attacks and so their use is discouraged. These are excluded from the DEFAULT ciphers, but included in the ALL ciphers. Be careful when building cipherlists out of lower-level primitives such as kDHE or AES as these do overlap with the aNULL ciphers. When in doubt, include !aNULL in your cipherlist.

  • kRSA, aRSA, RSA

    Cipher suites using RSA key exchange or authentication. RSA is an alias for kRSA.

  • kDHr, kDHd, kDH

    Cipher suites using static DH key agreement and DH certificates signed by CAs with RSA and DSS keys or either respectively. All these cipher suites have been removed in OpenSSL 1.1.0.

  • kDHE, kEDH, DH

    Cipher suites using ephemeral DH key agreement, including anonymous cipher suites.

  • DHE, EDH

    Cipher suites using authenticated ephemeral DH key agreement.

  • ADH

    Anonymous DH cipher suites, note that this does not include anonymous Elliptic Curve DH (ECDH) cipher suites.

  • kEECDH, kECDHE, ECDH

    Cipher suites using ephemeral ECDH key agreement, including anonymous cipher suites.

  • ECDHE, EECDH

    Cipher suites using authenticated ephemeral ECDH key agreement.

  • AECDH

    Anonymous Elliptic Curve Diffie-Hellman cipher suites.

  • 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 carry DH keys. All these cipher suites have been removed in OpenSSL 1.1.0.

  • aECDSA, ECDSA

    Cipher suites using ECDSA authentication, i.e. the certificates carry ECDSA keys.

  • TLSv1.2, TLSv1.0, SSLv3

    Lists cipher suites which are only supported in at least TLS v1.2, TLS v1.0 or SSL v3.0 respectively. Note: there are no cipher suites specific to TLS v1.1. Since this is only the minimum version, if, for example, TLSv1.0 is negotiated then both TLSv1.0 and SSLv3.0 cipher suites are available.

    Note: these cipher strings do not change the negotiated version of SSL or TLS, they only affect the list of available cipher suites.

  • 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 cipher suites are only supported in TLS v1.2.

  • AESCCM, AESCCM8

    AES in Cipher Block Chaining - Message Authentication Mode (CCM): these cipher suites are only supported in TLS v1.2. AESCCM references CCM cipher suites using both 16 and 8 octet Integrity Check Value (ICV) while AESCCM8 only references 8 octet ICV.

  • ARIA128, ARIA256, ARIA

    Cipher suites using 128 bit ARIA, 256 bit ARIA or either 128 or 256 bit ARIA.

  • CAMELLIA128, CAMELLIA256, CAMELLIA

    Cipher suites using 128 bit CAMELLIA, 256 bit CAMELLIA or either 128 or 256 bit CAMELLIA.

  • CHACHA20

    Cipher suites using ChaCha20.

  • 3DES

    Cipher suites using triple DES.

  • DES

    Cipher suites using DES (not triple DES). All these cipher suites have been removed in OpenSSL 1.1.0.

  • 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

    Cipher suites using SHA256 or SHA384.

  • aGOST

    Cipher suites using GOST R 34.10 (either 2001 or 94) for authentication (needs an engine supporting GOST algorithms).

  • aGOST01

    Cipher suites using GOST R 34.10-2001 authentication.

  • 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

    All cipher suites using pre-shared keys (PSK).

  • kPSK, kECDHEPSK, kDHEPSK, kRSAPSK

    Cipher suites using PSK key exchange, ECDHE_PSK, DHE_PSK or RSA_PSK.

  • aPSK

    Cipher suites using PSK authentication (currently all PSK modes apart from RSA_PSK).

  • SUITEB128, SUITEB128ONLY, SUITEB192

    Enables suite B mode of 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 cipher suites (ECDHE-ECDSA-AES128-GCM-SHA256 and ECDHE-ECDSA-AES256-GCM-SHA384) are permissible.

  • CBC

    All cipher suites using encryption algorithm in Cipher Block Chaining (CBC) mode. These cipher suites are only supported in TLS v1.2 and earlier. Currently it's an alias for the following cipherstrings: SSL_DES, SSL_3DES, SSL_RC2, SSL_IDEA, SSL_AES128, SSL_AES256, SSL_CAMELLIA128, SSL_CAMELLIA256, SSL_SEED.

CIPHER SUITE NAMES

The following lists give the standard SSL or TLS cipher suites names from the relevant specification and their OpenSSL equivalents. You can use either standard names or OpenSSL names in cipher lists, or a mix of both.

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_WITH_RC4_128_MD5                RC4-MD5
SSL_RSA_WITH_RC4_128_SHA                RC4-SHA
SSL_RSA_WITH_IDEA_CBC_SHA               IDEA-CBC-SHA
SSL_RSA_WITH_3DES_EDE_CBC_SHA           DES-CBC3-SHA

SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA        DH-DSS-DES-CBC3-SHA
SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA        DH-RSA-DES-CBC3-SHA
SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA       DHE-DSS-DES-CBC3-SHA
SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA       DHE-RSA-DES-CBC3-SHA

SSL_DH_anon_WITH_RC4_128_MD5            ADH-RC4-MD5
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_WITH_RC4_128_MD5                RC4-MD5
TLS_RSA_WITH_RC4_128_SHA                RC4-SHA
TLS_RSA_WITH_IDEA_CBC_SHA               IDEA-CBC-SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA           DES-CBC3-SHA

TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA        Not implemented.
TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA        Not implemented.
TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA       DHE-DSS-DES-CBC3-SHA
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA       DHE-RSA-DES-CBC3-SHA

TLS_DH_anon_WITH_RC4_128_MD5            ADH-RC4-MD5
TLS_DH_anon_WITH_3DES_EDE_CBC_SHA       ADH-DES-CBC3-SHA

AES cipher suites 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 cipher suites 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 cipher suites 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 cipher suites from draft-chudov-cryptopro-cptls, extending TLS v1.0

Note: these ciphers require an engine which including GOST cryptographic algorithms, such as the gost engine, which isn't part of 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

GOST cipher suites, extending TLS v1.2

Note: these ciphers require an engine which including GOST cryptographic algorithms, such as the gost engine, which isn't part of the OpenSSL distribution.

TLS_GOSTR341112_256_WITH_28147_CNT_IMIT GOST2012-GOST8912-GOST8912
TLS_GOSTR341112_256_WITH_NULL_GOSTR3411 GOST2012-NULL-GOST12

Note: GOST2012-GOST8912-GOST8912 is an alias for two ciphers ID old LEGACY-GOST2012-GOST8912-GOST8912 and new IANA-GOST2012-GOST8912-GOST8912

Additional Export 1024 and other cipher suites

Note: these ciphers can also be used in SSL v3.

TLS_DHE_DSS_WITH_RC4_128_SHA            DHE-DSS-RC4-SHA

Elliptic curve cipher suites

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_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

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

ARIA cipher suites from RFC6209, extending TLS v1.2

Note: the CBC modes mentioned in this RFC are not supported.

TLS_RSA_WITH_ARIA_128_GCM_SHA256          ARIA128-GCM-SHA256
TLS_RSA_WITH_ARIA_256_GCM_SHA384          ARIA256-GCM-SHA384
TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256      DHE-RSA-ARIA128-GCM-SHA256
TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384      DHE-RSA-ARIA256-GCM-SHA384
TLS_DHE_DSS_WITH_ARIA_128_GCM_SHA256      DHE-DSS-ARIA128-GCM-SHA256
TLS_DHE_DSS_WITH_ARIA_256_GCM_SHA384      DHE-DSS-ARIA256-GCM-SHA384
TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256  ECDHE-ECDSA-ARIA128-GCM-SHA256
TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384  ECDHE-ECDSA-ARIA256-GCM-SHA384
TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256    ECDHE-ARIA128-GCM-SHA256
TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384    ECDHE-ARIA256-GCM-SHA384
TLS_PSK_WITH_ARIA_128_GCM_SHA256          PSK-ARIA128-GCM-SHA256
TLS_PSK_WITH_ARIA_256_GCM_SHA384          PSK-ARIA256-GCM-SHA384
TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256      DHE-PSK-ARIA128-GCM-SHA256
TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384      DHE-PSK-ARIA256-GCM-SHA384
TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256      RSA-PSK-ARIA128-GCM-SHA256
TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384      RSA-PSK-ARIA256-GCM-SHA384

Camellia HMAC-Based cipher suites from RFC6367, extending TLS v1.2

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_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256   ECDHE-RSA-CAMELLIA128-SHA256
TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384   ECDHE-RSA-CAMELLIA256-SHA384

Pre-shared keying (PSK) cipher suites

PSK_WITH_NULL_SHA                         PSK-NULL-SHA
DHE_PSK_WITH_NULL_SHA                     DHE-PSK-NULL-SHA
RSA_PSK_WITH_NULL_SHA                     RSA-PSK-NULL-SHA

PSK_WITH_RC4_128_SHA                      PSK-RC4-SHA
PSK_WITH_3DES_EDE_CBC_SHA                 PSK-3DES-EDE-CBC-SHA
PSK_WITH_AES_128_CBC_SHA                  PSK-AES128-CBC-SHA
PSK_WITH_AES_256_CBC_SHA                  PSK-AES256-CBC-SHA

DHE_PSK_WITH_RC4_128_SHA                  DHE-PSK-RC4-SHA
DHE_PSK_WITH_3DES_EDE_CBC_SHA             DHE-PSK-3DES-EDE-CBC-SHA
DHE_PSK_WITH_AES_128_CBC_SHA              DHE-PSK-AES128-CBC-SHA
DHE_PSK_WITH_AES_256_CBC_SHA              DHE-PSK-AES256-CBC-SHA

RSA_PSK_WITH_RC4_128_SHA                  RSA-PSK-RC4-SHA
RSA_PSK_WITH_3DES_EDE_CBC_SHA             RSA-PSK-3DES-EDE-CBC-SHA
RSA_PSK_WITH_AES_128_CBC_SHA              RSA-PSK-AES128-CBC-SHA
RSA_PSK_WITH_AES_256_CBC_SHA              RSA-PSK-AES256-CBC-SHA

PSK_WITH_AES_128_GCM_SHA256               PSK-AES128-GCM-SHA256
PSK_WITH_AES_256_GCM_SHA384               PSK-AES256-GCM-SHA384
DHE_PSK_WITH_AES_128_GCM_SHA256           DHE-PSK-AES128-GCM-SHA256
DHE_PSK_WITH_AES_256_GCM_SHA384           DHE-PSK-AES256-GCM-SHA384
RSA_PSK_WITH_AES_128_GCM_SHA256           RSA-PSK-AES128-GCM-SHA256
RSA_PSK_WITH_AES_256_GCM_SHA384           RSA-PSK-AES256-GCM-SHA384

PSK_WITH_AES_128_CBC_SHA256               PSK-AES128-CBC-SHA256
PSK_WITH_AES_256_CBC_SHA384               PSK-AES256-CBC-SHA384
PSK_WITH_NULL_SHA256                      PSK-NULL-SHA256
PSK_WITH_NULL_SHA384                      PSK-NULL-SHA384
DHE_PSK_WITH_AES_128_CBC_SHA256           DHE-PSK-AES128-CBC-SHA256
DHE_PSK_WITH_AES_256_CBC_SHA384           DHE-PSK-AES256-CBC-SHA384
DHE_PSK_WITH_NULL_SHA256                  DHE-PSK-NULL-SHA256
DHE_PSK_WITH_NULL_SHA384                  DHE-PSK-NULL-SHA384
RSA_PSK_WITH_AES_128_CBC_SHA256           RSA-PSK-AES128-CBC-SHA256
RSA_PSK_WITH_AES_256_CBC_SHA384           RSA-PSK-AES256-CBC-SHA384
RSA_PSK_WITH_NULL_SHA256                  RSA-PSK-NULL-SHA256
RSA_PSK_WITH_NULL_SHA384                  RSA-PSK-NULL-SHA384
PSK_WITH_AES_128_GCM_SHA256               PSK-AES128-GCM-SHA256
PSK_WITH_AES_256_GCM_SHA384               PSK-AES256-GCM-SHA384

ECDHE_PSK_WITH_RC4_128_SHA                ECDHE-PSK-RC4-SHA
ECDHE_PSK_WITH_3DES_EDE_CBC_SHA           ECDHE-PSK-3DES-EDE-CBC-SHA
ECDHE_PSK_WITH_AES_128_CBC_SHA            ECDHE-PSK-AES128-CBC-SHA
ECDHE_PSK_WITH_AES_256_CBC_SHA            ECDHE-PSK-AES256-CBC-SHA
ECDHE_PSK_WITH_AES_128_CBC_SHA256         ECDHE-PSK-AES128-CBC-SHA256
ECDHE_PSK_WITH_AES_256_CBC_SHA384         ECDHE-PSK-AES256-CBC-SHA384
ECDHE_PSK_WITH_NULL_SHA                   ECDHE-PSK-NULL-SHA
ECDHE_PSK_WITH_NULL_SHA256                ECDHE-PSK-NULL-SHA256
ECDHE_PSK_WITH_NULL_SHA384                ECDHE-PSK-NULL-SHA384

PSK_WITH_CAMELLIA_128_CBC_SHA256          PSK-CAMELLIA128-SHA256
PSK_WITH_CAMELLIA_256_CBC_SHA384          PSK-CAMELLIA256-SHA384

DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256      DHE-PSK-CAMELLIA128-SHA256
DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384      DHE-PSK-CAMELLIA256-SHA384

RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256      RSA-PSK-CAMELLIA128-SHA256
RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384      RSA-PSK-CAMELLIA256-SHA384

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

ChaCha20-Poly1305 cipher suites, 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

TLS v1.3 cipher suites

TLS_AES_128_GCM_SHA256                     TLS_AES_128_GCM_SHA256
TLS_AES_256_GCM_SHA384                     TLS_AES_256_GCM_SHA384
TLS_CHACHA20_POLY1305_SHA256               TLS_CHACHA20_POLY1305_SHA256
TLS_AES_128_CCM_SHA256                     TLS_AES_128_CCM_SHA256
TLS_AES_128_CCM_8_SHA256                   TLS_AES_128_CCM_8_SHA256

Older names used by OpenSSL

The following names are accepted by older releases:

SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA    EDH-RSA-DES-CBC3-SHA (DHE-RSA-DES-CBC3-SHA)
SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA    EDH-DSS-DES-CBC3-SHA (DHE-DSS-DES-CBC3-SHA)

NOTES

Some compiled versions of OpenSSL may not include all the ciphers listed 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 by 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'

Include all RC4 ciphers but leave out those without authentication:

openssl ciphers -v 'RC4:!COMPLEMENTOFDEFAULT'

Include all ciphers with RSA authentication but leave out ciphers without encryption.

openssl ciphers -v 'RSA:!COMPLEMENTOFALL'

Set security level to 2 and display all ciphers consistent with level 2:

openssl ciphers -s -v 'ALL:@SECLEVEL=2'

SEE ALSO

openssl(1), openssl-s_client(1), openssl-s_server(1), ssl(7)

HISTORY

The -V option was added in OpenSSL 1.0.0.

The -stdname is only available if OpenSSL is built with tracing enabled (enable-ssl-trace argument to Configure) before OpenSSL 1.1.1.

The -convert option was added in OpenSSL 1.1.1.

Support for standard IANA names in cipher lists was added in OpenSSL 3.2.0.

Copyright 2000-2024 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at https://www.openssl.org/source/license.html.