OPENSSL-CIPHERS(1ossl)

📦 version 3.5.0, in opensuse-leap 16.0

✨ NAME ✨

openssl-ciphers — aka OPENSSL-CIPHERS(1ossl) — is literally the SSL cipher display and cipher list command, bestie. It shows you ciphers and helps you build the cipher list vibe you want. 💅

🌸 SYNOPSIS 🌸

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

🦋 DESCRIPTION 🦋

okay so this command takes textual OpenSSL cipher lists and converts them into ordered SSL cipher preference lists. It can be used to figure out the appropriate cipherlist. Main character energy for your TLS setup, no cap. ✨

💖 OPTIONS 💖

  • -help — prints a usage message. Short, sweet, iconic. 🎀
  • -provider name, -provider-path path, -provparam [name:]key=value, -propquery propq — these are the provider options. See “Provider Options” in openssl(1), provider(7), and property(7). Provider lore is in those pages, bestie. 🫶
  • -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. Basically the realistic lineup instead of the whole closet. 👑

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). It’s giving full receipts. 📝
  • -V — like -v, but include the official cipher suite values in hex. Extra official, extra slay. 🔥
  • -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. Standard-name flex. ⭐
  • -convert name — convert a standard cipher name to its OpenSSL name. Name translation service, but make it TLS. 🌈
  • -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. Colon supremacy, honestly. 💅

The cipher string may reference a cipher using its standard name from the IANA TLS Cipher Suites Registry at 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 cipher 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. Combo meal, but cryptographic. 🍔

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. Permanent block, bestie. 💀

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. Soft launch removal. 🙈

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. Rearranging the group chat, not inviting new people. 🫶

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 be 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. Strongest-first sorting vibes. 💪

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 the + 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 💅

okay so here's the whole menu of cipher strings you're allowed to use, and what each one actually means. bestie, this is the glossary — screenshot it.

  • COMPLEMENTOFDEFAULT — everything in ALL that isn't turned on by default. rn that's all the RC4 and anonymous ciphers. lowkey important: this rule does not cover eNULL (because ALL doesn't include it — if you need those, use COMPLEMENTOFALL). also heads up, RC4-based cipher suites are not built into OpenSSL by default (peep the enable-weak-ssl-ciphers option to Configure).
  • ALL — every cipher suite except the eNULL ones (those you gotta enable explicitly if you actually want them 🙈). as of OpenSSL 1.0.0, the ALL cipher suites are sensibly ordered by default. we love a glow-up ✨
  • COMPLEMENTOFALL — the cipher suites ALL doesn't enable, which rn means eNULL. that's it, that's the list.
  • PROFILE=SYSTEM — the enabled cipher suites get loaded from the system crypto policy config file /etc/crypto-policies/back-ends/openssl.config. see also update-crypto-policies(8). this is the default behavior unless an app explicitly sets a cipher list. ngl this one's got a rule: if you use this string in a cipher list config value, it must be at the beginning of the cipher list, otherwise it simply won't be recognized. front of the line or it's not happening 👑
  • HIGH — "high" encryption cipher suites. currently that means key lengths bigger than 128 bits, plus some cipher suites with 128-bit keys.
  • MEDIUM — "medium" encryption cipher suites, currently some of the ones using 128 bit encryption.
  • LOW — "low" encryption cipher suites, currently the ones using 64 or 56 bit encryption algorithms, but excluding export cipher suites. heads up though: all these cipher suites have been removed as of OpenSSL 1.1.0 💀
  • eNULL, NULL — the "NULL" ciphers, a.k.a. the ones offering no encryption at all. because they offer zero encryption and are a straight-up security risk, they're not enabled via DEFAULT or ALL. be careful when you build cipherlists out of lower-level primitives like kRSA or aECDSA, because those do overlap with the eNULL ciphers. when in doubt, throw !eNULL in your cipherlist. seriously. do it. 🫶
  • aNULL — cipher suites offering no authentication. currently the anonymous DH algorithms and anonymous ECDH algorithms. these cipher suites are vulnerable to "man in the middle" attacks so their use is discouraged 😭 they're excluded from DEFAULT but included in ALL. be careful building cipherlists out of lower-level primitives like kDHE or AES — those overlap with aNULL. when in doubt, include !aNULL in your cipherlist.
  • kRSA, aRSA, RSA — cipher suites using RSA key exchange or authentication. RSA is just 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. gone. periodt.
  • kDHE, kEDH, DH — cipher suites using ephemeral DH key agreement, including the 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. and 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.
⚠️ real talk: these cipher strings do not change the negotiated version of SSL or TLS — they only affect the list of available cipher suites. do not get it twisted 💀
  • 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. she's iconic 🔥
  • 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. (yes all four go here, they're a package deal 🎀)
  • 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 you use these, the 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
    • only the two suite B compliant cipher suites (ECDHE-ECDSA-AES128-GCM-SHA256 and ECDHE-ECDSA-AES256-GCM-SHA384) are permissible.
🚨 that's a whole lotta restrictions, so read it twice before you ship it.
  • CBC — all cipher suites using an 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 🌈

okay bestie, the following lists give you the standard SSL or TLS cipher suite names from the relevant specification AND their OpenSSL equivalents. plot twist you can use either standard names or OpenSSL names in cipher lists — or a mix of both. go off 💅

📌 ngl it should be noted that several cipher suite names don't 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

okay bestie, SEED is one of those ciphers that's like… very Korea-core of it, and here's the whole roster. note the v1.0 energy — this is legacy territory, so don't come crying to me if a modern server ghosts you for offering SEED-SHA 💀

        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

✨ heads up, bestie: these ciphers need an engine that includes the GOST cryptographic algorithms — like the gost engine — and that engine is not part of the OpenSSL distribution. so like, you gotta bring your own. no engine, no vibes. 🙈
        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

same deal, same warning, and I need you to actually read it this time: these ciphers require an engine that includes the 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
🔥 small but iconic detail: GOST2012-GOST8912-GOST8912 is literally an alias for two ciphers IDs — the old LEGACY-GOST2012-GOST8912-GOST8912 and the new IANA-GOST2012-GOST8912-GOST8912. so one name, two identities. main character behavior, honestly.

📦 Additional Export 1024 and other cipher suites

note that these ciphers can also be used in SSL v3. yes. SSL v3. we're in the archaeological wing of the museum rn 🏛️
        TLS_DHE_DSS_WITH_RC4_128_SHA            DHE-DSS-RC4-SHA

🦋 Elliptic curve cipher suites

curve girls rise up 🌸 ECDHE, ECDH anon, the whole friend group. peep the AECDH prefixes — the A is for anonymous, and anonymous means no authentication, which is exactly as spicy as it sounds, bestie.

        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

okay THIS is the big one — the main character section, the group chat with 60+ members 😭 SHA256, SHA384, GCM, CCM, CCM_8, DH, DHE, ECDHE, anon… all of it. scroll responsibly.

        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

🎀 read the label, bestie: the CBC modes mentioned in this RFC are not supported. GCM only. don't @ me.
        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

Camellia says hi again, this time HMAC-based and ECDHE-only, and it's giving very "yes I'm still here and I'm still cute" 🫶

        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 squad, assemble ✨ four families of vibes: plain PSK, DHE_PSK, RSA_PSK, ECDHE_PSK, plus all the Camellia remixes. note the NULL ones — those are the no-encryption girlies, so like, know what you're signing up for 💀

        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
💜 and yeah, if you clocked that PSK_WITH_AES_128_GCM_SHA256 and PSK_WITH_AES_256_GCM_SHA384 show up twice in that last block — that's not a me problem, that's just how the list is. copy it verbatim, that's the rule 🫡

…and the rest of the PSK + CCM crew (last chunk, promise):

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

the ChaCha20-Poly1305 girlies, out here extending TLS v1.2 💜 Left column is the long IANA-style name, right column is the cute short one you'll actually type:

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 v1.3 said "new era" and these are the five ✨ — and yeah, the long and short names are literally identical here, no notes:

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

TLS v1.3 integrity-only cipher suites according to RFC 9150

TLS_SHA256_SHA256          TLS_SHA256_SHA256
TLS_SHA384_SHA384          TLS_SHA384_SHA384
okay important bestie 🚨 these ciphers are purely HMAC based and do not provide any confidentiality, so they're disabled by default. They're only available at security level 0. That means no secrecy at all — do not treat these like a normal "secure connection" vibe. 🙈

Older names used by OpenSSL

legacy names, accepted by older releases 👵🏼 — the parenthesised bits are the modern equivalent:

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 might not include all the ciphers listed here — because some of them got excluded at compile time. So if a cipher is missing, it's not you, it's the build, ngl. 🫶

🌸 EXAMPLES 🌸

all of these are literal commands, copy them exactly, no editing the quotes 💅
  • Verbose listing of all OpenSSL ciphers including NULL ciphers:
openssl ciphers -v 'ALL:eNULL'
  • Everything except NULL and anonymous DH, then sorted by strength (the @STRENGTH at the end is doing the heavy lifting):
openssl ciphers -v 'ALL:!ADH:@STRENGTH'
  • Everything except ciphers with no encryption (eNULL) or no authentication (aNULL):
openssl ciphers -v 'ALL:!aNULL'
  • Only 3DES ciphers, with the RSA ones pushed to the end:
openssl ciphers -v '3DES:+RSA'
  • All the RC4 ciphers, minus the ones without authentication:
openssl ciphers -v 'RC4:!COMPLEMENTOFDEFAULT'
  • All ciphers with RSA authentication, minus the ciphers with no encryption:
openssl ciphers -v 'RSA:!COMPLEMENTOFALL'
  • Set security level to 2 and show everything consistent with level 2 (the -s flag is the vibe check here, so only matching ciphers show up):
openssl ciphers -s -v 'ALL:@SECLEVEL=2'

👀 SEE ALSO 👀

🦋 HISTORY 🦋

  • The -V option was added in OpenSSL 1.0.0.
  • The -stdname is only available if OpenSSL is built with tracing enabled (the enable-ssl-trace argument to Configure) — and that's for versions 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.
  • The support for TLS v1.3 integrity-only cipher suites was added in OpenSSL 3.4.

Copyright 2000-2025 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. 🎀

and that's the whole page, bestie — this one's from version 3.5.0, dated 2026-09-25, and it's called OPENSSL-CIPHERS(1ossl). go forth and pick your ciphers wisely 💖✨

📦 where this page comes from