TLS cipher suites (IANA registry)

Assigned TLS cipher suites from the IANA TLS Cipher Suites registry, one document per assigned value with its DTLS-OK flag, Recommended status (Y = recommended, N = not recommended, D = discouraged), defining references, and any registry comment.

Browse 356 documents Use with your agent

Documents

Showing 337–356 of 356 documents

Document	Version
TLS_RSA_WITH_IDEA_CBC_SHA (0x00,0x07) TLS_RSA_WITH_IDEA_CBC_SHA (0x00,0x07) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use.	v1
TLS_RSA_WITH_NULL_MD5 (0x00,0x01) TLS_RSA_WITH_NULL_MD5 (0x00,0x01) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use.	v1
TLS_RSA_WITH_NULL_SHA (0x00,0x02) TLS_RSA_WITH_NULL_SHA (0x00,0x02) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use.	v1
TLS_RSA_WITH_NULL_SHA256 (0x00,0x3B) TLS_RSA_WITH_NULL_SHA256 (0x00,0x3B) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use.	v1
TLS_RSA_WITH_RC4_128_MD5 (0x00,0x04) TLS_RSA_WITH_RC4_128_MD5 (0x00,0x04) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use.	v1
TLS_RSA_WITH_RC4_128_SHA (0x00,0x05) TLS_RSA_WITH_RC4_128_SHA (0x00,0x05) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use.	v1
TLS_RSA_WITH_SEED_CBC_SHA (0x00,0x96) TLS_RSA_WITH_SEED_CBC_SHA (0x00,0x96) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use.	v1
TLS_SHA256_SHA256 (0xC0,0xB4) TLS_SHA256_SHA256 (0xC0,0xB4) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use.	v1
TLS_SHA384_SHA384 (0xC0,0xB5) TLS_SHA384_SHA384 (0xC0,0xB5) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use.	v1
TLS_SM4_CCM_SM3 (0x00,0xC7) TLS_SM4_CCM_SM3 (0x00,0xC7) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use.	v1
TLS_SM4_GCM_SM3 (0x00,0xC6) TLS_SM4_GCM_SM3 (0x00,0xC6) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use.	v1
TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA (0xC0,0x1C) TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA (0xC0,0x1C) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use.	v1
TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA (0xC0,0x1F) TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA (0xC0,0x1F) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use.	v1
TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA (0xC0,0x22) TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA (0xC0,0x22) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use.	v1
TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA (0xC0,0x1B) TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA (0xC0,0x1B) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use.	v1
TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA (0xC0,0x1E) TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA (0xC0,0x1E) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use.	v1
TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA (0xC0,0x21) TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA (0xC0,0x21) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use.	v1
TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA (0xC0,0x1A) TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA (0xC0,0x1A) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use.	v1
TLS_SRP_SHA_WITH_AES_128_CBC_SHA (0xC0,0x1D) TLS_SRP_SHA_WITH_AES_128_CBC_SHA (0xC0,0x1D) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use.	v1
TLS_SRP_SHA_WITH_AES_256_CBC_SHA (0xC0,0x20) TLS_SRP_SHA_WITH_AES_256_CBC_SHA (0xC0,0x20) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use.	v1

Source, review, and usage

Published on Koskamo by: Koskamo
Version: 357
Documents: 356 documents
Reviewed: 2026-10-05
Last approved change: 2026-10-04
Agent lookups: 0 in the last 90 days
Reuse: IANA TLS Cipher Suites registry (iana.org/assignments/tls-parameters); registry data reproduced verbatim with references
Review status: Published by Koskamo; proposed revisions require Koskamo approval

Original sources are linked on each document. Owner approval records a publishing decision; it does not imply independent fact checking.

Use this dataset from an agent

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retrieve request

curl --fail-with-body 'https://koskamo.com/api/v1/retrieve' -H 'Content-Type: application/json' --data-raw '{"query":"tls-cipher-suites","dataset":"tls-cipher-suites","top_k":3}'

Change history

Every change that reached this dataset. Proposals from contributors land only after Koskamo approves them.

Published by Koskamo2026-10-04
TLS_ECDHE_PSK_WITH_AES_128_CCM_SHA256 (0xD0,0x05) · v1
Published by Koskamo2026-10-04
TLS_ECDHE_PSK_WITH_AES_128_CCM_8_SHA256 (0xD0,0x03) · v1
Published by Koskamo2026-10-04
TLS_ECDHE_PSK_WITH_AES_256_GCM_SHA384 (0xD0,0x02) · v1
Published by Koskamo2026-10-04
TLS_ECDHE_PSK_WITH_AES_128_GCM_SHA256 (0xD0,0x01) · v1
Published by Koskamo2026-10-04
TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xAE) · v1
Published by Koskamo2026-10-04
TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xAD) · v1
Published by Koskamo2026-10-04
TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xAC) · v1
Published by Koskamo2026-10-04
TLS_PSK_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xAB) · v1
Published by Koskamo2026-10-04
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xAA) · v1
Published by Koskamo2026-10-04
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xA9) · v1