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.
Documents
| Document | Version |
|---|---|
TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 (0xC0,0x9A)TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 (0xC0,0x9A) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 (0xC0,0x9B)TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 (0xC0,0x9B) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xAC)TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xAC) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked recommended for general use. | |
TLS_ECDHE_PSK_WITH_NULL_SHA (0xC0,0x39)TLS_ECDHE_PSK_WITH_NULL_SHA (0xC0,0x39) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDHE_PSK_WITH_NULL_SHA256 (0xC0,0x3A)TLS_ECDHE_PSK_WITH_NULL_SHA256 (0xC0,0x3A) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDHE_PSK_WITH_NULL_SHA384 (0xC0,0x3B)TLS_ECDHE_PSK_WITH_NULL_SHA384 (0xC0,0x3B) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDHE_PSK_WITH_RC4_128_SHA (0xC0,0x33)TLS_ECDHE_PSK_WITH_RC4_128_SHA (0xC0,0x33) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (0xC0,0x12)TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (0xC0,0x12) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xC0,0x13)TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xC0,0x13) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xC0,0x27)TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xC0,0x27) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xC0,0x2F)TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xC0,0x2F) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked recommended for general use. | |
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xC0,0x14)TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xC0,0x14) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xC0,0x28)TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xC0,0x28) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xC0,0x30)TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xC0,0x30) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked recommended for general use. | |
TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256 (0xC0,0x4C)TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256 (0xC0,0x4C) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 (0xC0,0x60)TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 (0xC0,0x60) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384 (0xC0,0x4D)TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384 (0xC0,0x4D) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 (0xC0,0x61)TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 (0xC0,0x61) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 (0xC0,0x76)TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 (0xC0,0x76) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 (0xC0,0x8A)TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 (0xC0,0x8A) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 (0xC0,0x77)TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 (0xC0,0x77) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 (0xC0,0x8B)TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 (0xC0,0x8B) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked not recommended for general use. | |
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xA8)TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xA8) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked recommended for general use. | |
TLS_ECDHE_RSA_WITH_NULL_SHA (0xC0,0x10)TLS_ECDHE_RSA_WITH_NULL_SHA (0xC0,0x10) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. |
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
Use this dataset from an agent
Agents can query it without an account. POST to /api/v1/retrieve, or connect an MCP client and call koskamo_retrieve with dataset: "tls-cipher-suites".
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 Koskamo
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo
TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xAC) · v1
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (0xCC,0xA9) · v1