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_ECDH_anon_WITH_3DES_EDE_CBC_SHA (0xC0,0x17)TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA (0xC0,0x17) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_anon_WITH_AES_128_CBC_SHA (0xC0,0x18)TLS_ECDH_anon_WITH_AES_128_CBC_SHA (0xC0,0x18) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_anon_WITH_AES_256_CBC_SHA (0xC0,0x19)TLS_ECDH_anon_WITH_AES_256_CBC_SHA (0xC0,0x19) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_anon_WITH_NULL_SHA (0xC0,0x15)TLS_ECDH_anon_WITH_NULL_SHA (0xC0,0x15) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_anon_WITH_RC4_128_SHA (0xC0,0x16)TLS_ECDH_anon_WITH_RC4_128_SHA (0xC0,0x16) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA (0xC0,0x03)TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA (0xC0,0x03) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA (0xC0,0x04)TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA (0xC0,0x04) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 (0xC0,0x25)TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 (0xC0,0x25) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 (0xC0,0x2D)TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 (0xC0,0x2D) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA (0xC0,0x05)TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA (0xC0,0x05) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 (0xC0,0x26)TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 (0xC0,0x26) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 (0xC0,0x2E)TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 (0xC0,0x2E) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256 (0xC0,0x4A)TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256 (0xC0,0x4A) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256 (0xC0,0x5E)TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256 (0xC0,0x5E) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384 (0xC0,0x4B)TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384 (0xC0,0x4B) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384 (0xC0,0x5F)TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384 (0xC0,0x5F) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 (0xC0,0x74)TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 (0xC0,0x74) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 (0xC0,0x88)TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 (0xC0,0x88) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 (0xC0,0x75)TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 (0xC0,0x75) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 (0xC0,0x89)TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 (0xC0,0x89) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_NULL_SHA (0xC0,0x01)TLS_ECDH_ECDSA_WITH_NULL_SHA (0xC0,0x01) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_ECDSA_WITH_RC4_128_SHA (0xC0,0x02)TLS_ECDH_ECDSA_WITH_RC4_128_SHA (0xC0,0x02) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA (0xC0,0x0D)TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA (0xC0,0x0D) is an assigned cipher suite in the IANA TLS Cipher Suites registry, marked discouraged for general use. | |
TLS_ECDH_RSA_WITH_AES_128_CBC_SHA (0xC0,0x0E)TLS_ECDH_RSA_WITH_AES_128_CBC_SHA (0xC0,0x0E) 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.
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- Published by Koskamo
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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