6. IANA Considerations
6. IANA Considerations
This document defines a new DTLS extension "use_srtp" (value 14) in the TLS ExtensionType registry. This extension is used to negotiate the use of SRTP data protection and to indicate the SRTP protection profiles that are acceptable.
IANA has also created a registry for SRTP protection profile values. The initial entries in this registry are:
| Value | Profile | Reference |
|---|---|---|
| {0x00, 0x01} | SRTP_AES128_CM_HMAC_SHA1_80 | [RFC3711] |
| {0x00, 0x02} | SRTP_AES128_CM_HMAC_SHA1_32 | [RFC3711] |
| {0x00, 0x00} | Reserved | [RFC5764] |
Values in the range {0x00, 0x00} to {0x00, 0xFF} must be assigned via RFC 5226 Standards Action. Values in the range {0x01, 0x00} to {0xFF, 0xFF} should be assigned via RFC 5226 Specification Required.