http://www.rfc-editor.org/rfc/rfc6309.txt
RFC 6309: IANA Rules for MIKEY (Multimedia Internet KEYing), J. Arkko, A. Keranen, J. Mattsson2011-08-01T23:00:00-00:00This document clarifies and relaxes the IANA rules for Multimedia Internet KEYing (MIKEY). This document updates RFCs 3830, 4563, 5410, and 6043; it obsoletes RFC 4909. [STANDARDS-TRACK]