E. Carrara
RFC3711: The Secure Real-time Transport Protocol (SRTP).
RFC3830: MIKEY: Multimedia Internet KEYing.
RFC4383: The Use of Timed Efficient Stream Loss-Tolerant Authentication (TESLA) in the Secure Real-time Transport Protocol (SRTP).
RFC4567: Key Management Extensions for Session Description Protocol (SDP) and Real Time Streaming Protocol (RTSP).