A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Datagram TLS Secure RTP (DTLS-SRTP) Key Transport
Author(s) : D. Wing
Filename : draft-wing-avt-dtls-srtp-key-transport-01.txt
Pages : 19
Date : 2008-02-15
The existing DTLS-SRTP specification allows SRTP keys to be
established between a pair of SRTP endpoints. However, when there
are more than two participants in an RTP session, DTLS-SRTP is unable
to provide a single key for all of the participants. This existing
limitation of DTLS-SRTP prevents deploying DTLS-SRTP in certain
scenarios.
This document describes an extension to DTLS-SRTP which transports
SRTP keying material from one DTLS-SRTP peer to another, so the same
SRTP keying material can be used by multiple DTLS-SRTP peers. This
extension reduces (and often eliminates) the need to key each SRTP
session individually, allowing deployment of several DTLS-SRTP
scenarios.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-wing-avt-dtls-srtp-key-transport-01.txt
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