I-D Action:draft-ietf-sip-dtls-srtp-framework-06.txt

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Session Initiation Protocol Working Group of the IETF.


	Title           : Framework for Establishing an SRTP Security Context using DTLS
	Author(s)       : J. Fischl, et al.
	Filename        : draft-ietf-sip-dtls-srtp-framework-06.txt
	Pages           : 38
	Date            : 2009-02-28

This document specifies how to use the Session Initiation Protocol
(SIP) to establish an Secure Real-time Transport Protocol (SRTP)
security context using the Datagram Transport Layer Security (DTLS)
protocol.  It describes a mechanism of transporting a fingerprint
attribute in the Session Description Protocol (SDP) that identifies
the key that will be presented during the DTLS handshake.  The key
exchange travels along the media path as opposed to the signaling
path.  The SIP Identity mechanism can be used to protect the
integrity of the fingerprint attribute from modification by
intermediate proxies.

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