From: The IESG To: IETF-Announce Message-Id: Date: Wed, 14 Sep 2005 17:04:53 -0400 Cc: mmusic chair , Internet Architecture Board , mmusic mailing list , mmusic chair , RFC Editor Subject: [MMUSIC] Protocol Action: 'Session Description Protocol Security Descriptions for Media Streams' to Proposed Standard The IESG has approved the following document: - 'Session Description Protocol Security Descriptions for Media Streams ' as a Proposed Standard This document is the product of the Multiparty Multimedia Session Control Working Group. The IESG contact persons are Jon Peterson and Allison Mankin. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-mmusic-sdescriptions-12.txt Technical Summary This document defines a new 'crypto' attribute for the Session Description Protocol (SDP). This attribute constitutes a means of key exchange within SDP tosecure media streams such as RTP (via sRTP) when used in the context of SIP and the offer/answer model. Working Group Summary The advancement of this document was supported by the MMUSIC WG. It is one of two mechanisms being advanced by MMUSIC to fill the gap left by the "k=" line mechanism of SDP. While the WG could not achieve consensus on a single mechanism, it is hoped that deployment experience will clarify the respective applicability of these two approaches. Protocol Quality This document was reviewed for the IESG by Jon Peterson.