[Jingle] Fwd: RFC 6189 on ZRTP: Media Path Key Agreement for Unicast Secure RTP

Peter Saint-Andre stpeter at stpeter.im
Mon Apr 11 19:27:07 UTC 2011


It seems appropriate now to (1) make sure that XEP-0262 is consistent
with the published RFC and then (2) start a Last Call on XEP-0262.


-------- Original Message --------
Subject: RFC 6189 on ZRTP: Media Path Key Agreement for Unicast Secure RTP
Date: Mon, 11 Apr 2011 12:20:33 -0700 (PDT)
From: rfc-editor at rfc-editor.org
To: ietf-announce at ietf.org, rfc-dist at rfc-editor.org
CC: rfc-editor at rfc-editor.org

A new Request for Comments is now available in online RFC libraries.

        RFC 6189

        Title:      ZRTP: Media Path Key Agreement
                    for Unicast Secure RTP
        Author:     P. Zimmermann, A. Johnston, Ed.,
                    J. Callas
        Status:     Informational
        Stream:     IETF
        Date:       April 2011
        Mailbox:    prz at mit.edu,
                    alan.b.johnston at gmail.com,
                    jon at callas.org
        Pages:      115
        Characters: 293784
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-zimmermann-avt-zrtp-22.txt

        URL:        http://www.rfc-editor.org/rfc/rfc6189.txt

This document defines ZRTP, a protocol for media path Diffie-Hellman
exchange to agree on a session key and parameters for establishing
unicast Secure Real-time Transport Protocol (SRTP) sessions for Voice
over IP (VoIP) applications.  The ZRTP protocol is media path keying
because it is multiplexed on the same port as RTP and does not
require support in the signaling protocol.  ZRTP does not assume a
Public Key Infrastructure (PKI) or require the complexity of
certificates in end devices.  For the media session, ZRTP provides
confidentiality, protection against man-in-the-middle (MiTM) attacks,
and, in cases where the signaling protocol provides end-to-end
integrity protection, authentication.  ZRTP can utilize a Session
Description Protocol (SDP) attribute to provide discovery and
authentication through the signaling channel.  To provide best effort
SRTP, ZRTP utilizes normal RTP/AVP (Audio-Visual Profile) profiles.
ZRTP secures media sessions that include a voice media stream and can
also secure media sessions that do not include voice by using an
optional digital signature.  This document is not an Internet
Standards Track specification; it is published for informational purposes.

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