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Title : ZRTP: Extensions to RTP for Diffie-Hellman Key Agreement for SRTP
Author(s) : P. Zimmermann, et al.
Filename : draft-zimmermann-avt-zrtp-02.txt
Pages : 52
Date : 2006-10-24
This document defines ZRTP, RTP (Real-time Transport Protocol) header
extensions for a Diffie-Hellman exchange to agree on a session key
and parameters for establishing Secure RTP (SRTP) sessions. The ZRTP
protocol is completely self-contained in RTP and does not require
support in the signaling protocol or assume a Public Key
Infrastructure (PKI) infrastructure. For the media session, ZRTP
provides confidentiality, protection against Man in the Middle (MitM)
attacks, and, in cases where a secret is available from the signaling
protocol, authentication. ZRTP can utilize three Session Description
Protocol (SDP) attributes to provide discovery and authentication
through the signaling channel.
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