A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : The SIPSEC Uniform Resource Identifier (URI)
Author(s) : V. Gurbani, et al.
Filename : draft-gurbani-sip-sipsec-00.txt
Pages : 11
Date : 2006-6-19
Currently, in the Session Initiation Protocol (SIP), there does not
exist any means for a user agent client (UAC) to signal to the
destination user agent server (UAS) that an end-to-end secure channel
is to be established. Instead, what is prevelant today in the
protocol is a hop-by-hop security model, wherein intermediaries
forward a request towards the destination without the UAC knowing
whether or not the intermediary behaved in a trusted manner (i.e., it
did not, unknown to the UAC, downgrade the security of the downstream
channel from the intermediary onwards). This document discusses the
security properties of a hop-by-hop model; and in doing so,
formulates some requirements an for an end-to-end model to help drive
a solution.
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