I-D ACTION:draft-ietf-sipping-e2m-sec-reqs-05.txt

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

	Title		: Requirements for End-to-middle Security for the Session Initiation Protocol (SIP)
	Author(s)	: K. Ono, S. Tachimoto
	Filename	: draft-ietf-sipping-e2m-sec-reqs-05.txt
	Pages		: 14
	Date		: 2004-12-9
	
A SIP User Agent (UA) does not always trust all intermediaries in its
   request path to inspect its message bodies and/or headers contained
   in its message. The UA might want to protect the message bodies and/
   or headers from intermediaries except those that provide services
   based on its content.  This situation requires a mechanism called
   'end-to-middle security' to secure information passed between the UA
   and intermediaries, which does not interfere with end-to-end
   security. This document defines a set of requirements for a mechanism
   to achieve end-to-middle security.

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