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

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

	Title		: End-to-middle Security in the Session Initiation Protocol (SIP)
	Author(s)	: K. Ono, S. Tachimoto
	Filename	: draft-ietf-sip-e2m-sec-05.txt
	Pages		: 30
	Date		: 2007-3-7

Some services provided by intermediaries depend on their ability to
   inspect a message body in the Session Initiation Protocol (SIP).
   When sensitive information is included in the message body, a SIP
   User Agent (UA) needs to protect it from other intermediaries than
   those that the UA agreed to disclose it to.  This document proposes a
   mechanism for securing information passed between an end user and
   intermediaries using S/MIME.  It also proposes mechanisms for a UA to
   discover intermediaries which need to inspect an S/MIME-secured
   message body, or to receive the message body with data integrity

   This specification is approved at the proposed standards level due to
   the IANA registration requirements.  Is is of sufficient quality for
   that level, however, the use of this mechanism in this specification
   are considered experimental.

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