A new Request for Comments is now available in online RFC libraries.
RFC 4189
Title: Requirements for End-to-Middle Security for
the Session Initiation Protocol (SIP)
Author(s): K. Ono, S. Tachimoto
Status: Informational
Date: October 2005
Mailbox: ono.kumiko@lab.ntt.co.jp, kumiko@cs.columbia.edu,
tachimoto.shinya@lab.ntt.co.jp
Pages: 12
Characters: 25842
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-sipping-e2m-sec-reqs-06.txt
URL: ftp://ftp.rfc-editor.org/in-notes/rfc4189.txt
A Session Initiation Protocol (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 the
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.
This document is a product of the Session Initiation Proposal
Investigation Working Group of the IETF.
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute
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