A New Internet-Draft is available from the on-line Internet-Drafts
directories.
Title : Dialog Event foR Identity VErification
Author(s) : J. Kuthan, D. Sisalem, R. Coeffic, V. Pascual
Filename : draft-kuthan-sip-derive-00.txt
Pages : 24
Date : 2008-10-27
This document provides a simple mechanism to prevent an attacker from
presenting a forged "From" header field. It offers an end-to-end
identity assumption which does not require any previous association
or trust relationship between administrative domains or the UAs. The
UAS verifies the "From" header by subscribing to the Dialog Event
package [RFC 4235] at the AOR in the "From" header field. If the
entity calling is registered under this AOR, it will confirm that it
is calling by sending some valid dialog state. In this case, the
identity of the caller is considered to be verified.
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