End-to-End Identity Important in the Session Initiation Protocol (SIP)

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Last updated 2009-02-25
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This document surveys existing mechanisms in the Session Initiation Protocol (SIP) for identifying and authenticating the source of a SIP request (or caller identification). It describes how identification and authentication are not always end-to-end and the problems that this can lead to, particularly since media security based on techniques such as DTLS-SRTP is dependent on end-to-end authenticated identification of parties. This work is being discussed on the sip@ietf.org mailing list.


John Elwell (john.elwell@siemens.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)