A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Secure Telephone Identity Revisited Working
Group of the IETF.
Title : Secure Telephone Identity Problem Statement
Author(s) : Jon Peterson
Henning Schulzrinne
Hannes Tschofenig
Filename : draft-ietf-stir-problem-statement-00.txt
Pages : 23
Date : 2013-10-04
Abstract:
Over the past decade, Voice over IP (VoIP) systems based on SIP have
replaced many traditional telephony deployments. Interworking VoIP
systems with the traditional telephone network has reduced the
overall security of calling party number and Caller ID assurances by
granting attackers new and inexpensive tools to impersonate or
obscure calling party numbers when orchestrating bulk commercial
calling schemes, hacking voicemail boxes or even circumventing multi-
factor authentication systems trusted by banks. Despite previous
attempts to provide a secure assurance of the origin of SIP
communications, we still lack of effective standards for identifying
the calling party in a VoIP session. This document examines the
reasons why providing identity for telephone numbers on the Internet
has proven so difficult, and shows how changes in the last decade may
provide us with new strategies for attaching a secure identity to SIP
sessions.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-stir-problem-statement
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-stir-problem-statement-00
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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