The IESG has received a request from the Secure Telephone Identity Revisited WG (stir) to consider the following document: - 'Secure Telephone Identity Problem Statement' <draft-ietf-stir-problem-statement-03.txt> as Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2014-02-20. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. 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 file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-stir-problem-statement/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-stir-problem-statement/ballot/ No IPR declarations have been submitted directly on this I-D.
