draft-ietf-stir-problem-statement-04.txt   draft-ietf-stir-problem-statement-05.txt 
Network Working Group J. Peterson Network Working Group J. Peterson
Internet-Draft NeuStar, Inc. Internet-Draft NeuStar, Inc.
Intended status: Informational H. Schulzrinne Intended status: Informational H. Schulzrinne
Expires: November 10, 2014 Columbia University Expires: November 10, 2014 Columbia University
H. Tschofenig H. Tschofenig
Nokia Siemens Networks
May 9, 2014 May 9, 2014
Secure Telephone Identity Problem Statement and Requirements Secure Telephone Identity Problem Statement and Requirements
draft-ietf-stir-problem-statement-04.txt draft-ietf-stir-problem-statement-05.txt
Abstract Abstract
Over the past decade, Voice over IP (VoIP) systems based on SIP have Over the past decade, Voice over IP (VoIP) systems based on SIP have
replaced many traditional telephony deployments. Interworking VoIP replaced many traditional telephony deployments. Interworking VoIP
systems with the traditional telephone network has reduced the systems with the traditional telephone network has reduced the
overall security of calling party number and Caller ID assurances by overall security of calling party number and Caller ID assurances by
granting attackers new and inexpensive tools to impersonate or granting attackers new and inexpensive tools to impersonate or
obscure calling party numbers when orchestrating bulk commercial obscure calling party numbers when orchestrating bulk commercial
calling schemes, hacking voicemail boxes or even circumventing multi- calling schemes, hacking voicemail boxes or even circumventing multi-
skipping to change at page 25, line 32 skipping to change at page 25, line 32
Department of Computer Science Department of Computer Science
450 Computer Science Building 450 Computer Science Building
New York, NY 10027 New York, NY 10027
US US
Phone: +1 212 939 7004 Phone: +1 212 939 7004
Email: hgs@cs.columbia.edu Email: hgs@cs.columbia.edu
URI: http://www.cs.columbia.edu URI: http://www.cs.columbia.edu
Hannes Tschofenig Hannes Tschofenig
Nokia Siemens Networks Hall, Tirol 6060
Linnoitustie 6 Austria
Espoo 02600
Finland
Phone: +358 (50) 4871445
Email: Hannes.Tschofenig@gmx.net Email: Hannes.Tschofenig@gmx.net
URI: http://www.tschofenig.priv.at URI: http://www.tschofenig.priv.at
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