ECRIT Working Group H. Tschofenig
INTERNET-DRAFT Nokia Siemens Networks
Category: Informational H. Schulzrinne
Expires: September 12, 2013 Columbia University
B. Aboba (ed.)
Microsoft Corporation
13 March 2013
Trustworthy Location
draft-ietf-ecrit-trustworthy-location-05.txt
Abstract
For some location-based applications, such as emergency calling or
roadside assistance, the trustworthiness of location information is
critically important.
This document describes how to convey location in a manner that is
inherently secure and reliable. It also provides guidelines for
assessing the trustworthiness of location information.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on September 12, 2013.
Tschofenig, et. al Informational [Page 1]
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Copyright Notice
Copyright (c) 2013 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4
2. Threats . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1. Location Spoofing . . . . . . . . . . . . . . . . . . . . 6
2.2. Identity Spoofing . . . . . . . . . . . . . . . . . . . . 7
3. Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1. Signed Location by Value . . . . . . . . . . . . . . . . . 8
3.2. Location by Reference . . . . . . . . . . . . . . . . . . 10
3.3. Proxy Adding Location . . . . . . . . . . . . . . . . . . 13
4. Location Trust Assessment . . . . . . . . . . . . . . . . . . 15
5. Security Considerations . . . . . . . . . . . . . . . . . . . 17
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 19
7. References . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1. Informative references . . . . . . . . . . . . . . . . . . 19
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 21
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 22
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1. Introduction
Several public and commercial services depend upon location
information in their operations. This includes emergency services
(such as fire, ambulance and police) as well as commercial services
such as food delivery and roadside assistance.
Services that depend on location commonly experience security issues
today. While prank calls have been a problem for emergency services
dating back to the time of street corner call boxes, with the move to
IP-based emergency services, the ability to launch automated attacks
has increased. As the European Emergency Number Association (EENA)
has noted [EENA]: "False emergency calls divert emergency services
away from people who may be in life-threatening situations and who
need urgent help. This can mean the difference between life and
death for someone in trouble."
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