A Presence-based GEOPRIV Location Object Format
RFC 4119
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RFC - Proposed Standard
(December 2005; Errata)
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Last updated |
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2013-03-02
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IETF
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plain text
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(None)
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No shepherd assigned
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IESG state |
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RFC 4119 (Proposed Standard)
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Unknown
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Responsible AD |
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Ted Hardie
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mankin@psg.com, rg+ietf@qualcomm.com, andy@hxr.us
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Network Working Group J. Peterson
Request for Comments: 4119 NeuStar
Category: Standards Track December 2005
A Presence-based GEOPRIV Location Object Format
Status of This Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2005).
Abstract
This document describes an object format for carrying geographical
information on the Internet. This location object extends the
Presence Information Data Format (PIDF), which was designed for
communicating privacy-sensitive presence information and which has
similar properties.
Peterson Standards Track [Page 1]
RFC 4119 GEOPRIV Location Object December 2005
Table of Contents
1. Introduction ....................................................2
1.1. Conventions Used in This Document ..........................3
2. Location Object Format ..........................................4
2.1. Baseline PIDF Usage ........................................4
2.2. Extensions to PIDF for Location and Usage Rules ............5
2.2.1. 'location-info' Element .............................5
2.2.2. 'usage-rules' Element ...............................7
2.2.3. 'method' Element ....................................9
2.2.4. 'provided-by' Element ...............................9
2.2.5. Schema Definitions .................................10
2.3. Example Location Objects ..................................14
3. Carrying PIDF in a Using Protocol ..............................15
4. Securing PIDF ..................................................15
5. Security Considerations ........................................17
6. IANA Considerations ............................................17
6.1. 'method' Tokens ...........................................17
6.2. 'provided-by' Elements ....................................18
6.3. URN Sub-Namespace Registration for
urn:ietf:params:xml:ns:pidf:geopriv10 .....................18
7. Acknowledgements ...............................................19
A. Appendix: NENA Provided-by Schema ..............................20
A.1. dataProvider XML Schema ...................................21
Normative References ..............................................22
Informative References ............................................22
1. Introduction
Geographical location information describes a physical position in
the world that may correspond to the past, present, or future
location of a person, event, or device. Numerous applications used
in the Internet today benefit from sharing location information
(including mapping/navigation applications, 'friend finders' on cell
phones, and so on). However, such applications may disclose the
whereabouts of a person in a manner contrary to the user's
preferences. Privacy lapses may result from poor protocol security
(which permits eavesdroppers to capture location information),
inability to articulate or accommodate user preferences, or similar
defects common in existing systems. The privacy concerns surrounding
the unwanted disclosure of a person's physical location are among the
more serious issues that confront users on the Internet.
Consequently, a need has been identified to convey geographical
location information within an object that includes a user's privacy
and disclosure preferences and which is protected by strong
cryptographic security. Previous work [13] has observed that this
problem bears some resemblance to the general problem of
Peterson Standards Track [Page 2]
RFC 4119 GEOPRIV Location Object December 2005
communicating and securing presence information on the Internet.
Presence (defined in [12]) provides a real-time communications
disposition for a user, and thus has similar requirements for
selective distribution and security.
Therefore, this document extends the XML-based Presence Information
Data Format (PIDF [2]) to allow the encapsulation of location
information within a presence document.
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