NDLI: A distributed privacy-preserving scheme for location-based queries

Content Provider	IEEE Xplore Digital Library
Author	Magkos, E. Kotzanikolaou, P. Sioutas, S. Oikonomou, K.
Copyright Year	2010
Description	Author affiliation: Department of Informatics, Ionian University, Platia Tsirigoti, 49100 Corfu, Greece (Sioutas, S.; Oikonomou, K.) \|\| Department of Informatics, University of Piraeus, 80, Karaoli-Dimitriou, 18534, Piraeus, Greece (Kotzanikolaou, P.) \|\| Department of Informatics Ionian University, Platia Tsirigoti, 49100 Corfu, Greece (Magkos, E.)
Abstract	In this paper we deal with security and historical privacy in Location Based Service (LBS) applications where users submit accurate location samples to an LBS provider. Specifically we propose a distributed scheme that establishes access control while protecting the privacy of a user in both sporadic and continuous LBS queries. Our solution employs a hybrid network architecture where LBS users: (a) are able to communicate with an LBS provider through a network (e.g., cellular) operator, and (b) they are also able to create wireless ad-hoc networks with other peers in order to obtain privacy against an adversary that performs traffic analysis. Our threat model considers the network operator, the LBS provider and other peers, as potential privacy adversaries. For historical privacy we adopt the generic approach of using multiple pseudonyms that are changed frequently. In order to establish untraceability against traffic analysis attacks, a message is not sent directly to the cellular operator, but it is distributed among mobile neighbors who act like mixes and re-encrypt a message before sending it to the LBS provider via the cellular operator. As an extension, we also discuss how to aggregate independent data from different mobile peers before sending them to the LBS provider. This approach may be suitable in applications where aggregate location data are useful (e.g., traffic monitoring and control)
Starting Page	1
Ending Page	6
File Size	139877
Page Count	6
File Format	PDF
ISBN	9781424472642
e-ISBN	9781424472659
e-ISBN	9781424472635
DOI	10.1109/WOWMOM.2010.5534928
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-14
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Context Privacy Protocols Aggregates Mobile communication Encryption
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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