Proximity based services are location based services (LBS) in which the service adaptation depends on the comparison between a given threshold value and the distance between a user and other (possibly moving) entities. While privacy preservation in LBS has lately received much attention, very limited work has been done on privacy-aware proximity based services. This paper describes the main privacy threats that the usage of these services can lead to, and proposes original privacy preservation techniques offering different trade-offs between quality of service and privacy preservation. The properties of the proposed algorithms are formally proved, and an extensive experimental work illustrates the practicality of the approach.
Privacy-aware proximity based services / S. Mascetti, C. Bettini, D. Freni, X.S. Wang, S. Jajodia - In: Proceedings [of the] Tenth international conference on mobile data management : Systems, Services and Middleware, MDM 2009, 18-20 May, 2009, Taipei, TaiwanLos Alamitos : IEEE Computer Society, 2009. - ISBN 9781424441532. - pp. 31-40 (( Intervento presentato al 10. convegno International Conference on Mobile Data Management tenutosi a Taipei, Taiwan nel 2009.
Privacy-aware proximity based services
S. MascettiPrimo
;C. BettiniSecondo
;D. Freni;
2009
Abstract
Proximity based services are location based services (LBS) in which the service adaptation depends on the comparison between a given threshold value and the distance between a user and other (possibly moving) entities. While privacy preservation in LBS has lately received much attention, very limited work has been done on privacy-aware proximity based services. This paper describes the main privacy threats that the usage of these services can lead to, and proposes original privacy preservation techniques offering different trade-offs between quality of service and privacy preservation. The properties of the proposed algorithms are formally proved, and an extensive experimental work illustrates the practicality of the approach.
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