A Location Privacy Aware Friend Locator
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Hide & Crypt: Protecting Privacy in Proximity-Based Services
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Longitude: Centralized Privacy-Preserving Computation of Users' Proximity
SDM '09 Proceedings of the 6th VLDB Workshop on Secure Data Management
Preserving location and absence privacy in geo-social networks
CIKM '10 Proceedings of the 19th ACM international conference on Information and knowledge management
Privacy preservation in the dissemination of location data
ACM SIGKDD Explorations Newsletter
The VLDB Journal — The International Journal on Very Large Data Bases
A privacy preserving system for friend locator applications
Proceedings of the 9th ACM international symposium on Mobility management and wireless access
Uniform obfuscation for location privacy
DBSec'12 Proceedings of the 26th Annual IFIP WG 11.3 conference on Data and Applications Security and Privacy
Countering overlapping rectangle privacy attack for moving kNN queries
Information Systems
Private proximity detection and monitoring with vicinity regions
Proceedings of the 12th International ACM Workshop on Data Engineering for Wireless and Mobile Acess
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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.