Indexing the positions of continuously moving objects
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
Time Granularities in Databases, Data Mining and Temporal Reasoning
Time Granularities in Databases, Data Mining and Temporal Reasoning
Protecting Respondents' Identities in Microdata Release
IEEE Transactions on Knowledge and Data Engineering
Range and kNN query processing for moving objects in grid model
Mobile Networks and Applications
The new Casper: query processing for location services without compromising privacy
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
Anonymous Usage of Location-Based Services Through Spatial and Temporal Cloaking
Proceedings of the 1st international conference on Mobile systems, applications and services
Buddy tracking - efficient proximity detection among mobile friends
Pervasive and Mobile Computing
Preventing Location-Based Identity Inference in Anonymous Spatial Queries
IEEE Transactions on Knowledge and Data Engineering
Protecting Location Privacy with Personalized k-Anonymity: Architecture and Algorithms
IEEE Transactions on Mobile Computing
Private queries in location based services: anonymizers are not necessary
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Spatial generalisation algorithms for LBS privacy preservation
Journal of Location Based Services - Privacy Aware and Location-Based Mobile Services
ICDE '08 Proceedings of the 2008 IEEE 24th International Conference on Data Engineering
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
Privacy-Aware Proximity Based Services
MDM '09 Proceedings of the 2009 Tenth International Conference on Mobile Data Management: Systems, Services and Middleware
AnonTwist: Nearest Neighbor Querying with Both Location Privacy and K-anonymity for Mobile Users
MDM '09 Proceedings of the 2009 Tenth International Conference on Mobile Data Management: Systems, Services and Middleware
Privacy in Location-Based Applications: Research Issues and Emerging Trends
Privacy in Location-Based Applications: Research Issues and Emerging Trends
Location Privacy Techniques in Client-Server Architectures
Privacy in Location-Based Applications
Longitude: Centralized Privacy-Preserving Computation of Users' Proximity
SDM '09 Proceedings of the 6th VLDB Workshop on Secure Data Management
Private Buddy Search: Enabling Private Spatial Queries in Social Networks
CSE '09 Proceedings of the 2009 International Conference on Computational Science and Engineering - Volume 04
Preventing velocity-based linkage attacks in location-aware applications
Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Louis, Lester and Pierre: three protocols for location privacy
PET'07 Proceedings of the 7th international conference on Privacy enhancing technologies
Private and Flexible Proximity Detection in Mobile Social Networks
MDM '10 Proceedings of the 2010 Eleventh International Conference on Mobile Data Management
Nearest neighbor search with strong location privacy
Proceedings of the VLDB Endowment
Efficient proximity detection among mobile users via self-tuning policies
Proceedings of the VLDB Endowment
Location privacy: going beyond K-anonymity, cloaking and anonymizers
Knowledge and Information Systems
Anonymous user tracking for location-based community services
LoCA'06 Proceedings of the Second international conference on Location- and Context-Awareness
Privacy preservation in the dissemination of location data
ACM SIGKDD Explorations Newsletter
Probabilistic range monitoring of streaming uncertain positions in geosocial networks
SSDBM'12 Proceedings of the 24th international conference on Scientific and Statistical Database Management
A privacy-by-design approach to location sharing
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
Private proximity testing with an untrusted server
Proceedings of the sixth ACM conference on Security and privacy in wireless and mobile networks
Private proximity detection and monitoring with vicinity regions
Proceedings of the 12th International ACM Workshop on Data Engineering for Wireless and Mobile Acess
Private proximity detection for convex polygons
Proceedings of the 12th International ACM Workshop on Data Engineering for Wireless and Mobile Acess
A classification of location privacy attacks and approaches
Personal and Ubiquitous Computing
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A major feature of the emerging geo-social networks is the ability to notify a user when any of his friends (also called buddies) happens to be geographically in proximity. This proximity service is usually offered by the network itself or by a third party service provider (SP) using location data acquired from the users. This paper provides a rigorous theoretical and experimental analysis of the existing solutions for the location privacy problem in proximity services. This is a serious problem for users who do not trust the SP to handle their location data and would only like to release their location information in a generalized form to participating buddies. The paper presents two new protocols providing complete privacy with respect to the SP and controllable privacy with respect to the buddies. The analytical and experimental analysis of the protocols takes into account privacy, service precision, and computation and communication costs, showing the superiority of the new protocols compared to those appeared in the literature to date. The proposed protocols have also been tested in a full system implementation of the proximity service.