A peer-to-peer spatial cloaking algorithm for anonymous location-based service
GIS '06 Proceedings of the 14th annual ACM international symposium on Advances in geographic information systems
A TTP-free protocol for location privacy in location-based services
Computer Communications
Tinycasper: a privacy-preserving aggregate location monitoring system in wireless sensor networks
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Anonymizing moving objects: how to hide a MOB in a crowd?
Proceedings of the 12th International Conference on Extending Database Technology: Advances in Database Technology
A mobility camouflaging evaluation tool
Proceedings of the 47th Annual Southeast Regional Conference
Privacy in location-based services: a system architecture perspective
SIGSPATIAL Special
Privacy-Aware Location Database Service for Granular Queries
WISTP '09 Proceedings of the 3rd IFIP WG 11.2 International Workshop on Information Security Theory and Practice. Smart Devices, Pervasive Systems, and Ubiquitous Networks
Movement data anonymity through generalization
Proceedings of the 2nd SIGSPATIAL ACM GIS 2009 International Workshop on Security and Privacy in GIS and LBS
Location privacy enforcement in a location-based services platform
CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
Private location-based information retrieval through user collaboration
Computer Communications
Wireless positioning techniques - a developers update
W2GIS'07 Proceedings of the 7th international conference on Web and wireless geographical information systems
Location privacy in geospatial decision-making
DNIS'07 Proceedings of the 5th international conference on Databases in networked information systems
Blind evaluation of nearest neighbor queries using space transformation to preserve location privacy
SSTD'07 Proceedings of the 10th international conference on Advances in spatial and temporal databases
Movement Data Anonymity through Generalization
Transactions on Data Privacy
Privacy enhancements for mobile and social uses of consumer electronics
IEEE Communications Magazine
Generalizing PIR for practical private retrieval of public data
DBSec'10 Proceedings of the 24th annual IFIP WG 11.3 working conference on Data and applications security and privacy
Anonymity preserving framework for location-based information services
Proceedings of the International Conference on Management of Emergent Digital EcoSystems
Trajectory anonymity in publishing personal mobility data
ACM SIGKDD Explorations Newsletter
Measuring query privacy in location-based services
Proceedings of the second ACM conference on Data and Application Security and Privacy
Microaggregation for database and location privacy
NGITS'06 Proceedings of the 6th international conference on Next Generation Information Technologies and Systems
An open design privacy-enhancing platform supporting location-based applications
Proceedings of the 6th International Conference on Ubiquitous Information Management and Communication
Information Sciences: an International Journal
Privacy-aware personalization for mobile advertising
Proceedings of the 2012 ACM conference on Computer and communications security
Privacy protection in location-based services through a public-key privacy homomorphism
EuroPKI'07 Proceedings of the 4th European conference on Public Key Infrastructure: theory and practice
Middleware for location privacy: an overview
Proceedings of the 2012 ACM Research in Applied Computation Symposium
Location privacy policy management system
ICICS'12 Proceedings of the 14th international conference on Information and Communications Security
Proceedings of the Third ACM SIGSPATIAL International Workshop on Querying and Mining Uncertain Spatio-Temporal Data
A Privacy Preserving Method Using Privacy Enhancing Techniques for Location Based Services
Mobile Networks and Applications
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The wide spread of location-based services results in a strong market for location-detection devices (e.g., GPS-like devices, RFIDs, handheld devices, and cellular phones). Examples of location-based services include location-aware emergency service, location-based advertisement, live traffic reports, and location-based store finder. However, location-detection devices pose a major privacy threat on its users where it transmits private information (i.e., the location) to the server who may be untrustworthy. The existing model of location-based applications trades service with privacy where if a user wants to keep her private location information, she has to turn off her location-detection device, i.e., unsubscribe from the service. This paper tackles this model in a way that protects the user privacy while keeping the functionality of location-based services. The main idea is to employ a trusted third party, the Location Anonymizer, that expands the user location into a spatial region such that: (1) The exact user location can lie anywhere in the spatial region, and (2) There are k other users within the expanded spatial region so that each user is k-anonymous. The location-based database server is equipped with additional functionalities that support spatio-temporal queries based on the spatial region received from the location anonymizer rather than the exact point location received from the user.