Journal of the ACM (JACM)
Replication is not needed: single database, computationally-private information retrieval
FOCS '97 Proceedings of the 38th Annual Symposium on Foundations of Computer Science
Practical server privacy with secure coprocessors
IBM Systems Journal - End-to-end security
Location Privacy in Mobile Systems: A Personalized Anonymization Model
ICDCS '05 Proceedings of the 25th IEEE International Conference on Distributed Computing Systems
The new Casper: query processing for location services without compromising privacy
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
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
Anonymous Usage of Location-Based Services Through Spatial and Temporal Cloaking
Proceedings of the 1st international conference on Mobile systems, applications and services
PRIVE: anonymous location-based queries in distributed mobile systems
Proceedings of the 16th international conference on World Wide Web
Private queries in location based services: anonymizers are not necessary
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
ICDE '08 Proceedings of the 2008 IEEE 24th International Conference on Data Engineering
SPIRAL: A Scalable Private Information Retrieval Approach to Location Privacy
MDMW '08 Proceedings of the 2008 Ninth International Conference on Mobile Data Management Workshops
iPDA: Supporting Privacy-Preserving Location-Based Mobile Services
MDM '07 Proceedings of the 2007 International Conference on Mobile Data Management
Hiding Location Information from Location-Based Services
MDM '07 Proceedings of the 2007 International Conference on Mobile Data Management
Almost optimal private information retrieval
PET'02 Proceedings of the 2nd international conference on Privacy enhancing technologies
Louis, Lester and Pierre: three protocols for location privacy
PET'07 Proceedings of the 7th international conference on Privacy enhancing technologies
MOBIHIDE: a mobilea peer-to-peer system for anonymous location-based queries
SSTD'07 Proceedings of the 10th international conference on Advances in spatial and temporal databases
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
Protecting privacy against location-based personal identification
SDM'05 Proceedings of the Second VDLB international conference on Secure Data Management
A formal model of obfuscation and negotiation for location privacy
PERVASIVE'05 Proceedings of the Third international conference on Pervasive Computing
Polylogarithmic private approximations and efficient matching
TCC'06 Proceedings of the Third conference on Theory of Cryptography
A classification of location privacy attacks and approaches
Personal and Ubiquitous Computing
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The ubiquity of smartphones and other location-aware hand-held devices has resulted in a dramatic increase in popularity of location-based services (LBS) tailored to users' locations. The comfort of LBS comes with a privacy cost. Various distressing privacy violations caused by sharing sensitive location information with potentially malicious services have highlighted the importance of location privacy research aiming to protect users' privacy while interacting with LBS. This paper presents a taxonomy of different approaches proposed to enable location privacy in LBS and elaborates on the strengths and weaknesses of each class of approaches.