Crowds: anonymity for Web transactions
ACM Transactions on Information and System Security (TISSEC)
Untraceable electronic mail, return addresses, and digital pseudonyms
Communications of the ACM
Robotics-based location sensing using wireless ethernet
Proceedings of the 8th annual international conference on Mobile computing and networking
Location Privacy in Pervasive Computing
IEEE Pervasive Computing
A High Performance Privacy-Oriented Location System
PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
Proceedings of the 1st ACM international workshop on Wireless mobile applications and services on WLAN hotspots
Accuracy characterization for metropolitan-scale Wi-Fi localization
Proceedings of the 3rd international conference on Mobile systems, applications, and services
Anonymous Usage of Location-Based Services Through Spatial and Temporal Cloaking
Proceedings of the 1st international conference on Mobile systems, applications and services
802.11 Wireless Networks: The Definitive Guide, Second Edition
802.11 Wireless Networks: The Definitive Guide, Second Edition
The quest for personal control over mobile location privacy
IEEE Communications Magazine
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Preserving privacy in gps traces via uncertainty-aware path cloaking
Proceedings of the 14th ACM conference on Computer and communications security
Improving wireless privacy with an identifier-free link layer protocol
Proceedings of the 6th international conference on Mobile systems, applications, and services
Anonysense: privacy-aware people-centric sensing
Proceedings of the 6th international conference on Mobile systems, applications, and services
PETS '08 Proceedings of the 8th international symposium on Privacy Enhancing Technologies
AnonySense: Opportunistic and Privacy-Preserving Context Collection
Pervasive '08 Proceedings of the 6th International Conference on Pervasive Computing
Towards Achieving Personalized Privacy for Location-Based Services
Transactions on Data Privacy
Physical Layer Attacks on Unlinkability in Wireless LANs
PETS '09 Proceedings of the 9th International Symposium on Privacy Enhancing Technologies
On the Optimal Placement of Mix Zones
PETS '09 Proceedings of the 9th International Symposium on Privacy Enhancing Technologies
SMILE: encounter-based trust for mobile social services
Proceedings of the 16th ACM conference on Computer and communications security
A distortion-based metric for location privacy
Proceedings of the 8th ACM workshop on Privacy in the electronic society
Preserving privacy in location-based mobile social applications
Proceedings of the Eleventh Workshop on Mobile Computing Systems & Applications
Mobile location tracking in metro areas: malnets and others
Proceedings of the 17th ACM conference on Computer and communications security
Anonymous Communication in Ubiquitous Computing Environments
Wireless Personal Communications: An International Journal
USENIX Security'10 Proceedings of the 19th USENIX conference on Security
AnonySense: A system for anonymous opportunistic sensing
Pervasive and Mobile Computing
Inferring users' online activities through traffic analysis
Proceedings of the fourth ACM conference on Wireless network security
Low-cost mitigation of privacy loss due to radiometric identification
VANET '11 Proceedings of the Eighth ACM international workshop on Vehicular inter-networking
SBNMA '11 Proceedings of the 2011 ACM workshop on Social and behavioural networked media access
A survey on privacy problems and solutions for VANET based on network model
ICA3PP'11 Proceedings of the 11th international conference on Algorithms and architectures for parallel processing - Volume Part II
Friendship-based location privacy in Mobile Social Networks
International Journal of Security and Networks
Verifying location-based services with declassification enforcement
APWeb'12 Proceedings of the 14th Asia-Pacific international conference on Web Technologies and Applications
Protecting location privacy: optimal strategy against localization attacks
Proceedings of the 2012 ACM conference on Computer and communications security
Deanonymizing mobility traces: using social network as a side-channel
Proceedings of the 2012 ACM conference on Computer and communications security
Lightweight secure communication protocols for in-vehicle sensor networks
Proceedings of the 2013 ACM workshop on Security, privacy & dependability for cyber vehicles
SA3: Self-adaptive anonymous authentication for dynamic authentication policies
Future Generation Computer Systems
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The broadcast and tetherless nature of wireless networks and the widespread deployment of Wi-Fi hotspots makes it easy to remotely locate a user by observing her wireless signals. Location is private information and can be used by malicious individuals for blackmail, stalking, and other privacy violations. In this paper, we analyze the problem of location privacy in wireless networks and present a protocol for improving location privacy. Our basic approach is to obfuscate several types of privacy-compromising information revealed by a mobile node, including sender identity, time of transmission, and signal strength. Our design is driven by real-system implementation and field experiments along with analysis and simulations. Our system allows users to choose the level of privacy they desire, thereby increasing the performance of less private users (while not sacrificing private users' privacy at the same time). We evaluated our system based on real-life mobility data and wireless LAN coverage. Our results show that a user of our system can be indistinguishable from a thousand users in the same coverage area.