Security without identification: transaction systems to make big brother obsolete
Communications of the ACM
The knowledge complexity of interactive proof-systems
STOC '85 Proceedings of the seventeenth annual ACM symposium on Theory of computing
Minimum disclosure proofs of knowledge
Journal of Computer and System Sciences - 27th IEEE Conference on Foundations of Computer Science October 27-29, 1986
Communications of the ACM
k-anonymity: a model for protecting privacy
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems
Number-theoretic constructions of efficient pseudo-random functions
Journal of the ACM (JACM)
Location Privacy in Mobile Systems: A Personalized Anonymization Model
ICDCS '05 Proceedings of the 25th IEEE International Conference on Distributed Computing Systems
Enhancing Security and Privacy in Traffic-Monitoring Systems
IEEE Pervasive Computing
Secure function evaluation with ordered binary decision diagrams
Proceedings of the 13th ACM conference on Computer and communications security
CarTel: a distributed mobile sensor computing system
Proceedings of the 4th international conference on Embedded networked sensor systems
Anonymous Usage of Location-Based Services Through Spatial and Temporal Cloaking
Proceedings of the 1st international conference on Mobile systems, applications and services
Fairplay—a secure two-party computation system
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
Tor: the second-generation onion router
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
Preserving privacy in gps traces via uncertainty-aware path cloaking
Proceedings of the 14th ACM conference on Computer and communications security
Virtual trip lines for distributed privacy-preserving traffic monitoring
Proceedings of the 6th international conference on Mobile systems, applications, and services
Protocols for secure computations
SFCS '82 Proceedings of the 23rd Annual Symposium on Foundations of Computer Science
Cabernet: vehicular content delivery using WiFi
Proceedings of the 14th ACM international conference on Mobile computing and networking
How to protect privacy in floating car data systems
Proceedings of the fifth ACM international workshop on VehiculAr Inter-NETworking
Inference attacks on location tracks
PERVASIVE'07 Proceedings of the 5th international conference on Pervasive computing
On the anonymity of periodic location samples
SPC'05 Proceedings of the Second international conference on Security in Pervasive Computing
Balancing accountability and privacy using e-cash (extended abstract)
SCN'06 Proceedings of the 5th international conference on Security and Cryptography for Networks
Private memoirs of a smart meter
Proceedings of the 2nd ACM Workshop on Embedded Sensing Systems for Energy-Efficiency in Building
PrETP: privacy-preserving electronic toll pricing
USENIX Security'10 Proceedings of the 19th USENIX conference on Security
SEC'11 Proceedings of the 20th USENIX conference on Security
SPEcTRe: spot-checked private ecash tolling at roadside
Proceedings of the 10th annual ACM workshop on Privacy in the electronic society
Privacy and accountability for location-based aggregate statistics
Proceedings of the 18th ACM conference on Computer and communications security
Sherlock holmes' evil twin: on the impact of global inference for online privacy
Proceedings of the 2011 workshop on New security paradigms workshop
Selective location blinding using hash chains
SP'11 Proceedings of the 19th international conference on Security Protocols
Impeding individual user profiling in shopper loyalty programs
FC'11 Proceedings of the 15th international conference on Financial Cryptography and Data Security
Formal analysis of privacy for anonymous location based services
TOSCA'11 Proceedings of the 2011 international conference on Theory of Security and Applications
Efficient HMAC-based secure communication for VANETs
Computer Networks: The International Journal of Computer and Telecommunications Networking
MLAS: Multiple level authentication scheme for VANETs
Ad Hoc Networks
EuroPKI'11 Proceedings of the 8th European conference on Public Key Infrastructures, Services, and Applications
Enabling private conversations on Twitter
Proceedings of the 28th Annual Computer Security Applications Conference
Privacy by design: a formal framework for the analysis of architectural choices
Proceedings of the third ACM conference on Data and application security and privacy
Cell-based privacy-friendly roadpricing
Computers & Mathematics with Applications
Leveraging graphical models to improve accuracy and reduce privacy risks of mobile sensing
Proceeding of the 11th annual international conference on Mobile systems, applications, and services
Proceedings of the Twenty-Fourth ACM Symposium on Operating Systems Principles
ACM SIGOPS 24th Symposium on Operating Systems Principles
Verifying computations with state
Proceedings of the Twenty-Fourth ACM Symposium on Operating Systems Principles
PPREM: Privacy Preserving REvocation Mechanism for Vehicular Ad Hoc Networks
Computer Standards & Interfaces
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A variety of location-based vehicular services are currently being woven into the national transportation infrastructure in many countries. These include usage- or congestion-based road pricing, traffic law enforcement, traffic monitoring, "pay-as-you-go" insurance, and vehicle safety systems. Although such applications promise clear benefits, there are significant potential violations of the location privacy of drivers under standard implementations (i.e., GPS monitoring of cars as they drive, surveillance cameras, and toll transponders). In this paper, we develop and evaluate VPriv, a system that can be used by several such applications without violating the location privacy of drivers. The starting point is the observation that in many applications, some centralized server needs to compute a function of a user's path--a list of time-position tuples. VPriv provides two components: 1) the first practical protocol to compute path functions for various kinds of tolling, speed and delay estimation, and insurance calculations in a way that does not reveal anything more than the result of the function to the server, and 2) an out-of-band enforcement mechanism using random spot checks that allows the server and application to handle misbehaving users. Our implementation and experimental evaluation of VPriv shows that a modest infrastructure of a few multi-core PCs can easily serve 1 million cars. Using analysis and simulation based on real vehicular data collected over one year from the CarTel project's testbed of 27 taxis running in the Boston area, we demonstrate that VPriv is resistant to a range of possible attacks.