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Writing on locational privacy

Expository writing

Peter Eckersley and I wrote a white paper emphasizing the importance of protecting locational privacy in the face of emerging "location-based" services and outlining various ways to do design such services in ways that respect privacy. Robin Chase and I wrote a related piece for the Huffington Post addressed to schemes to collect "usage taxes" to replace gasoline taxes.

On locational privacy, and how to avoid losing it forever
joint with Peter Eckersley
EFF whitepaper.
online here
National Dialogue on Location Privacy: do it or lose it
joint with Robin Chase
Huffington Post.
online here

Research papers

Raluca Popa, Hari Balakrishnan, and I have been working on practical implementations of solutions to automated tolling and aggregate vehicular statistics in ways which preserve locational privacy. Our solutions to these problems are very lightweight; they can run on in-car devices such as the EZpass and FasTrak transponders. This work builds on earlier (proof of concept, but impractical) work I did with Abhi Shelat, Lauren Keeler, and Robin Chase.

Location privacy and accountability in aggregate statistics for mobile systems
joint with Hari Balakrishnan, Raluca Popa, and Frank Li
18th ACM Conference on Computer and Communications Security, 2011.
published version
VPriv: Protecting privacy in location-based vehicular services
joint with Hari Balakrishnan and Raluca Popa
18th Usenix Security Conference, 2009.
published version
Congestion pricing that respects driver privacy.
joint with Robin Chase
IEEE International Conference on Intelligent Transportation Systems (ITSC), 2005.
published version
Automated traffic enforcement that respects driver privacy.
joint with Abhi Shelat and Lauren Keeler
IEEE International Conference on Intelligent Transportation Systems (ITSC), 2004.
published version