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PET
2007
Springer

Louis, Lester and Pierre: Three Protocols for Location Privacy

8 years 1 months ago
Louis, Lester and Pierre: Three Protocols for Location Privacy
Abstract. Location privacy is of utmost concern for location-based services. It is the property that a person’s location is revealed to other entities, such as a service provider or the person’s friends, only if this release is strictly necessary and authorized by the person. We study how to achieve location privacy for a service that alerts people of nearby friends. Here, location privacy guarantees that users of the service can learn a friend’s location if and only if the friend is actually nearby. We introduce three protocols—Louis, Lester and Pierre—that provide location privacy for such a service. The key advantage of our protocols is that they are distributed and do not require a separate service provider that is aware of people’s locations. The evaluation of our sample implementation demonstrates that the protocols are sufficiently fast to be practical.
Ge Zhong, Ian Goldberg, Urs Hengartner
Added 09 Jun 2010
Updated 09 Jun 2010
Type Conference
Year 2007
Where PET
Authors Ge Zhong, Ian Goldberg, Urs Hengartner
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