Proposes OLBSQ scheme for privacy-preserving LBS without TTP, with constant query costs, service provider learns only query size, and security reduced to complexity assumptions.
Blind filtering at third parties: An efficient privacy-preserving framework for location-based services
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Oblivious Location-Based Service Query
Proposes OLBSQ scheme for privacy-preserving LBS without TTP, with constant query costs, service provider learns only query size, and security reduced to complexity assumptions.