Secure Location Sharing Using STAMP
Abstract
Location-based services square measure quickly changing into vastly in style. Additionally to services supported users' current location, several potential services believe users' location history, or their spatial-temporal place of origin. Malicious users might idle their spatial-temporal place of origin while not a rigorously designed security system for users to prove their past locations. during this paper, we present the SpatialTemporal provenance Assurance with Mutual Proofs (STAMP) scheme. STAMP is designed for ad-hoc mobile users generating location proofs for each other in a distributed setting. However, it can easily accommodate trusted mobile users and wireless access points. STAMP ensures the integrity and nontransferability of the location proofs and protects users' privacy. A semi-trusted Certification Authority is used to distribute cryptographic keys as well as guard users against collusion by a light-weight entropy-based trust evaluation approach. Our prototype implementation on the Android platform shows that STAMP is low-cost in terms of computational and storage resources. Extensive simulation experiments show that our entropy-based trust model is able to achieve high collusion detection accuracy
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