Research Article Nonexposure Accurate Location

Abstract

which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This paper tackles location privacy protection in current location-based services (LBS) wheremobile users have to report their exact location information to an LBS provider in order to obtain their desired services. Location cloaking has been proposed and well studied to protect user privacy. It blurs the user’s accurate coordinate and replaces it with a well-shaped cloaked region. However, to obtain such an anonymous spatial region (ASR), nearly all existent cloaking algorithms require knowing the accurate locations of all users. Therefore, location cloaking without exposing the user’s accurate location to any party is urgently needed. In this paper, we present such two nonexposure accurate location cloaking algorithms. They are designed fo

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