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Users' Privacy Protection Scheme in Location Based Services

LBS (Location Based Service) has become more and more popular in recent years. LBS allows Users to explore the surrounding environment. Users need to transmit their information such as position, POI, identification to untrusted service provider who can be considered as an attacker. By using those data, the attacker may obtain users' privacy. Therefore, there is an increasing amount of research to protect the privacy of users when using the LBSs. Our research aims to improve the shortcomings of past protection methods. In the experiment, our approach is compared with other approaches by using entropy and our approach can provide better protection in three kinds of side information applications.