Location Privacy Protection Method On Mobile Social Mode

With the development of smart handheld devices and location technology, users can use location-based services (LBS) to search for nearby friends and strangers to enjoy a better social experience. However, the disclosure of sensitive personal information may hinder the further development of LBS social services. Although many scholars have proposed privacy protection methods for LBS social services, there are challenges in the flexibility of privacy protection and the efficiency of location retrieval in the friend location query. Therefore, this paper proposed an efficient privacy protection method for location retrieval, which not only protects the privacy of users, but also provides a method named association grid to improve the location retrieval efficiency of LBS social services. In addition, by setting the user-defined access control policy proposed by this method, the flexible privacy protection requirements of users can be met. Finally, the effectiveness of the proposed method is verified by simulation experiments.