Research of query privacy protection algorithm with personalized requirements of privacy
Sun La · Fuzhou daxue xuebao. Ziran kexue ban · 2013
Location privacy protection and query privacy protecton is considered to be equivalent in most existing LBS( location-based service) privacy protection algorithms. However,under the premise of the user location information is known,these algorithms will lead to inferring attack. In this paper,we proposed an algorithm based on quadtree to avoid this kind of attack,and to satisfy the user's personalized query privacy. Furthermore,in order to rerude the size of cloaking area,we optimized the algorithm based on half quadrant defination. Finally,the effectiveness of the algorithms to resist inferring attack is verified by simulation experiment.