Protecting location privacy against location-dependent attack in mobile services

Authors:
Xiao Pan;Jianliang Xu;Xiaofeng Meng
Affiliations:
Renmin University of China, Beijing, China;Hong Kong Baptist University, HongKong, China;Renmin University of China, Beijing, China
Venue:
Proceedings of the 17th ACM conference on Information and knowledge management
Year:
2008

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Abstract

Privacy preservation has recently received considerable attention for location-based mobile services. In this paper, we present location-dependent attack resulting from continuous and dependent location updates and propose an incremental clique-based cloaking algorithm, called ICliqueCloak, to defend against location-dependent attack. The main idea is to incrementally maintain maximal cliques for location cloaking in an un-directed graph that takes into consideration the effect of continuous location updates.