对等通信辅助下抗攻击的位置隐私保护方法  

Location privacy-preserving method against attacks under P2P communication

作　　者：孙丹丹[1,2] 罗永龙[1,2] 范国婷[1,2] 郭良敏[1,2] 郑孝遥[1,2] SUN Dandan;LUO Yonglong;FAN Guoting;GUO Liangmin;ZHENG Xiaoyao(Department of Computer Science and Technology,Anhui Normal University,Wuhu,Anhui 241003,China;Engineering Technology Research Center of Network and Information Security,Anhui Normal University,Wuhu,Anhui 241003,China)

机构地区：[1]安徽师范大学计算机科学与技术系,安徽芜湖241003 [2]安徽师范大学网络与信息安全工程技术研究中心,安徽芜湖241003

出　　处：《计算机工程与应用》2018年第9期75-83,共9页Computer Engineering and Applications

基　　金：国家自然科学基金(No.61370050);安徽省自然科学基金(No.1508085QF133);安徽省高校省级自然科学研究重点项目(No.KJ2014A088)

摘　　要：针对目前位置隐私保护方法的不足,提出一种对等通信辅助下可抗攻击的位置隐私保护方法。该方法使用多用户协作构建匿名组代替匿名区域,保证位置k-匿名;将速度引入匿名组的构建,使组内用户不局限于周边;让组内用户保持模糊的连通,以此抵御一般恶意攻击;通过缓存机制增加匿名组的可重用性,以此抵御连续查询攻击,并减少开销。实验结果表明,该方法可以达到位置k-匿名,匿名成功率较高,能够抵御一般恶意攻击和连续查询攻击,且可减少系统开销。Aiming at the shortage of the current methods,a location privacy-preserving method against attacks under P2P communication is proposed.The method builds anonymous group instead of anonymous area to ensure location k-anonymity through user’s collaboration.The introduction of speed makes that group members are not limited to the surrounding in the construction of anonymous group into the process of constructing.Group members keep fuzzy connectivity to resist malicious attacks.Through cache mechanism,anonymous group is reusable to resist multi-query attack and reduce overhead.The experimental results show that the method can achieve highly success rate of k-anonymity,resist those attacks and reduce the system overhead.

关 键 词：位置隐私保护 对等通信 匿名组 缓存机制 恶意攻击 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]