LBS隐私保护中基于查询范围的匿名区构造方案

发布时间：2018-03-12 09:52

本文选题：基于位置的服务　切入点：k-匿名　出处：《通信学报》2017年09期 　论文类型：期刊论文

【摘要】：由于k-匿名方法不仅能降低用户的计算开销,还能提供准确的查询结果,已被广泛用于位置隐私保护。然而,现有方案在匿名区构造过程中均未考虑位置服务提供商(LSP,location-based service provider)的查询区域面积,导致LBS查询服务质量降低。为了解决上述问题,将用户的查询范围引入到匿名区的构造中,匿名服务器首先生成满足用户隐私保护需求的初始子匿名区,再以LSP的查询区域面积为判定标准进行子匿名区合并。安全性和实验分析表明,所提方案在保护用户隐私的同时,能有效降低LSP的查询区域面积,从而提高LBS查询的服务质量。
[Abstract]:Because k- anonymity method can not only reduce the computing cost of users, but also provide accurate query results, it has been widely used to protect location privacy. In the process of constructing anonymous area, the existing schemes do not consider the area of query area of location service provider (LSP) location-based service provider, which leads to the deterioration of LBS query service quality. In order to solve the above problem, the user's query scope is introduced into the construction of anonymous area. The anonymous server first generates the initial sub-anonymous area to satisfy the user's privacy protection requirements, and then combines the sub-anonymous area with the query area of LSP. The security and experimental analysis show that the proposed scheme not only protects the privacy of the user, but also protects the privacy of the user. It can effectively reduce the area of LSP query area and improve the quality of service of LBS query.
【作者单位】：西安电子科技大学网络与信息安全学院;
【基金】：国家自然科学基金资助项目(No.U170820014,No.61372075,No.U1135002)~~
【分类号】：TP309

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