通信学报2017，Vol.38Issue(9)：76-85,10.DOI:10.11959/j.issn.1000-436x.2017184
基于属性基加密的用户协作连续查询隐私保护策略
CP-ABE based users collaborative privacy protection scheme for continuous query
摘要
Abstract
In location-based services (LBS), as the untrusted LBS server can be seen as an adversary, and it can utilize the attribute as background knowledge to correlate the real location of the user in the set of uncertain locations. Then the ad-versary can gain the location privacy when the user enjoys the snapshot and continuous query through the correlation in-ference attack. In order to cope with this attack, the main scheme in privacy protection is to generalize the attribute and achieve attribute anonymity. However, algorithms of this type usually assumes a trusted third party (TTP) which provides the service of similarity attribute finding and comparing, and it is unpractical in the real environment, as the TTP may become the point of attack or the bottleneck of service and it cannot be considered as the trusted one all the time. Thus, to cope with the correlation inference attack as well as the semi-trusted third party, ciphertext policy attribute based encryp-tion (CP-ABE) and users collaboration based attribute anonymous scheme was proposed. In this scheme, the user coupled achieve location and attribute anonymity. Furthermore, this scheme could also provide security for attacks from the semi-trusted third party as well as semi-trusted collaborative users. At last, security analysis and the experiment results further verify the effectiveness of privacy protection and the efficiency of algorithm execution.关键词
基于位置服务/隐私保护/属性基加密/属性匿名Key words
location-based services/privacy protection/attribute encryption/attribute anonymity分类
信息技术与安全科学引用本文复制引用
张磊,马春光,杨松涛,李增鹏..基于属性基加密的用户协作连续查询隐私保护策略[J].通信学报,2017,38(9):76-85,10.基金项目
国家自然科学基金资助项目(No.61472097) （No.61472097）
高等学校博士学科点专项科研基金资助项目(No.20132304110017) （No.20132304110017）
黑龙江省自然科学基金资助项目(No.F2015022) The National Natural Science Foundation of China (No.61472097), Specialized Research Fund for the Doctoral Program of Higher Education (No.20132304110017), The Natural Science Foundation of Heilongjiang Province (No.F2015022) （No.F2015022）
