通信学报2017，Vol.38Issue(7)：78-88,11.DOI:10.11959/j.issn.1000-436x.2017146
基于保序加密的网格化位置隐私保护方案
Approach of location privacy protection based on order preserving encryption of the grid
摘要
Abstract
The centralized structure of the trusted third party is a major privacy protection structure on location based ser-vices. However, if the central third party server can not be trusted or compromised, users have the risk of leakage of privacy location. Aiming at the above problems, location privacy protection approach based on a user-defined grid to hide location was proposed. The system first automatically converted the query area into a user-defined grid, and then the approach uti-lized order preserving encryption, which made the user's real-time position in the hidden state could still be compared. Be-cause the information in the process of the approach was in a state of encryption, the server could not know the user's loca-tion information, thus improved privacy protection of the user location. The central third party server only need to do simple comparison work, so its processing time overhead would effectively decrease. Security analysis certificate the security of the proposed approach and simulation experimental show the proposed approach can reduce the time cost of the central third party server.关键词
可信第三方/基于位置的服务/位置隐私保护/用户自定义网格/保序加密Key words
trusted third party/location based service/location privacy protection/user-defined grid/order preserving encryption分类
信息技术与安全科学引用本文复制引用
沈楠,贾春福,梁爽,李瑞琪,刘哲理..基于保序加密的网格化位置隐私保护方案[J].通信学报,2017,38(7):78-88,11.基金项目
国家重点基础研究发展计划("973"计划)基金资助项目(No.2013CB834204) （"973"计划）
国家自然科学基金资助项目(No.61272423, No.61672300) （No.61272423, No.61672300）
天津市自然科学基金资助项目(No.16JCYBJC15500, No.17JCZDJC30500) （No.16JCYBJC15500, No.17JCZDJC30500）
中国民航大学信息安全测评中心开放课题基金资助项目(No.CAAC-ISECCA-201702) The National Basic Research Program of China (973 Program)(No.2013CB834204), The National Natural Science Foundation of China (No.61272423, No.61672300), The Natural Science Foundation of Tianjin (No.16JCYBJC15500, No.17JCZDJC30500), Open Project Foundation of Information Security Evaluation Center of Civil Aviation, Civil Aviation Univer-sity of China (No.CAAC-ISECCA-201702) （No.CAAC-ISECCA-201702）
