Technology of Information Security
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2437-2441,2445

Two-level cache location privacy protection scheme based on user grid

Li Shuquan
Li Rui
Zhu Dayong
Xiong Chao
Liu Lei
College of Information & Software Engineering, University of Electronic Science & Technology of China, Chengdu 610054, China

Abstract

This paper proposed a scheme combining user grid and two-level caching technology, which adopted a third-party trusted server-based architecture. When a user submitted a service query request, it replaced the user's real location by a square grid area. In the anonymous server, it divided the map space by a fixed grid of the smallest anonymous area size to improve the cache utilization, and the use of the quadtree storage grid area speeded up the generation of the k-anonymous area. At the same time, it introduced the caching mechanism in the mobile terminal and the third-party trusted server to reduce the times of interaction among the user, the third-party trusted server and the service provider, effectively improving the query response speed and user privacy protection.

Foundation Support

国家自然科学基金资助项目(61370202)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2019.02.0074
Publish at: Application Research of Computers Printed Article, Vol. 37, 2020 No. 8
Section: Technology of Information Security
Pages: 2437-2441,2445
Serial Number: 1001-3695(2020)08-041-2437-05

Publish History

[2020-08-05] Printed Article

Cite This Article

李树全, 李锐, 朱大勇, 等. 基于用户网格和两级缓存的LBS位置隐私保护方案 [J]. 计算机应用研究, 2020, 37 (8): 2437-2441,2445. (Li Shuquan, Li Rui, Zhu Dayong, et al. Two-level cache location privacy protection scheme based on user grid [J]. Application Research of Computers, 2020, 37 (8): 2437-2441,2445. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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