A location privacy protection method based on cipher-text retrieval in cloud environment

doi:10.1002/spy2.250

	A location privacy protection method based on cipher-text retrieval in cloud environment
	Zhang, Yongbing 1,2; Zhang, Qiuyu 1; Jiang, Yilong 2; Yan, Yan 1
刊名	SECURITY AND PRIVACY
	2022-07-01
关键词	cipher-text retrieval location privacy protection location-based service Morton code top-k sorting
ISSN号	2475-6725
DOI	10.1002/spy2.250
英文摘要	In order to improve the efficiency of location query and the effect of privacy protection in cloud environment, a location privacy protection method based on cipher-text retrieval was proposed. Firstly, the spatial area is divided into several square grids, and the big Morton code of each location is calculated, the spatial area in the grid is divided again, and the small Morton code of each location is calculated. Secondly, the location data is encrypted by the combination of public key encryption and scrambling encryption, and then outsourced to the cloud server. When querying the location data of the interest points, the query request is sent to the data owner. After obtaining the query trapdoor and the private key, the query trapdoor is sent to the location data server for query. On the server side, the interest points in the region are found according to the cipher-text matching, and the cipher-text top-k sorting is implemented. Finally, the cipher-text query results are decrypted into plaintext by the private key. Experimental results show that the proposed method ensures the location data privacy, and improves query efficiency. At the same time, the balance between privacy protection security and query quality is achieved.
WOS研究方向	Computer Science ; Telecommunications
语种	英语
出版者	WILEY
WOS记录号	WOS:000820602800001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158968]
专题	计算机与通信学院
作者单位	1.Lanzhou Univ Technol, Sch Comp & Commun, 287 Lan Gong Ping Rd, Lanzhou 730050, Peoples R China; 2.Gansu Inst Mech & Elect Engn, Tianshui, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yongbing,Zhang, Qiuyu,Jiang, Yilong,et al. A location privacy protection method based on cipher-text retrieval in cloud environment[J]. SECURITY AND PRIVACY,2022.
APA	Zhang, Yongbing,Zhang, Qiuyu,Jiang, Yilong,&Yan, Yan.(2022).A location privacy protection method based on cipher-text retrieval in cloud environment.SECURITY AND PRIVACY.
MLA	Zhang, Yongbing,et al."A location privacy protection method based on cipher-text retrieval in cloud environment".SECURITY AND PRIVACY (2022).