DocumentCode :
2177249
Title :
A personalized two-tier cloaking scheme for privacy-aware location-based services
Author :
Niu, Ben ; Xiaoyan Zhu ; Weihao Li ; Hui Li ; Yingjuan Wang ; Zongqing Lu
Author_Institution :
Nat. Key Lab. of Integrated Networks Services, Xidian Univ., Xi´an, China
fYear :
2015
fDate :
16-19 Feb. 2015
Firstpage :
94
Lastpage :
98
Abstract :
The ubiquity of modern mobile devices with GPS modules and Internet connectivity such as 3G/4G techniques have resulted in rapid development of Location-Based Services (LBSs). However, users enjoy the convenience provided by the untrusted LBS server at the cost of their privacy. To protect user´s sensitive information against adversaries with side information, we design a personalized spatial cloaking scheme, termed TTcloak, which provides k-anonymity for user´s location privacy, 1-diversity for query privacy and desired size of cloaking region for mobile users in LBSs, simultaneously. TTcloak uses Dummy Query Determining (DQD) algorithm and Dummy Location Determining (DLD) algorithm to find out a set of realistic cells as candidates, and employs a CR-refinement Module (CRM) to guarantee that dummy users are assigned into the cloaking region with desired size. Finally, thorough security analysis and empirical evaluation results verify our proposed TTcloak.
Keywords :
3G mobile communication; 4G mobile communication; Global Positioning System; Internet; data privacy; mobile computing; mobility management (mobile radio); telecommunication security; telecommunication services; 3G techniques; 4G techniques; CR-refinement module; CRM; DLD algorithm; DQD algorithm; GPS modules; Internet connectivity; LBS server; TTcloak; cloaking region; dummy location determining algorithm; dummy query determining algorithm; dummy users; mobile users; modern mobile devices; personalized spatial cloaking scheme; personalized two-tier cloaking scheme; privacy-aware location-based services; query privacy; security analysis; user location privacy; Algorithm design and analysis; Complexity theory; Entropy; Mobile radio mobility management; Privacy; Servers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computing, Networking and Communications (ICNC), 2015 International Conference on
Conference_Location :
Garden Grove, CA
Type :
conf
DOI :
10.1109/ICCNC.2015.7069322
Filename :
7069322
Link To Document :
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