Chinese Journal of Network and Information Security ›› 2019, Vol. 5 ›› Issue (4): 52-62.doi: 10.11959/j.issn.2096-109x.2019038

• Special Column:Researches on Key Technologies of Privacy Protection and Its Innovative Applications • Previous Articles     Next Articles

Trajectory privacy protection mechanism of obfuscating paths based on vehicles cooperation

Ziwen ZHAO,Ayong YE(),Junlin JIN,Lingyu MENG   

  1. College of Mathematics and Informatics,Fujian Normal University,Fuzhou 350007,China
  • Revised:2019-03-18 Online:2019-08-15 Published:2019-08-20
  • Supported by:
    The National Natural Science Foundation of China(61771140);The National Natural Science Foundation of China(6187208);The National Natural Science Foundation of China(61872090);The Natural Science Foundation of Fujian Province(2018J01780)

Abstract:

Vehicles sent location information to third parties to obtain location-based services in the Internet of vehicles,which may lead to vehicle trajectory privacy leakage.To address the privacy problem,trajectory privacy protection mechanism of obfuscating paths based on vehicles cooperation was proposed.Firstly,after the vehicle trajectory entropy reaches the custom trajectory protection threshold,the overhead of paths confusion saves by reducing the number of vehicle paths confusion.Then,paths confusion algorithm was designed to increase chances of vehicle paths confusion at intersections,which can improve the degree of vehicle trajectory protection.Finally,the simulation experiment verified the validity and efficiency of the method from the trajectory entropy and trajectory tracking success rate.

Key words: Internet of vehicles, trajectory protection, obfuscating paths, trajectory entropy, location-based service

CLC Number: 

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