网络与信息安全学报 ›› 2019, Vol. 5 ›› Issue (4): 52-62.doi: 10.11959/j.issn.2096-109x.2019038

• 专栏:隐私保护关键技术及其新型应用模式探索 • 上一篇    下一篇

基于车辆协作的混淆路径轨迹隐私保护机制

赵子文,叶阿勇(),金俊林,孟玲玉   

  1. 福建师范大学数学与信息学院,福建 福州 350007
  • 修回日期:2019-03-18 出版日期:2019-08-15 发布日期:2019-08-20
  • 作者简介:赵子文(1992- )男,山东枣庄人,福建师范大学硕士生,主要研究方向为车联网数据安全与隐私保护。|叶阿勇(1977- ),男,福建漳州人,博士,福建师范大学教授,主要研究方向为信息隐私与安全。|金俊林(1994- )男,江苏盐城人,福建师范大学硕士生,主要研究方向为手机端数据隐私保护。|孟玲玉(1994- ),女,黑龙江安达人,福建师范大学硕士生,主要研究方向为位置隐私保护。
  • 基金资助:
    国家自然科学基金资助项目(61771140);国家自然科学基金资助项目(6187208);国家自然科学基金资助项目(61872090);福建省自然科学基金资助项目(2018J01780)

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)

摘要:

在车联网中,车辆通过和第三方共享位置信息获得基于位置的服务,这可能会导致车辆轨迹隐私泄露。针对该问题,提出基于车辆协作的混淆路径轨迹保护机制。首先,车辆轨迹熵达到自定义的轨迹保护阈值后,减少车辆混淆,解决了路径混淆开销大的问题。然后,设计路径混淆算法来增加车辆在路口路径混淆的机会,提高了车辆轨迹保护程度。最后,仿真实验从轨迹熵和轨迹跟踪成功率验证了该方法的有效性和高效性。

关键词: 车联网, 轨迹保护, 混淆路径, 轨迹熵, 基于位置的服务

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

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