计算机工程与应用 ›› 2018, Vol. 54 ›› Issue (6): 62-67.DOI: 10.3778/j.issn.1002-8331.1610-0378

• 网络、通信与安全 • 上一篇    下一篇

车载自组网中信任感知的隐私保护策略

王  进,张永慧,顾  翔   

  1. 南通大学 计算机科学与技术学院,江苏 南通 226019
  • 出版日期:2018-03-15 发布日期:2018-04-03

Trust-aware privacy-preserving scheme for VANET

WANG Jin, ZHANG Yonghui, GU Xiang   

  1. School of Computer Science and Technology, Nantong University, Nantong, Jiangsu 226019, China
  • Online:2018-03-15 Published:2018-04-03

摘要: 车载自组网中的信任管理系统要求用户的声誉相关信息充分公开,这会给用户隐私带来隐患。为解决信任与隐私的冲突问题,提出“假名-声誉值”协同变换策略。新策略以k匿名隐私保护理论和用户中心策略为基础,同时考虑了用户个性化隐私保护需求,提出了PK-PCS策略。仿真实验表明PK-PCS策略在车辆隐私保护、满意度、数据损失方面整体优于现有PCS策略和K-PCS策略。PK-PCS既保持了信任的有用性,又同时保护了用户隐私。

关键词: 车载自组网, 信任管理, 声誉, 隐私保护, 假名

Abstract: The trust management systems in Vehicular Ad-hoc Networks(VANETs) require users to disclose their reputation-related information, which will bring dangers to user privacy. To deal with the collusion between trust and privacy, a novel “pseudonym-reputation” collaborative change scheme is presented in this paper. This scheme is based on the k-anonymity theory and user-centric strategy. The personalized privacy protection is considered and a PK-PCS strategy is presented. Experiments show that the PK-PCS strategy is better than the traditional Pseudonym Change Strategy(PCS) strategy and K-anonymity Pseudonym Change Strategy(K-PCS) strategy in privacy preservation, satisfaction and data loss. The PK-PCS not only maintains the usefulness of trust, but also protects the privacy of users.

Key words: Vehicular Ad-hoc Network(VANET), trust management, reputation, privacy preservation, pseudonym