车载自组织网络的隐私保护综述

Survey of Privacy Preservation in VANET

车载自组织网络(Vehicular Ad-hoc Networks,VANET)作为一种智能交通系统,能够提升交通的安全和效率。VANET是通过专用短程通信(Dedicated Short Range Communication,DSRC)为移动车辆提供无线通信的新型网络。在VANET中,车辆可以与其他车辆以及固定在路边的路边单元(Road Side Unit, RSU)进行通信。与此同时,VANET所存在的隐私问题同样不容忽视。VANET具有开放性访问、无线通信等特性,恶意节点攻击可能会导致VANET中用户隐私的泄露,从而严重影响VANET的使用,因此隐私保护是VANET研究的关键。已有的研究成果总结了VANET中多种用户隐私保护方案,然而绝大多数未能对隐私保护方案进行分类,也没有制定出方案评价的详细标准。文章对VANET中的隐私攻击方式进行了分类,并提出了一系列评估标准,从而能够详细评估隐私保护方案的性能。

Vehicular Ad-hoc Networks(VANET)is an intelligent transportation system that helps people improve traffic safety and efficiency.VANET is a new type of network that provides wireless communication for mobile vehicles through dedicated short range communication(DSRC).In VANET,vehicles can communicate with other vehicles and roadside units(RSUs)that are fixed to the roadside.At the same time,the privacy issues faced by VANET cannot be ignored.VANET's features such as open access,wireless communication,and malicious node attacks may cause privacy leakage of users in VANET,which seriously affects the use of VANET.So the privacy preservation is a key topic in VANET.Many papers have summarized schemes for protecting user privacy in VANET,but most of them fail to classify privacy preservation schemes and develop a detailed criteria for evaluating these schemes.The article categorizes the privacy attacks that exist in VANET and proposes a series of evaluation criteria to enable a detailed evaluation of the performance of privacy preservation schemes.