Pseudonym Management Through Blockchain: Cost-Efficient Privacy Preservation on Intelligent Transportation Systems
Pseudonym Management Through Blockchain: Cost-Efficient Privacy Preservation on Intelligent Transportation Systems
复制标题
DOI：
10.1109/access.2019.2921605
复制
发表时间：
2019-01-01
期刊：
影响因子：
3.9
通讯作者：
Huth, Michael
中科院分区：
文献类型：
--
作者：
Bao, Shihan;Cao, Yue;Huth, Michael
对智能交通系统既定领域的研究正在演变为车联网，这是一个快速发展的研究领域，部分原因是基于网络物理系统的快速变化。需要认识到，现有的车辆通信系统容易受到需要解决的隐私漏洞的影响。一个实际的挑战是，许多车辆通信应用程序和服务使用包含车辆身份、位置和其他个人数据的基本安全消息。处理此隐私问题的流行方式是利用假名更改方案来保护车辆的身份和位置。然而，许多这样的计划遭受的成本增长和证书管理的困难与生成和存储的缩略词的数量增加，投下的经济可行性的怀疑，该方法。我们提出了一个分散的基于区块链的假名管理解决方案，克服了这些限制。该方案包括假名分布和洗牌操作，允许重用现有的假名不同的车辆。这里报告的结果，包括从我们的模拟，表明该计划可以重用现有的匿名，并实现了更好的匿名程度比现有的计划以更低的成本。
Research into the established area of the intelligent transportation system is evolving into the Internet of Vehicles, a fast-moving research area, fuelled in part by rapid changes based on cyber-physical systems. It needs to be recognized that existing vehicular communication systems are susceptible to privacy vulnerabilities which require addressing. Apractical challenge is that many vehicular communication applications and services make use of basic safety messages that contain the identity of the vehicle, location, and other personal data. A popular way of dealing with this privacy issue is to utilize a pseudonym change scheme to protect the vehicle's identity and location. However, many such schemes suffer that the cost grows and the certificate management difficulty raises with the number of pseudonyms generated and stored, casting doubt of the economic feasibility of that approach. We propose a decentralized blockchain-based solution for pseudonym management that overcomes these limitations. This scheme consists of pseudonym distribution and a shuffle operation, allowing the reuse of existing pseudonyms to different vehicles. The results reported here, including those from our simulations, demonstrate that the proposed scheme can reuse existing pseudonyms and achieve a better degree of anonymity at a lower cost than existing schemes.