通信学报 ›› 2022, Vol. 43 ›› Issue (9): 134-147.doi: 10.11959/j.issn.1000-436x.2022167

• 学术论文 • 上一篇    下一篇

VANET中基于区块链的分布式匿名认证方案

冯霞1, 崔凯平1, 谢晴晴2, 王良民3   

  1. 1 江苏大学汽车与交通工程学院,江苏 镇江 212013
    2 江苏大学计算机科学与通信工程学院,江苏 镇江 212013
    3 东南大学网络空间安全学院,江苏 南京 211110
  • 修回日期:2022-08-17 出版日期:2022-09-25 发布日期:2022-09-01
  • 作者简介:冯霞(1983- ),女,江苏镇江人,博士,江苏大学副教授、硕士生导师,主要研究方向为物联网安全认证、区块链、应用密码学等
    崔凯平(1997- ),男,山东潍坊人,江苏大学硕士生,主要研究方向为车联网安全认证、区块链、应用密码学等
    谢晴晴(1990- ),女,安徽宿州人,博士,江苏大学副教授、硕士生导师,主要研究方向为云计算、区块链、应用密码学等
    王良民(1977- ),男,安徽潜山人,博士,东南大学教授、博士生导师,主要研究方向为信息安全、区块链、物联网、密码学等
  • 基金资助:
    国家自然科学基金资助项目(61902157);国家自然科学基金资助项目(62002139)

Distributed anonymous authentication scheme based on the blockchain in VANET

Xia FENG1, Kaiping CUI1, Qingqing XIE2, Liangmin WANG3   

  1. 1 School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China
    2 School of Computer Science and Communication Engineering, Jiangsu University, Zhenjiang 212013, China
    3 School of Cyber Science and Engineering, Southeast University, Nanjing 211110, China
  • Revised:2022-08-17 Online:2022-09-25 Published:2022-09-01
  • Supported by:
    The National Natural Science Foundation of China(61902157);The National Natural Science Foundation of China(62002139)

摘要:

身份认证是阻止恶意车辆传播虚假交通信息的第一道防线。然而由于车载自组网(VANET)中网络带宽和计算能力有限,现有方案不能满足对车辆身份的高效认证需求,也无法实现对恶意车辆的快速匿名追溯。鉴于此,提出一种基于区块链的分布式匿名认证方案。该方案利用零知识证明对VANET中车辆进行快速匿名认证,并采用非线性对的聚合签名实现快速批量认证,有效减少认证过程中产生的计算量。另外,区域性可信机构(RTA)可以实现对恶意车辆身份的匿名追溯,并基于区块链对其身份进行快速撤销;还可以基于本地密钥对车辆的短期匿名身份进行及时更新,保证车辆的匿名性和签名的新鲜性。安全分析与仿真实验表明,所提方案能够满足匿名性、不可链接性等多种安全需求,并能有效降低计算与通信开销,比同类方案在性能上至少提升27.28%。

关键词: 车载自组网, 匿名认证, 区块链, 零知识证明, 非线性对

Abstract:

Identity authentication is the first line of defense against malicious vehicles spreading false traffic information.However, due to the limited network bandwidth and computing power in the vehicle ad-hoc network (VANET), the existing schemes cannot meet the requirements of efficient authentication, nor can achieve fast and anonymous traceability of malicious vehicles.In view of this, a distributed anonymous authentication scheme based on the blockchain was proposed.The zero-knowledge proof was used to quickly and anonymously authenticate the identity of vehicles in VANET, and the pairing-free-based aggregating signature was used to provide fast batch verification, effectively reducing the computational burden generated during the authentication process.In addition, the regional trusted authority (RTA) could realize the anonymous traceability of malicious vehicle identities, and quickly revoke their identities by using the block chain.It could also update the short-term anonymous identities of vehicles based on local keys in time to ensure that vehicles anonymity and freshness of signatures.Security analysis and simulation show that the proposed scheme can satisfy various security requirements such as anonymity and unlinkability, and can effectively reduce computing and communication overhead, which is at least 27.28% higher in performance than similar schemes.

Key words: VANET, anonymous authentication, blockchain, zero-knowledge proof, pairing-free

中图分类号: 

No Suggested Reading articles found!