北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2024, Vol. 47 ›› Issue (2): 97-102.

• 研究报告 • 上一篇    下一篇

一种用于动态车辆保险评估的批量验证签名方案

李旭1,赵金东2,王璇1,宋永超1,卢云宏1   

  1. 1. 山东省烟台市莱山区烟台大学
    2. 烟台大学
  • 收稿日期:2023-01-06 修回日期:2023-06-27 出版日期:2024-04-28 发布日期:2024-01-24
  • 通讯作者: 卢云宏 E-mail:luyunhong@ytu.edu.cn
  • 基金资助:
    国家自然科学基金;山东省自然科学基金

Certificateless batch verification signature scheme based on dynamic vehicle insurance assessment

  • Received:2023-01-06 Revised:2023-06-27 Online:2024-04-28 Published:2024-01-24
  • Supported by:
    the National Natural Science Foundation of China;The Natural Science Foundation of Shandong

摘要: 针对动态车辆保险评估中的隐私需求, 设计了一种可转换的环签名方案。首先, 结合椭圆曲线线性运算性质进行方案设计,提高了对同一群组的多个签名进行验证的效率;其次, 设计了匿名签名到普通签名的选择性转换机制,用于验证用户是否为数据属主。实验结果表明, 在签名用户数量较大的情况下,所提方案的签名验证效率比其他方案更高;在签名群组和签名数量都增大的情况下,所提方案仍具有较好的性能。

关键词: 车联网, 车辆保险评估, 无证书签名, 批量验证, 可转换签名

Abstract: The dynamic vehicle insurance evaluation mode based on Vehicular ad-hoc network(VANET) analyzes user behavior by collecting real-time data, and then realizes the behavior driven of insurance fee collection. However, providing real-time data can easily lead to the disclosure of private information, which might discourage users from contributing data and thus affect the effectiveness of the evaluation. This paper designs a novel ring signature scheme to preserve user privacy by implementing broken links between data uploaders and data. When the quantity of data increases, this solution relies on the batch verification algorithm to reduce the signature verification overhead of the data collection platform and improve verification efficiency. Meanwhile, the selective conversion mechanism from anonymous signature to normal signature is designed to verify whether the user is the owner of the data in response to the user's need to declare the ownership of the data. The experimental results show that the computational overhead of the single signature process does not increase significantly in this scheme with a larger number of signing users, and the efficiency of the server-side signature verification is much higher than that of existing schemes. When both the signature group and the number of signatures increase, this scheme still maintains better performance.

Key words: Vehicular network, Vehicle insurance assessment, Certificateless signature, Batch verification, Convertible signature

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