• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

计算机工程与科学

• 计算机网络与信息安全 • 上一篇    下一篇

适用于车载网的匿名异构聚合签密方案

牛淑芬,李振彬,王彩芬   

  1. (西北师范大学计算机科学与工程学院,甘肃 兰州 730070)
  • 收稿日期:2017-10-30 修回日期:2018-04-24 出版日期:2019-01-25 发布日期:2019-01-25
  • 基金资助:

    国家自然科学基金(61562077,61462077,61662071,61662069);西北师范大学青年教师科研能力提升计划(NWNULKQN147)

An anonymous heterogeneous aggregate
signcryption scheme for vehicular networks

NIU Shufen,LI Zhenbin,WANG Caifen   

  1. (College of Computer Science and Engineering,Northwest Normal University,Lanzhou 730070,China)
  • Received:2017-10-30 Revised:2018-04-24 Online:2019-01-25 Published:2019-01-25

摘要:

异构聚合签密既能够实现不同密码系统之间信息传输的机密性和不可伪造性,也能够降低通信开销。结合车载网的特点,提出了一个无证书密码系统到基于身份密码系统的异构聚合签密方案,并采用不同的系统参数来增强系统的安全性。方案能够同时为多个消息进行验证,并为发送者实现了身份匿名,有效解决了用户的隐私安全问题。同时,在随机预言模型下证明了该方案满足不可区分性和不可伪造性。数据对比实验表明,该方案相对于同类型方案有效地降低了通信开销,适合用于车载网络。
 
 

关键词: 车载网, 异构聚合签密, 匿名, 隐私安全

Abstract:

Heterogeneous aggregate signcryption can not only achieve the confidentiality and unforgeability of information transmission between different cryptosystems, but also reduce the cost of data communication. Combining with the characteristics of vehicular networks, we present a heterogeneous aggregate signcryption scheme from certificateless cryptography to identitybased cryptography, and adopt different system parameters to enhance the security of the system. The scheme can simultaneously verify multiple messages and keep the sender's identity anonymous, which can effectively secure the privacy of users. Moreover, we prove the indiscernibility and unforgeability of the scheme under the random oracle model. Data comparison experiments show that compared with the schemes of the same type, the proposed scheme is effective in reducing communication cost and more suitable for vehicular networks.
 

Key words: vehicular network, heterogeneous aggregate signcryption, anonymous, privacy security