Journal of Xidian University ›› 2021, Vol. 48 ›› Issue (1): 141-148.doi: 10.19665/j.issn1001-2400.2021.01.016

Previous Articles     Next Articles

Cross-domain authentication and the key agreement protocol in VANETs

LI Xiaowei1(),YANG Dengqi1(),ZHENG Xin1(),ZHU Xingwen1(),CHEN Benhui1(),ZHANG Yuqing2()   

  1. 1. School of Mathematics and Computer,Dali University,Dali 671003,China
    2. National Computer Network Intrusion Prevention Center,Chinese Academy of Sciences University,Beijing 100049,China
  • Received:2020-08-13 Online:2021-02-20 Published:2021-02-03


Aiming at the problem that vehicle-to-vehicle (V-2-V) authentication and key agreement of cross-domain in VANETs (vehicular ad hoc networks) can be accomplished by the participation of servers,a cross-domain V-2-V password-based authentication and key agreement protocol without server participation is proposed.The protocol uses the method of distributing authentication credentials to achieve cross-authentication,and enhances the security of passwords by combining smart cards with passwords.The security of the protocol is proved under the hard problem of ECCDH (Elliptic Curve Computational Diffie-Hellman).Compared with the existing cross-domain authentication and key agreement protocol that requires server participation,the proposed protocol does not involve server participation,thus avoiding the communication delay caused by the server’s inability to process a large number of authentication requests.

Key words: VANETs, authentication and key agreement, cross-domain, without server participation, password

CLC Number: 

  • TN918