Journal on Communications ›› 2023, Vol. 44 ›› Issue (4): 111-123.doi: 10.11959/j.issn.1000-436x.2023048

• Papers • Previous Articles     Next Articles

Research on efficient cross trust-domain group authentication with conditional privacy of vehicle platoon under blockchian architecture

Yingjie XIA1, Siyu ZHU1, Xuejiao LIU2   

  1. 1 College of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China
    2 Zhejiang Province Key Laboratory of Cryptography Technology, Hangzhou Normal University, Hangzhou 311121, China
  • Revised:2023-01-11 Online:2023-04-25 Published:2023-04-01
  • Supported by:
    The National Natural Science Foundation of China(61873232);The Natural Science Foundation of Zhe-jiang Province(LZ22F030004)

Abstract:

In order to balance the security and efficiency of vehicle platoon cross trust-domain identity authentication, an efficient cross trust-domain group authentication scheme with conditional privacy of vehicle platoon under blockchian architecture was proposed.A novel block structure BM-Tree was designed for vehicle platoon identity authentication, which provided support for efficient cross trust-domain group authentication by sharing the group authentication parame-ters on the blockchain.Dynamic pseudonym was used for vehicle identity privacy-preserving and bilinear mapping was used to transform the trust-domain parameters, which realized cross trust-domain group authentication with conditional privacy.An efficient group authentication protocol based on BM-Tree was proposed, which realized batch identity au-thentication and re-authentication of vehicle platoon.The proposed scheme has better performance than existing cross trust-domain authentication methods in terms of security and computational overhead.Experimental result shows that the authentication delay is reduced by 29%, 25% and 53% on average, respectively compared with BLA, MDPA and BBA.

Key words: vehicle platoon, cross trust-domain, blockchain, privacy-preserving, group authentication

CLC Number: 

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