Netinfo Security ›› 2022, Vol. 22 ›› Issue (5): 30-36.doi: 10.3969/j.issn.1671-1122.2022.05.004

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Research on Formal Analysis Based on Event of Group Key Agreement Protocol

SHEN Yan, YAO Mengmeng()   

  1. Jiangnan Institute of Computing Technology, Wuxi 214063, China
  • Received:2021-11-21 Online:2022-05-10 Published:2022-06-02
  • Contact: YAO Mengmeng E-mail:wellstudy@163.com

Abstract:

Group key agreement protocol is a research hotspot in the fields of Internet of things, wireless, blockchain, video conference and so on. The group key agreement protocol contains many exchange messages, and the cryptographic algorithms used for message authentication and encryption are also complex, which brings certain difficulties to the formal description and security analysis of cryptographic protocols. Based on strand space theory, this paper proposed related concepts and event-based formal analysis methods. The method was intuitive, concise and effective, which was easy to formally describe complex cryptographic protocols, and could simplify the security analysis process of cryptographic protocols. In this paper, the event-based formal analysis method was used to formally describe and analyzed the group key agreement protocol. The analysis of the protocol also proved the validity and correctness of the formal analysis method proposed in this paper.

Key words: group key agreement protocol, strand space, formal analysis

CLC Number: