信息网络安全 ›› 2022, Vol. 22 ›› Issue (5): 30-36.doi: 10.3969/j.issn.1671-1122.2022.05.004

• 技术研究 • 上一篇    下一篇

基于事件的群组密钥协商协议形式化分析研究

沈延, 姚萌萌()   

  1. 江南计算技术研究所,无锡 214063
  • 收稿日期:2021-11-21 出版日期:2022-05-10 发布日期:2022-06-02
  • 通讯作者: 姚萌萌 E-mail:wellstudy@163.com
  • 作者简介:沈延(1983—),男,山东,工程师,硕士,主要研究方向为高性能计算与信息安全|姚萌萌(1982—),男,山东,工程师,博士,主要研究方向为高性能计算与信息安全
  • 基金资助:
    国家自然科学基金(91430214);国家自然科学基金(6732018);核高基重大专项(2017ZX01028101)

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

摘要:

群组密钥协商协议应用于物联网、无线通信、区块链、视频会议等领域,是当前的一个研究热点。该协议的交互消息较多,且消息认证、加密所使用的密码算法也复杂,这就给密码协议的形式化描述与安全性分析带来一定的困难。文章基于串空间理论,提出了相关概念以及基于事件的形式化分析方法。该方法直观、简洁、有效,易于对复杂的密码协议进行形式化描述,并能简化密码协议的安全性分析过程。文章基于事件的形式化分析方法对簇间非对称群组密钥协商协议进行形式化描述和分析,发现该协议不能满足一致性,即不能认证参与协议交互节点的身份。通过对该协议的分析,也证明了文章所提形式化分析方法的有效性与正确性。

关键词: 群组密钥协商协议, 串空间, 形式化分析

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

中图分类号: