通信学报 ›› 2023, Vol. 44 ›› Issue (3): 117-127.doi: 10.11959/j.issn.1000-436x.2023049

• 学术论文 • 上一篇    下一篇

面向网络攻击和隐私保护的多智能体系统分布式共识算法

徐明, 张保俊, 伍益明, 应晨铎, 郑宁   

  1. 杭州电子科技大学网络空间安全学院,浙江 杭州 310018
  • 修回日期:2023-02-08 出版日期:2023-03-25 发布日期:2023-03-01
  • 作者简介:徐明(1970- ),男,江苏苏州人,博士,杭州电子科技大学教授、博士生导师,主要研究方向为网络信息安全、数字取证等
    张保俊(1997- ),女,河北唐山人,杭州电子科技大学硕士生,主要研究方向为隐私保护、多智能体系统共识等
    伍益明(1987- ),男,浙江慈溪人,博士,杭州电子科技大学副教授、硕士生导师,主要研究方向为多智能体系统网络安全、群体智能与智能控制、迭代学习控制等
    应晨铎(1998- ),男,浙江温州人,杭州电子科技大学硕士生,主要研究方向为多智能体系统网络安全等
    郑宁(1962- ),男,浙江杭州人,杭州电子科技大学研究员、博士生导师,主要研究方向为网络信息安全、信息管理系统等
  • 基金资助:
    国家自然科学基金资助项目(61803135);国家自然科学基金资助项目(62073109);浙江省公益技术应用研究基金资助项目(LGF21F020011);浙江省教育厅科研基金资助项目(Y202146750)

Cyber attacks and privacy protection distributed consensus algorithm for multi-agent systems

Ming XU, Baojun ZHANG, Yiming WU, Chenduo YING, Ning ZHENG   

  1. School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, China
  • Revised:2023-02-08 Online:2023-03-25 Published:2023-03-01
  • Supported by:
    The National Natural Science Foundation of China(61803135);The National Natural Science Foundation of China(62073109);Zhejiang Provincial Public Welfare Research Project of China(LGF21F020011);The Scientific Research Fund of Zhejiang Provincial Education Department(Y202146750)

摘要:

为解决网络攻击与信息窃听环境下的多智能体系统分布式共识问题,提出一种能有效抵御网络拒绝服务(DoS)攻击和保护节点状态隐私的平均共识算法。首先,结合网络化控制系统中DoS攻击的特性,构建与时间相关的周期性DoS攻击模型。其次,利用邻居节点间的信息交互给出一种基于差分隐私的分布式网络节点信息处理机制,并将其引入平均共识算法。再次,结合事件触发机制,提出一种适用于DoS攻击下无向通信网络的分布式共识算法,并分别对其收敛性和隐私保护性能进行了严格的数学分析。最后,通过数值仿真实验和硬件实验验证了所提算法的有效性。

关键词: 多智能体系统, 平均共识, 拒绝服务攻击, 隐私保护, 网络安全

Abstract:

To solve the consensus problem of multi-agent systems in the environment of cyber attacks and information eavesdropping, an average consensus algorithm that can effectively resist network denial of service (DoS) attacks and protect nodes’ state privacy was proposed.Firstly, combined with the characteristics of DoS attacks in networked control systems, a periodic DoS attack model related to time was constructed.Then a distributed network node information processing mechanism based on differential privacy was proposed by using the information interaction between neighbor nodes, and then it was introduced into the average consensus algorithm.Furthermore, combined with the event-triggered mechanism, a consensus algorithm method suitable for undirected communication networks under DoS attacks was proposed, and its convergence and privacy protection performance were analyzed strictly mathematically.Finally, the effectiveness of the proposed algorithm was verified by a numerical simulation experiment and hardware experiment.

Key words: multi-agent system, average consensus, DoS attack, privacy protection, cyber security

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