关键词: 赛博攻击模型, 韧性系统动力学, 定性分析, 全局动力学

Abstract:

In order to improve the continuous support capability of the resilient system under complex cyber attacks, this paper first

builds a class of cyber attack model based on the principle of virus epidemical dynamics to simulate the complex cyber threat environment in the resilient system,

and deeply studies the dynamic characteristics of the model. Then, a variant target model of the resilient system under cyber attacks is constructed, and the local stability of the resilient system is analyzed by

using the center manifold theorem and the bifurcation theory.

Finally, with the Matlab software, the dynamic epidemical process of cyber attacks and the dynamic variant process of the target of the resilient system are displayed

in some numerical portraits.

Key words: Cyber attack model, Dynamics of resilient system, Qualitative analysis, Global dynamics