Optimal Strategy Selection of Dynamic Protocol Stack Based on Game Theory

摘要

Mobile target defense technology not only protects system security, but also increases the cost of system operation. How to reduce the defense cost as much as possible while achieving the defense function is a current research point. This article proposes a dynamic protocol stack for sniffing attacks. By constructing a protocol stack that dynamically transforms the protocol format, it increases the difficulty of the attacker's reverse analysis of the protocol format, so that even if the attacker captures the data packet, he cannot obtain the sensitive data carried in it. At the same time, based on the idea of dynamic protocol stack, this paper uses dynamic game with incomplete information as the theoretical basis to establish a multi-stage mobile target defense game model. Through quantitative analysis of the costs and benefits of both offense and defense, the optimal defense strategy for attacks of varying degrees of damage is selected. Finally, the feasibility and effectiveness of the model are proved through simulation experiments.