【摘要】 为了进行网络信息系统安全测评和主动防御,提出了网络防御图模型、攻防策略分类及其成本量化方法、网络攻防博弈模型和基于上述模型的最优主动防御选取算法.最后通过一个典型的网络实例分析了上述模型和算法在网络安全测评和最优主动防御中的应用.分析结果表明,提出的模型和方法是可行的、有效的.更多还原

【Abstract】 To evaluate the security of network information systems and perform active defense,this paper presents some models including defense graph model,attack-defense taxonomy and cost quantitative method,and Attack-Defense Game(ADG) model.Algorithms for selecting optimizing active defense strategy based on those models are proposed and analyzed in a representative network example.Results indicate that the models and methods are effective and efficient.更多还原