网络攻击效果在线评估模型与算法研究

Research of Online Evaluation Model and Algorithm for Network Attack Effect

为了顺利实现预定的攻击目标,在线评估攻击效果并制定适当的攻击策略都是非常重要的。本文讨论了网络攻击效果与目标网络系统安全性之间的关系,提了一种基于网络安全性改变量的攻击效果定义方法;重点研究了网络攻击效果在线评估的评估模型和评估算法;提出了网络攻击效果的评价准则和评估指标体系;设计并给出了网络攻击效果在线评估系统的框架模型;详细讨论了网络攻击效果在线评估的评估算法、状态图生成算法、攻击效果预测算法和攻击方案决策算法。

In order to achieving the network attack object perfectly, it＇s very important to evaluating the attack effect in real time and making proper attack strategy. The relationship between attack effect and network security property is analyzed. A definition of the network attack effect based on the change of network security property is given. The online evaluation model and evaluation algorithm for network attack effect are mainly studied in this paper. The evaluation rule and evaluation metrics are brought forward. The framework and design method of the network attack effect online evaluation system are described. The evaluation algorithm, attack status graph generating algorithm, attack effect predicting algorithm and attack scenario decision-making algorithm are discussed carefully. Finally, some problems which should be researched thoroughly in the future are pointed out.