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arXiv 1603.08309cs.CRcs.SImath.DS
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主动网络防御动态的随机模型

A Stochastic Model of Active Cyber Defense Dynamics

Shouhuai Xu, Wenlian Lu, Hualun Li

摘要:

主动网络防御的概念已经提出多年。然而,没有数学模型来描述主动网络防御的有效性。在本文中,我们填补了空白,提出了一种新的马尔可夫过程模型,是原生的网络攻击和主动网络防御之间的相互作用。不幸的是,我们所知道的技术无法处理原生马尔可夫过程模型。因此,我们简化,通过平均场近似,马尔可夫过程模型作为一个动态系统模型,是服从分析。这使我们能够得出一组有价值的分析结果,这些结果表征了四种类型的主动网络防御动态的有效性。仿真结果表明,分析结果是固有的马尔可夫过程模型,从而证明了动态系统模型的有效性。我们还讨论了平均场近似的副作用及其意义。

英文摘要:

The concept of active cyber defense has been proposed for years. However, there are no mathematical models for characterizing the effectiveness of active cyber defense. In this paper, we fill the void by proposing a novel Markov process model that is native to the interaction between cyber attack and active cyber defense. Unfortunately, the native Markov process model cannot be tackled by the techniques we are aware of. We therefore simplify, via mean-field approximation, the Markov process model as a Dynamic System model that is amenable to analysis. This allows us to derive a set of valuable analytical results that characterize the effectiveness of four types of active cyber defense dynamics. Simulations show that the analytical results are inherent to the native Markov process model, and therefore justify the validity of the Dynamic System model. We also discuss the side-effect of the mean-field approximation and its implications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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