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arXiv 2202.09755cs.GT
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多维网络安全游戏:攻击者和防御者如何在平行目标上作战?

Multi-dimensional Network Security Game: How do attacker and defender battle on parallel targets?

Yuedong Xu, John C. S. Lui

摘要:

在本文中,我们考虑了一个新的网络安全游戏,其中攻击者和防御者争夺“多个”目标。这种类型的游戏适合模拟许多当前的网络安全冲突,如互联网钓鱼,移动恶意软件或网络入侵。在这种攻击中,攻击者和防御者需要决定如何分配资源,以使每个目标在其资源限制内效用最大化。我们将这样一个多维网络安全博弈建模为一个有约束的非零和博弈。考虑了乘积型和比例型两种安全破坏模型。对于每一个违约模型,我们证明了存在一个唯一的纳什均衡(NE)的基础上罗森定理,并提出有效的算法来找到NE时,游戏是严格凹的。此外,我们证明了存在多个NE的产品形式的突破模型时,严格的证明不成立。我们的研究揭示了攻击者和防御者的战略行为,特别是,他们如何分配资源的目标,具有不同的权重,以及他们的效用以及策略是如何影响的资源约束。

英文摘要:

In this paper, we consider a new network security game wherein an attacker and a defender are battling over "multiple" targets. This type of game is appropriate to model many current network security conflicts such as Internet phishing, mobile malware or network intrusions. In such attacks, the attacker and the defender need to decide how to allocate resources on each target so as to maximize his utility within his resource limit. We model such a multi-dimensional network security game as a constrained non-zero sum game. Two security breaching models, the product-form and the proportion-form, are considered. For each breaching model, we prove the existence of a unique Nash equilibrium (NE) based on Rosen's theorem and propose efficient algorithms to find the NE when the games are strictly concave. Furthermore, we show the existence of multiple NEs in the product-form breaching model when the strict concavity does not hold. Our study sheds light on the strategic behaviors of the attacker and the defender, in particular, on how they allocate resources to the targets which have different weights, and how their utilities as well as strategies are influenced by the resource constraints.

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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