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arXiv 2009.06173eess.SYcs.SY
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多智能体网络物理系统通信链路上不可检测的网络攻击

Undetectable Cyber Attacks on Communication Links in Multi-Agent Cyber-Physical Systems

Mahdi Taheri, Khashayar Khorasani, Iman Shames, Nader Meskin

摘要:

本文的目的是研究和开发条件的多代理网络物理系统(MAS)的网络中,恶意的对手可以利用漏洞,以确保和维护网络攻击无法检测。我们将这些网络攻击归类为不可检测的,因为在生成的残差中无法观察到它们的影响。它表明,如果一个代理,是根的生成树在MAS图的根是在网络攻击,攻击是不可检测的整个网络。接下来,我们将调查非根代理是否受到损害,然后在某些条件下可以检测到网络攻击。此外,一种新的网络攻击,被指定为准隐蔽的网络攻击,可以用来消除可检测的影响,整个网络的网络攻击,并保持这些攻击为未被发现。最后,提出了一种基于事件触发的检测器,可用于检测准隐蔽网络攻击。数值模拟来说明我们所提出的方法的有效性和能力。

英文摘要:

The objective in this paper is to study and develop conditions for a network of multi-agent cyber-physical systems (MAS) where a malicious adversary can utilize vulnerabilities in order to ensure and maintain cyber attacks undetectable. We classify these cyber attacks as undetectable in the sense that their impact cannot be observed in the generated residuals. It is shown if an agent that is the root of a rooted spanning tree in the MAS graph is under a cyber attack, the attack is undetectable by the entire network. Next we investigate if a non-root agent is compromised, then under certain conditions cyber attacks can become detectable. Moreover, a novel cyber attack that is designated as quasi-covert cyber attack is introduced that can be used to eliminate detectable impacts of cyber attacks to the entire network and maintain these attacks as undetected. Finally, an event-triggered based detector is proposed that can be used to detect the quasi-covert cyber attacks. Numerical simulations are provided to illustrate the effectiveness and capabilities of our proposed methodologies.

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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