The threat of zero-dynamics attack on non-linear cyber-physical systems

IF 1.7 Q3 COMPUTER SCIENCE, INFORMATION SYSTEMS
Amir Norouzi Mobarakeh, Mohammad Ataei, Rahmat-Allah Hooshmand
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引用次数: 0

Abstract

Zero-dynamics attack (ZDA) is a destructive stealthy cyberattack that threatens cyber-physical systems (CPS). The authors have warned about the risk of a cyberattack by introducing a new general ZDA that can be effective and robust in non-linear multiple-input multiple-output CPS. In this proposed attack policy, the adversary extracts the sensor and actuator online data on the network platform. Then, by utilising a state observer and considering specific delay times, the attacker injects a ZDA signal into the actuator channels of the cyber-physical system. As a result, the internal dynamics will diverge from the nominal working region of the controlled cyber-physical system, while the outputs remain close to the actual outputs of the attack-free system. Therefore, this cyberattack can remain stealthy, and it can also be robust against revealing signals. The efficiency of this new attack policy is demonstrated in the simulation results for a continuous stirred tank reactor regarded as a cyber-physical system.

Abstract Image

非线性网络物理系统的零动态攻击威胁
零动态攻击(zero -dynamic attack, ZDA)是一种威胁网络物理系统(CPS)的破坏性隐身网络攻击。作者通过引入一种新的通用ZDA来警告网络攻击的风险,该ZDA在非线性多输入多输出CPS中是有效和稳健的。在该攻击策略中,攻击者在网络平台上提取传感器和执行器的在线数据。然后,通过利用状态观测器并考虑特定的延迟时间,攻击者将ZDA信号注入到网络物理系统的执行器通道中。因此,内部动力学将偏离受控网络物理系统的标称工作区域,而输出仍然接近无攻击系统的实际输出。因此,这种网络攻击可以保持隐身,并且它也可以对暴露的信号保持强大。将连续搅拌釜式反应器作为一个网络物理系统进行仿真,验证了该攻击策略的有效性。
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来源期刊
IET Cyber-Physical Systems: Theory and Applications
IET Cyber-Physical Systems: Theory and Applications Computer Science-Computer Networks and Communications
CiteScore
5.40
自引率
6.70%
发文量
17
审稿时长
19 weeks
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