具有控制目标的网络物理攻击
Cyber Physical Attacks with Control Objectives
摘要：
研究了具有控制目标的攻击者对网络物理系统（CPS）的攻击。该系统配备有自己的控制器和攻击检测器，攻击者的目标是将系统移动到目标状态，同时改变系统的致动器输入和传感器输出以避免检测。我们制定了一个费用函数，反映了攻击者的目标，并使用动态规划，我们表明，最佳的攻击策略减少到攻击者的状态估计的线性反馈。通过改变费用函数的参数，我们展示了攻击者如何设计最优攻击来平衡控制目标和检测避免目标。最后，我们提供了一个数字说明的基础上，遥控直升机受到攻击。
英文摘要：
This paper studies attackers with control objectives against cyber-physical systems (CPS). The system is equipped with its own controller and attack detector, and the goal of the attacker is to move the system to a target state while altering the system's actuator input and sensor output to avoid detection. We formulate a cost function that reflects the attacker's goals, and, using dynamic programming, we show that the optimal attack strategy reduces to a linear feedback of the attacker's state estimate. By changing the parameters of the cost function, we show how an attacker can design optimal attacks to balance the control objective and the detection avoidance objective. Finally, we provide a numerical illustration based on a remotely-controlled helicopter under attack.
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