Theory and implementation of dynamic watermarking for cybersecurity of advanced transportation systems

机译：动态水印技术在先进交通系统网络安全中的理论与实现

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We consider a prototypical intelligent transportation system with a control law that is specifically designed to avoid collisions. We experimentally demonstrate that, nevertheless, an attack on a position sensor can result in collisions between vehicles. This is a consequence of the feeding of malicious sensor measurements to the controller and the collision avoidance module built into the system. This is an instance of the broader concern of cybersecurity vulnerabilities opened up by the increasing integration of critical physical infrastructures with the cyber system. We consider a solution based on “dynamic watermarking” of signals to detect and stop such attacks on cyber-physical systems. We show how dynamic watermarking can handle nonlinearities arising in vehicular models. We then experimentally demonstrate that employing this nonlinear extension indeed restores the property of collision freedom even in the presence of attacks.

机译：我们考虑具有控制律的原型智能运输系统，该控制律是专门设计用于避免碰撞的。我们通过实验证明，尽管如此，对位置传感器的攻击仍可能导致车辆之间发生碰撞。这是将恶意传感器测量结果馈送到控制器和系统中内置的防撞模块的结果。这是由于越来越多的关键物理基础架构与网络系统集成而引发的网络安全漏洞引起的广泛关注的一个实例。我们考虑一种基于信号“动态水印”的解决方案，以检测并阻止对网络物理系统的此类攻击。我们展示了动态水印如何处理车辆模型中出现的非线性。然后，我们通过实验证明，即使在存在攻击的情况下，使用这种非线性扩展确实可以恢复碰撞自由的属性。

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《IEEE Conference on Communications and Network Security》|2016年|416-420|共5页
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Woo-Hyun Ko; Bharadwaj Satchidanandan; P R Kumar;
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Watermarking; Vehicle dynamics; Transportation; Actuators; Power measurement; Noise measurement;

机译：水印;车辆动力学;运输;执行器;功率测量;噪声测量;

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Theory and implementation of dynamic watermarking for cybersecurity of advanced transportation systems

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