Active Detection Against Replay Attack: A Survey on Watermark Design for Cyber-Physical Systems
Active Detection Against Replay Attack: A Survey on Watermark Design for Cyber-Physical Systems
复制标题
针对重放攻击的主动检测：网络物理系统水印设计综述
DOI：
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
K. Johansson
中科院分区：
文献类型：
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作者：
Hanxiao Liu;Yilin Mo;K. Johansson
数字水印技术是一种在载波信号中嵌入数字信息的技术，即“水印”，以识别信号的所有权或验证载波信号的真实性或完整性。它已广泛应用于图像和信号处理领域。在这一章中，我们综述了一些最近的物理水印设计方法的信息物理系统（CPS）。我们专注于如何设计物理水印，主动检测网络攻击，特别是重放攻击，从而确保CPS。首先，系统以及攻击模型进行了介绍。一个基本的物理水印方案，它利用一个随机噪声作为水印来检测攻击，进行了讨论。最佳水印信号的设计，以实现控制性能和入侵检测之间的权衡。在此基础上，提出了基于隐马尔可夫模型的水印算法和基于数据的在线水印算法。这些方案都使用加性水印信号。提出了一种乘性水印方案。本章最后讨论了水印设计中的一些开放性问题。
Watermarking is a technique that embeds digital information, “water-mark”, in a carrier signal to identify ownership of the signal or verify the authenticity or integrity of the carrier signal. It has been widely employed in the fields of image and signal processing. In this chapter, we survey some recent physical watermark design approaches for Cyber-Physical Systems (CPS). We focus on how to design physical watermarking to actively detect cyber attacks, especially replay attacks, thereby securing the CPS. First, the system as well as the attack model are introduced. A basic physical watermarking scheme, which leverages a random noise as a watermark to detect the attack, is discussed. The optimal watermark signal is designed to achieve a trade-off between control performance and intrusion detection. Based on this scheme, several extensions are also presented, such as watermarks generated by a Hidden-Markov Model and on-line data-based watermark generation. These schemes all use an additive watermarking signal. A multiplicative watermark scheme is also presented. The chapter is concluded with a discussion on some open problems on watermark design.