Secure control of networked cyber-physical systems

Satchidanandan, Bharadwaj

doi:10.1109/cdc.2016.7798283

Cited by 19 publications

(8 citation statements)

References 22 publications

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“…We do not restrict the range of false-data attacks. With this abstraction in hand, it is possible to develop an active defense based on the idea of "dynamic watermarking" [76], [77], [79]. The basic idea is illustrated in Fig.…”

Section: A Securing Manufacturing Controllers Via Dynamic Watermarksmentioning

confidence: 99%

“…This idea was introduced in [103] to detect replay attacks and extended in [104] to detect other attacks. The articles [79], [102], [105] develop detectors that provably detect arbitrary attacks that introduce nonzero power distortion. Dynamic watermarking is a general methodology that can apply in a variety of contexts.…”

Section: Fig 12 Dynamic Watermarking: the Actuator Node I Adds A Secret Noise E I (T) "Watermark" To The Nominal Control Input U Inominalmentioning

confidence: 99%

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A Survey of Cybersecurity of Digital Manufacturing

et al. 2021

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The Industry 4.0 concept promotes a digital manufacturing (DM) paradigm that can enhance quality and productivity, which reduces inventory and the lead time for delivering custom, batch-of-one products based on achieving convergence of additive, subtractive, and hybrid manufacturing machines, automation and robotic systems, sensors, computing, and communication networks, artificial intelligence, and big data. A DM system consists of embedded electronics,

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Section: A Securing Manufacturing Controllers Via Dynamic Watermarksmentioning

confidence: 99%

Section: Fig 12 Dynamic Watermarking: the Actuator Node I Adds A Secret Noise E I (T) "Watermark" To The Nominal Control Input U Inominalmentioning

confidence: 99%

A Survey of Cybersecurity of Digital Manufacturing

et al. 2021

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“…[24] also considered attack surface is considered where a subset of control input can be manipulated by the attacker. Later, [25]-[27] introduced the distortion power as a general metric for arbitrary attack scenarios and developed testing scheme that ensures zero power distortion. In [28]- [30], the authors used securable and unsecurable subspaces of the linear dynamic system to analyze the capability of applying dynamic watermarking for a given system.…”

Section: A Related Workmentioning

confidence: 99%

A Dynamic Watermarking Algorithm for Finite Markov Decision Problems

Tang¹,

Song²,

Gupta³

2021

Preprint

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Dynamic watermarking, as an active intrusion detection technique, can potentially detect replay attacks, spoofing attacks, and deception attacks in the feedback channel for control systems. In this paper, we develop a novel dynamic watermarking algorithm for finite-state finite-action Markov decision processes and present upper bounds on the mean time between false alarms, and the mean delay between the time an attack occurs and when it is detected. We further compute the sensitivity of the performance of the control system as a function of the watermark. We demonstrate the effectiveness of the proposed dynamic watermarking algorithm by detecting a spoofing attack in a sensor network system.

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“…The honest actuators can therefore detect malicious sensors by checking if the measurements reported by the sensors are appropriately correlated with the watermark. In our prior work [38][39][40], we have shown that by using this approach, and subjecting the reported sequence of measurements to two particular tests of sensor veracity, it can be ensured that the malicious sensors, no matter what attack strategy they employ, do not distort the measurements beyond adding a zero power signal to the noise already entering the system. This result, known as the fundamental security guarantee of Dynamic Watermarking, was established for broad classes of linear systems.…”

Section: Related Workmentioning

confidence: 99%

“…In our prior work [38][39][40]44], we developed the approach of Dynamic Watermarking to secure a cyber-physical system and established the security guarantees that it provides. Specifically, it is shown in these papers that Dynamic Watermarking can secure, in a very precise sense, many broad classes of linear systems from arbitrary attack strategies.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Watermarking-based Defense of Transportation Cyber-physical Systems

Ko¹,

Satchidanandan²

2019

ACM Trans. Cyber-Phys. Syst.

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The transportation sector is on the threshold of a revolution as advances in real-time communication, real-time computing, and sensing technologies have brought to fruition the capability to build Transportation Cyber-Physical Systems (TCPS) such as self-driving cars, unmanned aerial vehicles, adaptive cruise control systems, truck platoons, and so on. While there are many benefits that TCPSs have to offer, a major challenge that needs to be addressed to enable their proliferation is their vulnerability to cyber attacks. In this article, we demonstrate, using laboratory prototypes of TCPSs, how the approach of Dynamic Watermarking can secure them from arbitrary sensor attacks. Specifically, we consider two TCPSs of topical interest: (i) an adaptive cruise control system and (ii) a system of self-driving vehicles tracking given trajectories. In each of these systems, we first show how cyber attacks on sensors can compromise safety and cause collisions between vehicles in spite of the presence of a collision avoidance module in the system. We then apply the approach of Dynamic Watermarking and demonstrate that it detects attacks with “low” delay. Once an attack is detected, the controller can take appropriate control actions to prevent collisions, thereby guaranteeing safety in the sense of collision freedom.

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Secure control of networked cyber-physical systems

Cited by 19 publications

References 22 publications

A Survey of Cybersecurity of Digital Manufacturing

A Survey of Cybersecurity of Digital Manufacturing

A Dynamic Watermarking Algorithm for Finite Markov Decision Problems

Dynamic Watermarking-based Defense of Transportation Cyber-physical Systems

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