On the Performance Degradation of Cyber-Physical Systems Under Stealthy Integrity Attacks

This technical note analyzes the effect of stealthy integrity attacks on Cyber-Physical Systems, which is modeled as a Stochastic Linear Time-Invariant (LTI) system equipped with a linear filter, a linear feedback controller and a χ 2 failure detector. An attacker wishes to induce perturbation in th...

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Veröffentlicht in:	IEEE transactions on automatic control 2016-09, Vol.61 (9), p.2618-2624
Hauptverfasser:	Yilin Mo, Sinopoli, Bruno
Format:	Artikel
Sprache:	eng
Schlagworte:	Approximation methods Calculus Controllers Detectors Ellipsoids Failure analysis Integrity Linear systems Mathematical analysis Performance degradation Perturbation methods robustness SCADA systems security Sensor systems Yttrium
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container_title	IEEE transactions on automatic control
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creator	Yilin Mo Sinopoli, Bruno
description	This technical note analyzes the effect of stealthy integrity attacks on Cyber-Physical Systems, which is modeled as a Stochastic Linear Time-Invariant (LTI) system equipped with a linear filter, a linear feedback controller and a χ 2 failure detector. An attacker wishes to induce perturbation in the control loop by compromising a subset of the sensors and injecting an exogenous control input, without incurring detection from an anomaly detector. We show how the problem can be modeled, from the attacker's standpoint, as a constrained control problem and that the characterization of the maximum perturbation can be posed as reachable set computation, which we solve using ellipsoidal calculus.
doi_str_mv	10.1109/TAC.2015.2498708
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subjects	Approximation methods Calculus Controllers Detectors Ellipsoids Failure analysis Integrity Linear systems Mathematical analysis Performance degradation Perturbation methods robustness SCADA systems security Sensor systems Yttrium
title	On the Performance Degradation of Cyber-Physical Systems Under Stealthy Integrity Attacks
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