Detection of covert attacks and zero dynamics attacks in cyber-physical systems

Hoehn, Andreas; Zhang, Ping

doi:10.1109/acc.2016.7524932

Cited by 102 publications

(57 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Let d be the smallest positive integer such that the dth Markov parameter CA d − 1 B of  CL is a nonzero matrix. In this case, it follows from (10)…”

Section: Adaptive Corrective Control Signalmentioning

confidence: 97%

“…In the work of Weerakkody et al, 9 the development of information flow analyses to support passive and active detection of adversaries in CPS is considered. 10 These attack strategies rely on perfect system knowledge availability. 10 These attack strategies rely on perfect system knowledge availability.…”

mentioning

confidence: 99%

“…A new approach to detect covert attacks and zero dynamics attacks on CPS is presented in the work of Hoehn and Zhang. 10 These attack strategies rely on perfect system knowledge availability. In the work of Lucia et al, 11 a set-theoretic control framework for CPS is proposed to derive an anomaly detector module, where false data injection attacks are modeled as additive signals to sensor measurements and actuator commands.…”

mentioning

confidence: 99%

See 2 more Smart Citations

An output‐feedback adaptive control architecture for mitigating actuator attacks in cyber‐physical systems

Yadegar

Meskin

Haddad

2019

Adaptive Control & Signal

View full text Add to dashboard Cite

In this paper, we present a control design framework wherein an adaptive-based corrective signal is augmented to the output of the nominal controller in order to suppress or counteract the effect of malicious actuator attacks. Due to the unavailability of full-state measurements, a nonminimal controllable realization of the nominal closed-loop system is used to design the corrective signal predicated on partial state information. Two illustrative numerical examples are given to demonstrate the efficacy of the proposed adaptive control architecture. KEYWORDSactuator attacks, adaptive control, cyber-physical systems, output feedback INTRODUCTIONCyber-physical systems (CPSs) have different meanings to different researchers and practitioners. The common thread in CPSs is the fact that they involve the integration of computation, communication, and physics working together in order to achieve required control objectives. These systems usually consist of networked agents, which include actuators, sensors, communication devices, and control processing units. 1 Since communication and computation devices are becoming cheaper and smaller, they are extensively used to interact directly with the physical environment, and hence, the use of these devices is becoming ubiquitous. Therefore, sensors and actuators, which collect, exchange, and use data in a CPS, are designed such that they can be interfaced with network and communication devices. The main reason of the advent of CPSs is the tight integration of the physical processes they control and computational resources and communication capabilities that exist in modern engineering systems. 2 The CPS architectures are being used in many different applications such as power systems, transportation systems, process control systems, large-scale manufacturing systems, ecological systems, and health care systems. Many of these applications involve safety-critical systems, and hence, any failures or cyber-attacks can cause catastrophic damage to the physical system being controlled resulting in drastic societal ramifications.Due to the open communication and computation platform architectures of CPS, one of the most important challenges in these systems is their vulnerability to malicious cyber-attacks. Cyber-attacks can severely compromise system stability, performance, and integrity. In particular, malicious attacks in feedback control systems can compromise sensor measurements as well as actuator commands to severely degrade closed-loop system performance and integrity. Cyber-attacks are continuously becoming more sophisticated and intelligent, and hence, it is vital to develop algorithms that can suppress their effects on CPSs. 3 Depending on the a priori system knowledge and the available resources of the attacker, different malicious attacks can be injected into CPSs. 4 The available resources of the attacker can be generally categorized as disclosure and disruption Int J Adapt Control Signal Process. 2019;33:943-955.wileyonlinelibrary.com/journal/acs

show abstract

“…Let d be the smallest positive integer such that the dth Markov parameter CA d − 1 B of  CL is a nonzero matrix. In this case, it follows from (10)…”

Section: Adaptive Corrective Control Signalmentioning

confidence: 97%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

An output‐feedback adaptive control architecture for mitigating actuator attacks in cyber‐physical systems

Yadegar

Meskin

Haddad

2019

Adaptive Control & Signal

View full text Add to dashboard Cite

show abstract

“…A combination of Gaussian and Bernoulli processes to generate a watermarking signal is suggested in [188] for general detection of deception attacks on sensors and actuators. The same idea is proposed for use against covert attacks (on both A 2 and A 8 ) in [189] by inserting a modulation system between A 8 and the actuation to misguide and confuse the attacker.…”

Section: B Defense Mechanismsmentioning

confidence: 99%

A systems and control perspective of CPS security

Dibaji

Pirani

Flamholz

et al. 2019

Annual Reviews in Control

403

191

View full text Add to dashboard Cite

The comprehensive integration of instrumentation, communication, and control into physical systems has led to the study of Cyber-Physical Systems (CPS), a field that has recently garnered increased attention. A key concern that is ubiquitous in CPS is a need to ensure security in the face of cyber attacks. In this paper, we carry out a survey of systems and control methods that have been proposed for the security of CPS. We classify these methods into three categories based on the type of defense proposed against the cyberattacks: prevention, resilience, and detection & isolation. A unified threat assessment metric is proposed in order to evaluate how CPS security is achieved in each of these three cases. Also surveyed are risk assessment tools and the effect of network topology on CPS security. An emphasis has been placed on power and transportation applications in the overall survey. Index Terms-cyber-physical systems, resilient control I. INTRODUCTION Motivated by concerns about sustainability, efficiency, and resiliency, several sectors including energy, transportation, water, and healthcare systems have witnessed significant advances in instrumentation, monitoring, and automation over the past decade. The resulting integration of information, communication, and computation with physically engineered systems demands a detailed investigation into the analysis and synthesis of Cyber-Physical Systems (CPS) so as to realize the desired performance metrics of efficiency, sustainability, and safety. The extensive and intricate presence of cyber components also introduces a vulnerability of unwanted access to these systems. The available communication technologies, referred to as SCADA (Supervisory Control and Data Acquisition), are witnessing significant advances, triggering a shift from protected, closed, and wired networks to open and wireless networks which, as a side effect, are more vulnerable to outside interference.

show abstract

“…such that there is a linguistic variable that occurs simultaneously in the condition of the rule +1 and in the conclusion of the rule , for = 1, … , − 1and 1 = , otherwise the values of some linguistic variables will remain undefined [6]. This condition is equivalent to the fact that in the specified directed graph there should not be contours.…”

Section: Figure 5 -Model Of Rules That Interpret Security Policy Provmentioning

confidence: 99%

Construction of Schemes, Models and Algorithm for Detection Network Attacks in Computer Networks

Sherzod*¹,

Dilmurod²,

Nodira³

et al. 2019

IJITEE

View full text Add to dashboard Cite

This article is devoted to develop network attack detection schemes to search for vulnerable servers and the likelihood of determining the type of attacks by the contents of network packets, a network attack recognition scheme that allows to filter external network traffic by processing incoming requests is proposedas well a network detection model attacks as signs of detecting the position of a security policy is offered. Based on the analysis of time series, a network attack detection model that allows identifying network attacks by a threshold value is developed and a mathematical model for real-time recognition of network attacks is proposed.Model of the behavior of the information flows are shown that the linear model does not provide an adequate assessment of the current process to the critical states. Within the framework of developing models for detecting network attacks, an algorithm for detecting and identifying network attacks is proposed, which allows one to perform not only an exhaustive search for the classification features of network attacks, but to limit itself to a shortened search.The behavior of the queue of half-open compounds are described with an absorbing state, and a system of differential equations for state probabilities are obtained. Also new requests to belong to a particular cluster are analyzed

show abstract

Detection of covert attacks and zero dynamics attacks in cyber-physical systems

Cited by 102 publications

References 16 publications

An output‐feedback adaptive control architecture for mitigating actuator attacks in cyber‐physical systems

An output‐feedback adaptive control architecture for mitigating actuator attacks in cyber‐physical systems

A systems and control perspective of CPS security

Construction of Schemes, Models and Algorithm for Detection Network Attacks in Computer Networks

Contact Info

Product

Resources

About