Cybersecurity of Discrete Event Systems
Cybersecurity of Discrete Event Systems

Author: Rong Su

Publisher: CRC Press

Published: 2024-09-05

Total Pages: 283

ISBN-13: 1040031323

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This book describes analysis and control against smart cyberattacks in discrete event systems (DES). This is the first technical DES book to provide a thorough introduction to smart cyberattacks on supervisory control systems modelled by regular languages or finite-state automata and possible resilient defence methods against smart cyberattacks. "Smart attacks" cannot be detected by the supervisor until an irreversible process toward ensured damage occurs. An attack may be conducted either in the observation channel (i.e., the supervisor’s input of the supervisor) or in the command channel (i.e., the supervisor’s output) or both simultaneously. Therefore, defence strategies against these attacks are urgently needed. Rong Su provides a comprehensive overview of the latest theories and includes empirical examples to illustrate concepts and methods. By centering on what information is available and how such information is used, the readers are provided with methods to evaluate the cyber vulnerability of a given system and design a resilient supervisor against relevant smart attacks. This book comprises two sections. Firstly, Su introduces the required concepts and techniques related to DES and supervisory control. Then he introduces different types of smart attacks that intercept and manipulate information in sensor and command channels in a standard closed-loop control system. Secondly, he presents resilient defence strategies against relevant types of attacks. By focusing on a conceptual introduction and systematic analysis, this book provides a solid theoretical foundation for future exploration by researchers and graduate students who are interested in cybersecurity research, not necessarily limited to those in the DES community. To illustrate the practical relevance of this research, realistic examples are used throughout this book. Readers are recommended to have a background in formal language theory.

Cyber Security for Discrete Event Systems
Cyber Security for Discrete Event Systems

Author: Raphael Fritz

Publisher: Logos Verlag Berlin GmbH

Published: 2024-03-25

Total Pages: 200

ISBN-13: 3832582754

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Cyber-physical systems are a crucial part of modern automation applications. These systems are widespread across the production industry and critical infrastructures where a high degree of security, reliability and availability is required. This work investigates possible defense mechanisms against attacks on cyber-physical systems modeled by networked discrete event systems. Based on a threat assessment, attack prevention, attack detection and localization, and attack recovery methods are proposed. The cyber attacks under consideration are stealthy attacks that actively hide their influence and are not detectable by conventional anomaly detection schemes. The attack prevention is based on a controller encryption scheme exploiting the use of homomorphic encryption. The attack detection and localization are realized by introducing unexpected behavior into the transmitted signals and analyzing the timing behavior. The attack recovery reconfigures the controller based on the information gained from the attack localization and Monte-Carlo Tree Search.

Analysis and Control for Resilience of Discrete Event Systems
Analysis and Control for Resilience of Discrete Event Systems

Author: João Carlos Basilio

Publisher:

Published: 2021-08-17

Total Pages: 174

ISBN-13: 9781680838565

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As modern systems become larger and the impact of a failure can be wide-ranging in some cases causing havoc to everyday life system reliance, the ability of a system to withstand major disruption and to recover within an acceptable time frame, becomes increasingly important. While systems failures can have many causes, component faults and cyber intrusions are two common such causes which can occur separately or one type can cause another failure of the other type. In this monograph, the authors describe in detail the research on fault diagnosis, opacity analysis and enhancement, and cyber security analysis and enforcement, within suitable discrete event system modelling frameworks. In each case, they describe basic problem statements and key concepts, and then point out the key challenges in each research area. Finally the authors present a thorough review of state-of-the-art techniques, and discuss their advantages and disadvantages. This monograph is a thorough overview of the cutting edge of research on resilient systems. It will be starting point for the readers own research into improving the reliability and fault-tolerance of modern-day engineering and computer systems.

Cybersecurity of Discrete Event Dynamic Systems
Cybersecurity of Discrete Event Dynamic Systems

Author: Rong Su, (El

Publisher:

Published: 2024-05

Total Pages: 0

ISBN-13: 9781032368122

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"Su's book describes analysis and control against smart cyberattacks in discrete event systems (DES). This book is the first in the DES community to provide a thorough introduction of smart cyberattacks on supervisory control systems modelled by regular languages or finite-state automata. "Smart attacks" cannot be detected by the supervisor until an irreversible process towards ensured damage occurs. An attack may be conducted in either the observation channel (i.e., the supervisor's input of the supervisor) or the command channel (i.e., the supervisor's output), or both simultaneously. Therefore, defense strategies against these attacks are urgently needed. Su provides a comprehensive overview of the latest theories and includes empirical examples to illustrate concepts and methods. By centering on what information is available and how such information is used, the readers are provided with methods to evaluate cyber vulnerability of a given system and design a resilient supervisor against relevant smart attacks. This book comprises three parts. Firstly, Su introduces the required concepts and techniques related to DES and supervisory control. Secondly, he introduces different types of smart attacks that intercept and manipulate information in sensor and command channels in a standard closed-loop control system. Finally, he presents resilient defense strategies against relevant types of attacks. By focusing on conceptual introduction and systematic analysis, this book provides a solid theoretical foundation for future exploration by researchers and graduate students who are interested in cybersecurity research, not necessarily limited to those in the DES community. To illustrate the practical relevance of this research, realistic examples are used throughout the book. Readers are recommended to have a background in formal language theory"--

Cybersecurity of Discrete Event Systems
Cybersecurity of Discrete Event Systems

Author: Rong Su

Publisher: CRC Press

Published: 2024-09-05

Total Pages: 220

ISBN-13: 1040031366

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This book describes analysis and control against smart cyberattacks in discrete event systems (DES). This is the first technical DES book to provide a thorough introduction to smart cyberattacks on supervisory control systems modelled by regular languages or finite-state automata and possible resilient defence methods against smart cyberattacks. "Smart attacks" cannot be detected by the supervisor until an irreversible process toward ensured damage occurs. An attack may be conducted either in the observation channel (i.e., the supervisor’s input of the supervisor) or in the command channel (i.e., the supervisor’s output) or both simultaneously. Therefore, defence strategies against these attacks are urgently needed. Rong Su provides a comprehensive overview of the latest theories and includes empirical examples to illustrate concepts and methods. By centering on what information is available and how such information is used, the readers are provided with methods to evaluate the cyber vulnerability of a given system and design a resilient supervisor against relevant smart attacks. This book comprises two sections. Firstly, Su introduces the required concepts and techniques related to DES and supervisory control. Then he introduces different types of smart attacks that intercept and manipulate information in sensor and command channels in a standard closed-loop control system. Secondly, he presents resilient defence strategies against relevant types of attacks. By focusing on a conceptual introduction and systematic analysis, this book provides a solid theoretical foundation for future exploration by researchers and graduate students who are interested in cybersecurity research, not necessarily limited to those in the DES community. To illustrate the practical relevance of this research, realistic examples are used throughout this book. Readers are recommended to have a background in formal language theory.

Using Discrete Event Simulation to Model Attacker Interactions with Cyber and Physical Security Systems
Using Discrete Event Simulation to Model Attacker Interactions with Cyber and Physical Security Systems

Author:

Publisher:

Published: 2015

Total Pages: 6

ISBN-13:

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The number of connections between physical and cyber security systems is rapidly increasing due to centralized control from automated and remotely connected means. As the number of interfaces between systems continues to grow, the interactions and interdependencies between them cannot be ignored. Historically, physical and cyber vulnerability assessments have been performed independently. This independent evaluation omits important aspects of the integrated system, where the impacts resulting from malicious or opportunistic attacks are not easily known or understood. Here, we describe a discrete event simulation model that uses information about integrated physical and cyber security systems, attacker characteristics and simple response rules to identify key safeguards that limit an attacker's likelihood of success. Key features of the proposed model include comprehensive data generation to support a variety of sophisticated analyses, and full parameterization of safeguard performance characteristics and attacker behaviours to evaluate a range of scenarios. Lastly, we also describe the core data requirements and the network of networks that serves as the underlying simulation structure.

Introduction to Discrete Event Systems
Introduction to Discrete Event Systems

Author: Christos G. Cassandras

Publisher: Springer Nature

Published: 2021-11-11

Total Pages: 821

ISBN-13: 3030722740

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This unique textbook comprehensively introduces the field of discrete event systems, offering a breadth of coverage that makes the material accessible to readers of varied backgrounds. The book emphasizes a unified modeling framework that transcends specific application areas, linking the following topics in a coherent manner: language and automata theory, supervisory control, Petri net theory, Markov chains and queueing theory, discrete-event simulation, and concurrent estimation techniques. Topics and features: detailed treatment of automata and language theory in the context of discrete event systems, including application to state estimation and diagnosis comprehensive coverage of centralized and decentralized supervisory control of partially-observed systems timed models, including timed automata and hybrid automata stochastic models for discrete event systems and controlled Markov chains discrete event simulation an introduction to stochastic hybrid systems sensitivity analysis and optimization of discrete event and hybrid systems new in the third edition: opacity properties, enhanced coverage of supervisory control, overview of latest software tools This proven textbook is essential to advanced-level students and researchers in a variety of disciplines where the study of discrete event systems is relevant: control, communications, computer engineering, computer science, manufacturing engineering, transportation networks, operations research, and industrial engineering. ​Christos G. Cassandras is Distinguished Professor of Engineering, Professor of Systems Engineering, and Professor of Electrical and Computer Engineering at Boston University. Stéphane Lafortune is Professor of Electrical Engineering and Computer Science at the University of Michigan, Ann Arbor.

Discrete Event Simulations
Discrete Event Simulations

Author: Aitor Goti

Publisher: BoD – Books on Demand

Published: 2010-08-18

Total Pages: 342

ISBN-13: 953307115X

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Considered by many authors as a technique for modelling stochastic, dynamic and discretely evolving systems, this technique has gained widespread acceptance among the practitioners who want to represent and improve complex systems. Since DES is a technique applied in incredibly different areas, this book reflects many different points of view about DES, thus, all authors describe how it is understood and applied within their context of work, providing an extensive understanding of what DES is. It can be said that the name of the book itself reflects the plurality that these points of view represent. The book embraces a number of topics covering theory, methods and applications to a wide range of sectors and problem areas that have been categorised into five groups. As well as the previously explained variety of points of view concerning DES, there is one additional thing to remark about this book: its richness when talking about actual data or actual data based analysis. When most academic areas are lacking application cases, roughly the half part of the chapters included in this book deal with actual problems or at least are based on actual data. Thus, the editor firmly believes that this book will be interesting for both beginners and practitioners in the area of DES.

Cyber-Physical Systems
Cyber-Physical Systems

Author: Gaddadevara Matt Siddesh

Publisher: CRC Press

Published: 2015-12-01

Total Pages: 623

ISBN-13: 148225977X

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In cyber-physical systems (CPS), sensors and embedded systems are networked together to monitor and manage a range of physical processes through a continuous feedback system. This allows distributed computing using wireless devices. Cyber-Physical Systems-A Computational Perspective examines various developments of CPS that are impacting our daily

Supervisory Control of Discrete-Event Systems
Supervisory Control of Discrete-Event Systems

Author: W. Murray Wonham

Publisher: Springer

Published: 2018-08-17

Total Pages: 487

ISBN-13: 3319774522

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This book shows how supervisory control theory (SCT) supports the formulation of various control problems of standard types, like the synthesis of controlled dynamic invariants by state feedback, and the resolution of such problems in terms of naturally definable control-theoretic concepts and properties, like reachability, controllability and observability. It exploits a simple, abstract model of controlled discrete-event systems (DES) that has proved to be tractable, appealing to control specialists, and expressive of a range of control-theoretic ideas. It allows readers to choose between automaton-based and dually language-based forms of SCT, depending on whether their preference is for an internal-structural or external-behavioral description of the problem. The monograph begins with two chapters on algebraic and linguistic preliminaries and the fundamental concepts and results of SCT are introduced. To handle complexity caused by system scale, architectural approaches—the horizontal modularity of decentralized and distributed supervision and the vertical modularity of hierarchical supervision—are introduced. Supervisory control under partial observation and state-based supervisory control are also addressed; in the latter, a vector DES model that exploits internal regularity of algebraic structure is proposed. Finally SCT is generalized to deal with timed DES by incorporating temporal features in addition to logical ones. Researchers and graduate students working with the control of discrete-event systems or who are interested in the development of supervisory control methods will find this book an invaluable aid in their studies. The text will also be of assistance to researchers in manufacturing, logistics, communications and transportation, areas which provide plentiful examples of the class of systems being discussed.