Recursive reachable set computation for on-line safety assessment of the Cyber-Physical System against stealthy cyber attacks

2016 ◽  
Author(s):  
Cheolhyeon Kwon ◽  
Inseok Hwang
Keyword(s):  
Physical System ◽  
Safety Assessment ◽  
Cyber Attacks ◽  
Reachable Set ◽  
Cyber Physical System ◽  
On Line

scholarly journals Online Monitoring of a Cyber Physical System Against Control Aware Cyber Attacks

2015 ◽  
Vol 70 ◽  
pp. 238-244 ◽  
Author(s):  
Hemangi Laxman Gawand ◽  
A.K. Bhattacharjee ◽  
Kallol Roy
Keyword(s):  
Physical System ◽  
Online Monitoring ◽  
Cyber Attacks ◽  
Cyber Physical System

scholarly journals Node Importance Evaluation of Cyber-Physical System under Cyber-Attacks Spreading

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Xin-Rui Liu ◽  
Yuan Meng ◽  
Peng Chang
Keyword(s):  
Physical System ◽  
Single Layer ◽  
Test System ◽  
Cyber Attacks ◽  
Cyber Physical System ◽  
Cyber Attack ◽  
Network Nodes ◽  
Node Importance ◽  
Single Layer Network ◽  
Propagation Scenario

The study of cyber-attacks, and in particular the spread of attack on the power cyber-physical system, has recently attracted considerable attention. Identifying and evaluating the important nodes under the cyber-attack propagation scenario are of great significance for improving the reliability and survivability of the power system. In this paper, we improve the closeness centrality algorithm and propose a compound centrality algorithm based on adaptive coefficient to evaluate the importance of single-layer network nodes. Moreover, we quantitatively calculated the decouple degree of cascading failures caused by exposed nodes formed by attack propagation. At last, experiments based on the IEEE 57 test system show that the proposed compound centrality algorithm can match the cyber-attack propagation scenario well, and we give the importance values of the nodes in a specific attack scenario.

scholarly journals Key Establishment Algorithm for Secure Cyber Physical System to Prevent Cyber Attacks

2019 ◽  
Vol 9 (2) ◽  
pp. 3589-3594
Keyword(s):  
Physical System ◽  
Resource Constraints ◽  
Smart Cities ◽  
Research Effort ◽  
Control Process ◽  
Research Paper ◽  
Cyber Attacks ◽  
Smart Devices ◽  
Cyber Physical System ◽  
Key Establishment

Extensive research effort is going on to contribute to the Cyber Physical system (CPS). It will create a physical system capable of computation, communication and sharing information between physical devices. Physical devices become smart devices because of CPS. CPS are engineered systems that are built with sensors, microcontrollers which performs computation, communication, control, process and analysis of physical objects. CPS playing important role in smart cities, home automations and other applications. Due to resource constraints like low processing power and low storage space there is a lack of standard security mechanism which can provide adequate security in CPS. In the research paper, we proposed Key establishment mechanism which prevents CPS from cyber-attacks. The goal of this research paper are six -folds: i) to give a detailed overview of cyber physical system. ii) To study architecture of CPS. iii) To study different attacks on CPS with attack points. iv)Application areas of CPS v) security threats in CPS vi) Key establishment algorithm to prevent cyber-attacks in CPS.

scholarly journals A Session Key Based Security Mechanism for Cyber Physical System

2021 ◽  
Author(s):  
Sandip Thite ◽  
J. Naveenkumar
Keyword(s):  
Physical System ◽  
Industry 4.0 ◽  
Cyber Physical Systems ◽  
Cyber Attacks ◽  
Smart Devices ◽  
Cyber Physical System ◽  
Security Mechanism ◽  
Effective Solution ◽  
Session Key ◽  
Physical Systems

In recent years extensive research is going on for the development of applications which convert physical devices into smart devices. Industry 4.0 adopt the technologies under Cyber Physical Systems (CPS) for the development of such types of smart devices. Increase in the use of such type of smart devices without any security mechanism causes an open invitation for cyber attackers to perform cyber-attacks on such devices. Even current security algorithms are not efficiently work due to some constraints of smart devices. The goal of this research paper is to provide effective solution against different cyber-attacks on CPS applications. This paper proposed session key-based security mechanism which is used for the prevention of cyber-attacks and authentication of cyber devices.

scholarly journals Analysis of Resilience of a Digital Substation Using an Event Tree

2019 ◽  
Vol 217 ◽  
pp. 01007 ◽  
Author(s):  
Irina Kolosok ◽  
Elena Korkina
Keyword(s):  
Physical System ◽  
Cyber Physical Systems ◽  
Cyber Attacks ◽  
Cyber Physical System ◽  
Event Tree ◽  
Information Communication ◽  
External Disturbances ◽  
Physical Systems ◽  
Digital Substation ◽  
Informational System

A digital substation is an example of a cyber-physical system that is a sophisticated system consisting of two closely interrelated subsystems: physical (technological) and information-communication ones. Sophistication and vulnerability of an information-communication subsystem that performs functions of management becomes comparable to those of a physical subsystem. In the latest years the studies have been focused on the problems of cyber attacks against information-communication subsystems as potential external disturbances of present-day cyber-physical systems. Resilience is ability of an informational system to survive in the conditions of continuous cyber attacks. The proposed here approach to assessment of digital substation resilience using an event tree can serve as expert’s assistance in ensuring the digital substation resilience.

scholarly journals Developed security and privacy algorithms for cyber physical system

2021 ◽  
Vol 11 (6) ◽  
pp. 5379
Author(s):  
Dhuha Dheyaa Khudhur ◽  
Muayad Sadik Croock
Keyword(s):  
Physical System ◽  
Data Exchange ◽  
Denial Of Service ◽  
Modern Technology ◽  
Cyber Attacks ◽  
Transport Layer ◽  
Security And Privacy ◽  
Superior Performance ◽  
Cyber Physical System ◽  
And Performance

Cyber-physical system (CPS) is a modern technology in the cyber world, and it integrates with wireless sensor network (WSN). This system is widely used in many applications such as a smart city, greenhouse, healthcare, and power grid. Therefore, the data security and integrity are necessary to ensure the highest level of protection and performance for such systems. In this paper, two sides security system for cyber-physical level is proposed to obtain security, privacy, and integrity. The first side is applied the secure sockets layer (SSL)/transport layer security (TLS) encryption protocol with the internet of things (IoT) based message queuing telemetry transport (MQTT) protocol to secure the connection and encrypt the data exchange between the system's parties. The second side proposes an algorithm to detect and prevent a denial of service (DoS) attack (hypertext transfer protocol (HTTP) post request) on a Web server. The experiment results show the superior performance of the proposed method to secure the CPS by detecting and preventing the cyber-attacks, which infect the Web servers. They also prove the implementation of security, privacy and integrity aspects on the CPS.

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