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A Graph-Based Technique for Securing the Distributed Cyber-Physical System Infrastructure.

Maxim Kalinin¹, Evgenii Zavadskii¹, Alexey Busygin¹

¹Institute of Computer Sciences and Cybersecurity, Peter the Great St. Petersburg Polytechnic University, 29 Polytekhnicheskaya ul., 195251 St. Petersburg, Russia.

Sensors (Basel, Switzerland)

|November 14, 2023

Summary

This study introduces a graph-based technique for detecting compromised nodes in cyber-physical systems. It effectively identifies intrusions like advanced persistent threats and ransomware in dynamic environments.

Keywords:

adaptation attack graph cyber-physical system functional dependencies graph functional infrastructure security virtual isolated network

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Area of Science:

Computer Science
Cybersecurity
Systems Engineering

Background:

Increasing digitalization and autonomy in cyber-physical systems (CPS) introduce significant security vulnerabilities.
Adversarial actions in networked systems can lead to severe negative consequences.

Purpose of the Study:

To propose a comprehensive technique for enhancing the security of distributed functional cyber-physical systems.
To enable dynamic detection and adaptation to rolling intrusions within CPS infrastructure.

Main Methods:

Representing the CPS infrastructure using two types of graphs: a functional dependencies graph and a potential attacks graph.
Utilizing graph-based analysis for dynamic detection of compromised nodes.
Conducting experimental modeling to validate the technique's effectiveness.

Main Results:

The proposed technique demonstrated effectiveness in identifying multiple compromised nodes within the functional infrastructure.
The graph-based approach allows for adaptation to evolving and rolling intrusions.
Experimental validation confirmed efficacy against advanced persistent threats and ransomware scenarios.

Conclusions:

The developed graph-based technique offers a robust method for securing cyber-physical systems against sophisticated cyber threats.
Dynamic detection and adaptive capabilities are crucial for resilient CPS infrastructure in the face of evolving adversaries.