Blockchain application in simulated environment for Cyber-Physical Systems Security

TL;DR

This paper proposes a blockchain-based strategy to secure data integrity and enable data recovery in cyber-physical systems, specifically critical infrastructure control networks, through an integrity check and data redundancy in simulated environments.

Contribution

It introduces a novel blockchain-integrated approach for securing and recovering operational data in industrial control systems, enhancing cybersecurity measures.

Findings

Blockchain ensures data integrity in ICS networks

Data redundancy improves recovery after cyber attacks

Effective simulation demonstrates system resilience

Abstract

Critical Infrastructures (CIs) such as power grid, water and gas distribution are controlled by Industrial Control Systems (ICS). Sensors and actuators of a physical plant are managed by the ICS. Data and commands transmitted over the network from the Programmable Logic Controllers (PLCs) are saved and parsed within the Historian. Generally, this architecture guarantees to check for any process anomalies that may occur due to component failures and cyber attacks. The other use of this data allows activities such as forensic analysis. To secure the network is also crucial to protect the communication between devices. A cyber attack on the log devices could jeopardize any forensic analysis be it for maintenance, or discovering an attack trail. In this paper is proposed a strategy to secure plant operational data recorded in the Historian and data exchange in the network. An integrity checking mechanism, in combination with blockchain, is used to ensure data integrity. Data redundancy is achieved by applying an efficient replication mechanism and enables data recovery after an attack.