Blockchain-Based Man-in-the-Middle (MITM) Attack Detection for Photovoltaic Systems
2021
Cybersecurity of photovoltaic (PV) systems entails a much larger scope than just encryption and firewall of communications. For instance, integrity of data in transit between inverters and a cloud server can be compromised by authorized third-party, devices, and internal network within security perimeter (i.e., man-in-the-middle (MITM) attack). To address this challenge, this paper proposes a blockchain-based MITM attack detection method for a PV system. A breakthrough method includes screening network data, network intrusion detection, and hash comparison of in-transit data using distributed ledgers. The proposed method is implemented in Internet-of-Thing (IoT) security modules as clients of a blockchain network and validated by experiments.
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