A Pull Firmware Update Mechanism for Industrial Control Based on IOTA Streams

Abstract

Firmware updates are crucial for patching vulnerabilities in IoT devices within industrial control systems (ICS). However, this process poses security risks, especially with the increasing of Industry 4.0. While blockchain technology has for enhancing firmware update security, existing solutions overlook low-capability IoT devices and rely on centralized storage. This paper proposed a secure firmware update mechanism for Industrial IoT (IIoT) devices. Design the PULL delivery mechanisms using distributed ledger technology (DLT), specifically IOTA Streams for message publication, and decentralized storage for firmware files. Our approach ensures integrity and availability while facilitating the real-time execution of the latest updates on IIoT devices.