Secure Blockchain Platform for Industrial IoT with Trusted Computing Hardware
This work addresses security issues for industrial IoT applications, but it is incremental as it builds on existing blockchain and trusted hardware concepts.
The paper tackles security challenges in implementing blockchain for industrial IoT by designing a secure platform using trusted computing hardware, achieving a throughput of 150 TPS and transaction confirmation delay below 66 ms in experiments.
As a disruptive technology that originates from cryptocurrency, blockchain provides a trusted platform to facilitate industrial IoT (IIoT) applications. However, implementing a blockchain platform in IIoT scenarios confronts various security challenges due to the rigorous deployment condition. To this end, we present a novel design of secure blockchain based on trusted computing hardware for IIoT applications. Specifically, we employ the trusted execution environment (TEE) module and a customized security chip to safeguard the blockchain against different attacking vectors. Furthermore, we implement the proposed secure IIoT blockchain on the ARM-based embedded device and build a small-scale IIoT network to evaluate its performance. Our experimental results show that the secure blockchain platform achieves a high throughput (150TPS) with low transaction confirmation delay (below 66ms), demonstrating its feasibility in practical IIoT scenarios. Finally, we outline the open challenges and future research directions.