Trust Management in Cyber Physical System using Blockchain
Bhabendu Kumar Mohanta, Utkalika Satapathy, Meenu Rani Dey, Soumyashree Subhadarsini Panda, Debasish Jena · 2020
Cyber-physical Systems (CPS) are reshaping the way of interaction with the physical world. Moreover, the true potential of CPS will be realized when a decentralized approach will be taken into account. Blockchain is an up-and-coming technology which can establish trust in CPS, where participants do not trust each other. Blockchain applications eliminate the middle man to provide trust and making the processes more efficient & cheaper. It's decentralized nature and cryptographic algorithm make it immune to attack and becomes a secure technology. When the data is stored on the blockchain it becomes immutable, ensuring trust in data. Nevertheless, this does not guarantee the trustworthiness of the device which is generating the data. We propose a blockchain-based signature storage solution to ensure trust among the participants which is further applicable to a diverse range of blockchain-based CPS applications. We have implemented our system using the Ethereum network and Docker Tools. Our proposed solution guarantees security properties i.e. device identification, authentication, integrity, and non-repudiation. Also, it reduces the storage space and storage cost than the traditional usage of blockchain in CPS.