BTIA-IME: A blockchain-based trusted interactive architecture for intelligent manufacturing equipment

Abstract

With the continuous development of artificial intelligence, big data, and blockchain technology, the intelligent manufacturing industry will enter a new 5.0 era. In Industry 5.0, attackers can take advantage of the hidden dangers of information transmission among infrastructure, such as smart factories (SF) and intelligent manufacturing equipment (IME), to steal private data, endanger personal safety, and harm the interests of factories. In order to avoid the above phenomenon, this paper proposes a blockchain-based trusted interactive architecture for intelligent manufacturing equipment (BTIA-IME) based on the device layer of the Industrial Internet of Things (IIoT). First, we design the key management smart contract (KMSC) and equipment management smart contract (EMSC) based on Elgamal to implement the IME trusted authentication mechanism that does not require three-party verification to ensure the credibility of IME in SF. Then, we design the data management smart contract (DMSC) based on Elgamal to store the privacy data structure through the “Blockchain-(InterPlanetary File System) IPFS” on-chain and off-chain storage modes to ensure the distributed and trusted storage of private data. After that, an access control list is constructed with the shared private data as the main body to implement the trusted access method of private data to ensure trusted access to private data. Finally, we perform simulation experiments on the proposed architecture. Theoretical and simulation experiments have proved that our proposed architecture is feasible.