Sensitive information protection in blockchain-based supply-chain management for aerospace

Supply chain management is a critical aspect for every manufacturing business, in particular for safety critical systems where quality assessment and requirement satisfaction are evaluated in order to guarantee a certification of the final system. In this paper we present a blockchain-based methodology that focuses on enforcing strict data access control and that securely includes manufacturing equipment in the supply chain management process. The methodology provides cyber-security guarantees exploiting secure automated interaction between a blockchain supply chain management system and industrial manufacturing devices. A prototype of the proposed approach is implemented with state-of-the-art distributed ledger technologies integrating low-power devices hardened through the application of hardware security modules.