Enhancing Disaster Recovery Mechanism in SCADA using Multichain Blockchain

The disaster recovery mechanism is employed in various industries but in critical infrastructure scenarios, the process should be reliable and resilient. This research paper proposes a novel framework for disaster recovery methods for as Supervisory control and data acquisition systems using communication channels created by blockchain technology. The permission blockchain technology is integrated with as Supervisory control and data acquisition devices for configuring the data and event-sharing techniques. The research work presents the process of configuring and implementing the disaster recovery process of risk assessment, backup creation and event logging. Further, the events in the critical infrastructure are controlled by smart contract automation as part of the multichain blockchain. The consensus for fault tolerance is achieved by keeping 90% of the nodes operational in the network. The proposed solution is simulated by creating a private communication channel among as Supervisory control and data acquisition devices and the performance is evaluated with successful execution rate and average time of block confirmation by the disaster recovery process. The mining diversity, number of required active nodes, creation of stream and creation of distributed ledger is controlled by single administrative node in the proposed architecture which can be configured according to the requirements of the SCADA network architecture.