International Journal of Scientific Research and Engineering Development

The rapid adoption of Industrial Internet of Things (IIoT) and digital aviation control systems has significantly improved automation, efficiency, and real-time decision-making across critical infrastructures. However, the increasing interconnectivity of sensors, controllers, and communication networks has also expanded the cyber-attack surface, making these systems vulnerable to data tampering, spoofing, unauthorized access, and single-point failures. Traditional centralized security architectures struggle to provide the level of trust, transparency, and resilience required for safety critical environments such as industrial automation and aviation operations. This paper proposes a blockchain secured communication framework that ensures data integrity, authentication, traceability, and fault tolerance in IIoT and aviation control systems. By integrating lightweight blockchain mechanisms with distributed sensor networks and control nodes, the proposed approach eliminates reliance on centralized authorities while enabling secure, immutable, and verifiable data exchange. The framework is evaluated through qualitative security analysis and performance considerations, demonstrating its effectiveness in enhancing cyber resilience without compromising system latency and operational efficiency. The findings confirm that blockchain-enabled security architectures offer a promising pathway toward trustworthy nextgeneration industrial and aviation communication systems.

Syed Kumail Abbas Zaidi, Khandkar Sakib Al Islam, Sums Uz Zaman, Sadia Afrin,"Blockchain-Secured Communication for Industrial IoT and Aviation Control Systems" International Journal of Scientific Research and Engineering Development, V9(1): Page(234-250) Jan-Feb 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.