Blockchain-based Robust SDN Framework for Digital Twin-Enabled IoT Networks

To promote interaction between physical IoT assets and digital services, the rapid expansion of the Internet of Things (IoT) necessitates digitizing industrial processes. Integrating digital twins into an IoT network enables real-time virtualization of physical entities, allowing for efficient real-time control, rapid maintenance, and better decision-making. Furthermore, a digital twin-enabled IoT network may generate a vast amount of data, posing storage, processing, and security difficulties. In this study, we presented a blockchain and software-defined networking (SDN) integrated framework for offering decentralized and secure data operations in IoT networks to address these concerns. To filter malicious packets, the proposed system incorporates a packet analyzer and feature extraction modules at the SDN control layer. The blockchain is then constructed using an elliptic curve point technique for authenticating IoT devices. The results reveal that, when compared to the existing model, our suggested approach performs significantly better in terms of latency and throughput.