Secure Trust Aware Hybrid Key Management Routing Protocol for WSNs for the Application of IoT

Secure Trust Based Key Management Framework for Wireless Sensor Networks (WSNs) to protect the forwarded packets from intermediary malicious nodes. The proposed method continuously ensures the trustworthiness of cluster heads by replacing them as soon as they become malicious and can dynamically update the packet path to avoid malicious routes. Unlike the other methods, the process is distributed among the nodes to minimize routing overhead and to conserve energy. The fundamental process of moving node to non-switchable Low Power Listening (LPL) state assists energy conservation. Trust based neighbor selection is carried out using Gateway node (GW) and Monitoring Node (MN) monitors other node activities so as to ensure security in the network. The manifold process integrated improves network performance in terms of throughput, retaining network lifetime and conserving energy utilization at midst the presence of adversary nodes. The proposed method can significantly outperforms traditional cluster based routing protocols that do not use trust concept in selecting the forwarding nodes in packet delivery ratio. Comparisons and analysis have shown the effectiveness of the proposed scheme.