CKDAC: Cluster-Key Distribution and Access Control for Secure Communication in IoT

The Internet of Things (IoT) is a system of interconnected Smart Devices, Digital Machines, and Things that exchange data through Machine-to-Machine communication with minimal human mediation. The scalability of the IoT devices increases the degree of connectivity to share the Data and causes unidentified trap doors for any intruder to exploit. In the proposed system, Cluster-Key Distribution and Access Control (CKDAC) for secure communication in IoT uses Publication-Subscription architecture with the dynamic Cluster Head election to enhance the security and availability of the communicating IoT Devices. The proposed CKDAC reduces Time of Computation by decreasing the processing time of the re-keying operations when the IoT node enters or exits the Cluster using the Cryptographic algorithm in the Publication-Subscription model. CKDAC extends the availability by electing the Cluster Head with the highest resources from the set of IoT Devices. The proposed scheme provides improved performance compared to Distributed Group Key Management,