A SECURE SOFTWARE DEFINED NETWORKING BASED FRAMEWORK FOR IOT NETWORKS

Abstract

The entities of the world are simulated and connected with the help of IoT (Internet of Things) devices. A large amount of data needs to be stored and retrieved securely, but the IoT devices have a small amount of mem- ory and computation time. Hence, a storage area with a large amount of secured storage space is needed. Software-defined Networking (SDN) is an emerging network technology which implements a new paradigm of insecure applications and IoT services. To build a heterogeneous secure network, we introduce SDN controller broadcast encryption using the Open Network Op- erating System integrated with network switches and SDN Controllers. In this paper, we propose a secured data sharing system in IoT devices in which they are connected to an SDN controller and data from the IoT device is encrypted. Only the corresponding authorized switch receives the data and knows the exact key to decrypt the ciphertext. Hence, the data is stored and retrieved securely. In our system, we use Wheatstone algorithm to encrypt the data from the IoT devices. The algorithm helps to avoid botnet attacks and other types of attacks on the data. The proposed system establishes new forwarding paths through controller and communicates with authorized switches for secure data transmissions. We analyzed the performance of our proposed algorithm using OMNeT++ and confirmed that the algorithm is efficient and secure. This extends the security features of IoT applications.