Data Security in Internet of Things

Abstract

IoT has proliferated into wide applications due to the inevitable use of WSN. Security in IoT is an emerging area of research and still much work needs to be done in this area. The proposed system aims at providing security in data transfer of clustered IoT. Clustering reduces communication overhead, and hence, it is widely used when combined with data aggregation in IoT. The system studies the performance of Elgammal and Diffie–Hellman in data security. The system employs Elgammal method for encryption and Signature scheme for authentication. It is compared to existing Diffie–Hellman scheme. It is found that the proposed system overcomes the drawback of man-in-the-middle attack in existing system. The system is implemented in COOJA emulator. As energy serves as the main challenge in IoT, the energy cost is compared with existing systems.