A Remote Device Authentication Scheme for Secure Communication in Cloud Based IOT

The evolution of IOT that began with computers has now developed into an ecosystem. This IOT ecosystem consists of a large number of different types of devices embedded with sensors and technology, which makes them smart enough to interact within themselves. With IOT omnipresent, the challenge would be how to ensure only authorized access to the resulting smart system which in turn will ensure the security of the data gathered from these devices. In this paper, a very lightweight mutual authentication protocol based on Diffie Hellman for IOT enabled smart systems has been proposed. The proposed scheme possesses all the required security attributes and these attributes are validated by the widely accepted BAN logic.A thorough security analysis has been done to show that the proposed scheme is secure against different security attacks. The performance of the same has also been evaluated and compared with a number of existing methods. Performance analysis also demonstrates the effectivity of our proposed protocol.