Revisting of elliptical curve cryptography for securing Internet of Things (IOT)

The Internet-of-Things (IoT) is a network of `Things' connected to internet where things can be a coffee machine, cell phone, headphones, lamps, wearable devices and almost anything else you can think of. These devices will communicate with cloud for sharing information via internet. Due to cheap availability of broadband internet, by 2020 almost 20 billion devices will be connected IoT. As these devices are connected to internet, security is the major concern. IoT devices will be vulnerable to all kind of active and passive attacks. In continuation, this paper proposes a secured protocol based on elliptic curve for communication between IoT devices and server. In the proposed Elliptical Curve Internet of Things (ECIOT) protocol, the IoT device will establish secret session key with server by using Diffie-Hellman protocol based on NIST p-192 prime curve. The subsequent communication will be carried out with symmetric key cipher Ex-OR by using ECIOT derived key. Implementation of the proposed ECIOT protocol is demonstrated on MIRACL crypto library.