Design of a Trusted Third Party Key Exchange Protocol for Secure Internet of Things (IoT)

IoT incorporates a system of physical objects that are interconnected to exchange and collect data over the internet. The services provided by IoT, though improves the standard of our lives, have major challenges on securing networks and data in transmission because of the innumerable devices and services that are associated with it. Securing data is essential and it must not be seen as an afterthought. This paper proposes a secure Trusted-third-party based key exchange protocol (STKEP) for data communication in Internet of Things (IOT). This work employs an elliptic curve cryptographic method for encryption process. A session key is used to encrypt the data which is transmitted between the communication parties with the help of a trusted third party.