PUF Based Authentication for Secure Data Transfer In Smart Grid

Abstract

Internet of Things is becoming popular and has many applications including healthcare, smart grid, surveillance systems etc. Numerous sensors, actuators are used for exchanging information over the internet. This information is confidential and should be sent in trusted environment. Lack of security mechanisms may lead to different types of attacks where any known or unknown sources can access and contaminate this information. Mirai malware is the most recent botnet in the IoT environment which performed DoS attack and brought the entire network down.  So a strong security mechanism which takes care of these attacks is needed. As numerous nodes are involved in IoT enviornment, node authentication plays a vital role.  Considering this we have proposed a system which secures the communication between two nodes using PUF (Physically Unclonable Function) based authentication. We have also proved that our system is computationally efficient and resilient to attacks.