PUF-Based Authentication for the Security of IoT Devices

The Internet of Things (IoT) has become in demand nowadays as many embedded devices are connected to the internet to collect a vast amount of data for processing. A substantial amount of this data between IoT devices is confidential information; therefore, attacks on IoT devices are growing, causing challenges to the security of the IoT devices. Physical Unclonable Functions (PUFs) are proposed as a powerful and lightweight solution to secure IoT devices. PUFs authenticate and generate secure cryptographic keys using manufacturing process variations to protect IoT devices from different attacks; this unique identity is based on physical characteristics. Device authentication is an essential task in IoT. In this paper, we propose a lightweight XOR-ROPUF based authentication scheme for the security of IoT systems. The proposed management scheme carries out the authentication between the verification authority and the IoT devices to ensure data congeniality and integrity, and thus reduces the risk of cyber attacks.