A Secure Authentication and Key Establishment Scheme using PUF in Vehicular Ad-Hoc Network

In VANET, a vehicle can exchange information from other vehicles and facilities around the road. However, the problems such as transmitting data over insecure wireless channels and storing information in insecure memory can pose serious security threats. To solve this problem, research on authentication and key establishment using PUF is being actively conducted. In 2021, Umar et al. proposed an ID-based authentication and key establishment scheme using PUF in VANETs. However, their scheme has some security vulnerabilities and does not provide secure mutual authentication. In this paper, we analyze the security vulnerabilities of Umar et al. 's scheme and propose a secure authentication and key establishment scheme to solve the problems.