Enhancing the Message Authentication Process in VANET under High Traffic Condition using the PBAS Approach

The significance and popularity of VANET is increasing nowadays because of their great contribution in improving traffic efficiency and safety. We present an authentication and verification scheme of the Vehicular Ad-hoc Networks VANET for the low as well as high traffic conditions. However, communication between two or more vehicles or with RSUs needs to be secure as well as authenticated. In this paper we will discuss the Elliptic Curve Cryptography Algorithm (ECC) approach which uses the vehicle ID, a random generated prime number and time stamp to encrypt the message in a secure manner. Our main focus is to reduce the authentication time; therefore we have used the proxy vehicle which is verified by both RSU and CA and they will do half of the authentication process and decrease the authentication time. In this paper we have taken the parameters of packet loss, delay and throughput and compared the proposed approach for the low traffic conditions and also for high traffic conditions. So the result shows that the proposed scheme provides high quality of message authentications in less time period on both the traffic conditions without affecting the overall security of VANET.