A comprehensive survey on effective key management schemes for secured authentication in vehicular ad hoc network

Vehicular ad hoc network (VANET) refers to the network structure of ad hoc networks where different moving vehicles of different mobility communicate with each other over the wireless medium to exchange the information with one another. Communication in VANET takes place by using a wireless medium, which is an open channel, and it is vulnerable to various types of attacks during the data transmission. Hence, providing efficient authentication to the VANET is one of the important challenges needed to be addressed. Among all the security requirements, this work focuses on providing the comprehensive analysis on various authentication schemes employed for providing efficient authentication in the VANET. In this paper, a comprehensive analysis on various authentication schemes in VANET is carried out to highlight their advantages and limitations. Moreover, this paper also provides detailed analysis of various authentication protocols with respect to anonymity, integrity, reliability and authenticity to pave the way for the future researchers for designing efficient authentication protocol for achieving secure communication in VANET.