An Efficient Authentication Scheme for Vanet Using Cha Cheon’s ID Based Signatures

Authentication of safety messages in Vehicular Ad hoc Networks (VANET) plays a major role. The time take for signature generation and verification should be very less, to provide a secure and comfortable transportation to the public. Several signature generation and verification schemes are proposed in the literatures. This paper focusses on the usage of Cha Cheon’s ID based signature scheme for authentication in vehicular networks. Experimental analysis shows that this signature scheme incurs less signature size, less delay and less overhead in transmission when compared to the existing schemes.