Signature based Authentication Scheme for Vehicle Ad-hoc Network

Objectives: To embed security inVehicle Ad-Hoc Network(VANET). Methods: Anonymous authentication is achieved using group signature. The current authentication scheme involves a long delay while searching for a particular certificate in the Certificate Revocation List (CRL) and the message security is not ensured. Hence the scheme will not meet the requirement of security in VANETs. Findings: In the proposed scheme, a general authentication scheme is constructed for Vehicular Ad-hoc Network (VANETs) to overcome the aforementioned problem. Road Side Unit (RSA) serves the purpose of allocating the generated public key to the vehicles who come within their communication range. HMAC is deployed to replace the time consuming CRL and the security of the message is ensured using cryptographic algorithm. Application: Vehicle to Vehicle, Vehicle to Road Side Unit.