A Framework for Authentication in Vehicular Ad-hoc Network using Identity based approach

In Vehicular Ad-hoc Network (VANETs), security is a primary concern, as it affects traffic safety. Authentication in essence is an important security requirement to avoid attacks on vehicular communication. To provide authentication with some privacy to the users, we propose an authentication framework that uses pseudonyms, which are self-generated are used as key value in communication among vehicles. ID-Based Signature (IBS) Scheme and the ID-Based Online / Offline Signature (IBOOS) Schemes are used, which provides authentication for the basic three types of communication in VANET, namely the vehicle to vehicle (V2V) communication, Vehicle to Roadside (V2R) communication. and Roadside unit to Vehicle (R2V) communication. Simulation result demonstrate that the use of IBS/IBOOS has improved reduced packet delivery ratio and decreased storage latency and hence this approach proves to be very suitable for VANET architecture.