A Survey on Identity Based Batch Verification Scheme for Privacy and Security in VANET

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract Vehicular adhoc network is an emerging network which facilitates vehicular communication for the safety requirements. Each vehicle broadcasts messages to its neighboring vehicle as well as to the roadside units(RSUs). However this increases the concerns for security and privacy. To check the message validity at RSU, a batch verification of all signed messages is being performed by RSU, which is known as Identity-based batch verification(IBV). In this scheme, messages should be signed and verified by RSUs without revealing the real identity of vehicles. This scheme assures anonymous authentication, message integrity , privacy as well as traceability. So in this paper, we present a survey of all the existing IBV schemes.