Abstract: The Vehicular ad hoc network (VANETs) is self organizing network in which vehicles communicate with each other without the presence of any infrastructure. It has a wireless device send information to near vehicles and Road side units. It has prone to several different attacks. Here we need high security to secure our messages from the hackers. There are several algorithms to provide the security; ECC (Elliptic Curve Cryptography) is one of the algorithms that provide security by using minimum number of keys. In this paper we have discussed about the VANET security by using ECC. Elliptic curve arithmetic can be used to develop a variety of VANET security schemes including key exchange, encryption and digital signature.
Keywords: VANET, Security Requirements, ECC, Pairing based ECC, Encryption, Decryption