VANET Based Privacy-Preserving Navigation scheme with replica server

In VANET each vehicle is assumed to have an onboard unit (OBU) and Road-side units (RSU) which is installed along the roads. A traffic authority (TA) and possibly some other application servers are introduced in the back end. The OBUs and RSUs convey utilizing the Dedicated Short Range communications (DSRC) convention over the remote channel while the RSUs, TA, and the application servers impart utilizing a safe system, for example, Internet. In this proposed approach, we have developed a navigation System that collects the real time road information from Vehicular ad hoc network (VANET) which provide helps to the driver in order to give the information about desired destinations in a real-time and distributed manner. In this work we have used the Elliptic curve algorithm to authenticate source and also reduce the delay and network overhead. Authentication and privacy preserving are basic requirements of any VANET security system; along with these basic requirements this proposed scheme satisfy all other necessary security requirements. In this Work we have also introduced the Replica server. The entire authentication is done through main server and if main server fails due to the some reason then Replica server will take over the task.