The security of vehicular ad hoc networks (VANETs) has been receiving a signifi cant amount of attention in the fi eld of wireless mobile networking because VANETs are vulnerable to malicious attacks.

Improved Key Based Security Framework for Vehicular Ad Hoc Networks

Approach: NS-2 is an open source system that is developed using C++ and Tool Control Language TCL. Researchers can freely add new components to the system to server their own purposes. The latest version of NS-2 is version 2.28. Within this version,