Secure Message Broadcasting in VANET Using RSU based Authentication and Cascade Encryption

Vehicular ad-hoc networks were introduced by applying certain principles based on MANET where nodes are high mobility vehicles. Because of this mobility of vehicles topology were rapidly changing, hence Security issue will predominant in VANET. Since network is accessible from every node, any malicious node can easily targets or get access into the network. In order to eliminate this issue a RSU based authentication should be introduced. Also in order to secure the message broadcasting between nodes and eliminating certain attack like Man-In-The-Middle (MITM) attack, a cryptographic technique called cascade encryption are used to broadcast the message from one vehicle to other vehicle in a secure and efficient way. With the help these two concepts we can able to satisfy the privacy and security requirements of Vehicular ad-hoc networks in an efficient manner.