New Lightweight Security Protocol for VANET by Using Registration Identity and Group Certificate

Vehicular ad hoc networks (VANETs) ar e receiving increasing attentions from academia and deployment efforts from industry, due to the various applications and potential tremendous benefits they offer for future VANET users. Wellbeing information switch over enables life - critical applications, such as the alerting functionality during connection traversing and lane integration , and thus, it plays a key role in VANET. In a VANET, vehicles will rely on the integrity of received data for deciding when to present alerts to drivers. The communicatio n between car to car, car to roadside unit done through wireless communication. That is why security is an important concern area for vehicular network application. In VANET some serious network attacks such as man in middle attack, masquerading is possibl e. In this paper we are going to propose an algorithm in order to overcome these network attacks. Finally we have analyzed and compared our algorithm with existing algorithm [1].