Main Article Content
Abstract-Vehicular ad hoc network (VANET) is a self-organized multi hop system comprised by multiple vehicles. This kind of network offers different kind of communication such as Vehicle to Vehicle (V2V) and Vehicle to Infrastructure (V2I) communication. The V2V communication a folk of Mobile ad hoc network(Manet). It is characterized by a high mobility, dynamic topology, lack of centralized control infrastructure and a non secured shared media. Similar to Manet, V2V is vulnerable to a many types addressed this issue and many solutions have been proposed. One of attacks such as blackhole, sybil and Denial of service attack. Security in such cases is primordial. Many studies have of the most promising studies used Distribution Certification authority (DCA) to secure communication within VANETs networks. In this paper, we propose a new method of certification based on the study of the behavior of each node based on AODV routing protocol. The operational performance is evaluated with rigorous analysis and extensive simulation study. Our approach reduces certificate with 6.01 to 69.42% less certificates.