A secure routing protocol for Vehicular Ad Hoc Network to provide ITS services

Vehicular Ad Hoc Network (VANET) is an emerging area of research to provide Intelligent Transportation System (ITS) services to the end users. It is a challenging topic for its high mobility and frequent link disruption. Recently researchers are working on many specific issues related to VANET like routing, broadcasting, Quality of Service (QoS), security, architectures, applications, protocols, etc. The increase in vehicles leads to severe road accidents and traffic jam in urban areas, so to eradicate these problems there should be an efficient and secure communication between the vehicles. Security is a main issue nowadays in VANET because malicious drivers in the network disrupt the system performance. This paper presents a new Position Based Secure Routing Protocol (PBSRP) which is a hybrid of Most Forward within Radius (MFR) and Border Node based Most Forward within Radius (B-MFR) routing protocols. A security module is added in this protocol by using station to station key agreement protocol to prevent the system from various attacks. It consists of three phases: initialization phase, optimal node selection phase and secure data delivery phase. Simulation results shows PBSRP shows better results than MFR and B-MFR in terms of end to end delay and packet delivery ratio when malicious drivers are included in the network.