Araç ağlarında güvenlik ve mahremiyet

The wide deployment of wireless technologies and sharply dropping costs of electronic components lead the idea of communicating vehicles in order to provide safer and efficient driving conditions. Vehicles increase their awareness of their environment by communicating with each other and with roadside infrastructure therefore increased safety and optimized traffic is achieved.As a wireless communication technology, VANET is highly vulnerable to abuses and attacks. In order to ensure proper operation of safety-related applications the security of safety messages should be guaranteed even in the presence of persistent attackers. An adversary may inject a false information in order to mislead the target vehicles or with tampering the on board unit, implement an impersonation attack. He may also, by recording the messages of a target vehicle, track the vehicle?s location and collect private information about the vehicle.In this work, we study the security and privacy aspects of vehicular ad hoc networks. We first analyze the security requirements of VANET. We then propose a new scheme for secure and privacy protecting vehicular communications. We finally evaluate the proposed protocol against the previously defined requirements. According to our results, the proposed protocol fulfils all the security requirements and provides easy to manage and implement structures.