The Secure Vehicle-to-Vehicle and Vehicle-to-Group Communication Mechanisms in Smart City

Nowadays, smart city becomes a tendency. Road safety has always been a very concerned issue. Recently, the sensor network and intelligent lights gradually turn into completed. How to combine intelligent lights and vehicle safety to enhance value added applications, such as the traffic video transmission, real-time traffic notifications and group vehicle communications, is worth discussing. However, this transferred information must be protected by information security to prevent unauthorized vehicles from participating in the communication or information transfer process. This paper proposes a secure data transmission mechanism which embeds the elliptic curve cryptosystem into the vehicle and the intelligent light to achieve the secure traffic notification, monitor, management, and thus maintain the vehicle safety.