Traceable and Private Satellite Communication for Emergency Notification in VANET

Abstract

With the rapid development of the Internet of Things (IoT) technology in recent years, and its increasing success in the automotive sector, many research efforts have focused on the issues in Vehicular Ad Hoc Networks (VANETs). imultaneously, satellite technology is used for reliable emergency notification so that it can cope with significant accidents or disasters which potentially make traditional roadside radio communication infrastructure unavailable. However, these transmitted emergency messages are also vulnerable to unauthorized access, affect the privacy and security of people. Privacy and confidence of messages exchanged between mobile users are often regarded as two mutually conflicting issues. By using the cryptography, the proposed scheme can defend against known attacks and also solve some security issues such as mutual authentication, confidential communication, non-repudiation, user’s privacy, unforgeability etc. The system can also track malicious behaviors and prevent a legal registered mobile user from stealing the network control center’s private key to make sure no insider attack possibility. Our schme provides a good application in emergency notification of VANET.