An Efficient Multiple Session Key Establishment Scheme for VANET Group Integration

VANET (vehicular ad hoc network) is used to create communication networks for vehicles or other roadside devices so that they can quickly share and receive messages. However, VANET belongs to a family of wireless networks, which means that its functions are unsafe. To provide safe communication channels, key-agreements technology can be introduced to VANET communication. Traditional key-agreement schemes, however, are inefficient and consume too many resources, especially when handling large or combined groups of users. To improve efficiency, the Chinese remainder theorem is used to build a batch key-agreement protocol. The improved key for VANET environments is a safer and quicker way to establish communication channels.