A survey of performance improvement by group-based authentication in IoT

Although Internet of Thing (IoT) can be applied to many application domains by connecting all objects via Internet, security and privacy is one of the most concerns by users. In several applications, if the data is forged by attackers, it may incur unrecoverable disasters. Thus, device authentication must be supported in these security-sensitive applications. In this paper, a survey of group-based authentication (GBA) is conducted to support efficient device authentication in IoT. In addition, the performance improvement by GBA is evaluated and compared with the traditional direct authentication approach. According to the simulation results, GBA can significantly improve the performance of authentication process if the appropriate number of groups is determined.