A multi-gateway authentication and key-agreement scheme on wireless sensor networks for IoT

The Internet of Things (IoT) is designed to let anything connect to the Internet, and the things can be people, computers, and things. On the IoT, the Wireless Sensor Network (WSN) plays an important role because it can be used in many applications such as smart home, intelligent transportation, and intelligent disaster prevention. Since the WSN transmits data in the wireless way, the security problem is a concerning issue in this field. On the WSN, an authentication and key-agreement scheme can let the sensors authenticate to each other and share a common key to encrypt the data. Thus, it can be used to solve the security problem of WSNs. In this paper, I propose a new multi-gateway authentication and key-agreement scheme on WSN for IoT. The proposed scheme adopts a new multi-gateway structure, and thus it allows users and sensors to join in different areas of WSN dynamically. According to the performance analysis, the execution time of the proposed scheme is only 24Th, where Th is the execution time of a one-way hash function. In conclusion, the proposed scheme is more efficient than the related works on the WSN for IoT applications.