Secret Key based Sensor Node Security in the Internet of Things (IoT)

Security in Internet of Things (IoT) deals with safeguarding connected objects and networks. IoT involves the growing collection of objects known as things with unique identifiers. These objects have the ability to automatically transfer data over a network. Most of the increase in IoT communication comes from computing devices and embedded sensor systems which are used in industrial machine-to-machine (M2M) communication, home and building automation, vehicle to vehicle communication, smart energy grids, and wearable devices. Because the idea is to connect all physical objects to Internet, security has not always been measured in product design. The IoT products fail to select sufficiently strong security. Therefore, security is one of the important factors in IoT that should be taken care on priority basis. This study proposes IoT architecture which deals with security of devices. The main aim of this study is to make sure that an authentic device uploads the data and restrict false data being uploaded by devices trying to be an authentic device. The study presents a strong authentication technique based on secret keys which protects the identity of IoT devices in the network. The authentication and authorization techniques presented in this paper ensure that the right data is sent and received by right devices at right places and for right purpose.