Abstract
Our paper proposes a new device authentication scheme for mobile sensor node called Mobile Data Collector (MDC). Moreover, to validate the data brought by the MDC to the base station (BS), we validate it and then store it. To solve MDC authentication between multiple devices, we proposed blockchain scheme to provide more ease, communication and security between different devices. For this to happen, the last MDC authentication (meaning the first time the information is gathered) is performed by the CH'S first encounter with the classic authentication, and here the protocol accepts or rejects the MDC. Once the CH has authenticated the MDC, CH sends a transaction to the blockchain to verify the legality of the MDC access. Then, when the MDC requests the collected data from another CH in the network, at this point, any CH verifies the trust of the MDC by communicating with the blockchain. Hence, the proposed scheme is as safe as we claim. More specifically, in the proposed protocol for Blockchain Security IoT (Block_MDC) is to provide authentication between the Mobile Data Set (MDC), the head of the group and the member nodes of the WSN. We evaluate the performance of our protocol using simulations using MATLAB. The results confirm that the Block_MDC protocol is robust, efficient, and offers lower power consumption and fast computing time.