An Enhanced Trust Center Based Authentication in ZigBee Networks

摘要

The ZigBee is a type of LR-WPAN technology that as low data rate, low power consumption, low cost, wireless networking protocol targeted towards automation and remote control applications. The ZigBee standard defines a comprehensive security architecture and management model, including frame encryption, authentication, and integrity at each layer of the ZigBee protocol stack. In addition, ZigBee defines a Trust Center that provides the essential security functions of key management, network management, and device configuration. But ZigBee specification describes only intra-PAN networks, and the network size is increasing, the energy required for authentication is larger. In this paper, we outlined the basic Trust Center based Authentication (TCA) mechanism. And we propose an enhanced TCA mechanism which improve the performance of current standards in ZigBee Network with mobility node. Through simulation experiments, we showed that the proposed scheme is more energy and memory effective than current scheme. Our scheme provides an optimal and feasible authentication of mobility node in ZigBee networks and is suited for large ZigBee Network.