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Existing security research in wireless sensor networks is based on specific assumptions about the nodes and the network environment that are tied to specific usage scenarios. Typical scenarios consider sensor nodes that are immobile and have pre-defined communication patterns. We argue that node mobility is a realistic characteristic of sensor nodes that needs to be taken into consideration in future...
Key management poses a main concern for security operation in sensor network. Most existing key management schemes try to establish shared keys for all pairs of neighbor sensors, no matter whether these nodes communicate with each other or not, and causes large overhead. Recent trend of research mainly consider homogeneous sensor network and a few consider heterogeneous sensor network for key management...
In this paper, we propose a secure embedded gateway system for a wireless sensor network that provides secure wireless and wire communication channels for wireless sensor nodes and applications in the Internet, respectively. It also has security functions such as key management, access control and secure wireless network configuration for wireless sensor nodes and secure query process for its applications...
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