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中文摘要：
为了解决大规模无线传感器网络的密钥管理问题,提出了基于EBS系统的两级密钥动态管理策略.该策略从网络部署开始,在整个生命周期内对节点内的密钥进行动态管理.针对无线传感器网络的特性,节点的密钥管理分为三个阶段：初始化阶段、稳定阶段和动态变更阶段.实验表明,TLKMS策略能够在一定程度上节省存储空间并提高网络抵御攻击的能力.
英文摘要：
For solving the issue of keys management in the mass wireless sensor networks,a Two-Level Key Management Scheme which will be used in clustered sensor networks based on EBS system was proposed. This scheme runs from network＇ s deployment to the end of lifecycle,to manage all of the nodes＇ keys. Regarding of the specialty of sensor networks,this scheme consists of three phases which are initialization phase, working phase and update phase. The experiments show that the sensor nodes only need to store fewer keys and the whole network performs good ability in keeping network flexibility.
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