无线传感器网络密钥预分配蜂窝模型

要达到无线传感器网络的安全通信,必须对网络中节点之间的通讯数据用密钥进行必要的加密。文章使用蜂窝模型分组方案,把节点按照预测的地理位置关系分组,给处于相同组或是相邻组的节点之间分配共享密钥,使节点的分组模式和查询更符合节点广播特征。蜂窝模型密钥预分配机制极大的提高密钥利用率,减少了密钥分配和维护代价,使传感器网络的安全性和连通性极大的提高。

A Key Pre-distribution Scheme for Wireless Sensor Networks Using Cell Model

In order to achieve secure communication between nodes in wireless sensor networks, the messages between nodes must be encrypted before sent. Nodes can be close to predict target point when special deployment knowledge is used, and can also be grouped by the geography knowledge. So keys can be distributed to nodes in the same group and neighbor groups according to the location information. Key pre-distribution using cell model will provide high efficiency in key distribution and sharing, and will also reduce the cost of distribution and maintenance. This scheme can substantially improve the networks' security and connectivity.