无线传感器网络密钥管理方案的研究

Research On the Key Management Scheme in Wireless Sensor Networks

以基于矩阵的密钥预分配方案为基础,提出了新的基于分组的节点部署模型和基于分组的密钥管理方案,并且对方案的性能进行分析。该方案对无线传感器网络中的节点进行分组部署,能够解除分组节点数量要固定相等的限制、简化传感器节点的部署过程,同时克服了密钥预分配方案中要求预先掌握节点预期部署位置信息的缺点,提高建立密钥的概率和安全性。

In this paper, a new group-based node deployment model and a new group-based key management scheme were proposed based on the existed matrix-based key pre-distribution scheme. And the property of the scheme was analyzed in the paper. In the scheme, sensors were deployed in groups, which releases the constraint of equal group size and greatly simplifies the deployment of sensor networks. The knowledge of sensors’ expected locations are not necessary and the probability of pairwise key establishment and security can be increased at the same time.