传感器网络中节点对偶密钥建立自学习算法研究

Research on Pairwise Key Establishment Based on Node's Self Learning Algorithm in Sensor Networks

对偶密钥建立的有效性和安全性的折衷平衡是研究传感器网络中对偶密钥管理问题的焦点.提出了基于扩环矩阵向量预置的密钥建立算法以及相应的节点自学习算法.仿真实验表明我们的算法不仅取得了与MSKPD方案非常接近的抗毁损性能,而且在同样的预置和部署条件下,具有更高的密钥连通度.

The trade-off between effectiveness and security of paiwise key establishment is the focus of paiwsie key management issue in wireless sensor networks. Vector-based key pre-distribution in extended modulus matrix is presented, along with corresponding node＇s self learning algorithm. Compared with MSKPD, experiments show that presented schemes achieve higher degree in key sharing graph with little expense on node＇s resistance, given the same condition of pre-distribution and deployment.