基于矩阵空间的分级密钥管理

Hierarchical Key Management Based on Matrix Space

为提高无线传感器网络存储资源的利用率,同时增强网络的安全性,提出一种基于矩阵空间的分级密钥预分配管理方案。该方案采用LU矩阵子空间对节点逐次进行密钥分配,并在节点对密钥建立后,采用分级矩阵信息删除机制减少部分矩阵信息。实验仿真表明,在保证网络一定连通率的同时,该方案采用的分级矩阵信息删除机制不仅提升了节点的存储效率,而且逐步增强了无线传感器网络的安全性,网络节点最终能实现100%抗捕获攻击能力。

In order to improve the efficiency of the storage resource of wireless sensor networks,enhance security at the same time,this paper proposed a hierarchical key management based on matrix space.This scheme uses sub-space of LU matrix for successive key predistribution and uses removal mechanism to reduce some of the information of matrix of nodes after key establishment.Figures of simulation show that the proposed scheme provides better storage efficiency and better security through the removal mechanism.The security of network can up to 100%in the end.