针对网络安全加密协议(SNEP)存在过于依赖基站、密钥计算耗能大、密钥分发安全性较低的问题，采用了分簇式结构，引入矩阵与多密钥空间理论对SNEP进行改进。节点之间可利用加载的矩阵信息自主进行通信密钥计算。通过分析可知，该方案可降低基站依赖性，防范女巫攻击，并对基站的计算、存储需求降低，节点计算与存储开销没有明显增加，网络具有较高的安全性，可扩展性较好。

Aiming at the existing problems of the Secure Network Encryption Protocol(SNEP) including that the protocol is too dependent on the base station, large energy consumption to calculate the key, the key distribution of low security, the network adopts the clustering structure, and introduces the matrix and the multi-key space theory to improve the SNEP. The calculation of the communication key can be carried out autonomously between the nodes using the loaded matrix information. Through the analysis, it is indicated that the program can reduce the base station dependency , prevent witch attacks, and decrease the calculation of the base station and storage requirements, also the node computing and storage overhead are not increased significantly; the network is of high security, and better scalability.