4.In this scheme we put forward the concept of matrix pool on which our key predistribution scheme is upbuilt,and encrpytion scheme is introduced into the process of key transfer.
该![](https://dict.eudic.net/tmp/wordimg/SkOMS4Gwa7yzQ0CmtlJr90VQZgY=.png)
![](https://dict.eudic.net/tmp/wordimg/P7TZNRlp@XQm5qyqdx@QA9l83C0=.png)
出了矩阵池的概念,将密钥的预配置建立在多个密钥矩阵之上,节省了节点的存储空间,增强了网络的可扩展性。将加密传输机制应用到密钥的传输过程中,增强了密钥传输过程中的安全性。