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.

该方案提出了概念，将密钥预配置建立在多个密钥之上，节省了节点存储空间，增强了可扩展性。将加密传输机制应用到密钥传输过程中，增强了密钥传输过程中安全性。