提出了一种提高无线传感器网络中传感节点安全性的系统结构,通过在传感节点上增加安全存储模块,可靠地保证了传感节点中所存储密钥信息的机密性、完整性,并可有效地对节点上关键应用程序的合法性进行验证,从而保证了传感网络中安全协议、认证方案的有效性、鲁棒性。和传统的传感节点相比,只是增加了节点的少量成本,但传感节点以及传感网络的安全性能得到了大幅度的提升。 A system structure to improve the security of sensor nodes in wireless sensor networks is proposed. By adding a secure memory module to the sensor nodes, the confidentiality and integrity of the key information stored in the sensor nodes are reliably guaranteed. Which can validate the validity of the key applications on the node effectively, so as to ensure the validity and robustness of the security protocols and authentication schemes in the sensor network. Compared with the traditional sensing nodes, only a small increase in the cost of nodes, but the sensor nodes and sensor network security has been greatly improved.