该文提出一种实用复杂计算机网络结构,保证信息系统安全运行,建立可信任软硬件资源的方法.用PKI、数字认证和涉密硬件的技术手段,对可信任的主机、网络设备和安全设备进行控制,实现多个业务信息系统的安全运行保障.“,”In this paper,the establishment of a practical structure of the complex computer network to ensure the security of informa-tion systems operating on the establishment of trusted software and hardware resources. Using PKI,Digital secret authentication and hardware technology,trusted host,network equipment and safety equipment to control and achieve a number of business information systems to protect the safety of operations.