network security center

In the center of the diagram in Figure 2 is Tivoli's WebSEAL product, which serves the role of a proxy and provides a security mechanism to control access to documents and Web objects in the network.

图2的中心展示的是Tivoli的WebSEAL产品，该产品充当代理的角色并提供安全机制来控制对网络中的文档以及Web对象的访问。

The structure, function and security of Long-distance education data center in a large military network are explained in this paper.

文章阐述了某大型军用网络远程教育数据中心的模块化体系结构、业务功能和安全设计。

The communication between each subsystem and the security management center integrates many kinds of network security mechanisms such as encryption, signature, authentication etc.

各子系统与安全管理中心之间的通信采用了加密、签名、认证等安全机制。