针对企业应用系统单点登录的需要，提出一种基于中央认证服务器(CAS)的单点登录技术方案。

In order to meet the single sign-on needs of the enterprise's application system, we propose a center authentication server (CAS) -based single sign on solution to integrate the Web applications.

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最后，重点介绍基于多级管理的动态口令系统中的中央管理服务器、通信管理服务器和认证服务器这三类核心节点的设计与实现。

Finally, introduced the design and implement of the three core nodes in the new system, including center management server, communication management server and authentication server.

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最后，重点介绍基于多级管理的动态口令系统中的中央管理服务器、通信管理服务器和认证服务器这三类核心节点的设计与实现。

Finally, introduced the design and implement of the three core nodes in the new system, including center management server, communication management server and authentication server.

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