此外，应用程序代理服务器可以对用户进行认证。
In addition, application proxy servers can authenticate users.
InfoQ：ADFS有一个可选的代理选项，可以让用户通过互联网认证公司域名。
InfoQ: ADFS have an optional proxy giving users the ability to authenticate in their company domain over the Internet.
代理可以通过扩展的方式实现多重身份认证，进一步强化互联网用户的认证需求。
The proxy can be extended to implement multi-factor authentication and further strengthen the authentication requirements of Internet users.
“Call”对象允许您为基本认证设置HTTP用户标识和密码，以及中间 HTTP代理（如果它们存在的话）所需的类似方法。
The "Call" object allows you to set HTTP user ID and password for basic auth, and also similar methods to cater for intermediate HTTP proxies, if they exist.
认证是证明关联或识别的过程，关联和识别发生在代理人(最终用户在我们这里的情况下)和定义信任的程度之间。
Authentication is the process of proving an association or identity between an agent (the end-user in our case) and a defined degree of trust.
之后，还分别描述了两个功能代理（用户认证代理及邮件处理代理）的具体实现技术，介绍了代理平台主体与它们进行进程间通信的手段和通信过程。
Then we illustrate the implementation of two functional agents, the authentication agent and the mail-handling agent, and demonstrate the communication between the principal part and the modules.
之后，还分别描述了两个功能代理（用户认证代理及邮件处理代理）的具体实现技术，介绍了代理平台主体与它们进行进程间通信的手段和通信过程。
Then we illustrate the implementation of two functional agents, the authentication agent and the mail-handling agent, and demonstrate the communication between the principal part and the modules.
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