We're concerned mostly with extending the authorization component of JAAS, but we'll start with a brief overview of JAAS authentication, followed by a look at a simple JAAS authorization operation.

我们主要关注扩展 JAAS 的授权组件，但开始我们先简要概述一下 JAAS 认证，紧接着看一下一个简单的 JAAS 授权操作。

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When configuring a secure environment, you must make sure that every component provides for appropriate authentication, authorization, and encryption of network traffic.

在配置安全环境时，您必须确保所有组件都能为网络通信提供相应的身份验证、授权和加密。

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Component developers can use either programmatic or declarative security to define authorization policies.

组件开发者可以使用程序的或声明的安全来定义授权策略。

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