The security framework is made up of four layers: security service interface, security service, security service provider interface and security provider.

该安全框架采用了分层的结构：安全服务接口层、安全服务层、安全提供者接口层和安全提供者层。

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The security framework is made up of four layers: security service interface, security service, security service provider interface and security provider.

该安全框架采用了分层的结构：安全服务接口层、安全服务层、安全提供者接口层和安全提供者层。

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