求翻译：⑵ 源站点：在本文中也称作SAML权威机构或者安全认证机构，负责验证主体身份的合法性，并向主体提供其所需的安全信息以作为凭证（本文中即为SAML令牌由于该站点是主体身份信息提供者所以称为源站点。是什么意思？

(2) the source site: In this article, called the saml authorities or safety certification organization responsible for the verification of the legitimacy of the main identity and the main body to provide the required security information as the certificate (in this article is the saml token due to t

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正在翻译，

正在翻译，请等待...