The objects to be added to Subject (principal, TGT, and skey) are from the login phase.

要加到Subject的对象(principal、tgt和skey)来自登录阶段。

This reference holder document contains two dynamically created fields: SKey and REFUNIDs.

该引用持有者文档包含两个动态创建的字段：skey和REFUNIDs。

You use the SKey field only as a reminder of the UNID of the original document in the source database, not for searching.

SKey字段只是用来提示源数据库中最初文档的UNID，而不用于搜索。