The SiteMinder Login Module is a standard JAAS Login Module that authenticates credentials (username/password) obtained from Java client and system login requests.
If SiteMinder authentication is successful, the SiteMinder Login Module populates a JAAS Subject with a SiteMinder Principal that contains the username and associated SiteMinder session data. Additionally, the SiteMinder Login Module propagates the identity of the authenticated user to WebSphere, which then creates its own principal and adds it to the Subject.
Note: If the SiteMinder Login Module is configured to support environments in which the Policy Server and WebSphere have separate user stores, the SiteMinder Login Module propagates a mapped user identity that matches an entry in the WebSphere user store to the WebSphere Application Server.
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