Use an HTTP Basic provider to enable automatic application registration. This provider is required when registration is set to automatic, and will be used for integrating with third-party security providers like SiteMinder.
A LoginModule validates standard username/password style credentials by passing them to a Web server. Configure the URL property to point to a Web server that challenges for Basic authentication.
For example, SiteMinder is often used in mobile deployments to protect existing Web-based applications. Existing users point their browser at a URL, and SiteMinder intercepts an unauthenticated session to challenge for credentials (Basic). When the authentication succeeds, it returns a SMSESSION cookie with a Base64-encoded value that can be used for SSO into other SiteMinder enabled systems.