Principal

A principal represents the identity and role of a user and acts on the user's behalf. Role-based security in the .NET Framework supports three kinds of principals:

  • Generic principals represent users and roles that exist independent of Windows users and roles.

  • Windows principals represent Windows users and their roles (or their Windows groups). A Windows principal can impersonate another user, which means that the principal can access a resource on a user's behalf while presenting the identity that belongs to that user.

  • Custom principals can be defined by an application in any way that is needed for that particular application. They can extend the basic notion of the principal's identity and roles.

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