.NET Framework Class Library

System.Security.Principal Namespace

The System.Security.Principal namespace defines a principal object that represents the security context under which code is running. For more information, see Role-Based Security.

Namespace hierarchy

Classes

Class	Description
GenericIdentity	Represents a generic user.
GenericPrincipal	Represents a generic principal.
WindowsIdentity	Represents a Windows user.
WindowsImpersonationContext	Represents the Windows user prior to an impersonation operation.
WindowsPrincipal	Allows code to check the Windows group membership of a Windows user.

Interfaces

Interface	Description
IIdentity	Defines the basic functionality of an identity object.
IPrincipal	Defines the basic functionality of a principal object.

Enumerations

Enumeration	Description
PrincipalPolicy	Specifies how principal and identity objects should be created for an application domain. The default is UnauthenticatedPrincipal.
WindowsAccountType	Specifies the type of Windows account used.
WindowsBuiltInRole	Specifies common roles to be used with IsInRole.

See Also

.NET Framework Class Library