Represents a generic user.

Represents a generic principal.

Represents an exception for a principal whose identity could not be mapped to a known identity.

Represents an identity and is the base class for the System.Security.Principal.NTAccount and System.Security.Principal.SecurityIdentifier classes. This class does not provide a public constructor, and therefore cannot be inherited.

Represents a collection of System.Security.Principal.IdentityReference objects and provides a means of converting sets of System.Security.Principal.IdentityReference-derived objects to System.Security.Principal.IdentityReference-derived types.

Defines the basic functionality of an identity object.

Defines the basic functionality of a principal object.

Represents a user or group account.

Specifies how principal and identity objects should be created for an application domain. The default is UnauthenticatedPrincipal.

Represents a security identifier (SID) and provides marshaling and comparison operations for SIDs.

Defines the privileges of the user account associated with the access token.

Defines security impersonation levels. Security impersonation levels govern the degree to which a server process can act on behalf of a client process.

Defines a set of commonly used security identifiers (SIDs).

Specifies the type of Windows account used.

Specifies common roles to be used with System.Security.Principal.WindowsPrincipal.IsInRole(string).

Represents a Windows user.

Represents the Windows user prior to an impersonation operation.

Enables code to check the Windows group membership of a Windows user.