Microsoft.AspNetCore.Authentication Namespace

Contains types that enable support for authentication. IAuthenticationService is the main entry point which defines the 5 authentication actions: Authenticate (get any authentication data for a request), Challenge (used for unauthenticated requests), Forbid (used when an authenticated request should be denied), SignIn (associate a ClaimsPrincipal), SignOut (remove any associated data). At a high level, authentication is based around the concept of schemes, which are mapped to specific IAuthenticationHandler instances which are responsible for handling each of the authentication actions.

Classes

AccessDeniedContext	Provides access denied failure context information to handler providers.
AuthenticateResult	Contains the result of an Authenticate call
AuthenticationBuilder	Used to configure authentication
AuthenticationBuilderExtensions	Extension methods to configure authentication for existing APIs coexisting with an Authorization Server.
AuthenticationConfigurationProviderExtensions	Extension methods for IAuthenticationConfigurationProvider
AuthenticationFailureException	A generic authentication failure.
AuthenticationFeature	Used to capture path info so redirects can be computed properly within an app.Map().
AuthenticationHandler<TOptions>	An opinionated abstraction for implementing IAuthenticationHandler.
AuthenticationHandlerProvider	Implementation of IAuthenticationHandlerProvider.
AuthenticationHttpContextExtensions	Extension methods to expose Authentication on HttpContext.
AuthenticationMiddleware	Middleware that performs authentication.
AuthenticationOptions	Options to configure authentication.
AuthenticationProperties	Dictionary used to store state values about the authentication session.
AuthenticationScheme	AuthenticationSchemes assign a name to a specific IAuthenticationHandler handlerType.
AuthenticationSchemeBuilder	Used to build AuthenticationSchemes.
AuthenticationSchemeOptions	Contains the options used by the AuthenticationHandler<TOptions>.
AuthenticationSchemeProvider	Implements IAuthenticationSchemeProvider.
AuthenticationService	Implements IAuthenticationService.
AuthenticationTicket	Contains user identity information as well as additional authentication state.
AuthenticationToken	Name/Value representing a token.
AuthenticationTokenExtensions	Extension methods for storing authentication tokens in AuthenticationProperties.
Base64UrlTextEncoder	Allows encoding and decoding base-64 url encoded text.
BaseContext<TOptions>	Base class used by other context classes.
ClaimActionCollectionMapExtensions	Extension methods for ClaimActionCollection.
ClaimActionCollectionUniqueExtensions	Extension methods for ClaimActionCollection.
HandleRequestContext<TOptions>	Base context type for handling authentication request.
HandleRequestResult	Contains the result of an Authenticate call
JsonDocumentAuthExtensions	Authentication extensions to JsonDocument.
NoopClaimsTransformation	Default claims transformation is a no-op.
PolicySchemeHandler	PolicySchemes are used to redirect authentication methods to another scheme.
PolicySchemeOptions	Contains the options used by the PolicySchemeHandler.
PrincipalContext<TOptions>	Base context for authentication events which deal with a ClaimsPrincipal.
PropertiesContext<TOptions>	Base context for authentication events which contain AuthenticationProperties.
PropertiesDataFormat	A SecureDataFormat<TData> instance to secure AuthenticationProperties.
PropertiesSerializer	A IDataSerializer<TModel> for AuthenticationProperties.
RedirectContext<TOptions>	Context passed for redirect events.
RemoteAuthenticationContext<TOptions>	Base context for remote authentication.
RemoteAuthenticationEvents	Allows subscribing to events raised during remote authentication.
RemoteAuthenticationHandler<TOptions>	An opinionated abstraction for an AuthenticationHandler<TOptions> that performs authentication using a separately hosted provider.
RemoteAuthenticationOptions	Contains the options used by the RemoteAuthenticationHandler<TOptions>.
RemoteFailureContext	Provides failure context information to handler providers.
RequestPathBaseCookieBuilder	A cookie builder that sets Path to the request path base.
ResultContext<TOptions>	Base context for events that produce AuthenticateResults.
SecureDataFormat<TData>	An implementation for ISecureDataFormat<TData>.
SignInAuthenticationHandler<TOptions>	Adds support for SignInAsync
SignOutAuthenticationHandler<TOptions>	Adds support for SignOutAsync
SystemClock	Provides access to the normal system clock with precision in seconds.
TicketDataFormat	A SecureDataFormat<TData> instance to secure AuthenticationTicket.
TicketReceivedContext	Provides context information to handler providers.
TicketSerializer	Serializes and deserializes AuthenticationTicket instances.

Interfaces

IAuthenticateResultFeature	Used to capture the AuthenticateResult from the authorization middleware.
IAuthenticationConfigurationProvider	Provides an interface for implmenting a construct that provides access to authentication-related configuration sections.
IAuthenticationFeature	Used to capture path info so redirects can be computed properly within an app.Map().
IAuthenticationHandler	Created per request to handle authentication for a particular scheme.
IAuthenticationHandlerProvider	Provides the appropriate IAuthenticationHandler instance for the authenticationScheme and request.
IAuthenticationRequestHandler	Used to determine if a handler wants to participate in request processing.
IAuthenticationSchemeProvider	Responsible for managing what authenticationSchemes are supported.
IAuthenticationService	Used to provide authentication.
IAuthenticationSignInHandler	Used to determine if a handler supports SignIn.
IAuthenticationSignOutHandler	Used to determine if a handler supports SignOut.
IClaimsTransformation	Used by the IAuthenticationService for claims transformation.
IDataSerializer<TModel>	Contract for serialzing authentication data.
ISecureDataFormat<TData>	A contract for securing data.
ISystemClock	Abstracts the system clock to facilitate testing.

Remarks

For more information about authentication, see Introduction to authentication in ASP.NET Core.