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# Enterprise single sign-on (SSO)

## Topics

### Performing enterprise single sign-on

[`ASAuthorizationSingleSignOnProvider`](/documentation/AuthenticationServices/ASAuthorizationSingleSignOnProvider)

A mechanism for generating requests to authenticate users with third-party providers.

[`ASAuthorizationSingleSignOnCredential`](/documentation/AuthenticationServices/ASAuthorizationSingleSignOnCredential)

A credential that results from a successful single sign-on (SSO) authentication.

[`ASAuthorizationProviderExtensionAuthorizationRequestHandler`](/documentation/AuthenticationServices/ASAuthorizationProviderExtensionAuthorizationRequestHandler)

An interface through which a single sign-on (SSO) authentication provider extension handles authentication requests.

[`ASAuthorizationProviderExtensionAuthorizationResult`](/documentation/AuthenticationServices/ASAuthorizationProviderExtensionAuthorizationResult)

The result of an authorization request.

[`ASAuthorizationController.RequestOptions`](/documentation/AuthenticationServices/ASAuthorizationController/RequestOptions)

Options that modify how a controller performs authorization requests.


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