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Windows.Security.Authentication.Web namespace

Applies to Windows and Windows Phone

Enables apps to integrate with online web services without exposing a user's credentials. The web authentication broker provides a set of APIs and infrastructure for apps to use Internet authentication and authorization protocols like OAuth and OpenID.

The single sign-on (SSO) mode of the web authentication broker APIs is provided to enable users to seamlessly authenticate to a single service across multiple apps. The provider of the service must all the user to explicitly consent to that authentication, typically by providing a "Keep me logged in" option. The provider must also make it clear to the user how their identity is being used, typically by providing a link to a privacy statement from the logon page.

The Web authentication broker sample in the Samples gallery is an example of how to use single sign on (SSO) for connections.

If your app or its companion website accesses user data in or Microsoft OneDrive, the Live Connect APIs hide some of the complexities of authentication tokens and make it a bit easier to write code to work with these cloud services. For more info about the Live Connect APIs, see Using Live Connect to personalize apps (HTML) or Using Live Connect to personalize apps (XAML).


The Windows.Security.Authentication.Web namespace has these types of members:


The Windows.Security.Authentication.Web namespace has these classes.

WebAuthenticationBroker Starts the authentication operation.
WebAuthenticationResult Indicates the result of the authentication operation.



The Windows.Security.Authentication.Web namespace has these enumerations.

WebAuthenticationOptions Contains the options available to the asynchronous operation.
WebAuthenticationStatus Contains the status of the authentication operation.



Minimum supported client

Windows 8

Minimum supported server

Windows Server 2012

Minimum supported phone

Windows Phone 8.1 [Windows Phone Silverlight 8.1 and Windows Runtime apps]


Windows::Security::Authentication::Web [C++]



See also

Authentication and user identity (JavaScript)
Authentication and user identity (C#/C++/VB)
Quickstart: Connecting to an online identity provider (JavaScript)
Quickstart: Connecting to an online identity provider (C#/C++/VB)
Windows authentication broker sample



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