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Which protocol is used with claims-based authentication of users?
Windows Identity Foundation (WIF) – a framework used for implementing claims-based authentication mechanisms in applications. It uses the SAML message format and WS-Federation protocol.
In classic-mode, SharePoint uses the Windows identity of the user directly. In claims-mode, SharePoint converts the Windows identity into a claims-based identity token that it can pass to other services as appropriate. App authentication and server-to-server authentication rely on claims-based authentication.
How to configure forms based authentication in SharePoint 2013?
First we need to configure Forms based authentication in the Central Administration. Open SharePoint central administration from the Application Management click on Manage web applications. This will show all the web applications. Select the web application for which you want to implement forms based authentication.
Claims-based authentication is a requirement for web applications that are deployed in scenarios that support server-to-server authentication and app authentication.
You can select basic authentication or integrated Windows authentication, or both. If you select both, SharePoint Server offers both authentication types to the client web browser. The client web browser then determines which type of authentication to use. If you only select Basic authentication, ensure that SSL is enabled.
How to configure basic authentication in Microsoft 365?
APPLIES TO: 2013 2016 2019 SharePoint in Microsoft 365 You can configure basic authentication for one or more zones in a SharePoint Server claims-based web application. A web application is an Internet Information Services (IIS) web site that SharePoint Server creates and uses.