Friday, 13 September 2013

Difference Between Classic based Claim based and Form based authentication.

Classic Based Authentication
§  You cannot configure the Forms based authentication if your web application is using Classic Mode Authentication.You can convert a web application from Classic Mode Authentication to Claims Based Authentication. However, that can only be done using PowerShell commands and its an irreversible process.
§  Classic authentication supports authentication types like Kerberos, NTLM,  anonymous.
§  Classic is more commonly seen in 2007 environments.
Claim Based Authentication
§  It enables authentication from windows as well as non-windows based systems. This also provides the capability to have multiple authentication in a single URL.
§  Claims based authentication uses claims identities against a against a trusted identity provider.
§  Claims are the recommended path for new deployments in SharePoint 2010.
Form Based Authentication
§  Forms-based authentication is used when we use Claim based authentication. Forms-based authentication is used to implement customized logic for authenticating users without having to worry about session management using cookie.

§  It gives developer more access to specify which files on the site can be accessed and by whom, and allows identification of a login page.

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