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What is the difference between Classic mode authentication and Claims-based authentication?

Posted By :Zakeer     Posted Date :October 14, 2011    Points :40   Category :SharePoint 

As the name implies, classic authentication supports NT authentication types like Kerberos, NTLM, Basic, Digest, and anonymous. Claims based authentication uses claims identities against a against a trusted identity provider.

You can also find related Interview Question to What is the difference between Classic mode authentication and Claims-based authentication?  below: 

Which authentication mode lets you use both SQL Server logins and Windows logins?

  
Mixed Mode authentication mode lets you use both SQL Server logins and Windows logins? (More...)

Forms-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 [3,7].
This mechanism will automatically redirect the unauthenticated user to login page and ask them to provide proper credentials (e.g. username/password combination). If login is successful, ASP.NET then issues the cookie to the user and redirects them to specific resources that they originally requested. This cookie allows the user to revisit particular protected resources without having to repeatedly log in.

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What is the difference between login controls and Forms authentication?

  
Login controls are an easy way to implement Forms authentication without having to write any code. For example, the Login control performs the same functions you would normally perform when using the FormsAuthentication class—prompt for user credentials, validate them, and issue the authentication ticket—but with all the functionality wrapped in a control that you can just drag from the Toolbox in Visual Studio. Under the covers, the login control uses the FormsAuthentication class (for example, to issue the authentication ticket) and ASP.NET membership (to validate the user credentials). Naturally, you can still use Forms authentication yourself, and applications you have that currently use it will continue to run. (More...)

What is the difference between login controls and Forms authentication?

  
Forms authentication can be easily implemented using login controls without writing any code.
Login control performs functions like prompting for user credentials, validating them and issuing authentication just as the FormsAuthentication class.
However, all that's needs to be dne is to drag and drop the use control from the tool box to have these checks performed implicitly.
The FormsAuthentication class is used in the background for the authentication ticket and ASP.NET membership is used to validate the user credentials. (More...)

What is the basic difference between authentication and authorization?

  
Authentication is a process of identifying a user based on their credentials like userID and Password.
Authorization is process of determining whether an authenticated user is allowed to access a specific resource or not.
(More...)

Difference between authentication and authorization?

  
Authentication is a process of identifying a user based on their credentials(means user id and password).

Authorization is process of determining whether an authenticated user is allowed to access a specific resource or not. (More...)

Difference between Authentication and
authorization?

  
Authentication is verifying the identity of a user and authorization
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Difference between login controls and Forms authentication?

  

Forms authentication can be easily implemented using login controls without writing any code.

Login control performs functions like prompting for user credentials, validating them and issuing authentication just as the FormsAuthentication class.

However, all that’s needs to be dne is to drag and drop the use control from the tool box to have these checks performed implicitly.

The FormsAuthentication class is used in the background for the authentication ticket and ASP.NET membership is used to validate the user credentials. (More...)

what is claim based authentication in SharePoint 2013

  
Claims-based authentication is the default and preferred method of user authentication, and is required to take advantage of server-to-server authentication and app authentication in SharePoint 2013. Claims-based SharePoint 2013 Web applications can be created both through the Central Administration page as well as through the use of Windows PowerShell cmdlets (More...)

What is the difference between authentication and authorization?

  
With the login page, when we put our userid and password and click the submit button, then the combination of that entered
userid and password is sent to the server and then server checks if that combination is existing with the server or not. This process
is called the authentication.

After the authentication is completed, if the server found the userid and password combination is true, the server redirect the user
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Windows Authentication

  
This type of authentication is possibly the easiest of all to implement. Windows authentication can be used in conjunction with almost all authentication methods provided by IIS (e.g. Basic, Digest, NTLM or Kerberos Authentication), except Anonymous Authentication [2,4]. There is no need to write any code to validate the user as IIS has already authenticated their Windows credentials. Basically, Windows authentication makes use of the authentication capabilities of IIS. IIS will complete its authentication first then ASP.NET will use the authenticated identity's token to decide whether the access is granted or denied.
This mechanism is usually implemented when the users are part of Windows domain and the authenticated users are to be impersonated so that the code is executed in the same security context of the user's Windows account [4].
When a user requests specific resources, this request will go to IIS. IIS authenticates the user and attaches the security token to it. It will then pass the authenticated request and security token to ASP.NET. If impersonation is enabled, ASP.NET impersonates the user using the security token attached and sees whether the user is authorized to access the resources in the section in Web.config file. If the access is granted, ASP.NET will send the requested resources through IIS, or else, it sends error message to the user.


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Passport Authentication

  
As stated above, this authentication mechanism provides a centralized authentication service that offers single sign-in for access the member sites. The following scenarios support the use of Passport Authentication [2]:
. The username and password database or login page is not maintained; and
. Willing to provide personalized content; and
. The site will be used in conjunction with other Passport sites; and
. Willing to give single sign-in capability to the users (More...)

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