Windows identity foundation 4.5 tutorial

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Hope this helps you. Keep us posted with the status of the issue to assist you further. Was this reply helpful? Yes No. After the user enters their details and submits the form, the following series of requests are issued:.

It then issues a redirect to the returnUrl. Since the user has been properly authenticated via forms authentication at this point, the root page processes the federated authentication and issues a form POST back to the relying web site, with the WIF STS security token trust:RequestSecurityTokenResponseCollection as part of the form post data.

The process flow is completed on the relying party site, upon processing the STS token and authenticating the user on the initiating relying party site.

NET Windows Identity Foundation and STS, we can now create our relying party web site a web site that authenticates using the single sign-on identity provider site. NET web site. This can be done with the Visual Studio Identity and Access add-on or it can be configured manually, as shown below. Note, the first appSetting key provides the public url to our metadata XML file, created in the first step of this tutorial.

Next, if any pages on this web site will be public not require a logged-in user , you can define them as being available to anonymous users with a location block, as follows:. Add the following code under the system. Alternatively, if you want all pages to be public, except for certain folders, you can use the following:.

Under the section system. Note, you can find the thumbprint string for the above configuration by opening mmc. Also, add a reference to your project for System.

However, MVC will throw an error if a view does not exist. A default view can be added for the LoginController. This manually redirects the user to the central STS single sign-on login web page. Both actions will lead to the central federated authentication login page. Our third controller will be for protected logged-in user content. Name for the authenticated logged-in user, and a Logout method. The Logout method will delete the cookie on the relying party web site and on the identity provider web site.

It does this through another flow of redirects to the identity provider, in order to properly delete both cookies and clear out the authentication ticket. Point it to the folder for your identity provider web site project. Note, be sure to set the application pool for the customsts. Point it to the associated folder in your web project. Set this site to run on port or one of your choosing - if you change the port, adjust the settings in the web site code accordingly.

If the request is accepted, the IP will issue a token. When the RP receives an acceptable token it will grant access to the resource the web application or a web service.

If the RP does not receive a valid token then it will deny access to the resource. In that narrative, a single sign on is accomplished without any need on the RP side to maintain any information on the IP's user population. Only the information provided in the token is necessary in order to confirm authorization and to provide the required details contained in the token's claims necessary to access the site. Nominally, one would expect to receive the token along with the user name and the user's role.

Other details could also be included such as an email address; those items being typical to Active Directory and found in the claim type class. With a token in hand, we know where the user originated and who they are along with what role they carry. Custom claims could also be created and added to the token but doing so might be beyond the reach of any entity with limited IT support. For that reason, it is suggested that only default claim types be used lest we end up doing more than limited IT support for the client company.

Roles may be established by creating one or more groups in Active Directory and adding specific users to each group to limit their access to various elements of a resource.

The purpose herein is to show how to set up a test environment and to use WIF to work with token based claims; it is not focused at all upon configuring ADFSv2. The same techniques demonstrated herein may be used to bind the application to an actual identity provider. Setting up the Demonstration Open a new instance of Visual Studio ; be sure to run the instance as administrator.

Running and debugging the application requires administrator rights; if you attempt to run the application without administrator rights it will fail. You could tenably use either a web forms or an earlier version of an MVC project template so long as the targeted framework is. NET 4. Figure 2: Selecting the Basic Application Template Once the project has loaded, open the tools menu and select "Extensions and Updates".

This will show the extension for the Identity and Access Tool. If it is not installed then click the tool and load it into Visual Studio Save everything and then restart Visual Studio as administrator. Once that is done we are all set to use Windows Identity Foundation to handle authentication requests. The next thing to be done is to configure the application to use WIF; to that end, right-click on the project name in the Solution Explorer and then select the "Identity and Access" option from the menu.

This will enable the application to simulate working with an STS without creating one. For deployment, the second option would be selected normally. The other options, once checked, will reveal other configuration settings that will be required for example. Figure 6: Identity and Access Provider Tab In this example, there are no configuration settings to make on the configuration tab but you might wish to go ahead and have a look at it anyway since it is important for deployment purposes.

In the area entitled, "Test claims to issue:" you will see a collection of claims that will be added to the token. You may edit the values, delete them, or add new ones to this claims collection. This could be important, because not every application needs all claims. As you can see in Listing 8 , the audience URI and the realm are the same. That is a convention you see often, but it is not required.

With the configuration in place, everything is set. You can see this in the top right hand corner of the Web page, as shown in Figure 5. You can only see what happened if you look at the HTTP traffic from the first request. You can tell because they go to a different URL in this case designated by a different port number. What happens is that the initial request is redirected to the STS, because the user is unauthenticated.

This is fairly easy to do, because claims are basically objects containing only data. Using ASP. Claims to a GridView. In ASP. NET MVC, you need to add a controller method that return the same collection of claims to display these in a view, as shown in Listing 9.

Next, you need to create a view. The easiest way to do this in Visual Studio is to add a strongly typed view as shown in Figure 7. However, to auto generate the view, you want to use this class anyway. A way around this is to temporarily make a ClaimModel class that inherits Claim.

Once Visual Studio has generated the view, just change ClaimModel into Claim and remove the ClaimModel class or leave it for later use. Now all you have to do is add a link somewhere to access the page displaying the claims. Figure 8 shows you what that looks like. Notice that you get a nice list indicating the original issuer, the type, and the value. You could, for instance, add more roles, and use role-based access control as you would in ASP. As just mentioned, you can use role claims to provide role-based access control.

Role claims are automatically converted to the roles you get when you use the Principal. IsInRole method. However, using a ClaimsAuthorizationManager is a much better alternative. This enables you to create authorization logic with any claim or combination of claims you like.

Also, it separates the authorization logic from the functional code, making security much easier to manage. First, you need to create a class that inherits from ClaimsAuthorizationManager for this you need to reference the System. IdentityModel assembly in the System. Claims namespace, and override the CheckAccess method. This method returns a Boolean indicating whether the user has access or not. All you have to do is determine the conditions under which a user has access.

The CheckAccess method takes a single parameter of type AuthorizationContext, which contains three properties: Action, Principal, and Resource. Both Action and Resource are collections of claims, identifying the resource s that access is checked for, and the action s taken on the resource s. For eample, a Read operation on a financial record of a bank account should only be accessible to either bank employees or the holder of the account.

Listing 10 shows code that checks exactly that. Although this example does a straight check against claims, you can also check against a database or another source of information if you want to. This is very useful if your application uses a very granular access control structure.

You need to configure the custom ClaimsAuthorizationManager in order to use it, as shown in Listing There are several ways to invoke the CheckAccess method. For any of them, you need the ClaimsPrincipalPermission class for which you need to reference the System. Services assembly.