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- A Guide To Claims-Based Identity and Access Control
- A Guide to Claims-Based Identity and Access Control (Microsoft patterns & practices)
- Guide to claims-based identity and access control
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As systems have become interconnected and more complicated, programmers needed ways to identify parties across multiple computers. This mechanism is still widely used-for example, when logging on to a great number of Web sites. However, this approach becomes unmanageable when you have many co-operating systems as is the case, for example, in the enterprise. Therefore, specialized services were invented that would register and authenticate users, and subsequently provide claims about them to interested applications.
A Guide To Claims-Based Identity and Access Control
When a user tries to access a restricted section of Kentico, for example the administration interface, the system redirects the user to a logon page of an Identity provider.
This token carries information about the authenticated user the user's identity , which is referred to as claims. Based on the trust of the application to the identity provider, the application then treats the user as authenticated.
The application also authorizes the user to access features and functionality according to the claims in the token. This authentication model enables users to authenticate on one domain and gain access to all other domains that trust the same identity provider running on-premises or in the cloud. As a result, users do not need to create multiple accounts on different domains and provide their credentials every time they want to access an application or service. To use an analogy, imagine you are riding a motorcycle.
Police officers stop you and want to know who you are and whether you are permitted to ride a motorcycle. You can show them a paper with your name and a statement that you are allowed to ride a motorcycle.
Or you can present them a driver's licence, which you have acquired from a government institution. The police officers may or may not believe a piece of paper this corresponds to the idea of authenticating users within the application itself. The police officers do not care how the authentication occurred, because they trust the institution. Application - in this context, it is an application which uses claims-based authentication.
Also referred to as the Relying party , because the application relies on security tokens obtained from the identity provider. Identity provider - a service that authenticates users and issues security tokens containing claims.
For example, Active Directory Federation Services. Security Token Service - a web service that packages claims into encrypted security tokens. SAML - a standard data format, which is used for encoding security tokens. Token - a message containing claims. In Kentico, the claims retrieved from the token are only the name and e-mail of the authenticated user. Windows Identity Foundation WIF - a framework used for implementing claims-based authentication mechanisms in applications.
The claims-based authentication in Kentico is based on this framework. When users try to access a restricted section of Kentico 1. The users authenticate to the identity provider 3.
When users are logged in, they can access all applications that rely on the same identity provider the single sign-on principle.
After users log out of Kentico, they are logged out of all applications that rely on the same identity provider the single sign-out principle. Similarly, if the users log out of other applications, which rely on the same identity provider as your Kentico application, they are automatically logged out of Kentico as well.
As a result, the authentication may not work correctly for certain identity providers such as OneLogin. To use incompatible identity providers, you need to set up custom claims-based authentication. When the user's session authentication cookie expires in Kentico, the session on the identity provider's side may still be active. In such cases, the user is logged out of Kentico, but not out of other applications that trust the same identity provider.
Therefore, it is recommended to set the same session expiration interval for Kentico and the identity provider see Web. When a user signs into Kentico using claims-based authentication, the system creates a corresponding user in the system with the Is external flag enabled. The claims-based authentication implemented in Kentico handles only the authentication of users uses only the name and e-mail of users from the tokens , you have to configure the authorization of users permissions and roles in Kentico itself.
When you enable claims-based authentication, the system automatically disables the following features:. Before you start configuring the claims-based authentication, first create a user account with administrator access. This will allow you to sign in as an administrator after you enable the claims-based authentication. After you enable the claims-based authentication, sign in as this user to gain administrator permissions. If you have already enabled claims-based authentication and you do not have access to the Kentico administration interface, add the CMSEnableWIF key to the web.
This overwrites the settings in the user interface and disables claims-based authentication. Note : You may need to set up SSL for your site to use certain identity providers.
Users need to log in through the identity provider specified by the settings below for example Active Directory Federation Services. Disables the standard authentication mechanisms in Kentico.
Enter a URI that identifies your website or application. You can use your website's domain name and virtual directory if applicable in most cases.
The value must be exactly the same as in the relying party configuration of your identity provider, including letter case, any trailing slashes and the protocol http or https.
URIs of allowed audience for the identity provider, separated by semicolons. The value must match the corresponding relying party settings of your identity provider, including letter case, any trailing slashes and the protocol http or https. To allow the authentication for all restricted sections of your website and the Kentico administration interface, use the base domain name of the website. Enter the thumbprint of the certificate used to secure the communication between Kentico and the identity provider.
Sets the validation mode used for the X. See Working with Certificates. The Kentico application now uses claims-based authentication and no longer has direct control over the user authentication process. You can configure your own actions that the system perform after a user accesses a restricted section of Kentico or after a user tries to log out.
Lightweight explanation To use an analogy, imagine you are riding a motorcycle. How claims-based authentication works in Kentico When users try to access a restricted section of Kentico 1. Must support SAML version 1.
The returned token must provide a claim containing the user name and properly declare the name claim type.
Session expiration When using claims-based authentication, the session is established in the following way: A user authenticates using the identity provider. A session is initiated for the user on the identity provider's side. The user is redirected to the Kentico website. Another session is initiated in Kentico, based on the forms authentication mechanisms Kentico creates the authentication cookie.
Managing users and permissions When a user signs into Kentico using claims-based authentication, the system creates a corresponding user in the system with the Is external flag enabled. Configuring claims-based authentication To start using claims-based authentication: Establish an identity provider service for example Active Directory Federation Services.
Configure the service so that it accepts your Kentico application as a relying party. Disabling claims-based authentication without administrator access If you have already enabled claims-based authentication and you do not have access to the Kentico administration interface, add the CMSEnableWIF key to the web.
You can find the value in the provider's configuration interface or WS-Federation metadata. Trusted certificate thumbprint Enter the thumbprint of the certificate used to secure the communication between Kentico and the identity provider. Chain trust - accepts certificates whose chain of trust leads to a trusted certification authority. Peer trust - accepts self-issued certificates. Peer or chain trust - accepts self-issued certificates, or certificates with a chain that leads to a trusted certification authority.
None - no validation of the certificate is done and the system accepts any certificate with the given thumbprint.
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A Guide to Claims-Based Identity and Access Control (Microsoft patterns & practices)
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Published by Microsoft Press in [Redmond, Wash. Written in English. This book gives you enough information to evaluate claims-based identity as a possible option when you're planning a new application or making changes to an existing one. It is intended for any architect, developer, or information. Bookmark the permalink. A guide to claims-based identity and access control: authentication and authorization for services and the web.
The key strength of claims-based identity is that it. abstracts the individual elements of identity and access. control into two parts; a single.
Guide to claims-based identity and access control
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The yardmaster had left him a bottle of excellent vodka, she said she was thirty-two. Since the entire access control system runs on MVC area-controller-action sets. And we give super admins and admins exclusive access through a claim. So he started to do for his legs what he had already achieved for his arms, followed by a scream from Bennie!