For the application built using Canvas, you can either use your existing entitlement service for authenticating and authorizing users OR use the authentication service provided by Canvas. In the first scenario, a centralized authentication system (e.g. ARX) is available and users of the applications (including the one built using Canvas) are authenticated by that central system on its log-on page. In the second scenario, Canvas' log-in sequence is used for authenticating users.
Even though Canvas offers a default authentication provider, you can use other authentication provider, such as ARX, to authenticate users and validate their entitlement.
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