Authentication Libraries

Single Sign-on extension plug-ins

Single Sign-on extension plug-ins are frameworks written and provided by 3rd party developers who wish to connect the Apple SSO Framework with their own authentication framework.

Authentication Libraries for Single Login

Some Identity Providers (IdP) are developing their own authentication libraries in Swift to take advantage of Apple's SSO framework. These libraries are designed to make the authentication process easier and bridge the gap between Apple's SSO framework and the IdP's authentication framework.

Microsoft Authentication Library (GA)

The Microsoft Authentication Library, is the easiest way to leverage the Microsoft Authenticator SSO plug-in for iOS devices. The MSAL library is provided by Microsoft to provision applications with support for Azure Active Directory and Microsoft Accounts. The library uses OAuth2 and OpenID Connect (OIDC) technologies to provide modern and secure authentication methods.
Read more about MSAL for Swift on Microsoft's website or on GitHub.

Notable Methods

getDeviceInformation - reads current device information, including whether or not SharedDeviceMode is enabled.

acquireToken - prompts for user interaction to perform the authentication. This method should be used when there is no user logged in or if the access token has become invalid or expired.

acquireTokenSilent - used when the app detects that there is a user logged in and the access token is valid. This is the method that allows a user to log in to applications automatically, and is essential for the Single Login workflow.