* Only password-authentication is supported; Multi-Factor authentication can not be implemented, and neither can alternative login methods (such as key or certificate-based authentication).
* New attributes cannot easily be added to user accounts.
==== Keycloak ====
Until all the required components are finished, A Keycloak server is be set up for authentication. After all the core features can be handled by the auth system, it will disappear again.
==== OAuth2 Service ====