In Denodo Platform, the Username/Password are validated through Virtual DataPort Authentication, [LDAP](https://community.denodo.com/kb/view/document/LDAP%20authentication%20best%20practices?category=Security) and [Kerberos](https://community.denodo.com/kb/view/document/Kerberos%20Authentication%20with%20the%20Active%20Directory?category=Security) and client applications can access Virtual DataPort in several ways by using the JDBC interface, ODBC interface, ADO.NET Data Provider and the SOAP and REST Web Service interfaces.
Also, the SAML and Oauth authentication mechanism is only for HTTP protocols and JDBC, ODBC cannot use it. Further, you could enable the desired authentication for each data source, Web Service, etc. as required.
You can refer to [Server Authentication](https://community.denodo.com/docs/html/browse/8.0/en/vdp/administration/server_configuration/server_authentication/server_authentication) section under Virtual DataPort Administration Guide and Knowledge Base article [Denodo Security Overview](https://community.denodo.com/kb/view/document/Denodo%20Security%20Overview?category=Security) for more information.
Hope this helps!