Which scenario should I choose to implement SSO

Dear support,

Could you assist me with the direction to which SSO scenario to use to implement in the following case?

For the local users, the customer has the MS-AD to provide the kerberos ticket to the workstations but the authentication is checked against the Oracle LDAP.

PS.: all the AD structure is replicated to the LDAP.

I saw the blog "Reusing Kerberos Token for Issuing X.509 Client Certificates with Secure Login Server" and I think it's almost what i'm looking for but in this blog the configuration still uses the MS-AD in the configuration... and in my case I should use the Oracle LDAP.

Thanks in advance!

Regards,