public Certificate createCertificate(String username, String password, Certificate incert) throws RemoteException, ObjectNotFoundException, AuthStatusException, AuthLoginException, SignRequestSignatureException;
public Certificate createCertificate(String username, String password, PublicKey pk) throws RemoteException, ObjectNotFoundException, AuthStatusException, AuthLoginException;
    public Certificate createCertificate(String username, String password, Certificate incert) throws RemoteException, ObjectNotFoundException, AuthStatusException, AuthLoginException, SignRequestSignatureException;