KMP for openSUSE Leap on OBS may need to include openSUSE key

Hi all, In a discussion with Max Lin, he has mentioned that the KMP on OBS (e.g. virtual box) can not be loaded by closing-gap kernel. That makes sense because the kernel binary is from SLE. For those KMP from SLE repo, the driver be signed by SLE key. It doesn't have problem to work with closing-gap kernel. But for those drivers from openSUSE Leap repo, they are signed by openSUSE key. The closing-gap kernel doesn't embed Leap kernel. Maybe the openSUSE Leap pubic key must be included in all KMPs in Leap repo? or at least all KMPs in Leap repo must depend on a openSUSE Leap sign key RPM. After KMP be installed and reboot, user can follow MOK manager's UI to enroll openSUSE Leap key. Any idea? Thanks a lot! Joey Lee