Too bad you got downvotes. It appears that kernel and/or kernel module signatures use x509 certs. https://access.redhat.com/documentation/en-US/Red_Hat_Enterpri

Too bad you got downvotes. It appears that kernel and/or kernel module signatures use x509 certs. https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/sect-signing-kernel-modules-for-secure-boot.html https://access.redhat.com/documentation/en-US/Red_Hat_Enterp... Thanks for the heads up.