The import process will ask for a password twice. You can choose any password but you will need to remember it until the import has been completed.
# Clone repository
git clone https://github.com/fnkr/fedora-secure-boot.git secure-boot
cd secure-boot
# Generate MOK and start import
sudo ./install-mok YOUR_NAME
# Sign kernel modules with the newly generated MOK
# This is an example which will sign and load VirtualBox kernel modules:
sudo ./sign-and-load-vbox-modules
# Reboot to finish the MOK import
sudo reboot
To finish the import a reboot is required - UEFI will ask for the password at boot time. Once the import has finished you can sign and load kernel modules at runtime.