this is because your user needs to temporarily assume Root, like it would if you did this in Terminal with the command prefaced with Sudo. You have to enter the administrator password for any operation like this.

 

Can anyone explain an easy way to certify and codesign a .component file that is protected by steinberg.

 

Classic. So many people asking like myself, what the 'source code' mystery file is and not one answer! Just use done84's method.