Re: Interesting possibilities for someone wanting to take down the regime
"Assuming you can get the ability to inject files into a computer in NK, and are able to fake the signature of a high ranking person's machine, you could create an incriminating file, sign it as if it was viewed by them, which once it became known to the right person would probably cause them to 'disappear'."
I think the way the system is designed, that's very risky, as you could just as easily commingle your signature with the target's, making it easy to tell it's a fake. Remember, the signature process runs within PID0, so you can't get around that without changing or compromising the kernel, and as the article notes, it takes precautions to prevent that. I wouldn't put them above integrity and signature checking.