hardware encryption

Fellow Geekers,

I have heard a few months age about an encryption that is built on the actual hareware. Meaning that it is not base on the software. From my understanding, it is impossible to crack because on each computer, laptop, etc that it is on is different from another because it somehow encrypts based on the hareware of that peculiar machine. The inventors of this technology is a Korean company. In fact, what I heard is that, once the encryption was enable; even the inventors could not crack into the machine.
Has anyone heard of this encryption or was it just shop-talk?

I thank everyone for their input...
Harvey