Question

I have been reading about this Sony vs GeoHot case. I however don’t understand what this root key is (I program mainly on windows, linux is blank to me).

Answer 1

@Jeff Parker

The concept is similar to digital signatures. A ‘digital
signature’ is created for an application using this root key, and its
validity is checked on the console before execution is allowed. Having
the root key allows people to create their own application signatures,
thereby allowing 3rd party code to run on the PS3, once a valid
signature is generated for it.