like i said. only one of many is known.

you need 3 keys for 3 locks.
having one key opens one lock.
having a masterkey opens maybe 2 locks. but neither opens 3 locks
the problem of ps3 is that while maste key is hardcoded and cannot ever be changed by sony, the public game keys can and will change with every firmware as wee have seen on psp.

So much for my concept idea....