Answers (3)
Only Ps3's available for jailbreaking is Ps3's in production from 2006-2010 because if anything they can be downgraded with a hardware flasher. Early slim models that were in production before January 2011 can also be downgraded.
The public keys are not generated so anyone can extract them if they gain access to lvo keys meaning no matter what firmware Sony dishes those keys can be retrieved but when it comes to private keys. (This is why we will never get them) They keys are generated as a random key. So there will never be a firmware passed 3.60+ Without the need of 3.55 firmware. With things such as 4.21 CFW + (Future CFWs) It all needs 3.55 to enable it because of the revisions that Sony has made.
So, just wait and hope...
