LOL guessing the private key IS possible but highly unlikely you mean. I mean your chances of a correct answer are like the chances of winning the loto. Actually if I'm correct the odds of you getting the correct answer is 18,983,603,961 to 1.
You'd have to get all 49 digits correct out of MANY MANY MANY others. Youd have to go through the line of each and every guess to find if it was correct and for every faluire you do it'd be around a million years on a good computer to do this. And IF your lucky it'd be simple number lol. And that's not including if it has letters and characters.
The formula to "Guess" the correct answer is possible but so unlikely it's not even worth the try. What I'm thinking though is if we could (in some way) install a RAT and watch what the PS3 does. If we can find the formula it does we should (In my theory) be able to guess what it searches for exactly. And even then it could use a random number out of all the 49 digits everytime it searches. And even then that's a MAYBE if it goes through each 49. It could go through the first 10 etc. But we have no certianity. And even then on topofthat the updates that are newer may have programmed the PS3's keys to change CONSTANTLY. So not every ps3's keys are the same and they are never stagnant. Best bet is to just say screw it unless your a gang shot programmer and don't have a life lmao.
I agree though the person who finds those keys isn't going to just give them up. He'll have you pay to get CFW. And if I were him I'd charge a good penny lol