Nice to see this puzzle is still on going. It’s been years and I totally forgot about this.

So the conclusion until now is that it is only possible to crack the keys with brute force and no formula was found?

Was thinking to start working on this again but when I think of the amount of brain cells that are going to be destroyed I just shake it off.

What I could eventually do is provide some funds for funding of hardware or something needed.

Anyone thinks that with the help of some funds it can help to crack the case?