[gTen]

Let me give explain...in windows you got certified drivers, and when you change them they are not certified any more.

There is a CRC/MD5/SHA not sure the exact but similar concept a Digital Signature that validates it bit by bit, just by changing 1 would completely break the digital signature.

Now sure you can match it and make it exact signature..but that would be 1 in a 1,000,000,000,000,000,000,000,000 chance.

simply put not possible.

The only way to make an unofficial rom run on none HardSPL is by knowing the algorithm and the secret key used. And don't about cracking the key..unless you got a few super computers running at 1.105 PFLOPS lying around in the basement somewhere.