If you know both the unencrypted and the encrypted content, it is trivial to extract the XOR key.Tagg7 said:Hold on... how did they figure out how to extract the XOR cipher? If implemented properly, a XOR key (especially 512(!) byte) should be computationally uncrackable. Sloppy security implementation yet again from Nintendo.
Maybe they were able to do it because every save file has identical header ? There was a screenshot from some hex editor showing a file starting with characters "SAV" ...