Get fileSize of info.plist to prevent piracy

Question

I\'m trying to put anti-piracy code in my app. The previous answer to this (which I can\'t link to because of my member status - sucks) can be easily countered, since the \"

Answer 1

As said here Determining if an iPhone is Jail broken Programmatically it looks like some of the most recent cracked apps installed via install0us don't have their info.plist modified. (at least the info.plist does not contain any signeridentity key). How could we detect the crack in such a case ?