I need to know where iOS keeps alphanumeric passcodes. Im using an ipod touch 4th gen with 4.1 jailbroken with limera1n and i made a new passcode using the alphabet. I forgot it. "Keychains-2.db" is the file that holds standard 4 digit codes but not alphanumeric codes. Can someone please help!!!

P.S. I dont want to restore my ipod

P.S.S. If i reset my ipod and i used my back up on it would i have the passcode still on it?