Encryption (IP, IP -1 ) Bit01234567 1585042342618102 9605244362820124 17625446383022146 25645648403224168 3357494133251791 41595143352719113 49615345372921135 57635547393123157 IP Bit01234567 1408481656246432 9397471555236331 17386461454226230 25375451353216129 33364441252206028 41353431151195927 49342421050185826 5733141949175725 IP -1 Note: IP(IP -1 ) = IP -1 (IP) = I