{HEAD ~ Firmware} encrypted by {TAIL ~ the firmware encryption apparatus} 300 shown in FIG 3 and the special key data SK used in the encryption process are stored in the memory 430 
encrypted by
{ HEAD ~ Firmware } encrypted by { TAIL ~ the firmware encryption apparatus } 300 shown in FIG 3 and the special key data SK used in the encryption process are stored in the memory 430
HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH