FIG 20 is a flowchart illustrating {TAIL ~ a process} for a reader authenticating a tag according to {HEAD ~ embodiments} 
FIG 20 is a flowchart illustrating { TAIL ~ a process } for a reader authenticating a tag according to { HEAD ~ embodiments }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD