FIG 5 also illustrates {HEAD ~ the authentication engine} 215 comprising {TAIL ~ a comparator} 515, a data splitting module 520, and a data assembling module 525 
comprising
FIG 5 also illustrates { HEAD ~ the authentication engine } 215 comprising { TAIL ~ a comparator } 515 , a data splitting module 520 , and a data assembling module 525
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH