The programmable device is programmed to include four processing engines, each of which performs a single MD5 stage having {HEAD ~ four MD5 operations} performed by {TAIL ~ the MD5 stage} 
performed by
The programmable device is programmed to include four processing engines , each of which performs a single MD5 stage having { HEAD ~ four MD5 operations } performed by { TAIL ~ the MD5 stage }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL