processing a message in accordance with an asymmetrical public key encryption algorithm via {HEAD ~ at least one crypto processing segment}, based on {TAIL ~ the k key fragments}, to produce an encrypted message 
based on
processing a message in accordance with an asymmetrical public key encryption algorithm via { HEAD ~ at least one crypto processing segment } , based on { TAIL ~ the k key fragments } , to produce an encrypted message
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH