a transmitting unit configured to transmit a signal addressed to a broadcast address which does not specify a particular terminal, said signal including beacon information indicating that {HEAD ~ the terminal} has {TAIL ~ a second terminal authorization certificate} to a second terminal having a first terminal authorization certificate 
has
a transmitting unit configured to transmit a signal addressed to a broadcast address which does not specify a particular terminal , said signal including beacon information indicating that { HEAD ~ the terminal } has { TAIL ~ a second terminal authorization certificate } to a second terminal having a first terminal authorization certificate
OTH OTH OTH OTH OTH OTH OTH OTH 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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH