If it is determined that the terminal does not have an attribute certificate, {HEAD ~ the terminal} transmits {TAIL ~ an attribute certificate issuance suggestion message} for suggesting an attribute certificate issuing request to the terminal  
transmits
If it is determined that the terminal does not have an attribute certificate , { HEAD ~ the terminal } transmits { TAIL ~ an attribute certificate issuance suggestion message } for suggesting an attribute certificate issuing request to the terminal
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 TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH