In a typical application, the authentication method or device may be used to authenticate a remote service, such as {HEAD ~ a web site}, to a user operating a workstation connected to {TAIL ~ a communications network} 
In a typical application , the authentication method or device may be used to authenticate a remote service , such as { HEAD ~ a web site } , to a user operating a workstation connected to { TAIL ~ a communications network }
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 HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL