Patent ID: 7004388

Claim:
An electronic ticket issuing system, comprising: a mobile terminal including a storage for storing an electronic ticket; a ticket issuing center; an authentication department; and an authentication terminal, wherein: the mobile terminal, the ticket issuing center, the authentication department, and the authentication terminal are connected to each other via a network, and the authentication terminal is connected to the mobile terminal to perform authentication between a ticket buyer and an electronic ticket; first biological information which indicates unique physical characteristics of the ticket buyer is registered in advance in the authentication department; the mobile terminal transmits a request for ticket purchase to the ticket issuing center; the ticket issuing center transmits a request for issue of an electronic certificate to the authentication department to request the authentication department to issue an electronic certificate which corresponds to the request for ticket purchase transmitted from the mobile terminal and which validates the ticket buyer; the authentication department creates an electronic certificate including the pre-registered first biological information on the basis of the request for issue of an electronic certificate transmitted from the ticket issuing center, and transmits the electronic certificate to the ticket issuing center; the ticket issuing center creates an electronic ticket to which the electronic certificate transmitted from the authentication department is added, and transmits the electronic ticket to the mobile terminal; the mobile terminal stores the electronic ticket transmitted from the ticket issuing center in the storage; and wherein: at the time of authentication: (1) the mobile terminal transmits the electronic ticket stored in the storage to the authentication terminal; (2) second biological information which indicates unique physical characteristics of the ticket buyer is input into the authentication terminal; and (3) the authentication terminal performs authentication by comparing the first biological information, which is contained within the electronic certificate added to the electronic ticket, with the second biological information, and outputs a corresponding authentication result.