Electronic ticket system, collecting terminal, service providing terminal, user terminal, electronic ticket collecting method and recording medium

An electronic ticket system for collecting electronic tickets in accordance with money bag numbers serving as collection ID information, comprising:

• user terminals which store the electronic tickets;
• at least one service providing terminal for performing deals with said user terminals;
• and
• at least one collecting terminal for collecting the electronic tickets after used for the deals;
• and
• wherein said at least one service providing terminal includes request information sending means for sending request information to said user terminals in response to dealing requests therefrom, said request information containing a collecting terminal ID code which identifies said at least one collecting terminal, and a money bag number which serves as the collection ID information,
• each of said user terminals includes signature generating means for generating a digital signature which contains the request information sent from said at least one service providing terminal, and ticket sending means for affixing the signature generated by said signature generating means to an electronic ticket to be used for a deal and for sending the electronic ticket with the generated signature to said at least one service providing terminal, and
• said at least one service providing terminal includes used ticket sending means for collecting, of the electronic tickets sent from said used terminals, electronic tickets with digital signatures which contain identical money bag numbers, and for sending the collected electronic tickets to said at least one collecting terminal which is identified by the collecting terminal ID code contained in said digital signatures.

An electronic ticket system for collecting electronic tickets in accordance with money bag numbers serving as collection ID information, comprising:

• user terminals which store the electronic tickets;
• at least one service providing terminal for performing deals with said user terminals;
• and
• at least one collecting terminal for collecting the electronic tickets after used for the deals;
• wherein said at least one collecting terminal includes supplying means for supplying a collecting terminal ID code identifying said at least one collecting terminal to said at least one service providing terminal, and generating means for generating a money bag number which serves as the collection ID information in accordance with a predetermined rule,
• said at least one service providing terminal includes request information sending means for generating a money bag number in accordance with a rule identical with the predetermined rule of said at least one collecting terminal and for sending request information, which contains the generated money bag number and the collecting terminal ID code supplied from said at least one collecting terminal, to said user terminals in response to dealing requests therefrom,
• each of said user terminals includes signature generating means for generating a digital signature containing said request information sent from said at least one service providing terminal, and ticket sending means for affixing the signature generated by said signature generating means to an electronic ticket to be used for a deal and for sending the electronic ticket with the generated signature to said at least one service providing terminal, and
• said at least one service providing terminal includes used ticket sending means for collecting, of the electronic tickets sent from said used terminals, electronic tickets with digital signatures containing identical money bag numbers, and for sending the collected electronic tickets to said at least one collecting terminal which is identified by the collecting terminal ID code contained in said digital signatures.

An electronic ticket system comprising:

• user terminals which store electronic tickets;
• and
• at least one collecting terminal for collecting the electronic tickets;
• wherein each of said user terminals includes signature generating means for generating a digital signature which contains a money bag number, serving as collection ID information and including time information, and sending means for affixing the signature generated by said signature generating means to an electronic ticket to be used for a deal and for sending the electronic ticket with the generated signature to said at least one collecting terminal, and
• said at least one collecting terminal includes storage means for storing electronic tickets which said at least one collecting terminal has received within a predetermined period, money bag number checking means for checking whether the time information, included in money bag numbers contained in digital signatures affixed to the electronic tickets sent from said user terminals, specifies time within said predetermined period, and double use checking means for checking whether the electronic tickets sent from said user terminals include no electronic tickets identical with the electronic tickets stored in said storage means.

An electronic ticket system comprising:

• user terminals which store electronic tickets;
• at least one service providing terminal for performing deals with said user terminals;
• and
• at least one collecting terminal for collecting the electronic tickets after used for the deals;
• wherein said at least one service providing terminal includes request information sending means for sending request information, containing a collecting terminal ID code which identifies said at least one collecting terminal, to said user terminals in response to dealing requests therefrom,
• each of said user terminals includes signature generating means for generating a digital signature containing the request information sent from said at least one service providing terminal, and ticket sending means for affixing the signature generated by said signature generating means to an electronic ticket to be used for a deal and for sending the electronic ticket with the generated signature to said at least one service providing terminal, and
• said at least one service providing terminal includes used ticket sending means for sending the electronic tickets received from said user terminals to said at least one collecting terminal which is identified by the collecting terminal ID code contained in digital signatures affixed to the electronic tickets.

A collecting terminal for collecting used electronic tickets in an electronic ticket system which comprises:

• user terminals which store electronic tickets;
• and
• at least one service providing terminal for performing deals with said user terminals by using the electronic tickets;
• wherein said collecting terminal includes
• supplying means for supplying a collecting terminal ID code which identifies said collecting terminal and a money bag number which serves as collection ID information to said at least one service providing terminal,
• storage management means for storing and managing the money bag number supplied to said at least one service providing terminal,
• collecting means for collecting the electronic tickets after used for the deals from said at least one service providing terminal,
• money bag checking means for checking, by reference to information stored in said storage management means, whether money bag numbers contained in digital signatures affixed to the electronic tickets collected by said collecting means are identical with the money bag number supplied to said at least one service providing terminal and have not been used before, and
• ticket checking means for checking whether the electronic tickets collected by said collecting means include no identical electronic tickets.

A collecting terminal for collecting used electronic tickets in an electronic ticket system which comprises:

• user terminals which store electronic tickets;
• and
• at least one service providing terminal for performing deals with said user terminals by using the electronic tickets;
• wherein said collecting terminal includes
• supplying means for supplying a collecting terminal ID code which identifies said collecting terminal to said at least one service providing terminal,
• generating means for generating, in accordance with a predetermined rule, a money bag number which serves as collection ID information,
• storage management means for storing and managing the money bag number generated by said generating means,
• collecting means for collecting the electronic tickets after used for the deals from said at least one service providing terminal,
• money bag number checking means for checking, by reference to information stored in said storage management means, whether money bag numbers contained in digital signatures affixed to the electronic tickets collected by said collecting means are identical with the money bag number generated by said generating means and have not been used before, and
• ticket checking means for checking whether the electronic tickets collected by said collecting means include no identical electronic tickets.

A collecting terminal for collecting used electronic tickets in an electronic ticket system which comprises:

• user terminals which store electronic tickets;
• and
• at least one service providing terminal for performing deals with said user terminals by using the electronic tickets;
• wherein said collecting terminal includes
• collecting means for collecting the electronic tickets after used for the deals from said at least one service providing terminal, and
• ticket checking means for checking whether the electronic tickets collected by said collecting means include no identical electronic tickets.

A service providing terminal for performing deals with user terminals by using electronic tickets in an electronic ticket system which comprises:

• the user terminals which store the electronic tickets;
• and
• at least one collecting terminal for collecting the electronic tickets after used for the deals;
• wherein said at least one service providing terminal includes
• request information sending means for sending request information, containing a collecting terminal ID code which identifies said at least one collecting terminal and a money bag number which serves as collection ID information, to said user terminals in response to dealing requests therefrom,
• ticket receiving means for receiving electronic tickets having digital signatures assigned thereto from said user terminals, said digital signatures containing the request information sent from said request information sending means, and
• used ticket sending means for collecting, of the electronic tickets received from said user terminals, electronic tickets with digital signatures containing identical money bag numbers, and for sending the collected electronic tickets to said at least one collecting terminal which is identified by the collecting terminal ID code contained in the digital signatures affixed to the collected electronic tickets.

A service providing terminal for performing deals with user terminals by using electronic tickets in an electronic ticket system which comprises:

• said user terminals which store the electronic tickets;
• and
• at least one collecting terminal for collecting the electronic tickets after used for the deals;
• wherein said at least one service providing terminal includes receiving means for receiving from said at least one collecting terminal a collecting terminal ID code which identifies said at least one collecting terminal,
• generating means for generating a money bag number which serves as collection ID information, in accordance with a rule identical with a generation rule employed in said at least one collecting terminal,
• request information sending means for sending request information to said user terminals in response to dealing requests therefrom, said request information containing the collecting terminal ID code received from said at least one collecting terminal and the money bag number generated by said generating means,
• ticket receiving means for receiving electronic tickets having digital signatures assigned thereto from said user terminals, said digital signatures containing the request information sent from said request information sending means, and
• used ticket sending means for collecting, of the electronic tickets received from said user terminals, electronic tickets with digital signatures containing identical money bag numbers, and for sending the collected electronic tickets to said at least one collecting terminal which is identified by the collecting terminal ID code contained in the digital signatures affixed to the collected electronic tickets.

A service providing terminal for performing deals with user terminals by using electronic tickets in an electronic ticket system which comprises:

• said user terminals which store the electronic tickets;
• and
• at least one collecting terminal for collecting the electronic tickets after used for the deals;
• wherein said at least one service providing terminal includes
• receiving means for receiving from said at least one collecting terminal a collecting terminal ID code which identifies said at least one collecting terminal,
• request information sending means for sending request information to said user terminals in response to dealing requests therefrom, said request information containing the collecting terminal ID code received from said at least one collecting terminal,
• ticket receiving means for receiving electronic tickets having digital signatures assigned thereto from said user terminals, said digital signatures containing the request information sent from said request information sending means, and
• used ticket sending means for sending the electronic tickets received from said user terminals to said at least one collecting terminal which is identified by the collecting terminal ID code contained in the digital signatures affixed to the received electronic tickets.

A user terminal for performing a deal with at least one service providing terminal in an electronic ticket system which comprises:

• said at least one service providing terminal for performing the deal with said user terminal by using an electronic ticket;
• and
• at least one collecting terminal for collecting the electronic ticket after used for the deal;
• wherein said user terminal includes
• request information receiving means for requesting and receiving request information, containing a collecting terminal ID code and a money bag number, from said at least one service providing terminal before the deal, said collecting terminal ID code identifying said at least one collecting terminal by which the electronic ticket after used for the deal is to be collected, and said money bag number serving as collection ID information,
• signature generating means for generating a digital signature containing the request information received by said request information receiving means, and
• ticket sending means for affixing the signature generated by said signature generating means to the electronic ticket to be used for the deal, and for sending the electronic ticket with the generated signature to said at least one service providing terminal.

A user terminal for performing a deal with at least one service providing terminal in an electronic ticket system which comprises:

• said at least one service providing terminal for performing the deal with said user terminal by using an electronic ticket;
• and
• at least one collecting terminal for collecting the electronic ticket after used for the deal;
• wherein said user terminal includes
• request information receiving means for requesting and receiving request information containing a collecting terminal ID code from said at least one service providing terminal before the deal, said collecting terminal ID code identifying said at least one collecting terminal by which the electronic ticket after used for the deal is to be collected,
• signature generating means for generating a digital signature containing the request information received by said request information receiving means, and
• ticket sending means for affixing the signature generated by said signature generating means to the electronic ticket to be used for the deal, and for sending the electronic ticket with the generated signature to said at least one service providing terminal.

An electronic ticket collecting method for collecting electronic tickets used in an electronic ticket system, said method comprising:

• a request information sending step of sending, from at least one service providing agency to users, request information containing a money bag number which serves as collection ID information and a collecting agency ID code which identifies at least one collecting agency, in response to dealing requests from the users;
• a ticket sending step of receiving the request information sent by said request information sending step, generating digital signatures containing the request information, affixing the generated signatures to the electronic tickets to be used for deals, and sending the electronic tickets with the generated signatures to said at least one service providing agency;
• and
• a ticket collecting step of collecting, of the electronic tickets sent by said ticket sending step, electronic tickets with digital signatures containing identical money bag numbers, and sending the collected electronic tickets to said at least one collecting agency which is identified by the collecting agency ID code contained in the digital signatures affixed to the collected electronic tickets.

An electronic ticket collecting method for collecting electronic tickets after used for deals in a system which performs the deals by using the electronic tickets, said method comprising:

• a supplying step of supplying a collecting agency ID code identifying at least one collecting agency to at least one service providing agency for performing deals;
• a generating step of generating a money bag number which serves as collection ID information in accordance with a predetermined rule;
• a sending step of generating a money bag number in said at least one service providing agency in accordance with a rule identical with the predetermined rule employed in said generating step, and sending request information, which contains the generated money bag number and the collecting agency ID code supplied by said supplying step, to users in response to dealing requests therefrom;
• a ticket sending step of receiving the request information sent by said sending step, generating digital signatures containing the request information, affixing the generated signatures to the electronic tickets to be used for deals, and sending the electronic tickets with the generated signatures to said at least one service providing agency;
• and
• a ticket collecting step of collecting, of the electronic tickets sent by said ticket sending step, electronic tickets with digital signatures containing identical money bag numbers, and sending the collected electronic tickets to said at least one collecting agency which is identified by the collecting agency ID code contained in the digital signatures affixed to the collected electronic tickets.

An electronic ticket collecting method for collecting used electronic tickets in a system, said method comprising:

• a sending step of sending request information, which contains a collecting agency ID code identifying at least one collecting agency, to users in response to dealing requests therefrom;
• a ticket sending step of receiving the request information sent by said sending step, generating digital signatures containing the request information, affixing the generated signatures to electronic tickets to be used, and sending the electronic tickets with the generated signatures to said at least one service providing agency;
• and
• a ticket collecting step of collecting, of the electronic tickets sent by said ticket sending step, electronic tickets with digital signatures containing identical money bag numbers, and sending the collected electronic tickets to said at least one collecting agency which is identified by the collecting agency ID code contained in the digital signatures affixed to the collected electronic tickets.

A recording medium having programs recorded therein, said programs being readable by a computer and making said computer function as a collecting terminal in a system which comprises:

• user terminals which store electronic tickets;
• at least one service providing terminal for performing deals with said user terminals by using the electronic tickets;
• and
• said collecting terminal for collecting the electronic tickets after used for the deals;
• wherein said programs makes said computer function as
• supplying means for supplying a collecting terminal ID code which identifies said collecting terminal and a money bag number which serves as collection ID information to said at least one service providing terminal,
• storage management means for storing and managing the money bag number supplied from said supplying means to said at least one service providing terminal,
• collecting means for collecting the electronic tickets after used for the deals from said at least one service providing terminal,
• money bag number checking means for checking, by reference to information stored in said storage management means, whether money bag numbers contained in digital signatures affixed to the electronic tickets collected by said collecting means are identical with the money bag number supplied to said at least one service providing terminal and have not been used before, and
• ticket checking means for checking whether the electronic tickets collected by said collecting means include no identical electronic tickets.

A recording medium having programs recorded therein, said programs being readable by a computer and making said computer function as a collecting terminal in a system which comprises:

• user terminals which store electronic tickets;
• at least one service providing terminal for performing deals with said user terminals by using the electronic tickets;
• and
• said collecting terminal for collecting the electronic tickets after used for the deals;
• wherein said programs makes said computer function as
• collecting means for collecting the electronic tickets after used for the deals from said at least one service providing terminal,
• money bag number checking means for checking whether money bag numbers, contained in digital signatures affixed to the electronic tickets collected by said collecting means, have not been used before, said money bag numbers serving as collection ID information, and
• ticket checking means for checking whether the electronic tickets collected by said collecting means include no identical electronic tickets.

A recording medium having programs recorded therein, said programs being readable by a computer and making said computer function as a collecting terminal in a system which comprises:

• user terminals which store electronic tickets;
• at least one service providing terminal for performing deals with said user terminals by using the electronic tickets;
• and
• said collecting terminal for collecting the electronic tickets after used for the deals;
• wherein said programs makes said computer function as
• storage management means for generating a money bag number which serves as collection ID information, and storing and managing the generated money bag number,
• collecting means for collecting the electronic tickets after used for the deals from said at least one service providing terminal,
• money bag number checking means for checking, by reference to information stored in said storage management means, whether money bag numbers contained in digital signatures affixed to the electronic tickets collected by said collecting means are identical with the money bag number generated by said storage management means and have not been used before, and
• ticket checking means for checking whether the electronic tickets collected by said collecting means include no identical electronic tickets.

A recording medium having programs recorded therein, said programs being readable by a computer and making said computer function as a service providing terminal in a system which comprises:

• user terminals which store electronic tickets;
• said service providing terminal for performing deals with said user terminals by using the electronic tickets;
• and
• at least one collecting terminal for collecting the electronic tickets after used for the deals;
• wherein said programs makes said computer function as
• request information sending means for sending request information, which contains a collecting terminal ID code identifying said at least one collecting terminal and a money bag number serving as collection ID information, to said user terminals,
• ticket receiving means for receiving, from said user terminals, electronic tickets with digital signatures containing the request information sent from said request information sending means, and
• used ticket sending means for collecting, of the electronic tickets received from said user terminals, electronic tickets with digital signatures containing identical money bag numbers, and for sending the collected electronic tickets to said at least one collecting terminal which is identified by the collecting terminal ID code contained in the digital signatures affixed to the collected electronic tickets.

A recording medium having programs recorded therein, said programs being readable by a computer and making said computer function as a service providing terminal in a system which comprises:

• user terminals which store electronic tickets;
• said service providing terminal for performing deals with said user terminals by using the electronic tickets;
• and
• at least one collecting terminal for collecting the electronic tickets after used for the deals;
• wherein said programs makes said computer function as
• generating means for generating a money bag number which serves as collection ID information in accordance with a rule identical with a predetermined rule employed in said at least one collecting terminal,
• request information sending means for sending request information, which contains a collecting terminal ID number identifying said at least one collecting terminal and the money bag number generated by said generating means, to said user terminals in response to dealing requests therefrom,
• ticket receiving means for receiving, from said user terminals, electronic tickets with digital signatures containing the request information sent from said request information sending means, and
• used ticket collecting means for collecting, of the received electronic tickets, electronic tickets with digital signatures containing identical money bag numbers, and for sending the collected electronic tickets to said at least one collecting terminal which is identified by the collecting terminal ID code contained in the digital signatures affixed to the collected electronic tickets.

A recording medium having programs recorded therein, said programs being readable by a computer and making said computer function as a user terminal in a system which comprises:

• at least one service providing terminal for performing deals by using the electronic tickets;
• and
• at least one collecting terminal for collecting the electronic tickets after used for the deals;
• wherein said programs makes said computer function as
• request information receiving means for requesting and receiving request information, which contains a collecting terminal ID code and money bag number serving as collection ID information, from said at least one service providing terminal before the deals, the collecting terminal ID code identifying said at least one collecting terminal by which the electronic tickets after used for the deals are to be collected,
• signature generating means for generating digital signatures containing the request information received by said request information receiving means, and
• ticket sending means for affixing the signature generated by said signature generating means to the electronic tickets to be used for the deals, and for sending the electronic tickets with the generated signatures to said at least one service providing terminal.