JP2003144753A - Communication game system, communication game method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication game system capable of preventing fraudulency and playing a game favorably, a method, a server, a client, an information processing system, an information control device, an information processor and a program. SOLUTION: The server device 10 comprises a computer and is provided with server communication means 1004, server control means 1004, display means 1006, input means 1008, and game means 1010. The server communication means 1002 is communicated with each client devices 20 via the Internet 30. The game means 1010 executes a game by executing software of the game by the CPU.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a communication game system, a communication game method, a server, a client, an information processing system, an information processing method for playing a game through communication.
The present invention relates to an information management device, an information processing device, and a program.

[0002]

2. Description of the Related Art In a system in which a server and a plurality of clients are connected via the Internet, a technique for playing a game between the server and each client has already been put into practical use. It is expected that gambling will be performed using such a system in the near future.

[0003]

However, in such a system for playing a game via the Internet, since the game is played in a state where the players are away from each other, in the process of exchanging information via the Internet, There is an opportunity to perform fraudulent acts (fake) by tampering with data, such as by using the information transmission time. Further, when playing such a game, in a configuration in which the information management device and the plurality of information processing devices communicate information via a communication line, information is transmitted between the plurality of information processing devices and the information management device. When performing information processing by
When the information is tampered with, it is required to surely detect the tampering. The present invention has been made in view of such circumstances, and an object thereof is a communication game system and a communication game method which can prevent cheating of a player who plays a game and are advantageous when the game is played as a gambling game. , Providing servers, clients and programs. Further, the object of the present invention is to
Provided are an information processing system, an information processing method, an information management device, an information processing device, and a program, which are advantageous for surely discovering that information transmitted between the plurality of information processing devices and the information management device has been tampered with. To do.

[0004]

In order to achieve the above object, the present invention is a public key encryption system in which a server and a plurality of clients are connected via a communication line, and information is exchanged between the server and each client. In the communication game system based on, the server includes a server communication unit that communicates via the communication line, a game unit that executes a game, and a server control unit, and each of the clients includes: Display means for displaying information, client communication means for communicating via the communication line, key generation means for generating a public key and a secret key based on the public key encryption method, and client control means. The execution of the game by the game means of the server is performed using the game data transmitted from each of the client communication means to the server communication means. The key generation means of each client generates the first and second prime numbers in the process of generating the public key and the secret key, and at the same time, generates the composite number which is a non-prime number composed of the product of the first and second prime numbers. And each client communication unit is configured to send the composite number to the server, and the server control unit receives all the composite numbers in the server communication unit. The client control means is configured to transmit the composite number to the client communication means, and the client control means displays all the composite numbers received by the client communication means by the display means, and then the client communication means. Is configured to transmit both of the first and second prime numbers to the server as the game data.

Further, the present invention is a communication game method for a server in which a plurality of clients are communicably connected via a communication line, the method being generated based on the first and second prime numbers generated by the clients. In addition, the first step of receiving from the client a composite number that is a non-prime number that is the product of the first and second prime numbers, and that the server receives all the composite numbers sent from the clients A second step of transmitting the composite number to each of the clients; and after displaying all the composite numbers received by the client from the server on the display means of the client, both of the first and second prime numbers are displayed. Third is received from each of the clients as game data.
And a fourth step of playing a game using the game data transmitted from each client to the server.

Further, the present invention is a server connected to a plurality of clients via a communication line, the server communication means performing communication via the communication line, the game means executing a game, and the server control. Means for playing the game using the game data transmitted from each of the clients to the server communication means, the server communication means being generated by each of the clients. The server control means is configured to receive from the client a composite number which is a non-prime number composed of a product of first and second prime numbers, and when the server communication means receives all the composite numbers of the clients, all Is configured to send the composite number of each of the client communication means, the server communication means is received by each of the clients. After all of the composite number is displayed in the client, characterized in that it is configured to receive the transmitted first, both the second prime number as the game data from the client.

Further, the present invention is a client connected to a server via a communication line, the client comprising display means for displaying information and client communication means for communicating via the communication line. , A game data generation unit and a client control unit, wherein the game data generation unit is a non-prime number that is a product of the first and second prime numbers and that is a product of the first and second prime numbers. Configured to generate a composite number, the client communication means configured to send the composite number to the server, and the client control means to connect the server from all clients connected to the server. When all the composite numbers are transmitted to the client communication means because all the composite numbers are received, the client communication means receives the composite numbers. After displaying all the composite numbers by the display means, the client communication means is configured to transmit both the first and second prime numbers to the server as game data. To do.

Further, the present invention is a program of a server connected to a plurality of clients via a communication line, and is a composite number which is a non-prime number composed of a product of first and second prime numbers generated by each client. 10th to receive each
Step, and an eleventh step of transmitting all the composite numbers to each of the clients upon receipt of all the composite numbers transmitted from the clients in the tenth step, and each of the clients receiving from the server After displaying all the synthesized numbers on the display means of the client, a twelfth step of transmitting both of the first and second prime numbers to the server as game data, and transmitting from each client to the server. And a thirteenth step of playing a game using the game data.

Further, the present invention is a program of a client connected to a server via a communication line, which generates a first and a second prime number and is a non-prime number composed of a product of the first and second prime numbers. 20th step of generating a composite number that is, 21st step of transmitting the composite number generated in said 20th step to said server, and said server transmitting from all said clients connected to said server A second display of all the composite numbers received by the client from the server by transmitting all the composite numbers to the client upon receipt of all the composite numbers that have been received;
It is characterized in that the client is made to perform two steps and a twenty-third step of transmitting both the first and second prime numbers to the server as game data after the client has performed the twenty-second step. .

Therefore, after the composite number is displayed, both the first and second prime numbers are transmitted to the server as the game data. If there is a fraudulent act such as tampering with the first and second prime numbers, the relation between the composite number and the first and second prime numbers becomes inconsistent, and the fraudulent act can be found.

Further, the present invention is a communication game system in which a server and a plurality of clients are connected via a communication line, and information is exchanged between the server and each client, wherein the server is Each of the clients includes a server communication unit that communicates via a communication line, a game unit that executes a game, and a server control unit.
Display means for displaying information, client communication means for communicating via the communication line, random number generation means for generating random numbers, hash data generation means for generating hash data of the random numbers, and the random numbers are predetermined. It has a game data generation means for generating game data divided into bit numbers and a client control means, and the execution of the game by the game means of the server is transmitted from each of the client communication means to the server communication means. The client communication means is configured to transmit the hash data to the server, and the server control means causes the server communication means to transmit all the hash data. Upon receipt, it is configured to send all said hash data to each said client communication means. , Each client control means,
After displaying all the hash data received by the client communication unit by the display unit, the client communication unit is configured to transmit the game data to the server.

Further, the present invention is a communication game method for a server in which a plurality of clients are communicably connected via a communication line, wherein random number hash data generated by the client is received from the client. One step, a second step in which the server receives all the hash data transmitted from each of the clients, and a second step in which all the hash data is transmitted to each of the clients, and each client receives from the server After displaying all the hash data on the display means of the client, each client receives the game data generated by dividing the random number into a predetermined number of bits, and the third step of receiving the game data. The fourth step of playing the game using the game data Characterized in that it contains.

The present invention is also a server connected to a plurality of clients via a communication line, the server communicating means for communicating via the communication line, and game means for executing a game. And a server control unit, the game unit is configured to play a game using the game data transmitted from each client to the server communication unit, and the server control unit is configured to perform each game. Is configured to transmit all the hash data to each of the clients when the server communication unit receives all of the hash data generated from random numbers, and the server communication unit is configured to transmit all the hash data received by the clients. After displaying the hash data, the game data generated by dividing the random number into a predetermined number of bits is forwarded. Characterized in that it is configured to receive from the client.

Further, the present invention is a client connected to a server via a communication line, the client comprising display means for displaying information and client communication means for communicating via the communication line. A random number generation unit that generates a random number, a hash data generation unit that generates hash data of the random number, a game data generation unit that divides the random number for each predetermined number of bits to generate game data, and a client control unit And the client communication means is configured to send the hash data to the server, and the client control means includes all the hash data from all clients to which the server is connected to the server. All the hash data is transmitted to the client communication means upon receipt of After displaying by said display means all of the hash data received by said client communication means, characterized in that it is configured to transmit the game data to the server by the client communication means.

Further, the present invention is a program of a server connected to a plurality of clients via a communication line, the thirtieth step of receiving hash data of random numbers generated by each client, and the thirtieth step. A step of transmitting all the hash data to the clients upon receipt of all the hash data transmitted from the clients in step 31
And displaying all the hash data received by each client from the server on the display means of the client, and transmitting the game data generated by dividing the random number into predetermined number of bits to the server. It is characterized in that the server is caused to execute a thirty-second step and a thirty-third step of playing a game using the game data transmitted from each of the clients to the server.

Further, the present invention is a program of a client connected to a server via a communication line, which generates a random number and generates hash data of the random number.
A step, and a 41st step of transmitting the hash data generated in the 40th step to the server,
The client receives from the server by transmitting all the hash data to the client when the server has received all the hash data transmitted from all the clients connected to the server. 42nd step of displaying all the hash data on the display means of the client,
After the client has performed step 42,
A forty-third step of transmitting the game data generated by dividing the random number for each predetermined number of bits to the server, and causing the client to execute.

Therefore, after the hash data is displayed by the display means, the game data is transmitted to the server. If there is a fraudulent act such as tampering with the game data, the relationship between the hash data and the game data becomes inconsistent, and the fraud can be found.

Further, in order to achieve the above-mentioned object, the information processing system of the present invention comprises an information management device and a plurality of information processing devices connected via a communication line, and the information processing device is provided with predetermined conditions. Seed information generating means for generating seed information, authentication information generating means for generating authentication information that is irreversibly and uniquely generated based on the seed information generated by the seed information generating means, and seed information transmitting means The information management device includes an authentication information receiving unit that receives the authentication information from each of the plurality of information processing devices, and all of the plurality of authentication information received by the authentication information receiving unit. Authentication information transmitting means for transmitting to each of the plurality of information processing devices, and each of the seed information transmitting means of the plurality of information processing devices,
The seed information generated by the seed information generation means is transmitted to the information management device after receiving all of the plurality of authentication information transmitted from the information management device. .

Further, the present invention is an information processing method of an information management apparatus in which a plurality of information processing apparatuses are connected via a communication line, wherein the information processing apparatus generates seed information according to a predetermined condition, Based on the seed information, irreversibly and uniquely generated authentication information, the authentication information receiving step of receiving from each of the plurality of information processing devices, all of the plurality of the authentication information received by the authentication information receiving step An authentication information transmitting step of transmitting to each of the plurality of information processing devices, and generating by the information processing device after each of the plurality of information processing devices receives all of the plurality of authentication information transmitted from the information management device A seed information receiving step of receiving the generated seed information from each of the plurality of information processing devices.

Further, the present invention is an information management device in which a plurality of information processing devices are connected via a communication line, and is irreversible and unique based on seed information generated in each of the plurality of information processing devices. Authentication information receiving means for receiving the generated authentication information from each of the plurality of information processing devices, and transmitting all of the plurality of authentication information received from the authentication information receiving means to each of the plurality of information processing devices Authentication information transmitting means, and seed information receiving means for receiving the seed information generated in each of the plurality of information processing devices after the authentication information transmitting means transmits the authentication information. To do.

Further, the present invention is an information processing apparatus connected to an information management apparatus via a communication line, wherein the seed information generating means generates seed information according to a predetermined condition, and the seed information generating means generates the seed information. Based on the seed information, the authentication information generation means for generating authentication information that is irreversibly and uniquely generated, and the other information processing apparatus connected to the information management apparatus via a communication line. And a seed information transmitting unit for transmitting the seed information generated by the seed information generating unit to the information management device after receiving all the authentication information corresponding to the seed information.

Further, the present invention is a program for causing a plurality of information processing devices to be executed by an information management device connected via a communication line, and seed information generated in each of the plurality of information processing devices. An authentication information receiving step of receiving authentication information generated irreversibly and uniquely based on each of the plurality of information processing devices, and all of the plurality of authentication information received in the authentication information receiving step, An authentication information transmitting step for transmitting to each of the processing devices, and a seed information receiving step for receiving the seed information generated in each of the plurality of information processing devices after transmitting the authentication information by the authentication information transmitting step. Is executed by the information management device.

Further, the present invention is a program for causing an information processing apparatus connected to an information management apparatus via a communication line to execute, and a seed information generating step for generating seed information according to a predetermined condition, An authentication information generating step of generating authentication information that is irreversibly and uniquely generated based on the seed information generated by the seed information generating step;
After receiving all of the authentication information corresponding to the seed information generated in each of the other information processing devices connected to the information management device via a communication line, the information generated in the seed information generating step And a seed information transmitting step of transmitting seed information to the information management device, the information processing device being caused to execute the seed information transmitting step.

Therefore, according to the present invention, since the seed information is sent to the information management device after the authentication information is received from the information management device, the seed information is tampered with on the information transmission path or the information management device. In this case, the fraud can be found using the authentication information received by the information processing device. Further, even if one of the information processing apparatuses changes the seed information transmitted by itself based on the information transmitted from another information processing apparatus, the fraud can be detected. Therefore, each information processing device does not need to send seed information at the same time,
It can be sent to the information management device at different times.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION The communication game system, method, server, client and program of the present invention, and
A first embodiment of an information processing system, method, information management device, information processing device, and program will be described. In the first to third embodiments described below, the case where the game is played as a gambling will be described. FIG. 2 is a configuration diagram showing a schematic configuration of the communication game system. A communication game system 100 as an information processing system includes a server device 10 as an information management device,
A plurality of client devices 20 constituting the information processing device
(20-1 to 20-m), and the Internet 30 as a communication line connecting the server device 10 and each client device 20. The server device 10 and each client device 20 can exchange information with each other based on a public key encryption method. That is, the public key infrastructure: PKI (Publ) by the server device 10 and each client device 20.
icKey infrastructure) is configured.

FIG. 1 is a block diagram showing a schematic configuration of the server device 10 and the client device 20. As shown in FIG. 1, the server device 10 is composed of a computer, and includes a server communication unit 1002, a server control unit 1004, a display unit 1006, and an input unit 100.
8, game means 1010 and the like.
The server communication unit 1002 uses the Internet 3
It is configured to communicate with each of the client devices 20 via 0. The server control means 1004
Controls the above-mentioned respective parts. Display means 1
Reference numeral 006 includes a monitor device and the like, and is configured to display an image necessary for playing a game on the screen. The input unit 1008 is composed of a mouse, a keyboard and the like, and is configured to perform operations and information necessary for playing a game. The game means 101
0 executes a game, and is realized by the CPU executing game software. Since the detailed processing contents of the game executed by the game means 1010 are not directly related to the gist of the present invention, the description thereof will be omitted, and the necessary processing contents will be briefly described in the later-described operation description. Further, the server device 10 is configured to cause the respective units to function by the CPU executing a server program installed in a hard disk device which is a storage unit provided in the computer. The server program may be installed in the server device 10 by downloading via the Internet, or the server program recorded on a recording medium such as a CD-ROM may be installed via a CD-ROM drive device. It may be performed by reading. Further, the server program may be preinstalled in the server device 10. Further, the server device 10
It goes without saying that each of the above means constituting the above may be realized by hardware.

The client device 20 is configured to be connectable to a personal authentication device 22 described later. In the present embodiment, the client device 20 and the personal authentication device 2
The client and the information processing apparatus of the present invention are configured by 2. The client device 20 is composed of a computer and has a client communication means 200.
2, client control means 2004, display means 200
6, the input means 2008 is provided. The client communication unit 2002 is configured to communicate with the server device 10 via the Internet 30. The client control means 2004 controls the respective units. The display unit 2006 is composed of a monitor device and the like, and is configured to display an image necessary for playing a game on the screen. The input means 2008 is composed of a mouse, a keyboard, and the like, and is configured to carry out operations and information necessary for playing a game. Further, the client device 20 is configured to operate by the CPU executing a client program installed in a hard disk device which is a storage unit provided in the computer. The client program may be installed in the client device 20 by downloading via the Internet, or the client program recorded on a recording medium such as a CD-ROM may be installed via a CD-ROM drive device. It may be performed by reading. Also, the server program may be pre-installed in the client device 20. Further, it goes without saying that each of the means constituting the client device 20 may be realized by hardware.

A personal authentication device 22 is connectably provided to the client device 20. The personal authentication device 22 authenticates that the player operating each client device 20 is a previously registered person.
Personal identification of the player is necessary to prevent minors from gambling. As shown in FIG. 3, the personal authentication device 20 is provided with a fingerprint collation sensor 2202 at a position facing the outside of the housing 2001, and information can be exchanged with the client device 20 via a cable 2203. Has been done. The exchange of the above information is, for example, US
It is performed based on the B standard.

As shown in FIG. 4, the personal authentication device 22
In addition to the fingerprint collation sensor 2202, an A / D converter 2204, a fingerprint collation LSI 2206, a PKI engine 2208 (game data generation means), a flash memory 2210, a program ROM and a RAM 22.
12, a CPU 2214, a USB controller 2216, and the like. In addition, the fingerprint verification LSI 220
6, PKI engine 2208, flash memory 221
0, program ROM and RAM 2212, CPU
The 2214 and the USB controller 2216 are commonly connected by a bus. The fingerprint matching sensor 2202
Is for reading a fingerprint from a fingertip placed on the fingerprint matching sensor 2202 and outputting fingerprint data (grayscale data). The A / D converter 2204
Is for converting the fingerprint data from an analog signal to a digital signal. The fingerprint matching LSI 2206
Is to generate template data of a characteristic portion from the digital data and store the template data in the flash memory 2210. The PKI engine 2208 generates a public key and a secret key necessary for performing communication based on the public key encryption method, and performs encryption / decryption based on the public key and the secret key. The generation of the public key and the secret key will be described later. The flash memory 2210 is configured to store the template data and chip data given to a player in exchange for a bet amount. The program ROM and RAM 2212 store the control program for the personal authentication device 20. The USB controller 2216 is an interface for transmitting / receiving information to / from the client device 20. The C
The PU 2214 controls each of the units based on the control program.

Next, the operation of the personal authentication device 22 will be described. First, a registration operation for registering a player using the client device 20 will be described. The player places his finger on the fingerprint collation sensor 2202 of the personal identification device 22. As a result, the fingerprint data is
The fingerprint verification LSI via the D / D converter 2204
2206, the template data is stored in the flash memory 2210. Thereby, the fingerprint data of the player is registered. Next, the authentication operation for authenticating the player will be described. The player places his finger on the fingerprint collation sensor 2202 of the personal identification device 22. As a result, the fingerprint data is read by the fingerprint matching LSI 2206 via the A / D converter 2204 and matched with the template data stored in the flash memory 2210. The result is C
The PU 2214 is notified. If the verification result is acceptable, the CPU 2214 notifies the client device 20 that the authentication has been normally performed. As a result, the client device 20 can be used. On the other hand, if the verification result is unacceptable, the client device 20 is notified that the authentication has not been performed. Thereby, the client device 20
Use becomes impossible.

Next, the operation of generating the public key and the secret key based on the RAS method by the PKI engine 2208 will be described. A command instructing generation of a public key and a secret key is transmitted from the client device 20 to the personal authentication device 22. The PKI engine 2208 generates a random number according to the command. The generation of the random number is repeated until a non-prime number is obtained. When a non-prime random number is obtained, the PKI engine 2208 sets this random number as a composite number n (corresponding to the authentication information in the claims) as shown in Expression (1), and the composite number n is the product thereof. It decomposes into two prime numbers (corresponding to the seed information in the claims), that is, a first prime number p and a second prime number q. The composite number n is also called a modulus. In other words, the composite number n is
It is irreversibly and uniquely generated based on the first prime number p and the second prime number q. n = p · q (1) Next, y is obtained based on the equation (2). (P-1). (Q-1) + 1 = y (2) Next, the public key e and the secret key d, which are products of y, are calculated based on the equation (3). e · d = y (3) For example, if the composite number n = 33, the formulas (1), (2), and (3) are as follows. 33 = 3.11 (1) (3-1) * (11-1) + 1 = 21 (2) 3.7 = 21 (3) That is, composite number n: 33 public key e: 3 private key d: 7 Becomes

Next, the operation when playing the game is shown in FIG.
This will be described with reference to the flowchart in FIG. In the first embodiment, a case where the game is craps will be described. The player who plays the game includes one parent player who plays a role of controlling the progress of the game, and one or more child players who participate in the game according to the progress of the parent player. In the present embodiment, it is assumed that the parent player operates the server device 10 via the client device 10 and the child player operates the client device 20.

First, each child player goes to a registration place of a service providing company that provides gambling, performs his / her age verification, registers fingerprint data in the personal authentication device 22, and performs personal registration (step S10). ). Next, each child player pays a bet amount, so that the chip data corresponding to the bet amount is transferred to the flash memory 2210.
To save (step S12). The chip data is digitally signed by the service provider company. Then, the individual authentication device 22 is lent to each child player (step S14). Each child player connects the rented personal authentication device 22 to the client device 20 and performs a personal authentication operation (step S16). By performing the personal authentication operation normally,
Ready to join the game.

By completing the game participation preparation,
As shown in FIG. 6, the display means 2 of the client device 20.
On the screen of 006, there is a menu G for selecting a game.
1 is displayed (step S18). By selecting the craps and pressing the execute key of the keyboard of the input means 2008 of the client device 20, a screen for performing the craps is displayed as shown in FIG. 7 (step S2).
0). An image G2 of a table for craps (detailed screen contents are omitted) is displayed on the screen, and the composite number n (is transmitted from the client devices 20 of all child players participating in the game. n1-n
x), the first prime number p (p1 to px), the second prime number q (q1 to q1
qx) is displayed. Also, a dice button B1 for rolling a die, an n send button B2 for sending a composite number n, a p send button B3 for sending a first prime p, and a q send button for sending a second prime q. B4 is also displayed. These buttons are set to be inoperable in the initial state. It should be noted that each button is displayed in a different color depending on whether it is in an operable state (ready state), for example, green in an operable state and red in an inoperable state. Is configured to be.

The child player bets chips while looking at the image on the table (step S22). That is, by operating the mouse of the input means 2008, the image chip is dragged and dropped to a desired position on the image table. This image is displayed on the monitor device of each client in real time. Betting the chips means that the betting data corresponding to the betting amount is bitted, that is, presented to the server device 10 by each of the client devices 20. It should be noted that operations such as placing such a chip on a table and displays corresponding to the operations are displayed on the server device 10.
Under the control of the game means 1010 and the server control means 1004, information is mutually communicated between the server device 10 and each client device 20 via the Internet 30.

When all the child players have finished betting chips,
The parent player performs an operation on the input means 1008 of the client device 20 of the parent player to put all the client devices 20 of the child player into the dice-ready state. This operation information is transmitted to the server device 10 via the Internet 30, and the server control unit 1004 that recognizes the operation information sends an instruction to the dice ready state from the server control unit 1004 to the server communication unit 1002. It is transmitted to each client device 20 of the child player through the client control means 1004 of each client device 20 changes the color of the dice button B1 of the display means 2006 from red indicating inoperable to green indicating possible (step). S24). Accordingly
When each child player clicks the dice button B1, the client control means 20 of each client device 20
04 instructs the personal authentication device 22 to generate a public key and a private key (step S26). The personal authentication device 22
Is the composite number n, the first prime number p, and
The second prime number q is generated and given to the client control means 2004 (step S28: seed information generation step, authentication information generation step). Client control means 2004
First makes the n transmission button B2 operable. For example, the color of this button is changed from red to green (step S30). When each child player operates the n transmission button B2 to transmit all the composite numbers n to the server device 10, the game means 1010 of the server device 10 transmits all the composite numbers n to each client device. Send to 20. As a result, each client device 2
All the composite numbers n are displayed on the display means 2006 of 0 (step S32: authentication information transmitting step, authentication information receiving step). Therefore, each child player can visually recognize the combined number n of itself and the combined number n of other child players.

Next, after all the composite numbers n have been transmitted to each client device 20, the game means 1010 of the server device 10 operates a button for transmitting the first prime number p and the second prime number q. An instruction to enable the state is transmitted to each client device 20. Accordingly, the client control means 2004 causes the p send button B3, q
The send button B4 is made operable. For example, the color of these buttons B3 and B4 is changed from red to green (step S34). Each child player has p send button B3
By operating both the q and q send buttons B4, the first prime number p and the second prime number q in all the client devices 20 are transmitted as game data to the server device 10 (step S36). Next, the game means 1010 of the server device 10 causes all the first prime numbers p and the second prime numbers
The prime number q is transmitted to each client device 20. As a result, all the first prime numbers p and the second prime numbers q are displayed on the display means 2006 of each client device 20 (step S38: seed information transmitting step). Therefore, each child player can visually recognize his / her first prime number p and second prime number q and the other child players' first prime number p and second prime number q. Then, in this step S38,
Each of the client control means 2004 has all the composite numbers n received by the client communication means 2002.
And all the first and second prime numbers p and q received by the client communication means 2002 are verified, that is, compared to determine whether or not the first and second prime numbers p and q have been tampered with ( Step S39). If it is determined from this confirmation result that there is no tampering, the process proceeds to the next step, and if tampering is found, the fact is transmitted to the server device 10, and the server device 10 instructs each client device 20 to stop the game. Yes (step S41).

Then, the game means 1010 of the server device 10 determines the eye of the two dice (any number from 1 to 6) based on these received prime numbers. In the present embodiment, the eyes of the two dice correspond to the combined information, and the operation of determining the eyes of the two dice corresponds to the combined information generating step. That is, the first prime number p received by the game means 1010 of the server device 10
Is p1 to px, and the second prime numbers are q1 to qx.
First, a predetermined bit is deleted from the LSB (least significant bit) side of the first and second prime numbers. This is because the prime numbers are always composed of odd numbers. Then, the exclusive OR p0 of each of the first prime numbers p1 to px (after the deletion of a predetermined bit) is calculated as in the equation (4). p0 = p1 * p2 * p3 * ... * px (4) (In this specification, * represents an exclusive OR operation symbol.) Next, p0 is divided by 6 and the remainder is divided into The die roll is the die roll (but the remainder 0 is the die roll roll). Then, the game means 101 of the server device 10
0 transmits the data of the eye of the first die to each client device 20,
The first die roll is displayed on the display means 2006 (step S40).

Similarly, each second prime number q1 is expressed by the equation (5).
Calculate the exclusive OR q0 of qq (after deletion of predetermined bits). q0 = q1 * q2 * q3 * ... * qx (5) Next, q0 is divided by 6 and the remainder is taken as the second die roll (however, the remainder 0 is the die roll is 6). Then, the game means 1010 of the server device 10 transmits the data of the eye of the second die to each client device 20, thereby displaying the eye of the second dice on the display means 2006 of each client device 20 ( Step S42).

In this way, when the two die rolls are determined and the craps win or loss is determined ("Y" in step S44), processing such as wager payout is executed (step S46). If the win or loss of the craps is not determined (“N” in step S44), the process returns to step S34. Whether or not to continue the game is selected (step S48), and if the game is to be continued ("Y" in step S48), step S48 is performed.
If the process proceeds to step 22 and is not to be continued (“N” in step S48), the process ends.

In the present embodiment, the server communication means 1002 constitutes the authentication information receiving means and the authentication information transmitting means of the claims. Also,
The client communication unit 2002 constitutes the seed information transmission unit in the claims. Also, the PK
The I engine 2208 constitutes the seed information generation means and the authentication information generation means in the claims. Further, the game means 1010 of the server device 10 constitutes a combined information generating means in the claims.

As described above, according to the first embodiment, after the composite number n is displayed by the display means 2006 of each of the client devices 20, the first and second prime numbers p and q are displayed. Both are transmitted to the server device 10 as the game data. The first and second prime numbers p and q
If there is a fraudulent act such as tampering with the above, the relation between the composite number n and the first and second prime numbers p and q is inconsistent, that is, n = p · q is not established, and thereby the fraudulent act It will be possible to discover.

Further, since all of the first prime number p and the second prime number q generated by the personal authentication device 22 of each client device 20 are used in the process of calculation for determining the roll of the dice, it is possible for each player. On the other hand, fairness can be maintained. In addition, by authenticating the player using the personal authentication device 22, it is possible to easily limit the age of the player who gambles.

In the operations of steps S40 and S42, it is preferable to display an image showing how the dice roll on the display means 2006 of each client device 20 in order to improve the visual effect. In the first embodiment, the first and second prime numbers p based on the composite number n,
Generation of q is performed by the PKI engine 2208, but this operation may be performed by the CPU 2214 or the client control unit 2004.
Further, in the above description, all the first and second prime numbers p and q are used, but the die roll may be determined by 8 bits from the most significant bit of these. By doing so, there is an advantage that it is possible to obtain the number of dies obtained by rolling the dice a plurality of times only by generating the composite number n once.

In the first embodiment, the seed information is sent to the information management device after the authentication information is received from the information management device. Is tampered with, the injustice can be found using the authentication information received by the information processing device. Further, even if one of the information processing apparatuses changes the seed information transmitted by itself based on the information transmitted from another information processing apparatus, the fraud can be detected. Therefore, each information processing device does not need to send seed information at the same time,
There is an advantage that it can be transmitted to the information management device at different times.

Next, a second embodiment of the present invention will be described. In the second embodiment, the game will be described as roulette. The second embodiment is different from the first embodiment in that each client device 2
The screen displayed on the display means 2006 of 0, the first,
It is the content of the calculation for determining the eye that appears in the roulette using the second prime numbers p and q. FIG. 8 is an explanatory diagram of a screen displayed on the display unit 2006 of the client device 20 when the roulette wheel is selected. As shown in FIG. 8, an image of a table for roulette is displayed on the screen of the display unit 2006, and the composite number n transmitted from the client devices 20 of all child players participating in the game. (N1 to nx), the first prime number p (p1 to px),
The second prime number q (q1 to qx) is displayed. In addition, the ready button B1 operated by each child player
1, n send button B2 for sending the composite number n, first
P send button B3 for sending the prime p, the second prime q
The q transmission button B4 for transmitting is also displayed.
These buttons are set to be inoperable in the initial state. In addition, each button is displayed in a different color depending on whether it is in an operable state (ready state), for example, green in an operable state,
It is configured to turn red in the inoperable state.

FIG. 9 is a flowchart showing the operation of the second embodiment. Note that, in FIG. 9, steps having the same operations as those in FIG. 5 are denoted by the same step numbers, and description thereof will be omitted. Steps S10 to S18 are the same as those in the first embodiment. By selecting a roulette wheel in step S20, a roulette screen G3 (detailed screen contents are omitted) shown in FIG. 8 is displayed. The child player bets chips while looking at the image on the table (step S22). That is, by operating the mouse of the input means 2008, the image chip is dragged and dropped to a desired position on the image table. This image is displayed on the monitor device of each client in real time. Also in the present embodiment, betting the chips means that the betting data corresponding to the betting amount is bitted, that is, presented to the server device 10 by each of the client devices 20.

When all the child players have finished betting chips,
The parent player operates the input means 100 of the client device 20 of the parent player to perform an operation for setting all the ready buttons B11 of the client device 20 of the child player to the ready state.
Repeat for 8. This operation information is available on the Internet 3
An instruction to put the ready button B11 into a ready state is sent to the server device 10 via the server control unit 1004 or the server communication unit 1002. The color is transmitted to the client device 20, and the client control means 1004 of each client device 20 changes the color of the ready button B11 of the display means 2006 from red indicating inoperability to green indicating enable (step S12).
4). In response, each child player has a ready button B1.
When 1 is clicked, the client control means 2004 of each client device 20 causes the individual authentication device 22 to operate.
To generate a public key and a private key (step S12)
6). Hereinafter, the operation of generating and displaying the composite number n, the first prime number p, and the second prime number q by the personal authentication device 22 is the same as steps S28 to S41 in FIG.

The calculation for determining the roulette eyes is performed in the following procedure. That is, the first prime number p received by the game means 1010 of the server device 10 is p1.
~ Px, and the second prime numbers are q1 to qx. Next, the exclusive OR pq0 of each of the first prime numbers p1 to px and the second prime numbers q1 to qx is calculated as in Expression (6). pq0 = p1 * p2 * p3 * ... * px * q1 * q2 * q3 * ... * qx (6) Next, pq0 is divided by 38 and the remainder (1 to 36) is taken as the roulette eye (composite). Information generation step). However, the remainder 0 is 0 for the roulette and the remainder 37 is 00 for the roulette. In the present embodiment, the roulette eyes correspond to the combined information, and the operation for determining the roulette eyes corresponds to the combined information generating step. Then, the game means 1010 of the server device 10 transmits the roulette data to each of the client devices 20, thereby displaying the display device 2006 of each of the client devices 20.
The roulette eyes are displayed on the screen (step S140).

By determining the roulette eyes in this way, the winning or losing of the roulette is determined (step S142).
If "Y"), a process for paying a stake is executed (step S144). Next, it is selected whether or not to continue the game (step S146). If the game is to be continued ("Y" in step S46), the process proceeds to step S22, and if not ("N" in step S46), the game is continued. finish.

As described above, according to the second embodiment, after the composite number n is displayed by the display means 2006 of each of the client devices 20, the first and second prime numbers p and q are displayed. Both are transmitted to the server device 10 as the game data. The first and second prime numbers p and q
If there is a fraudulent act such as tampering with the above, the relation between the composite number n and the first and second prime numbers p and q is inconsistent, that is, n = p · q is not established, and thereby the fraudulent act It will be possible to discover.

In addition, in the process of calculation for determining the roulette eyes, the personal authentication device 22 of each client device 20.
Since all of the first prime number p and the second prime number q generated in 1 are used, fairness can be maintained for each player. Also, by authenticating the player using the personal authentication device 22, it is possible to easily restrict the age of the player who gambles, as in the first embodiment.

In the operation of step S140,
Displaying an image showing the rotation of the roulette on the display means 2006 of each client device 20 is preferable for improving the visual effect. Further, in the above description, all the first and second prime numbers p and q are used, but the roulette eye may be determined by 8 bits from the most significant bit of these. By doing so, there is an advantage that the number of roulettes obtained by rotating the roulette a plurality of times can be obtained only by generating the composite number n once.

Also in the second embodiment,
Similar to the first embodiment, when the seed information is tampered with, the fraud can be found. Therefore, it is not necessary for each information processing device to send the seed information at the same time, and there is an advantage that it can be sent to the information management device at different times.

Next, a third embodiment of the communication game system and method of the present invention will be described. In the third embodiment, it is assumed that the game is blackjack, which is one of the card games. The third embodiment is different from the first embodiment in that a screen displayed on the display unit 2006 of each client device 20 is
It is the content of calculation for determining the number of the card using the first and second prime numbers p and q. FIG. 10 shows the display means 200 of the client device 20 when blackjack is selected.
6 is an explanatory diagram of a screen displayed in FIG. As shown in FIG. 10, an image of a table for blackjack is displayed on the screen of the display means 2006, and the client devices 2 of all the child players participating in the game are displayed.
The composite number n (n1 to nx) transmitted from 0, the first prime number p (p1 to px), and the second prime number q (q1 to qx) are displayed. In addition, a start button B21 operated by each child player and n for transmitting the composite number n
Send button B2, p send button B3 for sending the first prime p, q send button B for sending the second prime q
4 is also displayed. These buttons are set to be inoperable in the initial state. It should be noted that each button is displayed in a different color depending on whether it is in an operable state (ready state), for example, green in an operable state and red in an inoperable state. Is configured to be.

FIG. 11 is a flow chart showing the operation of the third embodiment. In FIG. 11, steps having the same operations as those in FIG. 5 are designated by the same step numbers, and the description thereof will be omitted. Steps S10 to S18 are the same as those in the first embodiment. By selecting blackjack in step S20, a blackjack screen G4 (detailed screen contents are omitted) shown in FIG. 10 is displayed. The child player bets chips while looking at the image on the table (step S22). That is, by operating the mouse of the input means 2008, the image chip is dragged and dropped to a desired position on the image table. This image is displayed on the monitor device of each client in real time. Betting the chips means that the betting data corresponding to the betting amount is bitted, that is, presented to the server device 10 by each of the client devices 20.

When all the child players have finished betting chips,
The parent player performs an operation for setting all the start buttons B21 of the client device 20 of the child player to the input means 1008 of the client device 20 of the parent player. This operation information is transmitted to the server device 10 via the Internet 30 and is recognized by the server control means 1004 which recognizes the operation information.
An instruction to set the start button B21 to the ready state is issued from the server control means 1004 to the server communication means 100.
2 to each client device 20 of the child player, and the client control means 1004 of each client device 20 sends the start button B of the display means 2006.
The color of No. 21 is changed from red indicating inoperability to green indicating possibility (step S224). In response to this, when each child player clicks the ready button B11, the client control means 2004 of each of the client devices 20 described above.
Instructs the personal authentication device 22 to generate a public key and a private key (step S226). Hereinafter, the operation of generating the composite number n, the first prime number p, and the second prime number q and displaying the composite number n by the personal authentication device 22 is performed in step S in FIG.
28 to S32. In this example, the number of digits of the first prime number p and the second prime number q is 512 bits.

Next, after all the composite numbers n have been transmitted to each client device 20, the game means 1010 of the server device 10 operates a button for transmitting the first prime number p and the second prime number q. An instruction to enable the state is transmitted to each client device 20. Accordingly, the client control means 2004 causes the p send button B3, q
The send button B4 is made operable. For example, the color of these buttons B3 and B4 is changed from red to green (step S234). Each child player has p send button B
By operating both 3 and the q send button B4, the first prime number p and the second prime number q in all the client devices 20 are transmitted to the server device 10 (step S23).
6). In this example, four sets of cards are used. Therefore, the total number of cards is 52 × 4 = 208, and the number required to distinguish the design and the number of each card may be 208 or more. Therefore, the number of bits of the first prime number p and the second prime number q required for one play is 8 bits (expressed as a decimal number, a number from 0 to 255). Therefore, the first and second prime numbers p and q are transmitted by 8 bits from the most significant bit for each determination of one card (for each play). The least significant bit (LSB) of the first and second prime numbers p and q must be unused.
The reason is that the generated 512-bit first and second prime numbers p and q are odd numbers, and the least significant bit (LSB) is always 1. Therefore, if the transmission is performed with the least significant bit included, it will be described later. This is to avoid the inconvenience that the calculation result for determining the number of cards to be played is determined according to the number of child players. The processing method of removing the predetermined bits from the least significant bit side of the first and second prime numbers p and q is arbitrary, but for example, of the 512 bits forming the first and second prime numbers p and q, the lower half bit is May be excluded.

Next, the game means 1010 of the server device 10 transmits the 8-bit first prime number p and the second prime number q to each client device 20. As a result, all the first prime numbers p and the second prime numbers q are displayed on the display means 2006 of each client device 20 (step S238). Therefore, each child player can visually recognize his / her first prime number p and second prime number q and the other child players' first prime number p and second prime number q. Then, in this step S238, each of the client control means 2004 has the client communication means 20.
02. All the composite numbers n received in 02 and all the first and second prime numbers p and q received in the client communication unit 2002 are verified, that is, the first and second prime numbers p and q are compared. It is determined whether it has been tampered with (step S239). If it is determined from this confirmation result that there is no tampering, the process proceeds to the next step, and if tampering is found, the fact is transmitted to the server device 10, and the server device 10 instructs each client device 20 to stop the game. Yes (step S241).

Then, the game means 1010 of the server device 10 determines the number of the card based on these received prime numbers. In the present embodiment, the number on the card corresponds to the combined information, and the operation of determining the number on the card corresponds to the combined information generating step. The calculation for determining the card number is performed in the following procedure. That is, it is assumed that the first prime number p received by the game means 1010 of the server device 10 is p1 to px and the second prime number is q1 to qx. As in equation (7), each of the first prime numbers p1 to px
The exclusive OR p0 (after deleting the predetermined bit) is calculated. p0 = p1 * p2 * p3 * ... * px (7) Next, p0 is divided by 208 and the number of cards or the pattern is specified by the remainder. Similarly, the exclusive OR q0 of each of the second prime numbers q1 to qx (after the deletion of a predetermined bit) is calculated as in the equation (8). q0 = q1 * q2 * q3 * ... * qx (8) Next, q0 is divided by 208, and the number of cards or the design is specified by the remainder. Therefore, the parent player deals a predetermined number of cards specified by the numbers of exclusive OR p0 and q0 to each operator (client device 20) based on the blackjack rule. Since this rule itself is not directly related to the gist of the present invention, its explanation is omitted. That is, the data corresponding to the numbers and patterns on the card are transmitted from the game means 1010 of the server device 10 to each client device 20. Based on the data, the image (including the pattern and the number) of the card dealt with is displayed on the display means 2006 of each client device 20 (step S240).

When the winning or losing of blackjack is determined by determining the pattern and the number of the card in this way ("Y" in step S242), processing such as payout of bet is executed (step S244). If the win / loss of the blackjack is not determined (“N” in step S242), the process returns to step S234. A selection is made as to whether or not to continue the game (step S246), and in the case of continuing (step S2)
If “Y” in 46), the process proceeds to step S22, and if not continued (“N” in step S246), the process ends.

As described above, according to the third embodiment, after the composite number n is displayed by the display means 2006 of each of the client devices 20, the first and second prime numbers p and q are displayed. Both are transmitted to the server device 10 as the game data. The first and second prime numbers p and q
If there is a fraudulent act such as tampering with the above, the relation between the composite number n and the first and second prime numbers p and q is inconsistent, that is, n = p · q is not established, and thereby the fraudulent act It will be possible to discover.

Further, since all of the first prime number p and the second prime number q generated by the personal authentication device 22 of each client device 20 are used in the process of calculation for determining the pattern and number of the card, Fairness can be maintained for child players. Also, by authenticating the child player using the personal authentication device 22, the restriction (age restriction) of the child player performing the gambling can be easily performed, as in the first embodiment.

In the operation of step S240,
It is preferable to display an image showing how the cards are shuffled on the display means 2006 of each client device 20 in order to improve the visual effect.

Also in the third embodiment,
Similar to the first embodiment, when the seed information is tampered with, the fraud can be found. Therefore, it is not necessary for each information processing device to send the seed information at the same time, and there is an advantage that it can be sent to the information management device at different times.

The present invention is not limited to craps, roulette and blackjack. For example, it can be applied to poker using cards.
Further, the present invention is not limited to a game using dice or cards, but can be applied to any game that can use the first and second prime numbers p and q as game data. Further, as the bit lengths of the first and second prime numbers p and q are made longer, it becomes more difficult to calculate the first and second prime numbers from the composite number n, which is advantageous in preventing fraud. Is. For example, if the bit length is set to 500 bits or more, it can be said that the decoding of the first and second prime numbers is practically impossible. In addition, the communication line connecting the server device 10 and the client device 20 has a VPN (V
It is preferable that the encrypted private network is used to guarantee encrypted communication. Further, it is optional to use a communication line other than the Internet as the communication line.

In the games described in the first to third embodiments, the parent player exclusively controls the progress of the game and cannot bet on his own. However, it is needless to say that the present invention can be similarly applied to a game in which a parent player can place a bet like a child player.

When each client device 10 sends the composite number to the server device 10, a digital signature with a time stamp of each player is added to the composite number. It is possible to specify the transmission source and the transmission date and time. In this case, it is possible to prevent the transmission of the composite number itself from being denied and to prevent the transmission date and time of the transmitted composite number from being false, which is advantageous in suppressing fraud. Also,
When each of the client devices 10 transmits the betting data to the server device 10, the betting data may be digitally signed by each player, and the betting data may be time-stamped by the server device. For example, it is possible to specify the transmission source and transmission date and time of the betting data. In this case, it is possible to prevent denying that the betting data has been transmitted, or to prevent the transmission date and time of the transmitted betting data from being false.
It is advantageous in suppressing fraud.

Next, a fourth embodiment will be described. The fourth embodiment differs from the first to third embodiments in the game data generation operation. Similar to the fourth embodiment, the client device 20 sends a command to the personal authentication device 22 to generate a public key and a secret key. The PKI engine 2208 (game data generation means) generates an n-bit random number M (corresponding to seed information in claims) according to the command. In the fourth embodiment, the random number M may be a prime number or a non-prime number. M = a ₁ a ₂ a ₃ a ₄ a ₅ a ₆ a ₇ a ₈ ...... a _n (9) (a _{1 to} a _n indicate each bit) The PKI engine 2208 receives the random number M. As shown in Expression (10), the random number M is input to the hash function to obtain hash data H (corresponding to the authentication information in the claims). H = Hash (M) (10) This hash data H cannot be obtained by back-calculating the random number M from the data, and is composed of a number of bits smaller than the number of bits of the random number M. is there. In other words, the hash data H is irreversibly and uniquely generated based on the random number M.
Then, a digital signature with a time stamp of each player is applied to the hash data H.

Next, a craps game using the above-described game data generation method will be described with reference to the flowchart of FIG. Further, in FIG. 12, the same steps as those in the flowchart of FIG. 5 are designated by the same step numbers, and the description thereof will be omitted. The configuration of the communication game system in the fourth embodiment is the same as that in the first embodiment, and therefore, in the following operation, FIG.
The description will be made with reference to FIG.

First, since steps S10 to S18 are the same as those in the flowchart of FIG. 5, the description thereof will be omitted. As shown in FIG. 13, in step S20, an image G2 of a table for performing craps (detailed screen contents are omitted) is displayed on the screen, and clients of all child players participating in the game are displayed. The hash data H (H1 to H
x), game data m1 (m1 (1) to m1 (x)),
The game data m2 (m2 (1) to m2 (x)) is displayed. Further, a dice button B1 for rolling dice, an H send button B21 for sending the hash data H, and m1, m2 send buttons B31, B41 for sending the game data m1, m2 are also displayed. These buttons are set to be inoperable in the initial state. It should be noted that each button is displayed in a different color depending on whether it is in an operable state (ready state), for example, green in an operable state and red in an inoperable state. Is configured to be. Hereinafter, steps S22 and S24 are the same operations as in the first embodiment.

When the dice button is operated in step S26, the client control means 22 of the client device 20 generates a random number M according to the operation described above (step S282: seed information generating step), and the hash data of this random number M is generated. H is generated (step S284: authentication information generation step). Furthermore, the random number M is divided by a predetermined number of bits (for example, 8 bits), and the game data m (m
1, m2, m3, ...) are generated (step S28).
6). In the present embodiment, the seed information in the claims is constituted by the game data m. As described above, if M = a ₁ a ₂ a ₃ a ₄ a ₅ a ₆ a ₇ a ₈ ... a _n (9), m1, m2, and m3 are expressed by the following equations (11) and (12). , (13), and so on. m1 = a ₁ a ₂ a ₃ a ₄ a ₅ a ₆ a ₇ a ₈ (11) m2 = a ₉ a ₁₀ a ₁₁ a ₁₂ a ₁₃ a ₁₄ a ₁₅ (12) m3 = a ₁₆ a ₁₇ a ₁₈ a ₁₉ a ₂₀ a ₂₁ a ₂₂ a ₂₃ (13)

Then, the client control means 200
In the No. 4, first, the H transmission button B21 is made operable. For example, the color of this button is changed from red to green (step S302). When each child player operates the H transmission button B2 to transmit all the hash data H to the server device 10, the server device 1
The game means 1010 of 0 transmits the hash data H to each client device 20. As a result, all the hash data H are displayed on the display means 2006 of each client device 20 (step S322: authentication information transmitting step, authentication information receiving step). Therefore,
Each child player can visually recognize his own hash data H and the hash data H of another child player.

Next, after all the hash data H have been transmitted to each client device 20, the server device 1
The game means 1010 of 0 is game data m1 and m2.
An instruction to make the button for transmitting the message operable is transmitted to each client device 20. This allows
The client control means 2004 uses the m1, m2
The send buttons B31 and B41 are made operable. For example, the color of the m1 and m2 send buttons B31 and B41 is changed from red to green (step S342). Each child player has an m1 send button B31 and an m2 send button B4.
By operating both of the above, the game data m1 (1) in all the client devices 20 is stored in the server device 10.
~ M1 (x) and m2 (1) to m2 (x) are transmitted (step S362). Next, the game means 1010 of the server device 10 causes all the client devices 2
0 game data m1 (1) to m1 (x) and m
2 (1) to m2 (x) are transmitted to each client device 20. As a result, the game data in all the client devices 20 is displayed on the display means 2006 of each client device 20 (step S382: seed information transmitting step). Therefore, each child player can visually recognize his / her own game data m1, m2 and the other child player's game data m1, m2. And
In step S382, each client control unit 2004 has the client communication unit 2002.
All the hash data H received in step S1 and all the game data m1 and m2 received in the client communication unit 2002 are verified, that is, compared to determine whether the game data m1 and m2 have been tampered with. The determination is made (step S384). If it is determined from this confirmation result that there is no tampering, the process proceeds to the next step, and if tampering is found, the fact is transmitted to the server device 10, and the server device 10 instructs each client device 20 to stop the game. (Step S386).

Then, the game means 1010 of the server device 10 determines the two die rolls (any number from 1 to 6) based on these received game data. In the present embodiment, the eyes of the two dice correspond to the combined information, and the operation of determining the eyes of the two dice corresponds to the combined information generating step. That is, it is assumed that the game data m1 received by the game means 1010 of the server device 10 is m1 (1) to m1 (x). Next, the exclusive OR m1 (0) of each game data m1 is calculated as shown in Expression (14). m1 (0) = m1 (1) * m1 (2) * m1 (3) * …… * m1 (x) (14) Next, m1 (0) is divided by 6 and the remainder is divided by the first die. Make a roll (note that the remainder 0 is a die roll of 6).
Then, the game means 1010 of the server device 10
The data of the eyes of the first die is set to each client device 20.
To display the first die roll on the display means 2006 of each client device 20 (step S40).

Similarly, the exclusive OR m2 (0) of each of the game data m2 (1) to m2 (x) (after deletion of a predetermined bit) is calculated as in the equation (5). m2 (0) = m2 (1) * m2 (2) * m2 (3) * ... * m2 (x) (15) Next, m2 (0) is divided by 6 and the remainder is divided by the second die. Make a die (however, if the remainder is 0, the die roll is 6). Then, the game means 101 of the server device 10
0 transmits the data of the second die to each client device 20,
The second die eye is displayed on the display means 2006 (step S42).

By determining the two die rolls in this way, the win or loss of the craps is determined (step S44).
, "Y"), and processing such as stake payout is executed (step S46). If the win or loss of the craps is not determined (“N” in step S44), the process returns to step S342. Select whether or not to continue the game (step S48),
When continuing (“Y” in step S48), the process proceeds to step S22, and when not continuing (“N” in step S48), ends.

As described above, according to the fourth embodiment, after the hash data H is displayed by the display means 2006 of each of the client devices 20, both of the game data m1 and m2 are displayed. It is transmitted to the server device 10 as game data. If there is an illegal act such as tampering with the game data m1, m2, the hash data H and the game data m1,
The relationship with m2 becomes inconsistent, and it becomes possible to detect fraud. Further, in the fourth embodiment, as compared with the first to third embodiments, a process of selecting a prime number when generating game data from the random number M is not necessary, and therefore this process is required. The time can be shortened, which is advantageous in speeding up the process. Also, this 4th
Also in the above embodiment, the longer the bit length of the random number M, the more difficult it is to calculate the game data from the hash data, and if the bit length is 500 bits or more, the game data is effectively It can be said that is impossible to calculate.

Further, by applying the digital signature with the time stamp to the hash data H as described above, it becomes possible to specify the transmission source and transmission date and time of the hash data H. Therefore, it is possible to prevent denying that the certain hash data H has been transmitted, or to falsify the transmission date and time of the transmitted hash data H, which is advantageous in suppressing fraud. Also in the fourth embodiment, each of the client devices 10 sends the betting data to the server device 10.
When transmitting to, the bet data is digitally signed by each player, and the bet data is time-stamped by the server device.
It is possible to specify the transmission source and transmission date and time of the betting data. In this case, it is possible to prevent denying that the betting data has been transmitted and false the transmission date and time of the transmitted betting data, which is advantageous in suppressing fraud.

In addition, since all the game data m1 and m2 generated by the individual authentication device 22 of each client device 20 are used in the process of calculation for determining the roll of the dice, fairness is given to each player. You can keep your sex.
In addition, by authenticating the player using the personal authentication device 22, it is possible to easily limit the age of the player who gambles.

Further, in the operations of steps S40 and S42, it is preferable to display an image showing how the dice roll on the display means 2006 of each client device 20 in order to improve the visual effect.

In this example, the first two pieces of data are divided into predetermined bits from the most significant bit of the random number M to generate the game data m1 and m2, and these are used as data for playing one game. Used as. However, by dividing the random number M from the most significant bit by a predetermined bit, the data m3, m4, which follows the m1, m2,
.. may be used as the die roll in the second and subsequent games, that is, in the second and subsequent games.

In the fourth embodiment, the case where the present invention is applied to craps, which is a game in which dice rolls are 1 to 6, has been described. However, the range of numerical values required as game data is changed. Thus, like the second and third embodiments, it can be widely applied to roulette, blackjack, and other games. That is, if the range of numerical values required for game data is 1 to k, the value of the remainder obtained by dividing the exclusive OR of the game data by k is 0 to (k-1). Therefore, the value of k may be set arbitrarily. In addition, the random number M is
It is irrelevant to the type of game that a plurality of data obtained by dividing the most significant bit from each of the predetermined bits can be used for the second and subsequent games. For example, if the game uses cards, each of the data is used to specify the number of cards and marks in the second and subsequent games, and if the game is roulette, each of the data is 2
It can be used to identify the eyes of the roulette wheel after the first time.

In the fourth embodiment, the random number M
Although the PKI engine 2208 generated the hash data H based on the above and added the digital signature with the time stamp to the hash data H, these two operations may be performed by the CPU 2214 or the client control means 2004. Absent.

Also in the fourth embodiment,
Similar to the first embodiment, when the seed information is tampered with, the fraud can be found. Therefore, it is not necessary for each information processing device to send the seed information at the same time, and there is an advantage that it can be sent to the information management device at different times.

In the first to third embodiments, only the client device 20 of each child player has the first,
It has been described that the game data is configured by generating the second prime number and the composite number, and transmitting the first and second prime numbers and the composite number to the server device 10. However, the client device 20 of the parent player also generates the first and second prime numbers and the composite number corresponding to the parent player and transmits them to the server device 10, and the first and second prime numbers and the composite number corresponding to the parent player. The server device 10 may create the game data based on the number and the first and second prime numbers and the composite number transmitted from the client device 20 of each child player to the server device 10. In this case, even if all the child players other than the parent player collude to generate the first and second prime numbers and the composite number, the first and second prime numbers and the composite number of the parent player constitute the game data. Is used to
The game data becomes random regardless of the intention of the conspiring child player, and it is possible to prevent fraud.

In the fourth embodiment, the game data is formed by generating the random numbers and hash data only in each of the client devices 20 and transmitting the random numbers and hash data to the server device 10. As explained. However, the client device 20 of the parent player also generates a random number and hash data corresponding to the parent player and transmits it to the server device 10, and the random number and hash data corresponding to the parent player and the client device 20 of each child player. The server device 10 may create the game data based on the random number and the hash data transmitted from the server device 10 to the server device 10. In this case, even if all the child players collude and generate random numbers and hash data, the random numbers of the parent player,
Since the hash data is used to form the game data, the game data is random regardless of the intention of the child player who colluded, and it is possible to prevent fraud.

[0088]

As described above, according to the present invention, it is possible to prevent a player who plays a game from cheating.
This is advantageous when playing the game as a gambling game. Further, according to the present invention, it is advantageous for surely discovering that the information transmitted between the plurality of information processing devices and the information management device has been tampered with.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a server device and a client device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing a schematic configuration of a communication game system according to the first embodiment of the present invention.

FIG. 3 is an external view of a personal authentication device.

FIG. 4 is a block diagram showing a configuration of a personal authentication device.

FIG. 5 is a flowchart showing the operation of the first embodiment.

FIG. 6 is an explanatory diagram of a menu screen.

FIG. 7 is an explanatory diagram of a screen of a display unit when craps is selected.

FIG. 8 is an explanatory diagram of a screen of a display unit when roulette is selected.

FIG. 9 is a flowchart showing the operation of the second embodiment.

FIG. 10 is an explanatory diagram of a screen of a display unit when blackjack is selected.

FIG. 11 is a flowchart showing the operation of the third embodiment.

FIG. 12 is a flowchart showing the operation of the fourth embodiment.

FIG. 13 is an explanatory diagram of a screen of a display unit when craps is selected.

[Explanation of symbols]

100 ... communication game system, 10 ... server device,
1002 ... server communication means, 1004 ... server control means, 1006 ... display means, 1010 ... game means, 20 ... client device, 2002 ... client communication means, 2004 ... client control means, 2
006 ... Display means, 22 ... Personal authentication device.

Front page continued (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04L 9/32 H04L 9/00 601F (72) Inventor Yoshihiro Tsukamura 10022 New York, USA Madison Avenue 550 Sony Corporation Ob America F term (reference) 2C001 AA01 AA13 CB07 CB08 DA06 5B085 AE23 AE29 BC02 BE04 BG02 CA02 CA04 CA06 5J104 AA01 AA07 EA01 EA03 JA01 JA21 KA01 KA03 MA01 NA02 NA05 NA12 PA07

Claims (60)

[Claims] 1. A communication game system in which a server and a plurality of clients are connected via a communication line, and information is exchanged between the server and each client, wherein the server is connected via the communication line. A server communication unit for performing communication, a game unit for executing a game, and a server control unit, wherein each client has a display unit for displaying information,
There is a client communication unit that communicates via the communication line, a game data generation unit, and a client control unit, and the game is executed by the game unit of the server from each of the client communication units to the server communication unit. The game data generation means of each client generates the first and second prime numbers and is a non-prime number that is a product of the first and second prime numbers. Is configured to generate a composite number, each of the client communication means is configured to transmit the composite number to the server, and the server control means receives all the composite numbers in the server communication means. , All the composite numbers are transmitted to each client communication means, and each client control means is After all the composite numbers received by the communication means are displayed by the display means, both the first and second prime numbers are transmitted by the client communication means to the server as the game data. A communication game system characterized by the following. 2. A communication game method in a server in which a plurality of clients are communicatively connected via a communication line, wherein the first game is generated based on the first and second prime numbers generated by the client. , A first step of receiving from the client a composite number that is a non-prime number that is the product of the second prime numbers, and that the server receives all the composite numbers sent from the clients To each of the clients, and after displaying all the composite numbers received by each client from the server on the display means of the client, both the first and second prime numbers are used as game data. The third step of receiving from each of the clients as Communication game method characterized by comprising a fourth step of performing a game, a Te. 3. A server connected to a plurality of clients via a communication line, comprising a server communication unit for communicating via the communication line, a game unit for executing a game, and a server control unit. The game means is configured to play a game using the game data transmitted from each of the clients to the server communication means, and the server communication means includes the first and the first generated by the clients. When the server control unit receives all the composite numbers of each client by the server communication unit, the server control unit receives all the composite numbers that are non-prime numbers that are products of two prime numbers. To each of the client communication means, the server communication means is configured to After the number of formed is displayed in the client, server, wherein the configuration is, that to receive the first transmitted, both the second prime number as the game data from the client. 4. Information exchange between the server and a plurality of clients is carried out based on a public key encryption system, and the game data generation means of each of the clients uses a public key and a public key based on the public key encryption system. The game data generating means has a key generating means for generating a secret key, and the game data generating means generates the first and second prime numbers in a process of generating the public key and the secret key by the key generating means of each client. The server according to claim 3, wherein the server is provided. 5. The server control means is configured to cause the server communication means to transmit all of the first and second prime numbers received from the client communication means to each client, and display of each client. The first and second received from the server communication means by means.
4. The server according to claim 3, wherein all prime numbers are displayed. 6. The game progresses when betting data corresponding to a bet amount is bitted, that is, presented to the server by each of the clients, and the server communication means operates by the client. Each client transmits the betting data to the server prior to receiving both the first and second prime numbers from the server, and the server processes the betting data based on the result of the game. The server according to claim 3, wherein the server is configured. 7. The execution of the game by the game means of the server is performed by performing an operation using all of the game data transmitted from the transmission means of each client. Server. 8. The game executed by the game means of the server is a game using dice, and an operation using all of the game data is performed to determine the number of dice rolls. The server according to claim 5, wherein: 9. The game executed by the game means of the server is a game using a card, and an operation using all of the game data is performed to determine a picture and a number of the card. The server according to claim 5, wherein: 10. The game executed by the game means of the server is roulette, and an operation using all of the game data is performed to determine a number determined by roulette. The server according to claim 5, wherein 11. The server according to claim 3, wherein the communication line includes the Internet. 12. The server according to claim 3, wherein a digital signature with a time stamp is given to the composite number when the composite number is generated by the game data generating means. 13. A client connected to a server via a communication line, the client comprising display means for displaying information, client communication means for communicating via the communication line, and game data. The game data generation unit includes a generation unit and a client control unit, and the game data generation unit generates a first and second prime numbers and a composite number that is a non-prime number that is a product of the first and second prime numbers. The client communication unit is configured to send the combined number to the server, and the client control unit is configured to transmit all the combined numbers from all the clients to which the server is connected to the server. When all the composite numbers are transmitted to the client communication means by receiving the number, all the received composite numbers are received by the client communication means. After the composite number is displayed by the display unit, the client communication unit is configured to transmit both the first and second prime numbers to the server as game data. . 14. Information exchange between the server and a plurality of clients is carried out based on a public key encryption system, and the game data generation means of each of the clients uses a public key and a public key based on the public key encryption system. The game data generating means has a key generating means for generating a secret key, and the game data generating means generates the first and second prime numbers in a process of generating the public key and the secret key by the key generating means of each client. 14. The client according to claim 13, wherein the client is provided. 15. The server according to claim 13, wherein the server receives all of the first and second prime numbers received from each of the client communication means and displays them on the display means of each of the clients. Client of. 16. Each of the client control means includes all the composite numbers received by the client communication means,
All the first and second received by the client communication means
14. The client according to claim 13, wherein the client is configured to compare with a prime number to determine whether the first and second prime numbers have been tampered with. 17. The game progresses when betting data corresponding to a bet amount is bitted, that is, presented to the server by each of the clients, and the server communication means causes the client to operate. Each client transmits the betting data to the server prior to receiving both the first and second prime numbers from the server, and the server processes the betting data based on the result of the game. The client according to claim 13, wherein the client is configured. 18. The key generation means of each client comprises:
2. An authentication device for personally authenticating an operator who operates each client.
4. The client described in 4. 19. The client according to claim 18, wherein personal authentication by the authentication device is performed by collating fingerprint data. 20. The client according to claim 13, wherein the communication line includes the Internet. 21. The client according to claim 13, wherein a digital signature with a time stamp is made to the composite number when the composite number is generated by the game data generating means. 22. A program of a server connected to a plurality of clients via a communication line, each of which receives a composite number which is a non-prime number formed by a product of first and second prime numbers generated by each client. A tenth step; an eleventh step of transmitting all the composite numbers to the clients upon receipt of all the composite numbers transmitted from the clients in the tenth step; Displaying all the composite numbers received from the client on the display means of the client and then transmitting both the first and second prime numbers to the server as game data; Causing the server to execute a thirteenth step of playing a game using the transmitted game data. Because server program for. 23. A program of a client connected to a server via a communication line, which is a non-prime composite number that generates first and second prime numbers and is a product of the first and second prime numbers. And a 21st step of transmitting the combined number generated in the 20th step to the server, and 20th step of generating all the clients transmitted from all the clients connected to the server. A twenty-second step of displaying all the composite numbers received by the client from the server on the display unit of the client by transmitting all the composite numbers to the client upon receipt of the composite number; After performing the 22nd step,
A client program for causing the client to execute a twenty-third step of transmitting both the first and second prime numbers as game data to the server. 24. A communication game system in which a server and a plurality of clients are connected via a communication line, and information is exchanged between the server and each client, wherein the server is connected via the communication line. Server communication means for performing communication with each other, game means for executing a game, and server control means, and each of the clients includes display means for displaying information,
Client communication means for communicating via the communication line, random number generating means for generating random numbers, hash data generating means for generating hash data of the random numbers, and game data by dividing the random numbers into predetermined number of bits. The game data is generated by the game means of the server, and the game data transmitted from the client communication means to the server communication means is used to execute the game by the game means of the server. The client communication means is configured to transmit the hash data to the server, the server control means, when the server communication means receives all the hash data, Configured to send to each client communication means, each client The control means is configured to display all the hash data received by the client communication means by the display means, and then cause the client communication means to transmit the game data to the server. Characteristic communication game system. 25. A communication game method for a server in which a plurality of clients are communicably connected via a communication line, the first step of receiving random number hash data generated by the client from the client. A second step in which the server receives all the hash data transmitted from each of the clients, and then transmits all the hash data to each of the clients; and all the hashes received by each of the clients from the server. After displaying the data on the display means of the client, the third step of receiving the game data generated by each client by dividing the random number into a predetermined number of bits, and the game data received from each client. A fourth step of playing the game using Communication game method of server characterized by. 26. A server connected to a plurality of clients via a communication line, the server comprising: a server communication unit for communicating via the communication line; a game unit for executing a game; and a server control. The game means is configured to play a game using the game data transmitted from each of the clients to the server communication means, and the server control means causes each of the clients to generate a random number. When all of the hash data is received by the server communication means, it is configured to send all the hash data to each of the clients, the server communication means, each client, all the hash data received After displaying it, the game data generated by dividing the random number into a predetermined number of bits is stored in the client. It is configured to receive from preparative, and wherein the server. 27. Exchange of information between the server and a plurality of clients is carried out based on a public key encryption system, and the game data generation means of each of the clients uses a public key and a public key based on the public key encryption system. It has a key generation means for generating a secret key, and the random number is generated by the game data generation means in the process of generating the public key and the secret key by the key generation means of each client. 27. The server according to claim 26. 28. The server control means is configured to cause the server communication means to transmit all of the game data received from each of the client communication means to each of the clients, and the display means of each of the clients causes the server control means to transmit the game data. 27. All of the game data received from the server communication means are displayed.
The listed server. 29. The game progresses when betting data corresponding to a bet amount is bitted, that is, presented to the server by each of the clients, and the server communication means causes the client to operate. Each client transmits the bet data to the server prior to receiving the game data from the server, and the server is configured to process the bet data based on the result of the game. 27. The server according to claim 26, wherein: 30. The execution of the game by the game means of the server is performed by performing an operation using all of the game data transmitted from the transmission means of each of the clients. Server. 31. The game executed by the game means of the server is a game using dice, and an operation using all of the game data is performed to determine the number of dice rolls. 31.
The listed server. 32. The game executed by the game means of the server is a game using a card, and an operation using all of the game data is performed to determine a picture and a number of the card. 31. The server according to claim 30, wherein: 33. The game executed by the game means of the server is roulette, and an operation using all of the game data is performed to determine a number determined by roulette. Claim 30
The listed server. 34. The server according to claim 26, wherein the communication line includes the Internet. 35. The server according to claim 25, wherein a digital signature with a time stamp is applied to the hash data when the hash data is generated by the hash data generating means. 36. A client connected to a server via a communication line, the client comprising a display unit for displaying information, a client communication unit for communication via the communication line, and a random number generator. Random number generating means, hash data generating means for generating the hash data of the random number, game data generating means for generating the game data by dividing the random number for each predetermined number of bits, and client control means. The client communication unit is configured to send the hash data to the server, and the client control unit has received all the hash data from all the clients connected to the server by the server. When all the hash data are transmitted to the client communication means with After it displayed by said display means all of the hash data received by client communication means, the client, characterized in that, which is configured to transmit the game data to the server by the client communication means. 37. Exchange of information between the server and a plurality of clients is carried out based on a public key encryption system, and the game data generating means of each of the clients uses a public key and a public key based on the public key encryption system. It has a key generation means for generating a secret key, and the generation of the random number by the game data generation means is performed in the process of generating the public key and the secret key by the key generation means of each client. 37. The client according to claim 36. 38. The client according to claim 36, wherein the server receives all of the game data received from each of the client communication means from the server and displays the data on the display means of each of the clients. 39. The client control means compares all the hash data received by the client communication means with all game data received by the client communication means to tamper with the game data. 37. The client of claim 36, wherein the client is configured to determine whether or not it is. 40. The game progresses when betting data corresponding to a bet amount is bitted, that is, presented to the server by each of the clients, and the server communication means causes the client to operate. Each client transmits the bet data to the server prior to receiving the game data from the server, and the server is configured to process the bet data based on the result of the game. 37. The client according to claim 36. 41. The client according to claim 36, wherein the communication line includes the Internet. 42. The client according to claim 36, wherein when generating the hash data by the hash data generating means, a digital signature with a time stamp is applied to the hash data. 43. A program of a server connected to a plurality of clients via a communication line, comprising: a thirtieth step of receiving hash data of random numbers generated by each client; A 31st step of transmitting all the hash data to each of the clients upon receipt of all the hash data transmitted from the client, and displaying all the hash data received by the client from the server on the client Using the game data transmitted from each client to the server, the 32nd step of transmitting the game data generated by dividing the random number into a predetermined number of bits after being displayed on the means; The 33rd step of playing the game with Server for the program to be executed by the server. 44. A program of a client connected to a server via a communication line, comprising: a 40th step of generating a random number and generating hash data of the random number; and the hash generated in the 40th step. 41st step of transmitting data to the server, and transmitting all the hash data to the client upon receipt of all the hash data transmitted from all the clients connected to the server By doing so, a 42nd step of displaying on the display means of the client all the hash data received by the client from the server, and after the client has performed the 42nd step,
A client program for causing the client to execute a 43rd step of transmitting to the server game data generated by dividing the random number into a predetermined number of bits. 45. An information management device and a plurality of information processing devices connected via a communication line, wherein the information processing device generates seed information according to a predetermined condition, and the seed information generation device. Based on the seed information generated by the means, is configured to include an authentication information generation unit that generates authentication information that is irreversibly and uniquely generated, and a seed information transmission unit, the information management device, Authentication information receiving means for receiving the authentication information from each of the information processing devices, and authentication information transmitting means for transmitting all of the plurality of authentication information received by the authentication information receiving means to each of the plurality of information processing devices. Each of the seed information transmitting means of the plurality of information processing devices, after receiving all of the plurality of authentication information transmitted from the information management device. The information processing system comprising an arrangement is, that to transmit the type information generated by the seed information generation unit to the information management apparatus. 46. An information processing method of an information management device, wherein a plurality of information processing devices are connected via a communication line, wherein the information processing device generates seed information according to a predetermined condition,
Based on the seed information, irreversibly and uniquely generated authentication information, an authentication information receiving step of receiving from each of the plurality of information processing devices, all of the plurality of authentication information received by the authentication information receiving step An authentication information transmitting step of transmitting to each of the plurality of information processing devices, and the information processing device after receiving all of the plurality of authentication information transmitted from the information management device by each of the plurality of information processing devices. And a seed information receiving step of receiving the generated seed information from each of the plurality of information processing devices. 47. An information management device in which a plurality of information processing devices are connected via a communication line, the information management device being irreversibly and uniquely generated based on seed information generated in each of the plurality of information processing devices. Authentication information receiving means for receiving authentication information from each of the plurality of information processing devices, and authentication information transmission for transmitting all of the plurality of authentication information received from the authentication information receiving means to each of the plurality of information processing devices Means, and a seed information receiving means for receiving the seed information generated in each of the plurality of information processing devices after the authentication information transmitting means transmits the authentication information. apparatus. 48. Further comprising a determining means for determining whether or not the seed information received by the seed information receiving means has been changed based on the authentication information received by the authentication information receiving means. Claim 47.
Information management device described. 49. The information management apparatus according to claim 47, wherein the seed information is a plurality of prime numbers, and the authentication information is a composite number formed by a product of the plurality of prime numbers. 50. The information management apparatus according to claim 47, wherein the authentication information is hash data of the seed information. 51. The composite information generating means for generating one or a plurality of composite information based on the seed information received by the seed information receiving means.
7. The information management device described in 7. 52. An information processing apparatus connected to an information management apparatus via a communication line, the seed information generating unit generating seed information according to a predetermined condition, and the seed generated by the seed information generating unit. Authentication information generating means for generating authentication information that is irreversibly and uniquely generated based on the information, and the seed information generated in each of the other information processing devices connected to the information management device via a communication line. And a seed information transmitting unit that transmits the seed information generated by the seed information generating unit to the information management device after receiving all of the authentication information corresponding to the information processing device. 53. The seed information receiving means for receiving the seed information generated in the other information processing apparatus from the information management apparatus, and the seed information based on the authentication information received by the authentication information receiving means. 53. The information management apparatus according to claim 52, further comprising a determination unit that determines whether or not the seed information received by the reception unit has been changed. 54. The seed information generation unit is configured to generate a plurality of prime numbers as the seed information, and the authentication information generation unit includes a plurality of the seed information generation units generated as the authentication information. 53. The apparatus is configured to generate a composite number that is a product of prime numbers.
The information processing device described. 55. The information management device and the plurality of information processing devices are configured to exchange information by a public key cryptosystem, and the seed information generation means generates the plurality of prime numbers by the public key cryptography. 53. The information processing apparatus according to claim 52, wherein the information processing apparatus is generated in a process of generating the public key and the secret key by a method. 56. The information management device and the plurality of information processing devices are configured to exchange information by public key cryptography, and the information processing device is provided with personal authentication of a person who operates the information processing device. 53. The information processing apparatus according to claim 52, further comprising an authentication device for performing the authentication, wherein the authentication device is configured to generate the public key and the secret key by the public key cryptosystem. 57. The seed information transmitting unit receives the authentication information corresponding to all of the seed information generated in each of the other information processing apparatuses, and then the seed information generating unit generates the seed information. 53. The information processing apparatus according to claim 52, which transmits seed information to the information management apparatus. 58. The information processing apparatus according to claim 52, wherein the authentication information generated by the authentication information creating means is hash data of the seed information. 59. A program for causing an information management device connected to a plurality of information processing devices to be connected via a communication line, the program being irreversible based on seed information generated in each of the plurality of information processing devices. And an authentication information receiving step of receiving authentication information generated uniquely from each of the plurality of information processing apparatuses, and all of the plurality of authentication information received in the authentication information receiving step, respectively, of the plurality of information processing apparatuses An authentication information transmitting step of transmitting to the authentication information transmitting step, and a seed information receiving step of receiving the seed information generated in each of the plurality of information processing devices after the authentication information is transmitted by the authentication information transmitting step; Information management device program to be executed by the management device. 60. A program for causing an information processing apparatus connected to the information management apparatus via a communication line to execute, a seed information generating step of generating seed information according to a predetermined condition, and the seed information generating step. Based on the seed information generated by the authentication information generation step of generating authentication information that is irreversibly and uniquely generated, in each of the other information processing device connected to the information management device via a communication line A seed information transmitting step of transmitting the seed information generated by the seed information generating step to the information management device after receiving all of the authentication information corresponding to the generated seed information; A program for an information processing device to be executed by a computer.