JP2020190784A - Server system, program and management method of transaction - Google Patents

Abstract

To provide a server system etc. which can dissolve complexity of a user generated in management of a distributed type transaction history having high falsification resistance, reinforce the security, enhance usability and versatility of the distributed type transaction history, and improve its convenience.SOLUTION: An information processing system 1 has a management server device 30 performing execution management of a transaction which: permits to serve address information generated by a secret key to a shop terminal device 20 executing the transaction; identifies a user terminal device 10 of an applicable user to make the user terminal device 10 recognize contents of the transaction, based on the address information, when its execution request including the address information and the contents of the transaction occurs from the shop terminal device 20 based on user's operation etc.; and registers the transaction on a distributed ledger recording network such as a block chain network.SELECTED DRAWING: Figure 2

Description

The present invention relates to a server system or the like when conducting electronic transactions.

In recent years, from the viewpoint of tamper resistance and the disadvantages of centralized networks, transactions that occur in electronic transactions such as blockchain (especially electronic payment) are distributed and registered in the database, and the decentralized type that manages them. Technology related to networks (distributed networks) has been proposed.

Recently, technologies related to distributed networks have been used not only for electronic payments but also for authentication and network service provision. In particular, recently, payments have been executed in order to improve user convenience. A system that links a blockchain to provide a blockchain and a blockchain to provide other services (for example, Patent Document 1), and a network service that involves confirmation of the target only by disclosing the minimum necessary personal information. A distributed network system capable of this (for example, Patent Document 2) is known.

Japanese Patent Application Laid-Open No. 2017-204070 Patent No. 6504639 Public Relations

However, in each of the above patent documents, the complexity of the user when registering a transaction in the database has not yet been eliminated for payment using a distributed ledger recording network such as a blockchain, and the transaction is described. It is also possible to prevent leakage of user identification information (specifically, private key information for signing a transaction) at the time of execution, and to reduce the labor required to incorporate the leakage prevention measure into the system. Not.

The present invention has been made to solve the above problems, and an object of the present invention is to eliminate the complexity of the user, which has occurred in the management of a decentralized transaction history having high tamper resistance, and the present invention. It is an object of the present invention to provide a server system or the like capable of further strengthening security, enhancing the usability and versatility of the distributed transaction history, and improving its convenience.

(1) In order to solve the above-mentioned problems, the present invention
User identification information indicating (a) execution by the user who owns the first communication terminal device and (b) identification information unique to each user assigned on the network stored in the first communication terminal device. A server system that manages transactions that are used and registered in the database on the network.
Address information indicating an address on the network for identifying the first communication terminal device is acquired from the first communication terminal device, and the acquired address information is obtained from the user, unlike the first communication terminal device. The providing means for providing the transaction to the desired second communication terminal device, and
Information transmitted from the second communication terminal device when a request for execution of a given transaction is generated by the user in association with the address information based on the use of the second communication terminal device. A receiving means for receiving transaction execution request information including transaction information indicating a transaction requested to be executed and the address information of the user.
A transmission means for transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the first communication terminal device having the address information included in the received transaction execution request information.
In conjunction with the first communication terminal device to which the transaction execution instruction is transmitted, registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. Issuance control means to control for
Has a configuration.

With this configuration, the present invention completes commercial transactions by sending and receiving data such as electronic payments. When collating electronic data such as electronic transactions and authentication, information on purchases such as amount and product name, or privilege coupons to be used. It is possible to specify the transaction without inputting the information necessary for the transaction indicating the contents to be collated, such as the user or the user side such as the user's terminal device.

For example, the present invention does not provide user identification information such as a private key used by a public key cryptosystem to a terminal device (specifically, a terminal device of an electronic business partner) that requests issuance of a transaction. The transaction can be specified in the terminal device of the business partner.

In particular, the present invention is a terminal device equipped with a terminal device that manages a private key as user identification information (that is, for example, an application called a wallet in which the private key is stored (hereinafter, also referred to as a "wallet application")). ), Etc., the terminal device for which the user identification information that is important when recording each transaction should be managed is limited to the terminal device owned by the user who executes the transaction, so that the user identification information should be acquired. Can be reduced.

The present invention not only prevents the leakage of the user identification information, but also stores the user identification information in the terminal device that requests the execution of the transaction, for example, as a countermeasure against leakage from the second communication terminal device. It is possible to eliminate the need for leak prevention measures based on the above and reduce the labor for the leak prevention measures.

Further, in the present invention, for example, as transaction issuance control, when registration data is issued as a transaction, it may be verified whether or not the transaction to be issued has been tampered with, and the transaction once issued such as a blockchain may be verified. When recording on a network where it is difficult to cancel the recording, it is possible to always issue an appropriate transaction, so that the convenience of the distributed ledger recording network can be improved.

Therefore, according to the present invention, for example, a decentralized transaction history (particularly, a transaction related to finance) having high tamper resistance (resistance to unauthorized tampering) represented by a blockchain in which transactions are distributed and recorded by user identification information such as a private key. ) Can be eliminated from the complexity of the user, the security is further strengthened, the usability and versatility of the decentralized transaction history are enhanced, and the convenience is also improved. be able to.

The "user identification information" includes unique identification information given to each user when using transaction registration, such as information on a private key used by a public key cryptosystem.

In principle, the "network" is preferably a decentralized P2P (peer-to-peer) network (a network that does not have an administrator in the center), but is not limited to this. It may be a centralized network in which the server system monitors and manages.

In addition, "transactions" include various transactions that accompany user behavior, such as electronic payment, use of services provided electronically (privileges such as coupons provided electronically), and personal authentication such as login. Is included.

Then, in the "transaction information" or "transaction execution request information", for example, the product name, service name, these IDs, the store name and its ID that requested the transaction, the purchased quantity, the unit price, the total amount, and the like are entered. It includes the content of the transaction to be included (loading), information about the terminal device requesting execution of the transaction (for example, device ID), and the date of the transaction.

Further, the "database" may be a database specified as one or one network address, but a distributed ledger in which transactions are registered in a distributed manner by a database managed by a plurality of or a plurality of network addresses. It is preferably a database used for a recording network.

In addition to the above, the "address information" is, for example, a user who is the only user who uses transaction registration on the network, or an address on the network of a communication terminal device owned by the user, and is another user or another user. Indicates information to be identified from the communication terminal device of.

Further, the "registration data" indicates, for example, electronically signed transaction information digitally signed by the user identification information, including transaction information encrypted by the user identification information.

Further, in "transaction issuance control", for example,
(A1) Having the second communication terminal device issue a transaction,
(A2) The server system issues a transaction by acquiring registration data from the second communication terminal device.
(A3) Notifying the second communication terminal device that the transaction has been executed,
(A4) Judging whether the transaction to be issued has been tampered with, and
(A5) Notifying the second communication terminal device, etc. of the determination result of the presence or absence of the falsification,
Etc. are included.

(2) Further, the present invention
The providing means
The cooperation ID is based on the instruction for creating the cooperation ID, which is an instruction transmitted from the second communication terminal device and is used for linking the first communication terminal device and the second communication terminal device. To generate
The generated cooperation ID is transmitted to the second communication terminal device,
The link information including at least the cooperation ID and the address information in the first communication terminal device is received from the first communication terminal device that has acquired the cooperation ID from the second communication terminal device.
Based on the received cooperation ID and the transmitted cooperation ID, the link information correctness determination process for determining the validity of the received link information is executed.
When the link information received by the link information validity determination process is determined to be valid, the second communication terminal device is provided with the address information included in the link information.

With this configuration, the present invention can recognize the user's communication terminal device in which the user identification information is stored in the communication terminal device that requests the execution of the transaction without using the user identification information.

Therefore, according to the present invention, the communication terminal device of the user in which the user identification information is stored and the communication terminal device that requests the execution of the transaction can be linked, so that the transaction between the communication terminal devices can be smoothly performed. Can send and receive information about.

The "cooperation ID" indicates identification information that is uniquely determined in the period until at least the address information of the communication terminal device having the user identification information is provided to another communication terminal device.

(3) Further, the present invention
User identification indicating (a) user identification information unique to each user executed by the user who owns the communication terminal device and (b) assigned on the network used in the first application that can be executed by the communication terminal device. A server system that manages transactions registered in a database on the network using information.
A means for providing address information indicating an address on the network for identifying the communication terminal device to a second application different from the first application executed in the communication terminal device or another communication terminal device. ,
When a request for execution of a given transaction is generated by the user based on the use of the second application in association with the address information, the communication terminal device or another communication terminal device via the second application A receiving means for receiving transaction execution request information including transaction information indicating the transaction requested to be executed and the address information of the user, which is transmitted information.
A transmission means for transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the communication terminal device having the address information included in the received transaction execution request information.
In conjunction with the communication terminal device to which the transaction execution instruction is transmitted, the registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. Issuance control means for control and
Has a configuration.

With this configuration, the present invention completes a commercial transaction by sending and receiving data such as electronic payment. When collating electronic data such as electronic transaction and authentication, information on purchase such as amount of money and product name, or a privilege coupon to be used. It is possible to execute the transaction without providing the information necessary for the transaction indicating the contents to be collated to the application in which the transaction occurs.

Therefore, similarly to the above, the present invention has a decentralized transaction history with high tamper resistance (resistance to unauthorized tampering) represented by a blockchain in which transactions are distributed and recorded by user identification information such as a private key. In particular, it is possible to eliminate the complexity of the user that has occurred in the management of financial transactions), strengthen the security, and enhance the usability and versatility of the decentralized transaction history, which is convenient. The sex can be improved.

The "application" or "application" is, for example, a program executed on a communication terminal device using the hardware (CPU, memory, etc.) of the communication terminal device, and includes transactions of goods and services. A program for executing a predetermined process using a network service is shown.

(4) Further, the present invention
The providing means
An ID transmitted according to the operation on the second application, and the cooperation ID is generated based on an instruction for creating a cooperation ID used for linking the first application and the second application. And
The generated cooperation ID is provided to the second application executed by the corresponding communication terminal device or another communication terminal device.
According to the operation on the first application that acquired the cooperation ID from the second application provided with the cooperation ID, the link information including at least the cooperation ID and the address information in the communication terminal device is received.
The link information correctness determination process for determining the identity of the received cooperation ID and the cooperation ID provided to the second application and determining the validity of the received link information is executed.
It has a configuration that provides the address information included in the link information to the second application when the link information received by the link information validity determination process is determined to be valid.

With this configuration, the present invention can recognize an application in which user identification information is stored in an application that requests execution of a transaction without using user identification information.

Therefore, according to the present invention, the application that stores the user identification information and the application that requests the execution of the transaction can be linked, so that the information related to the transaction can be smoothly exchanged between the applications. it can.

(5) Further, the present invention
The issuance control means
When the registration data is issued as the transaction, it has a configuration that executes a given process for confirming the execution of the transaction.

With this configuration, the present invention can issue a transaction itself, such as causing a second communication terminal device to issue a transaction, or acquiring registration data from a second communication terminal device and causing the server system to issue a transaction. By managing, it is possible to always issue an appropriate transaction when recording on a network such as a blockchain where it is difficult to cancel the record of a once issued transaction, and the convenience of a distributed ledger recording network. Can also be improved.

In addition, in "given process",
(B1) Notifying the second communication terminal device that the transaction has been executed,
(B2) Judging whether the transaction to be issued has been tampered with, and
(B3) Notifying the second communication terminal device, etc. of the determination result of the presence or absence of the falsification,
Etc. are included.

(6) Further, the present invention
The user identification information is private key information indicating information on the private key used by the public key cryptosystem.
The issuance control means
(I) The communication terminal device that has transmitted the transaction execution instruction generates the registration data in which the transaction information is encrypted based on the private key information, and uses the generated registration data. Control to issue the transaction for distributed registration in the database, or
(Ii) The communication terminal device that has transmitted the transaction execution instruction generates the registration data in which the transaction information is encrypted based on the private key information, and while acquiring the generated registration data, It has a configuration that executes any of the controls for issuing the transaction for distributed registration of the acquired registration data in the database.

With this configuration, the present invention can use a system that manages transaction history such as a blockchain that distributes and registers transactions in a database using a private key, thus reducing the complexity of the user when using the blockchain. It can be solved, the security can be further strengthened, the usability and versatility of the decentralized transaction history can be enhanced, and the convenience thereof can be improved.

(7) Further, the present invention
The issuance control means
As the given process, the validity of the registration data is determined by determining the identity of the transaction information specified by the generated registration data and the transaction information specified by the transaction execution instruction. Executes transaction legitimacy judgment processing to judge gender,
When the registration data is determined to be valid by the transaction validity determination process, either the control of causing the corresponding communication terminal device to issue the transaction or the control of issuing the transaction is executed. have.

With this configuration, the present invention can determine the validity of the executed transaction, so that fraud at the issuance stage of the transaction can be prevented and a sound transaction can be realized.

(8) Further, in the present invention, the transaction may be an electronic payment transaction.

(9) Further, the present invention
The network is a distributed ledger recording network,
The issuance control means
It may have a configuration in which the registration data is controlled to be issued as a transaction using the distributed ledger recording network.

(10) Further, in order to solve the above-mentioned problems, the present invention
User identification information indicating (a) execution by the user who owns the first communication terminal device and (b) identification information unique to each user assigned on the network stored in the first communication terminal device. A server system that manages transactions registered in the database on the network using
Address information indicating an address on the network for identifying the first communication terminal device is acquired from the first communication terminal device, and the acquired address information is obtained from the user, unlike the first communication terminal device. Providing means for providing the transaction of the above to a desired second communication terminal device,
Information transmitted from the second communication terminal device when a request for execution of a given transaction is generated by the user in association with the address information based on the use of the second communication terminal device. A receiving means for receiving transaction execution request information including transaction information indicating a transaction requested to be executed and the address information of the user.
A transmission means for transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the first communication terminal device having the address information included in the received transaction execution request information, and a transmission means.
In conjunction with the first communication terminal device to which the transaction execution instruction is transmitted, registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. Issuance control means, which controls for
It has a configuration that functions as.

With this configuration, the present invention completes commercial transactions by sending and receiving data such as electronic payments. When collating electronic data such as electronic transactions and authentication, information on purchases such as amount and product name, or privilege coupons to be used. It is possible to specify the transaction without inputting the information necessary for the transaction indicating the contents to be collated, such as the user or the user side such as the user's terminal device.

Therefore, similarly to the above, the present invention has a decentralized transaction history with high tamper resistance (resistance to unauthorized tampering) represented by a blockchain in which transactions are distributed and recorded by user identification information such as a private key. In particular, it is possible to eliminate the complexity of the user that has occurred in the management of financial transactions), strengthen the security, and enhance the usability and versatility of the decentralized transaction history, which is convenient. The sex can be improved.

(11) Further, in order to solve the above-mentioned problems, the present invention
User identification indicating (a) user identification information unique to each user executed by the user who owns the communication terminal device and (b) assigned on the network used in the first application that can be executed by the communication terminal device. A server system that manages transactions registered in the database on the network using information.
A providing means for providing address information indicating an address on the network for identifying the communication terminal device to a second application different from the first application executed in the communication terminal device or another communication terminal device.
When a request for execution of a given transaction is generated by the user based on the use of the second application in association with the address information, the communication terminal device or another communication terminal device via the second application A receiving means for receiving transaction execution request information including transaction information indicating the transaction requested to be executed and the address information of the user, which is transmitted information.
A transmission means for transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the communication terminal device having the address information included in the received transaction execution request information, and a transmission means.
In conjunction with the communication terminal device to which the transaction execution instruction is transmitted, the registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. Issuance control means for control,
It has a configuration that functions as.

With this configuration, the present invention completes a commercial transaction by sending and receiving data such as electronic payment. When collating electronic data such as electronic transaction and authentication, information on purchase such as amount of money and product name, or a privilege coupon to be used. It is possible to execute the transaction without providing the information necessary for the transaction indicating the contents to be collated to the application in which the transaction occurs.

Therefore, similarly to the above, the present invention has a decentralized transaction history with high tamper resistance (resistance to unauthorized tampering) represented by a blockchain in which transactions are distributed and recorded by user identification information such as a private key. In particular, it is possible to eliminate the complexity of the user that has occurred in the management of financial transactions), strengthen the security, and enhance the usability and versatility of the decentralized transaction history, which is convenient. The sex can be improved.

(12) Further, in order to solve the above-mentioned problems, the present invention
User identification information indicating (a) execution by the user who owns the first communication terminal device and (b) identification information unique to each user assigned on the network stored in the first communication terminal device. It is a management method that manages transactions registered in the database on the network by using it.
Address information indicating an address on the network for identifying the first communication terminal device is acquired from the first communication terminal device, and the acquired address information is obtained from the user, unlike the first communication terminal device. The step of providing the transaction of the above to the desired second communication terminal device, and
Information transmitted from the second communication terminal device when a request for execution of a given transaction is generated by the user in association with the address information based on the use of the second communication terminal device. A step of receiving transaction execution request information including transaction information indicating a transaction requested to be executed and the address information of the user, and
A step of transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the first communication terminal device having the address information included in the received transaction execution request information.
In conjunction with the first communication terminal device to which the transaction execution instruction is transmitted, registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. And the steps to control for
Has a configuration, including.

With this configuration, the present invention completes commercial transactions by sending and receiving data such as electronic payments. When collating electronic data such as electronic transactions and authentication, information on purchases such as amount and product name, or privilege coupons to be used. It is possible to specify the transaction without inputting the information necessary for the transaction indicating the contents to be collated, such as the user or the user side such as the user's terminal device.

Therefore, similarly to the above, the present invention has a decentralized transaction history with high tamper resistance (resistance to unauthorized tampering) represented by a blockchain in which transactions are distributed and recorded by user identification information such as a private key. In particular, it is possible to eliminate the complexity of the user that has occurred in the management of financial transactions), strengthen the security, and enhance the usability and versatility of the decentralized transaction history, which is convenient. The sex can be improved.

(13) Further, in order to solve the above-mentioned problems, the present invention
User identification indicating (a) user identification information unique to each user, which is executed by the user who owns the communication terminal device and (b) is assigned on the network used in the first application that can be executed by the communication terminal device. It is a management method that manages transactions registered in the database on the network using information.
A step of providing address information indicating an address on the network for identifying the communication terminal device to a second application different from the first application executed in the communication terminal device or another communication terminal device.
When a request for execution of a given transaction is generated by the user based on the use of the second application in association with the address information, the communication terminal device or another communication terminal device via the second application A step of receiving transaction execution request information including transaction information indicating the transaction requested to be executed and the address information of the user, which is transmitted information.
A step of transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the communication terminal device having the address information included in the received transaction execution request information.
In conjunction with the communication terminal device to which the transaction execution instruction is transmitted, the registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. Steps to control and
Has a configuration, including.

With this configuration, the present invention completes a commercial transaction by sending and receiving data such as electronic payment. When collating electronic data such as electronic transaction and authentication, information on purchase such as amount of money and product name, or a privilege coupon to be used. It is possible to execute the transaction without providing the information necessary for the transaction indicating the contents to be collated to the application in which the transaction occurs.

Therefore, similarly to the above, the present invention has a decentralized transaction history with high tamper resistance (resistance to unauthorized tampering) represented by a blockchain in which transactions are distributed and recorded by user identification information such as a private key. In particular, it is possible to eliminate the complexity of the user that has occurred in the management of financial transactions), strengthen the security, and enhance the usability and versatility of the decentralized transaction history, which is convenient. The sex can be improved.

It is a system block diagram which shows the structure of the information processing system which concerns on this invention. It is a functional block diagram which shows the structure of the management server apparatus in one Embodiment. This is an example of data stored in the address management DB in the management server device of one embodiment. Also This is an example of data stored in the transaction management DB in the management server device of one embodiment. It is a flowchart (the 1) for demonstrating the operation of the address information providing process and transaction execution process executed at the time of issuing a transaction in the information processing system of one Embodiment. It is a flowchart (No. 2) for demonstrating the operation of the address information providing process and transaction execution process executed at the time of issuing a transaction in the information processing system of one Embodiment. It is a flowchart (3) for demonstrating the operation of the address information providing process and transaction execution process executed at the time of issuing a transaction in the information processing system of one Embodiment. It is a flowchart (the 4) for demonstrating the operation of the address information providing process and transaction execution process executed at the time of issuing a transaction in the information processing system of one Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In the following embodiment, a server system that manages transactions related to data collation such as electronic transactions that are distributed and registered, or a system that includes the server system and a communication terminal device owned by a user (hereinafter, "information"). It is an embodiment when the server system or the like according to the present invention is applied to "processing system").

Further, in the following embodiment, as a distributed network (distributed network) for executing database management of transactions and for performing ledger recording (hereinafter, referred to as "distributed ledger recording network"). A network that realizes a blockchain (hereinafter, also referred to as a "blockchain network") will be described.

[1] Outline of Information Processing System First, the outline and configuration of the information processing system 1 in the present embodiment will be described with reference to FIG.

Note that FIG. 1 is a system configuration diagram showing the configuration of the information processing system 1 in the present embodiment.

Further, in FIG. 1, only some users and communication terminal devices are displayed in order to prevent the figure from becoming complicated. That is, in the actual information processing system 1, there are more users and communication terminal devices than for displaying.

(Information processing system)
The information processing system 1 of the present embodiment is connected to the blockchain network BCN, which is a decentralized network for executing transaction database management and a decentralized ledger recording network for recording transaction data in a ledger manner. , When issuing data related to data collation such as a user's electronic transaction (for example, electronic payment) as a transaction using the blockchain network BCN, or when issuing the transaction, while controlling the issuance of the transaction. It is a system for managing the transaction and the process for executing the issuance of the transaction (hereinafter, also referred to as "transaction execution process").

In particular, the information processing system 1 of the present embodiment is equipped with a terminal device that manages a private key as user identification information (for example, an application called a wallet in which the private key is stored (hereinafter, also referred to as a "wallet application"). A terminal device that is owned by a user who issues a transaction (that is, generates final data about the transaction), such as a terminal device that should manage user identification information that is important when recording each transaction. It is a system that can reduce the number of terminal devices for which user identification information should be acquired by limiting to only.

By having such a feature, the information processing system 1 of the present embodiment not only prevents leakage of the user identification information in the first place, but also, for example, measures against leakage from other communication terminal devices. It is possible to eliminate the need for leakage prevention measures based on the user identification information being stored in the terminal device requesting execution of the transaction, and to reduce the labor for the leakage prevention measures.

Further, the information processing system 1 of the present embodiment verifies whether or not the transaction to be issued has been tampered with even in the case of distributed recording in a network such as a blockchain where it is difficult to cancel the record of the once issued transaction. It is also possible to always issue appropriate transactions, and as a result, the convenience of the distributed ledger recording network can be improved.

Specifically, the information processing system 1 of the present embodiment is
(A1) An application called a wallet (hereinafter, also referred to as a wallet) that is used by a user and stores secret key information (hereinafter, also referred to as “private key information”) for executing transaction registration with the blockchain network BCN. A user terminal device 10 that has a "wallet application" (that is, has an execution environment for the wallet application) and issues a transaction.
(A2) A store terminal device 20 used when a service providing store that is a business partner of a user and makes a transaction execution request (for example, a payment execution request to a user) is provided.
(A3) A management server device 30 that is connected to the user terminal device 10 and the store terminal device 20 via the network N and manages transactions executed by the user.
It is designed to execute and manage transactions including transaction issuance control.

In the present embodiment, the user terminal device 10 and the store terminal device 20 that perform wireless communication are connected to the network N via the repeater BS.

In addition, the transaction of the present embodiment relates to a transaction related to electronic transactions, and the transaction related to the electronic transaction includes, for example, electronic payment and use of services provided electronically (privileges such as coupons provided electronically). It includes various transactions that accompany user actions.

Further, in the present embodiment, the "application" or "app" is executed on, for example, the user terminal device 10 or the store terminal device 20 by using the hardware (CPU, memory, etc.) of each terminal device. It is a program to be executed, and shows a program for executing a predetermined process using a network service including a transaction of goods and services.

In addition to the above, in the present embodiment, for convenience of explanation, the user terminal device 10, the store terminal device 20, and the management server device 30 are each connected via the network N to form a separate network from the blockchain network BCN. However, the network N to which these are connected and the blockchain network may be configured in the same network.

Further, in the present embodiment, the store terminal device 20 is directly connected to the network N, but via a server device for store management (not shown) or via a local network (not shown). It may be connected to the network N via the network N.

Then, in FIG. 1, the user terminal device 10 and the store terminal device 20 are physically separated from each other. For example, the user terminal device 10 has a two-dimensional bar code displayed on the store terminal device 20. When it needs to be read, it is actually used in the vicinity of the store terminal device 20.

Further, the user terminal device 10 of the present embodiment constitutes the first communication terminal device of the present invention, and the store terminal device 20 constitutes the second communication terminal device of the present invention.

(User terminal device)
The user terminal device 10 is a communication terminal device such as a PC (personal computer), a tablet-type information communication terminal device, a smartphone, or a portable telephone used by the user.

The user terminal device 10 has an operation function such as a keyboard, a mouse, and a numeric keypad, and a display function composed of display elements such as a liquid crystal panel and an organic EL (Electroluminescence) panel.

Further, the user terminal device 10 has a CPU and a memory for executing a predetermined application, executes data communication with the store terminal device 20 and the management server device 30, and executes data communication with the store terminal device 20 and the management server device 30. The transaction is executed in conjunction with, and the process related to the issuance of the transaction (transaction registration) to the blockchain network BCN is executed.

In particular, the user terminal device 10 has a configuration capable of executing a wallet application in which private key information as identification information unique to each user assigned on the network N is stored, and is managed by activating the wallet application. It has a configuration capable of executing an electronic transaction with the store terminal device 20 via the server device 30 and registering the transaction generated by the electronic transaction in the blockchain network BCN.

Further, the user terminal device 10 generates an address (that is, an address on the network N) for distinguishing from another user terminal device 10 on the network N as address information, and the management server device 30 and other devices. Has a configuration to provide to.

Further, the user terminal device 10 has a communication function using short-range wireless communication such as NFC or Bluetooth (registered trademark), or a communication function using short-range wireless communication such as NFC or Bluetooth (registered trademark) in order to cooperate with the store terminal device 20 such as a session ID described later for issuing a transaction. It has a cooperation function for sending and receiving various information including a two-dimensional barcode reading and information acquisition function.

(Terminal device for stores)
Similar to the user terminal device 10, the store terminal device 20 is a communication terminal device such as a PC (personal computer), a tablet-type information communication terminal device, a smartphone, or a portable telephone used by the user.

Further, the store terminal device 20 has a display function composed of operation functions such as a keyboard, a mouse, and a numeric keypad, and display elements such as a liquid crystal panel and an organic EL (Electroluminescence) panel, similarly to the user terminal device 10. Have.

In particular, in order to provide the address information to the user terminal device 10, the store terminal device 20 has a display control function for causing the user terminal device 10 to read a two-dimensional bar code on which the address information is formed, or a display control function. It has a communication function for executing short-range wireless communication such as NFC and Bluetooth (registered trademark) with the address information.

In addition, the store terminal device 20 performs authentication and other specific processing when making a payment at a store, when ordering a product, when using a service, or when using a network service such as login. Has a configuration for executing.

Further, the store terminal device 20 has a configuration in which a user can use a network service or the like to execute an application (for example, a native application) that requests a user's transaction, and the user is started by activating various applications. It has a configuration in which an electronic transaction with the terminal device 10 is executed, and various processes for registering the transaction generated by the electronic transaction in the blockchain network BCN by the terminal device 10 for the user are executed.

The store terminal device 20 may be fixedly installed in the store or may be movably arranged.

(Management server device)
The management server device 30 is used as a transaction for specifying purchase information such as an amount or product name, or transaction details such as a privilege coupon to be used in an electronic transaction that completes a commercial transaction by issuing a transaction such as electronic payment. It has a configuration capable of specifying the transaction without inputting necessary information on the user side such as the user or the user's terminal device.

In particular, the management server device 30 issues a transaction with a private key that also functions as user identification information based on a public key cryptosystem and records it in a distributed manner, and provides a blockchain network BCN with high tamper resistance (resistance to unauthorized tampering). When issuing a transaction by using the transaction, the transaction can be specified without providing the private key information to the terminal device of the electronic business partner requesting the transaction.

Then, the management server device 30 eliminates the complexity of the user that has occurred in the management of the decentralized transaction history (particularly, the transaction related to finance) having high tamper resistance, and further strengthens the security and further. It has a configuration that can enhance the usability and versatility of the decentralized transaction history and improve its convenience.

Specifically, the management server device 30
(B1) Address information providing process of acquiring address information indicating an address on the network N for specifying the user terminal device 10 and providing the address information to the store terminal device 20.
(B2) Information transmitted from the store terminal device 20 when a user requests execution of a given transaction based on the use of the store terminal device 20 in association with the address information. Transaction execution request processing that receives transaction execution request information including transaction information indicating the transaction requested to be executed and the address information of the user.
(B3) Transaction execution instruction transmission processing for transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the user terminal device 10 having the address information included in the received transaction execution request information, and
(B4) In conjunction with the user terminal device 10 to which the transaction execution instruction is transmitted, the transaction information is registered in the blockchain network BCN database (not shown) based on the private key information (user identification information). A process that controls the issuance of registration data used for transaction as a transaction (hereinafter, also referred to as "transaction issuance control process").
(That is, a process for executing a transaction (hereinafter, referred to as "transaction execution process")) is performed.

In particular, the management server device 30 has a configuration in which the transaction issuance control process executes a process for confirming the execution of the transaction when the registration data is issued as a transaction.

Further, the management server device 30 performs the address information providing process.
(B1-1) Identification information (hereinafter,) which is an instruction transmitted from the store terminal device 20 and is issued in advance in order to cooperate between the user terminal device 10 and the store terminal device 20 for issuing a transaction. , "Session ID"), the session ID is generated based on the generation instruction.
(B1-2) The generated session ID is transmitted to the store terminal device 20 to be transmitted.
(B1-3) The link information including at least the session ID and the address information in the user terminal device 10 is received from the user terminal device 10 that has acquired the session ID from the store terminal device 20.
(B1-4) Based on the received session ID and the transmitted session ID, the link information correctness determination process for determining the validity of the received link information is executed.
(B1-5) When the link information received by the link information validity determination process is determined to be valid, the store terminal device 20 is provided with the address information included in the link information.
It has a configuration.

[2] Configuration of Management Server Device [2.1] Next, the configuration of the management server device 30 of the present embodiment will be described with reference to FIGS. 2 to 4.

Note that FIG. 2 is a functional block diagram showing the configuration of the management server device 30 of the present embodiment, and FIGS. 3 and 4 show the address management DB 332 and transaction management of the management server device 30 of the present embodiment, respectively. This is an example of the data stored in the DB 333.

The communication control unit 310 is a predetermined network interface, constructs a communication channel with each user terminal device 10 and a store terminal device 20, and exchanges various data.

Various programs necessary for driving the management server device 30 are stored in the ROM / RAM 320. The ROM / RAM 320 is also used as a work area when various processes are executed.

The data storage unit 330 is composed of an HDD or an SSD (Solid State Drive).

Further, the data storage unit 330 stores and manages the application DB 331 in which various applications are stored, the address information and device identification information (device ID) of each user terminal device 10, and the session ID in association with each other. It has an address management DB 332 to be used and a transaction management DB 333 to store the history of each transaction.

The application DB 331 stores an application for issuing a session ID and providing link information, an application for issuing a transaction, and an application for managing the history thereof.

In the address management DB 332, for example, as shown in FIG. 3, for each session ID,
(A1) Information on the public key generated from the private key stored in the wallet application in the terminal device 10 for each user (hereinafter referred to as "public key information"),
(A2) Address information generated from the private key via the public key,
(A3) The user ID on the wallet application (user ID generated by installing the wallet application) or the device ID of the user terminal device 10 on which the wallet application is installed, and
(A4) Information for identifying the store terminal device 20 and its store instructed to generate an address in the user terminal device 10 (for example, the device ID of the store terminal device 20, address information indicating the address, and each store. Store ID given in advance to the store, login name and domain when requesting transaction execution using a native application or web browser),
Are associated and stored.

In the present embodiment, for example, the public key is generated from the private key using an elliptic curve, and the address information is encoded by double-hashing the public key generated in this way. Has been generated.

Further, in the transaction management DB 333, for example, as shown in FIG. 4, for each transaction,
(B1) Transaction execution ID,
(B2) Date and time when the transaction was issued,
(B3) The store name and store ID that requested the issuance of the transaction,
(B4) User name, user ID, address information of the target user of the transaction,
(B5) The ID of the store terminal device 20 used to request the issuance of the transaction, and
(B6) Transaction verification results (for example, validity determination results) and the like are stored in association with each other.

The management control unit 340 is mainly composed of a central processing unit (CPU), and integrates and controls each unit of the management server device 30 by executing a program.

The data processing unit 350 is configured by the same central processing unit (CPU) as the management control unit 340 or by a central processing unit (CPU) different from the management control unit 340, and various processes are performed by executing an application. To realize.

In particular, the data processing unit 350 includes an address management unit 351 that executes address information providing processing, a transaction issuance management unit 352 that executes transaction execution request processing and transaction execution instruction transmission processing, and transaction issuance control processing and transaction execution. Transaction execution management unit 353 that manages transactions related to transaction execution (that is, transaction execution processing) in conjunction with each device, including transaction execution confirmation processing and transaction issuance control processing that execute a given process for confirmation. And realize.

For example, the address management unit 351 of the present embodiment constitutes the providing means of the present invention, and the transaction issuing management unit 352 constitutes the receiving means and the transmitting means of the present invention together with the communication control unit 310, and executes the transaction. The management unit 353 constitutes the issuance control means of the present invention.

The details of the address management unit 351 and the transaction issuance management unit 352 and the transaction execution management unit 353 and their operations in the present embodiment will be described later.

The display unit 370 is realized by a CRT, an LCD, a touch panel type display, an HMD (head mounted display), or the like.

The drawing control unit 380 generates various images for performing various displays on the display unit 370, and controls the display unit 370.

The operation unit 390 is for inputting operation data by the administrator, and its function is realized by a touch panel, a touch panel type display, or the like.

The operation unit 390 includes buttons, levers, keyboards, microphones, acceleration sensors, mice, trackpads, or input devices (line-of-sight input devices) that can input operation information (operation signals) other than the indicated position. You may have it.

[2.2] Address Management Unit Next, the details of the address information providing process executed by the address management unit 351 of the present embodiment will be described.

When the address management unit 351 receives a session ID generation instruction transmitted from the store terminal device 20 by an operation of a user or a store administrator, the address management unit 351 sets an ID uniquely determined at that time as a session ID according to a predetermined algorithm. Generate.

Then, the address management unit 351 transmits the generated session ID to the store terminal device 20 that has transmitted the session ID generation instruction, and at the same time, identifies the store terminal device 20 that has given the generation instruction and the store. It is registered in the address management DB 332 together with the information (for example, the device ID of the store terminal device 20, the address information indicating the address, or the store ID given in advance for each store).

On the other hand, when the address management unit 351 receives the information transmitted from the user terminal device 10, the public key and address information generated by the wallet application in the user terminal device 10 and other information stored internally. It is determined whether or not the link information includes the device ID for identifying the user terminal device 10 and the acquired session ID.

Then, when the address management unit 351 determines that the information transmitted from the user terminal device 10 is the link information, the address management unit 351 acquires the session ID included in the link information and already stores the acquired session ID and the address management DB 332. The session ID that has been acquired is collated to determine the validity of the acquired session ID.

That is, the address management unit 351 executes the link information validity determination process for determining the validity of the acquired session ID based on the acquired session ID and the session ID already stored in the address management DB 332.

For example, in the address management unit 351, the acquired session ID is a session ID already registered in the address management DB, and the address information is not yet registered, and the session ID satisfies the given conditions. If it is determined that they match, it is determined that the acquired session ID is valid.

As a given condition, the address management unit 351 is, for example, within a predetermined time (for example, within one hour) after the session ID already registered in the address management DB 332 is registered, or the session. It is determined that the device ID of the store terminal device received together with the session ID generation instruction at the time of issuing the ID is the same.

On the other hand, when the link information received by the link information validity determination process is determined to be valid, the address management unit 351 determines that the device ID and address of the store terminal device 20 stored together with the session ID. Alternatively, the corresponding store terminal device 20 is specified based on the store ID or the like, and the address information included in the link information received by the specified store terminal device 20 is provided (transmitted).

In addition, the store terminal device 20 of the present embodiment cooperates with the user terminal device 10 which wants to cooperate by short-range radio such as Bluetooth (registered trademark) instead of the operation of the user or the administrator. Information to be performed may be broadcast, and a session ID generation instruction may be transmitted when the user terminal device 10 receives a cooperation request based on the broadcast information. Even in this case, the address management unit The 351 generates a session ID based on the received session ID generation instruction, and registers the session ID together with various information in the address management DB 332.

[2.3] Transaction Issuance Management Unit Next, details of the transaction execution request processing and the transaction execution instruction transmission processing executed by the transaction issuance management unit 352 of the present embodiment will be described.

The transaction issuance management unit 352 uses information transmitted from the store terminal device 20 when a user requests execution of a given transaction based on the use of the store terminal device 20 in association with the address information. Therefore, the transaction execution request process for receiving the transaction execution request information including the transaction information indicating the transaction requested to be executed and the address information of the user is executed.

In particular, the transaction issuance management unit 352 has, for example, a transaction amount such as a product name, a service name, these IDs purchased by a user, a store name requesting a transaction and its ID (store ID), a purchased quantity, a unit price, and a total amount. Receives transaction information including each information such as the content of the transaction including (also referred to as a payload), the information (device ID) about the store terminal device 20 that requested the transaction execution, and the date of the transaction.

Further, the transaction issuance management unit 352 is, for example, an address on the network of the user or the user terminal device 10 owned by the user, which is the only one determined on the network of the user who uses the transaction registration, and is another user or another user. The information identified from the communication terminal device of the above and generated from the private key via the public key is received as address information.

On the other hand, since the transaction issuance management unit 352 causes the blockchain network BCN to issue a transaction by the corresponding user terminal device 10, when it receives the transaction execution request information, the address included in the received transaction execution request information. A transaction execution instruction transmission process for transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information is executed to the user terminal device 10 having the information.

For example, the transaction issuance management unit 352 of the present embodiment identifies an identifier (hereinafter, "transaction execution") for specifying transaction information (that is, information incorporated as a payload) indicating the content of the transaction when it is issued as a signed transaction. ID ”) is transmitted to the corresponding user terminal device 10.

The transaction issuance management unit 352 assigns a predetermined ID (that is, a transaction execution ID) when transmitting a transaction execution instruction, and information necessary for issuing a transaction including various transaction information (hereinafter, "" (Also referred to as "transaction") is registered in the transaction management DB 333.

Further, when a transaction execution instruction is transmitted to the corresponding user terminal device 10, a transaction including a transaction issuance control process for issuing a transaction on the blockchain network by the user terminal device 10 and the transaction execution management unit 353. Execution processing (including transaction execution confirmation processing) is executed.

[2.4] Transaction Execution Management Unit Next, details of the transaction issuance control processing and the transaction execution management processing of the transaction execution processing executed by the transaction execution management unit 353 of the present embodiment will be described.

(Overview of Transaction Execution Management Department)
The transaction execution management unit 353
(A1) In conjunction with the user terminal device 10 that has transmitted the transaction execution instruction, the registration data used when registering the transaction information in the database is issued as a signed transaction based on the user identification information. Transaction issuance control processing for
(A2) Transaction execution confirmation process that executes a given process to confirm the execution of a transaction when the registration data is issued as a signed transaction.
To execute.

(Transaction issuance control processing)
The transaction execution management unit 353 has the transaction issuance control process as
(A1-1) The registration data generated by encrypting a transaction including transaction information with a private key by the corresponding user terminal device 10 is issued from the user terminal device 10 on the blockchain network as a signed transaction. Control (that is, control for issuing a transaction from the user terminal device 10), or
(A1-2) The registration data generated by encrypting the transaction including the transaction information with the private key by the corresponding user terminal device 10 is transmitted and acquired, and the acquired registration data is used as a signed transaction. Control to issue on the blockchain network (that is, control to issue a transaction from the management server device 30),
To execute.

Specifically, the transaction execution management unit 353 has the issuance control process of (A1-1) as the issuance control process.
(A1-1-1) When a transaction acquisition request is received from the user terminal device 10 to which the transaction execution instruction (for example, the execution instruction including the transaction execution ID) is transmitted, based on the transaction execution ID.
(A1-1-2) The transaction management DB 333 is searched based on the received transaction execution ID, and the transaction including the corresponding transaction information is transmitted to the corresponding user terminal device 10.

Then, the transaction execution management unit 353 signs the transaction for registration to the blockchain network BCN in the corresponding user terminal device 10 and issues the signed transaction (that is, the registration data).

Further, the transaction execution management unit 353 may perform the issuance control process of (A1-2).
(A1-2-1) When a transaction acquisition request is received from the user terminal device 10 to which the transaction execution instruction (for example, transaction execution ID) is transmitted, based on the transaction execution ID.
(A1-2-2) The transaction management DB 333 is searched based on the received transaction execution ID, and the transaction including the corresponding transaction information is transmitted to the corresponding user terminal device 10.
(A1-2-3) The user terminal device 10 is made to sign a transaction (registration data) for registration with the blockchain network BCN, and the signed transaction is acquired.
(A1-2-4) Issue the acquired signed transaction to the blockchain network BCN.

(Transaction execution confirmation processing)
The transaction execution management unit 353 may use, for example, as a transaction execution confirmation process.
(A2-1) A process of notifying the store terminal device 20 that a transaction has been issued (hereinafter referred to as "issue notification process"),
(A2-2) A process of determining whether or not a transaction to be issued is a legitimate transaction in conjunction with the corresponding user terminal device 10 (hereinafter referred to as "transaction legitimacy determination process"), or
(A2-3) A process of notifying the store terminal device 20 of the determination result of the transaction validity determination process,
And so on.

(Issuance notification processing)
In the case of the issuance control process of (A1-1), the transaction execution management unit 353 issues a transaction signed by the corresponding user terminal device 10 to the blockchain network BCN. , The user terminal device 10 is made to transmit a signed transaction including a transaction execution ID, and when the signed transaction is received, the corresponding store terminal device 20 is notified that the transaction has been issued.

Further, as the issuance notification process, the transaction execution management unit 353 acquires the signed transaction from the corresponding user terminal device 10 in the case of the issuance control process of (A1-2), and the acquired signed transaction. Is issued to the blockchain network BCN, and the corresponding store terminal device 20 is notified that the transaction has been issued.

(Transaction legitimacy judgment processing)
As the transaction validity judgment process, the transaction execution management unit 353 executes a judgment process for confirming the validity of the transaction before issuing the signed transaction to the blockchain network BCN, for example, during the transaction issuance control process. To do.

Specifically, the transaction execution management unit 353, in the case of the issuance control process of (A1-1),
(B1-1) When a transaction is signed by the corresponding user terminal device 10, the signed transaction is transmitted and acquired together with the transaction execution ID before its issuance.
(B1-2) When the signed transaction before issuance is received, the corresponding public key is searched and acquired based on the transaction execution ID, and the transaction including the transaction information is acquired by decrypting with the public key.
(B1-3) The transaction information (or transaction) registered in the transaction management DB 333 in association with the transaction execution ID and the transaction information (or compound) included in the transaction before signature obtained by decrypting with the public key. Transaction) and the identity of
(B1-4) When the transaction information (or transaction) is the same, it is determined that the transaction to be issued is a legitimate transaction, and the corresponding user terminal device 10 is instructed to issue the transaction.
(B1-5) If the transaction information (or transaction) is not the same, it is determined that the transaction to be issued is not a legitimate transaction, and the corresponding user terminal device 10 is instructed to stop issuing the transaction. ..

When the user terminal device 10 receives the transaction issuance instruction of (B1-4), the user terminal device 10 issues the already generated signed transaction to the blockchain network BCN.

Further, when the transaction execution management unit 353 transmits the transaction issuance instruction of (B1-4), it notifies the corresponding store terminal device 20 that the signed transaction has been issued, as in the issuance notification process. When the transaction issuance stop instruction of (B1-5) is transmitted, the corresponding store terminal device 20 is notified that the transaction has been canceled.

On the other hand, the transaction execution management unit 353 is in the case of the issuance control process of (A1-2).
(B2-1) When a transaction is signed by the corresponding user terminal device 10, the transaction is transmitted and acquired together with the transaction execution ID.
(B2-2) When the transaction before issuance is received, the corresponding public key is searched and acquired based on the transaction execution ID, and the transaction information is acquired by decrypting with the public key.
(B2-3) Transaction information (or transaction) registered in transaction management DB333 in association with transaction execution ID, and transaction information (or transaction itself) included in a transaction before issuance obtained by decryption with a public key. ) And the identity of
(B2-4) When the transaction information (or transaction) is the same, it is determined that the transaction to be issued is a legitimate transaction, and the acquired signed transaction is issued to the blockchain network BCN. ,
(B2-5) If the transaction information (or transaction) is not the same, it is determined that the transaction to be issued is not a legitimate transaction, and the issuance of the transaction is stopped.

Further, when the transaction execution management unit 353 issues the signed transaction of (B2-4), the store terminal device 20 indicates that the signed transaction has been issued, as in the issue notification process. When the issuance of the signed transaction of (B2-5) is canceled, the corresponding store terminal device 20 is notified that the transaction has been canceled.

[3] Operation related to transaction issuance Next, the address information providing process and the transaction execution process executed at the time of issuing a transaction in the information processing system 1 of the present embodiment will be described with reference to FIGS. 5 to 8.

5 to 8 are flowcharts for explaining the operations of the address information providing process and the transaction execution process executed when the transaction is issued in the information processing system 1 of the present embodiment.

Further, in this operation, the transaction execution process is executed after the address information providing process is executed, but each process may be executed separately.

(Address information provision processing)
First, when the store terminal device 20 detects an operation instruction of a user or a store administrator (step S201), the management server device 30 issues an instruction to generate a session ID (that is, a cooperation ID) based on the operation instruction. (Step S202).

Next, in the management server device 30, when the address management unit 351 receives the session ID generation instruction (step S301), the session ID is generated according to a predetermined algorithm, and the generated session ID is generated in the corresponding store terminal device 20. Transmit (step S302).

At this time, the address management unit 351 registers the generated session ID in the address management DB 332 and waits for the reception of the link information from the user terminal device 10.

Next, when the store terminal device 20 receives the session ID generated by the management server device 30 (step S203), the store terminal device 20 converts the session ID into a two-dimensional barcode and displays the converted session ID (step S204). ..

At this time, the store terminal device 20 ends the display of the two-dimensional bar code of the session ID after a predetermined time has elapsed from the display timing or based on an instruction from the user or the like.

On the other hand, when the user terminal device 10 reads the two-dimensional bar code displayed on the store terminal device 20 (step S101), the user terminal device 10 acquires the session ID from the read two-dimensional bar code (step S102).

Then, the user terminal device 10 generates a public key and address information from the private key according to the wallet application mounted on the user terminal device 10 (step S103), and the generated public key and address information and the internal The link information including the device ID for distinguishing from the other user terminal device 10 stored in the above and the acquired session ID is transmitted to the management server device 30 (step S104).

The user terminal device 10 acquires an access address of the management server device 30 incorporated in the two-dimensional barcode together with the session ID, and connects the management server device 30 and the communication line based on the access address. The link information may be transmitted by connecting, or may be transmitted to the management server device 30 based on a user's instruction or an instruction from the wallet application, or using a preset address.

Next, in the management server device 30, when the address management unit 351 receives the link information transmitted from the user terminal device 10 (step S303), the session ID included in the link information is collated with the already issued session ID. Then (step S304), the identity of the session ID is determined (step S305).

At this time, if the address management unit 351 determines by collating the session ID that the session ID included in the link information does not match the session ID that has already been issued and satisfies the given conditions, the address management unit 351 determines that the session ID does not match. , The link information is discarded (step S306), and this operation is terminated.

On the other hand, the address management unit 351 collates the session ID with the session ID included in the link information and the session ID that has already been issued and satisfies a given condition such as within a predetermined time from the occurrence time. When it is determined that the two match, the generated public key and address information included in the link information and the device ID for distinguishing from the other user terminal device 10 stored inside are the session ID. Is registered in the address management DB 332 in association with (step S307).

Next, the address management unit 351 transmits that the session ID has been registered in the corresponding store terminal device 20, and waits for the reception of the transaction execution request transmitted from the store terminal device 20 (step S308).

Finally, when the store terminal device 20 receives the fact that the session ID transmitted from the management server device 30 has been registered (step S205), the store terminal device 20 displays the result (step S206).

At this time, the store terminal device 20 ends the display of the session ID registration result after a predetermined time has elapsed from the display timing or based on an instruction from the user or the like.

In this operation, the address information provision process is started based on the operation of the user or the store administrator, but the store terminal device 20 wishes to cooperate by short-range radio such as Bluetooth (registered trademark). When the user terminal device 10 broadcasts information for cooperation to the user terminal device 10 and the user terminal device 10 receives a cooperation request based on the broadcast information, the address information providing process is started. May be good.

Further, in this operation, the user terminal device 10 generates the public key and the address information when the session ID is acquired from the two-dimensional barcode, but the public key and the address information are generated in advance. Alternatively, the public key may be generated in advance, and the address information may be generated when the session ID is acquired from the two-dimensional barcode.

Further, in the present embodiment, during the cooperation between the user terminal device 10 and the store terminal device 20, various information related to the address information including the session ID is stored in the management server device 30 (specifically, the address). While the registration is maintained in the management DB 332), when the cooperation is canceled, various data related to the address information of the corresponding session ID is deleted.

(Transaction execution processing)
Next, the store terminal device 20 detects an operation instruction of a user or a store manager (step S211), and generates transaction information indicating the contents of the transaction based on the operation instruction (step S212).

Next, the store terminal device 20 transmits the transaction execution request information including the generated transaction information and the address information of the corresponding user to the management server device 30, and receives the execution result notification indicating the transaction execution result. (Step S213).

Next, in the management server device 30, when the transaction issuance management unit 352 receives the transaction execution request information (step S311), the transaction issuance management unit 352 acquires the address information and the transaction information included in the received transaction execution request information (step S312).

Next, the transaction issuance management unit 352 registers the transaction information, the address information, the store ID, the date and time, and the like as transactions in the transaction management DB 333 in association with the transaction execution ID while generating the transaction execution ID (step S313). ).

Next, the transaction issuance management unit 352 push-notifies the user terminal device 10 having the acquired address information with the identifier of the transaction execution ID as a transaction execution instruction, and the transaction information from the corresponding user terminal device 10. Waits for the acquisition request of (step S314).

On the other hand, when the user terminal device 10 receives the transaction execution instruction transmitted from the management server device 30 (step S111), the user terminal device 10 acquires the transaction execution ID included in the received transaction execution instruction (step S112). A transaction acquisition request including the transaction execution ID is transmitted to the management server device 30 (step S113).

Next, in the management server device 30, when the transaction issuance management unit 352 receives the transaction acquisition request (step S315), the transaction management DB 333 is searched based on the transaction execution ID included in the acquired transaction acquisition request. Acquires a transaction including the corresponding transaction information, and transmits the acquired transaction to the corresponding user terminal device 10 (step S316).

At this time, the transaction issuance management unit 352 waits for the receipt of the transaction issuance completion notification from the corresponding user terminal device 10.

Next, when the user terminal device 10 receives the transaction (step S114), the acquired transaction is encrypted with the private key, the transaction is signed, and the transaction is issued (signed) to the blockchain network BCN according to the wallet application. Data, i.e., registration of a signed transaction) (step S116).

Next, the user terminal device 10 transmits the issuance completion notification of the signed transaction to the management server device 30 together with the transaction execution ID (step S117), and ends this operation.

On the other hand, in the management server device 30, when the transaction execution management unit 353 receives the signed transaction (transaction encrypted by the private key) including the transaction execution ID transmitted from the user terminal device 10 (step). S317), a transaction execution confirmation process for notifying the corresponding store terminal device 20 of the transaction issuance result is executed (step S318), and this operation is terminated.

Finally, when the store terminal device 20 receives the transaction execution result notification (step S214), the store terminal device 20 displays the received notification (step S215) and ends this operation.

When executing the transaction validity determination process in the transaction execution process, the transaction execution management unit 353 performs the signed transaction at the stage where the user terminal device 10 signs the transaction in the process of step S116. Based on the acquired transaction ID and the like, the identity with the transaction provided to the user terminal device 10 and the transaction information included in the transaction is determined.

Then, when the generated transaction is determined to be valid by the transaction validity determination process, the user terminal device 10 issues the signed transaction to the blockchain network BCN and determines that the transaction is not valid. If so, the issuance of the transaction is stopped based on the instruction of the transaction execution management unit 353.

Further, the above operation is an operation when a transaction is issued to the blockchain network by the user terminal device 10, but when the management server device 30 issues the transaction, the transaction execution management unit 353 When the user terminal device 10 signs a transaction in the process of step S116, the signed transaction is acquired, and the acquired signed transaction is issued to the blockchain network BCN.

Then, in this case, when performing the transaction validity determination processing, the transaction execution management unit 353 sets the transaction provided to the user terminal device 10 for the signed transaction or the transaction information included in the transaction. Judge the identity of.

Further, in this case, the transaction execution management unit 353 issues the signed transaction to the blockchain network BCN when the transaction validity determination process determines that the signed transaction is valid. If it is determined that the transaction is not valid, the issuance of the transaction is stopped.

[4] Modification Example Next, a modification of the present embodiment will be described.

(Modification example 1)
In the present embodiment, the transaction is issued by the user terminal device 10 based on the transaction execution request by the store terminal device 20, which is a communication terminal device different from the user terminal device 10. A transaction may be issued based on a transaction execution request by an application related to a web browser or SNS.

Specifically, the management server device 30
(A1) The address information indicating the address on the network N generated from the private key information held by the wallet application (that is, the first application) for specifying the user terminal device 10 is acquired, and the user is used. Address information providing processing provided to a second application such as a web brother executed by the terminal device 10 (for example, a web application; hereinafter, described using a "web application").
(A2) When a user requests execution of a given transaction based on the use of the web application in association with the address information, the user terminal device 10 or another user terminal device via the second web application. Transaction execution request processing that receives execution request information including transaction information indicating the transaction requested to be executed and address information of the user, which is information transmitted from 10.
(A3) A transaction execution instruction based on the transaction information included in the transaction execution request information is transmitted to the user terminal device 10 having the address information included in the received transaction execution request information.
(A4) In conjunction with the user terminal device 10 to which the transaction execution instruction is transmitted, the registration data used when registering the transaction information in the database is signed based on the user identification information (that is, the private key information). Controls to issue as a transaction
It may have a configuration.

Further, in this case, the management server device 30 performs the address information providing process.
(A1-1) An ID transmitted according to the operation of the web application, and identification information issued in advance for linking the wallet application and the web application for transaction issuance (hereinafter, referred to as "session ID". ) Is generated, the session ID is generated, and the session ID is generated.
(A1-2) Send the generated session ID to the web application and
(A1-3) According to the operation on the wallet application that acquired the session ID from the web application, the link information including at least the session ID and the address information in the wallet application is received.
(A1-4) Based on the received session ID and the transmitted session ID, the link information validity determination process for determining the validity of the received link information is executed.
(A1-5) When the link information received by the link information validity determination process is determined to be valid, the address information included in the link information is provided to the web application.
Execute each process.

In this case, in order to acquire the session ID from the web application by the wallet application, the user terminal device 10 executes it by a deep link or the like that causes the wallet application to directly acquire the session ID from the web application.

(Modification 2)
The management server device 30 of the present embodiment is configured by one unit, but may be configured by a plurality of devices.

(Modification 3)
Further, in the present embodiment, each DB is provided in the management server device 30, and these DBs are managed and controlled only by the management server device 30, but the management and the control entity of each DB are separate. Computer system may be used.

(Modification example 4)
In the present embodiment, the blockchain network has been described as a distributed network (distributed network) for executing database management of transactions and as a distributed ledger recording network for performing ledger recording. The ledger recording network is not limited to the blockchain network.

Further, in the present embodiment, it is preferable that the "distributed ledger recording network" is, in principle, a decentralized P2P (peer-to-peer) network (a network that does not have an administrator in the center). However, the present invention is not limited to this, and a centralized network in which one server system monitors and manages may be used, or transactions are distributed and managed by using a database specified as one or one network address. You may.

(Modification 5)
In the present embodiment, the address information providing process and the transaction execution process are executed when the above transaction is issued, but authentication for network services such as SNS and use of electronic coupons in physical stores and virtual stores. , Network services and transactions such as the use of benefits in physical stores are also available.

1 ... Information processing system 10 ... User terminal device 20 ... Store terminal device 30 ... Management server device 310 ... Communication control unit 320 ... RAM
330 ... Data storage unit 331 ... Application DB
332 ... Address management DB
333 ... Transaction management DB
340 ... Management control unit 350 ... Data processing unit 351 ... Address provision processing unit 352 ... Transaction issuance management unit 353 ... Transaction execution management unit 370 ... Display unit 380 ... Drawing control unit 390 ... Operation unit

Claims (13)

User identification information indicating (a) execution by the user who owns the first communication terminal device and (b) identification information unique to each user assigned on the network stored in the first communication terminal device. A server system that manages transactions that are used and registered in the database on the network.
Address information indicating an address on the network for identifying the first communication terminal device is acquired from the first communication terminal device, and the acquired address information is obtained from the user, unlike the first communication terminal device. The providing means for providing the transaction to the desired second communication terminal device, and
Information transmitted from the second communication terminal device when a request for execution of a given transaction is generated by the user in association with the address information based on the use of the second communication terminal device. A receiving means for receiving transaction execution request information including transaction information indicating a transaction requested to be executed and the address information of the user.
A transmission means for transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the first communication terminal device having the address information included in the received transaction execution request information.
In conjunction with the first communication terminal device to which the transaction execution instruction is transmitted, registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. Issuance control means to control for
A server system characterized by being equipped with. In the server system according to claim 1,
The providing means
The cooperation ID is based on the instruction for creating the cooperation ID, which is an instruction transmitted from the second communication terminal device and is used for linking the first communication terminal device and the second communication terminal device. To generate
The generated cooperation ID is transmitted to the second communication terminal device,
The link information including at least the cooperation ID and the address information in the first communication terminal device is received from the first communication terminal device that has acquired the cooperation ID from the second communication terminal device.
Based on the received cooperation ID and the transmitted cooperation ID, the link information correctness determination process for determining the validity of the received link information is executed.
A server system that provides the address information included in the link information to the second communication terminal device when the link information received by the link information validity determination process is determined to be valid. User identification indicating (a) user identification information unique to each user executed by the user who owns the communication terminal device and (b) assigned on the network used in the first application that can be executed by the communication terminal device. A server system that manages transactions registered in a database on the network using information.
A means for providing address information indicating an address on the network for identifying the communication terminal device to a second application different from the first application executed in the communication terminal device or another communication terminal device. ,
When a request for execution of a given transaction is generated by the user based on the use of the second application in association with the address information, the communication terminal device or another communication terminal device via the second application A receiving means for receiving transaction execution request information including transaction information indicating the transaction requested to be executed and the address information of the user, which is transmitted information.
A transmission means for transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the communication terminal device having the address information included in the received transaction execution request information.
In conjunction with the communication terminal device to which the transaction execution instruction is transmitted, the registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. Issuance control means for control and
A server system characterized by being equipped with. In the server system according to claim 3,
The providing means
An ID transmitted according to the operation on the second application, and the cooperation ID is generated based on an instruction for creating a cooperation ID used for linking the first application and the second application. And
The generated cooperation ID is provided to the second application executed by the corresponding communication terminal device or another communication terminal device.
According to the operation on the first application that acquired the cooperation ID from the second application provided with the cooperation ID, the link information including at least the cooperation ID and the address information in the communication terminal device is received.
The link information correctness determination process for determining the identity of the received cooperation ID and the cooperation ID provided to the second application and determining the validity of the received link information is executed.
A server system that provides the address information included in the link information to the second application when the link information received by the link information validity determination process is determined to be valid. In the server system according to any one of claims 1 to 4.
The issuance control means
A server system that executes a given process for confirming the execution of the transaction when the registration data is issued as the transaction. In the server system according to any one of claims 1 to 5,
The user identification information is private key information indicating information on the private key used by the public key cryptosystem.
The issuance control means
(I) The communication terminal device that has transmitted the transaction execution instruction generates the registration data in which the transaction information is encrypted based on the private key information, and uses the generated registration data. Control to issue the transaction for distributed registration in the database, or
(Ii) The communication terminal device that has transmitted the transaction execution instruction generates the registration data in which the transaction information is encrypted based on the private key information, and while acquiring the generated registration data, A server system that executes any of the controls for issuing the transaction for distributed registration of the acquired registration data in the database. In the server system according to claim 6,
The issuance control means
As the given process, the validity of the registration data is determined by determining the identity of the transaction information specified by the generated registration data and the transaction information specified by the transaction execution instruction. Executes transaction legitimacy judgment processing to judge gender,
A server that executes either control to cause the corresponding communication terminal device to issue the transaction or control to issue the transaction when the registration data is determined to be valid by the transaction validity determination process. system. In the server system according to any one of claims 1 to 7.
A server system in which the transaction is an electronic payment transaction. In the server system according to any one of claims 1 to 8.
The network is a distributed ledger recording network,
The issuance control means
A server system that controls the issuance of the registration data as a transaction using the distributed ledger recording network. User identification information that is (a) executed by the user who owns the first communication terminal device and (b) indicates identification information unique to each user assigned on the network stored in the first communication terminal device. A server system that manages transactions registered in the database on the network using
Address information indicating an address on the network for identifying the first communication terminal device is acquired from the first communication terminal device, and the acquired address information is obtained from the user, unlike the first communication terminal device. Providing means for providing the transaction of the above to a desired second communication terminal device,
Information transmitted from the second communication terminal device when a request for execution of a given transaction is generated by the user in association with the address information based on the use of the second communication terminal device. A receiving means for receiving transaction execution request information including transaction information indicating a transaction requested to be executed and the address information of the user.
A transmission means for transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the first communication terminal device having the address information included in the received transaction execution request information, and a transmission means.
In conjunction with the first communication terminal device to which the transaction execution instruction is transmitted, registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. Issuance control means, which controls for
A program characterized by functioning as. User identification indicating (a) user identification information unique to each user executed by the user who owns the communication terminal device and (b) assigned on the network used in the first application that can be executed by the communication terminal device. A server system that manages transactions registered in the database on the network using information.
A providing means for providing address information indicating an address on the network for identifying the communication terminal device to a second application different from the first application executed in the communication terminal device or another communication terminal device.
When a request for execution of a given transaction is generated by the user based on the use of the second application in association with the address information, the communication terminal device or another communication terminal device via the second application A receiving means for receiving transaction execution request information including transaction information indicating the transaction requested to be executed and the address information of the user, which is transmitted information.
A transmission means for transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the communication terminal device having the address information included in the received transaction execution request information, and a transmission means.
In conjunction with the communication terminal device to which the transaction execution instruction is transmitted, the registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. Issuance control means for control,
A program characterized by functioning as. User identification information indicating (a) execution by the user who owns the first communication terminal device and (b) identification information unique to each user assigned on the network stored in the first communication terminal device. It is a management method that manages transactions registered in the database on the network by using it.
Address information indicating an address on the network for identifying the first communication terminal device is acquired from the first communication terminal device, and the acquired address information is obtained from the user, unlike the first communication terminal device. The step of providing the transaction of the above to the desired second communication terminal device, and
Information transmitted from the second communication terminal device when a request for execution of a given transaction is generated by the user in association with the address information based on the use of the second communication terminal device. A step of receiving transaction execution request information including transaction information indicating a transaction requested to be executed and the address information of the user, and
A step of transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the first communication terminal device having the address information included in the received transaction execution request information.
In conjunction with the first communication terminal device to which the transaction execution instruction is transmitted, registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. And the steps to control for
A method of managing transactions, characterized by including. User identification indicating (a) user identification information unique to each user, which is executed by the user who owns the communication terminal device and (b) is assigned on the network used in the first application that can be executed by the communication terminal device. It is a management method that manages transactions registered in the database on the network using information.
A step of providing address information indicating an address on the network for identifying the communication terminal device to a second application different from the first application executed in the communication terminal device or another communication terminal device.
When a request for execution of a given transaction is generated by the user based on the use of the second application in association with the address information, the communication terminal device or another communication terminal device via the second application A step of receiving transaction execution request information including transaction information indicating the transaction requested to be executed and the address information of the user, which is transmitted information.
A step of transmitting a transaction execution instruction based on the transaction information included in the transaction execution request information to the communication terminal device having the address information included in the received transaction execution request information.
In conjunction with the communication terminal device to which the transaction execution instruction is transmitted, the registration data used when registering the transaction information in the database is issued as the transaction based on the user identification information. Steps to control and
A method of managing transactions, characterized by including.