JP2020086962A - Virtual asset deposit system - Google Patents

Abstract

To ensure safe storage of virtual assets.SOLUTION: A virtual asset deposit system 100 includes: a plurality of user terminals 1 storing virtual assets owned by individual users; a user management server 2 in which IP addresses communicable with the user terminals via a public communication line 200 are constantly disclosed; a balance virtual server 3 that serves to be a direct destination of virtual assets when viewed from the user terminals and that is communicatively connected to the public communication line only when receiving virtual currency from the user terminals or sending virtual currency to the user terminals; and an asset storage server 4 that is a final storage destination of virtual assets and that is communicatively connected to the balance virtual server but is not connected to the public communication line. When the balance virtual server 3 is notified by the asset storage server 4 that writing of a virtual asset is completed, the communication connection of the balance virtual server 3 to the public communication line is disconnected.SELECTED DRAWING: Figure 1

Description

The present invention relates to a virtual asset deposit system capable of depositing virtual assets via a public communication line.

In recent years, it is a well-known fact that virtual currency transactions are actively carried out on a daily basis.
Since 2015, there is also a virtual currency called Ethereum, which can be directly traded with the other party through a P2P (peer-to-peer) network without being regulated by financial authorities.
It has been a long time since the word blockchain, which is a technology that supports the issuance and distribution of virtual currencies, has been used. Virtual currencies such as Bitcoin (registered trademark) and Ethereum are traded on their respective block chains.

One of the major advantages of virtual currency is the convenience of foreign remittance.
In the case of remittance to foreign countries, there is a method that is currently widely used as a remittance via a specific financial institution such as a bank.
However, under the present circumstances, it is customary to send a fee of several hundred yen to several thousand yen by sending money overseas through a specific financial institution. Therefore, the cost increases as the number of remittances increases.
On the other hand, virtual currency does not need to go through a specific financial institution, and realizes direct remittance between users by way of a block chain. Therefore, even if the money is remitted overseas, the minimum fee is charged, and it is expected that the remittance cost overseas will be significantly reduced.
It is no exaggeration to say that virtual currencies are a revolutionary existence that has the potential to overturn conventional wisdom in financial transactions and change the flow of money to something completely different.

Various virtual currency storage techniques have been proposed in order to realize a safe holding method of virtual currency having such an attractive asset value (for example, refer to Patent Document 1).

Japanese Unexamined Patent Application Publication No. 2017-120539

By the way, a means for managing virtual currency is called a wallet.
As a wallet that can be used easily and easily, there is a method called a paper wallet that physically stores hash values of virtual currencies on a paper medium.
However, according to the paper wallet, it is difficult to recover the hash value of the virtual currency by tracing the user's memory when the user loses or is stolen, is burned by a fire, or is lost by an earthquake disaster. is there.
Further, in the first place, even when a paper wallet is written by hand on a paper medium, even a transcription error may occur.

As a wallet used by general users, there are a desktop wallet for installing dedicated software on a personal computer and a mobile wallet for installing a dedicated application on a smartphone.
There is also a method in which a dedicated hardware terminal (hardware wallet) for managing virtual currency is connected to a personal computer by USB, and the hash value of virtual currency is recorded (stored) in the hardware wallet.

There is also a virtual currency management method called a web wallet that is managed within a site set on the Internet.
In this method, a unique login ID and password are registered for each user on the site (server) of the business that provides the web wallet, and the login ID, password, and authentication encryption are used to log in to the business site. Manage virtual currency with.
However, virtual currency is distributed by sending and receiving data via the network, so the disadvantage of a web wallet is that the business site that stores the virtual currency is always exposed to hacking, computer virus, and theft threats. There is a problem that is being done.

Recently, although measures have been introduced to minimize the damage caused by hacking by performing two-step user authentication, even if two-step authentication settings are applied when logging in to the business site, hacking will prevent security. There are also cases where the
Even with the two-step authentication, it is hard to say that the virtual currency can be safely stored against the threat of hacking.

As described above, unfortunately, the existing virtual currency storage environment that is currently available cannot fully meet the needs of people who desire further security of virtual currency.
Therefore, the potential expectations for the appearance of a scheme that can safely store "virtual assets" (virtual currencies, tokens, etc.) are high. A token is a unique coin issued on the blockchain.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a mechanism capable of storing virtual assets very safely.

[First invention]
Therefore, in order to solve the above problem, the virtual asset deposit system according to the first invention of the present application,
A virtual asset deposit system for accepting deposit of virtual assets owned by a user who has completed user registration,
A plurality of user terminals that are terminals owned by individual users and that store virtual assets owned by each user,
A user management server that is capable of communicating with each user terminal via a public communication line and whose IP address is always open to the public;
A server that is a direct destination of virtual assets when viewed from the user terminal, and can communicate with the public communication line only when receiving virtual currency from the user terminal or sending virtual currency to the user terminal An accounting virtual server connected to
A server that is the final storage destination of virtual assets, and is connected to the cash accounting virtual server so that it can communicate, but not connected to a public communication line.
Is equipped with

Each individual user terminal
A user registration means for transmitting the mail address used by the user of the user terminal and the password unique to the user to the user management server when the user inputs the password unique to the user.
When the information of the destination is notified from the cash accounting virtual server, a virtual asset transmitting means for transmitting the virtual currency stored in the user terminal to the cash accounting virtual server after the communication destination is designated and connected. Have

The user management server is
User registration means for registering the mail address and password sent from the user terminal, notifying the cashier virtual server that the user registration has been completed, and transmitting the mailer user registered mail address to the cashier virtual server,

The cashier virtual server is
Communication connection management means for connecting or disconnecting the communication connection to the public communication line of the cashier virtual server,
When the communication connection management means communicatively connects the accounting virtual server to the public communication line in response to the notification that the user registration is completed, the destination information of the accounting virtual server is sent to the user terminal as the destination of the virtual asset. Destination notification means to notify the email address,
A virtual asset receiving means for receiving a virtual asset from the user terminal when the user terminal designates destination information and makes a communication connection,
Virtual asset transfer means for transferring the virtual asset received by the virtual asset receiving means to the asset storage server,

The asset storage server is
A virtual asset storage means for writing the virtual asset transmitted from the cashier virtual server to the storage unit,
Storage completion notifying means for notifying the token server that the writing of the virtual asset is completed,

The communication connection management means of the cash accounting virtual server is configured to disconnect the communication connection to the public communication line of the cash accounting virtual server when the asset storage server notifies that the virtual assets have been written.

According to the virtual asset deposit system of the first invention, when depositing (writing to the storage unit) of the virtual asset in the asset storage server is completed, the cash accounting virtual server establishes a communication connection to the public communication line of the cash accounting virtual server. Disconnect.
In this way, by blocking (stopping) the communication connection function after the end of depositing virtual assets, it is possible to save virtual assets (virtual currencies, tokens, etc.) deposited by users from the threat of hacking, and safeguard important assets. You can keep it anyway.
As described above, the cash receipt/delivery virtual server that directly receives the virtual assets from the user terminal is completely connected to the public communication line (Internet, etc.) except for the very small communication time required to import (deposit) the virtual assets from the user terminal. Has been cut off.

[Second invention]
A program according to a second invention of the present application is the virtual asset deposit system according to the first invention,
A token server which is capable of communicating with each user terminal via a public communication line and whose IP address is always open to the public;

The asset storage server is
The storage completion notifying means for notifying the token server that the writing of the virtual asset is completed,
Have

The token server is
When the asset management server notifies that the writing of the virtual asset from the user terminal is completed, an original token assigning unit that assigns the original token originally issued in the virtual asset deposit system to the user terminal, did.

According to the second invention, when the virtual asset transmitted from the user terminal is stored in the asset storage server which is the final storage destination of the virtual asset in the virtual asset depositing system, the user terminal "Original token" is given.
The original token is a privilege token for a user who deposits a virtual asset in the virtual asset deposit system of the present invention.
As a result, the service for the user can be improved, and the incentive for the user to deposit virtual currency in the system can be increased.

[Third invention]
A program according to a third invention of the present application is the virtual asset deposit system according to the first or second invention,
If the user requests to pay out virtual assets,

The user terminal is
Token holding means for transmitting the original token given from the token server to the token server when receiving the virtual asset transferred from the cashier virtual server,
Have

The cash accounting virtual server, the communication connection management means for communicatively connecting the cash accounting virtual server to a public communication line,
The destination notification for notifying the user terminal 1 of the destination information of the cash receipt/delivery virtual server and notifying the asset storage server that the user wishes to pay out the virtual asset when the notification of the destination information for the user terminal is completed Means and
When a virtual asset is transmitted from the asset storage server, a virtual asset delivery means for transferring the virtual asset to the user terminal,
Have

The asset storage server is
When the user notifies that there is a desire to pay out the virtual asset, the virtual asset spending means for transmitting the virtual asset owned by the user to the accounting virtual server,
Have

The token server is
When receiving the original token sent from the user terminal and the original token from the user terminal, the original token stripping means for notifying the cash virtual server that the stripping of the original token is completed,
Have

The communication connection management means of the cashier virtual server is configured to disconnect the communication connection to the public communication line of the cashier virtual server when the token server notifies that the deprivation of the original token is completed.

According to the third aspect of the present invention, the asset storage server, which is the final storage destination for depositing virtual assets from a large number of users, dispenses the virtual assets of the user desiring to dispense to the user terminal via the accounting virtual server.
Here, when the payment virtual server is completed, the cash virtual server immediately disconnects the communication connection of the cash virtual server to the public communication line.
As a result, the security of virtual assets entrusted by many other users is maintained.
According to the third aspect of the invention, at the time of completing the payout (return) of the virtual asset to the user, the token server deprives the original token given to the user at the time of depositing the virtual asset.

[Fourth Invention]
In order to solve the above problems, a virtual asset deposit system according to a fourth invention of the present application is the virtual asset deposit system according to the first to third inventions,
A contract server that sends and receives deposit contracts to and from the user terminal by an electromagnetic method,
Further equipped with,

The user terminal is
A contract means for accepting user input to the virtual asset deposit contract received from the contract server and transmitting the deposit contract agreed by the user to the contract server,
Have

The cashier virtual server is
User registration means for further transmitting the user registration completion notification and the same mail address to the contract server when the user registration completion notification and the mail address of the user terminal are received from the user management server,
Communication connection management means for communicatively connecting the accounting virtual server to a public communication line in response to receipt of a deposit contract completion notification,
Have

The contract server is
A contract document sending unit that stores the mail address received from the cashier virtual server and sends the fixed form of the virtual asset deposit contract to the user terminal by designating the mail address.
When a deposit agreement with the user consent has been received from the user terminal, an agreed contract receiving means for notifying the cashier virtual server that the deposit agreement is completed,
Have

The destination notification means of the cashier virtual server is
When the completion of the deposit contract is notified and the cash accounting virtual server is communicatively connected to the public communication line, the destination information of the cash accounting virtual server is notified to the user terminal.

According to the fourth aspect of the invention, a contract server is provided to send and receive the deposit contract with the user terminal by an electromagnetic method.
By doing this, it is possible to exchange the virtual asset deposit contract more smoothly before depositing the virtual asset from the user terminal to the cashier virtual server, and to execute the virtual asset under the mutually agreed deposit contract. Can make deposits.

[Fifth Invention]
In order to solve the above problems, a virtual asset deposit system according to a fifth invention of the present application is the virtual asset deposit system according to the first to fourth inventions,
In the cashier virtual server,
Every time the communication connection management means disconnects the communication connection to the public communication line of the accounting virtual server, new destination information is assigned to the accounting virtual server instead of the destination information currently assigned to the accounting virtual server. It is configured to be.

In the present invention, after the deposit of the virtual asset in the asset storage server is completed, the communication connection to the public communication line of the accounting virtual server is disconnected. Further, according to the fifth invention, after the communication connection is disconnected. The destination information is changed.
Here, as the destination information of the cash receipt/delivery virtual server, an IP (Internet Protocol) address/URL and the like can be mentioned.
In this way, by changing the destination information (IP address or the like) of the communication access to the accounting virtual server which is the direct destination of the virtual asset when viewed from the user terminal 1, a third party identifies the accounting virtual server. It can be harder to do and can increase the robustness against hacking threats.

It is a block diagram showing the whole virtual asset deposit system composition concerning an embodiment. It is a block diagram which shows the electric constitution of the user terminal which concerns on embodiment. It is a block diagram which shows the electric constitution of the user management server which concerns on embodiment. It is a figure which shows an example of the data structure of user information. It is a block diagram which shows the electric constitution of the accounting virtual server which concerns on embodiment. It is a block diagram which shows the electric constitution of the asset storage server which concerns on embodiment. It is a block diagram which shows the electric constitution of the token server which concerns on embodiment. It is a figure which shows an example of the user registration screen in a user terminal. It is a figure which shows an example of the user page login screen in a user terminal. It is a figure which shows an example of the user page menu screen in a user terminal. It is a figure which shows an example of the personal information confirmation screen in a user terminal. It is a figure which shows an example of the possession property list screen in a user terminal. It is a figure which shows an example of the account list screen in a user terminal. It is a sequence diagram which shows operation|movement of each component in deposit processing of a virtual asset. It is a sequence diagram which shows operation|movement of each component in the payment process of a virtual asset. It is a block diagram showing a modification of the whole composition of a virtual property deposit system. It is a block diagram showing a modification of electric composition of a user terminal. It is a block diagram which shows the electric constitution of a contract server. It is a sequence diagram which shows operation|movement of each component in the deposit processing of virtual assets based on the modification of this invention.

The virtual asset deposit system of the present invention will be described below with reference to FIGS. 1 to 19.
[Embodiment]
According to the first embodiment of the present invention, a cash virtual server (virtual currency/token) held by a user is temporarily received by a cashier virtual server from a user terminal via a public communication line, and then becomes a final storage destination of the virtual asset. When the deposit of virtual assets in the asset storage server that is not connected to the public communication line is completed, the communication connection to the public communication line of the cash receipt/disbursement virtual server is disconnected, and a virtual asset deposit system is configured to save the virtual assets from the threat of hacking. Here is an example.

FIG. 1 is a block diagram showing the overall configuration of a virtual asset deposit system 100 according to the embodiment.
As shown in FIG. 1, the virtual asset deposit system 100 of this example includes a user terminal 1 (1-1 and 1-2 in the example of FIG. 1) and a user management server 2, the Internet, a mobile communication network, and the like. It is a system connected in a communicable state via the public communication line 200.

The communication connection state between each component in this example is as follows.
The user terminal 1 is a terminal possessed by each individual user and stores the virtual assets VP possessed by each user. In this system 100, a plurality of user terminals 1 are used.
The user management server 2 is a server whose IP address is always open to the public. Therefore, the server 2 always accepts communication access from each user terminal 1 via the public communication line 200.

The cashier virtual server 3 is a server that is a direct destination of the virtual asset VP when viewed from the user terminal 1.
The cashier virtual server 3 once receives the virtual assets owned by the user from the user terminal 1 via the public communication line 200, and then transfers the received virtual assets to the asset storage server 4, which is the final storage destination.
The accounting virtual server 3 of the present system 100 (1) when receiving virtual currency from the user terminal 1 (when depositing virtual currency), or (2) when transmitting virtual currency to the terminal 1 (when paying out virtual currency) ), only temporarily connected to the public communication line 200 in a communicable manner.
In this example, the public IP address (public IP), which is the destination information of the accounting virtual server 3 when viewed from the user terminal 1, is changed every time the communication connection of the server 3 is disconnected from the public communication line 200.

The asset storage server 4 is a server that is a final storage destination of the virtual asset VP.
The asset storage server is communicably connected to the accounting virtual server 3.
On the other hand, the asset storage server 4 is always unconnected to the public communication line 200, and is in a communication environment separated from the external environment in which a large number of unspecified terminals such as the user terminal 1 exist. It has been placed.
With such a configuration, the virtual assets entrusted to the user are kept away from the threat of hacking and the safe storage state is maintained.

Further, in this example, the user who deposits the virtual asset VP in the virtual asset depositing system 100 is given the original token OT independently issued in the system 100.
The original token is a token uniquely issued by the system 100, which is given as a privilege in response to the user having used the deposit service of the virtual asset deposit system 100.
The token server 5 manages this original token OT.
Further, the token OT is returned from the user terminal 1 to the token server 5 when the virtual asset VP that has been deposited once is paid out to the user.

Next, the electrical configurations of the user terminal 1 (1-1 and 1-2 in the example of FIG. 1), the user management server 2, the cashier virtual server 3, the asset storage server 4, and the token server 5 will be sequentially described.
The terminal 1 and the servers 2 to 5 are similar in device configuration, although they differ in the scale of calculation processing capacity and storage capacity. As shown in FIG. 1, any of the constituent elements 1, 2, 3, 4, and 5 has an output unit including a liquid crystal display, a printer (not shown), a main body for executing various arithmetic processes, a keyboard and a touch panel. And an input unit including a mouse (not shown).
Further, the apparatus main body has a control function centered on a CPU that executes arithmetic processing, a storage function that uses a hard disk drive (HDD), a ROM, a RAM, and a communication function that transmits and receives various signals or information. ..

FIG. 2 is a block diagram showing an electrical configuration of the user terminal 1 according to the first embodiment.
As shown in FIG. 2, the user terminal 1 includes an input unit 14 and an output unit 15. Further, the user terminal 1 includes a control unit 11 including a CPU (central processing unit) that executes arbitrary arithmetic processing. A storage unit 12 including a hard disk drive (HDD), a ROM, a RAM, and the like, and a communication unit 13 including a communication port (not shown) that forms an input/output path for various signals or information.
The communication unit 13 is connected to a public communication line 200 such as the Internet or a mobile communication network, and performs various communications with other devices. A network interface, a modem or the like is used as the communication unit 13.

The control unit 11 has a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc., and loads an application program stored in the ROM/storage unit 12 into the RAM. Then, it implements various logical means.
The user terminal 1 implements a user registration application unit 111, a virtual asset transmission unit 112, a token holding unit 113, a login unit 114, an information reference unit 115, and a virtual asset reception unit 116.

The user registration application unit 111 displays a user registration screen (FIG. 8) according to the URL (Uniform Resource Locator) designation for the user management server 2.
The display of the registration screen (FIG. 8) can be accessed even by a user who has not registered in the virtual asset deposit system 100 yet.
When the user registration application unit 111 accepts the input of the mail address used by the user and the password unique to the user, the user registration application unit 111 transmits the mail address and the password to the user management server 2 for the user registration.

In recent years, SNS (Social Networking Service) represented by Facebook (registered trademark) and Twitter (registered trademark) has become widespread, and the number of SNS users has been increasing all over the world. There is.
Therefore, in the user registration (FIG. 8) of this example, if the user already owns an SNS handle name such as Facebook (registered trademark) and Twitter (registered trademark), the account registered in the same SNS. It is also possible to authenticate (log in) on behalf of someone.

The virtual asset transmitting means 112 is means for transmitting the virtual asset to the cashier virtual server 3 in order to deposit the virtual asset VP stored in the storage unit 12 of the user terminal 1 into the virtual asset depositing system 100.
HTTP or the like can be used as a communication protocol for transmitting virtual assets.

When transmitting the virtual asset, more specifically, the “combination of hash value and password” is transmitted.
Here, the hash value (irregular character string with a fixed number of characters) is generated by a calculation operation (encryption) of a hash function on arbitrary data.
The character string (hash value) encrypted by the hash function has the irreversibility that the original data before encryption cannot be restored no matter how much the hash value is referred to.
As described above, the hash function plays a role of preventing the data tampering of the virtual currency.
In virtual currency, specific transaction contents with high confidentiality are encrypted by a hash function.

The token holding unit 113 writes the original token OT transmitted from the token server 5 in the storage unit 12.
When the deposited virtual currency is received from the cash virtual server 3, the token holding means 113 returns the original token by transmitting the original token to the token server 5.

The login unit 114 is a unit that accepts input of a login ID and a password (for example, a character string composed of alphanumeric characters/symbols having a predetermined number of digits or more) in order to receive login authentication for the system 100.
In this example, the login means 114 accepts the input of the login ID and the password via the user page login screen (FIG. 9) and transmits the login ID and the password to the user management server 2.
An arbitrary e-mail address used by the user can be used as the login ID.
If the login authentication is successful, the screen transitions to the user page menu screen (FIG. 10).

The information reference unit 115 is a unit that displays various screens provided from the user management server 2 via the public communication line 200.
More specifically, the means 115 starts the user page menu screen (FIG. 10), the personal information confirmation screen (FIG. 11), the owned asset list screen (FIG. 12), and the account list screen (FIG. 13) of the deposit system 100. Display various screens.

For example, the information reference unit 115 displays the user page menu screen (FIG. 10) when the login authentication to the user management server 2 is successful.

Further, the information reference unit 115 displays various screens provided with functions in response to pressing of various buttons arranged on the user page menu screen (FIG. 10).
For example, when the “personal information” button is pressed on the user page menu screen, the means 115 displays the personal information confirmation screen (FIG. 11).
Further, when the “possessed asset information” button is pressed on the user page menu screen, the reference means 115 displays the possessed asset list screen (FIG. 12).
Further, when the “account information” button is pressed on the user page menu screen, the referring means 115 displays the account list screen (FIG. 13).

When the deposited virtual asset is transmitted (disbursed) from the cashier virtual server 3, the virtual asset receiving unit 116 receives the virtual asset and stores it in the storage unit 12.

Next, the electrical configuration of the user management server 2 will be described.
FIG. 3 is a block diagram showing the electrical configuration of the user management server 2 according to this embodiment.
The user management server 2 includes an input unit 24 and an output unit 25.
Further, as shown in FIG. 3, the server 2 includes a control unit 21 including a CPU (central processing unit) that executes arbitrary arithmetic processing, a storage unit 22 including a hard disk drive (HDD), ROM, RAM, and the like. The communication unit 23 includes a communication port (not shown) that forms an input/output path for various signals or information.
The communication unit 23 is connected to a public communication line (not shown) such as the Internet or a mobile communication network, and performs various communications with other devices.

The control unit 21 has a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc., and loads an application program stored in the ROM/storage unit 22 into the RAM. Then, it implements various logical means.
The member registration server 2 realizes a user registration unit 211, a login authentication unit 212, and an information providing unit 213.

The user registration means 211 is means for user-registering the mail address and password transmitted from the user terminal 1.
The user registration referred to here means that the user registration unit 211 associates the mail address received from each terminal 1 with the password and writes it in the user information 221 (FIG. 4).
The user information 221 is information that specifies a correspondence relationship between a mail address unique to each user and an attribute related to the user.
In this example, the mail address of each user is used as a login ID for uniquely identifying each user.
Further, the user information 221 of this example is associated with personal information relating to the privacy of the user having higher confidentiality with respect to the mail address.

Further, the means 211 notifies the cashier virtual server 3 that the user registration is completed.
When notifying that the user registration is completed, the user registration means 211 transmits the user-registered mail address to the cashier virtual server 3.

The login authentication means 212 is means for performing login authentication using a login ID (email address) and password for the user.
Further, the same means 212 uses various functions provided by buttons arranged on the user page menu screen (FIG. 10) only for the user terminal 1 that has transmitted the proper login ID and password via the user page login screen (FIG. 9). Permission to use.

The information providing unit 213 provides the user terminal 1 that has succeeded in login authentication with the following information related to the user who uses the terminal 1.
(1) Personal information of the user himself (FIG. 11)
(2) List of assets owned by the user (Fig. 12)
(3) List of accounts used by the user to deposit and withdraw virtual assets in the virtual asset deposit system 100 (FIG. 13)

Here, the personal information illustrated in FIG. 11 is information that specifies a correspondence relationship between a user registered as a user in the system 100 and the privacy of the user (for example, sex, date of birth, occupation, etc.).
In this example, a deposit contract is made in writing on a paper medium between a business operator who operates the virtual asset deposit system 100 and a user who deposits the virtual asset. After the conclusion of the deposit contract, the business operator manually inputs the user's personal information entered in the items of the deposit contract through the input unit 24 of the member registration server 2, whereby the personal information is recorded in the user information 221. It
Note that in the screen example of FIG. 11, editing authority is given to the personal information from each user terminal 1, and when the user's address, telephone number, etc. are changed, the system administrator of the user management server 2 is used. It is configured so that information updates can be reflected immediately without any need.

Further, the possessed asset list illustrated in FIG. 12 is information indicating a correspondence relationship between a user who is registered as a user in the present system 100 and virtual assets (virtual currencies and tokens) possessed by the user.

Furthermore, the account list illustrated in FIG. 13 is information that specifies a correspondence relationship between a user who is registered as a user in the system 100 and an account of a financial institution used when the user deposits and withdraws virtual assets.

Next, the electrical configuration of the cashier virtual server 3 will be described.
FIG. 5 is a block diagram showing an electrical configuration of the accounting virtual server 3 according to the present embodiment.
The configuration of the cash receipt/delivery virtual server 3 is the same as that of each of the above-mentioned servers 1 and 2 except for the logical means realized by the control unit.
In the accounting virtual server 3, the control unit 31 realizes the user identifying unit 311, the communication connection managing unit 312, the transmission destination notifying unit 313, the virtual asset receiving unit 314, the virtual asset transferring unit 315, and the virtual asset delivering unit 316.

The user identifying unit 311 receives the notification that the user registration is completed from the user management server 2, and writes the mail address received from the server 2 in the storage unit 32 at the time of the completion notification.

The communication connection management means 312 is means for connecting or disconnecting the communication connection of the accounting virtual server 3 to the public communication line 200.
The communication connection management unit 312 communicatively connects the cash accounting virtual server 3 to the public communication line 200 when notified that “user registration is completed”.
Further, when the asset management server 4 notifies that the writing of the virtual asset is completed, the communication connection management unit 312 stops (disconnects) the communication connection of the cash accounting virtual server 3 to the public communication line 200.

Further, the communication connection management means 312 performs an operation of connecting or disconnecting the communication connection of the cash accounting virtual server 3 to the public communication line 200 even when the virtual asset deposited by the user is paid out to the user.
The communication connection management means 312 communicatively connects the server 3 to the public communication line 200 when the user makes a “request for paying out virtual assets” to the business operator of the system 100.
Also, when the token server 5 notifies that the user's deprivation of the original token is completed, the communication connection management unit 312 stops (disconnects) the communication connection of the cash accounting virtual server 3 to the public communication line 200.

Every time the communication connection management means 312 disconnects the communication connection of the cashier virtual server 3 to the public communication line 200, the “destination information” currently given to the cashier virtual server 3 (in this example, the IP address). Instead of this, new destination information is added to the server 3.

The transmission destination notifying unit 313 notifies the destination information (transmission destination of the virtual asset VP) of the accounting virtual server 3 when the completion of user registration is notified and the accounting virtual server 3 is communicably connected to the public communication line 200. Notify the user terminal 1. In this example, the notification is sent to the user's mail address of the user terminal 1.
As the destination information of the cashier virtual server 3, an IP address assigned to the server 3 or a URL designating the server 3 can be adopted.

Further, when there is a “request for payment of virtual assets” from the user, the transmission destination notifying means 313 causes the destination information (virtual) of the accounting virtual server 3 even when the virtual server 3 is communicably connected to the public communication line 200. Notifying the user terminal 1 of the asset payout source).
The means 313 notifies the asset storage server 4 that the user has requested to pay out the virtual asset when the notification of the destination information of the cash receipt/delivery virtual server 3 to the user terminal 1 is completed.

The virtual asset receiving unit 314 receives the virtual asset VP from the terminal 1 when the user terminal 1 specifies the destination information and is connected for communication.
The virtual asset transfer means 315 transfers the virtual asset VP received by the receiving means 314 to the asset storage server 4.

When the virtual asset is sent from the asset storage server 4, the virtual asset delivery means 316 transfers (delivers) the virtual asset to the user terminal 1.
It should be noted that, when the transmission of the virtual asset to the user terminal 1 is completed, the virtual asset delivery means 316 notifies the token server 5 that the delivery of the virtual asset to the user is completed.

Next, the electrical configuration of the asset storage server 4 will be described.
FIG. 6 is a block diagram showing an electrical configuration of the asset storage server 4 according to this embodiment.
The configuration of the asset storage server 4 is the same as that of each of the servers 2 and 3 described above except the logical means realized by the control unit.
The control unit 41 of the asset storage server 4 realizes a virtual asset storage means 411, a storage completion notification means 412, and a virtual asset spending means 413.

The virtual asset storage unit 411 writes the virtual asset transmitted from the cashier virtual server 3 in the storage unit 42. This completes the storage of virtual assets in the asset storage server 4, which is the ultimate depositor of virtual assets.
The storage completion notifying means 412 notifies the cash virtual server 3 and the token server 5 that “writing of the virtual asset VP is completed”.

When the virtual asset spending means 413 is informed by the cashier virtual server 3 that the user has “wish to pay out virtual assets”, the virtual asset spending means 413 sends (spending) the virtual virtual asset VP owned by the user to the cashier virtual server 3. ..

Next, the electrical configuration of the token server 5 will be described.
FIG. 7 is a block diagram showing the electrical configuration of the token server 5 according to this embodiment.
The configuration of the token server 5 is the same as that of each of the above-mentioned servers 2, 3 and 4 except for the logical means realized by the control unit.
The control unit 51 of the token server 5 realizes an original token issuing means 511, an original token granting means 512 and an original token stripping means 513.

The original token issuing means 511 is means for issuing (generating) the original token OT.
The “original token” here refers to a token originally issued by the virtual asset deposit system 100.
In this example, the original token OT is a special token given to the user who deposits the virtual asset.

When the asset management server 4 notifies that the writing of the virtual asset is completed from the user terminal 1, the original token assigning unit 512 assigns (transmits) the original token OT to the user terminal 1.
In the virtual asset deposit system 100 of the present application, (1) the original token OT given to the user is taken to the user terminal 1 side and stored in the same terminal 1, or (2) the original token OT given to the user. It may be configured such that the user can select whether to deposit the token on the token server 5 side instead of the user terminal 1 side.

The original token depriving means 513 receives the original token OT transmitted from the user terminal 1, after being notified by the cash-receipt/disbursement virtual server 3 that “payment of virtual assets has been completed” to the user terminal 1. As a result, the original token is stripped from the user terminal 1.
Further, when the original token stripping unit 513 receives the original token from the user terminal, it notifies the cash virtual server 3 that the stripping of the original token is completed.

Next, the operation of the virtual asset deposit system 100 according to this embodiment will be described.

[Operation: Virtual asset deposit (import)]
Here, after the user has registered the mail account and password on the user management server 2 by the operation of the user, the virtual asset is deposited from the user terminal 1 side to the asset storage server 4 via the cashier virtual server 3, so that the original The operation when the token is given to the user terminal 1 will be described.

In FIG. 14 and step S101, the user terminal 1 first displays the user registration screen (FIG. 8) in response to the user's input specifying the URL of the user management server 2.
Further, in step S102 of FIG. 14, the terminal 1 transmits the mail address and the password input by the user via the screen of FIG. 8 to the user management server 2.

In FIG. 14 and step S103, the user management server 2 performs user registration by writing the mail address and password transmitted from the terminal 1 in the user information 221 (FIG. 4).
Then, the user management server 2 notifies the cashier virtual server 3 that the user registration is completed. When executing the user registration completion notification, the user management server 2 transmits the user-registered mail address to the cashier virtual server 3.

In FIG. 14 and step S104, the virtual server 3 receives the notification that the user registration is completed from the user management server 2, and stores the mail address received from the server 2 when the completion notification is made.
Then, in step S105, the receipt/payment virtual server 3 "connects the server 3 itself to the public communication line 200 in a communicable manner" in response to the notification of the completion of the user registration.

Subsequently, in step S106, the server 3 notifies the user terminal 1 of the destination information (transmission destination of the virtual asset) of the accounting virtual server 3. The notification is sent to the user's email address.
As the above-mentioned destination information, the IP address assigned to the receipt/payment virtual server 3 or the URL designating the same server 3 is used.

In step S107, the user terminal 1 transmits the virtual assets stored in the terminal 1 to the cashier virtual server 3 in order to deposit the virtual assets held by the user.
In the present system 100, the asset storage server 4 is used as the final storage destination of virtual assets, but since the server 4 is not connected to the public communication line 200, the server 4 directly stores virtual assets from the user terminal 1. It cannot be received.
Therefore, in the present system 100, the virtual cash server 3 is provided as a “mediation server” that receives virtual assets from the user terminal 1 and transfers them to the asset storage server 4.
That is, when viewed from the user terminal 1, the receipt/payment virtual server 3 is a direct (primary) destination of the virtual asset.

In step S108, the cash virtual server 3 temporarily receives the virtual asset transmitted from the user terminal 1 via the public communication line 200.
Subsequently, in step S109, the server 3 transfers the previously received virtual asset to the asset storage server 4, which is the final storage destination.

In step S110, the asset storage server 4 stores the virtual asset transmitted from the cashier virtual server 3. This completes the storage of virtual assets at the final depositor of virtual assets in the system 100.
When the asset storage server 4 completes the writing (accommodation) of the virtual currency to the storage unit 42, the asset storage server 4 notifies the cash virtual server 3 and the token server 5 that "the virtual asset has been written".

In step S111, when the asset management server 4 notifies that the writing of the virtual asset is completed, the token server 5 adds (transmits) the original token to the user terminal 1.
The user terminal 1 writes the original token OT transmitted from the token server 5 in the storage unit 12.

Further, when the asset management server 4 notifies that the virtual asset writing is completed in step S112, the cash virtual server 3 stops (disconnects) the communication connection of the cash virtual server 3 to the public communication line 200.
In this example, each time the communication connection of the cash virtual server 3 to the public communication line 200 is disconnected, new address information is replaced with the address information (eg, IP address) currently given to the cash virtual server 3. Are given to the server 3.
With the above, a series of operations for depositing a virtual asset from the user terminal 1 side to the asset storage server 4 via the cashier virtual server 3 is completed.

[Operation: Virtual asset withdrawal (export)]
Next, the virtual asset VP deposited in response to a request from the user is paid out from the asset management server 4 to the user terminal 1 via the accounting virtual server 3, and the token server 5 is the original held by the user terminal 1. The operation when depriving the token will be described.
When the user desires to pay out (return) the deposited virtual asset, the user transmits it to the business operator who operates the virtual asset deposit system 100 by verbal communication, electronic mail, telephone or the like.

When the user requests to pay out the virtual assets in this way, first, in step S201 of FIG. 15, the virtual server 3 for cash receipt/delivery connects itself to the public communication line 200 in a communicable manner.
Subsequently, in step S202, the cashier virtual server 3 notifies the user terminal 1 of the destination information (IP address in this example) of the server 3.

When the notification of the destination information of the server 3 to the user terminal 1 is completed, the accounting virtual server 3 notifies the asset storage server 4 that the user has requested to pay out the virtual asset.
Then, in step S<b>203, the asset storage server 4 transmits (expends) the virtual asset VP owned by the user who requested the withdrawal to the cashier virtual server 3.

Further, in step S204, the cash virtual server 3 transfers (pays out) the virtual asset transmitted from the asset storage server 4 to the user terminal 1.
When the virtual cash server 3 completes the transmission of the virtual property VP to the user terminal 1, the cash server 3 notifies the token server 5 that "the payment of the virtual property is completed" to the user.

In step S205, the user terminal 1 receives (receives) the virtual asset transmitted (paid) from the cash accounting virtual server 3 and stores the virtual asset in the storage unit 12.
Subsequently, in S206, the user terminal 1 transmits the original token OT to the token server 5.

In S207, the token server 5 receives the original token transmitted from the user terminal 1.
As a result, the original token OT is returned (deprived) to the token server 5 in exchange for the payment of virtual assets.
When the token server 5 receives the original token from the user terminal 1, the token server 5 notifies the cash virtual server 3 that the deprivation of the original token is completed.

Then, in S208, the accounting virtual server 3 stops (disconnects) the communication connection of the server 3 to the public communication line 200 in response to the notification of "completion of deprivation of the original token" from the token server 5.
When the communication connection of the cashier virtual server 3 to the public communication line 200 is disconnected, the destination information (IP address in this example) given to the server 3 is changed.
With the above, a series of operations for paying out virtual assets from the asset storage server 4 to the user terminal 1 via the cashier virtual server 3 is completed.

As described above, according to the virtual asset deposit system 100 according to the present embodiment, when the deposit of the virtual asset from the user or the withdrawal of the virtual asset to the user is completed, the accounting virtual server 3 is set to the external environment (virtual asset). In order to cut off the access to the server 3 from outside the depositing system 100), the communication connection to the public communication line 200 of its own is immediately cut off.
That is, the accounting virtual server 3 that directly sends and receives virtual assets to and from the user terminal 1 except for an extremely short time during which virtual assets are imported (deposited) or exported (paid out) with the user terminal 1. , Is completely cut off from the public communication line 200.
In this way, by interrupting (stopping) the communication connection function after completing the deposit or withdrawal of virtual assets, it is possible to safely save the important virtual assets deposited by the user from the threat of hacking.

As the user terminal 1, not only a stationary type/notebook type PC (Personal Computer) but also a portable multifunctional electronic device such as a smartphone, a tablet terminal, or a wristwatch type terminal can be adopted.
Although a considerable processing load is imposed on the CPU when using the deposit/withdrawal function of the virtual asset VP, the processing performance of the smartphone or tablet terminal is dramatically improving at a rapid pace, and transmission/reception of the virtual asset VP is performed. A comfortable operation speed can be ensured even when processing is executed.
In addition, since the portable multi-function electronic device has a merit of portability, it is possible to easily use the virtual asset deposit service when the user finds it convenient.

[Modification: Contract server]
In the above-described embodiment, when the deposit contract is exchanged between the business operator of the virtual asset deposit system 100 and the user, a contract procedure written in a paper medium is assumed.
However, if the deposit contract can be exchanged by an electromagnetic method, it is assumed that the deposit process of the virtual asset can be carried out more smoothly.
In order to realize such a computerization of the deposit contract, in the present system 100A, as shown in FIG. 16, a contract server 6 is further installed in addition to the system configuration of FIG.

The electrical configuration of the contract server 6 will be described below.
FIG. 18 is a block diagram showing an electrical configuration of the contract server 6 according to this embodiment.
The configuration of the contract server 6 is the same as that of each of the servers 2 to 5 described above, except for the logical means realized by the control unit.
In the control unit 61 of the contract server 6, a contract document transmitting unit 611 and an agreed contract document receiving unit 612 are realized.

In this modification, when the user identification means 311 of the cashier virtual server 3 receives the user registration completion notification and the mail address of the user terminal 1A from the user management server 2, the user notification means 311 sends the completion notification and the mail address to the contract server 6. Also send (share) to.
When the contract sending means 611 shown in FIG. 18 receives the user registration completion notification and the mail address of the user terminal 1 from the cashier virtual server 3, the contract sending means 611 stores the mail address and specifies the same mail address to specify the user terminal. 1A (FIG. 17) sends a standard form (deposited electronic data) of a virtual asset deposit contract.

The agreed contract receiving means 612 receives from the user terminal 1A the deposit contract in which the user has agreed on the contract content and filled in the necessary items (user agreed consent contract), and “deposit contract completed”. This is notified to the cashier virtual server 3.
Note that in the user terminal 1A, the contracting means 117 shown in FIG. 17 fills in the virtual asset deposit contract received from the contract server 6 via the input unit 14, and the deposit contract agreed by the user is entered in the contract server. Send to 6.

Upon receipt of the notification that the deposit contract is completed from the contract server 6, the communication connection management means 312 of the cashier virtual server 3 connects the cashier virtual server 3 to the public communication line 200 in a communicable manner.
The destination notifying means 313 of the server 3 notifies the user terminal 1A of the destination information of the virtual cash server 3 when the completion of the deposit contract is notified and the virtual cash server 3 is communicably connected to the public communication line 200. Notice.

Next, an operation when depositing a virtual asset in the virtual asset depositing system 100A according to the present modification will be described.
The operation of each component when depositing a virtual asset in the system 100A is basically the same as the operation of the virtual asset depositing system 100 of the first embodiment shown in FIG.
However, in the virtual asset deposit system 100A, even if user registration by the user management server 2 (step S103 in FIG. 14) is completed as in the first embodiment, notification of destination information from the cashier virtual server 3 to the user terminal (see FIG. 14). -Step S106) is not performed immediately.
In this modified example, after the user registration is completed, a deposit contract is exchanged between the operator of the virtual asset deposit system 100A and the user using the user terminal 1A and the contract server 6.

In the virtual asset deposit system 100A, when the user registration by the user management server 2 (step S103 in FIG. 19) is completed according to the same procedure as in the first embodiment, the user registration is performed from the server 2 to the cashier virtual server 3 in step S104. The completion notice and the mail address of the user terminal 1A are transmitted.
Then, the cashier virtual server 3 in the present modification sends (shares) the user registration completion notification received from the user management server 2 and the mail address of the user terminal 1A to the contract server 6 as well.

Then, the contract server 6 stores the mail address of the user received from the cashier virtual server 3, and specifies the same mail address in step S121 to specify the virtual mail deposit contract for the user terminal 1A (unfilled state). Electronic data) of.

In step S122, the user terminal 1A accepts the user input (entry) to the virtual asset deposit contract received from the contract server 6 via the input unit 14.
Also, the terminal 1A transmits a deposit contract with the user's consent to the contract server 6.

The contract server 6 receives the deposit contract with the user agreement from the user terminal 1A, and then notifies the cashier virtual server 3 that the deposit contract is completed in step S123.
Then, the receipt/payment virtual server 3 communicatively connects itself (the relevant server 3) to the public communication line 200 in response to the receipt of the notice of completion of the deposit contract.
Subsequently, in step S106 of FIG. 19, the cashier virtual server 3 notifies the user terminal 1A of the destination information of the cashier virtual server 3 (the transmission destination of the virtual asset).

The operation of each component after step S106 in FIG. 19 is the same as the operation of the first embodiment shown in FIG.
That is, the user terminal 1A sends (deposits) the virtual asset to the server 3 by designating the destination information notified from the cash virtual server 3, and the virtual asset is transferred from the cash virtual server 3 to the asset storage server 4. When the writing (accommodation) of the virtual assets in 4 is completed, the token server 5 adds the original token to the user terminal 1A, and the virtual cash server 3 disconnects the communication connection of the server 3. After disconnecting the communication, the destination information of the virtual server 3 is changed.
With the above, a series of operations for depositing the virtual asset from the user terminal 1A to the asset storage server 4 in the modification is completed.

By providing the contract server 6 and transmitting/receiving the deposit contract to/from the user terminal 1 by an electromagnetic method, the virtual asset can be more smoothly transferred before the virtual asset deposit is executed from the user terminal 1 to the accounting virtual server 3. It is possible to exchange deposit contracts.
By doing so, the virtual assets can be deposited under the mutually agreed deposit contract.

Although the present invention has been described with reference to the exemplary embodiments, the present invention is not limited to the above exemplary embodiments. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present invention without departing from the spirit of the present invention.

1 user terminal 2 user management server 3 cashier virtual server 4 asset storage server 5 token server 6 contract server 100 virtual asset deposit system 200 public communication line

Claims (5)

A virtual asset deposit system for accepting deposit of virtual assets owned by a user who has completed user registration,
A plurality of user terminals that are terminals owned by individual users and that store virtual assets owned by each user,
A user management server that is capable of communicating with each user terminal via a public communication line and whose IP address is always open to the public;
A server that is a direct destination of virtual assets when viewed from the user terminal, and can communicate with the public communication line only when receiving virtual currency from the user terminal or sending virtual currency to the user terminal An accounting virtual server connected to
A server that is the final storage destination of virtual assets, and is connected to the cash accounting virtual server so that it can communicate, but not connected to a public communication line.
Is equipped with

Each individual user terminal
A user registration application means for transmitting the mail address used by the user of the user terminal and the password unique to the user to the user management server when the user inputs a password unique to the user.
When the information of the destination is notified from the cash accounting virtual server, a virtual asset transmitting means for transmitting the virtual currency stored in the user terminal to the cash accounting virtual server after the communication destination is designated and connected.
Have

The user management server is
User registration means for registering the email address and password sent from the user terminal, notifying the cashier virtual server that the user registration has been completed, and transmitting the registered mail address to the cashier virtual server.
Have

The cashier virtual server is
Communication connection management means for connecting or disconnecting the communication connection to the public communication line of the cashier virtual server,
When the communication connection management means communicatively connects the accounting virtual server to the public communication line in response to the notification that the user registration is completed, the destination information of the accounting virtual server is sent to the user terminal as the destination of the virtual asset. Destination notification means to notify the email address,
A virtual asset receiving means for receiving a virtual asset from the user terminal when the user terminal designates destination information and makes a communication connection,
Virtual asset transfer means for transferring the virtual asset received by the virtual asset receiving means to the asset storage server,
Have

The asset storage server is
A virtual asset storage means for writing the virtual asset transmitted from the cashier virtual server to the storage unit,
Storage completion notifying means for notifying the cash receipt virtual server that the writing of the virtual asset is completed,
Have

The communication connection management means of the cash accounting virtual server is configured to disconnect the communication connection to the public communication line of the cash accounting virtual server when notified that the writing of the virtual asset is completed from the asset storage server. Characteristic virtual asset deposit system. The virtual asset deposit system according to claim 1, wherein
A token server which is capable of communicating with each user terminal via a public communication line and whose IP address is always open to the public;

The asset storage server is
The storage completion notifying means for notifying the token server that the writing of the virtual asset is completed,
Have

The token server is
When the asset management server notifies that the writing of the virtual asset from the user terminal is completed, the virtual asset depositing system has an original token assigning means for assigning the original token originally issued to the user terminal. A virtual asset deposit system characterized by being configured.
The virtual asset deposit system according to claim 1 or 2, wherein
If the user requests to pay out virtual assets,

The user terminal is
Token holding means for transmitting the original token given from the token server to the token server when receiving the virtual asset transferred from the cashier virtual server,
Have

The cash accounting virtual server, the communication connection management means for communicatively connecting the cash accounting virtual server to a public communication line,
The destination notifying means for notifying the user terminal of the destination information of the cash receipt/delivery virtual server and notifying the asset storage server that the user wishes to pay out the virtual asset when the notification of the destination information to the user terminal is completed When,
When a virtual asset is transmitted from the asset storage server, a virtual asset delivery means for transferring the virtual asset to the user terminal,
Have

The asset storage server is
When the user notifies that there is a desire to pay out the virtual asset, the virtual asset spending means for transmitting the virtual asset owned by the user to the accounting virtual server,
Have

The token server is
When receiving the original token sent from the user terminal and the original token from the user terminal, the original token stripping means for notifying the cash virtual server that the stripping of the original token is completed,
Have

The communication connection management means of the cash accounting virtual server is configured to disconnect the communication connection to the public communication line of the cash accounting virtual server when the token server notifies that the deprivation of the original token is completed. A virtual asset deposit system. The virtual asset deposit system according to any one of claims 1 to 3,
A contract server that sends and receives deposit contracts to and from the user terminal by an electromagnetic method,
Further equipped with,

The user terminal is
A contract means for accepting user input to the virtual asset deposit contract received from the contract server and transmitting the deposit contract agreed by the user to the contract server,
Have

The cashier virtual server is
User registration means for further transmitting the user registration completion notification and the same mail address to the contract server when the user registration completion notification and the mail address of the user terminal are received from the user management server,
Communication connection management means for communicatively connecting the accounting virtual server to a public communication line in response to receipt of a deposit contract completion notification,
Have

The contract server is
A contract document sending unit that stores the mail address received from the cashier virtual server and sends the fixed form of the virtual asset deposit contract to the user terminal by designating the mail address.
When a deposit agreement with the user consent has been received from the user terminal, an agreed contract receiving means for notifying the cashier virtual server that the deposit agreement is completed,
Have

The destination notification means of the cashier virtual server is
When the completion of the deposit contract is notified and the cash accounting virtual server is communicatively connected to the public communication line, the destination information of the cash accounting virtual server is notified to the user terminal. Virtual asset deposit system.
The virtual asset deposit system according to any one of claims 1 to 4,
In the cashier virtual server,
Every time the communication connection management means disconnects the communication connection to the public communication line of the accounting virtual server, new destination information is assigned to the accounting virtual server instead of the destination information currently assigned to the accounting virtual server. A virtual asset deposit system characterized by being configured as described below.

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