KR20190024601A - System and method for trading virtual currency - Google Patents

Abstract

The present invention discloses a system for trading virtual money. More specifically, the present invention relates to a system and method for trading virtual money capable of increasing use of virtual money by the public for the virtual money based on an encryption technique such as Blockchain and enabling simple and fast remittance and transaction based on URL without recognition of a public address between parties. According to an embodiment of the present invention, the system and method have the effect of making the virtual money easy to use like real money by verifying transaction information of the virtual money having the Blockchain through a server and enabling transfer, remittance, and payment of the virtual money by using only a private key provided in the URL through a method of confirming the transaction according to whether a verification server is authenticated.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a virtual currency trading system,

The present invention relates to a virtual currency trading system, and more particularly, to a virtual currency based on a cryptographic technique such as a block chain, which increases the use thereof by the general public, and facilitates quick and quick remittance and transaction without a public address recognition between the parties And more particularly, to a virtual currency trading system and method.

Recently, with the emergence of encryption technologies such as block chains, interest in virtual money based on encryption technology is increasing. One of the most notable virtualization closures is Bitcoin, and also Ethereum, Ripple, Dash, and Litecoin are in preparation or already in service.

Previously, a wide variety of cryptographic technology-based currencies have been used by Web service providers under the name "cache". Generally, in electronic commerce, electronic money, which is the basis of transactions, is widely used online. Also, credit cards used as payment means in electronic commerce are also electronicized and virtualized, and means for making credit transactions without paying real money immediately , The circulation structure of credit card companies, banks, and merchants is completed and is included in the category of electronic money.

Therefore, it is considered that the reason why the virtual money, which is a type of the existing electronic money, is suddenly attracted is caused by the difference in the operation method. The virtual money is made by a distributed network time stamp server based on a peer-to-peer network (P2P) in the transaction mode, transactions of the public key cryptosystem are performed, It is possible to operate without a central authority or a bank, unlike existing real money, and there is a considerable difference from the centralized conventional electronic money.

This virtual money transfer system is advantageous in that the risk is extremely low as well as the fee for use is low because the system can be used even without information such as a card number, expiration date, and CCV number necessary for payment of a credit card.

In the case of Bitcoin, transaction details between the parties are stored in an electronic wallet of a block chain as a distributed ledger and stored and collected.

The electronic wallet can be created by installing the virtual money client program provided by the developer of the virtual money on the terminal or by subscribing to a virtual money exchange such as 'www.bithumb.com' . The generated electronic wallet is a kind of virtual money account. The creation of the electronic wallet can be made up of a combination of numbers and English uppercase and lowercase letters such as a public address of 32 bytes or more, and '16YxMgbMydAtgFWQB5', 'jP8rh9auwpqqthJY '.

In the transactions between the parties using the electronic wallet, it is necessary to recognize the address of the electronic wallet as described above, and since transactions and remittances are possible, it is difficult for general users to use them conveniently and quickly.

Also, in case of Bitcoin, although it can be said that it is a virtual money which is attracted unprecedented attention, there are problems of popularization and reflection of real life. Actually, in domestic situation, only transactions for buying and selling virtual money for investment purpose are activated, and it is not used in cash in various fields. Thus, the prospect of such virtual money is diverse.

Nonetheless, virtual money has five characteristics: transparency, invariance, low commission, borderless, and fast speed. Transparency means that anyone can access the block-chain network, so that it is possible to check the transmission and transaction history of the block in which the transaction is made. The invariance is that the transaction can not be canceled and no one can interfere with the transaction. Virtualization Indicates that fees are relatively inexpensive as there is no separate fee other than the commission from the closure. In addition, Borderless is able to easily send money to any country in the world, just as it is in the next room, and the speed of transfer is almost instantaneously with the smooth and transparent nature of the block chain and usually takes a few minutes It can be confirmed in the inside.

Patent Registration No. 10-1628007 (Publication Date: 16.06.03.) Patent Registration No. 10-1628624 (Publication Date: 16.06.01.)

The present invention relates to a block chain-based virtual currency, which improves the inconvenience existing in inter-personal transactions, and thus enables a user to conveniently use virtual money, such as real money or conventional electronic money, There is a challenge in providing a trading system and method.

According to an embodiment of the present invention, there is provided a virtual currency trading system including a personal authentication server for distributing a private key to one or more user terminals and generating one or more electronic wallets based on the private key, A verification server for verifying the validity of the transaction when a transaction between a payment provider and a recipient via the electronic wallet held by the user is requested from the user terminal, a money transaction server for confirming the progress and completion of the transaction of the validated transaction, And a currency exchange server for converting the value of the real currency to the virtual currency according to the currently announced exchange rate and performing the exchange procedure between the requested currency.

The personal authentication server includes a member management unit for performing a member registration, a login or a member withdrawal procedure, a private key generation unit for issuing a private key to a registered member, an information management unit for managing a private key and an electronic wallet for each member, And a private key authentication unit for performing an authentication procedure with reference to a database upon receipt of a transaction request from the user terminal.

Wherein the verification server comprises: a transaction verification unit for verifying a transaction history according to whether or not the electronic wallet is held and the balance of the electronic wallet corresponds to a payout amount at the time of a transaction request; And a transaction verification unit for verifying whether the transaction is normal or not by comparing the transaction information generated according to the transaction information.

Wherein the money transaction server comprises: a transaction confirmation unit for confirming whether the transaction is completed according to information transmitted from the personal authentication server and the verification server; and a notification unit for notifying the user terminal of the completion of the transaction confirmed by the transaction confirmation unit And the like.

The exchange server includes a conversion amount calculation unit for calculating an amount of the real money according to the exchange rate currently being received when the user terminal is requested to convert a certain amount of the virtual money to a specific physical currency from the user terminal, And a transaction information generating unit for requesting the electronic wallet to subtract a virtual currency corresponding to the calculated conversion amount and generating transaction information on the converted real money.

In the electronic wallet, different public addresses may be set depending on the type of the virtual money.

According to another aspect of the present invention, there is provided a virtual currency trading method including the steps of distributing a private key to one or more user terminals, Generating and storing one or more electronic wallets based on the private key based on a request from the user terminal; and if the validation server requests a transaction between a payor and a receiver via the electronic wallet held by the user from the user terminal, And confirming the proceeding and completion of the transaction of the validated transaction of the money transaction server.

After the step of creating and storing the electronic wallet, at the request of the user terminal, the exchange server converts the value of the real currency against the virtual currency according to the exchange rate currently notified, and performs the requested exchange of currency Step < / RTI >

According to the embodiment of the present invention, a transaction is authenticated through a server for verifying transaction transaction information of a virtual currency having a block chain, and a private key The virtual money can be transferred, remitted, and settled only by using the virtual money.

1 is a diagram illustrating an overall structure of a virtual currency transaction system according to an embodiment of the present invention.
2 is a diagram illustrating a structure of a personal authentication server of a virtual currency transaction system according to an embodiment of the present invention.
3 is a diagram illustrating a structure of a verification server of a virtual currency transaction system according to an embodiment of the present invention.
4 is a diagram illustrating a structure of a money transaction server of a virtual money transaction system according to an embodiment of the present invention.
5 is a diagram illustrating a structure of a currency exchange server of a virtual currency transaction system according to an embodiment of the present invention.
FIG. 6 is a diagram illustrating a virtual currency trading method by a virtual currency trading system according to an embodiment of the present invention.

Prior to the description, when an element is referred to as being "comprising" or "including" an element throughout the specification, it is to be understood that the element may be further comprised of other elements . The term " Unit ... " and "Module" in the specification mean a unit for processing at least one function or operation, And a combination of software.

Furthermore, the term "embodiment" is used herein to mean serving as an example, instance, or illustration, but the subject matter of the invention is not limited by such example. It is also to be understood that other similar terms are used, such as " comprising, "" including, "and" having, " Is used generically in a manner similar to the term "Comprising. &Quot;

The various techniques described herein may be implemented with hardware or software, or may be implemented with a combination of both, where appropriate. As used herein, terms such as "Unit," "Module," and "System" are likewise equally applicable to computer-related entities such as a combination of hardware, It can be handled as equivalent to the software at the time of execution. For example, a program module may be composed of one component or a combination of two or more components. Further, in the present invention, both the application program and the hardware executed in the server or the terminal may be configured on a module-by-module basis, and may be recorded in one physical memory or distributed among two or more memories and recording media.

In addition, the term Virtual Currency, which is a term described throughout the specification, is a concept against real or nominal currency (Fiat Currency), and includes electronic currencies (Electronic Currency) and Crypto Currency .

Also, an electronic wallet described throughout the specification refers to an electronic account for storing virtual money.

A virtual money transaction system and method according to an embodiment of the present invention will be described below with reference to the drawings.

1 is a diagram illustrating an overall structure of a virtual currency transaction system according to an embodiment of the present invention.

1, a virtual currency trading system 100 according to an embodiment of the present invention includes a personal authentication server (not shown) that distributes a private key to one or more user terminals 10 and creates one or more electronic wallets based on the private key 200, a verification server 300 for verifying the validity of a transaction when a transaction between a payment provider and a receiver is requested via the electronic wallet held by the user from the user terminal 10, And a currency exchange server 500 for converting the value of the real currency to the virtual currency according to the currently announced exchange rate and performing the exchange procedure between the requested currency.

The virtual currency trading system 100 of the present invention may include a separate database server or a database built in each server. The database 600 may include a member DB 610, a non-member DB 620, A member electronic wallet DB 630, a non-member electronic wallet DB 640, and a currency exchange transaction DB 650.

The user terminal 10 is a computing device such as a desktop PC, a laptop PC, a smart phone or a tablet PC possessed by a user who wishes to use the virtual currency trading system 100 of the present invention, An application program for issuing a member registration and a private key and requesting a transaction of a virtual currency such as payment and receipt of a virtual currency using an electronic wallet according to the virtual currency account can be installed and executed.

The personal authentication server 200 generates and distributes a private key for a member in a predetermined method after the member authentication is normally performed according to a request of the user terminal 10, stores the private key in the database 600, It is possible to verify that the transaction is a normal transaction by comparing the distributed private key with the private key stored in the database 600. [

The verification server 300 can verify whether the transaction based on the transaction request for the virtual currency between the two users, that is, the payment provider and the receiver, mediating the virtual currency of the electronic purse is valid or valid.

The verification server 300 can verify whether or not the requested transaction can be normally performed with respect to the presence or absence of the electronic purse of the payer and the recipient and the virtual money balance of the electronic purse of the transaction party, And the transaction information is compared with the generated transaction information.

In addition, the verification server 300 can check whether the current transaction is a transaction through the same virtual currency and whether the public address of the electronic wallet is changed.

The money transaction server 400 may perform a procedure for confirming whether the last transaction is proceeded to the member based on the information transmitted from the personal authentication server 200 and the verification server 300. The transaction is confirmed whether it is a normal transaction through the messenger or the mobile terminal entered in the private key of the member for money transaction.

The currency exchange server 500 can perform exchange between the virtual currency and the real currency, not the virtual closed-circuit transaction. The transaction mode of the exchange server 500 is the same as that between the sender and the receiver, but the exchange rate and the fee for using the exchange server 500 may be provided to the user.

The exchange server 500 performs the exchange procedure according to the current exchange rate between the virtual currency to be traded and the object currency of the object of exchange.

According to the above-described structure, the virtual currency trading system according to the embodiment of the present invention can easily trade various virtual currencies such as bit coin and etherium according to transaction authentication and verification based on a private key and an electronic wallet.

Hereinafter, the structure of each server constituting a virtual currency trading system according to an embodiment of the present invention will be described in detail with reference to the drawings.

Personal authentication server

2 is a diagram illustrating a structure of a personal authentication server of a virtual currency transaction system according to an embodiment of the present invention.

Referring to FIG. 2, the personal authentication server 200 of the virtual money transaction system according to the embodiment of the present invention includes a member management unit 210 for performing a member registration, a login, or a member withdrawal procedure, An information management unit 230 for managing a private key and an electronic wallet for each member, a private key authentication unit 230 for performing an authentication procedure with reference to a database upon receipt of a transaction request from the user terminal 10, (240).

The personal authentication server 200 plays a role of distributing a private key to one or more user terminals 10, and can generate and distribute a private key after member authentication by a predetermined method. The generated private key may be stored in the member DB 610.

The member management unit 210 may perform a member registration procedure at the request of the user terminal 10, log in the registered user, and authenticate the user.

In addition, the member management unit 210 may perform a management procedure such as updating membership information, withdrawing membership, and the like, at the request of the user terminal 10. [

The private key generation unit 220 can generate and distribute a private key for a user who is member-authenticated by the member management unit 210. [

The above-described private key may include member information including an account and a password, a user's e-mail address, a messenger, a password, a telephone number of a mobile terminal, an address, etc., and may be stored in the member DB 610 for each member have.

Also, the private key may be stored individually in the server, and the user terminal 10 and the personal authentication server 200 may form a pair and the authentication may be completed when the same value is derived.

After the member authentication, the information management unit 230 can create an electronic wallet of a transaction or a virtual currency held and store it in the member electronic wallet DB 630. Here, the electronic purse can be created for various types of virtual money currently registered in the virtual currency trading system of the present invention regardless of whether the virtual money is owned or not.

When the private key authenticating unit 240 receives the transaction request via the virtual currency of the electronic wallet held from the user terminal 10, the private key authenticating unit 240 can verify the distributed private key to certify that it is a normal request.

Typically, when trading a virtual currency, the payer selects the type of virtual currency to be traded through his / her user terminal, checks the public address of his or her electronic wallet for the virtual currency, And the public address is checked. In addition, the payer enters the amount of the virtual currency to be traded, and then proceeds to transfer the virtual currency.

At this time, when the payer sends the virtual money to the receiver in the above-described manner, the public address may be erroneously recognized, or the virtual money may be erroneously selected due to erroneous transactions.

As an example, there may arise a problem of transferring a new version of a bit coin (BTC) public address to a new version bit coin cache (BTH) public address, which can be recovered through a complicated process. However, It takes a considerable amount of time to recover, which is a cause of lowering the reliability of the virtual currency remittance.

In order to solve this problem, the personal authentication unit 340 sets the public address to be divided into the member's private key by each virtual currency type, thereby reducing the process of recognizing the public address by only selecting the virtual money of the payer Minimize false transactions. Here, since the public address has the form of a URL, the payer can realize remittance through the public address of the receiver.

Accordingly, the virtual currency transaction system according to the embodiment of the present invention can realize the virtual currency transaction only by the payment person's private key, the virtual money selection process, the receiver's personal key, the virtual money selection process, and the virtual money transfer process at the time of remittance.

Meanwhile, in the personal authentication server 200, the confirmation procedure between the members can be performed using the identification number (ID) and name included in the private key when the members are exchanged. The member can input personal information or the like to the personal authentication server 200 in a predetermined manner to distribute the private key and generate the electronic wallet. The generated private key may be stored in the member DB 610 in the server.

Here, the distributed private key can be used for authentication of private key, exchange of real-time virtual currency, and authentication of member transactions while passing through a verification server, a currency exchange server, and a currency transaction server in a virtual currency transaction, And may be used to carry out initial approvals for

In the case of a virtual money transaction between a member and a non-member, the approval of the personal authentication server 200 may be requested twice. In the first approval step, the presence or absence of the public address of the virtual money is verified and the certainty of the transaction is verified. In the second step, the transaction details of the non-member are classified and the transactions are transmitted to the non-member DB 620 and the non- There is one more step to save the history. The non-members including the transaction details can be transferred and stored in the member DB 610 as they are when converted to a member.

The transactions between the virtual currency and the real currency can be stored in the currency exchange transaction DB 650.

Hereinafter, a structure of a verification server of a virtual currency trading system according to an embodiment of the present invention will be described with reference to the drawings.

Verification server

3 is a diagram illustrating a structure of a verification server of a virtual currency transaction system according to an embodiment of the present invention.

Referring to FIG. 3, the verification server 300 of the virtual currency trading system of the present invention verifies transaction details according to whether a corresponding electronic wallet is held or whether the balance of the electronic wallet corresponds to a payout amount at the time of a transaction request And a transaction verifier 320 for verifying whether the transaction is a normal transaction by comparing the transaction verifier 310 and the transaction details with the transaction information generated according to the transaction of the virtual currency.

The transaction verification unit 310 can verify the transaction information according to the inter-member transaction or the flower-non-member transaction occurrence. The payment provider can select his or her public address in the electronic wallet for the virtual currency based transaction, input the payment amount, and select the public address of the recipient to request the transaction.

 The payer signing with his / her private key generates transaction information for the corresponding virtual currency.

 The transaction verification unit 320 may compare the transaction details of the transaction request with the transaction information to verify that the transaction is valid, and may transmit the result to the money transaction server 400. [

Therefore, at the time of the transaction of the virtual currency among the members, the personal authentication server 200, the verification server 300, and the money exchange server 400 proceed in three steps in that order. At this time, only the movement of the virtual money provided from the distributed private key to the electronic wallet is approved.

In the case of a transaction between a member and a non-member other than a transaction between members, the personal authentication server 200, the verification server 300, the personal authentication server 200, the verification server 300, . In the case of a non-member, the verification server 300 receives the approval of the personal authentication server 200 twice, and transmits the contents of the storage transaction to the personal authentication server 200 again, DB (620 of FIG. 2), and accepts the transaction with the value of the non-member electronic wallet DB 630. [

On the other hand, since the electronic wallet address of the virtual currency can be continuously generated, the transaction using the changed electronic wallet is not valid, and the transaction is passed to the initial approval stage.

Hereinafter, the structure of the money transaction server of the virtual money transaction system according to the embodiment of the present invention will be described with reference to the drawings.

Currency trading server

4 is a diagram illustrating a structure of a money transaction server of a virtual money transaction system according to an embodiment of the present invention.

4, the money transaction server 400 of the virtual currency transaction system of the present invention includes a transaction confirmation unit 400 for confirming completion of a transaction procedure according to information transmitted from the personal authentication server 200 and the verification server 300, (410) and a notification unit (420) for transmitting a notification of the completion of the transaction procedure confirmed by the transaction confirmation unit (410) to the user terminal.

The money transaction server 400 of the present invention can play a role of confirming whether the last transaction is progressed based on the information transmitted through the personal authentication server 200 and the verification server 300. [

The transaction confirmation unit 410 receives the private key authentication result from the personal authentication server 200, receives the transaction verification result from the verification server 300, and confirms the party of the transaction and the transaction result.

The notification unit 420 can notify the transaction result through the URL and the application program when the transaction is completed through the information included in the private key of each member, that is, the messenger or the mobile terminal number. Accordingly, Can be confirmed.

As an example, the notification unit 420 may display the identification number (ID) and the name of the payer and the recipient through the URL or the application program of the mobile terminal, so that each member can check whether the transaction is normal.

The money transaction server 00 performs a procedure of finally approving all the transactions between the members, and the transactions made may be stored in the member DB (610 in FIG. 1) You can also check the list containing past transaction details.

Currency Exchange Server

5 is a diagram illustrating a structure of a currency exchange server of a virtual currency transaction system according to an embodiment of the present invention.

Referring to FIG. 5, the exchange server 500 of the virtual money transaction system according to the embodiment of the present invention receives a request for conversion of a certain amount of virtual money into a specific physical currency from the user terminal 10, A change amount calculation unit 510 for calculating the amount of the real money according to the conversion amount, a exchange rate setting unit 520 for providing the current exchange rate, a request for the subtraction of the virtual currency corresponding to the calculated conversion amount to the electronic wallet, And a transaction information generating unit 530 for generating transaction information on the real currency.

The currency exchange server 500 converts the value of the real-time appreciation currency and the real currency by referring to the exchange rate so as to perform the settlement between the virtual currency and the real currency or the nominal currency, have.

The currency exchange server 500 may provide a currency exchange service, a virtualization close exchange required between the provider and the recipient, and a currency exchange transaction between the currency and the virtualization close.

The conversion amount calculation unit 510 refers to the currency exchange transaction DB 650 including the purchase and sales details of the existing virtual money, and performs the exchange procedure based on the extracted data.

At this time, since the virtual currency is not the fixed exchange rate like the KRW-USD, the calculation method of the exchange rate is required. To this end, the exchange rate setting unit 520 may provide a method of calculating the reference value, inquire the amount of buying and selling at the time of the transaction of the virtual currency in the virtual currency exchange, and set the exchange criterion based on the inquiry .

The exchange rate setting unit 520 can calculate the exchange rate between the won and the virtualization close according to the current exchange rate, and display the exchange rate in seconds. Upon request of the user terminal 10, the exchange rate of the virtual currency to be purchased or sold, The exchange rate can be provided to the user.

The transaction information generating unit 530 may generate transaction information on the exchange transaction completed in the procedure and store the transaction information in the exchange transaction DB 650. [

In addition, in the virtualization closure exchange transaction, the exchange server 500 can provide the exchange fee and the exchange rate indication to the user through the URL or application program to the user terminal 10. [

In addition, the above-mentioned exchange transaction can be simple currency exchange, settlement and remittance to the generated electronic wallet. The result is stored in the exchange transaction DB 650, and is linked to the member DB (610 in FIG. 2) Can be searched and verified for their completed transactions.

When the exchange server 500 is used, the completion of the transaction, the transfer and the payment must be completed within the designated time, and the transaction is canceled when the time is exceeded. This is because the price fluctuation of the virtual currency is 24 hours, that is, it is infinite so as to minimize the loss of the difference due to the difference between the time when the exchange rate is calculated and the actual time of the transaction.

On the other hand, in the general transaction such as the remittance transaction as well as the above-mentioned exchange transaction, the transaction of the virtual currency can be made as a p2p (peer-to-peer) virtual money network. These virtual currencies are added to the public p2p list, which is a block chain in blocks where minerals are generated on average every 1 to 10 minutes in the network. The generation time of such a block may be different for each type of virtual money.

Depending on the distributed network, several blocks may be created at a similar time, but only the first generated block is included in the block chain and the rest are discarded. In this case, transactions of all virtual currencies in the generated block can be recorded in the most recently generated block at the same time as transactions of virtual currencies are made. The creation and transaction details of the block are transferred to and stored in all surrounding users (peers), the next block is created, the previous block can not be modified, and the miner to create a new block is a transaction And then the next block is generated.

The miner's block creation activity continues, and the miner who generates the block receives the virtual money as an incentive. As a result, the block chain includes all transaction history on the virtual money as a distribution ledger, and the system of virtual money is maintained by repeating this activity. As a result of the verification of the minors' blocks, the system that allows transactions without the authority of the central bank is maintained.

The virtual currency generated through the miner activity can be moved to the public address of each member's wallet, and the contents of the divided blocks can be stored separately in the exchange transaction DB and member DB, .

Hereinafter, a virtual currency trading method by a virtual currency trading system according to an embodiment of the present invention will be described with reference to the drawings. In the following description, the executing entity of each step will be a constituent part of the server and each server included in the above-described virtual currency trading system even if there is no separate description.

FIG. 6 is a diagram illustrating a virtual currency trading method by a virtual currency trading system according to an embodiment of the present invention.

Referring to FIG. 6, a virtual money transaction method according to the present invention includes distributing a private key to one or more user terminals (S100) Generating and storing one or more electronic wallets based on the key (S110); verifying the validity of the transaction when the validation server requests a transaction between the payee and the receiver via the electronic wallet held by the user from the user terminal S120) and confirming the completion and completion of the procedure of the transaction in which the money transaction server has been verified (S130).

According to the step S100, the personal authentication server generates a private key and distributes the private key to the user terminal after the request for the user terminal and subscription to the user, and the user authentication process.

In step S110, the user terminal may create and store one or more electronic wallets based on the private key according to the operation of use. At this time, the created electronic wallet can be stored in the database for each user account.

In step S120, when a transaction between the payee and the receiver is requested via the electronic wallet held by the user according to the virtual money transaction request of the user terminal, the verification server verifies the validity of the transaction using the private key and the public address do. At this time, the user can request the transaction by selecting the corresponding identification code instead of directly inputting the public address of himself and the recipient.

Thereafter, when the verification is completed, as the money transaction procedure is started in step S130, the money transaction server confirms the proceeding and completion of the corresponding money transaction.

In addition to the steps described above, after the step S110, the exchange server converts the value of the real currency to the virtual currency according to the exchange rate currently notified by the user terminal, and performs the requested currency exchange procedure Step < / RTI >

The scenario of a member's virtual currency transaction based on the above-mentioned steps is as follows.

First, the member receives the member's private key through the personal authentication server. The generated private key contains the creation of an encrypted electronic wallet address and some personal information. The entered private key is paired with the private key of the member, and the personal authentication server confirms whether or not the pair matches.

The member requests each transaction using the private key. The requested transaction is confirmed through the personal authentication server whether the database value of the member matches the private key value, and the authentication is completed, and the content is transmitted to the other server do.

The disclosed public address corresponds to the account number of the bank and the private key corresponds to the password of the account. In the virtual currency transaction method according to the embodiment of the present invention, the personal authentication server discloses the public address in order to solve the inconvenience of public address identification The identification code of the individual can be displayed between the parties. The transaction can be performed in place of the public address value only by the information among the members shown.

In virtual currency, an account is called an 'electronic purse', in which there is more than one account. The creation of the account can be continued with one-time creation and the created account can be used continuously. The created account exists as a public address which is a combination of numbers and capital letters.

As the virtual currency used in the present invention is traded on the basis of the public key cryptosystem, an account can be created and changed in an area where an electronic wallet such as a smart phone or a computer can be used. Then, all accounts created are stored in the member DB according to the verification of the block chain.

Information received from the personal authentication server can be displayed by authenticating transactions on a block chain node through verification of transaction information for virtual currency transactions through a money transaction server.

The verification server also analyzes the electronic wallet including the money amount information and displays information between the payee and the payee. The virtual currency transaction can proceed based on the input information.

When verifying the information, the money transaction server compares the invariance of the encrypted currency with the ease of use by enumerating the personal information in a way that is easy to distinguish between the companies based on the proven public address.

On the other hand, the information stored between the block chain nodes in the public key cryptosystem and the method is correct between the parties and nobody can interfere. Once the information in the account is confirmed, the transaction is authorized between the parties, and the payee confirms the information of the recipient and decides to complete the settlement with the private key security input. The determined payment information is displayed in a summary of the transaction information to the payee and the receiver after confirming the distinction between the money transaction server and the member DB.

That is, although each server of the virtual currency trading system according to the embodiment of the present invention is divided into a personal authentication server, a verification server, a money transaction server, and a currency exchange server, each server is complementary to each other, Transactions through these servers are also performed organically.

While a great many are described in the foregoing description, it should be construed as an example of preferred embodiments rather than limiting the scope of the invention. Accordingly, the invention is not to be determined by the embodiments described, but should be determined by equivalents to the claims and the appended claims.

10: user terminal 100: virtual currency trading system
200: Personal authentication server 300: Money transaction server
400: validation server 500: exchange server
600: Database 610: Member DB
620: Non-member DB 630: Member's electronic wallet DB
640: Non-member electronic wallet DB 650: Exchange transaction DB

Claims (8)

A personal authentication server for distributing a private key to one or more user terminals and creating one or more electronic wallets based on the private key;
A validation server for verifying the validity of the transaction when a transaction between a payment provider and a recipient via an electronic wallet held by a user is requested from the user terminal;
A currency transaction server confirming the proceeding and completion of the validated transaction; And
A currency exchange server for converting the value of the real currency to the virtual currency according to the currently announced exchange rate and performing the exchange procedure between the requested currency,
The virtual currency transaction system comprising: The method according to claim 1,
Wherein the personal authentication server comprises:
A member management unit for performing a member registration, a login, or a membership withdrawal procedure;
A private key generation unit for issuing a private key to a registered member;
An information management unit for managing a private key and an electronic wallet for each member; And
A personal key authentication unit for performing an authentication procedure with reference to a database upon receipt of a transaction request from the user terminal,
The virtual currency transaction system comprising: The method according to claim 1,
Wherein the verification server comprises:
A transaction verification unit for verifying transaction details according to whether or not the electronic wallet is present and whether the balance of the electronic wallet corresponds to the amount of withdrawal when the transaction is requested; And
A transaction verification unit for comparing the transaction details with transaction information generated according to a transaction of the virtual currency to verify whether the transaction is a normal transaction,
The virtual currency transaction system comprising: The method according to claim 1,
The money transaction server,
A transaction confirmation unit for confirming whether the transaction is completed according to information transmitted from the personal authentication server and the verification server; And
And a notification unit for notifying the user terminal of the completion of the transaction confirmed by the transaction confirmation unit,
The virtual currency transaction system comprising: The method according to claim 1,
The currency exchange server comprises:
A conversion amount calculation unit for calculating an amount of the real money according to the exchange rate that is currently noticed when the user terminal is requested to convert a certain amount of the virtual money to a specific physical currency;
A rate setting unit for providing the currently noticed exchange rate; And
A transaction information generating unit for requesting the electronic wallet to subtract a virtual currency corresponding to the calculated conversion amount and generating transaction information on the converted real money,
The virtual currency transaction system comprising: The method according to claim 1,
The electronic wallet includes:
And a different public address is set according to the type of the virtual currency. The personal authentication server distributing a private key to one or more user terminals;
The personal authentication server creating and storing one or more electronic wallets based on the private key upon request of the user terminal;
Verifying the validity of the transaction when a validation server requests a transaction between a payee and a receiver via the electronic wallet held by the user from the user terminal; And
The currency transaction server confirms the proceeding and completion of the validated transaction
The virtual currency transaction method comprising: 8. The method of claim 7,
After the step of creating and storing the electronic wallet,
Converting the value of the real currency to the virtual currency according to the exchange rate currently notified by the exchange server according to the request of the user terminal and performing the exchange procedure between the requested currency
The virtual currency transaction method comprising:

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