KR102205765B1 - Method And Apparatus for Providing Wallet for Enhancing Security And keeping Crypto-currency - Google Patents

Abstract

Disclosed is a method and apparatus for providing a wallet for storing integrated cryptocurrency and enhancing security.
It relates to a technology that provides a wallet that stores various cryptocurrencies through integration and provides a login authentication service for security enhancement.

Description

Method and Apparatus for Providing Wallet for Enhancing Security And keeping Crypto-currency}

An embodiment of the present invention relates to a method and apparatus for providing a wallet for storing and enhancing security of integrated cryptocurrency.

The content described in this section merely provides background information on the embodiments of the present invention and does not constitute the prior art.

With the development of IT technology and network technology such as the Internet, e-commerce services are spreading. E-commerce is generally a business-to-business transaction (B2B: Businessto Business), a business-to-person transaction (B2C: Businessto Customer), an individual-to-individual transaction (C2C: Customer to Customer), and business-to-government transactions. It can be classified as (B2G: Businessto Government).

Electronic commerce may include a series of actions such as purchase, delivery, marketing, and service provision, as well as movement of money through a wired or wirelessly connected network system.

Regarding e-commerce, a payment method using virtual electronic money has recently been of interest. A typical electronic money is bitcoin. Bitcoin is an electronic currency created by Satoshi Nakamoto in 2009, and transactions are conducted through a distributed database based on a peer-to-peer network, and transactions are performed based on public key cryptography.

Bitcoin is stored in the form of a wallet file, and each wallet is given a public address and a private key corresponding to a password, and items can be purchased based on the public address. The transaction details of such electronic money are generated and verified in a P2P network. All blocks thus generated form a block chain through a connection relationship with other blocks in the process of being stored through verification.

The process of transacting electronic money between users based on the structure in which electronic money is traded using a block chain is as follows. Each user generates a public key and a private key, respectively, and encryption using a public key can only be decrypted using a corresponding private key, whereas encryption using a private key creates a corresponding public key. It can be decrypted only by using it.

In order for user B to deliver electronic money to user C, user B hash the transaction details of the electronic money using the public key of user C. Once hashing is done, it is impossible to restore past transaction details. User B uses user C's public key to hash the transaction details and then signs using his private key. The signed result is passed to User C. Since the data received by User C is a transaction history encrypted using his public key, it can be decrypted using his own private key. The transaction of electronic money is completed by decrypting the encrypted transaction details.

As described above, in a conventional system for transacting using electronic money forming a block chain, transactions are possible only when both the seller who wants to sell the electronic money and the buyer who wants to purchase the electronic money have opened an electronic wallet. To this end, a user who wants to trade electronic money connects to a transaction document server, opens an electronic wallet, and then purchases electronic money by transferring real money to an exchange.

After confirming that the real money has been transferred, the exchange transfers the electronic money to the electronic wallet of the user who purchased the electronic money. When the user wants to sell the electronic money, the real money is transferred between the purchaser by connecting to the exchange server to transfer the electronic money and then the purchaser to purchase the transferred electronic money.

In other words, a general electronic money exchange does not provide a direct exchange of electronic money and real money between users and plays a role of intermediating the transaction of electronic money between sellers and buyers. Meanwhile, in the case of bitcoin, a representative case of electronic money, one block is generated approximately every 10 minutes. Therefore, since it takes about 10 minutes for the next transaction to be verified after the previous transaction, the use of bitcoin as an electronic money in e-commerce made in a short time impedes the speed of the transaction.

It is not possible to provide a direct exchange for electronic money and real money between general exchanges and users, and it is difficult to make an immediate transaction due to the time it takes to verify the block (about 10 minutes).

Currently, there are'exchange','hardware wallet', and'software (web) wallet' as methods of storing cryptocurrency.

Currently, one of the methods of storing cryptocurrency is through an exchange, and the other two methods are through a wallet called'wallet'. 'Hardware Wallet' is a real wallet similar to USB, which means a method of storing cryptocurrency in hardware (storage medium). 'Software (web) wallet' is a wallet in the form of storing on a web server or client, and refers to a method of storing in a server through a site that supports'software (web) wallet'.

Representative wallets among software wallets include Myetherwallet, Metamask, and Mist. MyEther Wallet focuses on storage functions with the smallest capacity and is the most used wallet due to its universality. Metamask and Mist have functions such as DAPP browser in addition to the storage function. Mist has a large capacity because it stores all of Ethereum's blockchain.

Problems with conventional'software (web) wallets' include'lack of transaction function between tokens','only Ethereum-based tokens', and'security related issues due to non-support of 2FA (Two-Factor Authentication)'.

Conventional software wallets require a process of going back and forth between the wallet and the exchange in order to trade due to the'lack of transaction function between tokens', and there is a problem that a large number of fees are generated during the transaction process.

In other words, conventional software wallets do not have a transaction function between tokens and can only store Ethereum-based tokens. This means that tokens that are not based on Ethereum, that is, tokens based on Quantum and Neo, must each have a different wallet, which can cause inconvenience as a holder. In addition, since there is no transaction or exchange function between tokens, in order to convert the Ethereum-based tokens owned by them into Bitcoin, Ethereum, and other types of Ethereum-based tokens, a software wallet (e.g. MyEtherWallet) → Exchange → Software wallet (e.g., MyEther Wallet) has to go through a complex process, and you have to pay fees in triplicate, causing inconvenience in terms of time and cost.

Since conventional software wallets store only Ethereum-based tokens (limited storage targets), there are many types of tokens, but tokens that can be stored by conventional software wallets (e.g., Mythe Wallet) are limited. have.

Conventional software wallets do not protect user's personal information due to'security related issues due to non-support of 2FA', so it is impossible to set up a dual security device such as OTP. Due to the above-described problems, a large-scale hacking problem for MyEtherWallet has occurred recently. Because conventional software (web) wallets do not store personal information, there is no obligation to protect them, so the victims have all the burdens.

In other words, since the conventional software wallet does not support 2FA setting in terms of security, it is impossible to set OTP or the like. This is because current cryptocurrencies have a decentralized nature, and since holders also want it, the conventional software wallet system has also moved in that direction. In order to proceed with OTP through 2FA setting, personal information and password must be stored in the server of the site. However, since conventional software wallets do not store these in order to pursue decentralization, 2FA setting is impossible.

An embodiment of the present invention has a main purpose to provide a wallet that stores various cryptocurrencies through integration and provides a login authentication service for reinforcing security.

According to an aspect of an embodiment of the present invention, a login authentication processing unit that performs login authentication for access to a wallet; A token storage unit for storing at least one cryptocurrency; And a token transaction unit that extracts a specific cryptocurrency from among the at least one cryptocurrency in connection with an exchange server device when a transaction input signal is input from the user who has completed the login authentication, and processes transactions between wallets for the specific cryptocurrency. It provides a wallet service providing apparatus comprising the.

In addition, according to another aspect of an embodiment of the present invention, a method of providing a wallet service for processing a cryptocurrency transaction, comprising: a login authentication process of performing login authentication for access to a wallet; A token storage process of storing at least one cryptocurrency; And when a transaction input signal is input from the user who has completed the login authentication, interlocking with an exchange server device to extract a specific cryptocurrency from among the at least one cryptocurrency, and to process a transaction between wallets for the specific cryptocurrency. It provides a wallet service providing method comprising a.

As described above, according to the embodiment of the present invention, there is an effect of reducing fees incurred during cryptocurrency transactions in a cryptocurrency wallet, and storing various types of tokens or coins.

In addition, as the cryptocurrency wallet provides a login authentication service, it is possible to securely support the service, and there is an effect of allowing the storage option of the private key to be determined according to the user's choice.

1 is a block diagram schematically showing a cryptocurrency system according to an embodiment of the present invention.
2 is a block diagram schematically showing a wallet service providing apparatus for providing a cryptocurrency service according to an embodiment of the present invention.
3 is a flowchart illustrating a wallet-based token transaction method according to an embodiment of the present invention.
4 is a flowchart illustrating a wallet-based login authentication method according to an embodiment of the present invention.

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

1 is a block diagram schematically showing a cryptocurrency system according to an embodiment of the present invention.

The cryptocurrency system according to this embodiment includes a first terminal 110, a second terminal 120, and an exchange server device 130. Here, the first terminal 110 and the second terminal 120 may be terminals used by different users, respectively, and hardware or software that enables cryptocurrency transactions between the first terminal 110 and the second terminal 120 Includes wallet.

The first terminal 110 refers to a terminal capable of transmitting and receiving various data using a communication intermediary device according to a user's key operation, and a tablet PC, a laptop, and a portable multimedia player (PMP). Player), a wireless communication terminal (Wireless Communication Terminal), a smart phone (SmartPhone), and may be any one of various digital devices such as a mobile communication terminal (Mobile Communication Terminal).

The first terminal 110 is a terminal that performs voice or data communication using an AP and a communication network, a memory for storing a program or protocol for communicating with an external device via the AP and a communication network, and an operation by executing the program And a terminal equipped with a microprocessor for controlling.

The first terminal 110 according to the present embodiment interworks with the second terminal 120 and the exchange server device 130 and performs a cryptocurrency service function. Here, the cryptocurrency service functions include storage, management, and transaction of cryptocurrency. The first terminal 110 may process a cryptocurrency service function by mounting a first wallet 112 for processing a cryptocurrency service. The first wallet 112 may be implemented in the form of an application. When the first terminal 110 is a smartphone, the first wallet 112 refers to an application downloaded through the application store and then installed. When the first terminal 110 is a feature phone, Refers to an application running on the downloaded VM (Virtual Machine).

On the other hand, to explain the form in which the first wallet 112 is mounted on the first terminal 110 according to the present embodiment, the first terminal 110 is equipped with the first wallet 112 in an embedded form. It may be implemented in a state or embedded in an operating system (OS) mounted in the first terminal 110. In addition, the first wallet 112 may be installed in an OS in the first terminal 110 by a user's manipulation or command. The first wallet 112 mounted on the first terminal 110 in the above-described manner may be implemented to interwork with a basic application (eg, a camera application and a data transmission/reception application, etc.) mounted on the first terminal 110, but must be It is not limited thereto, and may be implemented to be operated as an independent function without interworking with the basic application.

The first terminal 110 according to the present embodiment performs token transaction, token storage, and login authentication based on the first wallet 112.

The first wallet 112 processes a token transaction with the second wallet 122 included in the second terminal 120 based on a user's request. The first wallet 112 performs a token transaction with the second wallet 122 through interworking with the exchange server device 130 based on an application programming interface (API).

In addition, the first wallet 112 performs an operation of storing cryptocurrency for token transaction. Here, the cryptocurrency may be stored in the form of a token or coin. The first wallet 112 may store different types of tokens, and may store different tokens, such as its own electronic money (coin), Bitcoin, Ethereum, and Quantum. The first wallet 112 may classify and store each token by type, but is not limited thereto, and may store all tokens together by including identification information.

In addition, the first wallet 112 receives wallet login setting information from a user, and determines whether to store a private key on the server based on the wallet login setting information. The first wallet 112 provides a triple-structure login method, prevents simultaneous access to the wallet, and provides a log-in history check and log-in notification function.

The second terminal 120 operates in conjunction with the first terminal 110 and the exchange server device 130, and the configuration of the second terminal 120 and the configuration of the second wallet 122 is the first terminal 110 And since it is the same as the first wallet 112, a duplicate description will be omitted.

The exchange server device 130 refers to a server that generates and mines cryptocurrency, and manages it. The exchange server device 130 may preferably be a server operated by affiliate stores, card companies, and distribution companies for managing cryptocurrency.

Throughout the specification, cryptocurrency refers to electronic money that can be used for transactions in real life like real money. In this embodiment, the cryptocurrency is stored through a personalized wallet (first wallet or second wallet), and is implemented to be easily and easily used through affiliated affiliate stores anywhere in the world. Such cryptocurrency is preferably issued through blockchain technology, but is not limited thereto.

In this embodiment, the cryptocurrency is preferably a self-developed cryptocurrency (eg, Berith Coin) capable of trading between wallets, but is not limited thereto. For example, the cryptocurrency used in this embodiment may be a cryptocurrency commonly circulated in the past, such as Ethereum and Bitcoin.

The exchange server device 130 may interwork with the wallets 112 and 122 based on a P2P network, and transactions are made through a distributed database. The exchange server device 130 performs a transaction based on a public key encryption method.

2 is a block diagram schematically showing a wallet service providing apparatus for providing a cryptocurrency service according to an embodiment of the present invention.

The wallet service providing apparatus 200 according to the present embodiment includes a token transaction unit 210, a token storage unit 220, a login authentication processing unit 230, and an additional authentication processing unit 240. The wallet service providing apparatus 200 shown in FIG. 2 is according to an embodiment, and not all blocks shown in FIG. 2 are essential components, and some blocks included in the wallet service providing apparatus 200 in another embodiment These may be added, changed or deleted. The wallet service providing apparatus 200 may be implemented as the first terminal 110 or the second terminal 120, but is not limited thereto, and may be a separate device interoperable with the terminal.

The token transaction unit 210 processes token transactions between wallets. The token transaction unit 210 may perform a token transaction on its own through interworking with the exchange server device 130.

When obtaining a transaction input signal from a user, the token transaction unit 210 according to the present embodiment transmits a token transaction request message to the exchange server device 130. When receiving the token transaction permission message corresponding to the token transaction request message from the exchange server device 130, the token transaction unit 210 extracts (selects) a token for a transaction with another terminal from among the holding tokens.

The token transaction unit 210 transmits the extracted token to another terminal to perform a token transaction. In this process, the token transaction unit 210 may receive a new token for a token transaction from another terminal.

When the token transaction is completed, the token transaction unit 210 transmits a token transaction completion message to the exchange server device 130. Here, the exchange server device 130 performs settlement on the traded token based on the token transaction completion message. Here, the settlement of the token may mean a real transaction, but is not limited thereto.

The token transaction unit 210 may include an application programming interface (API) for transmitting and receiving various messages for token transaction with the exchange server device 130. Meanwhile, the token transaction unit 210 may transmit and receive various messages for token transaction with the exchange server device 130 using a token transaction module or token transaction software included in an application-type wallet.

Through the above-described token transaction operation, the token transaction unit 210 can transact between its own electronic money (coin), bitcoin, Ethereum, and quantum, and in general, reduce fees due to token transactions between wallets and exchanges when trading tokens. I can.

The token storage unit 220 performs an operation of storing cryptocurrency for token transaction. Here, the cryptocurrency may be stored in the form of a token or coin. The token storage unit 220 according to the present embodiment may store different types of tokens. The token storage unit 220 may store different tokens such as its own electronic money (coin), Bitcoin, Ethereum, and Quantum, and each token may be classified and stored according to type.

The login authentication processing unit 230 performs login authentication to secure access to a wallet for token transaction.

The login authentication processing unit 230 according to the present embodiment receives the user's wallet login setting information, and supports a server storage/management service of a private key based on the wallet login setting information. That is, the login authentication processing unit 230 determines whether to store the private key on the server according to the user's setting. Here, the server may be a storage device interworking with the wallet, but is not limited thereto, and may be a storage server included in the exchange server device 130.

When it is determined that the server storage of the private key is determined, the login authentication processing unit 230 may operate to separate the private key into a plurality of private keys, and store them separately in different spaces. For example, in the present embodiment, the login authentication processing unit 230 may separate the private keys into three, one of which is directly stored by the user, and one of the other keys stored in the server. At this time, one of the remaining two keys stored in the server may be stored in a user's own DB, that is, a key management server corresponding to the user, and the other may be stored through a secret management server accessible only to a specific administrator. .

Separate storage of the private key by the login authentication processing unit 230 can prevent the hacking of the private key by internal employees and the leakage of the private key of an individual, so that security can be maximized.

When the private key is stored in the server, the login authentication processing unit 230 provides a countermeasure against the loss of the private key due to an unexpected accident. For example, when storing the private key in the server, the login authentication processing unit 230 may provide a previously stored private key after performing a predetermined authentication procedure when the user dies or simply loses the key. On the other hand, when the private key is not stored in the server, the login authentication processing unit 230 may be set to disable use of all tokens and coins, similar to the conventional wallet service.

The login authentication processing unit 230 applies a triple-structure login method (①), prevents simultaneous access to the wallet from a plurality of terminals (②), and provides a log-in history check and log-in notification (③) function.

① Apply a triple-structure login method

The login authentication processing unit 230 applies a triple-structure login method using'ID','PW', and'private key' to access the wallet. The login authentication processing unit 230 according to the present embodiment uses'ID','PW' and'private key', unlike a conventional software wallet that uses a login method using a password and a private key. Thus, it provides a three-tiered login method. The login authentication processing unit 230 not only can enjoy higher security and safety by applying a triple-structure login method, but also supports a server storage service of a private key.

In the case of conventional wallets, the responsibility for storing the private key is left to the individual, but there are some people who are happy to call it decentralization, but there are also coin holders who do not want it, such as worrying about injustice. Accordingly, the login authentication processing unit 230 according to the present embodiment allows the user to individually select whether to store the private key in the server.

When the user chooses to store the private key on the server, the login authentication processing unit 230 checks the documents corresponding to the preset criteria when the private key is lost due to an accident, etc., or the coin in the wallet cannot be found. You can provide the stored private key. For example, if the coin holder dies, the login authentication processing unit 230 checks the submitted documents and provides the private key when the coin holder's family submits a death certificate, family relationship certificate, etc., so that it cannot be found in a conventional wallet. You can find a token or coin.

② Prevent simultaneous access to wallet

The login authentication processing unit 230 prevents simultaneous access to the wallet from a plurality of terminals through login authentication. The login authentication processing unit 230 may minimize the damage of hacking by preventing negative access by preventing simultaneous access.

③ Check login history and notify login

The login authentication processing unit 230 prevents simultaneous access to the wallet from a plurality of terminals through login authentication, enables a user to check a login history, and provides a function of notifying a user upon login processing.

The login authentication processing unit 230 may check whether the user has logged in when and using which device. In addition, the login authentication processing unit 230 provides a notification through a text message or the like upon login, so that the user can immediately check that someone other than the user has accessed the token or coin through an illegal method.

The additional authentication processing unit 240 performs an operation of processing additional authentication for accessing the wallet. The additional authentication processing unit 240 may perform additional identity authentication using a KYC (Know Your Customer) method. The additional authentication processing unit 240 may process identity authentication to proceed with ICO, passport authentication, photo authentication, survey, etc. through additional authentication. When the additional authentication processing unit 240 participates in an ICO (Initial Coin Offering) for a token to be used as a DAPP (Decentralized APPlication) of a membership-based marketing platform in the future by using the KYC method, the additional authentication processing unit 240 according to this embodiment You can participate more conveniently than the existing ICO method.

3 is a flowchart illustrating a wallet-based token transaction method according to an embodiment of the present invention.

When the login authentication of the first wallet 112 is completed (S310), the first terminal 110 obtains a transaction input signal from the user (S320).

The first terminal 110 transmits a token transaction request message to the exchange server device 130 based on the transaction input signal (S330).

When the first terminal 110 receives the token transaction permission message corresponding to the token transaction request message from the exchange server device 130 (S340), the first terminal 110 extracts (selects) a token for a transaction with another terminal among the holding tokens (S350). ).

The first terminal 110 transmits the extracted token to the second terminal 112 to perform a token transaction (S360). In step S360, the first terminal 110 may receive a new token for the token transaction from the second terminal 112.

When the token transaction is completed, the first terminal 110 transmits a token transaction completion message to the exchange server device 130 (S370). Thereafter, the exchange server device 130 performs settlement on the traded token based on the token transaction completion message (S380). Here, the settlement of the token may mean a real transaction, but is not limited thereto.

In FIG. 3, it is described that each process is sequentially executed, but is not limited thereto. In other words, since the process described in FIG. 3 may be changed and executed or one or more processes may be executed in parallel, FIG. 3 is not limited to a time series order.

In addition, the wallet-based token transaction method according to the present embodiment illustrated in FIG. 3 may be implemented as an application (or program) and recorded in a recording medium readable by a terminal device (or computer). The application (or program) for implementing the wallet-based token transaction method according to the present embodiment is recorded and the recording medium that can be read by the terminal device (or computer) is all types of data that can be read by the computing system. Includes a recording device.

4 is a flowchart illustrating a wallet-based login authentication method according to an embodiment of the present invention. FIG. 4 is a flow chart specifically showing a login authentication operation in step S310 of FIG. 3.

The first terminal 110 acquires the user's wallet login setting information (S410). The first terminal 110 supports a server storage/management service of a private key based on the wallet login setting information.

The first terminal 110 determines whether to store the private key in the server based on the wallet login setting information (S420).

When storing the private key in the server, the first terminal 110 stores the private key based on the wallet login setting information (S430). Even if the user loses the private key due to an unexpected accident, the first terminal 110 provides a countermeasure for this (S440). For example, when storing the private key in the server, the first terminal 110 may provide a pre-stored private key after performing a predetermined authentication procedure when the user dies or simply loses the key.

Meanwhile, when the first terminal 110 does not store the private key in the server, it does not separately store the private key (S422).

In FIG. 4, each process is described as being sequentially executed, but is not limited thereto. In other words, since it may be applicable to changing and executing the processes illustrated in FIG. 4 or executing one or more processes in parallel, FIG. 4 is not limited to a time series order.

In addition, the wallet-based login authentication method according to the embodiment illustrated in FIG. 4 may be implemented as an application (or program) and recorded on a recording medium that can be read by a terminal device (or a computer). The application (or program) for implementing the wallet-based login authentication method according to the present embodiment is recorded and the recording medium that can be read by the terminal device (or computer) is all types of data that can be read by the computing system. Includes a recording device.

The above description is merely illustrative of the technical idea of the embodiments of the present invention, and those of ordinary skill in the technical field to which the embodiments of the present invention belong to, various modifications and modifications without departing from the essential characteristics of the embodiments of the present invention Transformation will be possible. Accordingly, the embodiments of the present invention are not intended to limit the technical idea of the embodiments of the present invention, but to explain, and the scope of the technical idea of the embodiments of the present invention is not limited by these embodiments. The scope of protection of the embodiments of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the rights of the embodiments of the present invention.

110: first terminal 112: first wallet
120: second terminal 122: second wallet
130: Exchange server device
200: wallet service providing device 210: token trading unit
220: token storage unit 230: login authentication processing unit
240: additional authentication processing unit

Claims (11)

A login authentication processing unit that performs login authentication for access to the wallet;
A token storage unit for storing at least one cryptocurrency; And
When a transaction input signal is input from the user who has completed the login authentication, it interlocks with an exchange server device to extract a specific cryptocurrency from among the at least one cryptocurrency, and includes a token trading unit that processes transactions between wallets for the specific cryptocurrency. But,
The login authentication processing unit,
In the login authentication, ID, password, and private key are used, but the private keys are separated into a plurality of users, each key management server corresponding to the user, and all of the secret management servers that only a specific administrator can access according to user selection. Or stored by being stored separately in some,
The token trading unit,
To process transactions between wallets by transmitting tokens corresponding to the extracted specific cryptocurrency to other wallets and reflecting them on the exchange server device
Wallet service providing device, characterized in that. The method of claim 1,
The token trading unit,
A wallet service providing apparatus, comprising: transmitting a token transaction request message to the exchange server device based on the transaction input signal, and extracting the specific cryptocurrency when a token transaction permission message corresponding to the token transaction request message is received. . The method of claim 2,
The token trading unit,
A wallet service providing apparatus comprising transmitting and receiving the token transaction request message and the token transaction permission message based on an API (Application Programming Interface). delete The method of claim 1,
The login authentication processing unit,
A wallet service providing apparatus, characterized in that it prevents simultaneous access to the wallet from a plurality of external devices through login authentication, and provides functions to check login history and notify login. The method of claim 1,
The login authentication processing unit,
A wallet service providing apparatus, characterized in that determining whether to store and manage the server for the private key based on the previously collected user's wallet login setting information. delete The method of claim 1,
The token storage unit,
At least one different type of cryptocurrency is stored, wherein the cryptocurrency is stored for each different type or includes identification information. In the method of providing a wallet service for processing cryptocurrency transactions,
A login authentication process for performing login authentication for access to the wallet;
A token storage process of storing at least one cryptocurrency; And
When a transaction input signal is input from the user who has completed the login authentication, a token transaction process of extracting a specific cryptocurrency from among the at least one cryptocurrency in connection with an exchange server device, and processing a transaction between wallets for the specific cryptocurrency is performed. Include,
The login authentication process,
In the login authentication, ID, password, and private key are used, but the private keys are separated into a plurality of users, each key management server corresponding to the user, and all of the secret management servers that only a specific administrator can access according to user selection. Or stored by being stored separately in some,
The token transaction process,
To process transactions between wallets by transmitting tokens corresponding to the extracted specific cryptocurrency to other wallets and reflecting them on the exchange server device
A method of providing a wallet service, characterized in that. The method of claim 9,
The token transaction process,
A method of providing a wallet service, comprising: transmitting a token transaction request message to the exchange server device based on the transaction input signal, and extracting the specific cryptocurrency when a token transaction permission message corresponding to the token transaction request message is received. . The method of claim 10,
The token transaction process,
A method for providing a wallet service, comprising transmitting and receiving the token transaction request message and the token transaction permission message based on an API (Application Programming Interface).

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