KR102250861B1 - System for easy payment based on blockchain using emotion - Google Patents

Abstract

A blockchain-based simple payment system includes: a user management unit configured to store user information including a block chain electronic wallet address of a plurality of users; A communication unit configured to provide a user interface including an emoticon image to the sender's user device, and to receive an image file including virtual currency transmission information from the user device by using the user interface; A conversion unit configured to extract the virtual currency transmission information from the image file received from the user device, and convert at least a part of the virtual currency transmission information into a blockchain electronic wallet address by using the information stored in the user management unit; And a wallet linkage unit configured to transfer the virtual currency from the sender to the recipient using the cryptocurrency transmission information and the blockchain electronic wallet address converted by the conversion unit.
According to the simple payment system, the information entered by the user through the emoticon image is converted into an electronic wallet address by the system, so even if the user does not directly enter a complex wallet address of tens of digits, the counterpart is easily identified and payment processing is performed. can do.

Description

Blockchain-based simple payment system using emoticons {SYSTEM FOR EASY PAYMENT BASED ON BLOCKCHAIN USING EMOTION}

The present invention relates to a simple payment system based on a block chain using emoticons.

Specifically, it relates to a technology that enables simple payment that can easily and safely process the transfer of cryptocurrency using emoticons, while performing asset movement between users by transferring blockchain-based cryptocurrency.

With the recent development of Information & Communication Technology (ICT), a new concept of currency to replace the existing currency is emerging, such as electronic money and virtual currency.

Electronic money is a payment method that replaces the existing currency with an electronic method by grafting ICT under the existing currency system, and includes an integrated circuit (IC) chip, transportation card, and points issued and used through the Internet.

On the other hand, virtual currency is a new concept of currency that has exchange value and value as a payment method as a distributed network-type value instrument based on a blockchain.

Virtual currency is not generated by a specific institution, but is collected through computer processing, and is traded in a peer-to-peer (P2P) method, and the total issuance is limited.

For example, representative cryptocurrencies include bitcoin, bitcoin cash, ethereum, Ethereum Classic, ripple, and litecoin.

Users can exchange cryptocurrency with other users based on the address of a blockchain electronic wallet issued through a cryptocurrency exchange or created through an electronic wallet application installed on their user's device.

1 is a conceptual diagram showing a user interface for transmission of a conventional virtual currency.

Referring to FIG. 1, a sender who wants to transmit a virtual currency to another user in a virtual currency exchange or an electronic wallet application is the sender's own electronic wallet address 101 and the recipient's electronic It is necessary to enter the wallet address 104, select the type of cryptocurrency to be transmitted 102, and enter the amount of cryptocurrency transmitted 103.

At this time, the e-wallet addresses 101 and 104 of the sender and recipient are processed by a hash function of each user's public key for transactions on the blockchain, and alphabets that do not form words It has a form of dozens of digits.

The sender who wants to transmit the virtual currency must directly input the transmission details including the electronic wallet addresses 101 and 104 having a complex form.

Even if the sender's electronic wallet address 101 is previously stored in a cryptocurrency exchange or an electronic wallet application, the recipient’s electronic wallet address 104 to receive the cryptocurrency and the amount of cryptocurrency to be transmitted 103 The type 102 has to be directly input by the sender.

However, the e-wallet addresses 101 and 104 have a very complex form of dozens of digits, and if even one digit is incorrectly entered, the cryptocurrency transmission may fail or the cryptocurrency may be transmitted to an unintended target. There is this.

As a related technology, first, Registration Patent Publication No. 10-1856038 describes a transaction method of digital virtual currency having a block chain matched with a transfer fact check and a phone number.

This is referred to as prior art 1, and in the prior art 1, in the step of sending a blockchain-based digital virtual currency transaction information server (S130), the user's smartphone information is forcibly notified of the transfer to the user's smartphone to confirm that the transfer is correct. A notification step (S1130b); The transfer fact authentication step (S130c) of authenticating the transfer fact that the person who has received the notification in the user's smartphone information notification step (S130b) responds to the fact of the objection to Yes and No within 10 seconds; And, in the case of authenticating this in the transfer fact authentication step (S130c) and sending a signal of Yes, the transfer account and phone number matching confirmation step (S130d) to check whether the transfer account is matched with the owner phone number of the account to be transferred (S130d). ; Thereafter, when a transaction request signal for a donor is transmitted from the donor terminal 300, the blockchain-based digital virtual currency transaction information server 200 matches the transfer account and the phone number of the donor included in the donor transaction request signal to be a member. After confirming that it is, the recipient recognition URL (A) transmission step of creating a recipient recognition URL (A) that guides the recipient to recognize the recipient who is gifted with a digital virtual currency with a block chain and transmitting it to the donor terminal 300 It relates to (S140).

Prior art 1 is described in relation to the transaction of a virtual currency, but it cannot be performed through an image file such as an emoticon, so it cannot overcome the problem of the conventional complicated user designation.

As another technology, Unexamined Patent Publication No. 10-2017-0066955 describes an electronic payment authentication server based on a payment image matched with a phone number, an electronic payment system, an electronic payment method, and an electronic payment application.

This is referred to as prior art 2, and prior art 2 relates to an electronic payment authentication server based on a payment image matched with a phone number, an electronic payment system, an electronic payment method, and an electronic payment application.

In the payment image-based electronic payment method matched with the phone number of prior art 2, the seller terminal transmits a payment request signal including the inputted buyer's phone number and payment details to an authentication server, and the authentication server sends a payment request signal. Upon receipt, extracting the phone number of the purchaser included in the received payment request signal, and transmitting the authentication request signal to the purchaser terminal matched with the extracted phone number. When the purchaser terminal receives the authentication request signal, the purchaser's authentication Executing the procedure and transmitting the authentication response signal, which is the result of the authentication procedure, to the authentication server.When the authentication server receives the authentication response signal, the phone number is extracted from the authentication response signal, and payment matching the extracted phone number Transmitting a payment request signal to the payment server based on the image file, and when the payment server receives the payment request signal, executing a payment approval procedure based on the phone number, and transmitting the result of the approval procedure to the authentication server. Includes.

The image file in Prior Art 2 relates to a payment image file matched on the phone number of a purchaser, and in brief, payment is performed based on the image file.

However, in the case of prior art 2, since payment for currency that has been used is described, payment for heterogeneous currencies cannot be handled. If this is interpreted as a remittance concept as in the present invention, remittance is impossible when a different currency is used between a user giving and receiving money.

As another technique, a method of providing a pattern image is described in Korean Patent Publication No. 10-2017-0117959.

The above technology is referred to as prior art 3, and in the pattern image providing method executed through a pattern image server that generates a pattern image, a user equipped with a camera based on a user's payment request using a communication network Check payment information including payment amount to be transferred to a program provided in the wireless terminal, and transfer the payment information to a program provided in a user wireless terminal equipped with a camera without transmitting the payment information to the user wireless terminal through a communication network. The present invention relates to a method for providing a pattern image for generating a pattern image for transmitting payment information by encoding data for the payment in a designated encoding method, and processing the pattern image generated for delivery of the payment information to be electronically displayed through a designated monitor screen.

Prior Art 3 describes a pattern image, which is close to being used as an element for verification, and is not related to a technology for transacting using emoticons as in the present invention.

Unexamined Patent Publication No. 10-2018-0093387 (2018.08.22.) Registered Patent Publication No. 10-1856038 (announced on June 21, 2018) Unexamined Patent Publication No. 10-2017-0066955 (2017.06.15.) Unexamined Patent Publication No. 10-2017-0117959 (October 24, 2017)

An object of the present invention is to perform asset movement between users by remittance of blockchain-based virtual currency, but a blockchain using emoticons that can easily and safely process the transfer of virtual currency by utilizing an emoticon-based user interface. It is to provide a simple payment system based.

Blockchain-based simple payment system using emoticons according to the present invention as devised to achieve the above object,

In the virtual currency transmission technology based on user's input of information using an emoticon, which is an image file provided, without entering an e-wallet address of tens of digits,

It is characterized in that the virtual currency transmission information input from the user device is received, and after a predetermined verification, is transmitted to a destination through a plurality of nodes constituting a blockchain network.

At this time, the blockchain-based simple payment system,

A user management unit configured to store user information including addresses of a plurality of users' blockchain electronic wallets;

A communication unit configured to provide a user interface including an emoticon image to the sender's user device, and to receive an image file including virtual currency transmission information from the user device by using the user interface;

A conversion unit configured to extract the virtual currency transmission information from the image file received from the user device, and convert at least a part of the virtual currency transmission information into a blockchain electronic wallet address by using the information stored in the user management unit; And

And a wallet linking unit configured to transfer the virtual currency from the sender to the recipient using the cryptocurrency transmission information and the blockchain electronic wallet address converted by the conversion unit.

In addition, the virtual money transmission information includes sender information, recipient information, virtual currency information and quantity information,

The sender information and the recipient information may correspond to a user identifier included in the user information.

In addition, the conversion unit,

A first verification unit configured to verify whether the image file received from the user device is forged or altered; And

And a second verification unit configured to verify whether a blockchain electronic wallet address corresponding to each of the sender information and the recipient information included in the image file is stored in the user management unit.

In addition, the image file received from the user device is encrypted, and the conversion unit further includes a decryption unit configured to decrypt the encrypted image file.

In addition, the first verification unit,

The image file is verified by using checksum information defined based on a preset area of the image file that at least partially includes the virtual currency transmission information.

In addition, the second verification unit,

As a result of the verification, even if the address of the blockchain electronic wallet is stored in the user management unit, it is characterized in that it additionally verifies whether the virtual currency transmission information corresponds to the type of virtual currency specified.

According to the blockchain-based simple payment system using emoticons according to the present invention, a block-chain electronic wallet address that provides a user with a simplified user interface and information input through the user interface is required to transmit virtual currency by the system. Since it is converted to and processed, it is possible to easily identify the other party and perform payment processing without the user directly entering a complex wallet address of dozens of digits.

In addition, a user interface according to an aspect of the present invention is based on an emoticon image file, and information input by a user is encrypted as part of data included in the image file and transmitted to the system. In the system, by performing the first emoticon verification and the second electronic wallet verification on the image file received from the user, the user can safely and conveniently perform the virtual currency transmission.

1 is a conceptual diagram showing a user interface for transmission of virtual currency through a conventional virtual currency exchange.
2 is a schematic block diagram of a simple payment system based on a block chain according to an embodiment.
3 is a flowchart of a simple payment method based on a block chain according to an embodiment.
4 is a conceptual diagram illustrating a user interface using a simple payment method based on a block chain according to an embodiment.

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

2 is a schematic block diagram of a simple payment system based on a block chain according to an embodiment.

Referring to FIG. 2, a block chain-based simple payment system 3 according to the present embodiment includes a sender's user device 1 who wants to transfer a blockchain-based virtual currency, and a plurality of nodes 41-46. It communicates with and operates with the blockchain network 4 maintained by using.

In addition, the blockchain-based simple payment system 3 can further communicate with the recipient's user device 2 that receives the virtual currency from the sender.

Furthermore, the blockchain-based simple payment system 3 can operate while communicating with one or more external servers 6, such as a virtual currency exchange server or a server that provides a management service for a blockchain electronic wallet.

The above communication process is performed through a wired and/or wireless network.

The communication method through a wired and/or wireless network may include all communication methods capable of networking the object and the object, and is not limited to wired communication, wireless communication, 3G, 4G, or other methods.

For example, wired and/or wireless networks include LAN, MAN, GSM, EDGE, HSDPA, W-CDMA, CDMA, TDMA, Bluetooth, Zigbee, Wi-Fi, LTE Advanced, IEEE802.16m, WirelessMAN-Advanced, HSPA+, and 3GPP Long Term Evolution (LTE), Mobile WiMAX (IEEE 802.16e), UMB (formerly EV-DO Rev.C), Flash-OFDM, iBurst and MBWA (IEEE 802.20) systems, HIPERMAN, Beam-Division Multiple Access (BDMA) , Wi-MAX (World Interoperability for Microwave Access), and may refer to a communication network using one or more communication methods selected from the group consisting of ultrasonic communication, but is not limited thereto.

The system, user device, and server according to the embodiments may have an aspect that is entirely hardware, or partially hardware and partially software.

For example, user devices (1, 2), blockchain-based simple mood system (3) and external server (6), and units included therein, process data of a specific format and content or/or electronically Hardware for sending and receiving in a communication method and software related thereto may be collectively referred to.

In this specification, terms such as sub/module/device/terminal/server/system are intended to refer to a combination of hardware and software driven by the hardware.

For example, the hardware may be a data processing device including a CPU or other processor.

In addition, software driven by hardware may refer to an executing process, an object, an executable file, an execution thread, or a program.

In addition, each element constituting the blockchain-based simple payment system 3 according to the present embodiment is not necessarily intended to refer to separate devices that are physically separated from each other.

That is, the user management unit 30, the communication unit 31, the conversion unit 32, and the wallet linkage unit 33 of FIG. 2 operate the hardware constituting the blockchain-based simple payment system 3 by the corresponding hardware. It is only functionally classified according to, and does not necessarily have to be provided independently of each other.

Of course, depending on the embodiment, any one or more of the user management unit 30, the communication unit 31, the conversion unit 32, and the wallet linkage unit 33 may be implemented as separate devices that are physically separated from each other.

Senders who want to transmit virtual currency (or so-called coins) that are issued and previously managed based on the distributed ledger on the blockchain, use the first user device (1) to use a blockchain-based simple payment system (3). By communicating with, a user interface (UI) for virtual currency transmission can be provided.

The conventional service UI used by the user when transmitting virtual currency is a block chain-based simple payment system according to embodiments, unlike in which the user had to directly input an electronic wallet address of tens of digits as described above with reference to FIG. 1 The UI provided by (3) is based on the image file, and the user can transmit the information necessary for virtual currency transmission to the blockchain-based simple payment system (3) by simply inserting information into the image file.

This will be described in detail later.

In one embodiment, the blockchain-based simple payment system 3 at least partially communicates with an application running on the user devices 1 and 2 to perform the function of an application server that enables the application to perform its functions. do.

Or/In addition, the block chain-based simple payment system 3 based on the block chain is a predetermined web page accessible through a web browser or the like that is at least partially executed on the user devices 1 and 2 It can also perform the function of a web server that provides ).

In FIG. 2, the first and second user devices 1 and 2 are shown in the form of a notebook computer, respectively. However, this is illustrative and does not limit the shape of the first and second user devices 1 and 2, and the first and second user devices 1 and 2 are mobile communication terminals such as smartphones, personal computers, PDAs, It may be implemented in the form of an arbitrary computing device such as a set-top box for tablet IPTV or the like.

The cryptocurrency that is transmitted through the blockchain-based simple payment system 3 according to the embodiments is based on the blockchain network 4.

The blockchain network 4 consists of a plurality of nodes 41-46 participating in it. At this time, block chain information is connected by blocks, and information is jointly managed by storing information in each node (41-46) instead of a central management server in a peer-to-peer (P2P) network distributed environment. Refers to a way to maintain security.

The basic structure of the information shared on the blockchain is in the form of a collection of blocks connected one after another, and only the financial transaction details agreed by digital signature after a process of verifying and approving transactions by more than half of the participants for a certain period of time. Make it into one block. Then, the newly created block is connected to the previous blockchain, a copy is made and distributed to each node (41-46) and stored.

In FIG. 2, each of the plurality of nodes 41-46 is shown in the form of a server, but each of the plurality of nodes 41-46 is a set-top for a mobile communication terminal such as a smartphone, a personal computer, a PDA, a tablet, an IPTV, etc. It may be implemented in the form of an arbitrary computing device such as a box.

In addition, although FIG. 2 shows that the block chain network 4 is configured by six nodes 41-46, the number of nodes participating in the block chain network 4 may be more or less.

In one embodiment, the blockchain-based simple payment system 3 includes a user management unit 30, a communication unit 31, a conversion unit 32, and a wallet linkage unit 33.

In this case, the conversion unit 32 includes a first verification unit 322 and a second verification unit 323. In addition, the conversion unit 32 may further include a decoding unit 321.

The user management unit 30 is configured to store user information including addresses of a plurality of users' blockchain electronic wallets. For example, the user management unit 30 may match and store an identifier such as an ID of each user with an electronic wallet address of a corresponding user. In addition, the user management unit 30 may store a password for authentication of the user or a converted value of the password (eg, a hash value).

The communication unit 31 functions to provide a UI to users who use the blockchain-based simple payment system 3. In particular, the communication unit 31 provides a UI including an emoticon image to the sender's user device 1 that transmits the virtual currency, and transmits the virtual currency input to the user device 1 by the sender using the UI. Information is received from the user device 1.

The virtual currency transmission information may include a sender's user identifier (eg, ID), a recipient's user identifier, information on a virtual currency to be transmitted, and/or information on a quantity of virtual currency to be transmitted.

When the user inputs the corresponding information in the UI including the emoticon image, an image file including virtual currency transmission information is generated and transmitted from the user device 1 to the communication unit 31.

The conversion unit 32 extracts virtual currency transmission information from the image file received by the communication unit 31. In addition, the conversion unit 32 may convert the identifier of the sender and/or the recipient of the virtual currency transmission information into a blockchain electronic wallet address using the user information stored in the user management unit 30.

In this case, when the image file received from the user device 1 to the communication unit 31 is encrypted, the decryption unit 321 of the conversion unit 32 may decrypt the encrypted image file.

In addition, the first verification unit 322 of the conversion unit 32 determines whether the image file received from the user equipment 1 is generated based on the UI provided by the blockchain-based simple payment system 3, that is, You can verify whether the image file has been forged or altered.

For example, the first verification unit 322 may perform verification by calculating a checksum in a predefined manner by inputting a value of a specific region of the image file. In this case, the target region for calculating the checksum may at least partially include a portion of the virtual currency transmission information in the image file.

In addition, the second verification unit 323 of the conversion unit 32 determines that the block chain electronic wallet address corresponding to the user identifier of the sender and/or the recipient in the virtual currency transmission information extracted from the image file is You can verify whether it exists in user information. If the e-wallet address corresponding to the sender's or recipient's user identifier is not previously defined, the virtual currency cannot be transmitted.

The wallet linkage unit 33 uses the block chain electronic wallet addresses of the sender and recipient converted from the virtual currency transmission information, the virtual currency information to be transmitted, and the virtual currency direction information to be transmitted, from the sender to the recipient. Virtual currency transfer to To this end, the wallet linkage unit 33 may communicate with the blockchain network 4.

On the other hand, the wallet linkage unit 33 communicates with an external server 6 such as an exchange server that provides a virtual currency transaction service accompanying virtual currency transmission, or a service server that provides a management service for a blockchain electronic wallet. You can also perform cryptocurrency transfer. For example, the wallet linkage unit 33 may perform a virtual currency transfer by requesting a virtual currency transfer to the external server 6 through communication based on an application programming interface (API).

3 is a flowchart of a simple payment method based on a block chain according to an embodiment.

Hereinafter, a simple payment method based on a block chain according to the present embodiment will be described with reference to FIGS. 2 and 3.

First, user information including the user identifier (eg, ID) of each user and the user's blockchain electronic wallet address is stored in the user management unit 30 of the blockchain-based simple payment system 3 (S1).

For example, it is possible for the user to go through a subscription procedure for a service provided by the blockchain-based simple payment system 3, and match the user's electronic wallet address input from the user with the user's identifier and store it.

Thereafter, when the user wants to transmit the virtual currency to another user, the communication unit 31 provides a UI including an emoticon image to the sender's user device 1 (S2).

The UI may be always provided to the user device 1 that communicates with the blockchain-based simple payment system 3, or may be provided in response to a user's desire to transmit virtual currency.

In addition, the sender can use this UI through a web browser or a predetermined application running on his user device 1.

This UI will be described with reference to FIG. 4 of the accompanying drawings.

4 is a conceptual diagram illustrating a user interface using a simple payment method based on a block chain according to an embodiment.

As shown in Fig. 4 of the attached drawing, a UI including an image type emoticon is provided to a user who wants to transmit a virtual currency using a blockchain-based simple payment system, and the user transmits the virtual currency using an emoticon. The sender's user identifier (eg, ID), the recipient's user identifier, information and quantity of virtual currency (so-called coins) to be transmitted can be input.

In addition, the sender may further input a password for user identification.

When a user requests transmission by clicking a button after inputting necessary information, an image file including the virtual currency transmission information entered by the user is created.

At this time, the generated image file includes an image portion corresponding to an emoticon and a virtual currency transmission information portion corresponding to information input by the user.

To merge such different information into a single file, a steganography technique may be used to hide other text or files in an image file. Alternatively, the image having the binary file format provided by the blockchain-based simple payment system (3) is transformed according to the information entered by the user, and through such transformation, the blockchain-based simple payment system (3) This user's input content can also be specified.

Meanwhile, a part of the image file corresponding to the virtual currency transmission information input by the user or the entire image including the same may be encrypted.

For example, encryption is performed using a user password or a value converted from the user password (e.g., hash value), so that it is decrypted even if the sender or a user other than the blockchain-based simple payment system 3 steals the image. You can make it impossible.

Referring back to FIGS. 2 and 3, after providing the UI, the communication unit 31 receives an image file for virtual currency transmission from the sender's user device 1 (S3).

In this way, when the image file is received, the conversion unit 32 may extract information necessary for virtual currency transmission from the image file received by the communication unit 31, specifically, the image file received from the user device 1 or When a specific part of the image file (eg, virtual currency transmission information) is encrypted, the encrypted file or part is decrypted through the decryption unit 321 of the conversion unit 32 (S4).

Then, the first verification unit 322 of the conversion unit 32 performs verification on whether the received image file is forged or altered (S5).

This is a process of verifying whether or not the image file received from the user device 1 is normally generated using the UI provided by the blockchain-based simple payment system 3. At this time, to prevent a malicious third party from taking an unfair advantage by stealing the sender's user identifier (e.g., ID) and password and then requesting the transfer of virtual currency to the blockchain-based simple payment system (3) using this. Is used for

As a detailed explanation of the above-described verification process, the image file received from the user device 1 is a virtual currency transmission information file inserted in the emoticon image of the UI provided by the blockchain-based simple payment system 3 or the virtual currency transmission A specific part of the image has been transformed using the information.

In this case, the image file may be generated to include checksum information based on information on a region defined in advance of the image file. For example, the image file is a binary file, and the checksum information may be a value obtained by summing values recorded in a specific part of the binary file, or a value obtained by substituting the summed value into a predefined calculation formula.

The first verification unit 322 includes checksum information included in the image file, and the checksum information calculated by the first verification unit 322 according to a predetermined calculation rule using information on a predefined area of the image file. Check whether it matches or not.

If the checksum recorded in the file and the checksum newly calculated based on the information in the file match, the file can be considered to contain a normal user request, but the checksum recorded in the file and the newly calculated checksum based on the information in the file are different. In this case, a malicious third party may be deemed to have generated an image file by stealing user information and may not proceed with the virtual currency transmission procedure accordingly.

It is preferable that the area of the image file, which is the basis for calculating the checksum information, at least partially includes an area in which the virtual currency transmission information input by the user is stored. In this case, when the user inputs the virtual currency transmission information, the checksum information of the image file must be converted according to the contents, so that the risk of information theft by a malicious third party who does not know the calculation rule of the checksum information can be reduced.

After verifying whether forgery or alteration as described above, the conversion unit 32 may extract the virtual currency transmission information from the image file (S6).

However, the order of each step in the flowchart shown in the drawings is exemplary, and according to other embodiments, the process of extracting the virtual currency transmission information from the image file may be performed prior to verification of whether or not forgery or alteration has occurred.

Next, the second verification unit 323 of the conversion unit 32 performs verification of the electronic wallet address of the virtual currency transmission information (S7). This refers to a process of checking whether the blockchain electronic wallet address corresponding to the sender's user identifier and/or the recipient's user identifier entered by the user as the virtual currency transmission information exists in the user information of the user management unit 30. .

At this time, even if the electronic wallet address matching the user identifier exists in the user information, the second verification unit 323 of the conversion unit 32 determines the type of virtual currency to be transmitted, which is designated by the virtual currency transmission information. Further verification can be performed as to whether the corresponding to is correct.

This is because the blockchain e-wallet address is not compatible with other types of blockchains, so for example, if the sender requests to send bitcoins, but the sender's user information contains only the Ethereum e-wallet address, it prevents mistransmissions. It is to do. Conversely, even if the sender requests to transmit bitcoins, but the recipient's user information contains only the Ethereum e-wallet address.

When the above process of extracting and verifying the virtual currency transmission information is completed, the wallet linking unit 33 may execute the virtual currency transfer requested by the user (S8).

This process of transferring virtual currency is a virtual currency transaction corresponding to the transfer of the virtual currency requested by the user by communicating with one or more nodes 41-46 of the blockchain network 4 directly from the wallet linkage unit 33. It may refer to a process of creating and uploading it to one or more nodes 41-46 as a new data block to be recorded in the distributed ledger.

Alternatively, the wallet linkage unit 33 may execute the virtual currency transfer requested by the user in a manner that requests a virtual currency exchange server or an external server 6 that provides a management service for a virtual currency electronic wallet.

In this case, the blockchain-based simple payment system (3) can execute the virtual currency transfer by requesting the transfer of the virtual currency to the external server (6) using an API defined in advance by the external server (6). have.

Thereafter, the communication unit 31 may notify the sender and/or the recipient of the virtual currency transmission status through the emoticon of the UI (S9).

The transfer of virtual currency is not completed only by creating the data block on which the transaction is recorded, but by spreading the data block between nodes 41-46 of the blockchain network 4, connected blocks are created to confirm the transaction. (confirm) must be received.

After a certain number of confirmations, the transaction is confirmed and the virtual currency is transferred.

At this time, the communication unit 31 of the blockchain-based simple payment system 3 uses an emoticon to determine the processing status of the virtual currency transmission requested by the user (e.g., the number of confirmations based on authenticity / transaction completion, etc.) as an emoticon. It can be displayed using.

For example, the communication unit 31 may determine the type, color, number, and/or shape of emoticons transmitted to the user devices 1 and 2 according to the increase in the number of confirmations of the virtual currency transmission or the completion of the virtual currency transaction. Can change. The change of the emoticon may be possible through a UI in which the emoticon is also displayed to the sender in the form of SNS or the like.

Through this, the user can easily check how the transaction requested by the user is proceeding through the change of the emoticon after inputting transmission information necessary for the emoticon as illustrated in FIG. 4.

On the other hand, depending on the design conditions, in the case of the emoticon according to FIG. 4 described above, when the sender inputs the recipient's identifier through the UI, it is determined that the recipient is an unsafe user, and the color of the emoticon or FIG. 4 In the case of a character-type emoticon as described above, an emoticon with a changed expression may be output.

To this end, the blockchain-based simple payment system (3) can store linked emoticons (different only colors, expressions, etc.) according to the emoticon, and forgery and alteration of user information through verification of the conversion unit 32 It is possible to store/manage users who have had a transaction history of transmitted virtual currency transmission information as unsafe users.

Conventional blockchain electronic wallets are very difficult and complex for general users to access because users had to manage electronic wallet addresses of dozens of digits, and as a result, it is easy to cause accidents in transmission of cryptocurrency, and users who exchange cryptocurrency. There was a problem that it was inconvenient to check the transmission details or to communicate with each other.

On the other hand, if the blockchain-based simple payment system according to the embodiments of the present invention described above is used, users can transmit virtual currency by using an emoticon that they are already familiar with through a messenger program. Compared to wallets, it has the advantage of easier and safer cryptocurrency payments due to its superior usability and less chance of accidents.

The operation by the simple payment method based on the block chain according to the above-described embodiments may be implemented at least partially as a computer program and recorded in a computer-readable recording medium.

A program for implementing an operation by a simple payment method based on a block chain according to the embodiments is recorded, and the computer-readable recording medium includes all types of recording devices in which data that can be read by a computer is stored.

Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tapes, floppy disks, and optical data storage devices.

In addition, the computer-readable recording medium may be distributed over a computer system connected through a network, and computer-readable codes may be stored and executed in a distributed manner.

In addition, functional programs, codes, and code segments for implementing this embodiment may be easily understood by those of ordinary skill in the art to which this embodiment belongs.

The present invention described above has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those of ordinary skill in the art will understand that various modifications and variations of the embodiments are possible therefrom.

However, such a modification should be considered to be within the technical protection scope of the present invention.

Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1, 2: user device
3: Blockchain-based simple payment system
4: Blockchain network

Claims (3)

As a virtual currency transmission technology based on user's input of information by using an emoticon, which is an image file provided, without entering an e-wallet address of tens of digits,
In a blockchain-based simple payment system, characterized in that the cryptocurrency transmission information input from the user device is received, verified, and then transmitted to a destination through a plurality of nodes forming a blockchain network,
The blockchain-based simple payment system,
A user management unit configured to store user information including addresses of a plurality of users' blockchain electronic wallets;
A communication unit configured to provide a user interface including an emoticon image to the sender's user device, and to receive an image file including virtual currency transmission information from the user device by using the user interface;
A conversion unit configured to extract the virtual currency transmission information from the image file received from the user device, and convert at least a part of the virtual currency transmission information into a blockchain electronic wallet address by using the information stored in the user management unit; And
Including; a wallet linkage unit configured to execute the transfer of the virtual currency from the sender to the recipient using the cryptocurrency transmission information and the block chain electronic wallet address converted by the conversion unit,
The virtual money transmission information includes sender information, recipient information, virtual currency information, and quantity information,
The sender information and the recipient information correspond to a user identifier included in the user information,
The conversion unit,
(a) a first verification unit configured to verify whether the image file received from the user device is forged or altered; And
(b) performing verification as to whether or not a block chain electronic wallet address corresponding to each of the sender information and the recipient information included in the image file is stored in the user management unit,
(b-1) If the blockchain electronic wallet address is not stored in the user management unit, the virtual currency cannot be transmitted,
(b-2) When the block chain electronic wallet address is stored in the user management unit, the type of the sender or recipient’s block chain electronic wallet address corresponds to the type of cryptocurrency designated by the cryptocurrency transmission information. It includes a second verification unit for additionally verifying whether it is correct,
The blockchain-based simple payment system,
(b-2-1) If the type of the sender's or recipient's blockchain electronic wallet address corresponds to the type of virtual currency designated by the virtual currency transmission information, the virtual currency is transmitted,
(b-2-2) If the type of the sender's or recipient's blockchain electronic wallet address does not correspond to that specified by the virtual currency transmission information, the virtual currency cannot be transmitted,
The blockchain-based simple payment system,
It functions to store an emoticon for each type and a linked emoticon that has different colors or expressions for the emoticon, and to manage a user who has a transaction history of forged virtual currency transmission information as an unsafe user,
The communication unit of the blockchain-based simple payment system,
The processing status of the virtual currency transmission requested by the user using an emoticon is displayed using an emoticon,
It enables identification based on emoticons according to the number of confirmations for the transaction or whether the transaction is completed, so that the user can check the progress of the transaction requested by the user himself.
Block, characterized in that when the sender inputs a recipient in the emoticon, and the recipient is an unsafe user, any one or more selected from the color and expression of the emoticon are changed so that the sender can identify it as an emoticon. Chain-based simple payment system.
The method according to claim 1,
The image file received from the user device is encrypted,
The conversion unit further comprises a decryption unit configured to decrypt the encrypted image file. Blockchain-based simple payment system.
The method according to claim 1,
The first verification unit,
A simple payment system based on a blockchain, characterized in that the image file is verified using checksum information defined based on a preset area of the image file that at least partially includes the virtual currency transmission information.

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