KR102118715B1 - Method for automized remittance using blockchain - Google Patents

Abstract

According to some embodiments of the present invention, disclosed is a computer program stored in a computer readable storage medium. The computer program includes instructions for allowing a sender node included in a blockchain network to perform the following operations of: receiving currency sending contract information including access information on a sender wallet, a sender wallet address, a recipient wallet address, and a currency sending condition from the sender; creating a contract transaction including the sender wallet address, the recipient wallet address, and the currency sending condition; and transmitting the contract transaction to at least one node included in the blockchain network.

Description

Automatic remittance using blockchain {METHOD FOR AUTOMIZED REMITTANCE USING BLOCKCHAIN}

The present disclosure relates to an automatic remittance method using a blockchain, and specifically, to a method for preventing the ownership of cryptocurrency or game currency from being permanently impossible in case of emergency.

Conventionally, access to wallets for managing cryptocurrency has to be done through a private key. Cryptocurrency wallet users have managed the private key by recording the private key on a cold wallet (wallet not connected to the network) or paper in order to escape the risk of hacking the private key.

Existing cryptocurrency wallets cannot access the wallet without knowing the private key. Therefore, if the private key is lost or the person who manages the private key can no longer access the wallet due to death, disappearance, etc., there is a risk that the cryptocurrency belonging to the wallet will be permanently lost.

Therefore, there is a need for a technology capable of preventing the permanent loss of all goods in which transactions are recorded on cryptocurrency and blockchain networks.

Republic of Korea Patent Publication No. 10-2018-0112061

The present disclosure has been devised in response to the background art described above, and is intended to provide an automatic remittance method using blockchain transaction information.

The technical problems of the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

In accordance with some embodiments of the present disclosure for solving the above-described problems, a computer program stored in a computer-readable storage medium is disclosed. The computer program includes instructions for causing a sender node included in the blockchain network to perform the following operations, which include:

Receiving, from the sender, access information on the sender's wallet, currency sender contract information including the sender's sender's wallet address, the receiver's recipient's wallet address, and money transfer conditions; Generating a contract transaction including the sender's wallet address, the recipient's wallet address, and the money transfer condition; And transmitting the contract transaction to at least one node included in the blockchain network. It may include.

In addition, the money transfer condition may be a condition that is satisfied when access to the sender's wallet is not performed for a predetermined period or more.

In addition, the operation of receiving the money transfer contract information includes: receiving contact information related to the recipient together with the money transfer contract information; The operation of transmitting the contract transaction to at least one node included in the blockchain network may include transmitting the contact information to the at least one node included in the blockchain network along with the contract transaction. action; It may include.

In addition, the operation of receiving the money transfer contract information includes: receiving fee rate information set by the recipient together with the money transfer contract information; The contract transaction may further include the commission rate information.

In accordance with some embodiments of the present disclosure for solving the above-described problems, a computer program stored in a computer-readable storage medium is disclosed. As a computer program stored in a computer-readable storage medium, the program includes instructions for causing an execution node included in the blockchain network to perform the following operations, the operations;

Selecting a first contract transaction among at least one contract transaction not recorded as a block in the blockchain network, wherein the first contract transaction includes the first sender's wallet address of the first sender and the first recipient's wallet address of the first recipient And a first money transfer condition; Recognizing whether or not the first money transfer condition included in the first contract transaction is satisfied; Generating a block including the first contract transaction through an agreement algorithm when the first money transfer condition is satisfied; And transmitting the generated block to at least one node included in the blockchain network, causing multiple nodes included in the blockchain network to verify the validity of the block to connect the block to its own blockchain. action; It may include.

In addition, the operation of recognizing whether or not the first currency transfer condition included in the first contract transaction is satisfied includes: recognizing an access record for the first sender wallet address included in the first contract transaction; And based on the connection record, recognizing that the first contract transaction satisfies the first money transfer condition when it is recognized that access to the wallet of the first sender has not been performed for a predetermined period or more. It may include.

In addition, the operation of recognizing whether or not the conditions for transmitting the money included in the first contract transaction are satisfied is when the conditions for transmitting the first money included in the first contract transaction are not satisfied, blocks the blockchain network. Selecting a second contract transaction different from the first contract transaction among at least one contract transaction not recorded with the second contract transaction, the second sender's wallet address of the second sender, and the second recipient of the second recipient Includes wallet address and second currency transfer conditions -; And recognizing whether or not the second currency transmission condition included in the second contract transaction is satisfied. It may include.

In addition, when the first currency transmission condition is satisfied, the operation of generating a block including the first contract transaction through the consensus algorithm may include the second through the consensus algorithm when the second currency transmission condition is satisfied. It may include an operation of generating a block including a contract transaction.

In addition, the operation of recognizing whether the second currency transfer condition included in the second contract transaction is satisfied includes: recognizing an access record for the second sender wallet address included in the second contract transaction; And based on the connection record, recognizing that the second contract transaction satisfies the second money transfer condition when it is recognized that access to the second sender's wallet has not been performed for a predetermined period or more. It may include.

In addition, at least one contract transaction not recorded as a block in the blockchain network may be stored in the memory of the executive node in a tree structure composed of the at least one contract transaction, and may be stored as a block in the blockchain network. The operation of selecting a first contract transaction among at least one unrecorded contract transaction may include selecting one tree node from among a plurality of tree nodes included in the tree structure according to a preset rule. Selecting the first contract transaction; It may include.

In addition, the tree structure may be any one of a binary tree structure, a B tree structure, and a Patricia tree structure.

In addition, the operations include: recognizing contact information related to the first recipient stored in the memory of the executive node; Transmitting a message requesting first access information for the first sender's wallet to the first user terminal of the first recipient based on the contact information; Receiving a signal including the first access information from the first user terminal; Accessing the wallet of the first sender using the first access information; Generating a first transfer transaction for transmitting, to the first recipient wallet, the currency attributed to the first sender wallet, based on the first sender wallet address and the first recipient wallet address; And sending the first transmission transaction to at least one node included in the main blockchain network, thereby causing a plurality of nodes to write the first transmission transaction to the main blockchain network based on an agreement algorithm. It may further include.

In addition, the operations include: recognizing contact information related to the second recipient stored in the memory of the executive node; Transmitting a message requesting second access information about the second sender's wallet to the second user terminal of the second recipient based on the contact information; Receiving a signal including the second access information from the second user terminal; Accessing the wallet of the second sender using the second access information; Generating a second transmission transaction for transmitting the currency attributed to the second sender wallet to the second recipient wallet based on the second sender wallet address and the second recipient wallet address; And sending the second transmission transaction to at least one node included in the main blockchain network, causing a plurality of nodes to write the second transmission transaction to the main blockchain network based on an agreement algorithm. It may further include.

Further, each of the at least one contract transaction not recorded in the blockchain network further includes fee rate information set by the first sender, and is the first of at least one contract transaction not recorded in blocks in the blockchain network. The operation of selecting a contract transaction includes: selecting a contract transaction including the highest fee rate information among the at least one contract transaction as the first contract transaction; It may include.

In addition, the operations include: before generating the first transfer transaction, generating a second transfer transaction that transmits a fee calculated based on the fee rate information included in the first contract transaction to the wallet address of the executive node; And transmitting the second transmission transaction to at least one node included in the main blockchain network in conjunction with transmitting the first transmission transaction to at least one node included in the main blockchain network. It may further include.

According to an embodiment of the present disclosure for solving the above-described problems, a computing device included in a blockchain network is disclosed. Computing devices included in the blockchain network include: a processor; Memory; A communication unit that transmits information to the outside of the computing device or receives information from the outside; Including, wherein the processor, from the sender, the access information for the sender's wallet, the sender's sender's wallet address, the recipient's recipient's wallet address, and currency transfer contract information including the terms of the currency transfer, are received, and the sender's wallet address, It is possible to control the communication unit to generate a contract transaction including the recipient wallet address and the money transfer condition, and to transmit the contract transaction to at least one node included in the blockchain network.

According to an embodiment of the present disclosure for solving the above-described problems, a computing device included in a blockchain network is disclosed. Computing devices included in the blockchain network include: a processor; Memory; A communication unit that transmits information to the outside of the computing device or receives information from the outside; And, the processor selects a first contract transaction among at least one contract transaction not recorded as a block in the blockchain network, wherein the first contract transaction includes a sender's sender's wallet address, a receiver's recipient's wallet address, and Includes first money transfer conditions-recognizes whether the first money transfer conditions included in the first contract transaction are satisfied, and if the first money transfer conditions are satisfied, the first through a consensus algorithm By creating a block containing a contract transaction, and transmitting the generated block to at least one node included in the blockchain network, a plurality of nodes included in the blockchain network verifies the validity of the block to own block It can cause the chain to connect the block.

The technical solutions that can be obtained in the present disclosure are not limited to the above-mentioned solutions, and other solutions that are not mentioned are clearly understood by those skilled in the art from the description below. Will be understandable.

The present disclosure is intended to provide a method for preventing the permanent loss of all goods in which transactions are recorded on cryptocurrency and blockchain networks.

The effects obtainable in the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art from the following description. .

Various aspects are now described with reference to the figures, in which like reference numerals are used collectively to refer to similar elements. In the following embodiments, for illustrative purposes, a number of specific details are presented to provide a holistic understanding of one or more aspects. However, it will be apparent that such aspect(s) may be practiced without these specific details.
1 is a diagram illustrating an example of a system for performing automatic money transfer according to some embodiments of the present disclosure.
2 is a block diagram of a sender node and an executive node in accordance with some embodiments of the present disclosure.
3 is a flowchart illustrating an example of a method in which an originator node, an executive node, and a blockchain network perform automatic money transfer according to some embodiments of the present disclosure.
4 is a diagram illustrating an example of a contract transaction configuration according to some embodiments of the present disclosure.
5 is a flowchart illustrating an example of a method in which a sender node transmits a contract transaction to a blockchain network.
6 is a flowchart showing an example of a method in which an execution node executes a contract transaction.
7 is a flowchart illustrating an example of an operation in which the execution node recognizes whether the first contract transaction satisfies the first money transfer condition.
8 is a diagram illustrating an example of a tree structure in which contract transactions not recorded in blocks are stored.
9 is a flowchart illustrating an example of a method in which an executive node transfers ownership of money from a sender's wallet to a recipient's wallet.
10 is a flowchart illustrating an example of a method of paying a fee when fee rate information is included in a contract transaction.
11 shows a simplified and general schematic diagram of an example computing environment in which some embodiments of the present disclosure can be implemented.

Various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for purposes of explanation, a number of specific details are disclosed to assist in the overall understanding of one or more aspects. However, it will also be appreciated by those skilled in the art of the present disclosure that this aspect(s) can be practiced without these specific details. The following description and the annexed drawings set forth in detail certain illustrative aspects of the one or more aspects. However, these aspects are exemplary and some of the various methods in the principles of the various aspects may be used, and the descriptions described are intended to include all such aspects and their equivalents. Specifically, "an embodiment", "example", "a good", "an example", etc., as used herein is not to be construed as any aspect or design described being better or more advantageous than another aspect or designs. It may not.

Hereinafter, the same or similar components are assigned the same reference numbers regardless of the reference numerals, and overlapping descriptions thereof are omitted. In addition, in the description of the embodiments disclosed herein, when it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed herein, detailed descriptions thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical spirit disclosed herein is not limited by the accompanying drawings.

Although the first, second, etc. are used to describe various elements or components, it goes without saying that these elements or components are not limited by these terms. These terms are only used to distinguish one element or component from another element or component. Therefore, it goes without saying that the first element or component mentioned below may be the second element or component within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings commonly understood by those skilled in the art to which the present invention pertains. In addition, terms defined in the commonly used dictionary are not ideally or excessively interpreted unless specifically defined.

In addition, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or”. That is, unless specified otherwise or unclear in context, "X uses A or B" is intended to mean one of the natural inclusive substitutions. That is, X uses A; X uses B; Or, if X uses both A and B, "X uses A or B" can be applied in either of these cases. It should also be understood that the term “and/or” as used herein refers to and includes all possible combinations of one or more of the listed related items.

Also, the terms “comprises” and/or “comprising” mean that the feature and/or component is present, but excludes the presence or addition of one or more other features, elements, and/or groups thereof. It should be understood as not. In addition, unless otherwise specified or contextually unclear as indicating a singular form, the singular in the specification and claims should generally be construed to mean "one or more."

In addition, the terms "information" and "data" as used herein can often be used interchangeably with each other.

The suffixes "modules" and "parts" for components used in the following description are given or mixed only considering the ease of writing the specification, and do not have meanings or roles that are distinguished from each other.

The objectives and effects of the present disclosure, and technical configurations for achieving them, will be apparent with reference to embodiments described below in detail together with the accompanying drawings. In describing the present disclosure, when it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present disclosure, the detailed description will be omitted. And terms to be described later are terms defined in consideration of functions in the present disclosure, which may vary according to a user's or operator's intention or practice.

However, the present disclosure is not limited to the embodiments disclosed below, and may be implemented in various different forms. Only the present embodiments are provided to make the present disclosure complete, and to fully inform the person of ordinary skill in the art to which the present disclosure belongs, the present disclosure is only defined by the scope of the claims. . Therefore, the definition should be made based on the contents throughout this specification.

1 is a diagram illustrating an example of a system for performing automatic money transfer according to some embodiments of the present disclosure.

As shown in FIG. 1, a system for performing automatic transfer may include a sender node 100, an executive node 200, a receiver terminal 300, a blockchain network 400, and a communication network 500. Can be. The components shown in FIG. 1 are exemplary, and additional components may be present or some of the components shown in FIG. 1 may be omitted.

Although not shown in FIG. 1, the sender node 100, the executive node 200, and the receiver terminal 300 may include a memory, a communication unit, and a processor. The sender node 100, the executive node 200, and the receiver terminal 300 may operate as nodes included in the blockchain network 400.

For convenience of description, it is assumed that the receiver terminal 300 is a separate subject from the blockchain network 400. However, in the present disclosure, it can be interpreted that all operations performed by nodes included in the blockchain network 400 may also be performed by the receiver terminal 300.

In some embodiments of the present disclosure, the blockchain network 400 may mean a plurality of nodes operating based on blockchain technology. Here, the blockchain technology is a distributed storage technology that stores data to be managed in a plurality of nodes included in the blockchain network using a storage structure in which blocks are connected in a chain form.

The blockchain network 400 may store transactions transmitted from the sender node 100 in a block form based on a predetermined consensus algorithm. Data stored in a block form may be shared by a plurality of nodes included in the blockchain network 400.

The blockchain network 400 may include a public blockchain network where arbitrary nodes can perform a consensus operation or a private blockchain network where only predetermined nodes can perform a consensus operation, depending on the implementation form. .

Consensus algorithms performed on the blockchain network 400 according to some embodiments of the present disclosure include: a Proof of Work (PoW) algorithm, a Proof of Stake (PoS) algorithm, a Delegated Proof of Stage (DPoS) algorithm, and a PBFT (Practical) Byzantine Fault Tolerance (DBFT) algorithm, Delegated Byzantine Fault Tolerance (DBFT) algorithm, Redundant Byzantine Fault Tolerance (RBFT) algorithm, Sieve algorithm, Tendermint algorithm, Paxos algorithm, Raft algorithm, Proof of Authority (PoA) algorithm, and/or Proof of PoET Elapsed Time) algorithm.

In some demonstrative embodiments of the present disclosure, nodes in the blockchain network 400 may operate by a blockchain core package according to a hierarchical structure. The hierarchical structure is: a data layer defining the structure of data to be handled in the blockchain network 400, a data layer that manages the data, and a fee paid to miners in the mining process to verify the validity of blocks and to generate blocks Consensus layer in charge of processing, execution layer that processes and executes smart contracts, P2P network protocol, hash function, digital signature, common layer that implements and manages common storage, and various applications are created, processed, and managed Application layer may be included.

In some embodiments of the present disclosure, the blockchain network 400 is an off-chain that is operated separately from the main blockchain network 800 in which transaction details for the currency of the sender and the receiver are stored, side chain or child chain. It may be a child chain.

That is, the blockchain network 400 according to some embodiments of the present disclosure may process the contract transaction as a side chain and then reflect the result to the main blockchain network 800. In some other embodiments, the blockchain network 400 may be a sub-chain of the main blockchain network.

If the blockchain network 400 is maintained as a side chain or a child chain, functions not provided by the main blockchain can be additionally used, and the transaction processing speed can be increased because the main blockchain does not have to wait for the transaction to be processed. Compared to the main blockchain network 800, only relatively few nodes can disclose information necessary for the contract, thereby protecting privacy.

In accordance with some embodiments of the present disclosure, by using the blockchain network 400 in proceeding with automatic remittance, convenience of the remitting party for automatic remittance, transparency and integrity for remittance contract execution may be provided.

The sender node 100, the executive node 200, and the receiver terminal 300 have a mechanism for communicating with at least one other node included in the blockchain network 400 through the communication network 500, and the automatic money transfer It may mean any type of node in the system for performing. For example, the sender node 100, the executive node 200, and the receiver terminal 300 are microprocessors, mainframe computers, digital processors, portable devices, personal computers (PCs), laptop computers, workstations and/or networks. And any electronic device having connectivity. Also, the sender node 100, the executive node 200, and the receiver terminal 300 are any servers implemented by at least one of an agent, an application programming interface (API), and a plug-in. It may include. In addition, the sender node 100, the executive node 200 and the receiver terminal 300 may include an application source and/or a client application.

The sender node 100, the executive node 200, and the receiver terminal 300 may be computing devices included in any blockchain network 400 capable of processing and storing arbitrary data, including a processor, a memory, and a communication unit. You can.

The sender node 100 in FIG. 1 may be associated with a sender or sender who wishes to access the blockchain network 400. The execution node 200 may be associated with any blockchain network participant who accesses the blockchain network 400 and performs automatic transfer. The recipient terminal 300 may be associated with a realistic subject (eg, a natural person or legal person) authorized to access a recipient wallet that is transferred ownership of currency from the sender wallet.

The sender node 100, the executive node 200, and the receiver terminal 300 may operate as nodes included in the blockchain network 400. In this example, the sender node 100, the executive node 200, and the receiver terminal 300 may implement at least one function of a wallet function, a miner function, and a storage function of a full blockchain data. have. For example, when the receiver terminal 300 includes only the wallet function, it may operate as a node that performs transaction and validation (for example, an SPV (Simplified Payment Verification) node).

The sender node 100, the executive node 200, and the receiver terminal 300 can issue a query or transaction to the blockchain network 400. The query in the present disclosure can be used to query contact information of a recipient registered on the blockchain network 400. Transactions in the present disclosure can be used to perform updates (modify/change/delete/add) of data recorded on the blockchain network 400.

The sender node 100, the executive node 200, and the receiver terminal 300 may transmit and receive application sources written in a programming language. For example, the sender node 100, the executive node 200, and the receiver terminal 300 may compile the application source to generate a client application. For example, the generated client application may be executed after being delivered to at least one of the management blockchain networks 400.

Remittance in the present disclosure may include remittance of a cryptocurrency managed through a wallet (wallet, wallet). However, it is not limited to this, and can be applied to all goods managed based on the blockchain.

For convenience of description, it is assumed that the receiver terminal 300 is a separate subject from the blockchain network 400. However, in the present disclosure, it should be interpreted that all operations performed by nodes included in the blockchain network can also be performed by the receiver terminal 300.

The sender node 100, the executive node 200, and the receiver terminal 300 have a display, so as to receive and send information and signals related to automatic money transfer, the sender and the receiver's input are received, and the sender and the receiver are in any form. Can provide the output of

Communication network 500 according to an embodiment of the present disclosure is a public switched telephone network (PSTN), x Digital Subscriber Line (xDSL), Rate Adaptive DSL (RADSL), Multi Rate DSL (MDSL), VDSL Various wired communication systems such as (Very High Speed DSL), Universal Asymmetric DSL (UADSL), High Bit Rate DSL (HDSL) and Local Area Network (LAN) can be used.

In addition, the communication network 500 proposed in the present disclosure is Code Division Multi Access (CDMA), Time Division Multi Access (TDMA), Frequency Division Multi Access (FDMA), Orthogonal Frequency Division Multi Access (OFDMA), SC-FDMA Various wireless communication systems such as (Single Carrier-FDMA) and other systems can be used. The techniques described in this disclosure can be used in the networks mentioned above, as well as in any form of other communication networks.

2 is a block diagram of a sender node and an executive node in accordance with some embodiments of the present disclosure.

As shown in FIG. 2, the sender node 100 and the execution node 200 may include processors 110 and 210, memories 120 and 220, and communication units 130 and 230.

The processors 110 and 210 may be composed of one or more cores, a central processing unit (CPU) of a computing device, a general purpose graphics processing unit (GPGPU), and a tensor processing unit (TPU: tensor processing unit), and the like, and may include any type of processor for performing automatic transfer by executing instructions stored in memory. The processor may read a computer program stored in the memory and perform automatic money transfer according to some embodiments of the present disclosure. The processor may control overall operations of the components of the sender node and the execution nodes 100 and 200 in order to proceed with the automatic money transfer process.

The communication units 130 and 230 may include wired/wireless Internet modules for network access. The communication units 130 and 230 may perform communication with at least one of a node included in the sender node 100, the executive node 200, the receiver terminal 300, the blockchain network 400, and other blockchain networks. have. Wireless Internet technology (Wireless LAN) (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), and HSDPA (High Speed Downlink Packet Access) may be used. As a wired Internet technology, digital subscriber line (XDSL), fibers to the home (FTTH), and power line communication (PLC) may be used.

The aforementioned components are exemplary and the scope of rights of the present disclosure is not limited to the aforementioned components. That is, additional components may be included or some of the aforementioned components may be omitted according to an implementation aspect of the embodiments of the present disclosure.

The sender node 100 and the executive node 200 may further include memories 120 and 220. The memory may store a program for the operation of the processors 110 and 210 and may temporarily or permanently store input/output data. The memory includes a flash memory type, a hard disk type, a multimedia card micro type, a memory of a card type (for example, SD or XD memory, etc.), and a RAM (Random Access). Memory, RAM), SRAM (Static Random Access Memory), ROM (Read-Only Memory, ROM), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory), magnetic memory, magnetic disk, optical disk It may contain at least one type of storage medium. This memory can be operated under control of the processor. Also, in the present disclosure, a memory and a storage unit may be used interchangeably with each other.

The processor 110 of the caller node 100 may control overall operations of the components of the caller node 100 in order to proceed with the automatic money transfer process. In addition, the processor 210 of the executive node 200 may control overall operations of the components of the executive node 200 in order to proceed with the automatic remittance process.

3 is a flowchart illustrating an example of a method in which an originator node, an executive node, and a blockchain network perform automatic money transfer according to some embodiments of the present disclosure.

Referring to FIG. 3, the processor 110 of the sender node 100 controls the communication unit 130 to transmit a contract transaction generated based on information received from the sender to at least one node included in the blockchain network. It can be (S100).

Here, the information received from the sender may be currency transfer contract information including access information to the sender's wallet, sender's wallet address, recipient's wallet address, and money transfer conditions.

The contract transaction 600 may mean a transaction including information necessary for automatic remittance to be performed (for example, information input from a caller in step S100) and conditions for automatic remittance to be performed. And, transmitting the contract transaction to at least one node included in the blockchain network may mean creation and propagation of a contract for automatic remittance to be executed.

By generating and propagating the contract transaction 600 based on the information received from the sender, the contents of the contract transaction 600 can be disclosed to all of at least one node constituting the blockchain network 400. Therefore, the contents of the automatic remittance included in the contract transaction and whether the contract has been executed by including the contract transaction can be disclosed to all nodes constituting the blockchain. Therefore, the transparency and integrity of the automatic money transfer can be guaranteed. Some embodiments of the specific implementation method for this will be described with reference to FIGS. 4 and 5.

After transmitting the contract transaction to the blockchain network 400 in step S100, the processor 210 of the execution node 200 blocks the block including one of the contract transactions not recorded on the blockchain network. The communication unit 230 may be controlled to transmit to at least one node included in the 400.

Specifically, the processor 210 of the execution node 200 may select a contract transaction that satisfies the money transfer condition for automatic money transfer in order to execute the contract transaction. When the contract transaction in which the money transfer condition is satisfied is selected, the processor 210 may generate a block including the contract transaction. The processor 210 may control a communication unit to transmit a block including the contract transaction to at least one node included in the blockchain network 400.

In some embodiments of the present disclosure,'execution' refers to a block including a selected contract transaction by checking whether a specific contract transaction selected among contract transactions not recorded as a block in the blockchain network 400 satisfies a currency transfer condition. It can mean creating.

Transactions recorded once in the blockchain network 400 are almost impossible to be forged and tampered with, so by recording the transaction transaction 600 in the blockchain network 400, the transaction transaction 600 automatically includes the contents. It can be proved that the transfer has been performed. In addition, it is possible to reduce the size of the blockchain by determining whether to perform automatic transfer based on whether a contract transaction has been recorded or not without generating a separate execution transaction. Therefore, it is possible to efficiently maintain the blockchain from a storage space perspective, thereby reducing the burden of full nodes constituting the blockchain network.

After the block including the contract transaction is transmitted to the blockchain network 400 in step S200, each of the at least one node constituting the blockchain network 400 verifies the validity of the received block, and then the block Connect to your own blockchain (S300).

Here, verifying the validity of the block may mean a process of verifying whether the block generated and transmitted by the execution node 200 is effectively generated by the consensus algorithm.

Each node included in the blockchain network 400 may individually store the same blockchain data as other nodes. Each node included in the blockchain network 400 can add a block to its own blockchain and propagate the block to other nodes when the validity of the received block is verified. Therefore, each node included in the blockchain network 400 can all share the same data.

In step S300, as all nodes included in the blockchain network 400 share the same data, it may be difficult to forge and falsify the execution details of the contract transaction. Therefore, the effectiveness and transparency of the automatic money transfer can be guaranteed.

4 is a diagram illustrating an example of a contract transaction configuration according to some embodiments of the present disclosure.

Referring to FIG. 4, the contract transaction 600 may include a block header 610 and a body 620. In addition, the body 620 may include the sender's wallet address 621, the receiver's wallet address 622, the receiver's contact information 623, the currency transfer condition 624, and the fee rate 625 information. However, the present invention is not limited thereto, and the contract transaction 600 may include more or less configurations than the above-described configurations.

A wallet according to some embodiments of the present disclosure may refer to a database storing private and public keys in the blockchain network 400 or software for managing the private and public keys.

Specifically, the wallet may include a non-deterministic wallet, a deterministic wallet, and a hierarchical deterministic wallet. However, the present invention is not limited thereto, and various types of wallets may be wallets in the present disclosure.

The sender wallet address 621 and the receiver wallet address 622 may be defined as key values required to prove or transfer ownership of the currency.

Specifically, in some embodiments of the present disclosure, when a specific UTXO (Unspent Transaction Outputs) points to a sender wallet address or a recipient wallet address, the amount of money recorded in the corresponding UTXO is attributed to the sender or receiver wallet can see.

The sender's wallet address 621 and the receiver's wallet address 622 include a public key corresponding to a private key given when creating the wallet and a hash of the elliptic curve public key. You can. However, it is not limited thereto.

Recipient contact information 623 may include the recipient's email address, cell phone contact, and the like. The receiver contact information 623 is used to request wallet access information to access the sender wallet when transferring ownership of currency from the sender wallet to the recipient wallet after the contract transaction 600 is recorded on the blockchain network 400 Can be used. Here, the recipient may be defined as a realistic subject (for example, a natural person or a legal person) having access to a recipient wallet that transfers ownership of money belonging to the sender wallet after the automatic transfer is executed.

The currency transfer condition 624 may be a condition for executing a transaction by including a contract transaction in a block. The money transfer condition 624 may be satisfied when access to the sender's wallet is not performed for a predetermined period or more. The money transfer condition 624 may be included in the contract transaction 600 as data in a form recognizable by nodes included in the blockchain network 400 including the executive node 200. In some embodiments of the present disclosure, the currency transfer condition 624 may be written in a scripting language used in the main blockchain network or the blockchain network 400.

The fee rate 625 is the price of including the contract transaction 600 in the block and recording it in the blockchain network 400 to perform automatic transfer, and may be defined as a ratio of the fee to the transmitted currency value. In some embodiments of the present disclosure, the fee may be proportional to the amount of money included in the sender's wallet. In addition, the entity (eg, the execution node 200) that includes the contract transaction in the block can obtain a fee and a price for block creation.

By including necessary information regarding the contents of the automatic transfer in the contract transaction, it is possible to check whether all the subjects participating in the blockchain network 400 have made the automatic transfer according to the contents of the contract transaction. Therefore, the transparency of the automatic money transfer is guaranteed. In addition, an incentive for contract execution can be provided by allowing a subject to include a contract transaction 600 in a block to obtain a commission. Therefore, it is possible to raise the desire for the execution of contracts by the subjects participating in the blockchain network 400.

5 is a flowchart illustrating an example of a method in which a sender node transmits a contract transaction to a blockchain network.

Referring to FIG. 5, the processor 110 of the sender node 100 may receive currency transfer contract information from the sender including access information about the sender wallet, the sender wallet address, the receiver wallet address, and the conditions for sending money ( S110).

Here, the sender may be a real subject (eg, a natural person or a legal person) having access to the sender's wallet.

For example, the sender may include an inheritee, a contracting party, and a game guild length. However, this is only an example, and the type of the sender is not limited to the above-described example.

As described above, in some embodiments of the present disclosure, the wallet may refer to a database in which the private and public keys are stored in the blockchain network 400 and software for managing the private and public keys.

In some embodiments of the present disclosure, the wallet may include a non-deterministic wallet, a deterministic wallet and a hierarchical deterministic wallet. However, the present invention is not limited thereto, and various types of wallets may be wallets in the present disclosure.

The access information to the sender's wallet may refer to information necessary to access the sender's wallet.

For example, access information to the sender's wallet may include an exchange ID/password, the sender's wallet's private key, and mnemonic.

In some embodiments of the present disclosure, the money transfer contract information may include the above-mentioned access information to the sender's wallet, the sender's wallet address, the recipient's wallet address, and the currency transfer condition. In this case, the processor 110 may receive contact information related to the recipient and fee rate information set by the recipient together with the money transfer contract information. However, the money transfer contract information is not limited to the above.

As described above, all the nodes participating in the blockchain network 400 can check the contents of each of the contract transactions 600 by allowing the contract transaction 600 to describe the contract information regarding automatic transfer. In addition, the money transfer contract can be adjusted to suit each sender and receiver.

After receiving the money transfer contract information, which is the information required to generate the contract transaction from the sender in step S110, the processor 110 contracts the transaction including the sender's wallet address, the recipient's wallet address, the currency transfer condition, and the recipient's contact information. (600) may be generated (S120).

In some embodiments of the present disclosure, the contract transaction 600 may mean a transaction including currency transfer contract information necessary for automatic remittance to be performed and conditions for automatic remittance to be performed. When the processor 110 receives the fee rate information in step S110, the contract transaction 600 may include the fee rate information. Details of the contract transaction 600 have been described above with reference to FIG. 4 and will be omitted here.

After generating the contract transaction in step S120, the processor 110 of the sender node 100 transmits the communication unit 130 to transmit the contract transaction 600 to at least one node included in the blockchain network 400. It can be controlled (S130).

On the other hand, if the processor 110 receives contact information related to the recipient in step S110, the sender node 100 includes the contact information related to the recipient in the blockchain network 400 together with the contract transaction 600. It can be transmitted to at least one node.

Each of the at least one node included in the blockchain network 400 that has received the contract transaction 600 may store the received unconfirmed contract transaction in a memory in the node (S140).

Each node included in the blockchain network 400 may review whether the transaction is valid upon receiving the contract transaction 600. When the validity of the transaction is verified, the uncommitted (contracted transaction that is executed and not included in the block) in the memory pool may be updated to store the uncommitted transaction in the memory in the node.

Here, the memory pool may mean a space in which contract transactions 600 not yet included in a block are stored.

When the transferred transaction transaction is stored in the memory pool as described above, the automatic remittance agreement can be executed only by propagating the transaction transaction 600 by including it in the block. Therefore, it is easy to check whether the contract transaction 600 is executed, and the size of the blockchain is reduced because a separate transaction is not required. Therefore, it is possible to reduce the storage space burden of individual nodes.

In step S140, after each node included in the blockchain network stores the unconfirmed contract transaction 600 in memory, the processor 110 of the sender node 100 receives access information about the sender's wallet and contacts associated with the receiver. The communication unit 130 may be controlled to transmit to the receiver terminal based on the information (S150). However, the execution time of step S150 is not limited to that disclosed in FIG. 3. Therefore, step S150 may be performed simultaneously with step S140, and may be performed prior to step S140.

Meanwhile, the receiver terminal 300 may store access information on the received sender wallet in the memory (S160). When the money transfer condition 624 is satisfied and the contract transaction 600 is recorded in the blockchain network 400, the receiver terminal 300 can transmit the stored access information of the sender's wallet to the execution node 200. have. Accordingly, the execution node 200 may access the sender's wallet and perform the transfer of money. The details of the execution of the money transmission by the execution node 200 will be described in detail in FIG. 9.

According to the automatic transfer method using the above-described block chain, even if the sender cannot access the sender's wallet due to death, accident, disappearance, etc., the permanent loss of money can be prevented. In addition, the conditions for automatic remittance and the recipient contact information are registered on the blockchain and shared equally among all network participating nodes, so that the automatic remittance transaction can be performed transparently as described in the contract transaction.

6 is a flowchart showing an example of a method in which an execution node executes a contract transaction.

Referring to FIG. 6, the processor 210 of the execution node 200 may select a first contract transaction among at least one contract transaction not recorded as a block in the blockchain network (S210).

Here, the first contract transaction may include the first sender's wallet address of the first sender, the first recipient's wallet address of the first recipient, and the first money transfer condition.

In some embodiments of the present disclosure, at least one contract transaction 600 that is not recorded as a block is a node included in the blockchain network 400 because the contract transaction 600 is generated but does not satisfy the currency transfer condition 624 Refers to the contract transaction stored in each memory.

In the present disclosure, selecting the first contract transaction may include the processor 210 randomly selecting one of the contract transactions not recorded as a block or selecting a transaction not recorded in the block according to a preset rule. . Selecting a transaction according to a preset rule will be described in detail in FIG. 8.

According to some embodiments of the present disclosure, contract transaction 600 may include fee rate 625 information. In this case, the processor 210 may select a contract transaction having the highest commission rate among contract transactions not recorded as blocks stored in the memory as the first contract transaction.

After selecting the first contract transaction in step S210, the processor 210 may recognize whether the first money transfer condition is satisfied (S220).

In some embodiments of the present disclosure, the processor 210 may recognize whether the first currency transmission condition is satisfied based on whether the caller has not accessed the wallet for a predetermined period or more. That is, the first money transfer condition may be satisfied when the caller has not accessed the wallet for a predetermined period or more.

For example, if the period in which access to the sender's wallet should not be made (ie, the preset period) is 1 year as a condition for transmitting money, and the recent access record for the sender's wallet address is 2018.04.20, the processor 210 ) May recognize that access to the sender's wallet has not been performed for more than a predetermined period (1 year) at 2019.4.23.

Recognizing whether the first currency transmission condition is satisfied means determining whether the transmission condition is satisfied by checking the first currency transmission condition included in the first contract transaction. If the first contract transaction does not satisfy the first money transfer condition, the processor 210 may select a second contract transaction different from the first contract transaction among contract transactions not recorded as a block.

Details of this will be described later in FIG. 7.

The processor 210 may recognize whether the first money transfer condition is satisfied in step S220 and then generate a block including the first contract transaction based on the consensus algorithm (S230).

The consensus algorithm may refer to a procedure for generating a valid block when creating a new block. Through the consensus algorithm, all of at least one node included in the blockchain network 400 can maintain the same transaction record. Since the details of the consensus algorithm have been described in FIG. 1, they are not described herein.

According to some embodiments of the present disclosure, the processor 210 may obtain an authority to generate a block after recognizing that the first contract transaction satisfies the first money transfer condition. If the first contract transaction does not satisfy the first money transfer condition, the processor 210 can select the second contract transaction, and if the second contract transaction satisfies the second money transfer condition, the second contract transaction You can create included blocks.

As described above, the authority to generate a block is obtained only after recognizing that the first contract transaction satisfies the first money transfer condition (or after recognizing that the second contract transaction satisfies the second currency transfer condition), Only an node that has made efforts to find a contract transaction that satisfies the terms of money transfer is authorized to receive compensation for block generation, so that the automatic remittance method system can be maintained smoothly.

After generating the block containing the first contract transaction in step S230, the execution node 200 may transmit the block including the first contract transaction to at least one node included in the blockchain network (S240). .

After verifying the validity of the block received in step S240, the plurality of nodes included in the blockchain network 400 may connect the verified block to the blockchain stored in its memory (S250). Through this, all nodes included in the blockchain network 400 can continuously maintain the same transaction record.

7 is a flowchart illustrating an example of an operation in which the execution node recognizes whether the first contract transaction satisfies the first money transfer condition.

Referring to FIG. 7, the processor 210 of the execution node 200 may recognize a connection record for the sender's wallet address included in the selected contract transaction (S211).

This is for the processor 210 to check whether the first money transfer condition is satisfied. More specifically, this is for the processor 210 to check whether a predetermined period has elapsed in order to confirm whether the caller has not accessed the sender's wallet for a predetermined period or more.

In some embodiments of the present disclosure, the processor 210 may store the caller's access record in the memory 220 or check the caller's access record through an entity outside the blockchain network 400.

After recognizing the connection record of the sender's wallet address in step S211, the processor 210 may check whether access to the sender's wallet has not been performed for a predetermined period or more (S212).

When the processor 210 recognizes that the access to the sender's wallet has been performed within a predetermined period (S212, No), the contract transaction may be selected again from at least one contract transaction not recorded as a block in the blockchain network. Yes (S213). That is, when the first currency transfer condition included in the first contract transaction is not satisfied, the processor 210 may use a second contract transaction different from the first contract transaction among contract transactions not recorded as blocks stored in the memory 220. By selecting, it is possible to check again whether the second currency transmission condition included in the second contract transaction is satisfied.

On the other hand, when the processor 210 recognizes that access to the sender's wallet has not been performed for a predetermined period or more (S212, Yes), the contract transaction may recognize that the contract transaction condition is satisfied (S214).

As described above, in the present disclosure, expressions such as first and second are merely exemplary descriptions, and the processor 210 repeatedly performs the exemplary operation disclosed in FIG. 7 for the entire contract transaction not recorded as a block. Can be.

8 is a diagram illustrating an example of a tree structure in which contract transactions not recorded in blocks are stored.

The tree structure 700 is a kind of graph, and may mean a connection graph without cycles. The tree structure 700 may be composed of a set of data structures having key values, which may be generally referred to as “tree nodes”.

In some embodiments of the present disclosure, at least one contract transaction not recorded as a block in the blockchain network 400 is a blockchain network 400 in a tree structure 700 that includes each of the at least one contract transaction as a tree node. ) May be stored in the memory of the nodes constituting (eg, the execution node 200 ).

At this time, a balanced binary tree such as a binary tree, AVL tree, red-black tree, B-tree, and Patricia may be used as the tree structure 700.

The operation of selecting the first contract transaction among at least one contract transaction not recorded in the blockchain network 400 is based on a preset rule when contract transactions not recorded as a block are stored in the tree structure 700. By selecting one tree node among the plurality of tree nodes included in the tree structure 700, the first contract transaction among the at least one contract transaction may be selected.

Here, the preset rule for selecting a tree node may be different according to the tree structure 700. For example, when the tree structure is a heap, a preset rule may be to select a tree node located at the root of the tree.

By storing the contract transaction that is not recorded as a block in the blockchain network 400 as a tree structure 700, the time required to search for the contract transaction to select the first contract transaction can be shortened. For example, if n contract transactions are stored in a memory pool without being recorded in blocks, if the contract transactions are randomly stored, the worst case n times are selected to select the first contract transaction that satisfies the first currency transfer condition. Search may be required. However, if the contract transaction is stored in a tree structure, even in the worst case, the first contract transaction that satisfies the first money transfer condition can be selected only by searching n times or less, so that the automatic transfer method can be efficiently performed.

9 is a flowchart illustrating an example of a method in which an executive node transfers ownership of money from a sender's wallet to a recipient's wallet.

That is, the contents shown in FIG. 9 are recorded in the blockchain network 400 (shown in FIGS. 6 and 7) after the execution node 200 includes one of the contract transactions not recorded as a block in the block. It may be the operation of.

Referring to FIG. 9, the processor 210 of the executive node 200 may recognize contact information related to a recipient stored in the memory 220 (S410).

After the processor 210 recognizes the contact information related to the recipient in step S410, the processor 210 transmits a message requesting access information about the sender's wallet to the recipient's user terminal based on the recipient contact information through the communication unit 230 It can be (S420).

In some embodiments of the present disclosure, the user terminal may include a management server associated with the user's mail account, a management server associated with the user's mobile phone contact, PC and mobile device, and the like. The user terminal is not limited to this example, and may include any device capable of receiving a message transmitted from the execution node 200.

In some embodiments of the present disclosure, the message may include all data that can be transmitted to the user terminal, including access information to the sender's wallet. That is, the message may include an email, a text message on a mobile phone, and the like.

As described above, by receiving directly from the user terminal without recording access information on the sender's wallet on the blockchain network shared to all nodes, the private key (or Nemonic for the private key) and exchange ID for accessing the sender's wallet And personal information such as a password.

In step S430, as the access information on the sender's wallet is transmitted to the execution node 200, the execution node 200 may receive information on the sender's wallet (S440).

The execution node S450 may access the sender's wallet using the access information of the received sender's wallet (S450).

In some embodiments of the present disclosure, access means obtaining a transfer right for the wallet account. That is, when accessing the wallet account, it is possible to exercise the authority for the money attributed to the wallet account. Accordingly, when the processor 210 of the executive node 200 accesses the sender's wallet, the executive node may transmit the currency attributed to the sender's wallet to the recipient wallet address included in the contract transaction.

After accessing the sender's wallet in step S450, the processor 210 may generate a first transmission transaction for transmitting the money attributed to the sender's wallet to the receiver's wallet (S460).

Here, when a currency belongs to a wallet, it means that the data object representing the value of the currency points to a specific wallet, or the wallet account data structure identified by the wallet address contains data representing the size or value of the currency. .

Specifically, when the data object representing the monetary value corresponds to the UTXO of bitcoin, if the corresponding UTXO points to the sender's wallet or the recipient's wallet, the amount of bitcoin indicated by the corresponding UTXO belongs to the sender's wallet or the recipient's wallet can see. In addition, if the wallet account data structure identified by the wallet address is Ethereum's Externally Owned Accounts (EOA), the value of the value included in the Ethereum wallet account of the sender or recipient is ether. Can be considered to belong to the sender or receiver wallet. However, in the present disclosure, the currency does not include only the specific type of cryptocurrency described above, and may also include other types of cryptocurrency and game currency.

As described above, when a first transmission transaction is generated to transmit a currency belonging to the sender's wallet to the receiver's wallet based on the contents of the contract transaction, when the first transmission transaction is recorded in the main blockchain network 800 as described below , The blockchain network 400 and the main blockchain network 800 leave transaction results that cannot be forged and tampered with in the two blockchain networks. Therefore, all nodes participating in the blockchain network 400 can verify whether or not money ownership has been transferred from the sender's wallet to the receiver's wallet as recorded in the first contract transaction, thereby proving that the automatic transfer was correctly performed.

The transfer transaction may refer to a data object representing the transfer of ownership of money. Specifically, when money is transmitted from the sender's wallet to the receiver's wallet, the transfer transaction may include data indicating that a certain amount of money has been transmitted from the sender's wallet to the receiver's wallet.

After generating the first transmission transaction in step S460, the processor 210 may transmit the first transmission transaction to at least one node included in the main blockchain network through the communication unit 230 (S470).

As described in FIG. 1, the blockchain network 400 is a network for storing and storing off-chains in which contract transactions generated by the sender node 100 are recorded. As a type of the off-chain, side chains and child chains, etc. It may include. Accordingly, the main blockchain network 800 may be defined as a network in which a blockchain in which transactions related to ownership transfer of real money are recorded is distributed based on the results recorded in the contract transaction.

Specifically, the main blockchain network 800 includes not only blockchain networks related to existing cryptocurrencies such as bitcoin, Litecoin, Ethereum or EOS, but also game currency, cyber money and It may mean a blockchain network related to a blockchain in which transmission history of various virtual goods is recorded.

The main blockchain network 800 that received the first transmission transaction transmitted in step S470 may record the received first transmission transaction in the main blockchain network 800 based on the consensus algorithm (S480). .

As described through FIG. 9, by automatically reflecting the execution result of the contract transaction in the blockchain network 400 corresponding to the off-chain in the main blockchain network 800, it is confirmed that the automatic remittance has been performed as the contents of the contract transaction. The contract transaction can be executed as it is, even if the sender cannot access the wallet. Therefore, even in a situation in which the caller has no access to the wallet in an inevitable situation (death, disappearance, etc.), permanent loss of money can be prevented.

10 is a flowchart illustrating an example of a method of paying a fee when fee rate information is included in a contract transaction.

Referring to FIG. 10, the processor 210 of the execution node 200 may recognize the fee rate information included in the selected contract transaction after accessing the sender's wallet in step S450 of FIG. 9 (S461 ). .

Based on the fee rate information recognized in step S461 and the size of the currency attributed to the wallet accessed in step S450, the processor 210 may calculate the fee (S462).

The processor 210 may generate a second transmission transaction that transmits the fee calculated in step S462 to the wallet address of the executive node. This is to send a fee before sending money from the sender's wallet to the receiver's wallet.

The processor 210 may transmit the second transmission transaction generated in step S463 to at least one node included in the main blockchain network through the communication unit 230 (S464).

By transmitting to at least one node included in the main blockchain network, a plurality of nodes included in the main blockchain network can record the first transmission transaction in the main blockchain network through an agreement algorithm.

In step S464, after transmitting the second transmission transaction to at least one node included in the main blockchain network, the processor 210 generates a first transmission transaction that transmits the currency attributed to the sender wallet to the receiver wallet. It can be (S465).

Since the first transmission transaction is recorded in the main blockchain network, it cannot be guaranteed that a fee associated with recording the first transmission transaction is received by the subject associated with the execution node 200. According to the disclosure through FIG. 10, it is possible to guarantee a fee in exchange with a subject who executed a contract on the blockchain network 400. Through this, it is possible to raise the desire for the execution of the contract of the nodes (ie, participants of the blockchain network) included in the blockchain network 400.

11 shows a simplified and general schematic diagram of an example computing environment in which some embodiments of the present disclosure can be implemented.

The computer 1102 illustrated in FIG. 11 may correspond to at least one of a computing device included in the sender node 100, the executive node 200, the receiver terminal 300, and the blockchain network 400.

Although the present disclosure has been described above in general with respect to computer-executable instructions that may be executed on one or more computers, those skilled in the art can appreciate that the present disclosure can be implemented in combination with other program modules and/or as a combination of hardware and software. You will know.

In general, modules herein include routines, procedures, programs, components, data structures, etc. that perform particular tasks or implement particular abstract data types. In addition, those of ordinary skill in the art may appreciate that the methods of the present disclosure include single-processor or multiprocessor computer systems, minicomputers, mainframe computers as well as personal computers, handheld computing devices, microprocessor-based or programmable consumer electronics, and the like (each of which is It will be appreciated that it may be implemented with other computer system configurations, including those that may operate in conjunction with one or more associated devices.

The described embodiments of the present disclosure can also be practiced in distributed computing environments where certain tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote memory storage devices.

Computers typically include a variety of computer readable media. Computer-accessible media include volatile and non-volatile media, transitory and non-transitory media, removable and non-removable media. By way of example, and not limitation, computer readable media may include computer readable storage media and computer readable transmission media.

Computer-readable storage media are volatile and non-volatile media, temporary and non-transitory media, removable and non-removable media implemented in any method or technology for storing information such as computer readable instructions, data structures, program modules or other data Includes media. Computer-readable storage media may include RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital video disk (DVD) or other optical disk storage device, magnetic cassette, magnetic tape, magnetic disk storage device or other magnetic storage Device, or any other medium that can be accessed by a computer and used to store desired information.

Computer readable transmission media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and Includes all information delivery media. The term modulated data signal means a signal in which one or more of the characteristics of the signal are set or changed to encode information in the signal. By way of example, and not limitation, computer readable transmission media includes wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, RF, infrared, and other wireless media. Combinations of any of the above described media are also intended to be included within the scope of computer readable transmission media.

An exemplary environment 1100 is shown that implements various aspects of the present disclosure, including a computer 1102, and the computer 1102 includes a processing device 1104, a system memory 1106, and a system bus 1108. do. System bus 1108 connects system components, including, but not limited to, system memory 1106 to processing device 1104. The processing device 1104 can be any of a variety of commercial processors. Dual processor and other multiprocessor architectures may also be used as the processing unit 1104.

The system bus 1108 can be any of several types of bus structures that can be further interconnected to a memory bus, peripheral bus, and local bus using any of a variety of commercial bus architectures. System memory 1106 includes read-only memory (ROM) 1110 and random access memory (RAM) 1112. A basic input/output system (BIOS) is stored in a non-volatile memory 1110 such as ROM, EPROM, EEPROM, etc. This BIOS is a basic to help transfer information between components in the computer 1102 at the same time as during startup. Contains routines. The RAM 1112 may also include high-speed RAM, such as static RAM for caching data.

Computer 1102 also has an internal hard disk drive (HDD) 1114 (eg, EIDE, SATA)—this internal hard disk drive 1114 can also be configured for external use within a suitable chassis (not shown). Yes, magnetic floppy disk drive (FDD) 1116 (e.g., for reading from or writing to removable diskette 1118), and optical disk drive 1120 (e.g., CD-ROM Disc 1122, or for reading from or writing to other high-capacity optical media such as DVDs). The hard disk drive 1114, the magnetic disk drive 1116, and the optical disk drive 1120 are the system bus 1108 by the hard disk drive interface 1124, the magnetic disk drive interface 1126, and the optical drive interface 1128, respectively. ). The interface 1124 for implementing an external drive includes, for example, at least one of Universal Serial Bus (USB) and IEEE 1394 interface technology, or both.

These drives and their associated computer-readable media provide non-volatile storage of data, data structures, computer-executable instructions, and the like. In the case of computer 1102, drives and media correspond to storing any data in a suitable digital format. Although the above description of computer readable storage media refers to HDDs, removable magnetic disks, and removable optical media such as CDs or DVDs, those of ordinary skill in the art can use a zip drive, magnetic cassette, flash memory card, cartridge, It will be appreciated that other types of storage media readable by computers, etc., may also be used in the exemplary operating environment and that any such media may include computer-executable instructions for performing the methods of the present disclosure. .

A number of program modules may be stored in the drive and RAM 1112, including the operating system 1130, one or more application programs 1132, other program modules 1134, and program data 1136. All or part of the operating system, applications, modules, and/or data may also be cached in RAM 1112. It will be appreciated that the present disclosure can be implemented in various commercially available operating systems or combinations of operating systems.

The user may input commands and information to the computer 1102 through one or more wired/wireless input devices, for example, pointing devices such as a keyboard 1138 and a mouse 1140. Other input devices (not shown) may include a microphone, IR remote control, joystick, game pad, stylus pen, touch screen, etc. These and other input devices are often connected to the processing unit 1104 through an input device interface 1142 connected to the system bus 1108, but the parallel port, IEEE 1394 serial port, game port, USB port, IR interface, And other interfaces.

The monitor 1144 or other type of display device is also connected to the system bus 1108 through an interface such as a video adapter 1146. In addition to the monitor 1144, the computer generally includes other peripheral output devices (not shown), such as speakers, printers, and the like.

The computer 1102 can operate in a networked environment using logical connections to one or more remote computers, such as remote computer(s) 1148 via wired and/or wireless communication. The remote computer(s) 1148 can be a workstation, server computer, router, personal computer, portable computer, microprocessor-based entertainment device, peer device, or other conventional network node, typically for computer 1102. It includes many or all of the described components, but for simplicity, only the memory storage device 1150 is shown. The illustrated logical connections include wired/wireless connections to a local area network (LAN) 1152 and/or a larger network, such as a wide area network (WAN) 1154. Such LAN and WAN networking environments are common in offices and companies, and facilitate enterprise-wide computer networks, such as intranets, all of which can be connected to computer networks around the world, such as the Internet.

When used in a LAN networking environment, the computer 1102 is connected to the local network 1152 via a wired and/or wireless communication network interface or adapter 1156. The adapter 1156 may facilitate wired or wireless communication to the LAN 1152, which also includes a wireless access point installed therein to communicate with the wireless adapter 1156. When used in a WAN networking environment, the computer 1102 may include a modem 1158, connect to a communication server on the WAN 1154, or otherwise establish communication over the WAN 1154, such as through the Internet. Have a means The modem 1158, which may be an internal or external and wired or wireless device, is connected to the system bus 1108 via a serial port interface 1142. In a networked environment, program modules described for the computer 1102 or portions thereof may be stored in the remote memory/storage device 1150. It will be appreciated that the illustrated network connection is exemplary and other means of establishing a communication link between computers can be used.

The computer 1102 is associated with any wireless device or object that is deployed and operates in wireless communication, such as a printer, scanner, desktop and/or portable computer, a portable data assistant (PDA), communication satellite, or wireless detectable tag. It operates to communicate with any equipment or place and telephone. This includes at least Wi-Fi and Bluetooth wireless technology. Accordingly, the communication may be a predefined structure as in a conventional network or simply ad hoc communication between at least two devices.

Wi-Fi (Wireless Fidelity) enables a connection to the Internet or the like without a wired connection. Wi-Fi is a wireless technology such as a cell phone that allows a computer, for example, a computer to transmit and receive data indoors and outdoors, ie anywhere within the base station's coverage area. Wi-Fi networks use a wireless technology called IEEE 802.11 (a,b,g, etc.) to provide a secure, reliable and high-speed wireless connection. Wi-Fi can be used to connect computers to each other, to the Internet, and to a wired network (using IEEE 802.3 or Ethernet). Wi-Fi networks can operate in unlicensed 2.4 and 5 GHz radio bands, for example, at 11 Mbps (802.11a) or 54 Mbps (802.11b) data rates, or in products that include both bands (dual band). have.

Those of ordinary skill in the art of the present disclosure may use various examples of logical blocks, modules, processors, means, circuits and algorithm steps described in connection with the embodiments disclosed herein in electronic hardware, (convenience For this, it will be understood that it may be implemented by various forms of program or design code (referred to herein as “software”) or a combination of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the particular application and design constraints imposed on the overall system. Those skilled in the art of the present disclosure may implement the functions described in various ways for each particular application, but such implementation decisions should not be interpreted as being outside the scope of the present disclosure.

Various embodiments presented herein can be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term “manufactured article” includes a computer program, carrier, or media accessible from any computer-readable device. For example, computer-readable storage media include magnetic storage devices (eg, hard disks, floppy disks, magnetic strips, etc.), optical disks (eg, CDs, DVDs, etc.), smart cards, and flashes. Memory devices (eg, EEPROMs, cards, sticks, key drives, etc.), but are not limited to these. The term “machine-readable medium” includes, but is not limited to, wireless channels and various other media capable of storing, retaining, and/or transferring command(s) and/or data.

It is understood that the specific order or hierarchy of steps in the processes presented is an example of exemplary approaches. Based on design priorities, it is understood that within the scope of the present disclosure, a specific order or hierarchy of steps in the processes may be rearranged. The accompanying method claims provide elements of the various steps in a sample order, but are not meant to be limited to the specific order or hierarchy presented.

Descriptions of the presented embodiments are provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art of the present disclosure, and the general principles defined herein can be applied to other embodiments without departing from the scope of the present disclosure. Thus, the present disclosure should not be limited to the embodiments presented herein, but should be interpreted in the broadest scope consistent with the principles and novel features presented herein.

The scope of the right to the method in the claims of the present disclosure is caused by the functions and features described in the respective stages, and the scope of the claim in each stage constituting the method is not specified unless the precedence relationship is specified. The order of entry of each step in is unaffected. For example, in the claims described in a method including steps A and B, even if step A is described before step B, the scope of rights is not limited to that step A must precede step B.

Claims (17)

As a computer program stored in a computer-readable storage medium, the program causes a sender node included in a blockchain network to perform the following operations, the operations being;
Receiving, from the sender, access information on the sender's wallet, currency sender contract information including the sender's sender's wallet address, the receiver's recipient's wallet address, and money transfer conditions;
Generating a contract transaction including the sender's wallet address, the recipient's wallet address, and the money transfer condition; And
Transmitting the contract transaction to at least one node included in the blockchain network;
Containing,
A computer program stored on a computer readable storage medium.
According to claim 1,
The money transfer conditions,
A condition that is satisfied when access to the sender's wallet is not performed for a predetermined period or more
A computer program stored on a computer readable storage medium.
According to claim 1,
The operation of receiving the money transfer contract information,
Receiving contact information related to the recipient together with the money transfer contract information;
Including,
The operation of transmitting the contract transaction to at least one node included in the blockchain network is
Transmitting the contact information together with the contract transaction to at least one node included in the blockchain network;
Containing,
A computer program stored on a computer readable storage medium.
According to claim 1,
The operation of receiving the money transfer contract information,
Receiving the fee rate information set by the recipient together with the money transfer contract information;
Including,
The contract transaction,
Further comprising the fee rate information,
A computer program stored on a computer readable storage medium.
As a computer program stored in a computer-readable storage medium, the program includes instructions for causing an execution node included in the blockchain network to perform the following operations, the operations being;
Selecting a first contract transaction from at least one contract transaction not recorded as a block in the blockchain network, wherein the first contract transaction is the first sender's wallet address of the first sender, and the first recipient's wallet address of the first recipient And a first money transfer condition;
Recognizing whether or not the first money transfer condition included in the first contract transaction is satisfied;
Generating a block including the first contract transaction through an agreement algorithm when the first money transfer condition is satisfied; And
By sending the generated block to at least one node included in the blockchain network, an operation causing a plurality of nodes included in the blockchain network to verify the validity of the block to connect the block to its own blockchain ;
Containing,
A computer program stored on a computer readable storage medium.
The method of claim 5,
The operation of recognizing whether or not the first currency transmission condition included in the first contract transaction is satisfied is:
Recognizing an access record for the first sender wallet address included in the first contract transaction; And
Recognizing that the first contract transaction satisfies the first money transfer condition when it is recognized that access to the wallet of the first sender has not been performed for a predetermined period or more based on the connection record;
Containing,
A computer program stored on a computer readable storage medium.
The method of claim 5,
The operation of recognizing whether or not the money transfer condition included in the first contract transaction is satisfied is:
If the first money transfer condition included in the first contract transaction is not satisfied, selecting a second contract transaction different from the first contract transaction among at least one contract transaction not recorded as a block in the blockchain network Operation-the second contract transaction includes a second sender's second sender's wallet address, a second recipient's second recipient's wallet address, and a second currency transfer condition -; And
Recognizing whether or not the second currency transmission condition included in the second contract transaction is satisfied;
Containing,
A computer program stored on a computer readable storage medium.
The method of claim 7,
When the first currency transfer condition is satisfied, the operation of generating a block including the first contract transaction through an agreement algorithm is:
And generating a block including the second contract transaction through an agreement algorithm when the second currency transmission condition is satisfied.
A computer program stored on a computer readable storage medium.
The method of claim 8,
The operation of recognizing whether or not the second currency transmission condition included in the second contract transaction is satisfied is:
Recognizing an access record for the second sender wallet address included in the second contract transaction; And
Recognizing that the second contract transaction satisfies the second money transfer condition when it is recognized that access to the wallet of the second sender has not been performed for a predetermined period or more based on the connection record;
Containing,
A computer program stored on a computer readable storage medium.
The method of claim 5,
At least one contract transaction not recorded as a block in the blockchain network,
A tree structure composed of the at least one contract transaction is stored in the memory of the execution node,
The operation of selecting a first contract transaction among at least one contract transaction not recorded as a block in the blockchain network is
Selecting the first contract transaction among the at least one contract transaction by selecting one tree node among a plurality of tree nodes included in the tree structure according to a preset rule;
Containing,
A computer program stored on a computer readable storage medium.
The method of claim 10,
The tree structure,
Binary tree structure, B tree structure and Patricia tree structure.
A computer program stored on a computer readable storage medium.
The method of claim 5,
Recognizing contact information related to the first recipient stored in the memory of the executive node;
Transmitting a message requesting first access information for the first sender's wallet to the first user terminal of the first recipient based on the contact information;
Receiving a signal including the first access information from the first user terminal;
Accessing the wallet of the first sender using the first access information;
Generating a first transmission transaction for transmitting, to the first recipient wallet, the currency attributed to the first sender wallet, based on the first sender wallet address and the first recipient wallet address; And
Causing the plurality of nodes to write the first transport transaction to the main blockchain network based on a consensus algorithm by transmitting the first transport transaction to at least one node included in the main blockchain network;
Containing more,
A computer program stored on a computer readable storage medium.

The method of claim 9,
Recognizing contact information related to the second recipient stored in the memory of the executive node;
Transmitting a message requesting second access information about the second sender's wallet to the second user terminal of the second recipient based on the contact information;
Receiving a signal including the second access information from the second user terminal;
Accessing the wallet of the second sender using the second access information;
Generating a second transmission transaction for transmitting the currency attributed to the second sender wallet to the second recipient wallet based on the second sender wallet address and the second recipient wallet address; And
Causing the plurality of nodes to write the second transmission transaction to the main blockchain network based on a consensus algorithm by transmitting the second transmission transaction to at least one node included in the main blockchain network;
Containing more,
A computer program stored on a computer readable storage medium.
The method of claim 7,
Each of the at least one contract transaction not recorded in the blockchain network,
Further comprising the commission rate information set by the first caller,
The operation of selecting a first contract transaction among at least one contract transaction not recorded as a block in the blockchain network is
Selecting a contract transaction including the highest commission rate information among the at least one contract transaction as the first contract transaction;
Containing,
A computer program stored on a computer readable storage medium.
The method of claim 12,
Generating a second transfer transaction for transmitting the calculated fee based on the fee rate information included in the first contract transaction to the wallet address of the executive node before generating the first transfer transaction; And
Transmitting the second transmission transaction to at least one node included in the main blockchain network in conjunction with transmitting the first transmission transaction to at least one node included in the main blockchain network;
Containing more,
A computer program stored on a computer readable storage medium.
As a computing device included in the blockchain network,
Processor;
Memory;
A communication unit transmitting information to the outside of the computing device or receiving information from the outside;
Including,
The processor,
From the sender, the access information for the sender's wallet, the sender's sender's wallet address, the recipient's recipient's wallet address, and the currency transfer contract information including the money transfer conditions are input,
Create a contract transaction including the sender's wallet address, the recipient's wallet address, and the money transfer condition,
Controlling the communication unit to transmit the contract transaction to at least one node included in the blockchain network,
Computing device.
As a computing device included in the blockchain network,
Processor;
Memory;
A communication unit transmitting information to the outside of the computing device or receiving information from the outside;
Including,
The processor,
Select a first contract transaction among at least one contract transaction not recorded as a block in the blockchain network-the first contract transaction includes a sender's sender's wallet address, a receiver's recipient's wallet address, and first money transfer conditions -,
Recognizing whether or not the first money transfer condition included in the first contract transaction is satisfied,
When the first money transfer condition is satisfied, a block including the first contract transaction is generated through an agreement algorithm,
By transmitting the generated block to at least one node included in the blockchain network, causing a plurality of nodes included in the blockchain network to verify the validity of the block to connect the block to its blockchain,
Computing device.

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