KR102150591B1 - Techniques for trading cryptocurrency - Google Patents

Abstract

According to the embodiments of the present invention, the present invention relates to a computer program stored in a computer-readable storage medium, which comprises commands for allowing an originator node included in a blockchain network to perform the steps of: receiving, from an originator, cryptocurrency transmission contract information including access information on a wallet of the originator, an originator wallet address, a recipient wallet address, and information on the transmission amount of cryptocurrency; recognizing a first identifier associated with the type of cryptocurrency included in the originator wallet address; recognizing a second identifier associated with the type of cryptocurrency included in the recipient wallet address; determining whether to generate a contract transaction including the cryptocurrency transmission contract information based on the first and second identifiers; and deriving a plurality of nodes to write the contract transaction to a block through a consensus algorithm by transmitting the contract transaction to at least one of the nodes included in a blockchain network when the contract transaction is determined to be generated. Accordingly, incorrect deposit of the cryptocurrency is prevented.

Description

Cryptocurrency trading techniques{TECHNIQUES FOR TRADING CRYPTOCURRENCY}

The present disclosure relates to a cryptocurrency transaction technique, and more specifically, to a cryptocurrency misdeposit prevention technique.

Recently, the 4th Industrial Revolution, the next generation industrial revolution made by the convergence of information and communication technologies, has become an issue. In the existing industry, automation meant passively operating according to a program entered in advance, but in the 4th industrial revolution, it means that machines actively grasp the situation and operate. This fourth industrial revolution is led by artificial intelligence, robot technology, and life science.

Among the technologies of the 4th industrial revolution, Blockchain is attracting attention as a major technology. Blockchain is a technology that provides security as a public transaction ledger. These blockchains are attracting attention, and the Bitcoin platform and ethereum platform, which are blockchain-based cryptocurrency technologies, are also attracting attention.

Bitcoin refers to a cryptocurrency that can record transaction records by blockchain technology, and Ether of Ethereum refers to a cryptocurrency that can record additional information such as contracts as well as transaction technology. In particular, Ethereum is attracting more attention by supporting a smart contract function that can record separate information.

Such cryptocurrency can be traded between users through cryptocurrency exchanges. Specifically, a cryptocurrency exchange provides a service that enables users' wallet-to-wallet transactions (remittance and collection of cryptocurrency) provided by cryptocurrency to users. Cryptocurrencies that can be traded include, for example, Bitcoin, Ethereum, Bitcoin Cash, Litecoin, Neo, Monero, Dash and Bitcoin Gold, and there are about 80 types of cryptocurrencies.

Meanwhile, the user's wallet provided by the cryptocurrency exists separately for each cryptocurrency. Accordingly, a situation in which a user transmits a cryptocurrency to an address that does not exist during cryptocurrency transaction or to another type of cryptocurrency address may occur. In this case, it is generally possible to recover the wrongly transmitted cryptocurrency, but there may be a situation in which the cryptocurrency is lost. In addition, recovery of cryptocurrency can be costly and time consuming.

Therefore, there may be a need in the art for a method capable of preventing such misdeposit.

Korean Patent Publication No. 10-1694455

This disclosure has been devised in response to the above-described background technology, and is intended to provide a cryptocurrency transaction technique.

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

According to some embodiments of the present disclosure for solving the problems as described above, 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 steps, the steps: access information from the sender to the sender's wallet, the sender's sender's wallet address, the receiver's receiver Receiving cryptocurrency transmission contract information including information on a wallet address and a transmission amount of cryptocurrency; Recognizing a first identifier associated with a type of cryptocurrency included in the sender wallet address; Recognizing a second identifier related to the type of cryptocurrency included in the recipient wallet address; Determining whether to generate a contract transaction including the cryptocurrency transmission contract information based on the first identifier and the second identifier; And when it is determined to generate the contract transaction, sending the contract transaction to at least one node included in the blockchain network, thereby causing a plurality of nodes to record the contract transaction in a block through a consensus algorithm. It may include.

Further, the steps may include, after transmitting the contract transaction to at least one node included in the blockchain network, receiving a verification rejection signal for the contract transaction from the at least one node; And outputting a preset notification including information that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different from each other upon receiving the verification rejection signal; further The verification rejection signal may include information indicating that the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address are different.

In addition, the step of determining whether to generate a contract transaction including the cryptocurrency transmission contract information based on the first identifier and the second identifier corresponds to the sender wallet address based on the first identifier Recognizing the type of cryptocurrency to be used; And recognizing the type of cryptocurrency corresponding to the recipient wallet address, based on the second identifier.

In addition, the step of determining whether to generate a contract transaction including the cryptocurrency transmission contract information based on the first identifier and the second identifier includes the type of cryptocurrency corresponding to the sender wallet address and the recipient If the type of cryptocurrency corresponding to the wallet address matches, determining to generate the contract transaction.

In addition, the step of determining whether to generate a contract transaction including the cryptocurrency transmission contract information based on the first identifier and the second identifier includes the type of cryptocurrency corresponding to the sender wallet address and the recipient Determining not to generate the contract transaction when the type of cryptocurrency corresponding to the wallet address is different; And outputting a preset notification including information that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different.

Further, the steps may include, after recognizing each of the first identifier and the second identifier, transmitting a first signal to a recipient node corresponding to the recipient wallet address; Receiving a second signal returned in response to the first signal from the receiver node; Recognizing whether a type of cryptocurrency corresponding to the recipient wallet address and a type of cryptocurrency corresponding to the sender wallet address match based on the second signal; And determining whether to generate the contract transaction when the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address match.

In addition, the step of recognizing whether the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address match based on the second signal, the first identifier, the first identifier 2, based on the identifier and the second signal, recognizing whether the type of the cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address match.

In addition, the access information for the sender's wallet may include at least one of an exchange ID (ID), a password, a private key of the sender's wallet, and a mnemonic.

In addition, the first identifier is at least one of a prefix or a postfix added to the sender wallet address to identify the type of cryptocurrency corresponding to the sender wallet address, and the second identifier is , It may be at least one of a prefix or a postfix added to the recipient wallet address so that the type of cryptocurrency corresponding to the recipient wallet address can be identified.

In addition, the first signal is a signal for requesting information on the type of cryptocurrency corresponding to the recipient wallet address, and the second signal is information on the type of cryptocurrency corresponding to the recipient wallet address It may include.

According to some embodiments of the present disclosure for solving the problems as described above, 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 steps, the steps: access information from the sender to the sender's wallet, the sender's sender's wallet address, the receiver's receiver Receiving cryptocurrency transmission contract information including information on a wallet address and a transmission amount of cryptocurrency; Recognizing the type of cryptocurrency corresponding to the sender wallet address; Adding a first identifier to the sender wallet address based on the type of cryptocurrency corresponding to the sender wallet address; Recognizing the type of cryptocurrency corresponding to the recipient wallet address; Adding a second identifier to the recipient wallet address based on the type of cryptocurrency corresponding to the recipient wallet address; Determining whether to generate a contract transaction based on the first identifier and the second identifier; When it is determined to generate the contract transaction, generating the contract transaction including the cryptocurrency transmission contract information, the sender wallet address to which the first identifier is added, and the receiver wallet address to which the second identifier is added. ; And causing a plurality of nodes to record the contract transaction in a block through a consensus algorithm by transmitting the contract transaction to at least one node included in the blockchain network.

Further, the steps may include, after transmitting the contract transaction to at least one node included in the blockchain network, receiving a verification rejection signal for the contract transaction from the at least one node; And outputting a preset notification including information that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different from each other upon receiving the verification rejection signal; further The verification rejection signal may include information indicating that the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address are different.

Further, the step of recognizing the type of cryptocurrency corresponding to the recipient wallet address may include transmitting a first signal to a recipient node corresponding to the recipient wallet address; Receiving a second signal returned in response to the first signal from the receiver node; And recognizing the type of the cryptocurrency corresponding to the recipient wallet address based on the second signal.

In addition, the first signal is a signal for requesting information on the type of cryptocurrency corresponding to the recipient wallet address, and the second signal is information on the type of cryptocurrency corresponding to the recipient wallet address It may include.

In addition, the step of recognizing the type of cryptocurrency corresponding to the recipient wallet address may include obtaining transaction details related to the recipient wallet address recorded in the blockchain network; And recognizing the type of the cryptocurrency corresponding to the recipient wallet address, based on the transaction details.

In addition, the step of determining whether to generate a contract transaction based on the first identifier and the second identifier includes a type of cryptocurrency corresponding to the sender wallet address and a type of cryptocurrency corresponding to the recipient wallet address It may include, determining to generate the contract transaction, if they match.

In addition, the step of determining whether to generate a contract transaction based on the first identifier and the second identifier includes a type of cryptocurrency corresponding to the sender wallet address and a type of cryptocurrency corresponding to the recipient wallet address Determining not to generate the contract transaction if is different; And outputting a preset notification including information that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different.

Technical solutions obtainable in the present disclosure are not limited to the above-mentioned solutions, and other solutions that are not mentioned are clearly to those of ordinary skill in the technical field to which the present disclosure belongs from the following description. It will be understandable.

The present disclosure may provide a method of preventing misdeposit of cryptocurrency.

The effects obtainable in the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. .

Various aspects are now described with reference to the drawings, wherein like reference numbers are used collectively to refer to like elements. In the examples that follow, 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.
FIG. 1 is a diagram illustrating an example of a sender node and a receiver node included in a blockchain network in which various aspects of the present disclosure may be implemented.
2 is a flowchart illustrating an example of a method for a sender node to generate a contract transaction according to some embodiments of the present disclosure.
3 is a diagram for describing an example of a sender wallet address and a receiver wallet address according to some embodiments of the present disclosure.
4 is a flowchart illustrating an example in which a sender node receives a verification rejection signal for a contract transaction from at least one node included in a blockchain network according to some embodiments of the present disclosure.
5 is a flowchart illustrating another example of a method of generating a contract transaction by a sender node according to some embodiments of the present disclosure.
6 illustrates an example of a method in which a sender node recognizes a type of cryptocurrency corresponding to a sender wallet address and a receiver wallet address, and adds an identifier to the sender wallet address and the receiver wallet address according to some embodiments of the present disclosure This is a flow chart for
7 shows a simplified and general schematic diagram of an exemplary computing environment in which some embodiments of the present disclosure may be implemented.

Various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for illustrative purposes, a number of specific details are disclosed to aid in an overall understanding of one or more aspects. However, it will also be appreciated by those of ordinary skill in the art that this aspect(s) may be practiced without these specific details. The following description and the annexed drawings set forth in detail certain illustrative aspects of 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, as used herein, "an embodiment", "example", "aspect", "example" and the like are not construed as having any aspect or design being better or advantageous than other aspects or designs. May not.

In addition, various aspects and features will be presented by a system that may include one or more devices, terminals, servers, devices, components and/or modules, and the like. The devices, terminals, servers discussed in connection with the drawings, that various systems may include additional devices, terminals, servers, devices, components and/or modules, etc. It should also be understood and appreciated that it may not include all of devices, components, modules, etc.

As used herein, the terms "computer program", "component", "module", "system", etc. may be used interchangeably, and computer-related entities, hardware, firmware, software, combinations of software and hardware, Or it refers to the execution of software. For example, a component may be, but is not limited to, a process executed on a processor, a processor, an object, an execution thread, a program, and/or a computer. For example, both an application running on a computing device and a computing device may be components. One or more components may reside within a processor and/or thread of execution. A component can be localized on a single computer. A component can be distributed between two or more computers.

In addition, these components can execute from a variety of computer readable media having various data structures stored therein. Components can be, for example, via a signal with one or more data packets (e.g., data from one component interacting with another component in a local system, a distributed system, and/or a signal through another system and a network such as the Internet. Depending on the data being transmitted), it may communicate via local and/or remote processes.

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

The terms used in the present specification are for describing exemplary embodiments and are not intended to limit the present disclosure. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, “comprises” and/or “comprising” do not exclude the presence or addition of one or more other elements other than the mentioned elements.

Although the first, second, etc. are used to describe various devices or components, it is a matter of course that these devices or components are not limited by these terms. These terms are only used to distinguish one device or component from another device or component. Therefore, it goes without saying that the first device or component mentioned below may be a second device or component within the spirit of the present disclosure.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings that can be commonly understood by those of ordinary skill in the art to which this disclosure belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

In addition, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or”. That is, unless specified otherwise or is not clear from the context, "X employs A or B" is intended to mean one of the natural inclusive substitutions. That is, X uses A; X uses B; Or, when X uses both A and B, “X uses A or B” can be applied to either of these cases. In addition, the term "and/or" as used herein should be understood to refer to and include all possible combinations of one or more of the listed related items.

In addition, the terms “information” and “data” as used herein may often be used interchangeably with each other.

The suffixes "module" and "unit" for constituent elements used in the following description are given or used interchangeably in consideration of only the ease of preparation of the specification, and do not have a distinct meaning or role by themselves.

Objects and effects of the present disclosure, and technical configurations for achieving them will become apparent with reference to the embodiments to be described later in detail together with the accompanying drawings. In describing the present disclosure, when it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the subject matter of the present disclosure, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present disclosure and may vary according to the intention or custom of users or operators.

However, the present disclosure is not limited to the embodiments disclosed below, and may be implemented in various different forms. The present embodiments are provided only to make the present disclosure complete, and to completely inform the scope of the disclosure to those of ordinary skill in the art to which the present disclosure belongs, and 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.

The scope of rights to the method in the claims of the present disclosure is generated by the functions and features described in each step, and unless a precedence relationship of the order is specified in each step constituting the method, the claim It is not affected by the order of description of each step in the range. 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. That is, the order of each step of the present disclosure may be changed as necessary, and at least one or more steps may be omitted or added.

FIG. 1 is a diagram illustrating an example of a sender node and a receiver node included in a blockchain network in which various aspects of the present disclosure may be implemented.

Referring to FIG. 1, the blockchain network 1000 may include a sender node 100, a receiver node 200, and a plurality of nodes. However, since the above-described components are not essential to implement the blockchain network 1000, the blockchain network 1000 may have more or fewer components than the components listed above. Here, the sender node 100 may be a node that intends to transfer (deposit) cryptocurrency to the receiver node 200 through a cryptocurrency exchange.

The sender node 100 may refer to a terminal using a cryptocurrency exchange. For example, the sender node 100 is a personal computer (PC), a notebook (note book), a mobile terminal (mobile terminal), a smart phone (smart phone), a tablet PC (tablet PC), a wearable device, etc. It may include, and may include all types of terminals capable of accessing a wired/wireless network. In addition, the recipient node 200 may include any type of computer system or computer device, such as a microprocessor, mainframe computer, digital processor, portable device and device controller, and the like.

In addition, the sender node 100 may be associated with a user who wants to access at least one of the receiver node 200 and the blockchain network 1000 for remittance (deposit) of cryptocurrency through a cryptocurrency exchange.

According to some embodiments of the present disclosure, the sender node 100 may include a communication unit 110, a memory 120, and a processor 130. However, the above-described elements are not essential to implement the sender node 100, and the sender node 100 may have more or fewer elements than the above-listed elements. Here, each component may be composed of a separate chip, module or device, or may be included in a single device.

The communication unit 110 of the sender node 100 is between the sender node 100 and the receiver node 200, the sender node 100 and the blockchain network 1000 (specifically, a plurality of nodes included in the blockchain network ) May include one or more modules to enable communication between. In addition, the communication unit 110 may include one or more modules that connect the sender node 100 to one or more networks.

The memory 120 of the sender node 100 may store a program for the operation of the processor 130 and may temporarily or permanently store input/output data. The memory 120 of the sender node 100 is a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory, etc.), 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) ), a magnetic memory, a magnetic disk, or an optical disk. At least one type of storage medium may be included. The memory 120 of the sender node 100 may be operated under control of the processor 130.

The processor 130 of the sender node 100 typically controls the overall operation of the sender node 100. The processor of the sender node 100 processes signals, data, information, etc. that are input or output through the above-described components, or drives an application program stored in the memory 120 of the sender node 100 to provide appropriate information or It can provide or handle functions.

In addition, the processor 130 of the sender node 100 may control at least some of the components included in the sender node 100 in order to run an application program stored in the memory 120 of the sender node 100. have. Further, the processor 130 of the sender node 100 may operate by combining at least two or more of the components included in the sender node 100 to drive the application program.

The sender node 100 is provided with a user input unit, so that it is possible to receive information that can be used for cryptocurrency transactions in cryptocurrency transactions. In addition, since the sender node 100 has a display, it can receive a user's input in a cryptocurrency transaction and provide an arbitrary form of display output to the user. In addition, since the sender node 100 is equipped with a speaker, it is possible to provide an arbitrary type of sound output to a user in a cryptocurrency transaction.

The sender node 100 according to some embodiments of the present disclosure may issue a query or a transaction to at least one of the receiver node 200 and the blockchain network 1000. The query in the present disclosure may be used to inquire transaction details recorded on the blockchain network 1000. The transaction in the present disclosure may be used to perform an update (modification/change/delete/add) on data recorded on the blockchain network 1000.

According to some embodiments of the present disclosure, the processor 130 of the sender node 100 may receive cryptocurrency transmission contract information through a user input unit. Here, the cryptocurrency transmission contract information may include information on the access information of the sender's wallet, the sender's wallet address, the receiver's recipient wallet address, and information about the amount of cryptocurrency transmission. In addition, the access information of the sender's wallet may include at least one of an exchange ID (ID), a password, a private key of the sender's wallet, and a mnemonic.

In addition, the processor 130 may recognize a first identifier related to the type of cryptocurrency included in the sender's wallet address. In addition, the processor 130 may recognize a second identifier related to the type of cryptocurrency included in the recipient wallet address. Further, the processor 130 may determine whether to generate a contract transaction including cryptocurrency transmission contract information based on the first identifier and the second identifier.

Here, the first identifier may be at least one of a prefix or a postfix added to the sender wallet address so that the type of cryptocurrency corresponding to the sender wallet address can be identified. In addition, the second identifier may be at least one of a prefix or postfix added to the recipient wallet address so that the type of cryptocurrency corresponding to the recipient wallet address can be identified.

According to some embodiments of the present disclosure, each of the first identifier and the second identifier may be added to the wallet address when the sender wallet address and the recipient wallet address are generated. However, the present invention is not limited thereto, and each of the first identifier and the second identifier may be added to each of the sender wallet address and the receiver wallet address by the sender node 100 when a cryptocurrency transaction is executed.

A description of the above-described first and second identifiers will be described later in detail with reference to FIG. 3.

Meanwhile, when it is determined that the processor 130 of the sender node 100 generates a contract transaction, by controlling the communication unit 110 to transmit the contract transaction to at least one node included in the blockchain network 1000, a plurality of It can cause the nodes of the contract to write the contract transaction to the block through the consensus algorithm.

A detailed description of a method for the above-described sender node 100 to generate a contract transaction (or a method for deciding to generate a contract transaction) to transfer (deposit) cryptocurrency to the receiver node 200 is shown in FIGS. It will be described later in detail with reference to FIG. 6.

The receiver node 200 may mean a terminal using a cryptocurrency exchange. For example, the recipient node 200 is a personal computer (PC), a notebook (note book), a mobile terminal (mobile terminal), a smart phone (smart phone), a tablet PC (tablet pc), a wearable device, etc. It may include, and may include all types of terminals capable of accessing a wired/wireless network. In addition, the recipient node 200 may include any type of computer system or computer device, such as a microprocessor, mainframe computer, digital processor, portable device and device controller, and the like.

And, the receiver node 200 is a user who wants to access at least one of the sender node 100 and the blockchain network 1000 in order to collect the cryptocurrency that the sender node 100 sends (deposit) through the cryptocurrency exchange. Can be related to.

In some embodiments of the present disclosure, the blockchain network 1000 may refer to a plurality of nodes operating based on blockchain technology. That is, the blockchain network 1000 may include a plurality of nodes. Here, the blockchain technology is a distributed storage technology that stores data to be managed in a plurality of nodes constituting a blockchain network using a storage structure in which blocks are connected in a chain form.

The blockchain network 1000 may store transactions transmitted from the sender node 100 and/or the receiver node 200 in a block form based on a predetermined consensus algorithm. Data stored in a block form may be shared by a plurality of nodes constituting the blockchain network 1000.

In some exemplary embodiments of the present disclosure, nodes in the blockchain network 1000 may operate by a blockchain core package according to a hierarchical structure. The hierarchical structure is: a data layer that defines the structure of data handled by the blockchain network 1000 and manages the data, a fee paid to miners during the mining process, performing mining to verify the validity of blocks and generating blocks A consensus layer in charge of processing of, an execution layer that processes and executes smart contracts, a common layer that implements and manages P2P network protocols, hash functions, digital signatures, encoding and common storage, and various applications are created, processed and managed. It can include an application layer.

The blockchain network 1000 may include a plurality of nodes. In addition, at least one node included in the blockchain network 1000 may receive a transaction from the sender node 100 and/or the receiver node 200. In this case, each of a plurality of nodes included in the blockchain network 1000 may verify a transaction through a consensus algorithm and generate a block. In addition, each of the plurality of nodes may record a transaction in the generated block.

The sender node 100 and/or the receiver node 200 may operate as a node constituting the blockchain network 1000. In this example, the sender node 100 and/or the receiver node 200 may implement at least one of a wallet function, a minor function, and a full blockchain data storage function. For example, when the sender node 100 and/or the receiver node 200 includes only a wallet function, it may operate as a node that performs transaction and validation (eg, a Simplified Payment Verification (SPV) node).

The term “node” used in the present disclosure refers to a server or terminal capable of exchanging data with at least one of “sender node 100”, “recipient node 200” and “blockchain network 1000”. It can be any type of computing device. However, the present invention is not limited thereto, and the node may be any device capable of exchanging data between a plurality of nodes.

According to some embodiments of the present disclosure, a plurality of nodes included in the blockchain network 1000 may include a full block chain node and a light weight node.

A full block chain node can contain all block information from the first block of the block chain to a block that is currently newly created. In addition, the full blockchain node collects and stores all blockchain information, and can verify the received block to add a new block.

The lightweight node does not have the original of all block information, and may include only header information. In order for the lightweight node to verify the transaction, it can perform Simple Payment Verify (SPV).

For example, a lightweight node can request block information from a full blockchain node, and the authentication content of a transaction can be verified through Merkle Root.

However, for convenience of explanation, a plurality of nodes included in the block chain network 1000 may be described below assuming that they are full block chain nodes.

The term “block” used in the present disclosure is a unit stored in a block chain network, and may form a block chain by being connected to adjacent blocks. When the information of the sender node 100, the information of the receiver node 200 and the information related to the information of the blockchain network 1000 are issued as a transaction to the blockchain network, the transaction is included in the block and recorded in the blockchain network. I can. Depending on the settings of the blockchain network, the right to read, the right to consensus and/or the right to verify the data stored in the block can be determined.

A plurality of nodes included in the blockchain network 1000 may share and store generated transactions and/or smart contracts through the network. In addition, a plurality of nodes can perform a function of recording a transaction in a block when the verification of the transaction and/or smart contract is completed through the consensus algorithm of the blockchain technology.

The blockchain network 1000 may include a public blockchain network in which arbitrary nodes can perform consensus operations or a private blockchain network in which only predetermined nodes can perform consensus operations, depending on the implementation form. .

According to some embodiments of the present disclosure, the consensus algorithm performed in the blockchain network 1000 is: PoW (Proof of Work) algorithm, PoS (Proof of Stake) algorithm, DPoS (Delegated Proof of Stake) algorithm, PBFT (Practical Byzantine Fault Tolerance) algorithm, Delegated Byzantine Fault Tolerance (DBFT) algorithm, Redundant Byzantine Fault Tolerance (RBFT) algorithm, Sieve algorithm, Tendermint algorithm, Paxos algorithm, Raft algorithm, PoA (Proof of Authority) algorithm, and/or PoET (Proof of Elapsed Time) algorithm may be included.

Meanwhile, a block chain network structure according to some embodiments of the present disclosure may be of a public type or a private type. In the case of a public blockchain network, there is a disadvantage of inefficient in terms of consensus time, transaction processing speed, and efficiency of use of computing resources, as all nodes must perform verification in order to verify a transaction. Because it is possible, there may be advantages in the transparency and integrity of the stored data. In addition, in the case of a private (or consortium) block chain, since the operating entity is clear, there is an advantage of being efficient in terms of consensus time, transaction processing speed, and efficiency of use of computing resources, but transparency about the transaction processing process and results. There may be advantages in terms of

The consensus algorithm in some embodiments of the present disclosure may be a private or consortium-type blockchain network, but is not limited thereto, in order to improve the user experience through efficient use of computing resources and increase in transaction processing speed. Depending on the implementation, public type may be used as the consensus algorithm when it is desired to further emphasize the transparency of transactions or smart contracts.

Meanwhile, each of the sender node 100, the receiver node 200, and the blockchain network 1000 may mutually transmit and receive data for transaction of cryptocurrency according to some embodiments of the present disclosure through a network.

Networks according to some embodiments of the present disclosure include Public Switched Telephone Network (PSTN), x Digital Subscriber Line (xDSL), Rate Adaptive DSL (RADSL), Multi Rate DSL (MDSL), and Very High Speed (VDSL). Various wired communication systems such as DSL), Universal Asymmetric DSL (UADSL), High Bit Rate DSL (HDSL), and local area network (LAN) can be used.

In addition, the network presented here is CDMA (Code Division Multi Access), TDMA (Time Division Multi Access), FDMA (Frequency Division Multi Access), OFDMA (Orthogonal Frequency Division Multi Access), SC-FDMA (Single Carrier-FDMA) and Various wireless communication systems such as other systems can be used.

The network according to the embodiments of the present disclosure may be configured regardless of its communication mode, such as wired and wireless, and is composed of various communication networks such as a personal area network (PAN) and a wide area network (WAN). Can be. In addition, the network may be a known World Wide Web (WWW), and may use a wireless transmission technology used for short-range communication such as infrared (IrDA) or Bluetooth.

The techniques described in this disclosure may be used not only in the networks mentioned above, but also in other networks.

Various embodiments described herein may be implemented in a recording medium and a storage medium that can be read by a computer or a similar device using, for example, software, hardware, or a combination thereof.

According to hardware implementation, the embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), The present disclosure may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The embodiments described in may be implemented by the processor 130 of the sender node 100 and/or the processor of the receiver node 200 itself.

According to software implementation, embodiments such as procedures and functions described in the present disclosure may be implemented as separate software modules. Each of the software modules may perform one or more functions and operations described herein. The software code can be implemented as a software application written in an appropriate programming language. The software code is stored in the memory 120 of the sender node 100 and/or the memory of the receiver node 200, and is stored by the processor 130 of the sender node 100 and/or the processor of the receiver node 200. Can be implemented.

2 is a flowchart illustrating an example of a method for a sender node to generate a contract transaction according to some embodiments of the present disclosure.

Referring to FIG. 2, the processor 130 of the sender node 100 may receive cryptocurrency transmission contract information (S110). Specifically, the processor 130 may receive cryptocurrency transmission contract information from a sender through a user input unit. Here, the cryptocurrency transmission contract information may include information on the access information of the sender's wallet, the sender's sender's wallet address, the receiver's receiver's wallet address, and information about the amount of cryptocurrency transmission. In addition, the access information for the sender's wallet may include at least one of an exchange ID (ID), a password, a private key of the sender's wallet, and a mnemonic.

The processor 130 of the sender node 100 may recognize a first identifier associated with the type of cryptocurrency included in the sender wallet address. In addition, the processor 130 may recognize the second identifier included in the recipient wallet address (S120).

Here, the first identifier may be at least one of a prefix or a postfix added to the sender wallet address so that the type of cryptocurrency corresponding to the sender wallet address can be identified. In addition, the second identifier may be at least one of a prefix or postfix added to the recipient wallet address so that the type of cryptocurrency corresponding to the recipient wallet address can be identified.

According to some embodiments of the present disclosure, each of the first identifier and the second identifier may be added to the wallet address when the sender wallet address and the recipient wallet address are generated. However, the present invention is not limited thereto, and each of the first identifier and the second identifier may be added to each of the sender wallet address and the receiver wallet address by the sender node 100 when a cryptocurrency transaction is executed.

A description of the above-described first and second identifiers will be described later in detail with reference to FIG. 3.

Meanwhile, the processor 130 of the sender node 100 may determine whether to generate a contract transaction including cryptocurrency transmission contract information based on the first identifier and the second identifier (S130).

Specifically, the processor 130 may recognize the type of cryptocurrency corresponding to the sender wallet address based on the first identifier. Also, the processor 130 may recognize the type of cryptocurrency corresponding to the recipient wallet address based on the second identifier.

Further, the processor 130 may determine whether to generate a contract transaction including cryptocurrency transmission contract information based on the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address.

Specifically, the processor 130 of the sender node 100 may recognize whether the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address match.

And, if the processor 130 recognizes that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address match, it may determine to generate the contract transaction.

For example, if the type of cryptocurrency corresponding to the sender wallet address is bitcoin and the type of cryptocurrency corresponding to the recipient wallet address is also bitcoin, the processor 130 may recognize that the type of cryptocurrency is the same. have. In this case, the processor 130 may determine to generate a contract transaction.

That is, if it is determined to generate a contract transaction (S140, Yes), the processor 130 may generate a contract transaction including cryptocurrency transmission contract information. Further, the processor 130 may control the communication unit 110 to transmit the contract transaction to at least one node included in the blockchain network 1000 (S150).

Meanwhile, each of the plurality of nodes included in the blockchain network 1000 may check whether the sender node 100 sent the contract transaction by using the signature data included in the contract transaction. In addition, each of the plurality of nodes included in the blockchain network 1000 may record the contract transaction in a block based on a consensus algorithm when the sender node 100 recognizes that it is correct to send the contract transaction.

The contract transaction may include a transaction input value including identification information generated from the private key. In addition, the contract transaction may include a transaction output value including address information in the blockchain network 1000 in which a contract transaction including cryptocurrency transmission contract information is to be stored.

Specifically, in the contract transaction, any one node (eg, a mining node) among a plurality of nodes included in the blockchain network 1000 extracts a nonce value that satisfies a preset condition, and the nonce value is determined from each of the plurality of nodes. When it is recognized as valid, it can be recognized as being verified through a consensus algorithm. Here, the preset condition may be satisfied when the hash value of the block generated when the information stored in the header of the block and the nonce value are converted through a hash algorithm is less than the difficulty value of the block.

As described above, since the blockchain network 1000 records a transaction including cryptocurrency transmission contract information in a block using the consensus algorithm of the blockchain technology, it is possible to prevent forgery or alteration of the transaction details for cryptocurrency. have.

On the other hand, if the processor 130 of the sender node 100 recognizes that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different, it may determine not to generate a contract transaction. have.

For example, if the type of cryptocurrency corresponding to the sender wallet address is Bitcoin and the type of cryptocurrency corresponding to the recipient wallet address is Ethereum, the processor 130 may recognize that the type of cryptocurrency is different. have. In this case, the processor 130 may determine not to generate a contract transaction.

That is, when it is determined not to generate the contract transaction (S140, No), the processor 130 may not generate a contract transaction including cryptocurrency transmission contract information. In addition, the processor 130 may control the display and/or the speaker to output a preset notification (S160).

Specifically, the processor 130 may output a preset notification including information that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different. Here, the preset notification may be pre-stored in the memory 120 of the sender node 100.

For example, the processor 130 may control the display so that a message pre-stored in the memory 120 (eg, text such as'the type of cryptocurrency in the recipient wallet is different') is output. Also, the processor 130 may control the speaker to output a notification sound pre-stored in the memory 120.

Therefore, according to the above-described embodiment, it is possible to prevent incorrect deposits during cryptocurrency transactions. Specifically, the sender node 100 may block in advance an erroneous deposit that may be caused by incorrectly entering the recipient's account (here, the recipient wallet address) input by the sender. In addition, the sender node 100 may provide a notification (eg, a message or sound) related to an incorrect deposit to the sender.

3 is a diagram for describing an example of a sender wallet address and a receiver wallet address according to some embodiments of the present disclosure.

According to some embodiments of the present disclosure, the first identifier may be at least one of a prefix or a postfix added to the sender wallet address so that the type of cryptocurrency corresponding to the sender wallet address can be identified. In addition, the second identifier may be at least one of a prefix or postfix added to the recipient wallet address so that the type of cryptocurrency corresponding to the recipient wallet address can be identified.

As described above, each of the first identifier and the second identifier may be added to the wallet address when the sender wallet address and the receiver wallet address are generated. However, the present invention is not limited thereto, and each of the first identifier and the second identifier may be added to each of the sender wallet address and the receiver wallet address by the sender node 100 when a cryptocurrency transaction is executed.

A description of how the above-described sender node 100 adds the first identifier and the second identifier to each of the sender wallet address and the receiver wallet address will be described in detail later with reference to FIG. 6.

According to some embodiments of the present disclosure, the processor 130 of the sender node 100 may recognize a first identifier associated with the type of cryptocurrency included in the sender wallet address. Also, the processor 130 may recognize the second identifier included in the recipient wallet address.

Specifically, the processor 130 may recognize the type of cryptocurrency corresponding to the sender wallet address based on the first identifier. Also, the processor 130 may recognize the type of cryptocurrency corresponding to the recipient wallet address based on the second identifier. Further, the processor 130 may recognize whether the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address match.

For example, referring to 10 of FIG. 3, the processor 130 of the sender node 100 may recognize the prefix 11 and the wallet address 12 included in the sender wallet address. Further, the processor 130 may recognize the prefix 13 and the wallet address 14 included in the recipient wallet address.

Specifically, the processor 130 may recognize that the type of cryptocurrency corresponding to the sender wallet address is, for example, bitcoin, using the prefix 11 included in the sender wallet address,'bit'. In addition, the processor 130 may recognize that the type of cryptocurrency corresponding to the recipient wallet address is, for example, bitcoin, using the prefix 13 included in the recipient wallet address'bit'.

That is, the processor 130 of the sender node 100, since each type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address is'Bitcoin', the password corresponding to the sender wallet address It can be recognized that the type of currency and the type of cryptocurrency corresponding to the recipient wallet address match.

As another example, referring to 20 of FIG. 3, the processor 130 of the sender node 100 may recognize the prefix 21 and the wallet address 22 included in the sender wallet address. Further, the processor 130 may recognize the prefix 23 and the wallet address 24 included in the recipient wallet address.

Specifically, the processor 130 may recognize that the type of cryptocurrency corresponding to the sender wallet address is, for example, bitcoin by using the prefix 21 included in the sender wallet address,'bit'. In addition, the processor 130 may recognize that the type of cryptocurrency corresponding to the recipient wallet address is, for example, Ethereum by using the prefix 23 included in the recipient wallet address,'eth'.

That is, the processor 130 of the sender node 100, since the type of cryptocurrency corresponding to the sender wallet address is'Bitcoin' and the type of cryptocurrency corresponding to the recipient wallet address is'Ethereum', the sender wallet It can be recognized that the type of cryptocurrency corresponding to the address and the type of cryptocurrency corresponding to the recipient wallet address are different.

As another example, referring to 30 of FIG. 3, the processor 130 of the sender node 100 may recognize the wallet address 31 and the postfix 32 included in the sender wallet address. In addition, the processor 130 may recognize the wallet address 33 and the postfix 34 included in the recipient wallet address.

Specifically, the processor 130 may recognize that the type of cryptocurrency corresponding to the sender wallet address is, for example, bitcoin, by using'bit', which is the postfix 32 included in the sender wallet address. In addition, the processor 130 may recognize that the type of cryptocurrency corresponding to the recipient wallet address is, for example, bitcoin by using'bit', which is the postfix 34 included in the recipient wallet address.

That is, the processor 130 of the sender node 100, since each type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address is'Bitcoin', the password corresponding to the sender wallet address It can be recognized that the type of currency and the type of cryptocurrency corresponding to the recipient wallet address match.

As another example, referring to 40 of FIG. 3, the processor 130 of the sender node 100 may recognize the wallet address 41 and the postfix 42 included in the sender wallet address. Further, the processor 130 may recognize the wallet address 43 and the postfix 44 included in the recipient wallet address.

Specifically, the processor 130 may recognize that the type of cryptocurrency corresponding to the sender's wallet address is, for example, bitcoin by using'bit', which is the postfix 42 included in the sender's wallet address. In addition, the processor 130 may recognize that the type of cryptocurrency corresponding to the recipient wallet address is, for example, Ethereum, using the postfix 44 included in the recipient wallet address'eth'.

That is, the processor 130 of the sender node 100, since the type of cryptocurrency corresponding to the sender wallet address is'Bitcoin' and the type of cryptocurrency corresponding to the recipient wallet address is'Ethereum', the sender wallet It can be recognized that the type of cryptocurrency corresponding to the address and the type of cryptocurrency corresponding to the recipient wallet address are different.

According to some embodiments of the present disclosure, the processor 130 of the sender node 100 performs a contract transaction according to whether the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address match. You can decide whether to create or not.

For example, if the type of cryptocurrency corresponding to the sender wallet address is bitcoin and the type of cryptocurrency corresponding to the recipient wallet address is also bitcoin, the processor 130 may recognize that the type of cryptocurrency is the same. . In this case, the processor 130 may determine to generate a contract transaction.

As another example, if the type of cryptocurrency corresponding to the sender wallet address is bitcoin and the type of cryptocurrency corresponding to the recipient wallet address is also Ethereum, the processor 130 may recognize that the type of cryptocurrency is different. have. In this case, the processor 130 may determine not to generate a contract transaction.

Accordingly, the processor 130 of the sender node 100 may prevent misdeposit of cryptocurrency by using a prefix or postfix included in each of the sender wallet address and the receiver wallet address.

Specifically, the processor 130 recognizes the type of cryptocurrency corresponding to each of the sender's wallet address and the recipient's wallet address by using Peacefix or Postfix, and only when the type of cryptocurrency coincides, the contract transaction related to the transaction By creating a, it is possible to prevent misdeposit of cryptocurrency.

The sender wallet address and the receiver wallet address, as well as the prefix and postfix shown in the description of FIG. 3 and described above are only some embodiments for aiding understanding of the present disclosure, and the present disclosure is not limited thereto.

4 is a flowchart illustrating an example in which a sender node receives a verification rejection signal for a contract transaction from at least one node included in a blockchain network according to some embodiments of the present disclosure.

First, as described above in the description of FIG. 2, the processor 130 of the sender node 100 may receive cryptocurrency transmission contract information. In addition, the processor 130 may recognize a first identifier related to the type of cryptocurrency included in the sender's wallet address. In addition, the processor 130 may recognize a second identifier related to the type of cryptocurrency included in the recipient wallet address. Further, the processor 130 may determine whether to generate a contract transaction including cryptocurrency transmission contract information based on the first identifier and the second identifier.

On the other hand, when it is determined to generate a contract transaction, the processor 130 may generate a contract transaction. In addition, the processor 130 may control the communication unit 110 to transmit a contract transaction to at least one node included in the blockchain network 1000.

Referring to FIG. 4, after the sender node 100 transmits a contract transaction to at least one node included in the blockchain network 1000, the processor 130 of the sender node 100 transmits the contract transaction through the communication unit 110. A verification rejection signal for a contract transaction may be received from at least one node included in the blockchain network 1000 (S210). Here, the verification rejection signal may include information indicating that the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address are different.

That is, at least one node included in the blockchain network 1000 uses the sender wallet address and the recipient wallet address included in the contract transaction, and the type of cryptocurrency corresponding to the recipient wallet address and the password corresponding to the sender wallet address. It is possible to recognize whether the types of money coincide.

For example, at least one node may recognize the type of cryptocurrency corresponding to the sender wallet address by using the first identifier included in the sender wallet address. In addition, at least one node may recognize the type of cryptocurrency corresponding to the recipient wallet address by using the second identifier included in the recipient wallet address.

As another example, at least one node may query the transaction details of the sender node 100 recorded in the blockchain network 1000 by using the sender wallet address. In addition, at least one node may recognize the type of cryptocurrency corresponding to the sender's wallet address based on the transaction details. In addition, at least one node may query the transaction details of the recipient node 200 by using the recipient wallet address. In addition, at least one node may recognize the type of cryptocurrency corresponding to the recipient wallet address based on the transaction details.

On the other hand, at least one node included in the blockchain network 1000 is received from the sender node 100 when the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address match. You can perform verification of contract transactions.

On the other hand, when at least one node included in the blockchain network 1000 does not match the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address, the sender node 100 You can reject the verification of the received contract transaction. In this case, as described above, at least one node may transmit a verification rejection signal to the sender node 100.

As the processor 130 of the sender node 100 receives the verification rejection signal from at least one node included in the blockchain network 1000 through the communication unit 110, the type of cryptocurrency corresponding to the sender wallet address and A preset notification including information that the type of cryptocurrency corresponding to the recipient wallet address is different may be output (S220). Here, the preset notification may be pre-stored in the memory 120 of the sender node 100.

For example, the processor 130 may control the display so that a message pre-stored in the memory 120 (eg, text such as'the type of cryptocurrency in the recipient wallet is different') is output. Also, the processor 130 may control the speaker to output a notification sound pre-stored in the memory 120.

Therefore, according to the above-described embodiment, it is possible to prevent incorrect deposits during cryptocurrency transactions. Specifically, at least one node included in the blockchain network 1000 may pre-block an incorrect deposit that may be generated by incorrectly entering the recipient's account (here, the recipient wallet address) input by the sender. In addition, at least one node may cause the sender node 100 to provide a notification (eg, a message or sound) related to an incorrect deposit to the sender by transmitting a verification rejection signal to the sender node 100.

5 is a flowchart illustrating another example of a method of generating a contract transaction by a sender node according to some embodiments of the present disclosure.

First, as described above in the description of FIG. 2, the processor 130 of the sender node 100 may receive cryptocurrency transmission contract information. In addition, the processor 130 may recognize a first identifier related to the type of cryptocurrency included in the sender's wallet address. In addition, the processor 130 may recognize a second identifier related to the type of cryptocurrency included in the recipient wallet address.

Referring to FIG. 5, after the sender node 100 recognizes each of the first identifier and the second identifier, the processor 130 of the sender node 100 sends the first to the receiver node 200 corresponding to the receiver wallet address. The communication unit 110 may be controlled to transmit a signal (S310).

Further, the processor 130 may receive a second signal returned in response to the first signal through the communication unit 110 from the receiver node 200 (S320).

Here, the first signal may be a signal for requesting information on the type of cryptocurrency corresponding to the recipient wallet address. In addition, the second signal may include information on the type of cryptocurrency corresponding to the recipient wallet address. However, the present invention is not limited thereto, and the first signal may be a signal to transmit a cryptocurrency corresponding to the sender's wallet address. In addition, the second signal may be a signal indicating that a cryptocurrency corresponding to the sender wallet address can be received.

That is, each of the first signal and the second signal may be a signal transmitted and received in order to check the type of cryptocurrency corresponding to the wallet address of the sender node 100 and the receiver node 200.

Meanwhile, the processor 130 of the sender node 100 may recognize whether the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address match based on the second signal. (S330).

Specifically, the processor 130 may recognize the type of cryptocurrency corresponding to the recipient wallet address by using information on the type of cryptocurrency corresponding to the recipient wallet address included in the second signal. In addition, the processor 130 may recognize whether the type of the cryptocurrency matches the type of cryptocurrency by comparing the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address. Here, the type of cryptocurrency corresponding to the sender wallet address may be previously recognized by the sender node 100 through the first identifier included in the sender wallet address.

Additionally, the processor 130 of the sender node 100 determines the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address based on the first identifier, the second identifier and the second signal. You can recognize whether they match.

Specifically, the processor 130 may recognize the type of cryptocurrency corresponding to the recipient wallet address by using information on the type of cryptocurrency corresponding to the recipient wallet address included in the second signal. In addition, the processor 130 may recognize the type of cryptocurrency corresponding to the recipient wallet address through the second identifier included in the recipient wallet address. In addition, the processor 130 may recognize whether the type of the cryptocurrency matches the type of cryptocurrency by comparing the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address. Here, the type of cryptocurrency corresponding to the sender wallet address may be previously recognized by the sender node 100 through the first identifier included in the sender wallet address.

In this case, the processor 130 of the sender node 100 may more accurately recognize whether the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address match.

On the other hand, if the processor 130 of the sender node 100 recognizes that the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address match (S340, Yes), it creates a contract transaction. Whether to do it can be determined (S350).

On the other hand, if the processor 130 of the sender node 100 recognizes that the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address do not match (S340, No), a preset A notification may be output (S360).

Specifically, the processor 130 may output a preset notification including information that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different. Here, the preset notification may be pre-stored in the memory 120 of the sender node 100.

For example, the processor 130 may control the display so that a message pre-stored in the memory 120 (eg, text such as'the type of cryptocurrency in the recipient wallet is different') is output. Also, the processor 130 may control the speaker to output a notification sound pre-stored in the memory 120.

Therefore, according to the above-described embodiment, it is possible to prevent incorrect deposits during cryptocurrency transactions. Specifically, the sender node 100 may block in advance an erroneous deposit that may be caused by incorrectly entering the recipient's account (here, the recipient wallet address) input by the sender. In addition, the sender node 100 may provide a notification (eg, a message or sound) related to an incorrect deposit to the sender.

6 illustrates an example of a method in which a sender node recognizes a type of cryptocurrency corresponding to a sender wallet address and a receiver wallet address, and adds an identifier to the sender wallet address and the receiver wallet address according to some embodiments of the present disclosure This is a flow chart for

Referring to FIG. 6, the processor 130 of the sender node 100 may receive cryptocurrency transmission contract information (S410). Specifically, the processor 130 may receive cryptocurrency transmission contract information from a sender through a user input unit. Here, the cryptocurrency transmission contract information may include information on the access information of the sender's wallet, the sender's sender's wallet address, the receiver's receiver's wallet address, and information about the amount of cryptocurrency transmission. In addition, the access information for the sender's wallet may include at least one of an exchange ID (ID), a password, a private key of the sender's wallet, and a mnemonic.

Meanwhile, the processor 130 of the sender node 100 may recognize the type of cryptocurrency corresponding to the sender wallet address.

Specifically, the processor 130 may obtain transaction details related to the sender wallet address recorded in the blockchain network 1000. Further, the processor 130 may recognize the type of cryptocurrency corresponding to the sender wallet address based on the transaction details. However, the present invention is not limited thereto, and the type of cryptocurrency corresponding to the sender wallet address may be pre-stored in the memory 120 of the sender node 100 together with the sender wallet address. That is, the processor 130 may acquire the type of cryptocurrency corresponding to the sender wallet address pre-stored in the memory 120.

Further, the processor 130 may add the first identifier to the sender wallet address based on the type of cryptocurrency corresponding to the sender wallet address (S420). Here, the first identifier may be at least one of a prefix or a postfix added to the sender wallet address so that the type of cryptocurrency corresponding to the sender wallet address can be identified.

On the other hand, the processor 130 of the sender node 100 may recognize the type of cryptocurrency corresponding to the recipient wallet address.

For example, the processor 130 may control the communication unit 110 to transmit the first signal to the recipient node 200 corresponding to the recipient wallet address. Further, the processor 130 may receive a second signal returned in response to the first signal through the communication unit 110 from the receiver node 200. In this case, the processor 130 may recognize the type of the cryptocurrency corresponding to the recipient wallet address based on the second signal.

Here, the first signal may be a signal for requesting information on the type of cryptocurrency corresponding to the recipient wallet address. In addition, the second signal may include information on the type of the cryptocurrency corresponding to the recipient wallet address.

That is, the processor 130 may recognize the type of cryptocurrency corresponding to the recipient wallet address by using information on the type of cryptocurrency corresponding to the recipient wallet address included in the second signal.

As another example, the processor 130 may obtain transaction details related to the recipient wallet address recorded in the blockchain network 1000. Further, the processor 130 may recognize the type of cryptocurrency corresponding to the recipient wallet address based on the transaction details.

Further, the processor 130 may add a second identifier to the recipient wallet address based on the type of cryptocurrency corresponding to the recipient wallet address (S430). Here, the second identifier may be at least one of a prefix or post-fix added to the recipient wallet address so that the type of cryptocurrency corresponding to the recipient wallet address can be identified.

The processor 130 may determine whether to generate a contract transaction including cryptocurrency transmission contract information based on the first identifier and the second identifier (S440).

Specifically, the processor 130 may compare the type of cryptocurrency corresponding to the first identifier and the type of cryptocurrency corresponding to the second identifier. In addition, when the type of the cryptocurrency corresponding to the first identifier and the type of cryptocurrency corresponding to the second identifier match, the processor 130 may determine to generate a contract transaction including cryptocurrency transmission contract information. (S450, Yes).

In this case, the processor 130 may generate a contract transaction including cryptocurrency transmission contract information, a sender wallet address to which the first identifier is added, and a receiver wallet address to which the second identifier is added (S460). Further, the processor 130 may control the communication unit 110 to transmit the contract transaction to at least one node included in the blockchain network 1000 (S470).

Meanwhile, each of the plurality of nodes included in the blockchain network 1000 may check whether the sender node 100 sent the contract transaction by using the signature data included in the contract transaction. In addition, each of the plurality of nodes included in the blockchain network 1000 may record the contract transaction in a block based on a consensus algorithm when the sender node 100 recognizes that it is correct to send the contract transaction.

The contract transaction may include a transaction input value including identification information generated from the private key. In addition, the contract transaction may include a transaction output value including address information in the blockchain network 1000 in which a contract transaction including cryptocurrency transmission contract information is to be stored.

Specifically, in the contract transaction, any one node (eg, a mining node) among a plurality of nodes included in the blockchain network 1000 extracts a nonce value that satisfies a preset condition, and the nonce value is determined from each of the plurality of nodes. When it is recognized as valid, it can be recognized as being verified through a consensus algorithm. Here, the preset condition may be satisfied when the hash value of the block generated when the information stored in the header of the block and the nonce value are converted through a hash algorithm is less than the difficulty value of the block.

As described above, since the blockchain network 1000 records a transaction including cryptocurrency transmission contract information in a block using the consensus algorithm of the blockchain technology, it is possible to prevent forgery or alteration of the transaction details for cryptocurrency. have.

On the other hand, if the type of the cryptocurrency corresponding to the first identifier and the type of cryptocurrency corresponding to the second identifier do not match, the processor 130 determines not to generate a contract transaction including cryptocurrency transmission contract information. Can (S450, No).

In this case, the processor 130 may output a preset notification (S480).

Specifically, the processor 130 may output a preset notification including information that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different. Here, the preset notification may be pre-stored in the memory 120 of the sender node 100.

For example, the processor 130 may control the display so that a message pre-stored in the memory 120 (eg, text such as'the type of cryptocurrency in the recipient wallet is different') is output. Also, the processor 130 may control the speaker to output a notification sound pre-stored in the memory 120.

Therefore, according to the above-described embodiment, it is possible to prevent incorrect deposits during cryptocurrency transactions. Specifically, the sender node 100 may block in advance an erroneous deposit that may be caused by incorrectly entering the recipient's account (here, the recipient wallet address) input by the sender. In addition, the sender node 100 may provide a notification (eg, a message or sound) related to an incorrect deposit to the sender.

7 shows a simplified and general schematic diagram of an exemplary computing environment in which embodiments of the present disclosure may be implemented.

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

In general, modules herein include routines, procedures, programs, components, data structures, etc. that perform particular tasks or implement particular abstract data types. In addition, to those skilled in the art, the method of the present disclosure is not limited to single-processor or multiprocessor computer systems, minicomputers, mainframe computers, as well as personal computers, handheld computing devices, microprocessor-based or programmable household appliances, and the like (each of which is It will be appreciated that it may be implemented with other computer system configurations, including one or more associated devices).

The described embodiments of the present disclosure may also be practiced in a distributed computing environment where certain tasks are performed by remote processing devices that are connected through a communication 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-readable media can be any computer-readable media, including volatile and non-volatile media, transitory and non-transitory media, removable and non-transitory media. Includes 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 include volatile and nonvolatile 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 the medium. Computer-readable storage media include RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital video disk (DVD) or other optical disk storage, magnetic cassette, magnetic tape, magnetic disk storage, or other magnetic storage. Devices, or any other medium that can be accessed by a computer and used to store desired information.

Computer-readable transmission media typically implement computer-readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism. Includes all information delivery media. The term modulated data signal refers to a signal in which one or more of the characteristics of the signal is set or changed to encode information in the signal. By way of example, and not limitation, computer-readable transmission media include 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 1500 is shown that implements various aspects of the present disclosure including a computer 1502, which includes a processing device 1504, a system memory 1506, and a system bus 1508. do. System bus 1508 couples system components, including, but not limited to, system memory 1506 to processing unit 1504. The processing unit 1504 may be any of a variety of commercially available processors. Dual processors and other multiprocessor architectures may also be used as processing unit 1504.

The system bus 1508 may be any of several types of bus structures that can be additionally interconnected to a memory bus, a peripheral bus, and a local bus using any of a variety of commercial bus architectures. System memory 1506 includes read-only memory (ROM) 1510 and random access memory (RAM) 1512. The basic input/output system (BIOS) is stored in nonvolatile memory 1510 such as ROM, EPROM, EEPROM, etc. This BIOS is a basic input/output system that helps transfer information between components in the computer 1502, such as during startup. Includes routines. RAM 1512 may also include high-speed RAM, such as static RAM, for caching data.

Computer 1502 also includes an internal hard disk drive (HDD) 1514 (e.g., EIDE, SATA)—this internal hard disk drive 1514 can also be configured for external use within a suitable chassis (not shown). Yes--, magnetic floppy disk drive (FDD) 1516 (for example, to read from or write to removable diskette 1518), and optical disk drive 1520 (e.g., CD-ROM The disc 1522 is for reading or reading from or writing to other high-capacity optical media such as DVD). The hard disk drive 1514, the magnetic disk drive 1516, and the optical disk drive 1520 are each connected to the system bus 1508 by a hard disk drive interface 1524, a magnetic disk drive interface 1526, and an optical drive interface 1528. ) Can be connected. The interface 1524 for implementing an external drive includes, for example, at least one or both of USB (Universal Serial Bus) and IEEE 1394 interface technologies.

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 1502, drives and media correspond to storing any data in a suitable digital format. Although the description of the computer-readable storage medium above refers to a removable optical medium such as a HDD, a removable magnetic disk, and a CD or DVD, those skilled in the art may include a zip drive, a magnetic cassette, a flash memory card, a cartridge, It will be appreciated that other types of computer-readable storage media, such as etc., may also be used in the exemplary operating environment and that any such media may contain computer-executable instructions for performing the methods of the present disclosure. .

A number of program modules may be stored in the drive and RAM 1512, including an operating system 1530, one or more application programs 1532, other program modules 1534, and program data 1536. All or part of the operating system, applications, modules, and/or data may also be cached in RAM 1512. It will be appreciated that the present disclosure may be implemented on a number of commercially available operating systems or combinations of operating systems.

A user may input commands and information into the computer 1502 through one or more wired/wireless input devices, for example, pointing devices such as a keyboard 1538 and a mouse 1540. Other input devices (not shown) may include a microphone, IR remote control, joystick, game pad, stylus pen, touch screen, and the like. These and other input devices are often connected to the processing unit 1504 through an input device interface 1542 that is connected to the system bus 1508, but the parallel port, IEEE 1394 serial port, game port, USB port, IR interface, It can be connected by other interfaces such as etc.

A monitor 1544 or other type of display device is also connected to the system bus 1508 via an interface such as a video adapter 1546. In addition to the monitor 1544, the computer generally includes other peripheral output devices (not shown) such as speakers, printers, etc.

Computer 1502 may operate in a networked environment using logical connections to one or more remote computers, such as remote computer(s) 1548, via wired and/or wireless communication. The remote computer(s) 1548 may be a workstation, server computer, router, personal computer, portable computer, microprocessor-based entertainment device, peer device, or other common network node, and is generally referred to as computer 1502. Although including many or all of the described components, for simplicity, only memory storage device 1550 is shown. The logical connections shown include wired/wireless connections to a local area network (LAN) 1552 and/or a larger network, for example, a wide area network (WAN) 1554. Such LAN and WAN networking environments are common in offices and companies, and facilitate an enterprise-wide computer network such as an intranet, all of which can be connected to a worldwide computer network, for example the Internet.

When used in a LAN networking environment, the computer 1502 is connected to the local network 1552 via a wired and/or wireless communication network interface or adapter 1556. Adapter 1556 may facilitate wired or wireless communication to LAN 1552, which LAN 1552 also includes a wireless access point installed therein to communicate with wireless adapter 1556. When used in a WAN networking environment, the computer 1502 may include a modem 1558, connected to a communication server on the WAN 1554, or any other that establishes communication through the WAN 1554 Have means. Modem 1558, which may be an internal or external and wired or wireless device, is connected to the system bus 1508 through a serial port interface 1542. In a networked environment, program modules described for the computer 1502 or portions thereof may be stored in the remote memory/storage device 1550. It will be appreciated that the network connections shown are exemplary and other means of establishing communication links between computers may be used.

Computer 1502 is associated with any wireless device or entity deployed and operated in wireless communication, e.g., a printer, scanner, desktop and/or portable computer, portable data assistant (PDA), communications satellite, wireless detectable tag. It operates to communicate with any device or place and phone. This includes at least Wi-Fi and Bluetooth wireless technologies. Thus, the communication may be a predefined structure as in a conventional network or may simply be ad hoc communication between at least two devices.

Wi-Fi (Wireless Fidelity) allows you to connect to the Internet, etc. without wires. Wi-Fi is a wireless technology, such as a cell phone, that allows such devices, for example computers, to transmit and receive data indoors and outdoors, ie anywhere within the coverage area of a base station. 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.

A person of ordinary skill in the art of the present disclosure includes various illustrative logical blocks, modules, processors, means, circuits and algorithm steps described in connection with the embodiments disclosed herein, electronic hardware, (convenience). For the sake of clarity, it will be appreciated that it may be implemented by various forms of program or design code or a combination of both (referred to herein as "software"). 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. A person of ordinary skill in the art of the present disclosure may implement the described functions in various ways for each specific application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The various embodiments presented herein may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term “article of manufacture” includes a computer program or media accessible from any computer-readable device. For example, computer-readable storage media include magnetic storage devices (e.g., hard disks, floppy disks, magnetic strips, etc.), optical disks (e.g., CD, DVD, etc.), smart cards, and flash Memory devices (eg, EEPROMs, cards, sticks, key drives, etc.), but are not limited thereto. The term “machine-readable medium” includes, but is not limited to, wireless channels and various other media capable of storing, holding, and/or transmitting instruction(s) and/or data.

It is to be understood that the specific order or hierarchy of steps in the presented processes is an example of exemplary approaches. Based on the design priorities, it is to be understood that within the scope of the present disclosure a specific order or hierarchy of steps in processes may be rearranged. The appended 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.

The description of the presented embodiments is 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 of ordinary skill in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the present disclosure. Thus, the present disclosure is not to be limited to the embodiments presented herein but is to be interpreted in the widest scope consistent with the principles and novel features presented herein.

Claims (17)

A computer program stored on a computer-readable storage medium, comprising:
The computer program includes instructions for causing a sender node included in the blockchain network to perform the following steps, the steps:
Receiving cryptocurrency transmission contract information including information on access information for the sender's wallet, the sender's wallet address, the receiver's recipient wallet address, and information on the amount of cryptocurrency transmitted from the sender;
Recognizing a first identifier added to the sender wallet address to identify a type of cryptocurrency corresponding to the sender wallet address;
Recognizing a second identifier added to the recipient wallet address to identify a type of cryptocurrency corresponding to the recipient wallet address;
Determining whether to generate a contract transaction including the cryptocurrency transmission contract information based on the first identifier and the second identifier; And
When it is determined to generate the contract transaction, sending the contract transaction to at least one node included in the blockchain network, thereby causing a plurality of nodes to record the contract transaction in a block through a consensus algorithm;
Containing,
A computer program stored on a computer-readable storage medium.

The method of claim 1,
After transmitting the contract transaction to at least one node included in the blockchain network, receiving a verification rejection signal for the contract transaction from the at least one node; And
Upon receiving the verification rejection signal, outputting a preset notification including information that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different;
Including more,
The verification rejection signal,
Containing information that the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address are different,
A computer program stored on a computer-readable storage medium.
The method of claim 1,
Based on the first identifier and the second identifier, determining whether to generate a contract transaction including the cryptocurrency transmission contract information,
Recognizing the type of cryptocurrency corresponding to the sender wallet address based on the first identifier; And
Recognizing a type of cryptocurrency corresponding to the recipient wallet address based on the second identifier;
Containing,
A computer program stored on a computer-readable storage medium.
The method of claim 3,
Based on the first identifier and the second identifier, determining whether to generate a contract transaction including the cryptocurrency transmission contract information,
Determining to generate the contract transaction when the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address match;
Containing,
A computer program stored on a computer-readable storage medium.
The method of claim 3,
Based on the first identifier and the second identifier, determining whether to generate a contract transaction including the cryptocurrency transmission contract information,
Determining not to generate the contract transaction when the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different; And
Outputting a preset notification including information that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different;
Containing,
A computer program stored on a computer-readable storage medium.
The method of claim 1,
After recognizing each of the first identifier and the second identifier, transmitting a first signal to a recipient node corresponding to the recipient wallet address;
Receiving a second signal returned in response to the first signal from the receiver node;
Recognizing whether a type of cryptocurrency corresponding to the recipient wallet address and a type of cryptocurrency corresponding to the sender wallet address match based on the second signal; And
Determining whether to generate the contract transaction when the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address match;
Further comprising,
A computer program stored on a computer-readable storage medium.
The method of claim 6,
Recognizing whether the type of the cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address match based on the second signal,
Recognizing whether the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address match based on the first identifier, the second identifier, and the second signal;
Containing,
A computer program stored on a computer-readable storage medium.
The method of claim 1,
The access information for the sender's wallet,
Including at least one of an exchange ID (ID), a password, a private key of the sender's wallet, and a mnemonic,
A computer program stored on a computer-readable storage medium.
The method of claim 1,
The first identifier,
It is at least one of a prefix or a postfix,
The second identifier,
At least one of a prefix or a postfix,
A computer program stored on a computer-readable storage medium.
The method of claim 6,
The first signal,
A signal for requesting information on the type of cryptocurrency corresponding to the recipient wallet address,
The second signal,
Including information on the type of the cryptocurrency corresponding to the recipient wallet address,
A computer program stored on a computer-readable storage medium.
A computer program stored on a computer-readable storage medium, comprising:
The computer program includes instructions for causing a sender node included in the blockchain network to perform the following steps, the steps:
Receiving cryptocurrency transmission contract information including information on access information for the sender's wallet, the sender's wallet address, the receiver's recipient wallet address, and information on the amount of cryptocurrency transmitted from the sender;
Recognizing the type of cryptocurrency corresponding to the sender wallet address;
Adding a first identifier to the sender wallet address so as to identify a type of cryptocurrency corresponding to the sender wallet address;
Recognizing the type of cryptocurrency corresponding to the recipient wallet address;
Adding a second identifier to the recipient wallet address so that the type of cryptocurrency corresponding to the recipient wallet address can be identified;
Determining whether to generate a contract transaction based on the first identifier and the second identifier;
When it is determined to generate the contract transaction, generating the contract transaction including the cryptocurrency transmission contract information, the sender wallet address to which the first identifier is added, and the receiver wallet address to which the second identifier is added. ; And
Sending the contract transaction to at least one node included in the blockchain network, causing a plurality of nodes to record the contract transaction in a block through a consensus algorithm;
Containing,
A computer program stored on a computer-readable storage medium.
The method of claim 11,
After transmitting the contract transaction to at least one node included in the blockchain network, receiving a verification rejection signal for the contract transaction from the at least one node; And
Upon receiving the verification rejection signal, outputting a preset notification including information that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different;
Including more,
The verification rejection signal,
Containing information that the type of cryptocurrency corresponding to the recipient wallet address and the type of cryptocurrency corresponding to the sender wallet address are different,
A computer program stored on a computer-readable storage medium.
The method of claim 11,
Recognizing the type of cryptocurrency corresponding to the recipient wallet address,
Transmitting a first signal to a recipient node corresponding to the recipient wallet address;
Receiving a second signal returned in response to the first signal from the receiver node; And
Recognizing the type of the cryptocurrency corresponding to the recipient wallet address based on the second signal;
Containing,
A computer program stored on a computer-readable storage medium.
The method of claim 13,
The first signal,
A signal for requesting information on the type of cryptocurrency corresponding to the recipient wallet address,
The second signal,
Including information on the type of the cryptocurrency corresponding to the recipient wallet address,
A computer program stored on a computer-readable storage medium.
The method of claim 11,
Recognizing the type of cryptocurrency corresponding to the recipient wallet address,
Obtaining transaction details related to the recipient wallet address recorded in the blockchain network; And
Recognizing the type of the cryptocurrency corresponding to the recipient wallet address based on the transaction details;
Containing,
A computer program stored on a computer-readable storage medium.
The method of claim 11,
Based on the first identifier and the second identifier, determining whether to generate a contract transaction,
Determining to generate the contract transaction when the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address match;
Containing,
A computer program stored on a computer-readable storage medium.
The method of claim 11,
Based on the first identifier and the second identifier, determining whether to generate a contract transaction,
Determining not to generate the contract transaction when the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different; And
Outputting a preset notification including information that the type of cryptocurrency corresponding to the sender wallet address and the type of cryptocurrency corresponding to the recipient wallet address are different;
Containing,
A computer program stored on a computer-readable storage medium.

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