KR102227442B1 - Method for the settlement of personal information - Google Patents

Abstract

The present invention relates to a method of settling the price of selling personal information, and more specifically, to a method of selling personal information and settling the price based on a block chain. In the method of calculating the sales price of the self-information using the blockchain network of the present invention, the step of receiving a request for registration of a sales policy of the user's information by a business node from a user terminal, and responding to the sales policy in response to a request for registration of sales policy The step of distributing the first transaction, the step of creating a first smart contract corresponding to the first transaction by the operator node, the step of distributing a second transaction corresponding to the sale of personal information by the operator node, and the user by the purchaser node In response to the step of distributing a third transaction corresponding to the purchase of information and the implementation of the first smart contract according to the distribution of the second and third transactions, the sales price of the personal information is settled by the operator node to the user terminal and the purchaser node. It may include the step of.

Description

Method for the settlement of personal information

The present invention relates to a method of settling the price of selling personal information, and more specifically, to a method of selling personal information and settling the price based on a block chain.

In the modern society, personal data or mydata is fragmented and used by countries and companies such as hospitals, banks, telecommunications companies, power agencies, and SNS. Specifically, the government and companies use their own information for big data analysis and marketing.

On the other hand, despite the fact that the personal information is information about the individual party, there is no self-determination right to use the personal information by himself. Ironically, it is difficult to actively share personal information between governments and companies in that it is in the area of personal information protection, even though it is being used by the government and companies, not by individual parties. In other words, even though the country and companies keep fragmented personal information, the personal information is not sufficiently shared and utilized when necessary.

In addition, personal information stored and managed in an existing centralized system may pose a risk of hacker attack or unintended leakage.

Accordingly, the necessity of strengthening security compared to a centralized system while individual parties take the initiative in controlling their own information is increasing.

In this way, in order to utilize self-directed control and strengthen security, a block chain characterized by reliability and decentralization can be applied to the use of self-information. In particular, it is possible to implement data transactions through smart contracts among blockchain networks.

Blockchain is a chain of blocks on which information is recorded, and refers to a data distribution processing technology that distributes and stores the block chain, which is the subject of management by all subjects participating in the network.

Korean Patent Registration No. 10-1784197 (2017.09.27) consists of making donations directly to beneficiaries using assets including digital virtual currency due to the encryption technology of the blockchain. Donations can be made to beneficiaries so that their donations are transparently used wherever they want.

The present invention is in accordance with the above-described necessity, and an object of the present invention is to provide a method of utilizing personal information with enhanced security while an individual party has the right to control his or her own information.

In addition, an object of the present invention is to provide a transparent and automated information transaction method in utilizing personal information.

However, these problems are exemplary, and the scope of the present invention is not limited thereby.

In accordance with an embodiment of the present invention, a method for calculating a sales price for personal information using a block chain network includes the steps of, by a business node, receiving a request for registration of a sales policy for the user information from a user terminal; Distributing, by the operator node, a first transaction corresponding to the sales policy in response to the sales policy registration request; Generating, by the operator node, a first smart contract corresponding to the first transaction; Distributing a second transaction corresponding to the self-information sale by the operator node, and distributing a third transaction corresponding to the self-information purchase by the purchaser node; And in response to the execution of the first smart contract according to the distribution of the second transaction and the third transaction, calculating the sales price of the personal information to the user terminal and the purchaser node by the operator node. It may include.

In addition, the sales policy may include at least one of a sales period, a sales amount, and a sales range.

In addition, the first smart contract may be implemented when the second transaction and the third transaction are distributed.

In addition, the first smart contract includes transmitting the identity information from the operator node to the purchaser node when approval of the purchaser node occurs with respect to the sales policy of the operator node, and the operator node transmits the identity information to the purchaser node. Distributing a second transaction corresponding to the sale of personal information, and distributing a third transaction corresponding to the purchase of the personal information by a purchaser node, may include, by the purchaser node, a state of the first smart contract. Querying; And when the state of the first smart contract matches the purchase condition of the purchaser node, the approval occurs and the identity information is transmitted to the purchaser node by the operator node in response to the implementation of the first smart contract. Step; may further include.

In addition, the personal information may be transmitted from the storage institution node, and may be received from the storage institution node through the execution of a second smart contract with respect to the sales price settlement condition of the user node.

In addition, the second smart contract may be that when the sales price settlement condition of the user node and the sales price settlement condition of the storage institution node are identical, the identity information is transmitted to the user node by the storage institution node. .

In addition, the sales policy includes information on settlement of the sales price according to the type of personal information and sales volume, and the step of calculating the sales price performs settlement according to the first smart contract generated in response to the sales policy. It can be.

Other aspects, features, and advantages other than those described above will become apparent from the detailed contents, claims, and drawings for carrying out the following invention.

According to an embodiment of the present invention made as described above, an individual party may exercise the right to control the use of personal information.

In addition, according to the present invention, it is possible to automate and transparentize the settlement of the sales price through the implementation of a smart contract when a transaction occurs according to the sale of data.

Of course, the scope of the present invention is not limited by these effects.

1 is a view for explaining a personal information (mydata) management and sales environment based on a block chain according to an embodiment of the present invention.
2 is a simple block diagram illustrating a method of selling personal information and calculating a sales price according to an embodiment of the present invention.
3 is a sequence diagram illustrating a method of selling personal information and calculating a sales price according to an embodiment of the present invention.

Hereinafter, various embodiments of the present disclosure will be described in connection with the accompanying drawings. Various embodiments of the present disclosure may be subjected to various changes and may have various embodiments, and specific embodiments are illustrated in the drawings and related detailed descriptions are described. However, this is not intended to limit the various embodiments of the present disclosure to specific embodiments, and it should be understood that all changes and/or equivalents or substitutes included in the spirit and scope of the various embodiments of the present disclosure are included. In connection with the description of the drawings, similar reference numerals have been used for similar elements.

"Includes", which may be used in various embodiments of the present disclosure. Or "may include." The expression, etc. indicates the existence of a corresponding function, operation, or component that has been disclosed, and does not limit one or more additional functions, operations, or components. Also, in various embodiments of the present disclosure, "includes." Or "have." The terms such as, etc. are intended to designate the existence of features, numbers, steps, actions, components, parts, or a combination of them described in the specification, and one or more other features or numbers, steps, actions, components, parts, or It is to be understood that the possibility of the presence or addition of those combinations thereof is not preliminarily excluded.

In various embodiments of the present disclosure, expressions such as "or" include any and all combinations of words listed together. For example, "A or B" may include A, may include B, or may include both A and B.

Expressions such as "first", "second", "first", or "second" used in various embodiments of the present disclosure may modify various elements of various embodiments, but do not limit the corresponding elements. Does not. For example, the expressions do not limit the order and/or importance of corresponding elements. The above expressions may be used to distinguish one component from another component. For example, a first user device and a second user device are both user devices and represent different user devices. For example, without departing from the scope of the rights of various embodiments of the present disclosure, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component.

When a component is referred to as being "connected" or "connected" to another component, the component is directly connected to or may be connected to the other component, but the component and It should be understood that new other components may exist between the other components. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it will be understood that no new other component exists between the component and the other component. Should be able to.

The terms used in various embodiments of the present disclosure are only used to describe a specific embodiment, and are not intended to limit the various embodiments of the present disclosure. Singular expressions include plural expressions unless the context clearly indicates otherwise.

Unless otherwise defined, all terms including technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present disclosure belong.

Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and ideal or excessively formal unless explicitly defined in various embodiments of the present disclosure. It is not interpreted in meaning.

Blockchain networks can include nodes and clients. Nodes can store transaction details, approve transactions, and perform distributed agreements. The client can create a transaction and perform the function of checking the transaction details. From the user's point of view, the nodes of the blockchain can serve as the backend of general services, and the client can serve as a client.

Blockchain nodes have two types of databases. The transaction database can keep all records of the correct transaction, and the application database can apply the stored transaction to the application. The transaction database can be configured through a structure in which blocks called a blockchain are connected. Each block may contain an ordered list of transactions and may be linked according to time order.

A representative example of a transaction through a blockchain can be a cryptocurrency transaction. Cryptocurrency transactions made through the blockchain can be operated by updating the database stored by nodes on a peer-to-peer (P2P) network where all nodes have the same network topology. For example, in the case of virtual currency remittance, when a transaction is created and propagated to the blockchain network, the node generating the block can collect the transaction and store it in the block. You can apply these transactions to update your balance database and propagate the block to other nodes. Other nodes can update their balance database and store blocks according to the propagated block data. Remittance of virtual currency can be completed by updating the balance database and transaction database of all nodes.

A smart contract is a concept that extends the blockchain so that it can be applied to various services. Smart contracts can create contracts with digital instructions and automatically execute contract contents according to conditions. The smart contract blockchain can include two interfaces: transaction and query. The interface through the transaction is stored in the transaction database and can correspond to an approach that changes the state of the smart contract. A query can correspond to reading the state of a smart contract without leaving a record in the transaction database. For example, if a transaction can write, delete, and modify, a query can only execute read.

FIG. 1 is a diagram for explaining an environment for managing and selling mydata based on a block chain according to an embodiment of the present invention.

Referring to FIG. 1, the user terminal 100, a business server 200, a storage institution node 300, a business node 400 and a user terminal 100, a business server 200, a storage organization node 300, and a block chain-based personal information management and sales environment according to an embodiment of the present invention. It may include a buyer node 500. Hereinafter, for convenience of description, a node, an execution terminal, and an execution device are mixed.

The user terminal 100 may communicate with the operator server 200. For example, the user terminal 100 may communicate with an external server and a node on a blockchain network through an application downloaded from the operator server 200. The user terminal 100 may be implemented with various electronic devices such as a smart phone and a desktop, but is not limited thereto, and may be implemented with any type of electronic device having a communication means.

The operator server 200 may be implemented as a server corresponding to a computer or program capable of performing data processing between the user terminal 100 and nodes on the blockchain network. Specifically, the operator server 200 may transmit the request for moving the personal information received from the user terminal 100 to the storage institution node 300, and the registration request for the personal information sales policy received from the user terminal 100 It can be transmitted to the operator node 400. The operator server 200 may be wirelessly connected to the user terminal 100 through Bluetooth, WiFi, or the like, and may exchange data with the user terminal 100 through a network.

The operator server 200 may provide an application including an interface for inputting a sales policy including a description of personal information to be sold and sales conditions to the user terminal 100. This is only an exemplary embodiment, and the operator server 200 may provide an application including an interface for inputting a policy for settlement of sales price and a condition under which the settlement of sales price is to be performed.

Meanwhile, in FIG. 1, the operator server 200 and the operator node 400 are illustrated as being implemented in separate configurations, but according to an embodiment of the present invention, the operator server 200 includes a operator node 400. It can be implemented as When the operator server 200 and the operator node 400 are implemented independently, the operator server 200 may be connected to the operator node 400 by wire or wirelessly to exchange data.

The storage institution node 300, the operator node 400, and the purchaser node 500 constitute the blockchain system of the present invention. Nodes (300, 400, 500) may be a node connected to the operator server 200 among a plurality of nodes constituting the blockchain network, and the operator server 200 requests the blockchain network to change the state of specific user information. In this case, it is a configuration that creates, records, and distributes a transaction by sending a message transaction to the blockchain network.

Nodes (300, 400, 500) are distributed ledger devices and may mean one of the nodes of a blockchain distributed network, and each includes a communication module (not shown), a processing module (not shown), and a memory module (not shown). can do.

In addition, it can play not only the role of a node in the blockchain network, but also as one node among a plurality of nodes that make up the network of the public blockchain, and the relational account, which is an account that directly or indirectly transacts with specific account information in the public blockchain. Index and create relationship account information. In particular, the nodes 300, 400, and 500 are configured to be able to record transactions for the blockchain, but may be configured to allow only indexing of transactions for the public blockchain.

Regarding the type of node, the reference client is a digital wallet management module for users, a mining module for block mining when the consensus algorithm is Proof of Work (POW), A node that includes a Blockchain Database that stores all or at least some of the blocks of the entire blockchain, and a Network Routing Module that broadcasts transactions to the blockchain distributed network. It can mean, for example, a client of Bitcoin Core. A full node may mean a node including a blockchain database and a network routing module. The Solo Miner Node may mean a node including a mining module, a blockchain database, and a network routing module. The mining node may mean a light node including a gateway router and a mining module connected to a pool mining node, which means a node of a mining pool. The Lightweight Wallet Node generally stores only the header information of the blockchain, has a digital wallet management module to store the user's digital wallet, and includes a network routing module, but does not include a blockchain database. It can mean a lightweight node that relies on a server owned by a third party to create transactions or access a blockchain distributed network.

In the blockchain network according to an embodiment of the present invention, nodes 300, 400, and 500 may mean nodes including at least a blockchain database and a network routing module among the above nodes. For the public blockchain, nodes 300, 400, and 500 according to an embodiment of the present invention may mean nodes including at least a gateway router module. That is, in the nodes 300, 400, and 500 according to an embodiment of the present invention, the block chain network and the public block chain of the present invention may be configured to store a memory module or to be connected to other nodes stored in the memory module.

The communication module of nodes (300, 400, 500) is a network routing module that broadcasts a transaction to a blockchain distributed network or a gateway router connected to a pool mining node. It may mean (Gateway Router), etc.

The processing module of nodes 300, 400, 500 is a module that processes the contents of transactions stored in blocks of the blockchain, which are distributed ledgers stored in the memory module. The processing module according to an embodiment of the present invention may be configured as a virtual machine (VM) such as an Ethereum Virtual Machine to process a smart contract of a blockchain network. This virtual machine is, for example, a runtime for executing byte codes generated by compiling codes (smart contracts, smart contracts) made in high-level languages such as Mutan, LLL, Serpent, and Solidity, and memory and memory in addition to OPCODE and Stack. It is also the subject of using storage.

The memory module of the nodes 300, 400, 500 is a module that stores a block chain, which is a distributed ledger, and may refer to a block chain database (DB) that stores all or some blocks of the entire block chain. The memory module can store all or part of the blockchain, and in each block header, the hash value (hash) of the previous block header, the answer value (nonce), the hash value of the transaction group, and other information about the generated time are Timestamp. , Difficulty, which means mining difficulty, and Block Number, which means the number of blocks, may be included. Each block body (Contents) may include at least one or more transaction information (for example, a self-information transfer transaction according to an embodiment of the present invention).

The transaction information may include service account address information, user account information, identification information hash value, relationship account information, and the like. When transaction information is stored and executed in a block, such service account address information, account information, identification information hash value, relationship account information, etc. are included in the storage or memory of the service account. Can be saved on.

When the storage organization node 300 receives a request to move the user's personal information, the storage organization node 300 transmits the user information to the operator node 400. At this time, the storage institution node 300 may generate a transaction for the transfer of personal information, record it in a block, and distribute it to nodes on the blockchain network. In this case, the storage institution may be an institution or a company that stores the user's mydata, such as the National Statistical Office or hospital, but is not limited thereto.

According to an embodiment of the present invention, the transfer of personal information to the operator node 400 of the storage institution node 300 may be automatically performed through activation of a smart contract for settlement of sales price. In this case, the policy for the settlement of the sales price may be agreed upon when the user terminal 100 requests to transmit the personal information (mydata) to the storage institution node 300. According to an embodiment of the present invention, the user terminal 100 may distribute a transaction corresponding to a condition for settlement of sales price to the blockchain DB through the operator node 400. The user terminal 100 may have different sales settlement conditions depending on the type of personal information, sales volume, and the like.

The operator node 400 is a component for receiving various instructions from the user terminal 100 and generating a transaction corresponding thereto. Specifically, the operator node 400 may receive a description of the personal information (mydata) from the user terminal 100 and a description of the personal information sales policy including the conditions for selling the personal information.

At this time, the description of the personal information may include at least one of the type of personal information, the name of the personal information, and the date of creation of the personal information, but is not limited thereto, and various forms that can be provided for the sale of personal information according to the type of data May include information of.

Sales conditions may correspond to conditions for selling personal information. According to an embodiment of the present invention, if the purchaser node 500 approves it through a smart contract, it may correspond to information that needs to be set in advance so that a transaction can be automatically performed. The sales condition may include the contents of the sales consideration desired by the user, including a sales period, a sales amount, and a sales range.

For example, the user terminal 100 may set a sales policy under conditions such as a sales period of 3 years and personal information excluding x-ray information. The operator node 400 may update the smart contract database through a transaction corresponding to the policy to allow information use and prohibit the use of x-ray information for 3 years, and if the purchaser node 500 has approval for the condition, the smart contract The contract can be activated. However, this is only an example, and a smart contract may be activated through a sales policy of various conditions.

This is only an embodiment, and the operator node 400 generates a transaction by receiving a request for a policy for the settlement of sales price and a condition for performing a smart contract for settlement of the sales price, in addition to the policy for the sale and sale of self-information. I can.

Meanwhile, the operator node 400 may receive a virtual currency account for selling personal information through the sale description or separately. The operator server 200 may provide an application including an interface for inputting a virtual currency account for selling personal information to the user terminal 100. The operator node 400 may receive a virtual currency account through an interface for inputting information constituting the sell data description, and may receive only a virtual currency account through a separate interface.

The purchaser node 500 may correspond to a computing device capable of searching for the description of the seller's personal information inputted by the user terminal 100 and purchasing data, and may be implemented as a smartphone, a laptop computer, or a computer. It is not limited thereto, and may be implemented in various devices such as a tablet PC. The plurality of purchaser nodes 500 may be connected to the operator node 400 at the same time.

The buyer node 500 can query the smart contract state recorded in the blockchain DB (for example, a public blockchain) through a query, and if the condition matches the purchase policy, the user information through the smart contract Can be purchased.

Meanwhile, the blockchain DB or blockchain network of the present invention refers to a database in which transactions are connected to each block and recorded in databases 310, 410, 510 included in each node by nodes 300, 400, 500. do. The blockchain DB can check the source of personal information designated by the user terminal 100. Specifically, the blockchain DB may perform a procedure for confirming in advance information on the person who sells and sells that the operator node 200 intends to sell. For example, it is possible to check whether the source of information about the person who sells is consistent with the description of the data input by the user terminal 100 or the description of the sale including the terms of sale.

Smart contracts stored in the blockchain DB can verify, record, and distribute transactions. For example, in the case of Ethereum, the code of such a smart contract can be written in the languages of Solidity, Serpent, LLL, and Mutan. Currently, Solidity is mainly used, and the syntax is similar to JavaScript. Smart contracts are program code processed by processing modules, including "variables", "structures" and "functions". Such smart contract code can be converted into byte code through a compilation process. The bytecode is compiled through the Solidity Realtime Compiler. Solidity's bytecodes are all hexadecimal codes, and if Solidity allocates this bytecode as Payload (data:) without a destination address and distributes a transaction to the blockchain, a block is created by the miner, and these transactions are It is regarded as a contract creation transaction, and is returned by putting the address of the created (distributed) contract in the ontractAddress: field.

Smart contracts have only logic, and applications are required to interact with users or external systems. Applications such as HTML+CSS+JavaScript, Application Server, and Wallet are components that interact with smart contracts, for example, through an interface with Ethereum. Smart contract codes can be largely divided into [Creation/Deployment] [Invoke by Message] [Call].

The databases 310, 410, and 510 may store various pieces of information necessary for data transaction processing between the user terminal 100 and the plurality of nodes 300, 400, and 500. The databases 310, 410, and 510 may store data transaction records between the operator node 400 and the purchaser node 500, smart contract information made between both nodes for data transaction, and account information of both nodes.

According to an embodiment of the present invention, each of the databases 300, 400, and 500 may be implemented including a transaction database and a smart contract database, respectively. The transaction database may store information related to data transactions, and the transaction related information may store input values for changing the state of the smart contract. The smart contract database can store the latest state of the smart contract, and the application associated with the smart contract can change the state of the smart contract using the input value included in the transaction.

That is, the databases 300, 400, and 500 may include an independently implemented transaction database and a smart contract database, and may be implemented with a transaction database and a smart contract database in one configuration.

In addition, the databases 300, 400, 500 may be composed of at least one independent sub-database that stores information belonging to a specific range, and at least one independent sub-database may be composed of an integrated database in which one is integrated. have.

When configured with at least one independent sub-database, each of the sub-databases may be wirelessly connected through Bluetooth, WiFi, or the like, and data may be exchanged with each other through a network.

According to an embodiment of the present invention, the blockchain DB relates to self-selling information through a blockchain-based contract between the operator node 400 and the purchaser node 500 according to the approval of the sale conditions by the purchaser node 500. Transactions can be performed automatically. Here, a blockchain-based contract can correspond to a blockchain-based smart contract.

Assuming that a smart contract in which a contract between the operator node 400 and the purchaser node 500 is automatically concluded has been established if the sale conditions are approved, the blockchain DB distributes and shares the related transaction in each DB block. I can. In other words, the blockchain DB can perform transaction processing by updating the sales result of the transaction for the database existing in all nodes on the blockchain network.

According to an embodiment of the present invention, the blockchain DB may control the provision of personal information related to the sale data description and the provision of virtual currency to a virtual currency account according to a blockchain-based contract. When a blockchain-based contract is established, the operator node 400 can provide the user information stored in the database to the purchaser node 500, and the virtual currency account associated with the user terminal 100 in the virtual currency account associated with the purchaser node 500 You can provide cryptocurrency corresponding to the sales amount with a currency account.

In an embodiment of the present invention, the block chain DB may allow the operator node 400 to first provide the purchaser node 500 with personal information related to the sale description when a block chain-based contract is established. When a block-chain-based contract is established, personal information may be first provided to the purchaser node 500 regardless of whether the sales amount is remitted to the virtual currency account associated with the user terminal 100. However, this is only an embodiment, and when the step of receiving a transaction for remittance of the sales amount is included in the smart contract, the personal information can be transmitted only when the sales amount is remitted.

In an embodiment of the present invention, the blockchain DB may allow the virtual currency owned by the virtual currency provider to be remitted to the virtual currency account according to the blockchain-based smart contract when the personal information is provided. In this case, the virtual currency provider may correspond to a user of the purchaser node 500 and may correspond to a third party other than the user of the purchaser node 500. Blockchain DB can complete the remittance of virtual currency by updating the database of virtual currency accounts that exist in all nodes on the blockchain network.

Blockchain DB may allow a decentralized application installed on the operator node 400 to perform a blockchain-based contract when the sales conditions are approved. Distributed applications may include backend code running on a blockchain network, and may include frontend code and interfaces that can call backend code.

The blockchain DB may transmit personal information to the purchaser node 500 through a distributed application installed in the operator node 400, and receive personal information through a distributed application installed in the purchaser node 500. . Distributed applications installed on each node can form a blockchain network corresponding to a P2P network by a backend process regardless of whether they are running or not.

Distributed applications can notify all nodes in the blockchain network of the completion when transmission or reception of their own information is completed or when a blockchain-based contract is completed.

According to an embodiment of the present invention, a smart contract database of a blockchain DB may be stored so that a smart contract is executed under the condition that the self-information sales transaction and the self-information purchase transaction are distributed.

Specifically, the operator node 400 may record and distribute a transaction corresponding to the sale of the personal information in the blockchain DB, and the purchaser node 500 may transmit a transaction corresponding to the purchase of the personal information to the blockchain DB. Can be recorded and distributed. When each transaction is recorded, the smart contract of the blockchain DB is activated and the operator node 400 can be controlled to settle the sales price.

More specifically, when the receipt of the transaction corresponding to the activation of the smart contract is confirmed, the blockchain DB and the virtual currency account and storage institution node 300 associated with the user terminal 100 in the virtual currency account associated with the operator node 400 It is possible to automatically settle the sales price by providing virtual currency to the associated virtual currency account.

In this case, the policy for the settlement of the sales price may be agreed upon when the user terminal 100 requests to transmit the personal information (mydata) to the storage institution node 300. According to an embodiment of the present invention, the user terminal 100 may distribute a transaction corresponding to a condition for settlement of sales price to the blockchain DB through the operator node 400. The user terminal 100 may have different sales settlement conditions depending on the type of personal information, sales volume, and the like.

Meanwhile, the distributed blockchain DB may be a public blockchain, and the storage company node 300 may query the sales price settlement policy for the user information through a query interface. The blockchain DB can make a transaction according to the approval of the storage company node 300 as a condition for activating the smart contract because the sales price settlement policy of the user terminal 100 and the storage company node 300's personal information transmission condition are identical. .

For example, the user terminal 100 may classify the type of personal information according to importance and classify it into grades 1 to 5, and the storage institution node 300 generates higher profits as the level 1 personal information with higher importance. A smart contract may be created through the operator node 400 so as to be settled. As another example, the user terminal 100 may generate a smart contract through the operator node 400 so that the storage institution node 300 receives higher profits when the sales amount of the user's information is sold more than a preset amount. However, this is only an exemplary embodiment, and the user terminal 100 may generate a smart contract under various conditions for settlement of sales price.

Through this, the present invention has the effect of enabling user-led utilization by actively providing personal information of higher importance to the operator node 400 by the storage institution.

That is, according to the present invention, the process of transmitting self-information from the storage institution node 300 to the operator node 400, the process of selling self-information from the operator node 400 to the purchaser node 500, and the operator node 400 ) To the user terminal 100 and the storage institution node 300 can be performed through a smart contract.

Through this, in the present invention, the user terminal 100 can exercise the right to control the use of personal information only by creating a smart contract for the sales price settlement policy and the personal information sales policy, and automation and transparency of the sales price settlement may be possible.

2 is a simple block diagram illustrating a method of selling personal information and calculating a sales price according to an embodiment of the present invention.

Referring to FIG. 2, the operator node 400 may receive a request for registration of a sales policy of the user information from the user terminal 100 (S210). In this case, the self-information sales policy may be the self-information that the operator node 400 receives in advance from the storage institution node 300 and is stored and managed. According to an embodiment of the present invention, the personal information received from the storage institution node 300 may be received by a smart contract generated according to the sales price settlement policy of the user terminal 100.

The operator node 400 may distribute a first transaction corresponding to the sales policy in response to the sales policy registration request (S220). In addition, the operator node 400 may generate a smart contract corresponding to the first transaction (S230). Specifically, the operator node 400 may record the first transaction generated in response to the sales policy in a block and distribute it to other nodes in the blockchain DB. Accordingly, each node can change the smart contract state by updating the smart contract database.

The operator node 400 may distribute a second transaction corresponding to the sale of the personal information, and distribute a third transaction corresponding to the purchase of the personal information by the purchaser node 500 (S240).

According to an embodiment of the present invention, the sale of personal information may be automatically performed through a smart contract from the purchaser node 500 that has approved the sale policy received from the user terminal 100.

In response to the execution of the smart contract according to the distribution of the second transaction and the third transaction, the operator node 400 may settle the sales price of the user information to the user terminal 100 and the purchaser node 500 (S250).

According to an embodiment of the present invention, the settlement of the sales price may be different depending on the type of personal information, sales volume, and the like. The contents of the sale price may be agreed upon by the user terminal 100 and the purchaser node 500. Specifically, the user terminal 100 can create a smart contract through the operator node 300 with a policy for settlement of sales price, and the purchaser node 500 automatically transmits personal information that meets the condition by approving the condition. It can be one.

3 is a sequence diagram illustrating a method of selling personal information and calculating a sales price according to an embodiment of the present invention.

Referring to FIG. 3, the user terminal 100 may request the storage institution node 300 to move his/her information (S300). In this case, the user terminal 100 may request to move to the storage institution node 300 through the operator node 400 using an application downloaded from the operator server 200.

The storage institution node 300 may transmit the user's personal information to the operator node 400 in response to a request for moving the user information (S310). According to an embodiment of the present invention, although not shown in FIG. 3, the storage institution node 300 may transmit the identity information to the operator node 400 through a smart contract for the sales price settlement policy.

Thereafter, the storage institution node 300 may generate a transaction for transmitting the personal information, and transmit and distribute it to the blockchain DB (S320). In other words, the blockchain DB can create a block and record the transmitted transaction in the block.

Meanwhile, the user terminal 100 may request the operator node 200 to register the self-information sales policy (S330). The operator node 400 may generate a transaction corresponding to the sales policy and distribute it to a blockchain DB (S340). Accordingly, a smart contract requested by the user terminal 100 may be generated through the blockchain DB (S350).

On the other hand, when the operator node 400 sells and transmits its own information to the buyer node 500 (S360), the operator node 400 may transmit a transaction corresponding to the fact of sale to the blockchain DB (S370), and the buyer The node 500 may transmit a transaction corresponding to the purchase fact to the blockchain DB (S380). In other words, the blockchain DB can create a block and record the transmitted transaction in the block.

On the other hand, according to the transaction received from the operator node 400 and the purchaser node 500, the smart contract may be implemented (S390). Accordingly, the operator node 400 may settle the sales price to the user terminal 100 and the storage institution node 300 (S391).

In this case, the settlement of the sales price through the operator node 400 may be different according to the settlement policy agreed between the user terminal 100 and the purchaser node 500. According to an embodiment of the present invention, the sales price settlement ratio may be different according to the type of personal information and the amount of sales.

Meanwhile, the methods according to various embodiments of the present invention described above may be implemented in the form of an application that can be installed in an existing electronic device.

In addition, the above-described methods according to various embodiments of the present disclosure may be implemented only by software upgrade or hardware upgrade of an existing electronic device.

In addition, various embodiments of the present invention described above may be performed through an embedded server provided in an electronic device or an external server of the electronic device.

Meanwhile, according to an embodiment of the present invention, various embodiments described above are a recording medium that can be read by a computer or a similar device using software, hardware, or a combination thereof. computer readable recording medium). In some cases, the embodiments described herein may be implemented by the processor itself. According to software implementation, embodiments such as procedures and functions described in the present specification may be implemented as separate software modules. Each of the software modules may perform one or more functions and operations described herein.

Meanwhile, a computer or a similar device is a device capable of calling a stored command from a storage medium and operating according to the called command, and may include a device according to the disclosed embodiments. When the command is executed by the processor, the processor may perform a function corresponding to the command directly or by using other components under the control of the processor. Instructions may include code generated or executed by a compiler or interpreter.

The recording medium that can be read by the device may be provided in the form of a non-transitory computer readable recording medium. Here,'non-transient' means that the storage medium does not contain a signal and is tangible, but does not distinguish between semi-permanent or temporary storage of data in the storage medium. In this case, the non-transitory computer-readable medium refers to a medium that stores data semi-permanently and can be read by a device, rather than a medium that stores data for a short moment, such as a register, a cache, and a memory. Specific examples of the non-transitory computer-readable medium may include CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but these are only exemplary, and those of ordinary skill in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. . Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100: user terminal
200: operator server
300: Archive node
400: operator node
500: buyer node

Claims (8)

In the method of settlement of personal information sales price using a blockchain network,
Receiving, by the operator node, a request for registration of a sales policy of the user information from the user terminal;
Distributing, by the operator node, a first transaction corresponding to the sales policy in response to the sales policy registration request;
Generating, by the operator node, a first smart contract corresponding to the first transaction;
Distributing a second transaction corresponding to the self-information sale by the operator node, and distributing a third transaction corresponding to the self-information purchase by the purchaser node; And
In response to the execution of the first smart contract according to the distribution of the second transaction and the third transaction, calculating the sales price of the personal information to the user terminal and the purchaser node by the operator node;
Including,
The first smart contract is executed when the second transaction and the third transaction are distributed, and the second and third transactions are distributed when approval of the purchaser node occurs with respect to the sales policy of the operator node,
The sales policy includes a sales price settlement condition determined according to at least one of the type of personal information, a sales volume, and a sales period, and the sales price settlement condition is agreed in advance by the user terminal and the purchaser node. How to settle the sale price. The method of claim 1,
The sales policy further includes at least one of a sales amount and a sales range. delete The method of claim 1,
The first smart contract includes transmitting the identity information from the operator node to the buyer node when approval of the purchaser node occurs with respect to the sales policy of the operator node,
Distributing a second transaction corresponding to the self-information sale by the operator node, and distributing a third transaction corresponding to the self-information purchase by the purchaser node,
Inquiring, by the purchaser node, a state of the first smart contract; And
If the state of the first smart contract and the purchase condition of the purchaser node match, the approval occurs and the identity information is transmitted to the purchaser node by the operator node in response to the implementation of the first smart contract The sales price settlement method further including; The method of claim 1,
The self-information is transmitted from the storage institution node, and is received from the storage institution node through the implementation of a second smart contract with respect to the sales price settlement condition of the operator node,
The sales price settlement conditions, characterized in that the pre-agreement between the user terminal and the purchaser node, sales price settlement method. The method of claim 5,
In the second smart contract, when the sales price settlement condition of the operator node and the sales price settlement condition of the storage institution node match, the self-information is transmitted to the operator node by the storage institution node. Way. The method of claim 1,
In the step of calculating the sales price, a sales price settlement method of performing settlement according to the first smart contract generated in response to the sales policy. The method of claim 5,
The above sales price settlement method is:
Receiving, by the storage organization node, a request to move the personal information from the user terminal; And
The operator node receiving the identity information from the storage institution node; further comprising,
The sales price settlement condition, characterized in that in the step of receiving the request for moving the personal information from the user terminal by the storage institution node, a pre-agreement between the user terminal and the purchaser node.

Images