KR102302955B1 - Blockchain and cloud-based asset trading platform server that enables real asset trading through tokenization of assets and operating method thereof - Google Patents

Abstract

Disclosed are a blockchain-based asset trading platform server which enables spot asset trading through asset tokenization and operation method thereof. The present invention relates to a blockchain-based asset trading platform server and operation method thereof, which support a seller and a buyer of a spot asset to easily inquire and trade spot asset information online.

Description

A blockchain and cloud-based asset trading platform server that enables spot asset trading through tokenization of assets and its operation method }

The present invention relates to a blockchain-based asset trading platform server that enables in-kind asset transactions through tokenization of assets and an operating method thereof.

Amid unstable economic conditions, more and more people are showing interest in spot assets, which are expected to increase in value steadily. In particular, as the expected return on real estate investment is decreasing due to loan regulations and increased holding tax, people are showing interest in trading in precious metals such as gold and diamonds, artworks, and commemorative coins in addition to real estate.

Accordingly, as the utilization of spot asset transaction information using the Internet increases, various spot asset trading platforms that mediate matching between sellers and buyers of spot assets are emerging.

However, the existing spot asset investment and transaction management platforms are only operating at a level that provides services that simply connect buyers and sellers, and do not provide services that allow even the transaction contract of spot assets. It was difficult to see it as an online spot asset trading platform.

This is because a reliable contract storage method has not been established for the seller and the buyer to trust and proceed with each other's trade in spot assets, and there are concerns about the leakage of data necessary for trade in spot assets, such as data related to spot assets. It can be seen that there are not many sellers or buyers who want to use it.

On the other hand, recently, block chain technology that can ensure the integrity of the data by composing predetermined data into chained blocks and storing them in nodes rather than on a central server, and to protect important information such as personal information Tokenization technology that converts information into tokens and uses them in the data transmission process to prevent leakage of original data for important information is widely used.

Here, in the blockchain technology, when predetermined data called a transaction is generated, any one node device among a plurality of node devices participating in the blockchain network is transferred By creating a new block containing the transaction based on the block, linking the block to the block chain data, and distributing the block to other node devices through the block chain network, predetermined data is It refers to a technology that allows distributed storage in node devices of

Therefore, by enabling the spot asset transaction service to store and manage data related to the spot asset transaction information based on the block chain, the seller and the buyer of the spot asset can easily inquire and trade the spot asset information, and the spot asset By tokenizing and managing information, there is a need for research on technologies that can increase the reliability and safety of spot asset transactions.

An object of the present invention is to provide an asset trading platform server and an operating method thereof that support sellers and buyers of spot assets to easily inquire and trade spot asset information online.

In addition, the asset trading platform server and the method of operation thereof according to the present invention are to prevent leakage of data on the spot asset information by tokenizing and managing the spot asset information, and to increase the reliability of the spot asset transaction.

A blockchain-based asset trading platform server that enables in-kind asset transactions through tokenization of assets according to an embodiment of the present invention is a predetermined private key for electronic signature - The private key and the public key constituting the key pair are It is pre-distributed to the buyer terminals of a plurality of buyers who are registered as buyer members - a private key storage unit in which is stored, seller terminal information of a plurality of sellers registered as seller members, and the goods registered by each of the plurality of sellers Spot asset information for the asset - The spot asset information includes information on the name, saleable quantity and unit price of each spot asset - and a spot asset token corresponding to each spot asset - The spot asset token includes each spot asset The hash value generated by applying the data of the in-kind asset information about the asset as an input to a preset hash function, and the digital signature value generated by encrypting the hash value with the private key - The stored in-kind asset information When the first spot asset information for the first spot asset is received from the database, the seller terminal of the first seller among the plurality of sellers, and a spot asset registration request for the first spot asset is received, the first spot asset applying data of information to the hash function as an input to generate a first hash value, encrypting the first hash value with the private key to generate a first digital signature value, the first hash value and the first electronic signature After generating a first spot asset token including a signature value, the first spot asset information and the first spot asset token are stored in the spot asset information database in correspondence with the seller terminal information of the first seller When a request for provision of spot asset information on a second spot asset registered by a second seller of the plurality of sellers is received from a storage unit, a buyer terminal of a first buyer among the plurality of buyers, from the spot asset information database Extracting a second spot asset token corresponding to the second spot asset A token transmission unit for transmitting to the buyer terminal of the first buyer, a verification completion message indicating that the verification of the second spot asset token has been completed from the purchaser terminal of the first buyer - The verification completion message is the buyer of the first buyer After the second spot asset token is received by the terminal, the buyer terminal of the first buyer converts the electronic signature value included in the second spot asset token to the public key distributed in advance to the buyer terminal of the first buyer As a result of comparing the decrypted value and the hash value of the data of the spot asset information included in the second spot asset token to match each other, when it is confirmed that the two values match each other, for the second spot asset token When - means a message generated to indicate that verification is complete - is received, the second spot asset information that is the spot asset information for the second spot asset is extracted from the spot asset information database, and the buyer terminal of the first buyer a purchase request for the second spot asset by the purchase quantity according to the purchase quantity information together with the purchase quantity information for the second spot asset from the purchaser terminal of the first buyer is received After confirming the seller terminal information of the second seller from the spot asset information database, purchase authorization request transmission for transmitting a purchase authorization request for the second kind asset equal to the purchase quantity to the seller terminal of the second seller When a purchase approval confirmation message is received from the seller terminal of the second seller corresponding to the purchase approval request for the second spot asset equal to the purchase quantity, the name of the second spot asset, the second spot asset A transaction generating unit for generating a spot asset transaction transaction including the purchase quantity, the unit price for the second spot asset, information of the first buyer and information of the second seller, and a plurality of blocks constituting the blockchain network A first node device that is any one of the node devices and a blockchain registration request unit that transmits a registration request of the spot asset transaction transaction to the blockchain network while transmitting the spot asset transaction transaction to the first node device after selecting , wherein the first node device includes When the in-kind asset transaction transaction is received from the asset trading platform server, a block including the in-kind asset transaction transaction is generated based on the block chain data stored in the memory of the first node device, and the block is converted into the block chain After chaining the data, the block is propagated to other node devices except for the first node device among the plurality of node devices through the blockchain network.

In addition, according to an embodiment of the present invention, a method of operating a blockchain-based asset trading platform server that enables in-kind asset transactions through tokenization of assets is a predetermined private key for electronic signature - the private key and the key pair. The public key constituting the public key is pre-distributed to the buyer terminals of a plurality of buyers who are registered as buyer members - maintaining a stored private key storage unit, seller terminal information of a plurality of sellers registered as seller members, the above Spot asset information for the spot assets registered by each of the plurality of sellers - The spot asset information includes information on the name, saleable quantity and unit price of each spot asset - and spot asset tokens corresponding to each spot asset - The in-kind asset token includes a hash value generated by applying data of the in-kind asset information for each spot asset as an input to a preset hash function, and an electronic signature value generated by encrypting the hash value with the private key. - maintaining the stored spot asset information database, while receiving the first spot asset information for the first spot asset from the seller terminal of the first seller among the plurality of sellers, the spot for the first spot asset When an asset registration request is received, a first hash value is generated by applying the data of the first in-kind asset information as an input to the hash function, and a first electronic signature value is generated by encrypting the first hash value with the private key and, after generating a first spot asset token including the first hash value and the first electronic signature value, the first spot asset information and the first spot asset token are stored in the spot asset information database to the first seller Storing in correspondence with the seller terminal information of the plurality of buyers, when a request for provision of spot asset information for a second spot asset registered by a second seller among the plurality of sellers is received from a buyer terminal of a first buyer among the plurality of buyers , a second corresponding to the second spot asset from the spot asset information database extracting a spot asset token and transmitting it to the buyer terminal of the first buyer; After receiving the second spot asset token to the buyer terminal of the first buyer, the buyer terminal of the first buyer pre-distributes the electronic signature value included in the second spot asset token to the buyer terminal of the first buyer As a result of comparing the hash value of the data of the spot asset information included in the second spot asset token with the value decrypted with the public key, when it is confirmed that both values match each other, the second Means a message generated to indicate that verification of the spot asset token has been completed - When is received, the second spot asset information, which is the spot asset information for the second spot asset, is extracted from the spot asset information database to extract the second spot asset information 1 The step of transmitting to the buyer terminal of the first buyer, the purchase request for the second spot asset by the purchase quantity according to the purchase quantity information together with the purchase quantity information for the second spot asset from the buyer terminal of the first buyer Upon receiving, after confirming the seller terminal information of the second seller from the spot asset information database, transmitting a purchase approval request for the second spot asset equal to the purchase quantity to the seller terminal of the second seller; When a purchase approval confirmation message corresponding to a purchase approval request for the second spot asset equal to the purchase quantity is received from the seller terminal of the second seller, the name of the second spot asset, the second spot asset generating a spot asset transaction transaction including the purchase quantity, the unit price for the second spot asset, the information of the first buyer and the information of the second seller, and any of a plurality of node devices constituting the blockchain network After selecting one first node device, the sending a registration request of the spot asset transaction transaction to the blockchain network while transmitting the spot asset transaction transaction to a first node device, wherein the first node device sends the spot asset transaction transaction from the asset trading platform server When an asset transaction transaction is received, a block including the in-kind asset transaction transaction is generated based on the block chain data stored in the memory of the first node device, and the block is chained to the block chain data. , propagates the block to other node devices except for the first node device among the plurality of node devices through the blockchain network.

The present invention can provide an asset trading platform server and an operating method thereof that support the seller and the buyer of spot assets to easily inquire and trade spot asset information online.

In addition, the asset trading platform server and the method of operation thereof according to the present invention can prevent the leakage of data on the spot asset information by tokenizing and managing the spot asset information, and can increase the reliability of the spot asset transaction. .

1 is a diagram illustrating the structure of a blockchain-based asset trading platform server that enables in-kind asset transactions through tokenization of assets according to an embodiment of the present invention.
2 is a flowchart illustrating an operation method of a blockchain-based asset trading platform server that enables in-kind asset transactions through tokenization of assets according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. These descriptions are not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. While describing each drawing, like reference numerals are used for similar components, and unless otherwise defined, all terms used in this specification, including technical or scientific terms, refer to those of ordinary skill in the art to which the present invention belongs. It has the same meaning as is commonly understood by those who have it.

In this document, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated. In addition, in various embodiments of the present invention, each of the components, functional blocks or means may be composed of one or more sub-components, and the electrical, electronic, and mechanical functions performed by each component are electronic. A circuit, an integrated circuit, an ASIC (Application Specific Integrated Circuit), etc. may be implemented with various well-known devices or mechanical elements, and may be implemented separately or two or more may be integrated into one.

On the other hand, the blocks in the accompanying block diagram or steps in the flowchart are computer program instructions that are loaded in a processor or memory of equipment capable of data processing, such as a general-purpose computer, a special-purpose computer, a portable notebook computer, and a network computer, and perform specified functions. can be interpreted as meaning Since these computer program instructions may be stored in a memory provided in a computer device or in a memory readable by a computer, the functions described in the blocks of the block diagrams or the steps of the flowcharts are produced as articles of manufacture containing instruction means for performing the same. could be In addition, each block or each step may represent a module, segment, or portion of code comprising one or more executable instructions for executing the specified logical function(s). It should also be noted that, in some alternative embodiments, it is also possible for the functions recited in blocks or steps to be executed out of the prescribed order. For example, two blocks or steps shown one after another may be performed substantially simultaneously or in the reverse order, and in some cases, some blocks or steps may be omitted.

1 is a diagram illustrating the structure of a blockchain-based asset trading platform server that enables in-kind asset transactions through tokenization of assets according to an embodiment of the present invention.

First, in the present invention, it is assumed that a plurality of node devices ( 101 , 102 , 103 , 104 ) constitute a block chain network in order to distribute and store information related to a spot asset transaction in the memory of each node device. Here, the plurality of node devices 101 , 102 , 103 , 104 means a microprocessor-based computing device having a network function, and the memory of each node device stores a transaction including information related to a transaction of a given spot asset. Block chain data in which blocks generated based on the chain are connected are stored. The above block chain data contains information related to the spot asset transaction, including 'name of spot asset, purchase quantity for spot asset, unit price of spot asset, buyer's information and seller's information'. The blocks included are data connected by a chain, and because they are stored in the memory of each of the plurality of node devices, the plurality of node devices can form a block chain network.

At this time, the blockchain-based asset trading platform server 110 that enables the in-kind asset transaction through the tokenization of the asset according to the present invention includes the private key storage unit 111, the spot asset information database 112, and the spot asset information. It includes a storage unit 113 , a token transmission unit 114 , a spot asset information provision unit 115 , a purchase approval request transmission unit 116 , a transaction generation unit 117 , and a blockchain registration request unit 118 .

The private key storage unit 111 stores a predetermined private key for digital signature. Here, the private key and the public key constituting the key pair are pre-distributed to the purchaser terminals of a plurality of purchasers registered as purchaser members.

In the spot asset information database 112, seller terminal information of a plurality of sellers who are registered as seller members, spot asset information about the spot assets registered by each of the plurality of sellers, and spot asset tokens corresponding to each spot asset are stored. have.

Here, the spot asset information includes information about a name, a sellable quantity, and a unit price for each spot asset, and the spot asset token includes data of the spot asset information for each spot asset as an input to a preset hash function. A hash value generated by being authorized and an electronic signature value generated by encrypting the hash value with the private key are included.

In relation to this, information may be stored in the spot asset information database 112 as shown in Table 1 below.

Seller terminal information Spot asset information spot asset token Seller 1's
terminal information spot asset 1 Name: pure gold
Available quantity for sale: 37.5g (10 dong)
Unit price: ￦230,000/money (3.75g) Spot Asset Token 1 Seller 2's
terminal information spot assets 2 Name: crude oil
Available quantity: 100 barrels
Unit price: ￦200,000/barrel Spot Asset Token 2 ... ... ... ...

The spot asset information storage unit 113 receives the first spot asset information on the first spot asset from the seller terminal 140 of the first seller among the plurality of sellers, and registers the spot asset for the first spot asset. When the request is received, applying the data of the first in-kind asset information as an input to the hash function to generate a first hash value, and encrypting the first hash value with the private key to generate a first electronic signature value, After generating a first spot asset token including the first hash value and the first electronic signature value, the first spot asset information and the first spot asset token are transferred to the spot asset information database 112 by the first seller. It is stored in correspondence with the seller terminal 140 information.

For example, the spot asset information storage unit 113 is the seller terminal 140 of the first seller among the plurality of sellers, from the seller terminal 140 of 'seller 1' to the 'kind asset 3' as spot asset information. When 'Name: Commemorative Coin, Available Quantity: 9, Unit Price: ￦150,000/piece' is received and a request for registration of real assets for 'Spot Asset 3' is received, applying data to the hash function as an input to generate a first hash value, encrypting the first hash value with the private key to generate a first digital signature value, the first hash value and the first digital signature value After generating 'spot asset token 3' including It can be stored as shown in Table 2 below.

Seller terminal information Spot asset information spot asset token Seller 1's
terminal information spot asset 1 Name: pure gold
Available quantity for sale: 37.5g (10 dong)
Unit price: ￦230,000/money (3.75g) Spot Asset Token 1 spot assets 3 Name: Commemorative Coin
Available quantity: 9
Unit price: ￦150,000/piece spot asset token 3 Seller 2's
terminal information spot assets 2 Name: crude oil
Available quantity: 100 barrels
Unit price: ￦200,000/barrel Spot Asset Token 2 ... ... ... ...

When the token transmission unit 114 receives a request to provide spot asset information on a second spot asset registered by a second seller among the plurality of sellers from the buyer terminal 130 of the first buyer among the plurality of buyers, A second spot asset token corresponding to the second spot asset is extracted from the spot asset information database 112 and transmitted to the buyer terminal 130 of the first buyer.

That is, the token transmission unit 114 receives a request for provision of spot asset information on the second spot asset from the buyer terminal 130 of the first buyer, and sends the second spot to the buyer terminal 130 of the first buyer. Prior to transmitting the spot asset information corresponding to the asset, the second spot asset token corresponding to the second spot asset may be first transmitted, thereby enhancing security for the spot asset information.

At this time, when the second spot asset token is received from the asset trading platform server 110 , the buyer terminal 130 of the first buyer converts the electronic signature value included in the second spot asset token to the buyer terminal of the first buyer. Decrypt with the public key distributed in advance in 130, and compare whether the decrypted value matches the hash value of the data of the spot asset information included in the second spot asset token to confirm that the two values match each other In this case, after generating a verification completion message indicating that verification of the second spot asset token has been completed, the verification completion message may be transmitted to the asset trading platform server 110 .

When the verification complete message indicating that the verification of the second spot asset token is completed is received from the purchaser terminal 130 of the first purchaser, the spot asset information providing unit 115 receives the information from the spot asset information database 112 The second spot asset information, which is spot asset information on the second spot asset, is extracted and transmitted to the buyer terminal 130 of the first buyer.

That is, the spot asset information providing unit 115 transmits the second spot asset information to the buyer terminal 130 of the first buyer only when the verification complete message is received from the buyer terminal 130 of the first buyer, It can contribute to improving the safety of spot asset transactions.

In this way, when the second spot asset information for the second spot asset is received in the buyer terminal 130 of the first buyer, the first buyer is the second spot asset through the buyer terminal 130 of the first buyer. The purchase quantity for the second spot asset may be input to the purchaser terminal 130 of the first buyer by designating a desired purchase quantity by viewing the information, and at this time, the purchaser terminal 130 of the first purchaser may conduct an asset transaction. A purchase request for the second spot asset corresponding to the purchase quantity according to the purchase quantity information may be transmitted to the platform server 110 along with the purchase quantity information for the second spot asset.

The purchase approval request transmission unit 116 requests a purchase for the second spot asset by the purchase quantity according to the purchase quantity information together with the purchase quantity information for the second spot asset from the buyer terminal 130 of the first buyer. When this is received, after checking the seller terminal information of the second seller from the spot asset information database 112, a purchase approval request for the second spot asset equal to the purchase quantity is sent to the seller terminal 150 of the second seller. send.

At this time, when a purchase approval request for the second spot asset is received in the seller terminal 150 of the second seller, the second seller purchases the second spot asset through the seller terminal 150 of the second seller By confirming the approval request, a purchase approval confirmation may be input to the seller terminal 150 of the second seller, and in this case, the seller terminal 150 of the second seller is the asset trading platform server 110 to the second spot asset. A purchase approval confirmation message corresponding to the purchase approval request may be transmitted.

The transaction generating unit 117 receives a purchase approval confirmation message corresponding to a purchase approval request for the second spot asset corresponding to the purchase quantity from the seller terminal 150 of the second seller, the second spot asset Create a spot asset transaction transaction including a name, the purchase quantity for the second spot asset, a unit price for the second spot asset, information of the first buyer, and information of the second seller.

Hereinafter, operations of the token transmitter 114 , the in-kind asset information provider 115 , the purchase approval request transmitter 116 , and the transaction generator 117 will be described in detail with an example.

First, when a request for provision of spot asset information on the second spot asset registered by the second seller from the buyer terminal 130 of the first buyer among the plurality of buyers is received to the asset trading platform server 110, the token transmission unit ( 114 may extract a second spot asset token corresponding to the second spot asset from the spot asset information database 112 and transmit it to the buyer terminal 130 of the first buyer.

In relation to this, when the second seller is referred to as 'seller 2' in the spot asset information database 112 as shown in Table 2, the token transfer unit 114 from the spot asset information database 112 as shown in Table 2 above. The 'spot asset token 2' corresponding to the 'spot asset 2' may be extracted and transmitted to the buyer terminal 130 of the first buyer.

At this time, when the 'spot asset token 2' is received from the asset trading platform server 110, the buyer terminal 130 of the first buyer converts the electronic signature value included in the 'spot asset token 2' to the buyer terminal of the first buyer. It can be decrypted with the public key distributed in advance in 130, and the decrypted value and the hash value for the data of the spot asset information included in the 'spot asset token 2' are compared to see if the two values match each other. If it is confirmed that it is, a verification completion message indicating that verification of the 'spot asset token 2' is completed may be generated, and then the verification completion message may be transmitted to the asset trading platform server 110 .

The spot asset information providing unit 115 receives the verification completion message indicating that the verification of the 'spot asset token 2' has been completed from the purchaser terminal 130 of the first buyer, the spot asset information database as shown in Table 2 above. 'Name: crude oil, available quantity for sale: 100 barrels, unit price: ￦200,000/barrel', which is spot asset information for 'spot asset 2', may be extracted from (112) and transmitted to the buyer terminal 130 of the first buyer. .

In this way, when the real asset information for 'spot asset 2' is received in the buyer terminal 130 of the first buyer, the first buyer can view the spot asset information and designate a desired purchase quantity, at this time, the 1 When the buyer inputs '10 barrels' as the purchase quantity for 'spot asset 2' into the buyer terminal 130, the buyer terminal 130 of the first buyer sends ' A purchase request for 'spot asset 2' in an amount corresponding to '10 barrels' and '10 barrels' may be transmitted to the asset trading platform server 110 .

The purchase approval request transmission unit 116 is the purchase quantity information for 'spot asset 2' from the buyer terminal 130 of the first buyer, '10 barrels' and 'spot asset 2' of a quantity corresponding to '10 barrels' When a purchase request for ' is received, after checking the seller terminal information of 'Seller 2' from the spot asset information database 112 as shown in Table 2 above, '10 barrels' to the seller terminal 150 of 'Seller 2' It is possible to send a purchase approval request for 'spot asset 2' in a quantity corresponding to .

At this time, when a purchase approval request for 'spot asset 2' is received at the seller terminal 150 of 'Seller 2', 'Seller 2' is transferred to 'Spot asset 2' through the seller terminal 150 of 'Seller 2'. After confirming the purchase approval request for 'Seller 2', a purchase approval confirmation may be input to the seller terminal 150 of 'Seller 2', and at this time, the seller terminal 150 of 'Seller 2' is the asset trading platform server 110 to the 'spot' A purchase approval confirmation message corresponding to the purchase approval request for the asset 2' may be transmitted.

The transaction generating unit 117 receives a purchase approval confirmation message corresponding to a purchase approval request for 'spot asset 2' in an amount corresponding to '10 barrels' from the seller terminal 150 of 'Seller 2'. 'Crude oil', which is the name of 'Spot asset 2', '10 barrels' which is the purchase quantity for 'Spot asset 2', ￦200,000/barrel, which is the unit price for 'Spot asset 2', information of the first buyer and ' You can create a spot asset trading transaction containing Seller 2's information.

In this way, when the in-kind asset transaction transaction is generated by the transaction generating unit 117, the blockchain registration request unit 118 is any one of the plurality of node devices 101, 102, 103, 104 constituting the blockchain network. After selecting one first node device, while transmitting the spot asset transaction transaction to the first node device, a registration request of the spot asset transaction transaction to the blockchain network is transmitted.

At this time, according to an embodiment of the present invention, the block chain registration request unit 118 is configured to select the first node device to transmit the registration request of the in-kind asset transaction transaction to the block chain network, information transmission It may include a request unit 119 , a norm operation unit 120 , a weighted average operation unit 121 , and a node selector 122 .

When the in-kind asset transaction transaction is generated, the information transmission requesting unit 119 provides first information that is current power consumption information and second information that is current CPU usage rate information with respect to the plurality of node devices 101 , 102 , 103 , 104 . It requests transmission of information and third information that is current network traffic numerical information.

The gambling operation unit 120 receives the first information, the second information, and the third information from each of the plurality of node devices 101, 102, 103, and 104, the plurality of node devices 101, 102, 103 and 104), after generating a three-dimensional feature vector having the first information, the second information, and the third information as components, a Manhattan norm for the three-dimensional feature vector and Euclidean norms are calculated respectively.

Here, the Manhattan norm and the Euclidean norm are generalized sizes of vectors existing in the Euclidean space, and may be calculated according to the following Equations 1 and 2, respectively.

는 맨해튼 노름,

는 유클리드 노름을 의미하고,

는 n차원의 특성 벡터에 포함되어 있는 i번째 성분을 의미한다.In Equation 1 and Equation 2 above

is the manhattan gambling,

means Euclidean norm,

denotes the i-th component included in the n-dimensional feature vector.

The weighted average calculation unit 121 calculates a first weighted calculation value by multiplying the Manhattan norm with respect to the three-dimensional feature vector by a predetermined first weight for each of the plurality of node devices 101 , 102 , 103 , and 104 . a plurality of node devices by multiplying the Euclidean norm for the three-dimensional feature vector by a predetermined second weight to calculate a second weighting operation value and then adding the first weighting operation value and the second weighting operation value A weighted average value for each of the ones 101, 102, 103, and 104 is calculated.

Here, the sum of the first weight and the second weight may be 1.

The node selector 122 selects, as the first node device, a node device having the smallest weighted average value calculated from among the plurality of node devices 101 , 102 , 103 , and 104 .

In general, since many calculation processes are required to generate a block, faster calculation may be possible as the block generation process is processed in a node device with abundant system available resources. At this time, since the weighted average value is the weighted average value of the Manhattan norm and the Euclidean norm calculated based on the current power consumption, the current CPU usage rate, and the current network traffic value of the node device, if the weighted average value of the specific node device is low, It can be seen that the current power consumption of the node device, the current CPU usage rate, and the current network traffic figure are low. Therefore, among the plurality of node devices 101, 102, 103, and 104, the node device for which the weighted average value is calculated as the minimum is highly likely to be in an idle state, so it can be considered as the node device with the maximum available system resources. . Accordingly, the node selection unit 122 selects the node device having the smallest weighted average value calculated as the first node device for block generation, thereby enabling the block generation for the spot asset transaction transaction to be performed quickly. .

At this time, according to an embodiment of the present invention, after the first node device is selected, the blockchain registration request unit 118 requests the first node device to register with the blockchain network for the in-kind asset transaction transaction. As a configuration for authenticating the first node device in the process of transmitting It may further include a value requesting unit 127 , a node authentication performing unit 128 , and a transaction transmitting unit 129 .

Hereinafter, it is assumed that the first node device is a node device denoted by reference numeral 101 for convenience of description.

The OTP storage unit 123 stores a predetermined first OTP (One Time Password) generation function and a predetermined second OTP generation function that are pre-shared with the plurality of node devices 101 , 102 , 103 , and 104 . .

Here, OTP means a one-time authentication number that is randomly generated instead of a fixed password, and the first OTP generating function and the second OTP generating function are functions that can be predetermined by a developer.

In the authentication number storage unit 124, a predetermined first authentication number m (m is a natural number equal to or greater than 2) and a predetermined second authentication number m shared with the plurality of node devices 101, 102, 103, and 104 in advance A number k (where k is a natural number greater than or equal to 2 different from m) is stored.

When the first node device 101 is selected from among the plurality of node devices 101, 102, 103, and 104, the calculation value calculator 125 generates a first one-time authentication number based on the first OTP generation function. Then, by performing a modulo operation in which the first one-time authentication number is a dividend and the first authentication number m is a divisor, a first operation value x is calculated, and based on the second OTP generation function After generating a second one-time authentication number with , a second operation value y is calculated by performing a modulo operation in which the second one-time authentication number is a dividend and the second authentication number k is a divisor.

Here, the modulo operation refers to an operation of dividing a dividend by a divisor to calculate a remainder thereof.

The random value generator 126 generates an m x k random matrix composed of random component values and randomly generates a first random value.

The feedback value requesting unit 127 generates an mxk permutation matrix by substituting the first random value for a component positioned at '(x+1) row (y+1) column' in the random matrix, and the permutation While transmitting the matrix to the first node device 101 , it requests transmission of a feedback value corresponding to the permutation matrix to the first node device 101 .

For example, '12345' is generated as the first one-time authentication number, '23456' is generated as the second one-time authentication number, the predetermined first authentication number m is '4', and the predetermined second authentication number k is In the case of '3', the calculation value calculation unit 125 performs a modulo operation in which '12345', which is the first one-time authentication number, is a dividend, and the first authentication number '4' is a divisor, 1 operation value '1' can be calculated, and by performing a modulo operation in which '23456', which is the second one-time authentication number, is a dividend, and the second authentication number '3' is a divisor, the second operation value '2' can be calculated.

'을 생성할 수 있고, 제1 랜덤 값인 'A'를 랜덤하게 생성할 수 있다.Then, the random value generator 126 ' is a random matrix of '4' x '3' composed of random component values.

' may be generated, and a first random value of 'A' may be randomly generated.

'을 생성할 수 있고, 상기 치환 행렬을 제1 노드 장치(101)로 전송하면서, 제1 노드 장치(101)로 상기 치환 행렬에 대응되는 피드백 값의 전송을 요청할 수 있다.After that, the feedback value requesting unit 127 determines the component located in '2nd row and 3rd column', which is '('1'+1) row ('2'+1) column'' in the random matrix, as the first random value. By substituting with 'A', ' which is a permutation matrix of '4' x '3'

', and while transmitting the permutation matrix to the first node apparatus 101 , it is possible to request transmission of a feedback value corresponding to the permutation matrix to the first node apparatus 101 .

At this time, according to an embodiment of the present invention, the first node device 101 stores the first OTP generating function, the second OTP generating function, and the first number for authentication in the memory of the first node device 101 . m and the second number k for authentication may be pre-stored, and when the permutation matrix is received from the asset trading platform server 110 , the first OTP stored in the memory of the first node device 101 . After generating the first one-time authentication number based on a generation function, by performing a modulo operation in which the first one-time authentication number is a dividend and the first authentication number m is a divisor, the first operation value x is obtained Calculating, generating the second one-time authentication number based on the second OTP generation function, and performing a modulo operation in which the second one-time authentication number is a dividend and the second authentication number k is a divisor, The second calculated value y may be calculated.

Thereafter, the first node device 101 determines the component values located in the '(x+1) row (y+1) column' in the substitution matrix based on the first calculated value x and the second calculated value y. After extracting the first feedback value, the first feedback value may be transmitted to the asset trading platform server 110 .

'이 수신되는 경우, 제1 노드 장치(101)의 메모리 상에 저장되어 있는 상기 제1 OTP 생성 함수를 기초로 상기 제1 일회용 인증 번호인 '12345'를 생성할 수 있고, 상기 제1 일회용 인증 번호인 '12345'를 피제수로, 상기 제1 인증용 숫자 '4'를 제수로 하는 모듈로 연산을 수행함으로써, 상기 제1 연산 값 '1'을 산출할 수 있다. For example, according to the above-described example, the first node device 101 stores the first OTP generating function, the second OTP generating function, and the first authentication number '4' in the memory of the first node device 101 . and the number '3' for the second authentication may be pre-stored, and the substitution matrix 'from the asset trading platform server 110'

When ' is received, based on the first OTP generation function stored in the memory of the first node device 101, '12345', which is the first one-time authentication number, may be generated, and the first one-time authentication By performing a modulo operation in which the number '12345' is a dividend and the first authentication number '4' is a divisor, the first operation value '1' may be calculated.

In addition, the first node device 101 may generate '23456', which is the second one-time authentication number, based on the second OTP generation function, and use '23456', which is the second one-time authentication number, as an dividend as the dividend, the By performing a modulo operation of dividing the second authentication number '3' as a divisor, the second operation value '2' may be calculated.

After that, the first node device 101 performs the '('1'+1) row ('2'+1) in the substitution matrix based on the first calculated value '1' and the second calculated value '2'. ) column, 'A', a component value located in '2nd row, 3rd column', may be extracted as the first feedback value, and then 'A', the first feedback value, may be transmitted to the asset trading platform server 110 .

When a first feedback value is received from the first node device 101 as a feedback value corresponding to the permutation matrix, the node authentication performing unit 128 checks whether the first feedback value is the same as the first random value, Authentication is performed on the first node device 101 .

When the authentication of the first node device 101 is completed, the transaction transmitting unit 129 transmits the spot asset transaction transaction to the first node device 101, and transfers the spot asset transaction transaction to the block chain network. Send a registration request.

'에 대응되는 상기 제1 피드백 값으로 'A'가 수신되는 경우, 상기 제1 피드백 값인 'A'가 상기 제1 랜덤 값인 'A'와 동일한지 확인함으로써, 제1 노드 장치(101)에 대한 인증을 수행할 수 있고, 이렇게, 제1 노드 장치(101)에 대한 인증이 완료되는 경우, 트랜잭션 전송부(129)는 제1 노드 장치(101)로 상기 현물 자산 거래 트랜잭션을 전송하면서, 상기 현물 자산 거래 트랜잭션의 상기 블록체인 네트워크로의 등록 요청을 전송할 수 있다.For example, according to the above-described example, the node authentication performing unit 128 receives the permutation matrix ' from the first node device 101 .

When 'A' is received as the first feedback value corresponding to Authentication can be performed, and when authentication for the first node device 101 is completed in this way, the transaction transmitting unit 129 transmits the in-kind asset transaction transaction to the first node device 101, It may send a registration request to the blockchain network of an asset transaction transaction.

At this time, according to an embodiment of the present invention, when the in-kind asset transaction transaction is received from the asset trading platform server 110 , the first node device 101 is stored in the memory of the first node device 101 . After generating a block including the in-kind asset transaction transaction based on block chain data, and linking the block to the block chain data in a chain, the block is connected to a plurality of node devices 101 through the block chain network. It is possible to propagate to the remaining node devices 102 , 103 , 104 except for the first node device 101 among 102 , 103 , and 104 .

At this time, according to an embodiment of the present invention, when the block is received through the block chain network, the remaining node devices (102, 103, 104) are on the memory of each of the remaining node devices (102, 103, 104). It can be stored by connecting the block to the block chain data stored in the .

Through this, the name of the second spot asset, the purchase quantity for the second spot asset, the unit price for the second spot asset, the first buyer information, and the second seller information are included. The asset transaction transaction is chained to the block chain data stored in the memory of each of the plurality of node devices (101, 102, 103, 104) to each of the plurality of node devices (101, 102, 103, 104) It can be distributed and stored.

2 is a flowchart illustrating a method of operating a blockchain-based asset trading platform server that enables in-kind asset transactions through tokenization of assets according to an embodiment of the present invention.

In step S210, a predetermined private key for electronic signature (the private key and the public key constituting the key pair are pre-distributed to the purchaser terminals of a plurality of purchasers who are registered as purchaser members) are stored in the private key storage keep wealth

In step S220, seller terminal information of a plurality of sellers who are registered as seller members, and spot asset information on real assets registered by each of the plurality of sellers (in the spot asset information, the name of each spot asset, available quantity for sale) and information on unit price) and a spot asset token corresponding to each spot asset (the spot asset token includes a hash value generated by applying data of spot asset information for each spot asset as an input to a preset hash function and an electronic signature value generated by encrypting the hash value with the private key) is stored in a database of in-kind asset information.

In step S230, when the first spot asset information on the first spot asset is received from the seller terminal of the first seller among the plurality of sellers, and a real asset registration request for the first spot asset is received, the first 1 Applying the data of the in-kind asset information to the hash function as an input to generate a first hash value, encrypting the first hash value with the private key to generate a first electronic signature value, the first hash value and the After generating a first spot asset token including a first electronic signature value, the first spot asset information and the first spot asset token are stored in the spot asset information database in correspondence with the seller terminal information of the first seller .

In step S240, when a request for provision of spot asset information on a second spot asset registered by a second seller among the plurality of sellers is received from a buyer terminal of a first buyer among the plurality of buyers, the spot asset information database Extracts a second spot asset token corresponding to the second spot asset from the first buyer and transmits it to the buyer terminal of the first buyer.

In step S250, a verification completion message indicating that the verification of the second spot asset token is completed from the buyer terminal of the first buyer (the verification completion message is the second spot asset token to the buyer terminal of the first buyer) After this is received, the value obtained by decrypting the electronic signature value included in the second spot asset token by the buyer terminal of the first buyer with the public key previously distributed to the buyer terminal of the first buyer and the second spot When it is confirmed that the hash values of the data of the spot asset information included in the asset token match each other, when it is confirmed that the values match each other, it is generated to indicate that the verification of the second spot asset token is completed. means one message), extracts second spot asset information, which is spot asset information on the second spot asset, from the spot asset information database, and transmits the extracted second spot asset information to the buyer terminal of the first buyer.

In step S260, when a purchase request for the second spot asset equal to the purchase quantity according to the purchase quantity information is received together with the purchase quantity information for the second spot asset from the buyer terminal of the first buyer, the spot After checking the seller terminal information of the second seller from the asset information database, a purchase approval request for the second spot asset equal to the purchase quantity is transmitted to the seller terminal of the second seller.

In step S270, when a purchase approval confirmation message corresponding to a purchase approval request for the second spot asset equal to the purchase quantity is received from the seller terminal of the second seller, the name of the second spot asset, the second 2 Create a spot asset transaction transaction including the purchase quantity for the spot asset, the unit price for the second spot asset, information of the first buyer, and information of the second seller.

In step S280, after selecting a first node device, which is one of a plurality of node devices constituting the block chain network, and transmitting the spot asset transaction transaction to the first node device, the block of the spot asset transaction transaction Sends a registration request to the chain network.

At this time, according to an embodiment of the present invention, when the in-kind asset transaction transaction is received from the asset trading platform server, the first node device is based on the block chain data stored in the memory of the first node device. After generating a block including the spot asset transaction transaction, and linking the block to the block chain data, the block is connected to the block through the block chain network except for the first node device among the plurality of node devices It can propagate to the rest of the node devices.

At this time, according to an embodiment of the present invention, when the block is received through the block chain network, the remaining node devices add the block to the block chain data stored in the memory of each of the remaining node devices. They can be chained and stored.

In addition, according to an embodiment of the present invention, when the in-kind asset transaction transaction is generated in step S280, for the plurality of node devices, the first information that is current power consumption information and the first information that is current CPU usage rate information requesting transmission of second information and third information that is current network traffic numerical information; when the first information, the second information, and the third information are received from each of the plurality of node devices, the plurality of node devices generating a three-dimensional feature vector having the first information, the second information, and the third information as components for each , for each of the plurality of node devices, multiplying the Manhattan norm for the three-dimensional feature vector by a predetermined first weight to calculate a first weighted computation value, and to the Euclidean norm for the three-dimensional feature vector in advance calculating a weighted average value for each of the plurality of node devices by multiplying a predetermined second weight to calculate a second weighted calculation value and then summing the first weighted calculation value and the second weighted calculation value; and The method may include selecting, as the first node device, a node device having the smallest weighted average value calculated from among a plurality of node devices.

In addition, according to an embodiment of the present invention, in step S280, an OTP storage unit in which a predetermined first OTP generation function and a predetermined second OTP generation function that are previously shared with the plurality of node devices are stored is maintained. maintaining a number storage unit for authentication in which a predetermined first authentication number m and a predetermined second authentication number k shared in advance with the plurality of node devices are stored, the plurality of node devices When the first node device is selected, a module for generating a first one-time authentication number based on the first OTP generation function, then dividing the first one-time authentication number as a dividend and dividing the first authentication number m as a divisor By performing an operation with , a first operation value x is calculated, a second one-time authentication number is generated based on the second OTP generation function, and then the second one-time authentication number is a dividend, and the second authentication number k Calculating a second calculated value y by performing a modulo operation with a divisor of By substituting a component located in '(x+1) row (y+1) column' with the first random value, an mxk permutation matrix is generated, and the permutation matrix is transmitted to the first node device. requesting transmission of a feedback value corresponding to the permutation matrix to a first node device; a first feedback value from the first node device to a feedback value corresponding to the permutation matrix - the first feedback value is the first node Based on the first OTP generating function, the second OTP generating function, the first authentication number m and the second authentication number k, which are pre-stored in the memory of the first node device in the device, the first After the operation value x and the second operation value y are calculated, the component value located in the '(x+1) row (y+1) column' in the substitution matrix is extracted and is a feedback value generated - when received, the first feedback value Performing authentication for the first node device by checking whether this is the same as the first random value, and when the authentication for the first node device is completed, sending the in-kind asset transaction transaction to the first node device while sending a registration request of the spot asset transaction transaction to the blockchain network.

At this time, according to an embodiment of the present invention, the first node device has the first OTP generating function, the second OTP generating function, the first authentication number m, and the second in the memory of the first node device. 2 The number k for authentication is pre-stored, and when the permutation matrix is received from the asset trading platform server, the first one-time use function is based on the first OTP generation function stored in the memory of the first node device. After generating an authentication number, by performing a modulo operation in which the first one-time authentication number is a dividend and the first authentication number m is a divisor, the first operation value x is calculated, and the second OTP generation function After generating the second one-time authentication number based on , after extracting, as the first feedback value, a component value located in '(x+1) row (y+1) column' in the substitution matrix based on the first operation value x and the second operation value y The first feedback value may be transmitted to the asset trading platform server.

As described above, with reference to FIG. 2 , an operation method of a blockchain-based asset trading platform server that enables in-kind asset transactions through tokenization of assets according to an embodiment of the present invention has been described. Here, the method of operation of the blockchain-based asset trading platform server that enables the asset transaction through tokenization of the asset according to an embodiment of the present invention is the asset transaction through the tokenization of the asset described with reference to FIG. 1 . Since it may correspond to the configuration of the operation of the blockchain-based asset trading platform server 110 that enables , a more detailed description thereof will be omitted.

According to an embodiment of the present invention, a method of operating a blockchain-based asset trading platform server that enables in-kind asset transactions through tokenization of assets is implemented as a computer program stored in a storage medium for execution through combination with a computer. can be

In addition, the operating method of the blockchain-based asset trading platform server that enables in-kind asset transactions through tokenization of assets according to an embodiment of the present invention is implemented in the form of computer program instructions for execution through combination with a computer. and may be recorded on a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like.

As described above, the present invention has been described with specific matters such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims to be described later, but also all those with equivalent or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

110: A blockchain-based asset trading platform server that enables spot asset trading through tokenization of assets
111: private key storage 112: in-kind asset information database
113: spot asset information storage unit 114: token transmission unit
115: in-kind asset information provision unit 116: purchase approval request transmission unit
117: transaction creation unit 118: block chain registration request unit
119: information transmission request unit 120: gambling operation unit
121: weighted average operation unit 122: node selection unit
123: OTP storage 124: number storage for authentication
125: calculation value calculation unit 126: random value generation unit
127: feedback value request unit 128: node authentication performing unit
129: transaction transfer unit
130: buyer terminal of the first buyer
140: Seller's terminal of the first seller
150: Seller's terminal of the second seller
101, 102, 103, 104: a plurality of node devices

Claims (12)

In a blockchain-based asset trading platform server that enables spot asset trading through tokenization of assets,
a private key storage unit storing a predetermined private key for electronic signature, wherein the private key and the public key constituting the key pair are pre-distributed to the purchaser terminals of a plurality of purchasers registered as purchaser members;
Seller terminal information of a plurality of sellers who are registered as seller members, spot asset information about the spot assets registered by each of the plurality of sellers - The spot asset information includes information on the name of each spot asset, available quantity for sale and unit price includes - and a spot asset token corresponding to each spot asset - The spot asset token includes a hash value generated by applying data of spot asset information for each spot asset as an input to a preset hash function, and the hash value an electronic signature value generated by encryption with the private key is included - a database of stored asset information in kind;
When the first spot asset information for the first spot asset is received from the seller terminal of the first seller among the plurality of sellers, and a spot asset registration request for the first spot asset is received, the first spot asset information applying data to the hash function as an input to generate a first hash value, encrypting the first hash value with the private key to generate a first digital signature value, the first hash value and the first digital signature value After generating the included first spot asset token, the spot asset information storage unit for storing the first spot asset information and the first spot asset token to correspond to the seller terminal information of the first seller in the spot asset information database ;
When a request for provision of spot asset information on a second spot asset registered by a second seller among the plurality of sellers is received from a buyer terminal of a first buyer among the plurality of buyers, the second spot from the spot asset information database a token transmitter for extracting a second spot asset token corresponding to the asset and transmitting it to the buyer terminal of the first buyer;
Verification complete message indicating that verification of the second spot asset token is completed from the buyer terminal of the first buyer - The verification complete message is after the second spot asset token is received by the buyer terminal of the first buyer, The value obtained by decrypting the electronic signature value included in the second spot asset token by the buyer terminal of the first buyer with the public key pre-distributed to the buyer terminal of the first buyer and the second spot asset token As a result of comparing the hash values of the data of the present spot asset information to see if they match each other, when it is confirmed that both values match each other, it means a message generated to indicate that the verification of the second spot asset token has been completed. - when received, the spot asset information providing unit for extracting the second spot asset information that is the spot asset information for the second spot asset from the spot asset information database and transmitting it to the buyer terminal of the first buyer;
When a purchase request for the second spot asset equal to the purchase quantity according to the purchase quantity information is received from the buyer terminal of the first buyer along with the purchase quantity information for the second spot asset, from the spot asset information database a purchase approval request transmission unit for confirming the seller terminal information of the second seller, and transmitting a purchase authorization request for the second spot asset as much as the purchase quantity to the seller terminal of the second seller;
When a purchase approval confirmation message is received from the seller terminal of the second seller corresponding to the purchase approval request for the second spot asset equal to the purchase quantity, the name of the second spot asset, the second spot asset a transaction generator for generating a spot asset transaction transaction including the purchase quantity, the unit price of the second spot asset, information of the first buyer, and information of the second seller; and
After selecting a first node device, which is one of a plurality of node devices constituting a blockchain network, and transmitting the spot asset transaction transaction to the first node device, registration of the spot asset transaction transaction into the blockchain network The blockchain registration request unit that sends the request
including,
The first node device
When the spot asset transaction transaction is received from the asset trading platform server, a block including the spot asset transaction transaction is generated based on the block chain data stored in the memory of the first node device, and the block is converted into the block After connecting the chain data to the chain, the in-kind asset transaction is possible through the tokenization of the asset, which propagates the block to the remaining node devices except for the first node device among the plurality of node devices through the blockchain network. Blockchain-based asset trading platform server. According to claim 1,
The remaining node devices are
When the block is received through the block chain network, the in-kind asset transaction is possible through the tokenization of the asset that is stored by connecting the block to the block chain data stored in the memory of each of the remaining node devices. Blockchain-based asset trading platform server. According to claim 1,
The blockchain registration request unit
When the in-kind asset transaction transaction is generated, requesting the plurality of node devices to transmit first information that is current power consumption information, second information that is current CPU usage rate information, and third information that is current network traffic numerical information information transmission request unit;
When the first information, the second information, and the third information are received from each of the plurality of node devices, the first information, the second information, and the third information for each of the plurality of node devices a norm operator for generating a three-dimensional feature vector having as a component and then calculating a Manhattan norm and a Euclidean norm for the three-dimensional feature vector;
For each of the plurality of node devices, a first weight calculation value is calculated by multiplying the Manhattan norm for the three-dimensional feature vector by a predetermined first weight, and a predetermined value is determined in the Euclidean norm for the three-dimensional feature vector. a weighted average operation unit for calculating a weighted average value for each of the plurality of node devices by multiplying a second weight to calculate a second weighted operation value and then summing the first weighted operation value and the second weighted operation value; and
A node selection unit that selects a node device having the smallest weighted average value calculated from among the plurality of node devices as the first node device
A blockchain-based asset trading platform server that enables spot asset trading through tokenization of assets, including According to claim 1,
The blockchain registration request unit
an OTP storage unit in which a predetermined first OTP (One Time Password) generation function and a predetermined second OTP generation function shared in advance with the plurality of node devices are stored;
A predetermined first authentication number m (m is a natural number greater than or equal to 2) and a predetermined second authentication number k (k is a natural number greater than or equal to 2 different from m) shared with the plurality of node devices in advance are stored. a number storage unit for authentication;
When the first node device is selected from among the plurality of node devices, a first one-time authentication number is generated based on the first OTP generation function, and the first one-time authentication number is the dividend number, and the first authentication number By performing a modulo operation in which m is a divisor, a first operation value x is calculated, a second one-time authentication number is generated based on the second OTP generation function, and then the second one-time authentication number is a dividend a calculation value calculation unit for calculating a second calculation value y by performing a modulo calculation of the second authentication number k as a divisor;
a random value generator generating an mxk random matrix composed of random component values and randomly generating a first random value;
By substituting the first random value for a component located in '(x+1) row (y+1) column' in the random matrix, an mxk permutation matrix is generated, and the permutation matrix is transferred to the first node device. a feedback value requesting unit for requesting transmission of a feedback value corresponding to the permutation matrix to the first node device while transmitting;
a first feedback value from the first node device to a feedback value corresponding to the permutation matrix - the first feedback value is generated in the first node device in advance in a memory of the first node device After the first operation value x and the second operation value y are calculated based on a function, the second OTP generation function, the first authentication number m, and the second authentication number k, '( When x+1) is a feedback value generated by extracting a component value located in row (y+1) column ', by checking whether the first feedback value is the same as the first random value, the first node a node authentication performing unit that authenticates the device; and
When authentication for the first node device is completed, a transaction transmission unit that transmits a registration request of the spot asset transaction transaction to the blockchain network while transmitting the spot asset transaction transaction to the first node device
A blockchain-based asset trading platform server that enables spot asset trading through tokenization of assets that further include 5. The method of claim 4,
The first node device
The first OTP generating function, the second OTP generating function, the first authentication number m and the second authentication number k are pre-stored in the memory of the first node device,
When the permutation matrix is received from the asset trading platform server, the first one-time authentication number is generated after generating the first one-time authentication number based on the first OTP generation function stored in the memory of the first node device. By performing a modulo operation in which is a dividend and the first authentication number m is a divisor, the first operation value x is calculated, and the second one-time authentication number is generated based on the second OTP generation function. Then, by performing a modulo operation in which the second one-time authentication number is a dividend and the second authentication number k is a divisor, the second operation value y is calculated, and the first operation value x and the second operation value are calculated. Based on the value y, the component value located in the '(x+1) row (y+1) column' in the substitution matrix is extracted as the first feedback value, and then the first feedback value is transmitted to the asset trading platform server A blockchain-based asset trading platform server that enables spot asset trading through tokenization of assets. A method of operating a blockchain-based asset trading platform server that enables spot asset transactions through tokenization of assets, the method comprising:
maintaining a private key storage unit in which a predetermined private key for electronic signature is stored, wherein the private key and the public key constituting the key pair are pre-distributed to purchaser terminals of a plurality of purchasers registered as purchaser members;
Seller terminal information of a plurality of sellers who are registered as seller members, spot asset information about the spot assets registered by each of the plurality of sellers - The spot asset information includes information on the name of each spot asset, available quantity for sale and unit price includes - and a spot asset token corresponding to each spot asset - The spot asset token includes a hash value generated by applying data of spot asset information for each spot asset as an input to a preset hash function, and the hash value the digital signature value generated by encryption with the private key is included - maintaining the stored in-kind asset information database;
When the first spot asset information for the first spot asset is received from the seller terminal of the first seller among the plurality of sellers, and a spot asset registration request for the first spot asset is received, the first spot asset information applying data to the hash function as an input to generate a first hash value, encrypting the first hash value with the private key to generate a first digital signature value, the first hash value and the first digital signature value After generating the included first spot asset token, storing the first spot asset information and the first spot asset token in the spot asset information database in correspondence with the seller terminal information of the first seller;
When a request for provision of spot asset information on a second spot asset registered by a second seller among the plurality of sellers is received from a buyer terminal of a first buyer among the plurality of buyers, the second spot from the spot asset information database extracting a second spot asset token corresponding to the asset and transmitting it to the buyer terminal of the first buyer;
Verification complete message indicating that verification of the second spot asset token is completed from the buyer terminal of the first buyer - The verification complete message is after the second spot asset token is received by the buyer terminal of the first buyer, The value obtained by decrypting the electronic signature value included in the second spot asset token by the buyer terminal of the first buyer with the public key pre-distributed to the buyer terminal of the first buyer and the second spot asset token As a result of comparing the hash values of the data of the present spot asset information to see if they match each other, when it is confirmed that both values match each other, it means a message generated to indicate that the verification of the second spot asset token has been completed. - is received, extracting second spot asset information that is spot asset information for the second spot asset from the spot asset information database and transmitting the second spot asset information to the buyer terminal of the first buyer;
When a purchase request for the second spot asset equal to the purchase quantity according to the purchase quantity information is received from the buyer terminal of the first buyer along with the purchase quantity information for the second spot asset, from the spot asset information database after confirming the seller terminal information of the second seller, transmitting a purchase approval request for the second spot asset equal to the purchase quantity to the seller terminal of the second seller;
When a purchase approval confirmation message is received from the seller terminal of the second seller corresponding to the purchase approval request for the second spot asset equal to the purchase quantity, the name of the second spot asset, the second spot asset generating a spot asset transaction transaction including the purchase quantity, the unit price for the second spot asset, information of the first buyer, and information of the second seller; and
After selecting a first node device, which is one of a plurality of node devices constituting a blockchain network, and transmitting the spot asset transaction transaction to the first node device, registration of the spot asset transaction transaction into the blockchain network Steps to send a request
including,
The first node device
When the spot asset transaction transaction is received from the asset trading platform server, a block including the spot asset transaction transaction is generated based on the block chain data stored in the memory of the first node device, and the block is converted into the block After connecting the chain data to the chain, the in-kind asset transaction is possible through the tokenization of the asset, which propagates the block to the remaining node devices except for the first node device among the plurality of node devices through the blockchain network. How the blockchain-based asset trading platform server works. 7. The method of claim 6,
The remaining node devices are
When the block is received through the block chain network, the in-kind asset transaction is possible through the tokenization of the asset that is stored by connecting the block to the block chain data stored in the memory of each of the remaining node devices. How the blockchain-based asset trading platform server works. 7. The method of claim 6,
The step of sending a registration request to the blockchain network is
When the in-kind asset transaction transaction is generated, requesting the plurality of node devices to transmit first information that is current power consumption information, second information that is current CPU usage rate information, and third information that is current network traffic numerical information step;
When the first information, the second information, and the third information are received from each of the plurality of node devices, the first information, the second information, and the third information for each of the plurality of node devices generating a three-dimensional feature vector having as a component and then calculating a Manhattan norm and a Euclidean norm for the three-dimensional feature vector;
For each of the plurality of node devices, a first weight calculation value is calculated by multiplying the Manhattan norm for the three-dimensional feature vector by a predetermined first weight, and a predetermined value is determined in the Euclidean norm for the three-dimensional feature vector. calculating a weighted average value for each of the plurality of node devices by multiplying a second weight to calculate a second weighted calculation value and then summing the first weighted calculation value and the second weighted calculation value; and
selecting, as the first node device, a node device having the smallest weighted average value calculated from among the plurality of node devices;
A method of operating a blockchain-based asset trading platform server that enables spot asset transactions through tokenization of assets, including 7. The method of claim 6,
The step of sending a registration request to the blockchain network is
maintaining an OTP storage unit in which a predetermined first OTP (One Time Password) generation function and a predetermined second OTP generation function shared in advance with the plurality of node devices are stored;
A predetermined first authentication number m (m is a natural number greater than or equal to 2) and a predetermined second authentication number k (k is a natural number greater than or equal to 2 different from m) shared with the plurality of node devices in advance are stored. maintaining a numeric storage unit for authentication;
When the first node device is selected from among the plurality of node devices, a first one-time authentication number is generated based on the first OTP generation function, and the first one-time authentication number is the dividend number, and the first authentication number By performing a modulo operation in which m is a divisor, a first operation value x is calculated, a second one-time authentication number is generated based on the second OTP generation function, and then the second one-time authentication number is a dividend , calculating a second operation value y by performing a modulo operation of dividing the second authentication number k as a divisor;
generating an mxk random matrix composed of random component values, and randomly generating a first random value;
By substituting the first random value for a component located in '(x+1) row (y+1) column' in the random matrix, an mxk permutation matrix is generated, and the permutation matrix is transferred to the first node device. requesting transmission of a feedback value corresponding to the permutation matrix to the first node device while transmitting;
a first feedback value from the first node device to a feedback value corresponding to the permutation matrix - the first feedback value is generated in the first node device in advance in a memory of the first node device After the first operation value x and the second operation value y are calculated based on a function, the second OTP generation function, the first authentication number m, and the second authentication number k, '( When x+1) is a feedback value generated by extracting a component value located in row (y+1) column ', by checking whether the first feedback value is the same as the first random value, the first node performing authentication on the device; and
When the authentication for the first node device is completed, sending a registration request of the spot asset transaction transaction to the blockchain network while transmitting the spot asset transaction transaction to the first node device
A method of operating a blockchain-based asset trading platform server that enables spot asset trading through tokenization of assets further comprising a. 10. The method of claim 9,
The first node device
The first OTP generating function, the second OTP generating function, the first authentication number m and the second authentication number k are pre-stored in the memory of the first node device,
When the permutation matrix is received from the asset trading platform server, the first one-time authentication number is generated after generating the first one-time authentication number based on the first OTP generation function stored in the memory of the first node device. By performing a modulo operation in which is a dividend and the first authentication number m is a divisor, the first operation value x is calculated, and the second one-time authentication number is generated based on the second OTP generation function. Then, by performing a modulo operation in which the second one-time authentication number is a dividend and the second authentication number k is a divisor, the second operation value y is calculated, and the first operation value x and the second operation value are calculated. Based on the value y, the component value located in the '(x+1) row (y+1) column' in the substitution matrix is extracted as the first feedback value, and then the first feedback value is transmitted to the asset trading platform server A method of operating a blockchain-based asset trading platform server that enables spot asset transactions through tokenization of assets. A computer-readable recording medium recording a computer program for executing the method of any one of claims 6 to 10 through combination with a computer. A computer program stored in a storage medium for executing the method of any one of claims 6 to 10 through combination with a computer.

Images