KR20220021357A - Gold trading platform server that enables gold trading based on digital gold token and operating method thereof - Google Patents

Abstract

Disclosed are a gold trading platform server to enable gold trading based on digital gold token and an operating method thereof. The present invention relates to a gold trading platform server which supports a specific member who is one of a plurality of members holding gold to easily inquire asset information on gold held by other members online and to trade gold, and an operating method thereof.

Description

GOLD TRADING PLATFORM SERVER THAT ENABLES GOLD TRADING BASED ON DIGITAL GOLD TOKEN AND OPERATING METHOD THEREOF

The present invention relates to a gold trading platform server that enables gold trading based on a digital gold token and a method for operating the same.

Amid unstable economic conditions, more and more people are showing interest in gold, whose value is expected to rise steadily.

Accordingly, as the use of gold transaction information using the Internet increases, various gold trading platforms that mediate matching between members who own gold are emerging.

However, the existing gold investment and transaction management platforms are only operating at a level that provides services that simply connect members who hold gold, and do not provide services that allow even gold transaction contracts. It was difficult to see it as an actual online gold trading platform.

This is because a reliable contract storage method has not been established for members who own gold to trust each other and proceed with each other's gold transactions. It can be seen that there are not many members who want to do it.

On the other hand, recently, in order to protect important information such as personal information, digital tokenization technology that converts the information into a digital token and uses it in the data transmission process to prevent leakage of original data for important information has been widely used.

Therefore, it is necessary to study a technology that can increase the reliability and safety of gold transactions by digitalizing and managing the asset information of each member holding gold in the gold transaction service.

The present invention provides a gold trading platform server and its operation that support a specific member who is one of a plurality of members holding gold to easily inquire and transact asset information on gold held by other members online I would like to suggest a method.

In addition, the gold trading platform server and the method of operation thereof according to the present invention digitally tokenize and manage asset information on gold held by each of the plurality of members, thereby increasing the amount of gold held by each of the plurality of members. It is intended to prevent data leakage of asset information and to increase the reliability of gold transactions.

A gold transaction platform server that enables gold transaction based on a digital gold token according to an embodiment of the present invention is a preset private key for electronic signature - The private key and the public key constituting the key pair are members of a plurality of members Pre-distributed to each terminal - a private key storage unit in which is stored, member information of the plurality of members, gold held by each of the plurality of members - content of gold held by each of the plurality of members is equal to each other - Asset information about - The asset information includes information on the weight of gold held by each of the plurality of members, and information on the unit price of gold per unit weight registered in advance by each of the plurality of members. Yes - and a digital gold token corresponding to the asset information of each of the plurality of members - The digital gold token includes a hash value generated by applying data of the asset information of each of the plurality of members as an input to a preset hash function; , the hash value is encrypted with the private key and includes a generated digital signature value - a gold information database in which this is stored, a second member from a member terminal of a first member who is one of the plurality of members When a request for providing asset information on gold is received, a first digital gold token corresponding to asset information on gold held by the second member is extracted from the gold information database, and A token transmission unit for transmitting to a member terminal, a verification completion message indicating that verification of the first digital gold token is completed from the member terminal of the first member - The verification completion message is transmitted to the member terminal of the first member After the 1 digital gold token is received, the first member's member terminal decrypts the digital signature value included in the first digital gold token with the public key distributed in advance to the first member's member terminal; Whether the hash values for the asset information included in the first digital gold token match each other As a result of the comparison, when it is confirmed that both values match each other, it means a message generated to indicate that the verification of the first digital gold token is completed. When - is received, the second member from the gold information database An asset information providing unit that extracts asset information about the gold held and transmits it to the member terminal of the first member, from the member terminal of the first member to the gold held by the second member by a first weight When a request to purchase gold corresponding to When a purchase approval request transmission unit for transmitting a purchase approval request for a purchase approval request is received from the member terminal of the second member, a purchase approval confirmation message corresponding to the purchase approval request is received, the payment method information is transmitted to the member terminal of the first member When the first payment method information is received from the requesting payment method information requesting unit and the member terminal of the first member, after completing the authentication of the member terminal of the first member, the gold held by the second member An amount corresponding to the first weight is calculated based on information on the unit price of gold per unit weight of the second member included in the asset information of and a payment processing unit for completing payment processing for the .

In addition, according to an embodiment of the present invention, a method of operating a gold trading platform server that enables gold transactions based on a digital gold token according to an embodiment of the present invention includes a preset private key for electronic signature - the private key and the public key constituting the key pair Pre-distributed to each member terminal of a plurality of members - maintaining a private key storage in which is stored, member information of the plurality of members, and gold held by each of the plurality of members - the plurality of members The amount of gold each held is the same as each other - Asset information for - The asset information includes the weight of gold each of the plurality of members holds, and a preset amount of gold per unit weight registered by each of the plurality of members Information on unit price is included - and a digital gold token corresponding to asset information of each of the plurality of members - In the digital gold token, data of asset information of each of the plurality of members is input to a preset hash function Maintaining a gold information database in which a hash value generated by being authorized to and an electronic signature value generated by encrypting the hash value with the private key are stored; When a request to provide asset information on gold held by another second member is received from the member terminal of the first member, a second member corresponding to the gold asset information held by the second member is received from the gold information database. 1 extracting a digital gold token and transmitting it to the member terminal of the first member, a verification completion message indicating that verification of the first digital gold token is completed from the member terminal of the first member - the verification completion message is After the first digital gold token is received in the member terminal of the first member, the member terminal of the first member pre-stores the electronic signature value included in the first digital gold token to the member terminal of the first member. The value decrypted with the distributed public key and asset information included in the first digital gold token As a result of comparing the hash values for the data of , if it is confirmed that both values match each other, it means a message generated to indicate that the verification of the first digital gold token is completed - When , extracting asset information on gold held by the second member from the gold information database and transmitting it to the member terminal of the first member; When a request to purchase gold corresponding to the first weight for gold is received, member information of the second member is checked from the gold information database, and then the second member by the first weight is sent to the member terminal of the second member. transmitting a purchase approval request for gold held by a member; when a purchase approval confirmation message corresponding to the purchase approval request is received from the member terminal of the second member, payment method information to the member terminal of the first member and when the first payment method information is received from the member terminal of the first member, after completing the authentication of the member terminal of the first member, the second member An amount corresponding to the first weight is calculated based on information on the unit weight of gold sold per unit weight of the second member included in the asset information, and an amount corresponding to the first weight is calculated based on the first payment method information. and completing payment processing.

The present invention provides a gold trading platform server and its operation that support a specific member who is one of a plurality of members holding gold to easily inquire and transact asset information on gold held by other members online can suggest a way.

In addition, the gold trading platform server and the method of operation thereof according to the present invention digitally tokenize and manage asset information on gold held by each of the plurality of members, thereby increasing the amount of gold held by each of the plurality of members. It is possible to prevent data leakage of asset information and increase the reliability of gold transactions.

1 is a diagram showing the structure of a gold trading platform server according to an embodiment of the present invention.
2 is a flowchart illustrating a method of operating a gold trading platform server 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 as 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 computer-readable memory, the functions described in the blocks of the block diagram or the steps of the flowchart are produced as articles of manufacture containing instruction means for performing the same. it might 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 showing the structure of a gold trading platform server according to an embodiment of the present invention.

The gold trading platform server 110 according to the present invention is a device that enables a gold transaction based on a digital gold token, and includes a private key storage unit 111 , a gold information database 112 , a token transmission unit 113 , and an asset. It includes an information providing unit 114 , a purchase approval request transmitting unit 115 , a payment method information requesting unit 116 , and a payment processing unit 117 .

The private key storage unit 111 stores a preset private key for digital signature. Here, the private key and the public key constituting the key pair are pre-distributed to each member terminal of a plurality of members.

The gold information database 112 stores member information of the plurality of members, asset information on gold owned by each of the plurality of members, and digital gold tokens corresponding to asset information of each of the plurality of members. .

Here, the member information means information such as each member's name, contact information, address, or identification number of a terminal possessed by each member.

In addition, the content of gold held by each of the plurality of members is the same, and the asset information includes the weight of gold held by each of the plurality of members, and a preset unit weight registered by each of the plurality of members. Information on the unit price of gold sold is included, and the digital gold token includes a hash value generated by applying data of asset information of each of the plurality of members as an input to a preset hash function, and the hash value is the individual The digital signature value generated by encryption with the key is included.

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

Profile asset information for gold digital gold token member 1's
Profile Weight of Gold: 37.5g
Gold sales price per unit weight: 71,067 (KRW/g) Digital Gold Token 1 member 2's
Profile Weight of gold: 75.0 g
Gold sales price per unit weight: 69,398 (KRW/g) Digital Gold Token 2 ... ... ...

The token transmission unit 113 receives a request to provide asset information on gold held by the second member, the other, from the member terminal 130 of the first member, which is one of the plurality of members, the gold information. The first digital gold token corresponding to the gold asset information held by the second member is extracted from the database 112 and transmitted to the member terminal 130 of the first member.

That is, when a request for providing asset information on gold held by the second member is received from the member terminal 130 of the first member, the token transmitter 113 sends the request to the member terminal 130 of the first member. Before transmitting asset information on gold held by the second member, by first transmitting the first digital gold token corresponding to asset information on gold held by the second member, asset information on gold Security can be strengthened.

At this time, when the first digital gold token is received from the gold transaction platform server 110 , the first member's member terminal 130 transmits the electronic signature value included in the first digital gold token to the first member's member terminal. Decrypted with the public key distributed in advance in 130, and compared whether the decrypted value matches the hash value of the asset information data included in the first digital gold token to confirm that the two values match each other In this case, after generating a verification completion message indicating that verification of the first digital gold token has been completed, the verification completion message may be transmitted to the gold transaction platform server 110 .

When the verification complete message indicating that verification of the first digital gold token has been completed is received from the member terminal 130 of the first member, the asset information providing unit 114 receives the second information from the gold information database 112 . Asset information on gold held by the member is extracted and transmitted to the member terminal 130 of the first member.

That is, the asset information providing unit 114 transmits information about the gold held by the second member to the member terminal 130 of the first member only when the verification complete message is received from the member terminal 130 of the first member. By transmitting asset information, it can contribute to increasing the safety of gold transactions.

In this way, when the asset information of the gold held by the second member is received in the member terminal 130 of the first member, the first member is the second member through the member terminal 130 of the first member. You can view the asset information on the gold you hold and specify the first weight, which is the desired weight, to input the first weight for the gold held by the second member in the member terminal 130 of the first member. In this case, the member terminal 130 of the first member may transmit a gold purchase request corresponding to the first weight with respect to the gold held by the second member to the gold trading platform server 110 .

The purchase approval request transmission unit 115 receives a gold purchase request corresponding to the first weight for gold held by the second member from the member terminal 130 of the first member, the gold information database 112 ), and then transmits a purchase approval request for gold held by the second member by the first weight to the member terminal 140 of the second member.

At this time, when a purchase approval request for gold held by the second member is received in the member terminal 140 of the second member, the second member is transferred to the second member through the member terminal 140 of the second member. The purchase approval request for the held gold may be confirmed and the purchase approval confirmation may be input to the member terminal 140 of the second member, and in this case, the member terminal 140 of the second member may be transmitted to the gold trading platform server 110 . ) to transmit a purchase approval confirmation message corresponding to a purchase approval request for gold held by the second member.

When the purchase approval confirmation message corresponding to the purchase approval request is received from the member terminal 140 of the second member, the payment method information request unit 116 transmits the payment method information to the member terminal 130 of the first member. request.

Here, the payment method information is information on the payment method used for online shopping or processing payment for goods or services. may be included.

At this time, when a transmission request for payment method information is received in the member terminal 130 of the first member, the first member confirms the transmission request for payment method information through the member terminal 130 of the first member The first payment method information may be input to the member terminal 130 of the first member, and in this case, the member terminal 130 of the first member may transmit the first payment method information to the gold transaction platform server 110 . .

When the first payment method information is received from the member terminal 130 of the first member, the payment processing unit 117 completes the authentication of the member terminal 130 of the first member, and the second member holds An amount corresponding to the first weight is calculated based on information on the unit price of gold sold per unit weight of the second member included in the asset information on gold, and the calculation is based on the first payment method information Complete payment processing for the amount received.

Hereinafter, the operation of the token transmission unit 113 , the asset information providing unit 114 , the purchase approval request transmission unit 115 , the payment method information requesting unit 116 , and the payment processing unit 117 will be described in detail as an example. do it with

First, when a request for providing asset information on gold held by a second member, the other, is received from the member terminal 130 of a first member, one of the plurality of members, to the gold trading platform server 110 , The token transmission unit 113 may extract a first digital gold token corresponding to the gold asset information held by the second member from the gold information database 112 and transmit it to the member terminal 130 of the first member. there is.

In relation to this, when the first member and the second member are referred to as 'Member 1' and 'Member 2' in the gold information database 112 as shown in Table 1, the token transmission unit 113 may 'Digital gold corresponding to 'weight of gold: 75.0 g, unit price of gold per unit weight: 69,398 (KRW/g)', which is asset information on gold owned by 'member 2' from the same gold information database 112 Token 2' may be extracted and transmitted to the member terminal 130 of 'member 1'.

At this time, when the 'digital gold token 2' is received from the gold transaction platform server 110, the member terminal 130 of 'member 1' converts the electronic signature value included in the 'digital gold token 2' to that of 'member 1'. It can be decrypted with the public key distributed in advance in the member terminal 130, and the decrypted value and the hash value for the asset information data included in 'Digital Gold Token 2' are compared to see if they match each other. If it is confirmed that 'Digital Gold Token 2' is verified, a verification completion message indicating that verification is completed may be generated, and then the verification completion message may be transmitted to the gold trading platform server 110 .

When the verification complete message indicating that verification of the 'digital gold token 2' is completed is received from the member terminal 130 of the 'member 1', the asset information providing unit 114 receives the gold information database ( 112), 'Weight of gold: 75.0 g, unit price of gold per unit weight: 69,398 (KRW/g)', which is asset information on gold held by 'Member 2', is extracted from the member terminal of 'Member 1' ( 130) can be transmitted.

In this way, when asset information on gold held by 'Member 2' is received in the member terminal 130 of 'Member 1', 'Member 1' is 'Member 2' through the member terminal 130 of 'Member 1'. You can designate the first weight, which is the desired weight, by looking at the asset information of the gold held by ', and in this case, 'Member 1' is the first weight of '12.5' for the gold held by 'Member 2'. g' is inputted to the member terminal 130 of 'Member 1', the member terminal 130 of the first member applies the first weight of '12.5g' to the gold held by 'Member 2'. A corresponding gold purchase request may be transmitted to the gold trading platform server 110 .

When the purchase approval request transmission unit 115 receives a gold purchase request corresponding to the first weight of '12.5 g' with respect to the gold held by 'Member 2' from the member terminal 130 of 'Member 1', , after checking the member information of 'Member 2' from the gold information database 112 as shown in Table 1 above, 'Member 2' by the first weight of '12.5 g' to the member terminal 140 of 'Member 2' You can send a purchase approval request for the gold you hold.

At this time, when a purchase approval request for gold held by 'Member 2' is received in the member terminal 140 of 'Member 2', 'Member 2' is a 'member' through the member terminal 140 of 'Member 2'. After confirming the purchase approval request for gold held by '2', the purchase approval confirmation may be input to the member terminal 140 of 'Member 2'. In this case, the member terminal 140 of 'Member 2' performs gold transaction. A purchase approval confirmation message corresponding to a purchase approval request for gold held by 'member 2' may be transmitted to the platform server 110 .

The payment method information request unit 116 approves a purchase from the member terminal 140 of 'Member 2' in response to a purchase approval request for gold held by 'Member 2' by the first weight of '12.5 g' When the confirmation message is received, it is possible to request transmission of payment method information to the member terminal 130 of 'member 1'.

At this time, when a transmission request for payment method information is received in the member terminal 130 of 'Member 1', 'Member 1' confirms the request for transmission of payment method information through the member terminal 130 of 'Member 1' Afterwards, the first payment method information can be input to the member terminal 130 of 'Member 1', and in this case, 'Member 1' transmits information on 'credit card' as information on the first payment method to 'Member 1' When inputted to the member terminal 130 of 'member 1', the member terminal 130 of 'member 1' may transmit information on the 'credit card', which is the first payment method, to the gold transaction platform server 110 .

When the payment processing unit 117 receives information about the 'credit card', which is the first payment method, from the member terminal 130 of 'Member 1', the authentication for the member terminal 130 of 'Member 1' is completed. Then, based on the information on '69,398 (KRW/g)', which is the unit weight of gold sold by 'Member 2' included in the asset information on gold held by 'Member 2', the first weight The amount corresponding to '12.5g' can be calculated as '867,475 won', and payment processing for '867,475 won', which is the calculated amount based on the information on 'credit card', which is the first payment method, is performed. can be completed

In this case, according to an embodiment of the present invention, the gold trading platform server 110 may further include an asset information update unit 118 .

When the payment processing for the calculated amount is completed by the payment processing unit 117 , the asset information update unit 118 is configured to store the gold asset stored in the gold information database 112 by the first member. By increasing the weight of the gold held by the first member in the information by the first weight, the asset information for the gold held by the first member is updated, and the gold value for the gold held by the second member is updated. By subtracting the weight of the gold held by the second member from the asset information by the first weight, the asset information of the gold held by the second member is updated.

For example, according to the above-described example, when the payment processing for '867,475 won', which is the calculated amount, is completed by the payment processing unit 117, the asset information update unit 118 performs a gold information database ( 112) by increasing '37.5g', which is the weight of gold held by 'member 1', by '12.5g', the first weight, in the asset information on gold held by 'member 1' stored in Asset information on gold held by 'Member 1' can be updated as shown in Table 2 below.

Thereafter, the asset information update unit 118 determines the amount of gold held by 'Member 2' in the asset information on gold held by 'Member 2' stored in the gold information database 112 as shown in Table 1 above. By deducting the weight of '75.0g' by '12.5g', the first weight, asset information on gold held by 'member 2' may be updated as shown in Table 2 below.

Profile asset information for gold digital gold token member 1's
Profile Weight of gold: 50.0 g
Gold sales price per unit weight: 71,067 (KRW/g) Digital Gold Token 1 member 2's
Profile Weight of gold: 62.5 g
Gold sales price per unit weight: 69,398 (KRW/g) Digital Gold Token 2 ... ... ...

At this time, according to an embodiment of the present invention, the gold trading platform server 110 may further include a token update unit 119 .

The token update unit 119 is updated when the asset information on gold held by the first member and asset information on gold held by the second member are updated by the asset information update unit 118 , A first hash value is generated by applying data of asset information about gold held by the first member 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. After generating a second digital gold token including the first hash value and the first electronic signature value, a digital gold token corresponding to the asset information of the first member stored in the gold information database 112 is generated. Replace with the second digital gold token, apply the updated data of asset information on gold held by the second member as input to the hash function to generate a second hash value, and use the second hash value A second digital signature value is generated by encryption with the private key, and a third digital gold token including the second hash value and the second digital signature value is generated, and then the third digital gold token stored in the gold information database 112 is generated. 2 The first digital gold token corresponding to the member's asset information is replaced with the third digital gold token.

For example, according to the above-described example, the token update unit 119 performs asset information on gold held by 'member 1' and gold held by 'member 2' by the asset information update unit 118 . When the asset information is updated as shown in Table 2 above, a first hash value is generated by applying the updated asset information data on gold held by the updated 'member 1' to the hash function, and the first hash The value is encrypted with the private key to generate a first digital signature value, and after generating 'Digital Gold Token 3', which is a second digital gold token including the first hash value and the first digital signature value, Table 2 'Digital Gold Token 1', which is a digital gold token corresponding to asset information of 'Member 1' stored in the gold information database 112 such as 3 can be replaced.

Then, the token update unit 119 applies the updated data of asset information on gold held by 'Member 2' to the hash function as an input to generate a second hash value, and use the second hash value A second digital signature value is generated by encryption with the private key, and 'Digital Gold Token 4', which is a third digital gold token including the second hash value and the second digital signature value, is generated, as shown in Table 2 above. The first digital gold token 'digital gold token 2' corresponding to the asset information of 'member 2' stored in the gold information database 112 is referred to as the third digital gold token 'digital gold token 4'. It can be replaced as shown in Table 3.

Profile asset information for gold digital gold token member 1's
Profile Weight of gold: 50.0 g
Gold sales price per unit weight: 71,067 (KRW/g) Digital Gold Token 3 member 2's
Profile Weight of gold: 62.5 g
Gold sales price per unit weight: 69,398 (KRW/g) Digital Gold Token 4 ... ... ...

According to an embodiment of the present invention, when the first payment method information is received from the member terminal 130 of the first member, the payment processing unit 117 receives the first payment method information from the member terminal 130 of the first member permitted. 1 As an authentication configuration for completing payment processing for the calculated amount based on the first payment method information only when payment method information is received, the OTP storage unit 120, the number storage unit for authentication 121 , an authentication event generating unit 122 , an operation value calculating unit 123 , a random value generating unit 124 , a feedback value requesting unit 125 , a confirmation unit 126 , and an authentication completion unit 127 . .

The OTP storage unit 120 stores a preset first OTP (One Time Password) generating function and a preset second OTP generating function that are previously shared with the member terminal 130 of the first member.

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 preset by a developer.

In the authentication number storage unit 121, a preset first authentication number m (m is a natural number greater than or equal to 2) and a preset second authentication number k (k) shared with the member terminal 130 of the first member in advance is a natural number greater than or equal to 2 different from m) is stored.

When the first payment method information is received from the member terminal 130 of the first member, the authentication event generating unit 122 generates an authentication event for performing authentication of the member terminal 130 of the first member.

When the authentication event occurs, the calculation value calculation unit 123 generates a first one-time authentication number based on the first OTP generation function, and then sets the first one-time authentication number as a dividend, the first authentication number m By performing a modulo operation in which 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 converted into a dividend. , a second operation value y is calculated by performing a modulo operation of dividing the second authentication number k as 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 124 generates a random matrix having a size of m x k composed of random component values, and randomly generates a first random value.

The feedback value requesting unit 125 generates a permutation matrix having a size of mxk by substituting the first random value for a component located in (x+1) row (y+1) column in the random matrix, and the permutation While transmitting the matrix to the member terminal 130 of the first member, it requests transmission of a feedback value corresponding to the permutation matrix to the member terminal 130 of the first member.

For example, '1234567' is generated as the first one-time authentication number, '2345678' is generated as the second one-time authentication number, the preset first authentication number m is '4', and the preset second authentication number k is In the case of '3', the calculation value calculation unit 123 performs a modulo operation in which '1234567', which is the first one-time authentication number, is a dividend, and the first authentication number '4' is a divisor, 1 operation value '3' can be calculated, and by performing a modulo operation in which '2345678', 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 124 is a random matrix having a size of 4 x 3 composed of random component values '

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

'를 생성할 수 있고, 상기 치환 행렬을 제1 회원의 회원 단말(130)로 전송하면서, 제1 회원의 회원 단말(130)로 상기 치환 행렬에 대응되는 피드백 값의 전송을 요청할 수 있다.After that, the feedback value requesting unit 125 replaces the component located in '4 rows and 3 columns' that is (3+1) rows (2+1) columns in the random matrix with 'A', which is the first random value, ', which is a permutation matrix of size 4 x 3

', and while transmitting the permutation matrix to the member terminal 130 of the first member, it is possible to request transmission of a feedback value corresponding to the permutation matrix to the member terminal 130 of the first member.

At this time, according to an embodiment of the present invention, the first member's member terminal 130 stores the first OTP generation function, the second OTP generation function, and the second OTP generation function in the memory of the member terminal 130 of the first member. The first number m for authentication and the second number k for authentication are pre-stored, and when the substitution matrix is received from the gold trading platform server 110, it is stored in the memory of the member terminal 130 of the first member. After generating the first one-time authentication number based on the first OTP 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 Calculate the operation value x, generate the second one-time authentication number based on the second OTP generation function stored in the memory of the member terminal 130 of the first member, and then divide the second one-time authentication number , the second operation value y may be calculated by performing a modulo operation of dividing the second authentication number k as a divisor.

Thereafter, the member terminal 130 of the first member calculates the component value 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 1 feedback value, the first feedback value may be transmitted to the gold trading platform server 110 .

'가 수신되는 경우, 제1 회원의 회원 단말(130)의 메모리 상에 저장되어 있는 상기 제1 OTP 생성 함수를 기초로 상기 제1 일회용 인증 번호인 '1234567'을 생성할 수 있고, 상기 제1 일회용 인증 번호인 '1234567'을 피제수로, 상기 제1 인증용 숫자 '4'를 제수로 하는 모듈로 연산을 수행함으로써, 상기 제1 연산 값 '3'을 산출할 수 있다. For example, according to the above-described example, the member terminal 130 of the first member is configured to store the first OTP generation function, the second OTP generation function, and the first authentication function in the memory of the member terminal 130 of the first member. The number '4' and the number '3' for the second authentication may be pre-stored, and the substitution matrix ' from the gold trading platform server 110

When ' is received, '1234567', which is the first one-time authentication number, may be generated based on the first OTP generation function stored in the memory of the member terminal 130 of the first member, and the first The first operation value '3' may be calculated by performing a modulo operation in which the one-time authentication number '1234567' is a dividend and the first authentication number '4' is a divisor.

In addition, the member terminal 130 of the first member generates the second one-time authentication number '2345678' based on the second OTP generation function stored in the memory of the member terminal 130 of the first member. The second operation value '2' may be calculated by performing a modulo operation in which the second one-time authentication number, '2345678', is a dividend, and the second authentication number, '3', is a divisor. .

After that, the member terminal 130 of the first member ' is (3+1) row (2+1) column in the substitution matrix based on the first operation value '3' and the second operation value '2'. After extracting the component value 'A' located in 4th row and 3rd column' as the first feedback value, the first feedback value 'A' may be transmitted to the gold trading platform server 110 .

When the first feedback value is received as a feedback value corresponding to the permutation matrix from the member terminal 130 of the first member, the check unit 126 checks whether the first feedback value is the same as the first random value. .

When it is confirmed that the first feedback value is the same as the first random value, the authentication completion unit 127 completes the authentication of the member terminal 130 of the first member.

'에 대응되는 상기 제1 피드백 값으로 'A'가 수신되는 경우, 상기 제1 피드백 값인 'A'가 상기 제1 랜덤 값인 'A'와 동일한지 확인할 수 있다. 이때, 확인부(126)에 의해 상기 제1 피드백 값인 'A'가 상기 제1 랜덤 값인 'A'와 동일한 것으로 확인되면, 인증 완료부(127)는 제1 회원의 회원 단말(130)에 대한 인증을 완료할 수 있다.For example, according to the above-described example, the confirmation unit 126 is the permutation matrix ' from the member terminal 130 of the first member.

When 'A' is received as the first feedback value corresponding to ', it may be checked whether 'A', which is the first feedback value, is the same as 'A', which is the first random value. At this time, when it is confirmed by the confirmation unit 126 that 'A', which is the first feedback value, is the same as 'A', which is the first random value, the authentication completion unit 127 provides information on the member terminal 130 of the first member. authentication can be completed.

2 is a flowchart illustrating a method of operating a gold trading platform server that enables gold trading based on a digital gold token according to an embodiment of the present invention.

In step S210, a private key storage unit in which a preset private key for electronic signature (the private key and the public key constituting the key pair is distributed in advance to each member terminal of a plurality of members) is maintained is stored.

In step S220, member information of the plurality of members, asset information (the asset The information includes the weight of gold held by each of the plurality of members, information on a preset gold sales price per unit weight registered by each of the plurality of members) and asset information of each of the plurality of members A digital gold token corresponding to (the digital gold token includes a hash value generated by applying data of asset information of each of the plurality of members as an input to a preset hash function, and the hash value is encrypted with the private key. Maintains a gold information database in which digital signature values are stored.

In step S230, when a request for providing asset information on gold held by a second member, the other, is received from the member terminal of the first member, one of the plurality of members, the gold information database is retrieved from the gold information database. 2 Extracts the first digital gold token corresponding to the asset information on gold held by the member and transmits the first digital gold token to the member terminal of the first member.

In step S240, a verification completion message indicating that verification of the first digital gold token is completed from the member terminal of the first member (the verification completion message is transmitted to the member terminal of the first member as the first digital gold token After this is received, the value obtained by decrypting the digital signature value included in the first digital gold token by the member terminal of the first member with the public key previously distributed in the member terminal of the first member and the first digital As a result of comparing the hash values of the asset information data included in the gold token to see if they match each other, when it is confirmed that the two values match each other, it is generated to indicate that the verification of the first digital gold token has been completed. message) is received, asset information on gold held by the second member is extracted from the gold information database and transmitted to the member terminal of the first member.

In step S250, when a request to purchase gold corresponding to the first weight of the gold held by the second member is received from the member terminal of the first member, member information of the second member is obtained from the gold information database After confirming, a purchase approval request for gold held by the second member equal to the first weight is transmitted to the member terminal of the second member.

In step S260, when a purchase approval confirmation message corresponding to the purchase approval request is received from the member terminal of the second member, a transmission of payment method information is requested to the member terminal of the first member.

In step S270, when the first payment method information is received from the member terminal of the first member, after authentication of the member terminal of the first member is completed, asset information on gold held by the second member Calculating an amount corresponding to the first weight based on information on the unit price of gold per unit weight of the second member included in , and processing the calculated amount based on the first payment method information complete

At this time, according to an embodiment of the present invention, in the method of operating the gold trading platform server, when payment processing for the calculated amount is completed, the gold stored in the gold information database is stored in the gold held by the first member. By increasing the weight of the gold held by the first member by the first weight in the asset information of the first member, the asset information of the gold held by the first member is updated, and the gold held by the second member is updated. The method may further include updating the asset information of the gold held by the second member by subtracting the weight of the gold held by the second member from the asset information of the second member by the first weight.

At this time, according to an embodiment of the present invention, in the method of operating the gold trading platform server, when asset information on gold held by the first member and asset information on gold held by the second member are updated, , applying the updated data of asset information on gold held by the first member as an input to the hash function to generate a first hash value, and encrypting the first hash value with the private key to obtain a first electronic signature a digital gold token corresponding to the asset information of the first member stored in the gold information database after generating a value, generating a second digital gold token including the first hash value and the first electronic signature value is replaced with the second digital gold token, and the updated data of asset information on gold held by the second member is applied to the hash function as an input to generate a second hash value, and the second hash value is encrypted with the private key to generate a second digital signature value, and after generating a third digital gold token including the second hash value and the second digital signature value, the second digital gold token is stored in the gold information database. The method may further include replacing the first digital gold token corresponding to the member's asset information with the third digital gold token.

In addition, according to an embodiment of the present invention, in step S270, an OTP storage unit in which a preset first OTP generating function and a preset second OTP generating function shared in advance with the member terminal of the first member are stored. maintaining, a preset first authentication number m (m is a natural number greater than or equal to 2) and a preset second authentication number k (k is a natural number greater than or equal to 2 different from m) shared with the member terminal of the first member in advance maintaining a number storage unit for authentication in which the number is stored; when the first payment method information is received from the member terminal of the first member, an authentication event for performing authentication of the member terminal of the first member is generated When the authentication event occurs, a module for generating a first one-time authentication number based on the first OTP generation function and then dividing the first one-time authentication number as a dividend and 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 used as 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 the first random value for a component located in (x+1) row (y+1) column in a random matrix, a permutation matrix having a size of mxk is generated, and the permutation matrix is converted into a member terminal of the first member requesting transmission of a feedback value corresponding to the permutation matrix to the member terminal of the first member while transmitting to; The first feedback value is the first OTP generating function, the second OTP generating function, and the first stored in the memory of the member terminal of the first member in the member terminal of the first member. After the first operation value x and the second operation value y are calculated based on the number m for authentication and the second number k for authentication, located in the (x+1) row (y+1) column in the substitution matrix When a component value is a feedback value generated by extraction) is received, checking whether the first feedback value is the same as the first random value, and when it is confirmed that the first feedback value is the same as the first random value, the It may include the step of completing the authentication for the member terminal of the first member.

At this time, according to one embodiment of the present invention, the member terminal of the first member is the first OTP generating function, the second OTP generating function, and the first number for authentication in the memory of the member terminal of the first member. m and the second number k for authentication are pre-stored, and when the substitution matrix is received from the gold trading platform server, based on the first OTP generation function stored in the memory of the member terminal of the first member After generating the first one-time authentication number with After generating the second one-time authentication number based on the second OTP generation function stored in the memory of the member terminal of the first member, the second one-time authentication number is the dividend number, and the second authentication number k is By performing a modulo operation using a divisor, the second operation value y is calculated, and (x+1) rows (y+1) in the substitution matrix based on the first operation value x and the second operation value y ) may be extracted as the first feedback value and then the first feedback value may be transmitted to the gold trading platform server.

In the above, a method of operating a gold trading platform server according to an embodiment of the present invention has been described with reference to FIG. 2 . Here, since the method of operating the gold trading platform server according to an embodiment of the present invention may correspond to the configuration of the operation of the gold trading platform server 110 described with reference to FIG. 1 , a more detailed description thereof will be omitted. do it with

The method of operating the gold trading platform server according to an embodiment of the present invention may be implemented as a computer program stored in a storage medium for execution through combination with a computer.

In addition, the method of operating a gold trading platform server according to an embodiment of the present invention may be implemented in the form of program instructions that can be executed through various computer means and recorded in 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, in the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but these are only 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 described below, but also all of the claims and all equivalents or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

110: gold trading platform server
111: private key storage unit 112: gold information database
113: token transmission unit 114: asset information providing unit
115: purchase approval request transmission unit 116: payment method information request unit
117: payment processing unit 118: asset information update unit
119: token update unit 120: OTP storage unit
121: number storage unit for authentication 122: authentication event generating unit
123: calculation value calculation unit 124: random value generation unit
125: feedback value request unit 126: confirmation unit
127: authentication completion part
130: member terminal of the first member
140: member terminal of the second member

Claims (12)

In a gold trading platform server that enables gold trading based on digital gold tokens,
a private key storage unit storing a preset private key for electronic signature, in which the private key and the public key constituting the key pair are pre-distributed to each member terminal of a plurality of members;
Member information of the plurality of members, asset information on gold held by each of the plurality of members - the amount of gold held by each of the plurality of members is the same - The asset information includes the plurality of The weight of gold held by each member, information on the unit price of gold per unit weight registered by each of the plurality of members is included in advance - and digital gold corresponding to the asset information of each of the plurality of members Token - The digital gold token includes a hash value generated by applying data of asset information of each of the plurality of members as input to a preset hash function, and an electronic signature value generated by encrypting the hash value with the private key IN - this is a stored gold information database;
When a request is received from the member terminal of the first member, which is one of the plurality of members, to provide asset information on gold held by the second member, the second member, the second member holds from the gold information database, a token transmitter for extracting a first digital gold token corresponding to asset information on gold and transmitting the first digital gold token to a member terminal of the first member;
A verification completion message indicating that verification of the first digital gold token is completed from the member terminal of the first member - The verification completion message is transmitted to the member terminal of the first member after the first digital gold token is received, The first member's member terminal decrypts the digital signature value included in the first digital gold token with the public key distributed in advance to the first member's member terminal, and is included in the first digital gold token. As a result of comparing the hash values of the data of the asset information that exist, if it is confirmed that both values match each other, it means a message generated to indicate that the verification of the first digital gold token has been completed - is received, an asset information providing unit extracting asset information on gold held by the second member from the gold information database and transmitting the extracted asset information to the member terminal of the first member;
When a request to purchase gold corresponding to the first weight of the gold held by the second member is received from the member terminal of the first member, member information of the second member is checked from the gold information database, and a purchase approval request transmission unit for transmitting a purchase approval request for the gold held by the second member by the first weight to the member terminal of the second member;
a payment method information requesting unit for requesting transmission of payment method information to the member terminal of the first member when a purchase approval confirmation message corresponding to the purchase approval request is received from the member terminal of the second member; and
When the first payment method information is received from the member terminal of the first member, after completing the authentication of the member terminal of the first member, the second member is included in the asset information on gold. A payment processing unit that calculates an amount corresponding to the first weight based on information on the unit price of gold sold per unit weight of a second member, and completes payment processing for the calculated amount based on the first payment method information
A gold trading platform server that enables gold trading based on digital gold tokens including According to claim 1,
When the payment processing for the calculated amount is completed by the payment processing unit, the amount of gold held by the first member is stored in the gold information database stored in the gold asset information of the first member. By increasing the weight by the first weight, the asset information of the gold held by the first member is updated, and the gold held by the second member in the asset information about the gold held by the second member By subtracting the weight of the first weight, the asset information update unit for updating the asset information on the gold held by the second member
A gold trading platform server that enables gold trading based on digital gold tokens further comprising a. 3. The method of claim 2,
When the asset information of the gold held by the first member and the asset information of the gold held by the second member are updated by the asset information update unit, the updated gold held by the first member By applying the data of asset information to the hash function as an input to generate a first hash value, and 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 second digital gold token including the first digital signature value, the digital gold token corresponding to the asset information of the first member stored in the gold information database is replaced with the second digital gold token, and renewed A second hash value is generated by applying data of asset information about gold held by the second member as an input to the hash function, and a second digital signature value is obtained by encrypting the second hash value with the private key. After generating a third digital gold token including the second hash value and the second electronic signature value, the first digital gold corresponding to the asset information of the second member stored in the gold information database A token update unit that replaces the token with the third digital gold token
A gold trading platform server that enables gold trading based on digital gold tokens further comprising a. According to claim 1,
The payment processing unit
an OTP storage unit storing a preset first OTP (One Time Password) generating function and a preset second OTP generating function shared with the member terminal of the first member in advance;
A preset number m for first authentication (m is a natural number greater than or equal to 2) and a preset number k for second authentication (k is a natural number greater than or equal to 2 different from m) shared with the member terminal of the first member in advance are stored a number storage unit for authentication;
an authentication event generator for generating an authentication event for performing authentication of the member terminal of the first member when the first payment method information is received from the member terminal of the first member;
When the authentication event occurs, after generating a first one-time authentication number based on the first OTP generation function, the first one-time authentication number is a dividend, and the first authentication number m is a divisor. ) by performing an operation to calculate a first calculated value x, generate a second one-time authentication number based on the second OTP generation function, and then use the second one-time authentication number as a dividend, and the second authentication number k an arithmetic value calculating unit for calculating a second arithmetic value y by performing a modulo arithmetic operation in which is a divisor;
a random value generator generating a random matrix having a size of mxk composed of random component values and randomly generating a first random value;
In the random matrix, a permutation matrix having a size of mxk is generated by substituting a component located in a (x+1) row (y+1) column with the first random value, and the permutation matrix is converted to a member of the first member. a feedback value requesting unit for requesting transmission of a feedback value corresponding to the permutation matrix to the member terminal of the first member while transmitting to the terminal;
A first feedback value as a feedback value corresponding to the permutation matrix from the member terminal of the first member - The first feedback value is pre-stored in the memory of the member terminal of the first member in the member terminal of the first member After the first operation value x and the second operation value y are calculated based on the first OTP generation function, the second OTP generation function, the first authentication number m, and the second authentication number k A check unit that checks whether the first feedback value is the same as the first random value when - is a feedback value generated by extracting the component value located in the (x+1) row (y+1) column in the substitution matrix ; and
When it is confirmed that the first feedback value is the same as the first random value, an authentication completion unit that completes the authentication of the member terminal of the first member
A gold trading platform server that enables gold trading based on digital gold tokens including 5. The method of claim 4,
The member terminal of the first member is
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 a memory of the member terminal of the first member, and the gold trading platform When the substitution matrix is received from the server, the first one-time authentication number is generated based on the first OTP generation function stored in the memory of the member terminal of the first member, and then the first one-time authentication number is subtracted , the first operation value x is calculated by performing a modulo operation by dividing the first authentication number m as a divisor, and the second OTP generation function stored in the memory of the member terminal of the first member. 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, as the first feedback value A gold trading platform server enabling gold trading based on a digital gold token, characterized in that it transmits a value to the gold trading platform server. A method of operating a gold trading platform server that enables gold trading based on digital gold tokens,
maintaining a private key storage unit in which a preset private key for electronic signature is stored in which the private key and the public key constituting the key pair are pre-distributed to each member terminal of a plurality of members;
Member information of the plurality of members, asset information on gold held by each of the plurality of members - the amount of gold held by each of the plurality of members is the same - The asset information includes the plurality of The weight of gold held by each member, information on the unit price of gold per unit weight registered by each of the plurality of members is included in advance - and digital gold corresponding to the asset information of each of the plurality of members Token - The digital gold token includes a hash value generated by applying data of asset information of each of the plurality of members as input to a preset hash function, and an electronic signature value generated by encrypting the hash value with the private key being - maintaining this stored gold information database;
When a request is received from the member terminal of the first member, which is one of the plurality of members, to provide asset information on gold held by the second member, the second member, the second member holds from the gold information database, extracting a first digital gold token corresponding to asset information on gold and transmitting the first digital gold token to a member terminal of the first member;
A verification completion message indicating that verification of the first digital gold token is completed from the member terminal of the first member - The verification completion message is transmitted to the member terminal of the first member after the first digital gold token is received, The first member's member terminal decrypts the digital signature value included in the first digital gold token with the public key distributed in advance to the first member's member terminal, and is included in the first digital gold token. As a result of comparing the hash values of the data of the asset information that exist, if it is confirmed that both values match each other, it means a message generated to indicate that the verification of the first digital gold token has been completed - is received, extracting asset information on gold held by the second member from the gold information database and transmitting the information to the member terminal of the first member;
When a request to purchase gold corresponding to the first weight of the gold held by the second member is received from the member terminal of the first member, member information of the second member is checked from the gold information database, and transmitting a purchase approval request for gold held by the second member by the first weight to a member terminal of a second member;
requesting transmission of payment method information to the member terminal of the first member when a purchase approval confirmation message corresponding to the purchase approval request is received from the member terminal of the second member; and
When the first payment method information is received from the member terminal of the first member, after completing the authentication of the member terminal of the first member, the second member is included in the asset information on gold. Calculating an amount corresponding to the first weight based on information on the unit price of gold sold per unit weight of a second member, and completing payment processing for the calculated amount based on the first payment method information
A method of operating a gold trading platform server that enables gold trading based on a digital gold token comprising a. 7. The method of claim 6,
When the payment processing for the calculated amount is completed, the weight of the gold held by the first member is calculated by determining the weight of the gold held by the first member from the gold asset information stored in the gold information database. by increasing by the amount, the asset information of the gold held by the first member is updated, and the weight of the gold held by the second member in the asset information of the gold held by the second member is calculated as the first Updating asset information on gold held by the second member by deducting the weight
An operating method of a gold trading platform server that enables gold trading based on a digital gold token further comprising a. 8. The method of claim 7,
When the asset information of the gold held by the first member and the asset information of the gold held by the second member are updated, the updated data of the asset information of the gold held by the first member is recalled. Applying to a 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, including the first hash value and the first digital signature value After generating a second digital gold token, a digital gold token corresponding to the asset information of the first member stored in the gold information database is replaced with the second digital gold token, and the renewed second member holds A second hash value is generated by applying data of asset information about gold as an input to the hash function, and a second electronic signature value is generated by encrypting the second hash value with the private key, the second hash value and a third digital gold token including the second digital signature value, and then the first digital gold token corresponding to the asset information of the second member stored in the gold information database is converted into the third digital gold token step to replace
An operating method of a gold trading platform server that enables gold trading based on a digital gold token further comprising a. 7. The method of claim 6,
The step of completing the payment processing is
maintaining an OTP storage unit in which a preset first OTP (One Time Password) generating function and a preset second OTP generating function shared in advance with the member terminal of the first member are stored;
A preset number m for first authentication (m is a natural number greater than or equal to 2) and a preset number k for second authentication (k is a natural number greater than or equal to 2 different from m) shared with the member terminal of the first member in advance are stored maintaining a numeric storage unit for authentication;
generating an authentication event for performing authentication of the member terminal of the first member when the first payment method information is received from the member terminal of the first member;
When the authentication event occurs, after generating a first one-time authentication number based on the first OTP generation function, the first one-time authentication number is a dividend, and the first authentication number m is a divisor. ) by performing an operation to calculate a first calculated value x, generate a second one-time authentication number based on the second OTP generation function, and then use the second one-time authentication number as a dividend, and the second authentication number k calculating a second operation value y by performing a modulo operation in which y is a divisor;
generating a random matrix having a size of mxk composed of random component values, and randomly generating a first random value;
In the random matrix, a permutation matrix having a size of mxk is generated by substituting a component located in a (x+1) row (y+1) column with the first random value, and the permutation matrix is converted to a member of the first member. requesting transmission of a feedback value corresponding to the permutation matrix to the member terminal of the first member while transmitting to the terminal;
A first feedback value as a feedback value corresponding to the permutation matrix from the member terminal of the first member - The first feedback value is pre-stored in the memory of the member terminal of the first member in the member terminal of the first member After the first operation value x and the second operation value y are calculated based on the first OTP generation function, the second OTP generation function, the first authentication number m, and the second authentication number k checking whether the first feedback value is the same as the first random value when - is a feedback value generated by extracting a component value located in a (x+1) row (y+1) column in the substitution matrix; and
When it is confirmed that the first feedback value is the same as the first random value, completing the authentication of the first member to the member terminal;
A method of operating a gold trading platform server that enables gold trading based on a digital gold token comprising a. 10. The method of claim 9,
The member terminal of the first member is
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 a memory of the member terminal of the first member, and the gold trading platform When the substitution matrix is received from the server, the first one-time authentication number is generated based on the first OTP generation function stored in the memory of the member terminal of the first member, and then the first one-time authentication number is subtracted , the first operation value x is calculated by performing a modulo operation by dividing the first authentication number m as a divisor, and the second OTP generation function stored in the memory of the member terminal of the first member. 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, as the first feedback value A method of operating a gold trading platform server that enables gold trading based on a digital gold token, characterized in that the value is transmitted to the gold trading platform server. 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.

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