KR102430269B1 - Cloud-based gold asset management server that enables the production of customized gold bars with personal images embedded on the basis of digital gold tokens and operating method thereof - Google Patents

Abstract

Disclosed are a gold asset management server that enables the production of a customized gold bar in which a personal image is inserted based on a digital gold token, and a method of operating the same. The present invention relates to a gold asset management server that supports a member holding gold to create a customized gold bar in which his or her personal image is inserted, and a method for operating the same.

Description

CLOUD-BASED GOLD ASSET MANAGEMENT SERVER THAT ENABLES THE PRODUCTION OF CUSTOMIZED GOLD BARS WITH PERSONAL IMAGES EMBEDDED A cloud-based gold asset management server that enables the production of customized gold bars with personal images inserted based on digital gold tokens ON THE BASIS OF DIGITAL GOLD TOKENS AND OPERATING METHOD THEREOF}

The present invention relates to a gold asset management server that enables the production of a customized gold bar in which a personal image is inserted based on a digital gold token, and a method of operating the same.

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, works of art, and commemorative coins in addition to real estate.

Among these spot assets, gold is regarded as a safe asset around the world, and many people are interested in purchasing gold as the economy becomes difficult.

In this way, as interest in gold is amplified, interest in gold bars is also increasing recently. A gold bar means a bar-shaped gold bar, and it has a luxurious image, so it is often used as a gift.

Therefore, if a user's personal image, such as a family photo or personal photo, is inserted in a gold bar having such a luxurious image, and a customized gold bar can be manufactured, the satisfaction of the user who produced the corresponding gold bar can be increased.

In particular, in recent years, as the number of users who hold gold as an investment asset rather than in kind is increasing, the use of a gold asset management platform to manage the gold assets of these users is increasing. Accordingly, it is possible to consider the introduction of a service that supports users to create a predetermined customized gold bar by utilizing the gold assets they have in the gold asset management platform.

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 the service technology related to the gold asset management server that supports the production of a predetermined customized gold bar by utilizing the gold assets possessed by the user. It is necessary to study technology that can increase the reliability and safety of data management by digitalizing and managing them.

An object of the present invention is to provide a gold asset management server that supports a member holding gold to create a customized gold bar in which his or her personal image is inserted, and a method of operating the same.

In addition, the gold asset management server and the method of operation thereof according to the present invention digitally tokenize and manage asset information on gold held by members, thereby preventing data of asset information on gold held by members from being leaked. make it possible

Based on the digital gold token according to an embodiment of the present invention, a gold asset management server that enables the production of a customized gold bar with a personal image inserted therein is a preset private key for electronic signature - public constituting the private key and key pair A key is pre-distributed to each member terminal of a plurality of members - a private key storage unit in which is stored, member identification information of the plurality of members, and gold held by each of the plurality of members - the plurality of members The purity of gold each held is the same - Asset information about - The asset information means information about the weight of gold each of the plurality of members holds - and each of the plurality of members Digital gold token corresponding to asset information - 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. The generated electronic signature value is included - the stored gold information database, information on a plurality of preset gold bar standards, and the weight of gold required to produce a gold bar according to each of the plurality of gold bar standards A gold bar information database in which information is stored in correspondence with each other, and when a process processing request for manufacturing a customized gold bar with a personal image is received from a member terminal of a first member, one of the plurality of members, the gold information database After extracting a first digital gold token corresponding to asset information on gold held by the first member from A verification request unit requesting verification of the first digital gold token to a 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 the As the first digital gold token is received at the member terminal of the first member, After the member terminal of the first member is requested to verify the first digital gold token, the member terminal of the first member converts the electronic signature value included in the first digital gold token to the member of the first member. When the value decrypted with the public key distributed in advance in the terminal and the hash value of the asset information included in the first digital gold token match each other, when it is confirmed that both values match each other , means a message generated to indicate that the verification of the first digital gold token has been completed. When − is received, asset information on gold held by the first member is extracted from the gold information database, and the When a request for manufacturing a customized gold bar according to a first standard among the plurality of gold bar standards is received while the first personal image is received from the asset information providing unit transmitted to the member terminal of the first member and the member terminal of the first member , after the authentication of the member terminal of the first member is performed, the first weight corresponding to the first standard is checked from the gold bar information database, and the first member stored in the gold information database holds After confirming whether the weight of the gold held by the first member exceeds the first weight in the asset information on the gold, it is confirmed that the weight of the gold held by the first member exceeds the first weight In this case, an approval message transmitter for generating an approval message indicating that approval for the production of the customized gold bar according to the first standard has been completed and transmitting it to the member terminal of the first member, and the approval message to the member terminal of the first member When the message is transmitted, by subtracting the weight of the gold held by the first member from the asset information of the gold held by the first member stored in the gold information database by the first weight, the first Includes an asset update unit that updates asset information on gold held by members.

In addition, the operation method of the gold asset management server that enables the production of a customized gold bar with a personal image inserted therein 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 is pre-distributed to each member terminal of a plurality of members - maintaining a stored private key storage unit, member identification information of the plurality of members, each of the plurality of members holds Asset information on gold present - the purity of gold held by each of the plurality of members is the same - The asset information means information on the weight of gold held by each of the plurality of members - 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 includes the generated digital signature value encrypted with the private key - maintaining the stored gold information database, information on a plurality of preset gold bar standards, and each of the plurality of gold bar standards maintaining a gold bar information database in which information on the weight of gold required to produce a gold bar according to each other is stored in correspondence with each other; When a request for processing a process for producing a gold bar is received, a first digital gold token corresponding to the gold asset information held by the first member is extracted from the gold information database, and then the first digital gold token is sent to the member terminal of the first member. requesting verification of the first digital gold token from the member terminal of the first member while transmitting the first digital gold token; verification of the first digital gold token from the member terminal of the first member Verification complete message indicating that it has been completed - The verification complete message is the first As the first digital gold token is received in the member terminal of the member, after verification of the first digital gold token is requested from the member terminal of the first member, the member terminal of the first member receives the first digital gold The value obtained by decrypting the digital signature value included in the token with the public key distributed in advance in the member terminal of the first member and the hash value of the asset information data included in the first digital gold token match each other As a result of the comparison, 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. extracting asset information on gold held by a member and transmitting it to the member terminal of the first member; receiving a first personal image from the member terminal of the first member; When a request for manufacturing a customized gold bar according to a standard is received, the first member's member terminal is authenticated, the first weight corresponding to the first standard is checked from the gold bar information database, and the gold information After checking whether the weight of the gold held by the first member exceeds the first weight in the asset information of the gold held by the first member stored in the database, the amount of gold held by the first member When it is confirmed that the weight exceeds the first weight, generating an approval message indicating that approval for the production of the customized gold bar according to the first standard is completed and transmitting it to the member terminal of the first member; When the approval message is transmitted to the member terminal of the first member, the weight of the gold held by the first member is calculated from the asset information of the gold held by the first member stored in the gold information database. and updating asset information on gold held by the first member by deducting one weight. .

The present invention can provide a gold asset management server and an operating method thereof that support a member holding gold to create a customized gold bar in which his or her personal image is inserted.

In addition, the gold asset management server and the method of operation thereof according to the present invention digitally tokenize and manage asset information on gold held by members, thereby preventing data of asset information on gold held by members from being leaked. can do.

1 is a diagram showing the structure of a gold asset management server according to an embodiment of the present invention.
2 is a flowchart illustrating a method of operating a gold asset management 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. In 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 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 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 asset management server according to an embodiment of the present invention.

The gold asset management server 110 according to an embodiment of the present invention is a device that enables the production of a customized gold bar with a personal image inserted therein based on a digital gold token, and includes a private key storage unit 111 and a gold information database ( 112 ), a gold bar information database 113 , a verification requesting unit 114 , an asset information providing unit 115 , an approval message transmitting unit 116 , and an asset updating 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 identification 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. have.

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

In addition, the purity of gold held by each of the plurality of members is the same, and the asset information means information on the weight of gold held by each of the plurality of members. In addition, 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 an electronic signature value generated by encrypting the hash value with the private key. have.

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

Member identification information Asset information for gold digital gold token Member identification information of Member 1 Weight of gold: 100g Digital Gold Token 1 Member identification information of Member 2 Weight of gold: 50g Digital Gold Token 2 ... ... ...

In the gold bar information database 113, information on a plurality of preset gold bar standards and information on a weight of gold required to manufacture a gold bar according to each of the plurality of gold bar standards are stored in correspondence with each other.

In relation to this, information may be stored in the gold bar information database 113 as shown in Table 2 below.

Multiple Gold Bar Specifications Information on the weight of gold required to produce a gold bar according to each gold bar standard Gold bar standard 1 Weight of gold: 10g Gold bar standard 2 Weight of gold: 18.75g Gold bar standard 3 Weight of Gold: 37.5g ... ...

The verification request unit 114 receives a process processing request for production of a customized gold bar having a personal image inserted therein from the member terminal 130 of the first member, which is one of the plurality of members, the gold information database 112 . After extracting the first digital gold token corresponding to the asset information of the gold held by the first member from the The member terminal 130 requests verification of the first digital gold token.

At this time, according to an embodiment of the present invention, the member terminal 130 of the first member receives the first digital gold token from the gold asset management server 110 and receives the first digital gold token from the gold asset management server 110 . When verification of the digital gold token is requested, the digital signature value included in the first digital gold token is decrypted with the public key distributed in advance to the member terminal 130 of the first member, and the decrypted value is the second 1 A verification completion message indicating that verification of the first digital gold token has been completed when it is confirmed by comparing the hash value of the asset information included in the 1 digital gold token to see if they are identical to each other After generating , the verification completion message may be transmitted to the gold asset management server 110 .

When a verification complete message indicating that verification of the first digital gold token is completed is received from the member terminal 130 of the first member, the asset information providing unit 115 receives the first member from the gold information database 112 . The asset information on the gold is extracted and transmitted to the member terminal 130 of the first member.

That is, the asset information providing unit 115 provides information about the gold held by the first 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. Asset information can be transmitted.

In this way, when the first member's member terminal 130 receives asset information on gold held by the first member, the first member allows the first member through the first member's member terminal 130 . View asset information on the gold held, designate a predetermined gold bar standard to be ordered by the first member from among the plurality of gold bar standards, and input it into the member terminal 130 of the first member to be inserted into the corresponding gold bar. A predetermined personal image such as a family picture or a personal picture may be input.

If, while the first personal image is input by the first member to the member terminal 130 of the first member by the first member, and it is said that the command to produce the customized gold bar according to the first standard is approved, the member terminal 130 of the first member While transmitting the first personal image to the silver and gold asset management server 110 , a request for manufacturing a customized gold bar according to the first standard among the plurality of gold bar standards may be transmitted.

The approval message transmitting unit 116 receives a request for manufacturing a customized gold bar according to the first standard among the plurality of gold bar standards while receiving the first personal image from the member terminal 130 of the first member. After the first member authenticates the member terminal 130 , the first weight corresponding to the first standard is checked from the gold bar information database 113 , and the first weight stored in the gold information database 112 is checked. 1 After checking whether the weight of the gold held by the first member exceeds the first weight in the asset information of the gold held by the member, the weight of the gold held by the first member is the first weight When it is confirmed that the amount exceeds, an approval message indicating that approval for the production of the customized gold bar according to the first standard has been completed is generated and transmitted to the member terminal 130 of the first member.

When the approval message is transmitted to the member terminal 130 of the first member, the asset update unit 117 selects the first member from asset information on gold held by the first member stored in the gold information database 112 . By deducting the weight of the gold held by the first member by the first weight, the asset information on the gold held by the first member is updated.

Hereinafter, operations of the verification request unit 114 , the asset information provision unit 115 , the approval message transmission unit 116 , and the asset update unit 117 will be described in detail with an example.

For example, assume that the first member is 'member 1' in the gold information database 112 as shown in Table 1 above.

At this time, when a process processing request for production of a customized gold bar having a personal image inserted therein is received from the member terminal 130 of 'Member 1', which is one of the plurality of members, the verification request unit 114 sends the gold information database ( 112), 'Digital Gold Token 1' corresponding to 'Gold Weight: 100g', which is asset information on gold owned by 'Member 1', can be extracted.

After that, the verification request unit 114 transmits the 'digital gold token 1' to the member terminal 130 of the 'member 1', Verification may be requested.

At this time, the member terminal 130 of 'member 1' receives the 'digital gold token 1' from the gold asset management server 110 and requests verification of the 'digital gold token 1' from the gold asset management server 110 When it is done, the digital signature value included in 'Digital Gold Token 1' is decrypted with the public key distributed in advance to the member terminal 130 of 'Member 1', and the decrypted value is included in 'Digital Gold Token 1'. After comparing the hash value of the data of the asset information and the hash value for the same, if it is confirmed that the two values match each other, a verification completion message indicating that the verification of 'Digital Gold Token 1' is completed, and then the verification A completion message may be transmitted to the gold asset management server 110 .

In this way, when the verification completion message indicating that verification of the 'digital gold token 1' is completed is received from the member terminal 130 of 'member 1', the asset information providing unit 115 provides gold information as shown in Table 1 above. 'Weight of gold: 100 g', which is asset information on gold owned by 'Member 1', may be extracted from the database 112 and transmitted to the member terminal 130 of 'Member 1'.

At this time, when asset information on gold held by 'Member 1' is received in the member terminal 130 of 'Member 1', 'Member 1' is 'Member 1' through the member terminal 130 of 'Member 1'. Looking at the asset information on gold held by 1', 'Gold Bar Standard 1' is a standard for a customized gold bar to be ordered by 'Member 1' among a plurality of gold bar standards in the gold bar information database 113 as shown in Table 2 above. After designating 'Member 1', while inputting the first personal image to be inserted into the gold bar into the member terminal 130 of 'Member 1', a command for producing a customized gold bar according to the 'Gold Bar Standard 1' may be applied.

Then, the member terminal 130 of 'Member 1' transmits the first personal image to the gold asset management server 110, while requesting production processing of a customized gold bar according to 'Gold Bar Standard 1' among the plurality of gold bar standards. can be transmitted.

In this way, while receiving the first personal image from the member terminal 130 of 'Member 1', when a request for manufacturing a customized gold bar according to 'Gold Bar Standard 1' among the plurality of gold bar standards is received, an approval message transmission unit 116 indicates the first weight '10g' corresponding to 'Gold Bar Standard 1' from the gold bar information database 113 as shown in Table 2 after authentication of the member terminal 130 of 'Member 1' is performed. can confirm.

Thereafter, the approval message transmitting unit 116 determines the amount of gold held by 'Member 1' in the asset information on gold held by 'Member 1' stored in the gold information database 112 as shown in Table 1 above. It can be checked whether the weight of '100g' exceeds the first weight of '10g'.

At this time, since '100g', which is the weight of gold held by 'member 1', exceeds the first weight of '10g', the approval message transmitting unit 116 manufactures a customized gold bar according to 'gold bar standard 1'. may generate an approval message indicating that approval for 'member 1' has been completed and transmit it to the member terminal 130 of 'member 1'.

Then, the asset update unit 117 determines the weight of gold held by 'Member 1' in the asset information on gold held by 'Member 1' stored in the gold information database 112 as shown in Table 1 above. By deducting '100g', which is the first weight, by '10g', which is the first weight, asset information on gold held by 'member 1' can be updated as shown in Table 3 below.

Member identification information Asset information for gold digital gold token Member identification information of Member 1 Weight of gold: 90g Digital Gold Token 1 Member identification information of Member 2 Weight of gold: 50g Digital Gold Token 2 ... ... ...

In this way, when the weight of the gold held by the first member in the gold information database 112 is updated by the asset updater 117 to the weight of the gold that is deducted by the first weight, the manager can control the first personal image After completion of the production of the customized gold bar according to the first standard into which is inserted, the finished customized gold bar may be sent to the address of the first member.

At this time, according to an embodiment of the present invention, the gold asset management server 110 may further include a token update unit 118 .

When the asset information of the gold held by the first member is updated by the asset update unit 117 by the token update unit 118, the updated data of the asset information on the gold held by the first member is applied 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, wherein the first hash value and the first digital signature value are After generating the included second digital gold token, the first digital gold token corresponding to the asset information of the first member stored in the gold information database 112 is replaced with the second digital gold token.

For example, according to the example described above, when the asset information on gold held by 'Member 1' is updated by the asset update unit 117 by the token update unit 118 as shown in Table 3 above, the updated ' A first hash value is generated by applying data of asset information about gold held by member 1' to the hash function as an input, and a first electronic signature value is generated by encrypting the first hash value with the private key, , after generating a 'digital gold token 3', which is a second digital gold token including the first hash value and the first electronic signature value, the 'member' stored in the gold information database 112 as shown in Table 2 above. 'Digital Gold Token 1', which is a digital gold token corresponding to asset information of 1', may be replaced with 'Digital Gold Token 3', which is the second digital gold token, as shown in Table 4 below.

Member identification information Asset information for gold digital gold token Member identification information of Member 1 Weight of gold: 90g Digital Gold Token 3 Member identification information of Member 2 Weight of gold: 50g Digital Gold Token 2 ... ... ...

According to an embodiment of the present invention, the approval message transmitting unit 116 receives the first personal image from the member terminal 130 of the first member, and is customized according to the first standard among the plurality of gold bar standards. A configuration for authenticating the member terminal 130 of the first member when a gold bar production processing request is received, the OTP storage unit 119, the number storage unit 120 for authentication, the authentication event generating unit 121, It may include an operation value calculating unit 122 , a random value generating unit 123 , a feedback value requesting unit 124 , a checking unit 125 , and an authentication completion unit 126 .

The OTP storage unit 119 stores a preset first OTP (One Time Password) generating function and a preset second OTP generating function that are pre-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 120, 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.

The authentication event generating unit 121 receives the first personal image from the member terminal 130 of the first member and receives a request for manufacturing a customized gold bar according to the first standard among the plurality of gold bar standards, An authentication event for performing authentication of the member terminal 130 of the first member is generated.

When the authentication event occurs, the calculation value calculation unit 122 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 123 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 124 generates a permutation matrix having a size of m x k by substituting the first random value for a component located at (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, '12341234' is generated as the first one-time authentication number, '56785678' is generated as the second one-time authentication number, the preset number m for the first authentication is '4', and the preset number k for the second authentication is '4'. In the case of '3', the calculation value calculation unit 122 performs a modulo operation in which the first one-time authentication number, '12341234', is a dividend, and the first authentication number '4' is a divisor. 1 operation value '2' can be calculated, and by performing a modulo operation in which the second one-time authentication number '56785678' is a dividend and the second authentication number '3' is a divisor, the second operation value '1' can be calculated.

'을 생성할 수 있고, 제1 랜덤 값인 'R'을 랜덤하게 생성할 수 있다.Then, the random value generator 123 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 'R' may be randomly generated.

'을 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 124 replaces the component located in '3 rows and 2 columns' that is (2+1) rows (1+1) columns in the random matrix with 'R', 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 member terminal 130 of the first member is stored in the memory of the member terminal 130 of the first member, the first OTP generating function, the second OTP generating function, and the second 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 asset management 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 calculation 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.

Then, 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 as 1 feedback value, the first feedback value may be transmitted to the gold asset management server 110 .

'이 수신되는 경우, 제1 회원의 회원 단말(130)의 메모리 상에 저장되어 있는 상기 제1 OTP 생성 함수를 기초로 상기 제1 일회용 인증 번호인 '12341234'를 생성한 후, 상기 제1 일회용 인증 번호인 '12341234'를 피제수로, 상기 제1 인증용 숫자 '4'를 제수로 하는 모듈로 연산을 수행함으로써, 상기 제1 연산 값 '2'를 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 from the gold asset management server 110, the substitution matrix '

When ' is received, after generating '12341234', which is the first one-time authentication number, based on the first OTP generation function stored in the memory of the member terminal 130 of the first member, the first one-time By performing a modulo operation in which the authentication number '12341234' is a dividend and the first authentication number '4' is a divisor, the first operation value '2' may be calculated.

In addition, the member terminal 130 of the first member generates the second one-time authentication number '56785678' based on the second OTP generation function stored in the memory of the member terminal 130 of the first member. Then, the second operation value '1' may be calculated by performing a modulo operation in which the second one-time authentication number '56785678' is a dividend and the second authentication number '3' is a divisor.

After that, the member terminal 130 of the first member ' is a (2+1) row (1+1) column in the substitution matrix based on the first operation value '2' and the second operation value '1'. After extracting the component value 'R' located in 3rd row and 2nd column' as the first feedback value, the first feedback value 'R' may be transmitted to the gold asset management 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 125 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 126 completes the authentication of the member terminal 130 of the first member.

'에 대응되는 상기 제1 피드백 값으로 'R'이 수신되는 경우, 상기 제1 피드백 값인 'R'이 상기 제1 랜덤 값인 'R'과 동일한지 확인할 수 있다. 이때, 확인부(125)에 의해 상기 제1 피드백 값인 'R'이 상기 제1 랜덤 값인 'R'과 동일한 것으로 확인되면, 인증 완료부(126)는 제1 회원의 회원 단말(130)에 대한 인증을 완료할 수 있다.For example, according to the above-described example, the confirmation unit 125 is the permutation matrix ' from the member terminal 130 of the first member.

When 'R' is received as the first feedback value corresponding to ', it may be checked whether 'R', which is the first feedback value, is the same as 'R', which is the first random value. At this time, when it is confirmed by the check unit 125 that 'R', which is the first feedback value, is the same as 'R', which is the first random value, the authentication completion unit 126 determines the authentication can be completed.

In this way, the approval message transmission unit 116 includes the OTP storage unit 119, the authentication number storage unit 120, the authentication event generation unit 121, the calculation value calculation unit 122, the random value generation unit 123, After authentication of the member terminal 130 of the first member is performed through the feedback value requesting unit 124 , the verification unit 125 , and the authentication completion unit 126 , the authentication of the member terminal 130 of the first member is performed. When this is completed, the first weight corresponding to the first standard is checked from the gold bar information database 113 , and the first weight stored in the gold information database 112 is obtained from the gold asset information held by the first member. After checking whether the weight of the gold held by the first member exceeds the first weight, if it is confirmed that the weight of the gold held by the first member exceeds the first weight, By generating an approval message indicating that approval for the production of the customized gold bar has been completed and transmitting it to the member terminal 130 of the first member, the manufacturing process for the customized gold bar may proceed.

2 is a flowchart illustrating an operation method of a gold asset management server that enables the production of a customized gold bar with a personal image inserted therein 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 pre-distributed to each member terminal of a plurality of members) is maintained.

In step S220, member identification information of the plurality of members and asset information (the purity of gold held by each of the plurality of members are the same) on each of the plurality of members The asset information refers to information on the weight of gold held by each of the plurality of members) and a digital gold token corresponding to the asset information of each of the plurality of members (the digital gold token includes the plurality of members) Maintain a gold information database in which the data of each asset information is applied as an input to a preset hash function and a hash value generated and the hash value are encrypted with the private key and an electronic signature value generated) is stored do.

In step S230, a gold bar information database is maintained in which information on a plurality of preset gold bar standards and information on a weight of gold required to manufacture a gold bar according to each of the plurality of gold bar standards are stored in correspondence with each other. do.

In step S240, when a process processing request for production of a customized gold bar having a personal image inserted therein is received from the member terminal of the first member, which is one of the plurality of members, the first member holds the gold information database from the gold information database. After extracting the first digital gold token corresponding to the asset information of the gold being used, the first digital gold token is transmitted to the member terminal of the first member, and the first digital gold token is transmitted to the member terminal of the first member. Request verification of the token.

In step S250, 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 and the first digital gold token As this is received, after verification of the first digital gold token is requested from the member terminal of the first member, the member terminal of the first member returns the electronic signature value included in the first digital gold token to the second digital gold token. As a result of comparing the value decrypted with the public key distributed in the member terminal of 1 member in advance and the hash value of the asset information data included in the first digital gold token, it is found that both values match each other. When it is confirmed that - means a message generated to indicate that the verification of the first digital gold token is completed - when received, asset information on gold held by the first member is retrieved from the gold information database extracted and transmitted to the member terminal of the first member.

In step S260, when a request for manufacturing a customized gold bar according to a first standard among the plurality of gold bar standards is received while a first personal image is received from the member terminal of the first member, the member terminal of the first member After authentication is performed, the first weight corresponding to the first standard is checked from the gold bar information database, and the gold asset information of the first member stored in the gold information database is After checking whether the weight of the gold held by the first member exceeds the first weight, if it is confirmed that the weight of the gold held by the first member exceeds the first weight, An approval message indicating that approval for the production of the customized gold bar has been completed is generated and transmitted to the member terminal of the first member.

In step S270, when the approval message is transmitted to the member terminal of the first member, in the asset information of the gold held by the first member stored in the gold information database, the first member is By subtracting the weight of gold by the first weight, the asset information of the gold held by the first member is updated.

In this case, according to an embodiment of the present invention, the member terminal of the first member receives the first digital gold token from the gold asset management server and verifies the first digital gold token from the gold asset management server When this request is made, the digital signature value included in the first digital gold token is decrypted with the public key distributed in advance to the member terminal of the first member, and the decrypted value is included in the first digital gold token. When it is confirmed that the hash values of the asset information match each other, the verification is completed after generating the verification completion message indicating that verification of the first digital gold token is completed. A message may be sent to the gold asset management server.

In addition, according to an embodiment of the present invention, in the method of operating the gold asset management server, when asset information on gold held by the first member is updated, the updated gold asset information for the gold held by the first member is updated. Applying asset information 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 generating a second digital gold token including an electronic signature value and then replacing the first digital gold token corresponding to the asset information of the first member stored in the gold information database with the second digital gold token; may further include.

In addition, according to an embodiment of the present invention, in step S260, 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 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 maintaining a number storage unit for authentication in which the number is stored; manufacturing and processing a customized gold bar according to the first standard among the plurality of gold bar standards while the first personal image is received from the member terminal of the first member When the request is received, generating an authentication event for performing authentication of 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 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 a second one-time authentication function is based on the second OTP generation function. Calculating a second operation value y by generating a number 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, m x k composed of random component values generating a random matrix having a size of and randomly generating a first random value, by substituting a component located in (x+1) row (y+1) column in the random matrix with the first random value, generating a permutation matrix having a size of m x k, transmitting the permutation matrix to the member terminal of the first member, and requesting transmission of a feedback value corresponding to the permutation matrix to the member terminal of the first member; 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 the memory of the member terminal of the first member in the member terminal of the first member The first calculated value x and the second calculated value based on the first OTP generation function, the second OTP generation function, the first authentication number m, and the second authentication number k, which are pre-stored in the When y is calculated and a feedback value generated by extracting a component value located in (x+1) row (y+1) column in the substitution matrix is received, 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, completing authentication of the member terminal of the first member.

At this time, according to an 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 stored in advance, and when the substitution matrix is received from the gold asset management 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 , 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 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 asset management server.

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

The operating method of the gold asset management 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.

The operating method of the gold asset management server according to an embodiment of the present invention may be implemented in the form of a program command 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, the present invention has been described with specific matters such as specific components and limited embodiments and drawings, 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 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: gold asset management server
111: private key storage unit 112: gold information database
113: gold bar information database 114: verification request unit
115: asset information providing unit 116: approval message transmitting unit
117: asset update unit 118: token update unit
119: OTP storage 120: number storage for authentication
121: authentication event generation unit 122: calculation value calculation unit
123: random value generation unit 124: feedback value request unit
125: confirmation unit 126: authentication completion unit
130: member terminal of the first member

Claims (12)

In a gold asset management server that enables the production of a customized gold bar with a personal image inserted based on a digital gold token,
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 identification information of the plurality of members, asset information on gold held by each of the plurality of members - the purity of gold held by each of the plurality of members is the same - asset information about the plurality of members means information on the weight of gold held by each of the members of - and a digital gold token corresponding to the asset information of each of the plurality of members - The digital gold token includes the asset information of each of the plurality of members a gold information database in which data is applied as an input to a preset hash function and a hash value generated, and an electronic signature value generated by encrypting the hash value with the private key are stored;
a gold bar information database in which information on a plurality of preset gold bar standards and information on a weight of gold required to manufacture a gold bar according to each of the plurality of gold bar standards are stored in correspondence with each other;
When a process processing request for production of a customized gold bar having a personal image inserted therein is received from the member terminal of the first member, one of the plurality of members, the gold information database for the gold held by the first member is received from the gold information database. After extracting the first digital gold token corresponding to the asset information, while transmitting the first digital gold token to the member terminal of the first member, the verification of the first digital gold token is performed to the member terminal of the first member a requesting verification request unit;
A verification completion message indicating that verification of the first digital gold token has been completed from the member terminal of the first member. After verification of the first digital gold token is requested from the member terminal of the first member, the member terminal of the first member returns the electronic signature value included in the first digital gold token to the member terminal of the first member When it is confirmed that the value decrypted with the public key distributed in advance in When - means a message generated to indicate that verification of the first digital gold token has been completed - is received, asset information on gold held by the first member is extracted from the gold information database and the first Asset information providing unit for transmitting to the member's member terminal;
When the first personal image is received from the member terminal of the first member, and a request for manufacturing a customized gold bar according to the first standard among the plurality of gold bar standards is received, authentication of the member terminal of the first member is performed After that, the first weight corresponding to the first standard is checked from the gold bar information database, and the first member holds the gold asset information stored in the gold information database stored in the gold bar information database. After checking whether the weight of the gold being used exceeds the first weight, if it is confirmed that the weight of the gold held by the first member exceeds the first weight, the production of a customized gold bar according to the first standard is performed. an approval message transmission unit for generating an approval message indicating that approval for approval is complete and transmitting it to the member terminal of the first member; and
When the approval message is transmitted to the member terminal of the first member, the weight of the gold held by the first member is determined from the asset information of the gold held by the first member stored in the gold information database. By deducting the first weight, the asset update unit updates the asset information on the gold held by the first member.
including,
The acknowledgment message transmitter
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;
When the first personal image is received from the member terminal of the first member and a request for manufacturing a customized gold bar according to the first standard among the plurality of gold bar standards is received, authentication of the member terminal of the first member is performed. an authentication event generating unit for generating an authentication event to be performed;
When the authentication event occurs, a first one-time authentication number is generated based on the first OTP generation function, and then the first one-time authentication number is a dividend number and the first authentication number m is a divisor (Modulo). ) by performing an operation to calculate a first operation 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, the second authentication number k an arithmetic value calculation 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
including,
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 the memory of the member terminal of the first member, and the gold asset management 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 dividend By performing a modulo operation of dividing the first authentication number m as a divisor, the first operation value x is calculated, 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 a component value located in (x+1) row (y+1) column in the substitution matrix as the first feedback value based on the first operation value x and the second operation value y, the first feedback value and transmitting a value to the gold asset management server. According to claim 1,
The member terminal of the first member is
When the first digital gold token is received from the gold asset management server and verification of the first digital gold token is requested from the gold asset management server, the electronic signature value included in the first digital gold token is retrieved from the gold asset management server. Decryption is performed with the public key distributed in advance in the member terminal of the first member, and the decrypted value is compared with the hash value of the asset information included in the first digital gold token to see if both values match each other When it is confirmed that the first digital gold token is verified, the gold asset management server generates the verification completion message indicating that verification of the first digital gold token is completed, and then transmits the verification completion message to the gold asset management server. According to claim 1,
When the asset information on the gold held by the first member is updated by the asset update unit, the updated data of the asset information on the gold held by the first member is applied as an input to the hash function. A first hash value is generated, the first hash value is encrypted with the private key to generate a first digital signature value, and a second digital gold token including the first hash value and the first digital signature value is generated. and then a token update unit that replaces the first digital gold token corresponding to the asset information of the first member stored in the gold information database with the second digital gold token
Gold asset management server further comprising a. delete delete A method of operating a gold asset management server that enables the production of a customized gold bar in which a personal image is inserted based on a digital gold token,
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 identification information of the plurality of members, asset information on gold held by each of the plurality of members - the purity of gold held by each of the plurality of members is the same - asset information about the plurality of members means information on the weight of gold held by each of the members of - and a digital gold token corresponding to the asset information of each of the plurality of members - The digital gold token includes the asset information of each of the plurality of members a hash value generated by applying data as an input to a preset hash function, and an electronic signature value generated by encrypting the hash value with the private key - maintaining a stored gold information database;
maintaining a gold bar information database in which information on a plurality of preset gold bar standards and information on a weight of gold required to manufacture a gold bar according to each of the plurality of gold bar standards are stored in correspondence with each other;
When a process processing request for production of a customized gold bar having a personal image inserted therein is received from the member terminal of the first member, one of the plurality of members, the gold information database for the gold held by the first member is received from the gold information database. After extracting the first digital gold token corresponding to the asset information, while transmitting the first digital gold token to the member terminal of the first member, the verification of the first digital gold token is performed to the member terminal of the first member requesting;
A verification completion message indicating that verification of the first digital gold token has been completed from the member terminal of the first member. After verification of the first digital gold token is requested from the member terminal of the first member, the member terminal of the first member returns the electronic signature value included in the first digital gold token to the member terminal of the first member When it is confirmed that the value decrypted with the public key distributed in advance in When - means a message generated to indicate that verification of the first digital gold token has been completed - is received, asset information on gold held by the first member is extracted from the gold information database and the first transmitting the member's member terminal;
When the first personal image is received from the member terminal of the first member, and a request for manufacturing a customized gold bar according to the first standard among the plurality of gold bar standards is received, authentication of the member terminal of the first member is performed After that, the first weight corresponding to the first standard is checked from the gold bar information database, and the first member holds the gold asset information stored in the gold information database stored in the gold bar information database. After checking whether the weight of the gold being used exceeds the first weight, if it is confirmed that the weight of the gold held by the first member exceeds the first weight, the production of a customized gold bar according to the first standard is performed. generating an approval message indicating that approval has been completed and transmitting it to the member terminal of the first member; and
When the approval message is transmitted to the member terminal of the first member, the weight of the gold held by the first member is determined from the asset information of the gold held by the first member stored in the gold information database. Updating asset information on gold held by the first member by subtracting the first weight
including,
The step of generating the approval message and transmitting it to the member terminal of the first member includes:
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;
When the first personal image is received from the member terminal of the first member and a request for manufacturing a customized gold bar according to the first standard among the plurality of gold bar standards is received, authentication of the member terminal of the first member is performed. generating an authentication event to perform;
When the authentication event occurs, a first one-time authentication number is generated based on the first OTP generation function, and then the first one-time authentication number is a dividend number and the first authentication number m is a divisor (Modulo). ) by performing an operation to calculate a first operation 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, the second authentication number k calculating a second operation value y by performing a modulo operation with a divisor of ;
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
If 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;
including,
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 the memory of the member terminal of the first member, and the gold asset management 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 dividend By performing a modulo operation of dividing the first authentication number m as a divisor, the first operation value x is calculated, 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 a component value located in (x+1) row (y+1) column in the substitution matrix as the first feedback value based on the first operation value x and the second operation value y, the first feedback value and transmitting a value to the gold asset management server. 7. The method of claim 6,
The member terminal of the first member is
When the first digital gold token is received from the gold asset management server and verification of the first digital gold token is requested from the gold asset management server, the electronic signature value included in the first digital gold token is retrieved from the gold asset management server. Decryption is performed with the public key distributed in advance in the member terminal of the first member, and the decrypted value is compared with the hash value of the asset information included in the first digital gold token to see if both values match each other When it is confirmed that the first digital gold token is verified, the verification complete message is generated and then the verification complete message is transmitted to the gold asset management server. how it works. 7. The method of claim 6,
When the asset information of the gold held by the first member is updated, the updated data of the asset information about the gold held by the first member is applied as an input to the hash function to generate a first hash value; , generating a first electronic signature value by encrypting the first hash value with the private key, generating a second digital gold token including the first hash value and the first electronic signature value, and then storing it in the gold information database replacing the first digital gold token corresponding to the stored asset information of the first member with the second digital gold token;
Method of operation of the gold asset management server further comprising. delete delete A computer-readable recording medium recording a computer program for executing the method of any one of claims 6 to 8 through combination with a computer. delete

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