KR102302945B1 - Gold wealth management server that enables gold bar purchase by interlocking with a gold bar vending machine where multiple gold bars are stored based on gold and digital gold tokens, and operating method thereof - Google Patents

Abstract

Disclosed are a gold asset management server enabling gold bar purchase by linking with a gold bar vending machine where multiple gold bars are stored based on gold and digital gold tokens, and an operating method thereof. And the gold asset management server supports a member holding gold to purchase gold bars sold at a specific gold bar vending machine using the gold the member own. Also, the server comprises: a private key storage unit; a gold information database; a token transmission unit; a payment authorization processing unit; and an asset renewal unit.

Description

A gold asset management server that enables the purchase of gold bars by linking with a gold bar vending machine in which a plurality of gold bars are stored based on gold and digital gold tokens and its operation method {GOLD WEALTH MANAGEMENT SERVER THAT ENABLES GOLD BAR PURCHASE BY INTERLOCKING WITH A GOLD BAR VENDING MACHINE WHERE MULTIPLE GOLD BARS ARE STORED BASED ON GOLD AND DIGITAL GOLD TOKENS, AND OPERATING METHOD THEREOF}

The present invention relates to a gold asset management server that enables the purchase of gold bars by interworking with a gold bar vending machine in which a plurality of gold bars are stored based on gold and digital gold tokens, and a method of operating the same.

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

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.

Usually, users who hold gold as an asset often only have ownership of gold, not physical gold. These users may want to exchange their gold assets for physical gold, but in order to convert their gold assets into physical gold, they have to go through a rather complicated procedure, such as visiting a gold exchange.

Therefore, it is necessary to introduce a service that supports users to easily purchase real gold by utilizing their gold assets. In particular, since interest in gold bars is increasing recently, it may be possible to consider introducing a service that supports users to purchase a predetermined gold bar by utilizing their gold assets.

In this regard, if a service is introduced that allows users to purchase real gold bars of a certain size from a predetermined gold bar vending machine using their gold, users who have gold assets can easily purchase gold bars. , the user's convenience may be promoted.

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 utilizes it in the data transmission process so that the original data of the important information is not leaked has been widely used.

Therefore, it is necessary to study the service technology related to the gold asset management server that supports the purchase of gold bars from vending machines using gold, and at the same time, it is necessary to study the asset information of each member holding gold from the gold asset management server. It is necessary to study technology that can increase the reliability and safety of gold bar purchases through vending machines by digital tokenization and management.

An object of the present invention is to provide a gold asset management server that supports a member holding gold to purchase gold bars sold at a specific gold bar vending machine using the gold they own, and a method of operating the same.

In addition, the gold asset management server and its operating method 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

The gold asset management server that enables the purchase of gold bars in conjunction with a gold bar vending machine in which a plurality of gold bars are stored based on gold and digital gold tokens according to an embodiment of the present invention is a preset private key for electronic signature - the above The private key and the public key constituting the key pair are pre-distributed to the gold bar vending machine - a private key storage unit in which is stored, member identification information of a plurality of members, and gold held by each of the plurality of members - the above The purity of gold held by each of the plurality of members is the same - Asset information about - The asset information means information about the weight of gold each of the plurality of members holds - and the plurality of A digital gold token corresponding to the asset information of each of the 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, and the hash value The digital signature value generated by encryption with the private key is included - the gold information database in which this is stored, the two-dimensional code for recognizing the gold bar vending machine from the member terminal of the first member who is one of the plurality of members When the issuance request is received, a code transmission unit that generates the two-dimensional code including the member identification information of the first member and transmits the two-dimensional code to the member terminal of the first member; After recognizing the two-dimensional code displayed through the member terminal of a member to the gold bar vending machine, a purchase command for purchasing a first gold bar among the plurality of gold bars being sold through the gold bar vending machine is automatically issued to the gold bar. Upon approval of the vending machine, when information on the weight of the first gold bar and member identification information of the first member are received from the gold bar vending machine along with a request for approval of payment for the first gold bar, the gold information database is The gold bar is automatically extracted by extracting the first digital gold token corresponding to the member identification information of the first member. A token transmission unit that transmits to the vending machine, a verification completion message indicating that verification of the first digital gold token is completed from the gold bar vending machine - The verification completion message is a message indicating that the first digital gold token is received by the gold bar vending machine. Then, the value obtained by decrypting the digital signature value included in the first digital gold token by the gold bar vending machine with the public key distributed in advance in the gold bar vending machine and asset information included in the first digital gold token When it is confirmed that the hash values for the data match each other as a result of comparing the hash values, it means a message generated to indicate that the verification of the first digital gold token has been completed - is received, After the authentication of the member terminal of the first member is performed, the weight of 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. It is checked whether the weight of the first gold bar is exceeded, and when it is confirmed that the weight of the gold held by the first member exceeds the weight of the first gold bar, payment approval processing is completed for the first gold bar, A payment approval processing unit that transmits a payment approval completion message for the first gold bar to the gold bar vending machine, and the first member owns in the gold asset information stored in the gold information database and an asset update unit for updating asset information on gold held by the first member by subtracting the weight of the gold by the weight of the first gold bar.

In addition, according to an embodiment of the present invention, the operating method of the gold asset management server that enables the purchase of gold bars by interworking with a gold bar vending machine in which a plurality of gold bars are stored based on gold and digital gold tokens is a dictionary for electronic signature. Maintaining a private key storage unit in which a set private key - the private key and the public key constituting the key pair is pre-distributed to the gold bar vending machine - is stored, member identification information of a plurality of members, and the plurality of members Asset information on the gold each held - the purity of gold held by each of the plurality of members is the same - The asset information is information on the weight of gold held by each of the plurality of members means - and a digital gold token corresponding to the asset information of each of the plurality of members - The digital gold token includes a hash generated by applying data of the asset information of each of the plurality of members as an input to a preset hash function value, and the hash value includes an electronic signature value generated by encryption with the private key - maintaining a stored gold information database, from a member terminal of a first member who is one of the plurality of members When a request for issuing a 2D code for recognition in the gold bar vending machine is received, the 2D code including member identification information of the first member is generated and the 2D code is transmitted to the member terminal of the first member After the first member recognizes the two-dimensional code displayed through the member terminal of the first member to the gold bar vending machine, a first gold bar among the plurality of gold bars being sold through the gold bar vending machine Upon application of a purchase order to the gold bar vending machine for purchasing is received, the first corresponding to the member identification information of the first member from the gold information database extracting a digital gold token and transmitting it to the gold bar vending machine; a verification completion message indicating that verification of the first digital gold token is completed from the gold bar vending machine - The verification completion message is transmitted to the gold bar vending machine. After the 1 digital gold token is received, the gold bar vending machine decrypts the digital signature value included in the first digital gold token with the public key pre-distributed to the gold bar vending machine, and the first digital gold token As a result of comparing the hash values for the data of the asset information included in the Meaning - When is received, after authentication of the member terminal of the first member is performed, the first member holds the gold asset information stored in the gold information database stored in the gold information database. It is checked whether the weight of the gold being used exceeds the weight of the first gold bar, and when it is confirmed that the weight of the gold held by the first member exceeds the weight of the first gold bar, the first gold bar transmitting a payment approval completion message for the first gold bar to the gold bar vending machine by completing payment approval processing; and updating the asset information of the gold held by the first member by subtracting the weight of the gold held by the first member by the weight of the first gold bar.

The present invention can provide a gold asset management server that supports a member holding gold to purchase gold bars sold at a specific gold bar vending machine using the gold they own, and a method of operating the same.

In addition, the gold asset management server and its operating method 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. While describing each drawing, like reference numerals are used for similar components, and unless otherwise defined, all terms used in this specification, including technical or scientific terms, refer to those of ordinary skill in the art to which the present invention belongs. It has the same meaning as is commonly understood by those who have it.

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

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

1 is a diagram 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 purchase of gold bars by interworking with the gold bar vending machine 140 in which a plurality of gold bars are stored based on gold and digital gold tokens. It includes a key storage unit 111 , a gold information database 112 , a code transmission unit 113 , a token transmission unit 114 , a payment approval processing unit 115 , and an asset update unit 116 .

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 distributed in advance in the gold bar vending machine 140 .

The gold information database 112 stores member identification information of a 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 identification information means identification information such as the name, contact information, address of each member, or 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 refers to 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 ... ... ...

When a request for issuing a two-dimensional code for recognition by the gold bar vending machine 140 is received from the member terminal 130 of a first member who is one of the plurality of members, the code transmission unit 113 receives the first The two-dimensional code including the member identification information of the member is generated and the two-dimensional code is transmitted to the member terminal 130 of the first member.

Here, the two-dimensional code means a code capable of inserting information such as various characters on a two-dimensional image pattern, such as a 'QR (Quick Response) code'.

The token transmission unit 114 allows the first member to recognize the two-dimensional code displayed through the member terminal 130 of the first member in the gold bar vending machine 140 and then sells it through the gold bar vending machine 140 . When a purchase command for purchasing a first gold bar from among the plurality of gold bars is applied to the gold bar vending machine 140 , the first gold bar together with a request for payment approval for the first gold bar from the gold bar vending machine 140 . When the weight information and member identification information of the first member are received, the gold bar vending machine 140 extracts a first digital gold token corresponding to the member identification information of the first member from the gold information database 112 . send to

At this time, when the first digital gold token is received from the gold asset management server 110 , the gold bar vending machine 140 pre-distributes the electronic signature value included in the first digital gold token to the gold bar vending machine 140 . The first digital gold token is decrypted with the public key, and the decrypted value is compared with the hash value of the asset information included in the first digital gold token. After generating a verification completion message indicating that verification of the gold token has been completed, the verification completion message may be transmitted to the gold asset management server 110 .

When the verification completion message indicating that verification of the first digital gold token is completed is received from the gold bar vending machine 140 , the payment approval processing unit 115 performs authentication of the member terminal 130 of the first member. Then, in the asset information of the gold held by the first member stored in the gold information database 112, it is checked whether the weight of the gold held by the first member exceeds the weight of the first gold bar. , when it is confirmed that the weight of the gold held by the first member exceeds the weight of the first gold bar, payment approval processing is completed for the first gold bar, and the first gold bar vending machine 140 is sent to the first gold bar. Sends a payment approval completion message for the gold bar.

In this way, when the payment approval completion message for the first gold bar is transmitted to the gold bar vending machine 140 by the payment approval processing unit 115 , the asset updater 116 stores the second value stored in the gold information database 112 . 1 By subtracting the weight of the gold held by the first member from the asset information of the gold held by the first member by the weight of the first gold bar, the asset information of the gold held by the first member is updated .

Hereinafter, operations of the code transmission unit 113 , the token transmission unit 114 , the payment approval processing unit 115 , and the asset update unit 116 will be described in detail by way of example.

First, it is assumed that the first member is 'member 1' in the gold information database 112 as shown in Table 1, and the weight of the first gold bar is '10 g'. At this time, the code transmitting unit 113 receives a request for issuing the two-dimensional code for recognizing the gold bar vending machine 140 from the member terminal 130 of 'Member 1', which is one of the plurality of members, The 2D code including the member identification information of 'Member 1' may be generated and the 2D code may be transmitted to the member terminal 130 of 'Member 1'.

At this time, according to an embodiment of the present invention, the gold bar vending machine 140 is composed of a gold bar storage unit storing a plurality of gold bars, a code recognition unit for recognizing the two-dimensional code, and a gold bar discharge unit discharging the gold bars. can

Here, the plurality of gold bars having various weights such as '1g', '2g', '10g', '100g', and '1kg' may be stored in the gold bar storage unit.

In this regard, in order for 'member 1' to purchase the first gold bar among the plurality of gold bars provided in the gold bar vending machine 140, the 2 displayed through the member terminal 130 of 'member 1' When the dimension code is recognized by the code recognition unit and a purchase button for purchasing the first gold bar is pressed, a purchase command for the first gold bar may be applied to the gold bar vending machine 140, and at this time, the gold bar automatic The vending machine 140 recognizes the two-dimensional code through the code recognition unit, extracts member identification information of 'member 1' from the two-dimensional code, and then sends a payment approval request for the first gold bar to the first gold bar. Weight information and member identification information of 'member 1' may be transmitted to the gold asset management server 110 .

In this way, when the gold asset management server 110 receives the information on the weight of the first gold bar and the member identification information of 'Member 1' from the gold bar vending machine 140 along with a request for payment approval for the first gold bar, The token transmitter 114 may extract 'digital gold token 1' corresponding to member identification information of 'member 1' from the gold information database 112 as shown in Table 1 above and transmit it to the gold bar vending machine 140 .

At this time, when the 'digital gold token 1' is received from the gold asset management server 110, the gold bar vending machine 140 distributes the electronic signature value included in the 'digital gold token 1' to the gold bar vending machine 140 in advance. It can be decrypted with the public key in which it is made, and when it is confirmed that the decrypted value and the hash value of the asset information data included in 'Digital Gold Token 1' match each other, if it is confirmed that the two values match each other, ' After generating a verification completion message indicating that verification of the digital gold token 1' is completed, the verification completion message may be transmitted to the gold asset management server 110 .

At this time, when the payment approval processing unit 115 receives the verification completion message indicating that verification of 'Digital Gold Token 1' has been completed from the gold bar vending machine 140, After authentication, in the asset information on gold held by 'Member 1' stored in the gold information database 112 as shown in Table 1 above, '100g', which is the weight of gold held by 'Member 1' It can be checked whether the weight of the first gold bar exceeds '10g'.

At this time, when it is confirmed by the payment approval processing unit 115 that '100g', which is the weight of gold held by 'Member 1', exceeds '10g', which is the weight of the first gold bar, the payment approval processing unit 115 is After completing the payment approval processing for the first gold bar, a payment approval completion message for the first gold bar may be transmitted to the gold bar vending machine 140 .

Then, when a payment approval completion message for the first gold bar is received from the gold asset management server 110, the gold bar vending machine 140 discharges the first gold bar stored in the gold bar storage unit to the gold bar discharge unit. can

Thereafter, the asset update unit 116 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 weight of the first gold bar by '10g', asset information on gold held by 'member 1' can be updated as shown in Table 2 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 ... ... ...

At this time, according to an embodiment of the present invention, the gold asset management server 110 may further include a token update unit 117 .

When the asset information of the gold held by the first member is updated by the asset update unit 116 , the token update unit 117 is updated data of the asset information regarding 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 above example, when the asset information on gold held by 'Member 1' is updated by the asset update unit 116, the token update unit 117 is updated as shown in Table 2 above. 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 the first hash value is encrypted with the private key to generate a first electronic signature value, , 'Member 1' stored in the gold information database 112 as shown in Table 2 above after generating 'Digital Gold Token 3', which is a second digital gold token including the first hash value and the first digital signature value The 'digital gold token 1' that is the first digital gold token corresponding to the asset information of ' may be replaced with the 'digital gold token 3' that is the second digital gold token 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 3 Member identification information of Member 2 Weight of gold: 50g Digital Gold Token 2 ... ... ...

According to an embodiment of the present invention, the payment approval processing unit 115 completes the payment approval processing for the first gold bar before transmitting the payment approval completion message for the first gold bar to the gold bar vending machine 140 . As a configuration for authenticating the member terminal 130 of the first member, the OTP storage unit 118, the number storage unit 119 for authentication, the authentication event generation unit 120, the calculation value calculation unit 121, the random value It may include a generating unit 122 , a feedback value requesting unit 123 , a checking unit 124 , and an authentication completion unit 125 .

The OTP storage unit 118 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 119, 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 verification completion message is received from the gold bar vending machine 140 , the authentication event generating unit 120 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 121 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, and 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 the second one-time authentication number is converted to 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 122 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 123 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, '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 calculating unit 121 performs a modulo operation in which '12341234', which is the first one-time authentication number, 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 122 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 123 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 generation function, the second OTP generation function, 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.

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 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, the first one-time authentication number '12341234' is generated based on the first OTP generation function stored in the memory of the member terminal 130 of the first member, and then '12341234' 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.

And, 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 row 3, column 2' 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 124 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 125 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(124)에 의해 상기 제1 피드백 값인 'R'이 상기 제1 랜덤 값인 'R'과 동일한 것으로 확인되면, 인증 완료부(125)는 제1 회원의 회원 단말(130)에 대한 인증을 완료할 수 있다.For example, according to the above-described example, the confirmation unit 124 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 confirmation unit 124 that 'R', which is the first feedback value, is the same as 'R', which is the first random value, the authentication completion unit 125 provides information on the member terminal 130 of the first member. authentication can be completed.

In this way, the payment approval processing unit 115 includes the OTP storage unit 118 , the authentication number storage unit 119 , the authentication event generation unit 120 , the calculation value calculation unit 121 , the random value generation unit 122 , and the feedback. After the authentication of the member terminal 130 of the first member is performed through the value requesting unit 123, the confirmation unit 124, and the authentication completion unit 125, the authentication of the member terminal 130 of the first member is performed. Upon completion, the payment approval process for the first gold bar is completed and a payment approval completion message for the first gold bar is transmitted to the gold bar vending machine 140, thereby allowing the payment process for the first gold bar to proceed. .

2 is a flowchart illustrating an operation method of a gold asset management server that enables a gold bar purchase in conjunction with a gold bar vending machine in which a plurality of gold bars are stored based on gold and digital gold tokens 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 in the gold bar vending machine) is maintained.

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

In step S230, when a request for issuing a two-dimensional code for recognition in the gold bar vending machine is received from the member terminal of the first member, which is one of the plurality of members, the member identification information of the first member is received. The two-dimensional code is generated and the two-dimensional code is transmitted to the member terminal of the first member.

In step S240, after the first member recognizes the two-dimensional code displayed through the member terminal of the first member to the gold bar vending machine, the second member of the plurality of gold bars sold through the gold bar vending machine 1 When a purchase order for purchasing a gold bar is applied to the gold bar vending machine, along with a request for approval of payment for the first gold bar from the gold bar vending machine, information on the weight of the first gold bar and a member of the first member When the identification information is received, a first digital gold token corresponding to the member identification information of the first member is extracted from the gold information database and transmitted to the gold bar vending machine.

In step S250, a verification completion message indicating that verification of the first digital gold token is completed from the gold bar vending machine (the verification completion message is transmitted after the first digital gold token is received by the gold bar vending machine) The value obtained by decrypting the digital signature value included in the first digital gold token by the gold bar vending machine with the public key pre-distributed to the gold bar vending machine and the data of the asset information included in the first digital gold token When it is confirmed that the hash values match each other as a result of comparing the hash values, it means a message generated to indicate that the verification of the first digital gold token is completed) is received, the first After the member's member terminal is authenticated, the weight of the gold held by the first member in the asset information of the gold held by the first member stored in the gold information database is determined by the first gold bar. check whether the weight of the gold bar exceeds the weight of A payment approval completion message for the first gold bar is transmitted to the vending machine.

In step S260, the weight of the gold held by the first member is subtracted by the weight of the first gold bar from the asset information of the gold held by the first member stored in the gold information database. The first member updates the asset information for gold held.

At this time, according to an embodiment of the present invention, the gold bar vending machine is composed of a gold bar storage unit storing the plurality of gold bars, a code recognition unit for recognizing the two-dimensional code, and a gold bar discharge unit discharging the gold bars, As the first member recognizes the two-dimensional code displayed through the member terminal of the first member to the code recognition unit, and presses the purchase button for purchasing the first gold bar, When a purchase order is applied to the gold bar vending machine, the two-dimensional code is recognized through the code recognition unit, member identification information of the first member is extracted from the two-dimensional code, and a payment approval request for the first gold bar is performed; Together, the information on the weight of the first gold bar and the member identification information of the first member are transmitted to the gold asset management server, and when a payment approval completion message for the first gold bar is received from the gold asset management server, the The first gold bar stored in the gold bar storage unit may be discharged to the gold bar discharge unit.

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 of the first member is updated. applying data of asset information to the hash function as an input to generate a first hash value, encrypting the first hash value with the private key to generate a first electronic signature value, the first hash value and the 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 S250, an OTP storage unit in which a preset first OTP generating function and a preset second OTP generating function shared with the member terminal of the first member in advance 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; generating an authentication event for performing authentication of the member terminal of the first member when the verification completion message is received from the gold bar vending machine; the authentication When an event occurs, a first one-time authentication number is generated based on the first OTP generation function, and then a modulo operation is performed using the first one-time authentication number as a dividend and the first authentication number m as a divisor. , a module that calculates a first operation value x, generates a second one-time authentication number based on the second OTP generation function, and divides the second one-time authentication number as a dividend and the second authentication number k as a divisor Calculating a second calculated value y by performing an operation with +1) generating a permutation matrix having a size of mxk by replacing the component located in the row (y+1) column with the first random value, and transmitting the permutation matrix to the member terminal of the first member, requesting transmission of a feedback value corresponding to the permutation matrix to a member terminal of a first member, a first feedback value (the first feedback value is The first OTP generating function, the second OTP generating function, and the first authentication number stored in advance in the memory of the member terminal of the first member in the member terminal of the first member After the first calculated value x and the second calculated value y are calculated based on the character m and the second number k for authentication, the component value located in the (x+1) row (y+1) column in the substitution matrix is the extracted and generated feedback value) 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 first It may include the step of completing the member's authentication for the member terminal.

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 pre-stored, 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 , the first operation value x is calculated 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, 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, the y second authentication number k By performing a modulo operation with a divisor of , the second operation value 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, since the method of operating 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 , a more detailed description thereof will be omitted. do it with

According to an embodiment of the present invention, a method of operating a gold asset management server that enables the purchase of gold bars by linking with a gold bar vending machine in which a plurality of gold bars are stored based on gold and digital gold tokens is executed through combination with a computer. may be implemented as a computer program stored in a storage medium for

In addition, according to an embodiment of the present invention, a method of operating a gold asset management server that enables the purchase of gold bars in conjunction with a gold bar vending machine in which a plurality of gold bars are stored based on gold and digital gold tokens according to an embodiment of the present invention is performed through various computer means. It may be implemented in the form of executable program instructions 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 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: code transmission unit
114: token transmission unit 115: payment approval processing unit
116: asset update unit 117: token update unit
118: OTP storage 119: number storage for authentication
120: authentication event generation unit 121: calculation value calculation unit
122: random value generation unit 123: feedback value request unit
124: confirmation unit 125: authentication completion unit
130: member terminal of the first member
140: gold bar vending machine

Claims (12)

In the gold asset management server that enables the purchase of gold bars by linking with a gold bar vending machine in which a plurality of gold bars are stored based on gold and digital gold tokens,
a private key storage unit storing a preset private key for electronic signature, wherein the private key and the public key constituting the key pair are pre-distributed to the gold bar vending machine;
Member identification information of a 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 means information on the weight of gold held by each member - and a digital gold token corresponding to asset information of each of the plurality of members - The digital gold token includes data of asset information of each of the plurality of members a hash value generated by being applied as an input to a preset hash function, and an electronic signature value generated by encrypting the hash value with the private key - a gold information database in which this is stored;
When a request for issuing a 2D code for recognition in the gold bar vending machine is received from the member terminal of the first member, which is one of the plurality of members, the 2D code including the member identification information of the first member is received. a code transmission unit for generating and transmitting the two-dimensional code to the member terminal of the first member;
After the first member recognizes the two-dimensional code displayed through the member terminal of the first member to the gold bar vending machine, purchasing a first gold bar from among the plurality of gold bars being sold through the gold bar vending machine When a purchase order is applied to the gold bar vending machine, information on the weight of the first gold bar and member identification information of the first member are received from the gold bar vending machine along with a request for approval of payment for the first gold bar. a token transmitter for extracting a first digital gold token corresponding to member identification information of the first member from the gold information database and transmitting the extracted first digital gold token to the gold bar vending machine;
A verification completion message indicating that the verification of the first digital gold token is completed from the gold bar vending machine. The value obtained by decrypting the digital signature value included in the first digital gold token with the public key pre-distributed to the gold bar vending machine 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 both values are found to match each other, it means a message generated to indicate that the verification of the first digital gold token has been completed. After proceeding, it is checked whether the weight of the gold held by the first member exceeds the weight of the first gold bar in the asset information of the gold held by the first member stored in the gold information database, When it is confirmed that the weight of the gold held by the first member exceeds the weight of the first gold bar, payment approval processing is completed for the first gold bar, and the payment of the first gold bar is performed using the gold bar vending machine. Payment approval processing unit for transmitting a payment approval completion message; and
By deducting the weight of the gold held by the first member by the weight of the first gold bar from the asset information of the gold held by the first member stored in the gold information database, the first member holds Asset update department that updates asset information for gold
A gold asset management server comprising a. According to claim 1,
The gold bar vending machine
It consists of a gold bar storage unit storing the plurality of gold bars, a code recognition unit for recognizing the two-dimensional code, and a gold bar discharge unit discharging gold bars, wherein the first member is displayed through the member terminal of the first member. When the two-dimensional code is recognized by the code recognition unit and a purchase button for purchasing the first gold bar is pressed, and a purchase command for the first gold bar is applied to the gold bar vending machine, the code recognition unit After recognizing the two-dimensional code and extracting member identification information of the first member from the two-dimensional code, information on the weight of the first gold bar and information on the weight of the first member along with a payment approval request for the first gold bar When member identification information is transmitted to the gold asset management server, and a payment approval completion message for the first gold bar is received from the gold asset management server, the first gold bar stored in the gold bar storage unit is transferred to the gold bar discharge unit. Gold asset management server, characterized in that the discharge. According to claim 1,
When the asset information of the gold held by the first member is updated by the asset update unit, the updated data of the asset information about the gold held by the first member is applied as an input to the hash function. generating a first hash value, encrypting the first hash value with the private key to generate a first electronic signature value, and generating a second digital gold token including the first hash value and the first electronic signature value 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
A gold asset management server further comprising a. According to claim 1,
The payment approval processing unit
an OTP storage unit storing a preset first OTP (One Time Password) generating function and a preset second OTP generating function that are pre-shared with the member terminal of the first member;
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 on the first member when the verification completion message is received from the gold bar vending machine;
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, and the first authentication number m is a divisor. ) 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 calculator 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;
A permutation matrix having a size of mxk is generated by substituting the first random value for a component located in (x+1) row (y+1) column in the random matrix, 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 first member
A gold asset management server comprising a. 5. The method of claim 4,
The member terminal of the first member is
The first OTP generation function, the second OTP generation 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 subtracted 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 is 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. A method of operating a gold asset management server that enables the purchase of gold bars by linking with a gold bar vending machine in which a plurality of gold bars are stored based on gold and digital gold tokens, the method comprising:
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 the gold bar vending machine;
Member identification information of a 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 means information on the weight of gold held by each member - and a digital gold token corresponding to asset information of each of the plurality of members - The digital gold token includes data of asset information of each of the plurality of members a hash value generated by being applied 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;
When a request for issuing a 2D code for recognition in the gold bar vending machine is received from the member terminal of the first member, which is one of the plurality of members, the 2D code including the member identification information of the first member is received. generating and transmitting the two-dimensional code to the member terminal of the first member;
After the first member recognizes the two-dimensional code displayed through the member terminal of the first member to the gold bar vending machine, purchasing a first gold bar from among the plurality of gold bars being sold through the gold bar vending machine When a purchase order is applied to the gold bar vending machine, information on the weight of the first gold bar and member identification information of the first member are received from the gold bar vending machine along with a request for approval of payment for the first gold bar. , extracting a first digital gold token corresponding to member identification information of the first member from the gold information database and transmitting the first digital gold token to the gold bar vending machine;
A verification completion message indicating that the verification of the first digital gold token is completed from the gold bar vending machine. The value obtained by decrypting the digital signature value included in the first digital gold token with the public key pre-distributed to the gold bar vending machine 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 both values are found to match each other, it means a message generated to indicate that the verification of the first digital gold token has been completed. After proceeding, it is checked whether the weight of the gold held by the first member exceeds the weight of the first gold bar in the asset information of the gold held by the first member stored in the gold information database, When it is confirmed that the weight of the gold held by the first member exceeds the weight of the first gold bar, payment approval processing is completed for the first gold bar, and the payment of the first gold bar is performed using the gold bar vending machine. transmitting a payment approval completion message; and
By deducting the weight of the gold held by the first member by the weight of the first gold bar from the asset information of the gold held by the first member stored in the gold information database, the first member holds Steps to update the asset information for the gold you are doing
A method of operation of a gold asset management server comprising a. 7. The method of claim 6,
The gold bar vending machine
It consists of a gold bar storage unit storing the plurality of gold bars, a code recognition unit for recognizing the two-dimensional code, and a gold bar discharge unit discharging gold bars, wherein the first member is displayed through the member terminal of the first member. When the two-dimensional code is recognized by the code recognition unit and a purchase button for purchasing the first gold bar is pressed, and a purchase command for the first gold bar is applied to the gold bar vending machine, the code recognition unit After recognizing the two-dimensional code and extracting member identification information of the first member from the two-dimensional code, information on the weight of the first gold bar and information on the weight of the first member along with a payment approval request for the first gold bar When member identification information is transmitted to the gold asset management server and a payment approval completion message for the first gold bar is received from the gold asset management server, the first gold bar stored in the gold bar storage unit is transferred to the gold bar discharge unit. Method of operation of the gold asset management server, characterized in that the discharge. 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 a. 7. The method of claim 6,
The step of transmitting the payment approval completion message 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 authenticating the first member when the verification completion message is received from the gold bar vending machine;
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, and the first authentication number m is a divisor. ) 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;
A permutation matrix having a size of mxk is generated by substituting the first random value for a component located in (x+1) row (y+1) column in the random matrix, 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
Completing authentication for the first member when it is confirmed that the first feedback value is equal to the first random value
A method of operation of a gold asset management server comprising a. 10. The method of claim 9,
The member terminal of the first member is
The first OTP generation function, the second OTP generation 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 subtracted 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 is 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. 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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