KR102417839B1 - Cloud-based offline commerce platform server that enables offline commerce based on gold and digital gold token, and operating method thereof - Google Patents

Abstract

Disclosed are an offline commerce platform server that enables offline commerce based on gold and digital gold tokens and a method of operating the same. The present invention relates to an offline commerce platform server that supports a member holding gold to purchase products sold at a specific offline affiliate store using the gold they own, and to an offline commerce platform server and an operating method thereof.

Description

CLOUD-BASED OFFLINE COMMERCE PLATFORM SERVER THAT ENABLES OFFLINE COMMERCE BASED ON GOLD AND DIGITAL GOLD TOKEN, AND OPERATING METHOD THEREOF}

The present invention relates to an offline commerce platform server that enables offline commerce based on gold and digital gold tokens and a method of operating the same.

Recently, in an unstable economic environment, 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.

In this way, although gold is widely distributed and evaluated as a safe asset, a platform for purchasing products using gold is not provided.

In this regard, the introduction of an offline commerce platform that supports members to purchase products at offline merchants by using their gold may be considered.

However, since such an offline commerce platform may cause data leakage related to gold, it is necessary to apply a predetermined security technology.

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 offline commerce platform that supports purchasing products at offline merchants using gold, and at the same time, it is necessary to study the asset information of each member who holds gold in the offline commerce platform as a digital token. It is necessary to study the technology that can increase the reliability and safety of payment by managing it.

An object of the present invention is to provide an offline commerce platform server that supports a member holding gold to purchase products sold at a specific offline affiliate store using the gold they own, and an offline commerce platform server and an operating method thereof.

In addition, the offline commerce platform 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 offline commerce platform server that enables offline commerce based on gold and digital gold tokens according to an embodiment of the present invention includes a preset private key for electronic signature - the public key constituting the private key and the key pair is a plurality of offline Pre-distributed to each POS (Point of Sale) terminal of the affiliated stores - 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 plurality of The purity of gold held by each member 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 members A digital gold token corresponding to each asset information - The digital gold token includes a hash value generated by applying the data of each asset information of the plurality of members as an input to a preset hash function, and the hash value is the private key Encrypted and generated digital signature value is included - The gold information database in which this is stored, from the member terminal of the first member who is one of the plurality of members, the first offline affiliated store which is any one of the plurality of offline affiliated stores When a request for issuing a two-dimensional code for recognizing the POS terminal provided in the After the two-dimensional code received at the member terminal of the first member is recognized by the POS terminal of the first offline affiliated store, a code transmission unit that transmits to As any one of the barcodes attached to the first product is recognized by the POS terminal of the first offline affiliated store and at the same time a payment command for the first product is applied to the POS terminal of the first offline affiliated store, the first offline affiliated store With a request for payment approval for the first product from the POS terminal of When product information on the product, information on the amount of the first product, and member identification information of the first member are received, a first digital gold token corresponding to the member identification information of the first member is obtained from the gold information database. A token transmission unit extracting and transmitting the extracted POS terminal to the POS terminal of the first offline merchant, a verification completion message indicating that verification of the first digital gold token has been completed from the POS terminal of the first offline merchant - The verification completion message is the After the first digital gold token is received by the POS terminal of the first offline affiliated store, the POS terminal of the first offline affiliated store converts the electronic signature value included in the first digital gold token to the POS terminal of the first offline affiliated store As a result of comparing the hash value of the asset information data included in the first digital gold token with the value decrypted with the public key distributed in advance in This means a message generated to indicate that the verification of the first digital gold token has been completed. When − is received, information on the weight of gold corresponding to the amount of the first product is accessed by accessing a pre-specified gold price information server. When the weight information confirmation unit to check and information on the weight of gold corresponding to the price of the first product are confirmed, the first member authenticates the member terminal, and then pays the price of the first product A payment approval processing unit that completes approval processing and transmits a payment approval completion message for the first product to the POS terminal of the first offline affiliated store and gold stored in the gold information database of the first member Asset update that updates asset information on gold held by the first member by subtracting the weight of gold held by the first member from the asset information for the first product by the weight of gold corresponding to the value of the first product includes wealth.

In addition, the operating method of the offline commerce platform server that enables offline commerce based on gold and digital gold tokens according to an embodiment of the present invention is a preset private key for electronic signature - public constituting the private key and key pair The key is pre-distributed to each of the POS terminals of a plurality of offline affiliated stores - maintaining a private key storage unit in which is stored, member identification information of a plurality of members, gold held by each of the plurality of members - the plurality The purity of gold held by each of the members is the same - Asset information on - The asset information means information on the weight of gold each of the plurality of members holds - and the plurality of members A digital gold token corresponding to each of the asset information - 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 is the individual The digital signature value generated by encryption with the key is included - maintaining the stored gold information database, from the member terminal of the first member, one of the plurality of members, to any one of the plurality of offline affiliated stores When a request for issuing a two-dimensional code for recognizing the POS terminal provided in the first offline affiliated store is received, the two-dimensional code including the member identification information of the first member is generated and the two-dimensional code is used as the second code. transmitting to the member terminal of the first member, after the two-dimensional code received in the member terminal of the first member is recognized by the POS terminal of the first offline affiliated store, a plurality of currently sold in the first offline affiliated store As the barcode attached to the first product, which is one of the products, is recognized by the POS terminal of the first offline affiliated store, and at the same time a payment command for the first product is applied to the POS terminal of the first offline affiliated store, the second 1 In addition to the payment approval request for the first product from the POS terminal of the offline merchant, When product information on the first product, information on the amount of the first product, and member identification information of the first member are received, a first digital corresponding to member identification information of the first member from the gold information database extracting a gold token and transmitting it to the POS terminal of the first offline affiliated store; a verification completion message indicating that verification of the first digital gold token is completed from the POS terminal of the first offline affiliated store - the verification completion message is After the first digital gold token is received by the POS terminal of the first offline affiliated store, the POS terminal of the first offline affiliated store converts the electronic signature value included in the first digital gold token to the POS of the first offline affiliated store. As a result of comparing the hash value of the asset information data included in the first digital gold token with the value decrypted with the public key distributed in advance in the terminal, it is confirmed that both values match each other, When - means a message generated to indicate that the verification of the first digital gold token is completed, information on the weight of gold corresponding to the amount of the first product by accessing a pre-specified gold price information server confirming, when information on the weight of gold corresponding to the price of the first product is confirmed, authentication of the member terminal of the first member is performed, and then payment approval processing for the amount of the first product by completing the steps of transmitting a payment approval completion message for the first product to the POS terminal of the first offline affiliated store, and from the asset information on gold held by the first member stored in the gold information database and updating the asset information of the gold held by the first member by subtracting the weight of gold held by the first member by the weight of gold corresponding to the price of the first product.

The present invention can provide an offline commerce platform server that supports a member holding gold to purchase a product sold at a specific offline affiliated store using the gold he or she owns, and a method of operating the same.

In addition, the offline commerce platform 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 an offline commerce platform server according to an embodiment of the present invention.
2 is a flowchart illustrating a method of operating an offline commerce platform server according to an embodiment of the present invention.

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

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

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

1 is a diagram showing the structure of an offline commerce platform server according to an embodiment of the present invention.

The offline commerce platform server 110 according to the present invention is a device that enables offline commerce based on gold and digital gold tokens, and includes a private key storage unit 111 , a gold information database 112 , and a code transmission unit 113 . , a token transmission unit 114 , a weight information confirmation unit 115 , a payment approval processing unit 116 , and an asset update 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 of the Point of Sale (POS) terminals of a plurality of offline affiliated stores.

The gold information database 112 stores member identification information of a plurality of members, asset information on gold held 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 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 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. has been

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 1's member identification information Weight of gold: 3.5g Digital Gold Token 1 Member identification information of Member 2 Weight of gold: 5.0 g Digital Gold Token 2 ... ... ...

The code transmission unit 113 is for recognizing the POS terminal provided in the first offline affiliated store, which is any one of the plurality of offline affiliated stores, from the member terminal 130 of the first member, which is one of the plurality of members. When the 2D code issuance request is received, the 2D code including the member identification information of the first member is generated and the 2D 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'.

After the two-dimensional code received by the member terminal 130 of the first member is recognized by the POS terminal 140 of the first offline affiliate store, the token transmitter 114 is configured to provide a plurality of products currently sold in the first offline affiliated store. The barcode attached to the first product, which is any one of the products of Accordingly, along with a request for payment approval for the first product from the POS terminal 140 of the first offline affiliated store, product information on the first product, information on the amount of the first product, and the member of the first member When the identification information is received, the first digital gold token corresponding to the member identification information of the first member is extracted from the gold information database 112 and transmitted to the POS terminal 140 of the first offline affiliated store.

Here, the barcode (Bar-Code) is a small black bar part composed of several on a small label printed on the product when purchasing and calculating a product at a local supermarket, large discount store, or department store, and the barcode includes a 3-digit country code, 4 It may include a 1-digit manufacturer code, a 5-digit product item code, and a 1-digit check digit.

At this time, when the POS terminal 140 of the first offline merchant receives the first digital gold token from the offline commerce platform server 110, the POS terminal 140 of the first offline merchant stores the electronic signature value included in the first digital gold token of the first offline merchant. Decrypted with the public key distributed in advance in the POS terminal 140, and compared whether the decrypted value matches the hash value of the asset information data included in the first digital gold token, and both values match each other If confirmed, a verification completion message indicating that verification of the first digital gold token is completed may be generated, and then the verification completion message may be transmitted to the offline commerce platform server 110 .

When the verification completion message indicating that verification of the first digital gold token has been completed is received from the POS terminal 140 of the first offline affiliated store, the weight information check unit 115 performs a pre-specified gold price information server 150 . to check the information on the weight of gold corresponding to the price of the first product.

That is, the weight information check unit 115 accesses the gold price information server 150 only when the verification completion message is received from the POS terminal 140 of the first offline affiliated store to access the gold corresponding to the amount of the first product. By checking the information on the weight of

In this way, when information on the weight of gold corresponding to the amount of the first product is confirmed by the weight information confirmation unit 115 , the payment approval processing unit 116 authenticates the first member to the member terminal 130 . After proceeding, the payment approval processing for the amount of the first product is completed, and a payment approval completion message for the first product is transmitted to the POS terminal 140 of the first offline affiliated store.

At this time, according to an embodiment of the present invention, when the information on the weight of gold corresponding to the amount of the first product is confirmed, the payment approval processing unit 116 authenticates the member terminal 130 of the first member. After the process, in the asset information of the gold held by the first member stored in the gold information database 112, the weight of the gold held by the first member corresponds to the amount of the first product. If it is confirmed that the weight of gold held by the first member exceeds the weight of gold corresponding to the value of the first product by checking whether the weight exceeds By completing , it is possible to transmit a payment approval completion message for the first product to the POS terminal 140 of the first offline affiliated store.

In this way, when the payment approval completion message for the first product is transmitted to the POS terminal 140 of the first offline affiliated store by the payment approval processing unit 116 , the asset update unit 117 stores it in the gold information database 112 . By deducting 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 gold corresponding to the amount of the first product, the first member holds Update the asset information for the gold you are doing.

Hereinafter, operations of the code transmission unit 113 , the token transmission unit 114 , the weight information verification unit 115 , the payment approval processing unit 116 , and the asset update unit 117 will be described in detail by way of example.

For example, the first member is referred to as 'member 1' in the gold information database 112 as shown in Table 1, the first offline affiliated store is called 'offline affiliated store 1', and the amount of the first product is '140,000 won'. Let's assume

At this time, from the member terminal 130 of 'Member 1', which is one of the plurality of members, issuance of a two-dimensional code for recognition by the POS terminal 140 of 'Offline Merchant 1', which is any one of the plurality of offline affiliated stores When the request is received by the offline commerce platform server 110, the code transmission unit 113 generates a two-dimensional code including the member identification information of 'member 1' and transmits the two-dimensional code to the member terminal 130 of the first member. ) can be transmitted.

At this time, according to an embodiment of the present invention, the POS terminal 140 of 'offline affiliated store 1' uses a code recognition unit (not shown) for recognizing the two-dimensional code and a barcode attached to each of the plurality of products. It may be configured with a barcode reader (not shown) for recognition.

In this regard, the two-dimensional code received in the member terminal 130 of 'Member 1' is recognized by the POS terminal 140 of 'Offline Merchant 1', and a plurality of products currently sold in 'Offline Merchant 1' Any one of the barcodes attached to the first product is recognized by the POS terminal 140 of the 'offline affiliated store 1', and a payment command for the first product is applied to the POS terminal 140 of the 'offline affiliated store 1' When done, the POS terminal 140 of 'offline affiliated store 1' recognizes the two-dimensional code through the code recognition unit, extracts member identification information of 'member 1' from the two-dimensional code, and uses the barcode reader to 1 After recognizing a barcode attached to a product, product information on the first product and information on '140,000 won', which is the price of the first product, are extracted from the barcode attached to the first product, and then added to the first product. The product information on the first product, information on '140,000 won,' which is the price of the first product, and member identification information of 'member 1' may be transmitted to the offline commerce platform server 110 together with a payment approval request for .

In this way, along with a request for payment approval for the first product from the POS terminal 140 of 'offline affiliated store 1', product information on the first product, information on '140,000 won', which is the price of the first product, and ' When the member identification information of 'member 1' is received by the offline commerce platform server 110, the token transmission unit 114 receives a 'corresponding to member identification information of 'member 1' from the gold information database 112 as shown in Table 1 above. The digital gold token 1' may be extracted and transmitted to the POS terminal 140 of the 'offline affiliated store 1'.

At this time, when the 'digital gold token 1' is received from the offline commerce platform server 110, the POS terminal 140 of the 'offline affiliated store 1' converts the electronic signature value included in the 'digital gold token 1' to the 'offline affiliate store 1'. It can be decrypted with the public key distributed in advance in the POS terminal 140 of ', and the decrypted value and the hash value of the asset information data included in 'Digital Gold Token 1' are compared to see if they match each other. When it is confirmed that the 'Digital Gold Token 1' is verified, a verification completion message indicating that verification of the 'Digital Gold Token 1' is completed may be generated, and then the verification completion message may be transmitted to the offline commerce platform server 110 .

When the verification complete message indicating that verification of 'Digital Gold Token 1' has been completed is received from the POS terminal 140 of 'Offline Merchant 1', the weight information check unit 115 sends the gold price information server 150 By accessing it, information on the weight of gold corresponding to '140,000 won', which is the price of the first product, can be checked.

If the information on the weight of gold corresponding to '140,000 won' confirmed from the gold price information server 150 is '2g', the payment approval processing unit 116 sends the member terminal 130 of 'member 1' After authentication is performed, in the asset information on gold held by 'Member 1' stored in the gold information database 112 as shown in Table 1 above, ' is the weight of gold held by 'Member 1' It can be checked whether 3.5g' exceeds '2g', which is the weight of gold corresponding to '140,000 won', which is the price of the first product.

At this time, by the payment approval processing unit 116 , '3.5g', which is the weight of gold held by 'member 1', exceeds '2g', which is the weight of gold corresponding to '140,000 won', which is the price of the first product. If it is confirmed that the payment approval processing unit 116 completes the payment approval processing for '140,000 won', which is the amount of the first product, the POS terminal 140 of the 'offline affiliated store 1' for the first product. A payment approval completion message may be transmitted.

In this way, when the payment approval completion message for the first product is transmitted to the POS terminal 140 of the 'offline affiliated store 1' by the payment approval processing unit 116, the asset updater 117 provides gold information as shown in Table 1 above. In the asset information of gold held by 'Member 1' stored in the database 112, '3.5 g', which is the weight of gold held by 'Member 1', is calculated as '140,000 won', which is the amount of the first product. By deducting '2g', which is the weight of gold corresponding to , 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 1's member identification information Weight of gold: 1.5 g Digital Gold Token 1 Member identification information of Member 2 Weight of gold: 5.0 g Digital Gold Token 2 ... ... ...

In this case, according to an embodiment of the present invention, the offline commerce platform server 110 may further include a token update unit 118 .

When asset information on gold held by the first member is updated by the asset update unit 117 by the asset update unit 117, the token update unit 118 includes updated data of asset information on gold held by the first member. is applied to the hash function as an input to generate a first hash value, and encrypts 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 117 by the token update unit 118 as shown in Table 2 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 the first hash value is encrypted with the private key to generate a first electronic signature value, , after generating 'digital gold token 3', which is a second digital gold token including the first hash value and the first electronic signature value, 'member 1' stored in the gold information database 112 as shown in Table 2 above. 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 1's member identification information Weight of gold: 1.5 g Digital Gold Token 3 Member identification information of Member 2 Weight of gold: 5.0 g Digital Gold Token 2 ... ... ...

According to an embodiment of the present invention, the payment approval processing unit 116 completes the payment approval processing for the amount of the first product, and approves the payment for the first product with the POS terminal 140 of the first offline affiliated store A configuration for authenticating the member terminal 130 of the first member before sending the completion message, the OTP storage unit 119, the number storage unit for authentication 120, the authentication event generation unit 121, and the calculation value calculation unit 122 , a random value generating unit 123 , a feedback value requesting unit 124 , a confirmation unit 125 , and an authentication completion unit 126 may be included.

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.

When the information on the weight of gold corresponding to the price of the first product is confirmed, the authentication event generating unit 121 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 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 in a (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, '12341243' is generated as the first one-time authentication number, '78907890' 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 '12341243', which is the first one-time authentication number, is a dividend, and the first authentication number '4' is a divisor. 1 operation value '3' can be calculated, and by performing a modulo operation in which the second one-time authentication number '78907890' is a dividend and the second authentication number '3' is a divisor, the second operation value '0' 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 '4 rows and 1 column', which is the (3+1) row (0+1) column 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 first member's member terminal 130 stores the first OTP generation function, the second OTP generation function, and the second OTP generation function in the memory of the member terminal 130 of the first member. The first number m for authentication and the second number k for authentication are pre-stored, and when the substitution matrix is received from the offline commerce platform server 110, it is stored in the memory of the member terminal 130 of the first member. After generating the first one-time authentication number based on the first OTP generation function, by performing a modulo operation in which the first one-time authentication number is a dividend and the first authentication number m is a divisor, the first Calculate the operation value x, generate the second one-time authentication number based on the second OTP generation function stored in the memory of the member terminal 130 of the first member, and then divide the second one-time authentication number , the second operation value y may be calculated by performing a modulo operation of dividing the second authentication number k as a divisor.

Thereafter, the member terminal 130 of the first member calculates the component value located in the (x+1) row (y+1) column in the substitution matrix based on the first calculated value x and the second calculated value y. After extracting as 1 feedback value, the first feedback value may be transmitted to the offline commerce platform 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 '12341243'을 생성한 후, 상기 제1 일회용 인증 번호인 '12341243'을 피제수로, 상기 제1 인증용 숫자 '4'를 제수로 하는 모듈로 연산을 수행함으로써, 상기 제1 연산 값 '3'을 산출할 수 있다.For example, according to the above-described example, the member terminal 130 of the first member is configured to store the first OTP generation function, the second OTP generation function, and the first authentication function in the memory of the member terminal 130 of the first member. The number '4' and the number '3' for the second authentication may be pre-stored, and the substitution matrix 'from the offline commerce platform server 110'

When ' is received, after generating '12341243', 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 '12341243' is a dividend and the first authentication number '4' is a divisor, the first operation value '3' may be calculated.

In addition, the member terminal 130 of the first member generates the second one-time authentication number '78907890' 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 '0' may be calculated by performing a modulo operation in which the second one-time authentication number '78907890' is a dividend and the second authentication number '3' is a divisor.

After that, the member terminal 130 of the first member ' is the (3+1) row (0+1) column in the substitution matrix based on the first operation value '3' and the second operation value '0'. After extracting the component value 'R' located in 4 rows and 1 column' as the first feedback value, the first feedback value 'R' may be transmitted to the offline commerce platform server 110 .

When the first feedback value is received as a feedback value corresponding to the permutation matrix from the member terminal 130 of the first member, the check unit 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 confirmation 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 provides information about the first member's member terminal 130 . authentication can be completed.

In this way, the payment approval processing 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, and the feedback. After the authentication of the member terminal 130 of the first member is performed through the value requesting unit 124, the confirmation unit 125, and the authentication completion unit 126, the authentication of the member terminal 130 of the first member is performed. Upon completion, payment for the first product is completed by completing payment approval processing for the amount of the first product and transmitting a payment approval completion message for the first product to the POS terminal 140 of the first offline affiliated store. You can let the process go on.

2 is a flowchart illustrating an operation method of an offline commerce platform server that enables offline commerce 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 pre-distributed to each POS terminal of a plurality of offline affiliates) is maintained.

In step S220, member identification information of a plurality of members and asset information (the assets of the plurality of members each having the same purity of gold) The information refers to 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 (in the digital gold token, each of the plurality of members) Maintains a gold information database in which a hash value generated by applying as an input to a preset hash function, and an electronic signature value generated by encrypting the hash value with the private key) are stored .

In step S230, a two-dimensional code is issued from the member terminal of the first member, which is one of the plurality of members, to the POS terminal provided in the first offline affiliated store, which is any one of the plurality of offline affiliated stores. When the request is received, the 2D code including the member identification information of the first member is generated and the 2D code is transmitted to the member terminal of the first member.

In step S240, after the two-dimensional code received in the member terminal of the first member is recognized by the POS terminal of the first offline affiliated store, any one of a plurality of products currently sold by the first offline affiliated store As the barcode attached to the first product is recognized by the POS terminal of the first offline affiliated store and at the same time a payment command for the first product is applied to the POS terminal of the first offline affiliated store, the POS of the first offline affiliated store When product information on the first product, information on the amount of the first product, and member identification information of the first member are received from the terminal along with a request for approval of payment for the first product, the gold information database The first digital gold token corresponding to the member identification information of the first member is extracted and transmitted to the POS terminal of the first offline affiliated store.

In step S250, a verification completion message indicating that verification of the first digital gold token is completed from the POS terminal of the first offline merchant (the verification completion message is transmitted to the POS terminal of the first offline merchant in the first digital After the gold token is received, the POS terminal of the first offline merchant decrypts the digital signature value included in the first digital gold token with the public key distributed in advance to the POS terminal of the first offline merchant; As a result of comparing the hash values of the asset information data included in the first digital gold token to see if they match each other, if it is confirmed that the two values match each other, it indicates that the verification of the first digital gold token has been completed (meaning a message generated to do so) is received, accessing a predetermined gold price information server to check information on the weight of gold corresponding to the price of the first product.

In step S260, when information on the weight of gold corresponding to the amount of the first product is confirmed, authentication of the member terminal of the first member is performed, and then payment approval processing for the amount of the first product to transmit the payment approval completion message for the first product to the POS terminal of the first offline affiliated store.

In step S270, the weight of gold held by the first member in the gold asset information stored in the gold information database stored in the gold information database is calculated as the amount of gold corresponding to the amount of the first product. By deducting the weight, the asset information of the gold held by the first member is updated.

At this time, according to an embodiment of the present invention, the POS terminal of the first offline affiliated store is composed of a code recognition unit for recognizing the two-dimensional code and a barcode reader for recognizing a barcode attached to each of the plurality of products. and the two-dimensional code received at the member terminal of the first member is recognized by the POS terminal of the first offline affiliated store, and the barcode attached to the first product is recognized by the POS terminal of the first offline affiliated store, When the payment command for the first product is applied to the POS terminal of the first offline affiliated store, the two-dimensional code is recognized through the code recognition unit and member identification information of the first member is extracted from the two-dimensional code, After recognizing a barcode attached to the first product through the barcode reader, product information for the first product and information on the amount of the first product are extracted from the barcode attached to the first product, The product information on the first product, information on the price of the first product, and member identification information of the first member may be transmitted to the offline commerce platform server together with a request for approval of payment for the product.

In addition, according to an embodiment of the present invention, when information on the weight of gold corresponding to the amount of the first product is confirmed in step S260, after authentication of the member terminal of the first member is performed, Checking whether the weight of gold held by the first member exceeds the weight of gold corresponding to the value of the first product in asset information on gold held by the first member stored in the gold information database Thus, when it is confirmed that the weight of gold held by the first member exceeds the weight of gold corresponding to the amount of the first product, payment approval processing is completed for the amount of the first product, 1 The payment approval completion message for the first product may be transmitted to the POS terminal of the offline affiliated store.

In addition, according to an embodiment of the present invention, in the method of operating the offline commerce platform 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 asset information data as an input to the hash function 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, the OTP storage unit in which the preset first OTP generating function and the preset second OTP generating function shared in advance with the member terminal of the first member are stored. maintaining, a preset first authentication number m (m is a natural number greater than or equal to 2) and a preset second authentication number k (k is a natural number greater than or equal to 2 different from m) shared with the member terminal of the first member in advance maintaining a number storage unit for authentication in which the amount of money) is stored, and when information on the weight of gold corresponding to the amount of the first product is confirmed, an authentication event for performing authentication of the member terminal of the first member generating, when the authentication event occurs, generating a first one-time authentication number based on the first OTP generation function, then dividing the first one-time authentication number as a dividend and the first authentication number m as a divisor By performing a modulo operation, a first operation value x is calculated, a second one-time authentication number is generated based on the second OTP generation function, and then the second one-time authentication number is a dividend number and the second authentication number calculating a second calculated value y by performing a modulo operation with k as a divisor, generating a random matrix having a size of m x k composed of random component values, and randomly generating a first random value; A permutation matrix having a size of m x k 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 used as 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 ( The first feedback value includes the first OTP generating function, the second OTP generating function, and the first authentication that are pre-stored in the memory of the member terminal of the first member in the member terminal of the first member. A component positioned in the (x+1) row (y+1) column in the substitution matrix after the first operation value x and the second operation value y are calculated based on the number m for the user and the second number k for authentication When a feedback value generated by extracting a 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 second 1 may include the step of completing the authentication of the member terminal for the member.

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

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

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

In addition, the method of operating the offline commerce platform 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 media such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like.

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

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

110: offline commerce platform server
111: private key storage unit 112: gold information database
113: code transmission unit 114: token transmission unit
115: weight information confirmation unit 116: payment approval processing unit
117: asset renewal section 118: token renewal section
119: OTP storage unit 120: number storage unit 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
140: POS terminal of the first offline affiliated store
150: gold price information server

Claims (14)

An offline commerce platform server that enables offline commerce based on gold and digital gold tokens,
a private key storage unit in which a preset private key for electronic signature is stored;
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 on the plurality of members 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 issuance of a two-dimensional code is received from the member terminal of the first member, which is one of the plurality of members, to the POS terminal provided in the first offline affiliated store, which is any one of the plurality of offline affiliated stores, a code transmission unit generating the two-dimensional code including the member identification information of the first member and transmitting the two-dimensional code to the member terminal of the first member;
After the two-dimensional code received in the member terminal of the first member is recognized by the POS terminal of the first offline affiliated store, the first product is one of a plurality of products currently sold by the first offline affiliated store. As the attached barcode is recognized by the POS terminal of the first offline affiliated store and at the same time a payment command for the first product is applied to the POS terminal of the first offline affiliated store, the POS terminal of the first offline affiliated store sends the first When product information on the first product, information on the price of the first product, and member identification information of the first member are received along with a request for approval of payment for a product, the member of the first member is the member of the first member from the gold information database a token transmitter extracting a first digital gold token corresponding to the identification information and transmitting the first digital gold token to the POS terminal of the first offline affiliated store;
A verification completion message indicating that the verification of the first digital gold token is completed from the POS terminal of the first offline merchant. Then, the POS terminal of the first offline affiliated store decrypts the digital signature value included in the first digital gold token with the public key distributed in advance to the POS terminal of the first offline affiliated store, and the first digital gold A message generated to indicate that the verification of the first digital gold token has been completed when it is confirmed that the hash values of the asset information data included in the token match each other and it is confirmed that the hash values match each other means - when received, a weight information checking unit that accesses a predetermined gold price information server and checks information on the weight of gold corresponding to the price of the first product;
When information on the weight of gold corresponding to the amount of the first product is confirmed, authentication of the member terminal of the first member is performed, payment approval processing is completed for the amount of the first product, and the a payment approval processing unit for transmitting a payment approval completion message for the first product to the POS terminal of the first offline affiliated store; and
By deducting the weight of gold held by the first member from asset information on gold held by the first member stored in the gold information database by the weight of gold corresponding to the amount of the first product, Asset update unit that updates asset information on gold held by the first member
Offline commerce platform server comprising a. According to claim 1,
The POS terminal of the first offline affiliated store is
and a code recognition unit for recognizing the two-dimensional code and a barcode reader for recognizing a barcode attached to each of the plurality of products, wherein the two-dimensional code received in the member terminal of the first member is the first When the POS terminal of the offline affiliate store recognizes the barcode attached to the first product and the POS terminal of the first offline affiliate store recognizes the payment command for the first product is applied to the POS terminal of the first offline affiliate store , by recognizing the two-dimensional code through the code recognition unit, extracting member identification information of the first member from the two-dimensional code, and recognizing the barcode attached to the first product through the barcode reader to recognize the first product After extracting product information on the first product and information on the price of the first product from the barcode attached to the The offline commerce platform server, characterized in that it transmits information on the amount of goods and member identification information of the first member to the offline commerce platform server. According to claim 1,
The payment approval processing unit
When information on the weight of gold corresponding to the price of the first product is confirmed, authentication of the member terminal of the first member is performed, and the information stored in the gold information database of the first member is stored in the gold information database. In the gold asset information, it is checked whether the weight of the gold held by the first member exceeds the weight of gold corresponding to the value of the first product, and the weight of the gold held by the first member is determined as the first value. When it is confirmed that the weight of gold corresponding to the price of the product exceeds the weight of the gold, payment approval processing is completed for the amount of the first product, and payment approval for the first product is completed with the POS terminal of the first offline affiliated store Offline commerce platform server that sends messages. According to claim 1,
When the asset information on gold held by the first member is updated by the asset update unit, the updated data of asset information on 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. 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
Offline commerce platform 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 shared with the member terminal of the first member in advance;
A preset number m for first authentication (m is a natural number greater than or equal to 2) and a preset number k for second authentication (k is a natural number greater than or equal to 2 different from m) shared with the member terminal of the first member in advance are stored a number storage unit for authentication;
an authentication event generator for generating an authentication event for performing authentication of the member terminal of the first member when information on the weight of gold corresponding to the price of the first product is confirmed;
When the authentication event occurs, after generating a first one-time authentication number based on the first OTP generation function, the first one-time authentication number is a dividend, and the first authentication number m is a divisor. ) by performing an operation to calculate a first calculated value x, generate a second one-time authentication number based on the second OTP generation function, and then use the second one-time authentication number as a dividend, and the second authentication number k an arithmetic value calculating unit for calculating a second arithmetic value y by performing a modulo arithmetic operation in which is a divisor;
a random value generator generating a random matrix having a size of mxk composed of random component values and randomly generating a first random value;
In the random matrix, a permutation matrix having a size of mxk is generated by substituting a component located in a (x+1) row (y+1) column with the first random value, and the permutation matrix is converted to a member of the first member. a feedback value requesting unit for requesting transmission of a feedback value corresponding to the permutation matrix to the member terminal of the first member while transmitting to the terminal;
A first feedback value as a feedback value corresponding to the permutation matrix from the member terminal of the first member - The first feedback value is pre-stored in the memory of the member terminal of the first member in the member terminal of the first member After the first operation value x and the second operation value y are calculated based on the first OTP generation function, the second OTP generation function, the first authentication number m, and the second authentication number k A check unit that checks whether the first feedback value is the same as the first random value when - is a feedback value generated by extracting the component value located in the (x+1) row (y+1) column in the substitution matrix ; and
When it is confirmed that the first feedback value is the same as the first random value, an authentication completion unit that completes the authentication of the member terminal of the first member
Offline commerce platform server comprising a. 6. The method of claim 5,
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 offline commerce platform When the substitution matrix is received from the server, the first one-time authentication number is generated based on the first OTP generation function stored in the memory of the member terminal of the first member, and then the first one-time authentication number is subtracted , the first operation value x is calculated by performing a modulo operation by dividing the first authentication number m as a divisor, and the second OTP generation function stored in the memory of the member terminal of the first member. After generating the second one-time authentication number based on , after extracting, as the first feedback value, a component value located in (x+1) row (y+1) column in the substitution matrix based on the first operation value x and the second operation value y, as the first feedback value Offline commerce platform server, characterized in that it transmits a value to the offline commerce platform server. A method of operating an offline commerce platform server that enables offline commerce based on gold and digital gold tokens,
A preset private key for electronic signature - the private key and the public key constituting the key pair are pre-distributed to each point of sale (POS) terminal of a plurality of offline merchants - Maintain a private key storage unit to do;
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 on the plurality of members 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 issuance of a two-dimensional code is received from the member terminal of the first member, which is one of the plurality of members, to the POS terminal provided in the first offline affiliated store, which is any one of the plurality of offline affiliated stores, generating the two-dimensional code including the member identification information of the first member and transmitting the two-dimensional code to the member terminal of the first member;
After the two-dimensional code received in the member terminal of the first member is recognized by the POS terminal of the first offline affiliated store, the first product is one of a plurality of products currently sold by the first offline affiliated store. As the attached barcode is recognized by the POS terminal of the first offline affiliated store and at the same time a payment command for the first product is applied to the POS terminal of the first offline affiliated store, the POS terminal of the first offline affiliated store sends the first When product information on the first product, information on the price of the first product, and member identification information of the first member are received along with a request for approval of payment for a product, the member of the first member is the member of the first member from the gold information database extracting a first digital gold token corresponding to the identification information and transmitting the first digital gold token to the POS terminal of the first offline affiliated store;
A verification completion message indicating that the verification of the first digital gold token is completed from the POS terminal of the first offline merchant. Then, the POS terminal of the first offline affiliated store decrypts the digital signature value included in the first digital gold token with the public key distributed in advance to the POS terminal of the first offline affiliated store, and the first digital gold A message generated to indicate that the verification of the first digital gold token has been completed when it is confirmed that the hash values of the asset information data included in the token match each other and it is confirmed that the hash values match each other means - when received, accessing a predetermined gold price information server to check information on the weight of gold corresponding to the price of the first product;
When information on the weight of gold corresponding to the amount of the first product is confirmed, authentication of the member terminal of the first member is performed, payment approval processing is completed for the amount of the first product, and the transmitting a payment approval completion message for the first product to a POS terminal of a first offline affiliated store; and
By deducting the weight of gold held by the first member from asset information on gold held by the first member stored in the gold information database by the weight of gold corresponding to the amount of the first product, Updating the asset information of the gold held by the first member
An operating method of an offline commerce platform server comprising a. 8. The method of claim 7,
The POS terminal of the first offline affiliated store is
and a code recognition unit for recognizing the two-dimensional code and a barcode reader for recognizing a barcode attached to each of the plurality of products, wherein the two-dimensional code received in the member terminal of the first member is the first When the POS terminal of the offline affiliate store recognizes the barcode attached to the first product and the POS terminal of the first offline affiliate store recognizes the payment command for the first product is applied to the POS terminal of the first offline affiliate store , by recognizing the two-dimensional code through the code recognition unit, extracting member identification information of the first member from the two-dimensional code, and recognizing the barcode attached to the first product through the barcode reader to recognize the first product After extracting product information on the first product and information on the price of the first product from the barcode attached to the The method of operating an offline commerce platform server, characterized in that the information on the amount of the product and the member identification information of the first member are transmitted to the offline commerce platform server. 8. The method of claim 7,
The step of transmitting the payment approval completion message is
When information on the weight of gold corresponding to the price of the first product is confirmed, authentication of the member terminal of the first member is performed, and the information stored in the gold information database of the first member is stored in the gold information database. In the gold asset information, it is checked whether the weight of the gold held by the first member exceeds the weight of gold corresponding to the value of the first product, and the weight of the gold held by the first member is determined as the first value. When it is confirmed that the weight of gold corresponding to the price of the product exceeds the weight of the gold, payment approval processing is completed for the amount of the first product, and payment approval for the first product is completed with the POS terminal of the first offline affiliated store How an offline commerce platform server works to send messages. 8. The method of claim 7,
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;
Operation method of the offline commerce platform server further comprising. 8. The method of claim 7,
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 performing authentication of the member terminal of the first member when information on the weight of gold corresponding to the price of the first product is confirmed;
When the authentication event occurs, after generating a first one-time authentication number based on the first OTP generation function, the first one-time authentication number is a dividend, and the first authentication number m is a divisor. ) by performing an operation to calculate a first calculated value x, generate a second one-time authentication number based on the second OTP generation function, and then use the second one-time authentication number as a dividend, and the second authentication number k calculating a second operation value y by performing a modulo operation in which y is a divisor;
generating a random matrix having a size of mxk composed of random component values, and randomly generating a first random value;
In the random matrix, a permutation matrix having a size of mxk is generated by substituting a component located in a (x+1) row (y+1) column with the first random value, and the permutation matrix is converted to a member of the first member. requesting transmission of a feedback value corresponding to the permutation matrix to the member terminal of the first member while transmitting to the terminal;
A first feedback value as a feedback value corresponding to the permutation matrix from the member terminal of the first member - The first feedback value is pre-stored in the memory of the member terminal of the first member in the member terminal of the first member After the first operation value x and the second operation value y are calculated based on the first OTP generation function, the second OTP generation function, the first authentication number m, and the second authentication number k checking whether the first feedback value is the same as the first random value when - is a feedback value generated by extracting a component value located in a (x+1) row (y+1) column in the substitution matrix; and
When it is confirmed that the first feedback value is the same as the first random value, completing the authentication of the first member to the member terminal;
An operating method of an offline commerce platform server comprising a. 12. The method of claim 11,
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 offline commerce platform When the substitution matrix is received from the server, the first one-time authentication number is generated based on the first OTP generation function stored in the memory of the member terminal of the first member, and then the first one-time authentication number is subtracted , the first operation value x is calculated by performing a modulo operation by dividing the first authentication number m as a divisor, and the second OTP generation function stored in the memory of the member terminal of the first member. After generating the second one-time authentication number based on , after extracting, as the first feedback value, a component value located in (x+1) row (y+1) column in the substitution matrix based on the first operation value x and the second operation value y, as the first feedback value A method of operating an offline commerce platform server, characterized in that the value is transmitted to the offline commerce platform server. 13. A computer-readable recording medium recording a computer program for executing the method of any one of claims 7 to 12 through combination with a computer. A computer program stored in a storage medium for executing the method of any one of claims 7 to 12 through combination with a computer.

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