KR102319663B1 - Content data management server that enables storage and management of content data through interlocking with the two-dimensional code inserted in precious metal goods and operating method thereof - Google Patents

Abstract

Disclosed are a content data management server enabling storage and management of content data through interworking with a two-dimensional code inserted into a precious metal product, and an operating method thereof. The present invention provides the content data management server enabling storage and management of content data through interworking with a two-dimensional code inserted into a precious metal product and the operating method thereof. By scanning the two-dimensional code inserted into the precious metal product through an electronic terminal of a user him/herself, content data can more easily stored and inquired.

Description

A content data management server that enables the storage and management of content data through interlocking with a two-dimensional code inserted into a precious metal product and its operation method DIMENSIONAL CODE INSERTED IN PRECIOUS METAL GOODS AND OPERATING METHOD THEREOF}

The present invention relates to a content data management server that enables storage and management of content data through interworking with a two-dimensional code inserted into a precious metal product, and an operating method thereof.

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

Among these spot assets, precious metals are regarded as safe assets worldwide, and many people are showing interest in purchasing precious metals as the economy becomes difficult.

On the other hand, precious metal products are sometimes presented to celebrate or commemorate special days such as weddings and first birthday parties.

When receiving such a precious metal product as a gift, in order to remember a special day, it is recorded as a photo or a video, and the album is created or shared with many people through SNS.

In this way, since the demand for recording and leaving memories with one's precious metal products in photos or videos, etc. is increasing, a predetermined two-dimensional code is printed on the precious metal goods, and the two-dimensional code is used as a medium. You may consider introducing a service that supports the easier storage and management of contents related to precious metal products.

Therefore, there is a need for research on service technology that supports the more efficient storage and management of contents for precious metal products by scanning the two-dimensional code inserted into the precious metal product.

The present invention provides a content data management server that enables storage and management of content data through interlocking with a two-dimensional code inserted into a precious metal product and an operation method thereof, whereby a user inserts into a precious metal product through his/her electronic terminal We want to support easier storage and inquiry of content data by scanning the 2D code.

A content data management server that enables storage and management of content data through interworking with a two-dimensional code inserted into a precious metal product according to an embodiment of the present invention includes a plurality of precious metal products - each of the plurality of precious metal products A primary identification number of n (n is a natural number greater than or equal to 2) and a secondary identification number of k (k is a natural number greater than or equal to 2) are assigned to identify each precious metal product, and the primary identification number and auxiliary identification number of each precious metal product An authentication token, which is an output value calculated by applying an identification number as an input to a preset token generation function, is allocated, and information about the main identification number of each precious metal product and information about the authentication token are inserted into each of the plurality of precious metal products A two-dimensional code is printed - a complex information storage unit in which an auxiliary identification number for each and an authentication token for each of the plurality of precious metal products are stored in correspondence to each other, 1 When the first content data is received from the electronic terminal of the user who purchased the precious metal product, and a content storage request requesting to store the first content data in conjunction with the first precious metal product is received, the first content data is transmitted to the electronic terminal 1 Inserted in the two-dimensional code printed on the precious metal product, a request unit requesting transmission of the main identification number and authentication token for the first precious metal product, the two-dimensional code printed on the first precious metal product from the electronic terminal As the is scanned and recognized, when the first main identification number and the first authentication token extracted through the two-dimensional code printed on the first precious metal product are received from the electronic terminal, the first authentication from the complex information storage unit A first auxiliary identification number extracting unit for extracting an auxiliary identification number stored in correspondence with the same authentication token as the token, and an auxiliary identification number stored in correspondence with the same authentication token as the first authentication token from the composite information storage unit As a result, when the first auxiliary identification number is extracted, the first main identification number and the first auxiliary identification number are input to the token generation function. A first token confirmation unit that checks whether the first operation result calculated when applying as the first authentication token becomes the first authentication token, and when it is confirmed that the first operation result becomes the first authentication token, predetermined content data Connecting to a storage server, sending the first content data, the first authentication token, and the first auxiliary identification number to the content data storage server, while transmitting the first content data, the first authentication to the content data storage server The first content data, the first authentication token and the first auxiliary identification from the storage requesting unit and the content data storage server requesting to store the token and the first auxiliary identification number in correspondence with each other, to the contents data storage server When a feedback message indicating that the numbers correspond to each other and storage has been completed is received, a storage completion message indicating that the storage of the first content data has been completed is generated by interworking with the first precious metal product, and the completion message is transmitted to the electronic terminal includes wealth.

In addition, the operating method of the content data management server that enables the storage and management of content data through interworking with the two-dimensional code inserted into the precious metal goods according to an embodiment of the present invention is a plurality of precious metal goods - the plurality of Each of the precious metal products is assigned an n (n is a natural number greater than or equal to 2) digit primary identification number and k (k is a natural number greater than or equal to 2) digit secondary identification number for identifying each precious metal product. An authentication token, which is an output value obtained by applying a main identification number and a secondary identification number as inputs to a preset token generation function, is allocated, and information on the main identification number of each precious metal product and an authentication token to each of the plurality of precious metal products A two-dimensional code is printed with information about - maintaining a complex information storage unit in which an auxiliary identification number for each and an authentication token for each of the plurality of precious metal products are stored in correspondence with each other, the plurality of As the first content data is received from the electronic terminal of the user who has purchased the first precious metal product, which is one of the precious metal products, a content storage request requesting to store the first contents data in conjunction with the first precious metal product is received If it is, requesting the transmission of the main identification number and authentication token for the first precious metal product, which is inserted in the two-dimensional code printed on the first precious metal product, to the electronic terminal, the first precious metal in the electronic terminal As the two-dimensional code printed on the product is scanned and recognized, when the first main identification number and the first authentication token extracted through the two-dimensional code printed on the first precious metal product are received from the electronic terminal, the composite information Extracting an auxiliary identification number stored in correspondence to the same authentication token as the first authentication token from a storage unit, from the composite information storage unit, auxiliary identification stored in correspondence to the same authentication token as the first authentication token As a number, when the first auxiliary identification number is extracted, the first main identification number and the first auxiliary identification number in the token generation function Checking whether or not the first operation result calculated when a number is applied as an input becomes the first authentication token, and when it is confirmed that the first operation result becomes the first authentication token, storing predetermined content data Accessing a server, transmitting the first content data, the first authentication token and the first auxiliary identification number to the content data storage server, while transmitting the first content data, the first authentication token to the content data storage server and requesting to store the first auxiliary identification number in correspondence with each other, and from the contents data storage server, the first contents data, the first authentication token, and the first auxiliary identification number to the contents data storage server. When a corresponding feedback message indicating that the storage has been completed is received, generating a storage completion message indicating that the storage of the first content data is completed by interworking with the first precious metal product, and transmitting it to the electronic terminal.

The present invention provides a content data management server that enables storage and management of content data through interlocking with a two-dimensional code inserted into a precious metal product and an operation method thereof, whereby a user inserts into a precious metal product through his/her electronic terminal By scanning the 2D code, it can be supported to store and search content data more easily.

1 is a diagram illustrating a structure of a content data management server that enables storage and management of content data through interworking with a two-dimensional code inserted into a precious metal product according to an embodiment of the present invention.
2 is a flowchart illustrating an operation method of a content data management server that enables storage and management of content data through interworking with a two-dimensional code inserted into a precious metal product according to an embodiment of the present invention.

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

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

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

1 is a diagram illustrating a structure of a content data management server that enables storage and management of content data through interworking with a two-dimensional code inserted into a precious metal product according to an embodiment of the present invention.

Referring to FIG. 1 , the content data management server 110 according to the present invention includes a complex information storage unit 111 , a request unit 112 , a first auxiliary identification number extraction unit 113 , and a first token verification unit 114 . ), a storage request unit 115 and a completion message transmission unit 116 .

First, each of the plurality of precious metal products in the present invention is assigned a main identification number of n (n is a natural number of 2 or more) digits and a secondary identification number of k (k is a natural number of 2 or more) digits for identifying each precious metal product. At the same time, the main identification number and the secondary identification number of each precious metal product are applied as inputs to a preset token generation function, and an authentication token, which is an output value, is assigned.

At this time, according to an embodiment of the present invention, when the token generation function is applied as an input, the n-digit main identification number and k-digit auxiliary identification number assigned to any one of the plurality of precious metal products are applied as inputs, Kronecker product (Kronecker product) between a column vector having n numbers constituting an n-digit main identification number applied as input and a row vector having k numbers constituting a k-digit auxiliary identification number applied as an input as components Product) to generate an arithmetic matrix having a size of nxk, and may be a function of calculating the Euclidean Norm of the arithmetic matrix as an authentication token corresponding to any one of the precious metal products.

Here, the Euclidean norm is an L2 norm for indicating the size of a vector or matrix, and may be calculated according to Equation 1 below.

는 유클리드 노름을 의미하고, x_i는 벡터나 행렬에 포함되어 있는 i번째 성분을 의미한다.In Equation 1 above

denotes the Euclidean norm, and x _i denotes the i-th component included in a vector or matrix.

In addition, the Kronecker product refers to a matrix that specifically expresses the tensor product of two matrices. Assuming that a matrix M of mxn as in Equation 2 below and a matrix N of pxq as in Equation 3 below are given, the matrix The Kronecker product between M and the matrix N can be expressed as Equation 4 below.

In addition, each of the plurality of precious metal products is printed with a two-dimensional code in which information on the main identification number of each precious metal product and information on the authentication token are inserted.

Here, the two-dimensional code means a code capable of inserting information such as various characters on a two-dimensional image pattern, and a QR code (Quick Response Code), veri code, dot code, etc. are used, A digital code capable of expressing predetermined data on a two-dimensional image through a pixel space composed of a plurality of dots disclosed in No. 10-1897960 or a surface of a material disclosed in Korean Patent No. 10-1913009 with different depths, shapes and After configuring a plurality of holes having a size, when light is illuminated on the surface of the material, a code for determining authenticity or the like can be used to recognize light reflected through the plurality of holes and extract data. . Such a two-dimensional code may be printed on the surface of each of the plurality of precious metal products. In a method of printing the two-dimensional code on the precious metal product, the image in which the two-dimensional code is inserted is transferred to the surface of the precious metal product. As a method of printing a two-dimensional code on a precious metal product may be used, and by performing press compression on the surface of the precious metal product, a two-dimensional code is printed on the precious metal product in the form of printing a pattern of a predetermined two-dimensional code on the surface. method, etc., may be used.

In this situation, the auxiliary identification number for each of the plurality of precious metal products and the authentication token for each of the plurality of precious metal products are stored in the complex information storage unit 111 of the content data management server 110 to correspond to each other, have.

For example, if 'k = 5', the composite information storage unit 111 has a 5-digit auxiliary identification number for each of the plurality of precious metal products as shown in Table 1 below, and the information for each of the plurality of precious metal products Authentication tokens may be stored in correspondence with each other.

Auxiliary identification number for each of a plurality of precious metal products authentication token 1 2 3 4 5 auth token 1 23456 auth token 2 34567 authentication token 3 ... ...

The request unit 112 receives the first content data from the electronic terminal 150 of a user who has purchased a first precious metal product, which is one of the plurality of precious metal products, and interworks with the first precious metal product to obtain the first When a content storage request requesting to store content data is received, the main identification number and authentication token for the first precious metal product, which is inserted in the two-dimensional code printed on the first precious metal product, to the electronic terminal 150 request to be sent.

Here, the first content data may be a photo or a video of the user's precious metal product.

As the first auxiliary identification number extraction unit 113 scans and recognizes the two-dimensional code printed on the first precious metal product in the electronic terminal 150, 2 printed on the first precious metal product from the electronic terminal 150 When the first main identification number and the first authentication token extracted through the dimension code are received, the auxiliary identification number stored in correspondence to the same authentication token as the first authentication token is extracted from the complex information storage unit 111 .

The first token confirmation unit 114 is an auxiliary identification number stored in correspondence with the same authentication token as the first authentication token from the complex information storage unit 111. When the first auxiliary identification number is extracted, the token is generated. It is checked whether the first operation result calculated when the first main identification number and the first auxiliary identification number are applied to the function as inputs becomes the first authentication token.

When it is confirmed that the first operation result is the first authentication token, the storage request unit 115 accesses the content data storage server 160 and sends the first content data to the content data storage server 160 , the While transmitting the first authentication token and the first auxiliary identification number, it requests the contents data storage server 160 to store the first contents data, the first authentication token, and the first auxiliary identification number in correspondence with each other.

The completion message transmitting unit 116 indicates that the first content data, the first authentication token, and the first auxiliary identification number correspond to each other and storage is completed in the content data storage server 160 from the content data storage server 160 . When the feedback message notifying is received, a storage completion message indicating that the storage of the first content data has been completed is generated by interworking with the first precious metal product, and transmitted to the electronic terminal 150 .

Hereinafter, the operation of the request unit 112 , the first auxiliary identification number extraction unit 113 , the first token verification unit 114 , the storage request unit 115 , and the completion message transmission unit 116 will be described in detail. do it with

First, while the first content data 'content data 1' is received from the electronic terminal 150 of the user who has purchased the first precious metal product, which is one of the plurality of precious metal products, the first precious metal product and Assume that a content storage request requesting to store 'content data 1' in association is received by the content data management server 110 .

Then, the requesting unit 112 may request the transmission of the main identification number and the authentication token for the first precious metal product, which is inserted in the two-dimensional code printed on the first precious metal product, to the electronic terminal 150 .

After that, when the user scans and recognizes the two-dimensional code printed on the first precious metal product using the electronic terminal 150, the electronic terminal 150 displays the two-dimensional code printed on the first precious metal product. The inserted, first main identification number and the first authentication token may be extracted and transmitted to the content data management server 110 .

In this way, as the two-dimensional code printed on the first precious metal product is scanned and recognized in the electronic terminal 150, the first extracted through the two-dimensional code printed on the first precious metal product from the electronic terminal 150 When the main identification number and the first authentication token are received by the content data management server 110 , the first auxiliary identification number extraction unit 113 is obtained from the complex information storage unit 111 in the same authentication token as the first authentication token. A corresponding stored auxiliary identification number can be extracted.

In this regard, it is assumed that 'n = 6', the first main identification number for the first precious metal product received from the electronic terminal 150 is '321123', and the first authentication token for the first precious metal product is In the case of 'authentication token 1', the first auxiliary identification number extraction unit 113 corresponds to the same authentication token as 'authentication token 1', which is the first authentication token, from the complex information storage unit 111 as shown in Table 1 above. The stored auxiliary identification number can be extracted.

At this time, by the first auxiliary identification number extraction unit 113, from the complex information storage unit 111, the first authentication token 'authentication token 1' as an auxiliary identification number stored in correspondence with the same authentication token, When the first auxiliary identification number of '12345' is extracted, the first token confirmation unit 114 provides the first main identification number '321123' and the first auxiliary identification number '12345' to the token generation function. It may be checked whether the first operation result calculated when the input is applied becomes 'authentication token 1', which is the first authentication token.

If it is confirmed that the first operation result is 'authentication token 1', which is the first authentication token, the first main identification number received from the electronic terminal 150 and the first authentication token 2 are normally issued. Since it means that the information extracted from the dimension code is correct, the storage request unit 115 accesses the content data storage server 160 and sends the first content data 'content data 1' to the content data storage server 160 . , while transmitting 'authentication token 1', which is the first authentication token, and '12345', which is the first auxiliary identification number, to the content data storage server 160 , 'content data 1', which is the first content data, and the first A request may be made to store the authentication token 'authentication token 1' and the first auxiliary identification number '12345' in correspondence with each other.

Then, the content data storage server 160 may store the first content data 'content data 1', the first authentication token 'authentication token 1', and the first auxiliary identification number '12345' in correspondence with each other. have.

In this regard, as shown in Table 2 below, the content data storage server 160 includes the first content data 'content data 1', the first authentication token 'authentication token 1', and the first auxiliary identification number ' 12345' can be stored in correspondence with each other.

content data authentication token secondary identification number content data 1 auth token 1 1 2 3 4 5

Then, the content data storage server 160 stores the first content data 'content data 1', the first authentication token 'authentication token 1', and the first auxiliary identification number '12345' in correspondence with each other. A feedback message notifying that completion may be generated and transmitted to the content data management server 110 .

In this way, from the content data storage server 160, the first content data 'content data 1', the first authentication token 'authentication token 1', and the first auxiliary identification number '12345' are stored in correspondence with each other. When the feedback message indicating that the completion is received by the contents data management server 110, the completion message transmitting unit 116 is linked with the first precious metal product to indicate that the storage of the first contents data 'content data 1' has been completed. A storage completion message may be generated and transmitted to the electronic terminal 150 .

According to an embodiment of the present invention, the content data management server 110 includes a second auxiliary identification number extraction unit 117 , a second token verification unit 118 , a data search request unit 119 , and a data transmission unit 120 . ) may be further included.

After the storage completion message is transmitted to the electronic terminal 150, the second auxiliary identification number extraction unit 117 scans and recognizes the two-dimensional code printed on the first precious metal product in the electronic terminal 150, When the first main identification number and the first authentication token are received from the electronic terminal 150 and at the same time, when a query request for the first content data stored in association with the first precious metal product is received, the complex information is stored An auxiliary identification number stored in correspondence with the same authentication token as the first authentication token is extracted from the unit 111 .

The second token confirmation unit 118 is an auxiliary identification number stored in correspondence with the same authentication token as the first authentication token from the complex information storage unit 111. When the first auxiliary identification number is extracted, the token It is checked whether the second operation result calculated when the first main identification number and the first auxiliary identification number are applied to the generation function as inputs becomes the first authentication token.

When it is confirmed that the second operation result is the first authentication token, the data search request unit 119 accesses the content data storage server 160 and sends the first auxiliary identification number to the content data storage server 160 . and a search request for the first content data while transmitting the first authentication token as an index value for searching the first content data.

The data transmission unit 120 stores the content data storage server 160 in correspondence with the first auxiliary identification number and the first authentication token by using the first auxiliary identification number and the first authentication token as index values. When the first content data is received as a search result from the content data storage server 160 as the first content data is searched, the first content data is transmitted to the electronic terminal 150 .

Hereinafter, operations of the second auxiliary identification number extraction unit 117 , the second token verification unit 118 , the data search request unit 119 , and the data transmission unit 120 will be described in detail.

First, as in the above example, it is said that after the storage completion message indicating that the storage of 'content data 1', which is the first content data, has been completed in conjunction with the first precious metal product, is transmitted to the electronic terminal 150, In this case, it is assumed that the user scans and recognizes the two-dimensional code printed on the first precious metal product by using the electronic terminal 150 to inquire about 'content data 1'.

Then, the electronic terminal 150 extracts '321123', which is the first main identification number, and 'authentication token 1', which is the first authentication token, which are inserted in the two-dimensional code printed on the first precious metal product, and content It can be transmitted to the data management server (110).

In this way, in the electronic terminal 150, as the two-dimensional code printed on the first precious metal product is scanned and recognized, the first main identification number '321123' and the first authentication token from the electronic terminal 150 When 'authentication token 1' is received and a query request for 'content data 1' stored in association with the first precious metal product is received, the second auxiliary identification number extraction unit 117 is shown in Table 1 above. An auxiliary identification number stored in correspondence with the same authentication token as 'authentication token 1' may be extracted from the composite information storage 111 .

At this time, by the second auxiliary identification number extraction unit 117, from the complex information storage unit 111, the first authentication token is the auxiliary identification number stored in correspondence to the same authentication token as 'authentication token 1', When the first auxiliary identification number of '12345' is extracted, the second token confirmation unit 118 provides the first main identification number '321123' and the first auxiliary identification number '12345' to the token generation function. It may be checked whether the second calculation result calculated when the input is applied becomes 'authentication token 1', which is the first authentication token.

If it is confirmed that the second operation result is 'authentication token 1', which is the first authentication token, the first main identification number received from the electronic terminal 150 and the first authentication token 2 Since it means that the information extracted from the dimension code is correct, the data search request unit 119 accesses the content data storage server 160 and sends the first auxiliary identification number '12345' to the content data storage server 160 . and 'authentication token 1', which is the first authentication token, as an index value for searching for 'content data 1', which is the first content data, while transmitting a search request for 'content data 1'.

Then, the content data storage server 160 stores in correspondence with the first auxiliary identification number '12345' and the first authentication token 'authentication token 1' on the content data storage server 160 as shown in Table 2 above. After searching for 'content data 1', the 'content data 1' may be transmitted to the content data management server 110 .

In this way, the content data storage server 160 uses the first auxiliary identification number '12345' and the first authentication token 'authentication token 1' as index values to obtain the first auxiliary identification number '12345' and the As 'content data 1' stored in correspondence with 'authentication token 1', which is the first authentication token, is searched for, 'content data 1' from the content data storage server 160 is retrieved from the content data management server 110 as a result of the search. ), the data transmission unit 120 may transmit 'content data 1' to the electronic terminal 150 .

In this case, according to an embodiment of the present invention, the data transmission unit 120 may include a phone number request unit 121 , an encryption unit 122 , and a transmission unit 123 .

When the first content data is received from the content data storage server 160 as a search result, the phone number request unit 121 requests to transmit the phone number of the mobile terminal owned by the user to the electronic terminal 150 . .

When the first phone number is received from the electronic terminal 150 to the phone number of the mobile terminal, the encryption unit 122 randomly generates an encryption key and then encrypts the first content data with the encryption key.

When the first content data is encrypted with the encryption key, the transmitting unit 123 generates a short message including the encryption key, transmits the short message with the first phone number as the receiving side, and simultaneously transmits the encrypted message. The first content data is transmitted to the electronic terminal 150 .

Hereinafter, operations of the phone number request unit 121 , the encryption unit 122 , and the transmission unit 123 will be described in detail.

For example, as in the above example, when it is said that 'content data 1' from the content data storage server 160 is received by the content data management server 110 as a search result, the phone number requesting unit 121 sends the electronic terminal 150 ) to request transmission of the phone number of the mobile terminal possessed by the user.

In this case, the user may transmit the phone number of the mobile terminal possessed by the user to the content data management server 110 through the electronic terminal 150 .

If it is said that the first phone number '010-0000-0000' is received from the electronic terminal 150 to the phone number of the mobile terminal, the encryption unit 122 randomly generates an encryption key, The 'content data 1', which is the first content data, may be encrypted with the encryption key.

In relation to this, when it is assumed that the encryption key of 'encryption key 1' is randomly generated, the encryption unit 122 may encrypt 'content data 1' with 'encryption key 1'.

In this way, when 'content data 1' is encrypted with the 'encryption key 1' by the encryption unit 122, the transmission unit 123 generates a short message including the 'encryption key 1', and the first phone number At the same time as transmitting the short message to '010-0000-0000' as the receiving side, the encrypted 'content data 1' may be transmitted to the electronic terminal 150 .

At this time, when the encrypted first content data is received from the content data management server 110 , the electronic terminal 150 displays an input window instructing input of a key for decrypting the encrypted first content data on the screen. and, when the encryption key included in the short message is input from the user through the input window, the first content data is decrypted with the encryption key, and then the first content data is played back in the electronic terminal 150 can

For example, as in the above example, when it is said that 'content data 1', which is the encrypted first content data, is received from the content data management server 110, the electronic terminal 150 decrypts the encrypted 'content data 1'. An input window for instructing input of a key to perform the operation may be displayed on the screen.

Then, when 'encryption key 1', which is the encryption key included in the short message, is input from the user through the input window displayed on the screen of the electronic terminal 150, the electronic terminal 150 displays the 'encryption key After the 'content data 1' is decoded as 1', the 'content data 1' may be reproduced in the electronic terminal 150 .

According to an embodiment of the present invention, the content data management server 110 may further include a history information generating unit 124 , a transaction generating unit 125 , and a registration requesting unit 126 .

When the first content data is transmitted to the electronic terminal 150, the history information generator 124 receives the current location information of the electronic terminal 150 from the electronic terminal 150, and the first content data is electronically After generating time information for a time point transmitted to the terminal 150, inquiry history information including the current location information, the time information, the first main identification number, and the first authentication token is generated.

For example, as in the above-described example, it is assumed that the first content data 'content data 1' has been transmitted to the electronic terminal 150 through the data transmitter 120 .

Then, the history information generator 124 receives the current location information of the electronic terminal 150 from the electronic terminal 150 , and generates time information about when 'content data 1' is transmitted to the electronic terminal 150 . After doing so, inquiry history information including the current location information, the time information, '321123' which is the first main identification number, and 'authentication token 1' which is the first authentication token may be generated.

In relation, when the current location information is referred to as 'current location information 1' and the time information is referred to as 'time information 1', the history information generating unit 124 generates inquiry history information as shown in Table 3 below. can

Current location information time information 1st Primary Identification Number first authentication token Current location information 1 time information 1 321123 auth token 1

When the inquiry history information is generated, the transaction generator 125 generates a transaction including the inquiry history information.

When the transaction is generated, the registration request unit 126 randomly selects a first node device that is any one of a plurality of node devices 11, 12, 13, and 14 constituting the block chain network, and then While sending the transaction to a one-node device, it sends a registration request of the transaction to the blockchain network.

At this time, when the registration request is received with the transaction from the content data management server 110, the first node device includes the transaction based on the previous block chained to the block chain data stored in the memory. By creating a first block and linking the first block to the block chain data in a chain, the first block is transferred to a plurality of node devices ( 11, 12, 13, and 14), the propagation may be performed to other node devices except for the first node device.

Specifically, when the registration request is received with the transaction from the content data management server 110, the first node device refers to the block header of a previous block connected to the block chain data in a chain and includes the transaction. The first block that is a new block may be generated. Then, the first node device connects the first block to the block chain data in a chain, so that after the storage of the first block is completed, the first block is transferred to a plurality of node devices through the block chain network. Among the nodes 11, 12, 13, and 14, propagation may be performed to other node devices except for the first node device.

In this way, when the first content data is transmitted to the electronic terminal 150, the content data management server 110 according to the present invention generates inquiry history information for the first content data and registers it in the blockchain network. As a result, it is possible to support later confirmation of when, where, and when the user has inquired the first content data, and also support to confirm whether the first content data has been inquired by another person without permission.

According to an embodiment of the present invention, the contents data management server 110 is linked with the first precious metal product and as the storage of the first contents data is completed, after the storage completion message is transmitted to the electronic terminal 150 , As the second content data is received from the electronic terminal 150, when a content addition storage request requesting additional storage of the second content data is received in conjunction with the first precious metal product, in conjunction with the first precious metal product An operation for additionally storing the second content data may be performed.

In this regard, after the storage completion message is transmitted to the electronic terminal 150 , the request unit 112 receives the second content data from the electronic terminal 150 in conjunction with the first precious metal product. 2 When a content addition storage request requesting additional storage of content data is received, the main identification number for the first precious metal product, which is inserted into the two-dimensional code printed on the first precious metal product, by the electronic terminal 150, and You can request the transmission of an authentication token.

Then, the first auxiliary identification number extraction unit 113 is printed on the first precious metal product from the electronic terminal 150 as the two-dimensional code printed on the first precious metal product is scanned and recognized by the electronic terminal 150 . When the first main identification number and the first authentication token extracted through the two-dimensional code are received, the auxiliary identification number stored in correspondence to the same authentication token as the first authentication token from the complex information storage unit 111 can be extracted.

After that, the first token confirmation unit 114 is an auxiliary identification number stored in correspondence with the same authentication token as the first authentication token from the composite information storage unit 111, and when the first auxiliary identification number is extracted , it is possible to determine whether a third operation result calculated when the first main identification number and the first auxiliary identification number are applied to the token generating function as inputs becomes the first authentication token.

Then, when it is confirmed that the third operation result is the first authentication token, the storage request unit 115 accesses the content data storage server 160 and sends the second content to the content data storage server 160 . While transmitting data, it may be requested to additionally store the second content data in correspondence with the first authentication token and the first auxiliary identification number.

Then, the completion message transmitting unit 116 receives, from the content data storage server 160, a feedback message indicating that additional storage of the second content data has been completed in correspondence with the first authentication token and the first auxiliary identification number. , an additional storage completion message indicating that the additional storage of the second content data has been completed by interworking with the first precious metal product may be generated and transmitted to the electronic terminal 150 .

For example, after the storage completion message is transmitted to the electronic terminal 150, the second content data of 'content data 2' is received from the electronic terminal 150, and the 'content data 2' is linked with the first precious metal product. Assume that a content additional storage request requesting additional storage of ' is received by the content data management server 110 .

Then, the requesting unit 112 may request the transmission of the main identification number and the authentication token for the first precious metal product, which is inserted in the two-dimensional code printed on the first precious metal product, to the electronic terminal 150 .

After that, when the user scans and recognizes the two-dimensional code printed on the first precious metal product using the electronic terminal 150, the electronic terminal 150 displays the two-dimensional code printed on the first precious metal product. The inserted, '321123' as the first main identification number and 'authentication token 1' as the first authentication token may be extracted and transmitted to the content data management server 110 .

In this way, as the two-dimensional code printed on the first precious metal product is scanned and recognized in the electronic terminal 150, the first extracted through the two-dimensional code printed on the first precious metal product from the electronic terminal 150 When the primary identification number '321123' and the first authentication token 'authentication token 1' are received, the first auxiliary identification number extraction unit 113 receives the first authentication token 'authentication' from the complex information storage unit 111 . It is possible to extract the auxiliary identification number stored in correspondence with the same authentication token as 'Token 1', and store it in correspondence with the same authentication token as the 'authentication token 1', which is the first authentication token, from the complex information storage unit 111 . When the first auxiliary identification number of '12345' is extracted as the auxiliary identification number that is being It may be checked whether the third operation result calculated when the identification number '12345' is applied as an input becomes 'authentication token 1', which is the first authentication token.

If it is confirmed that the third operation result is 'authentication token 1', which is the first authentication token, the first main identification number received from the electronic terminal 150 and the first authentication token 2 Since it means that the information extracted from the dimension code is correct, the storage request unit 115 accesses the content data storage server 160 and sends the second content data 'content data 2' to the content data storage server 160 . while transmitting 'content data 2', it may be requested to additionally store 'content data 2' in correspondence with 'authentication token 1' which is the first authentication token and '12345' which is the first auxiliary identification number.

Then, the content data storage server 160 may additionally store the 'content data 2' as the second content data in correspondence with the 'authentication token 1' and the first auxiliary identification number '12345' as the first authentication token. have.

In this regard, the content data storage server 160 may additionally store the second content data in correspondence with the first authentication token and the first auxiliary identification number as shown in Table 4 below.

content data authentication token secondary identification number content data 1
content data 2 auth token 1 1 2 3 4 5

Then, the content data storage server 160 stores the second content data 'content data 2' corresponding to 'authentication token 1' and the first auxiliary identification number '12345' as the first authentication token. A feedback message notifying that completion may be generated and transmitted to the content data management server 110 .

In this way, from the content data storage server 160, the 'content data 2', which is the second content data, is additionally stored in correspondence with the 'authentication token 1' that is the first authentication token and '12345' that is the first auxiliary identification number. When a feedback message indicating that the completion has been received is received by the contents data management server 110, the completion message transmission unit 116 is linked with the first precious metal product to indicate that the additional storage of 'content data 2', which is the second contents data, has been completed. An additional storage completion message may be generated and transmitted to the electronic terminal 150 .

2 is a flowchart illustrating an operation method of a content data management server that enables storage and management of content data through interworking with a two-dimensional code inserted into a precious metal product according to an embodiment of the present invention.

In step S210, a plurality of precious metal products (in each of the plurality of precious metal products, n (n is a natural number greater than or equal to 2) digit main identification number and k (k is a natural number greater than or equal to 2) digits for identifying each precious metal product At the same time as the auxiliary identification number is assigned, an authentication token that is an output value calculated by applying the main identification number and auxiliary identification number of each precious metal product as an input to a preset token generation function is allocated, and each of the plurality of precious metal products is printed with a two-dimensional code in which information on the main identification number of each precious metal product and information on the authentication token are inserted) The secondary identification number for each and the authentication token for each of the plurality of precious metal products correspond to each other Maintains the stored complex information storage.

In step S220, while the first content data is received from the electronic terminal of the user who has purchased the first precious metal product, which is one of the plurality of precious metal products, the first contents data is stored in conjunction with the first precious metal product. When a content storage request is received, the electronic terminal requests transmission of the main identification number and authentication token for the first precious metal product, which is inserted in the two-dimensional code printed on the first precious metal product.

In step S230, as the two-dimensional code printed on the first precious metal product is scanned and recognized in the electronic terminal, the first main identification extracted from the electronic terminal through the two-dimensional code printed on the first precious metal product When the number and the first authentication token are received, an auxiliary identification number stored in correspondence with the same authentication token as the first authentication token is extracted from the composite information storage unit.

In step S240, when the first auxiliary identification number is extracted from the compound information storage unit to the auxiliary identification number stored in correspondence to the same authentication token as the first authentication token, the first main input is sent to the token generation function. It is checked whether the first operation result calculated when the identification number and the first auxiliary identification number are applied as inputs becomes the first authentication token.

In step S250, if it is confirmed that the first operation result becomes the first authentication token, the first content data, the first authentication token, and While transmitting the first auxiliary identification number, the contents data storage server is requested to store the first contents data, the first authentication token, and the first auxiliary identification number in correspondence with each other.

In step S260, when a feedback message indicating that the storage of the first content data, the first authentication token, and the first auxiliary identification number has been completed in correspondence with each other is received from the content data storage server to the content data storage server, A storage completion message indicating that the storage of the first content data has been completed is generated by interworking with the first precious metal product and transmitted to the electronic terminal.

At this time, according to an embodiment of the present invention, when the token generation function is applied as an input, the n-digit main identification number and k-digit auxiliary identification number assigned to any one of the plurality of precious metal products are applied as inputs, By calculating the Kronecker product between a column vector having n numbers constituting the n-digit main identification number applied as input and a row vector having k numbers constituting the k-digit auxiliary identification number applied as input as components, After generating an operation matrix having a size of nxk, it may be a function of calculating the Euclidean norm of the operation matrix as an authentication token corresponding to any one of the precious metal products.

In addition, according to an embodiment of the present invention, in the method of operating the content data management server, after the storage completion message is transmitted to the electronic terminal, the two-dimensional code printed on the first precious metal product is scanned in the electronic terminal. As it is recognized, when the first main identification number and the first authentication token are received from the electronic terminal, and at the same time, when a query request for the first content data stored in association with the first precious metal product is received, the Extracting an auxiliary identification number stored in correspondence to the same authentication token as the first authentication token from the compound information storage unit, from the compound information storage unit, stored in correspondence to the same authentication token as the first authentication token When the first auxiliary identification number is extracted as the auxiliary identification number, the second operation result calculated when the first main identification number and the first auxiliary identification number are applied as inputs to the token generation function is the first checking whether the authentication token is an authentication token; if it is confirmed that the second operation result becomes the first authentication token, accessing the content data storage server and sending the first auxiliary identification number and the content data storage server to the content data storage server transmitting a search request for the first content data while transmitting a first authentication token as an index value for retrieval of the first content data; As the first content data stored in correspondence with the first auxiliary identification number and the first authentication token is retrieved using an authentication token as an index value, the first content data is retrieved from the content data storage server When received as a result, the method may further include transmitting the first content data to the electronic terminal.

At this time, according to an embodiment of the present invention, in the step of transmitting the first content data to the electronic terminal, when the first content data is received from the content data storage server as a search result, the user to the electronic terminal requesting to transmit the phone number of the mobile terminal in hand, when a first phone number is received from the electronic terminal to the phone number of the mobile terminal, an encryption key is randomly generated, and then an encryption key is generated with the encryption key Encrypting content data and when the first content data is encrypted with the encryption key, generating a short message including the encryption key, transmitting the short message with the first phone number as the receiving party, and encrypting the content data It may include the step of transmitting the first content data to the electronic terminal.

In this case, when the encrypted first content data is received from the content data management server, the electronic terminal displays an input window instructing input of a key for decrypting the encrypted first content data on the screen, and the user When the encryption key included in the short message is input through the input window, the first content data may be decrypted with the encryption key, and then the first content data may be reproduced in the electronic terminal.

In addition, according to an embodiment of the present invention, in the method of operating the content data management server, when the first content data is transmitted to the electronic terminal, the current location information of the electronic terminal is received from the electronic terminal, and the second content data is received. 1 After generating time information for when content data is transmitted to the electronic terminal, generating inquiry history information including the current location information, the time information, the first main identification number, and the first authentication token , when the inquiry history information is generated, generating a transaction including the inquiry history information The method may further include transmitting a registration request of the transaction to the blockchain network while transmitting the transaction to the first node device after selecting to do so.

At this time, when the registration request is received with the transaction from the content data management server, the first node device includes the first transaction including the transaction based on the previous block chained to the block chain data stored in the memory. By creating a block and chaining the first block to the blockchain data, after completing the storage of the first block, the first block is transferred to the one of the plurality of node devices through the blockchain network. It can propagate to other node devices except for the first node device.

In addition, according to an embodiment of the present invention, in the method of operating the content data management server, after the storage completion message is transmitted to the electronic terminal, the second content data is received from the electronic terminal, and the first precious metal product When a content additional storage request for additional storage of the second content data is received in conjunction with the electronic terminal, the note for the first precious metal product is inserted into the two-dimensional code printed on the first precious metal product with the electronic terminal Requesting transmission of an identification number and authentication token, as the two-dimensional code printed on the first precious metal product is scanned and recognized in the electronic terminal, the two-dimensional code printed on the first precious metal product from the electronic terminal When the extracted first main identification number and the first authentication token are received, extracting an auxiliary identification number stored in correspondence with the same authentication token as the first authentication token from the compound information storage unit, the complex When the first auxiliary identification number is extracted from the information storage unit as an auxiliary identification number stored corresponding to the same authentication token as the first authentication token, the first main identification number and the first Checking whether or not a third operation result calculated when an auxiliary identification number is applied as an input becomes the first authentication token; accessing a storage server and transmitting the second content data to the content data storage server, requesting additional storage of the second content data in correspondence with the first authentication token and the first auxiliary identification number; When a feedback message is received from the content data storage server indicating that additional storage of the second content data has been completed in correspondence to the first authentication token and the first auxiliary identification number, the second content is linked with the first precious metal product By generating an additional save complete message indicating that the data has been appended to , may further include the step of transmitting to the electronic terminal.

In the above, an operation method of the content data 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 content data management server according to an embodiment of the present invention may correspond to the configuration of the operation of the content data management server 110 described with reference to FIG. 1 , a more detailed description thereof will be omitted. do it with

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

In addition, the method of operating the content data management server according to an embodiment of the present invention may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software. Examples of the computer readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic 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, 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: content data management server
111: complex information storage unit 112: request unit
113: first auxiliary identification number extraction unit 114: first token verification unit
115: storage request unit 116: completion message transmission unit
117: second auxiliary identification number extraction unit 118: second token verification unit
119: data search request unit 120: data transmission unit
121: phone number request unit 122: encryption unit
123: transmission unit 124: history information generation unit
125: transaction creation unit 126: registration request unit
150: electronic terminal
160: content data storage server
11, 12, 13, 14: multiple node devices

Claims (14)

A content data management server that enables storage and management of content data through interlocking with a two-dimensional code inserted into a precious metal product,
A plurality of precious metal products - Each of the plurality of precious metal products is assigned an n (n is a natural number of 2 or more) digit main identification number and k (k is a natural number of 2 or more) digit auxiliary identification number for identifying each precious metal product At the same time, the main identification number and the secondary identification number of each precious metal product are applied as inputs to a preset token generation function, and an authentication token, which is an output value calculated, is assigned, and each of the plurality of precious metal products contains the A two-dimensional code with information on the main identification number and information on the authentication token is printed - Composite information in which the secondary identification number for each and the authentication token for each of the plurality of precious metal products are stored in correspondence with each other storage;
As the first content data is received from the electronic terminal of the user who purchased the first precious metal product, which is one of the plurality of precious metal products, the content storage requesting to store the first contents data in conjunction with the first precious metal product a request unit for requesting transmission of a main identification number and an authentication token for the first precious metal product, which is inserted in the two-dimensional code printed on the first precious metal product, to the electronic terminal when the request is received;
As the two-dimensional code printed on the first precious metal product is scanned and recognized in the electronic terminal, the first main identification number and the first authentication are extracted from the electronic terminal through the two-dimensional code printed on the first precious metal product a first auxiliary identification number extraction unit for extracting an auxiliary identification number stored in correspondence with the same authentication token as the first authentication token from the composite information storage unit when the token is received;
When a first auxiliary identification number is extracted from the composite information storage unit as an auxiliary identification number stored in correspondence to the same authentication token as the first authentication token, the first main identification number and the second identification number are used in the token generation function. a first token confirmation unit for confirming whether a first operation result calculated when a first auxiliary identification number is applied as an input becomes the first authentication token;
When it is confirmed that the first operation result is the first authentication token, a predefined content data storage server is accessed, and the first content data, the first authentication token and the first auxiliary identification are sent to the content data storage server. a storage request unit for requesting the contents data storage server to store the first contents data, the first authentication token, and the first auxiliary identification number in correspondence with each other while transmitting the number; and
When a feedback message is received from the content data storage server indicating that the storage of the first content data, the first authentication token, and the first auxiliary identification number is completed in correspondence with each other in the content data storage server, the first precious metal product A completion message transmission unit for generating a storage completion message indicating that the storage of the first content data has been completed in cooperation with the electronic terminal and transmitting it to the electronic terminal
Content data management server comprising a. According to claim 1,
The token generation function is
When the n-digit main identification number and k-digit auxiliary identification number assigned to any one precious metal product among the plurality of precious metal products are applied as input, n numbers constituting the n-digit main identification number applied as input After generating an operation matrix having a size of nxk by calculating the Kronecker product between a column vector having as components and a row vector having k numbers constituting the k-digit auxiliary identification number applied as input , Content data management server, characterized in that it is a function that calculates the Euclidean Norm of the operation matrix as an authentication token corresponding to any one of the precious metal products. According to claim 1,
After the storage completion message is transmitted to the electronic terminal, as the two-dimensional code printed on the first precious metal product is scanned and recognized in the electronic terminal, the first main identification number and the first authentication from the electronic terminal At the same time as the token is received, when a query request for the first content data stored in association with the first precious metal product is received, it is stored in correspondence with the same authentication token as the first authentication token from the complex information storage unit a second auxiliary identification number extraction unit for extracting the auxiliary identification number;
When the first auxiliary identification number is extracted from the complex information storage unit as an auxiliary identification number stored in correspondence to the same authentication token as the first authentication token, the first main identification number and the a second token confirmation unit for confirming whether a second operation result calculated when a first auxiliary identification number is applied as an input becomes the first authentication token;
When it is confirmed that the second operation result becomes the first authentication token, the content data storage server is accessed, and the first auxiliary identification number and the first authentication token are sent to the content data storage server as the first content data a data search request unit that transmits a search request for the first content data while transmitting it as an index value for searching of ; and
The content data storage server searches the first content data stored in correspondence with the first auxiliary identification number and the first authentication token by using the first auxiliary identification number and the first authentication token as index values. Accordingly, when the first content data is received from the content data storage server as a search result, the data transmitter transmits the first content data to the electronic terminal.
Content data management server further comprising a. 4. The method of claim 3,
The data transmission unit
a phone number requesting unit for requesting to transmit the phone number of the mobile terminal possessed by the user to the electronic terminal when the first content data is received from the content data storage server as a search result;
an encryption unit for randomly generating an encryption key when a first phone number is received from the electronic terminal to the phone number of the mobile terminal, and then encrypting the first content data with the encryption key; and
When the first content data is encrypted with the encryption key, a short message including the encryption key is generated, the short message is transmitted using the first phone number as the receiving side, and the encrypted first content data is transmitted. Transmitting unit for transmitting to the electronic terminal
including,
The electronic terminal is
When the encrypted first content data is received from the content data management server, an input window instructing input of a key for decrypting the encrypted first content data is displayed on the screen, and the user receives the encrypted first content data through the input window. , when the encryption key included in the short message is input, the first content data is decrypted with the encryption key, and then the first content data is reproduced in the electronic terminal. 4. The method of claim 3,
When the transmission of the first content data to the electronic terminal is completed, the current location information of the electronic terminal is received from the electronic terminal, and time information for when the first content data is transmitted to the electronic terminal is generated. a history information generator for generating inquiry history information including the current location information, the time information, the first main identification number, and the first authentication token;
a transaction generator for generating a transaction including the inquiry history information when the inquiry history information is generated; and
When the transaction is generated, a first node device that is any one of a plurality of node devices constituting the blockchain network is randomly selected, and the transaction is transmitted to the first node device, A registration requesting unit that sends a registration request to the network
further comprising,
The first node device
When the registration request is received together with the transaction from the content data management server, a first block including the transaction is generated based on a previous block chained to the block chain data stored in the memory, and the first block is generated. By chaining a block to the block chain data, after the storage of the first block is completed, the first block is transferred through the block chain network to the remaining nodes except for the first node device among the plurality of node devices. A content data management server, characterized in that it propagates to devices. According to claim 1,
the request part
After the storage completion message is transmitted to the electronic terminal, as the second content data is received from the electronic terminal, a content addition storage request requesting additional storage of the second content data in conjunction with the first precious metal product is received When it is, it requests the transmission of the main identification number and authentication token for the first precious metal product, which is inserted in the two-dimensional code printed on the first precious metal product, to the electronic terminal,
The first auxiliary identification number extraction unit
As the two-dimensional code printed on the first precious metal product is scanned and recognized in the electronic terminal, the first main identification number and the second code extracted from the electronic terminal through the two-dimensional code printed on the first precious metal product When the first authentication token is received, the auxiliary identification number stored in correspondence to the same authentication token as the first authentication token is extracted from the composite information storage unit,
The first token confirmation unit
When the first auxiliary identification number is extracted from the composite information storage unit as an auxiliary identification number stored in correspondence to the same authentication token as the first authentication token, the first main identification number and the Checking whether the third operation result calculated when the first auxiliary identification number is applied as an input becomes the first authentication token,
The storage request unit
When it is confirmed that the third operation result becomes the first authentication token, the second content data is transferred to the first while connecting to the content data storage server and transmitting the second content data to the content data storage server. Requesting additional storage in correspondence with the authentication token and the first auxiliary identification number,
The completion message transmission unit
When a feedback message is received from the content data storage server indicating that additional storage of the second content data has been completed in correspondence to the first authentication token and the first auxiliary identification number, the second content data is linked with the first precious metal product and the second A content data management server, characterized in that generating an additional storage completion message indicating that the additional storage of the content data has been completed, and transmitting the message to the electronic terminal. A method of operating a content data management server that enables storage and management of content data through interworking with a two-dimensional code inserted into a precious metal product, the method comprising:
A plurality of precious metal products - Each of the plurality of precious metal products is assigned an n (n is a natural number of 2 or more) digit main identification number and k (k is a natural number of 2 or more) digit auxiliary identification number for identifying each precious metal product At the same time, the main identification number and the secondary identification number of each precious metal product are applied as inputs to a preset token generation function, and an authentication token, which is an output value calculated, is assigned, and each of the plurality of precious metal products contains the A two-dimensional code with information on the main identification number and information on the authentication token is printed - Composite information in which the secondary identification number for each and the authentication token for each of the plurality of precious metal products are stored in correspondence with each other maintaining a storage unit;
As the first content data is received from the electronic terminal of the user who purchased the first precious metal product, which is one of the plurality of precious metal products, the content storage requesting to store the first contents data in conjunction with the first precious metal product requesting transmission of a main identification number and an authentication token for the first precious metal product, which is inserted in the two-dimensional code printed on the first precious metal product, to the electronic terminal when the request is received;
As the two-dimensional code printed on the first precious metal product is scanned and recognized in the electronic terminal, the first main identification number and the first authentication are extracted from the electronic terminal through the two-dimensional code printed on the first precious metal product when the token is received, extracting an auxiliary identification number stored in correspondence with the same authentication token as the first authentication token from the composite information storage;
When a first auxiliary identification number is extracted from the composite information storage unit as an auxiliary identification number stored in correspondence to the same authentication token as the first authentication token, the first main identification number and the second identification number are used in the token generation function. checking whether a first operation result calculated when a first auxiliary identification number is applied as an input becomes the first authentication token;
When it is confirmed that the first operation result is the first authentication token, a predefined content data storage server is accessed, and the first content data, the first authentication token and the first auxiliary identification are sent to the content data storage server. requesting the content data storage server to store the first content data, the first authentication token, and the first auxiliary identification number in correspondence with each other while transmitting the number; and
When a feedback message is received from the content data storage server indicating that the storage of the first content data, the first authentication token, and the first auxiliary identification number is completed in correspondence with each other in the content data storage server, the first precious metal product generating a storage completion message indicating that the storage of the first content data has been completed by interworking with and transmitting the storage completion message to the electronic terminal
Method of operation of a content data management server comprising a. 8. The method of claim 7,
The token generation function is
When the n-digit main identification number and k-digit auxiliary identification number assigned to any one precious metal product among the plurality of precious metal products are applied as input, n numbers constituting the n-digit main identification number applied as input After generating an operation matrix having a size of nxk by calculating the Kronecker product between a column vector having as components and a row vector having k numbers constituting the k-digit auxiliary identification number applied as input , A method of operating a content data management server, characterized in that it is a function that calculates the Euclidean Norm of the operation matrix as an authentication token corresponding to any one of the precious metal products. 8. The method of claim 7,
After the storage completion message is transmitted to the electronic terminal, as the two-dimensional code printed on the first precious metal product is scanned and recognized in the electronic terminal, the first main identification number and the first authentication from the electronic terminal At the same time as the token is received, when a query request for the first content data stored in association with the first precious metal product is received, it is stored in correspondence with the same authentication token as the first authentication token from the complex information storage unit extracting an auxiliary identification number;
When the first auxiliary identification number is extracted from the complex information storage unit as an auxiliary identification number stored in correspondence to the same authentication token as the first authentication token, the first main identification number and the checking whether a second operation result calculated when a first auxiliary identification number is applied as an input becomes the first authentication token;
When it is confirmed that the second operation result becomes the first authentication token, the content data storage server is accessed, and the first auxiliary identification number and the first authentication token are sent to the content data storage server as the first content data transmitting a search request for the first content data while transmitting it as an index value for a search of ; and
The content data storage server searches the first content data stored in correspondence with the first auxiliary identification number and the first authentication token by using the first auxiliary identification number and the first authentication token as index values. transmitting the first content data to the electronic terminal when the first content data is received from the content data storage server as a search result
Method of operation of the content data management server further comprising. 10. The method of claim 9,
Transmitting the first content data to the electronic terminal comprises:
requesting to transmit the phone number of the mobile terminal possessed by the user to the electronic terminal when the first content data is received from the content data storage server as a search result;
when a first phone number is received from the electronic terminal to the phone number of the mobile terminal, randomly generating an encryption key and then encrypting the first content data with the encryption key; and
When the first content data is encrypted with the encryption key, a short message including the encryption key is generated, the short message is transmitted using the first phone number as the receiving side, and the encrypted first content data is transmitted. transmitting to the electronic terminal
including,
The electronic terminal is
When the encrypted first content data is received from the content data management server, an input window instructing input of a key for decrypting the encrypted first content data is displayed on the screen, and the user receives the encrypted first content data through the input window. , when the encryption key included in the short message is input, decrypting the first content data with the encryption key, and then playing the first content data in the electronic terminal . 10. The method of claim 9,
When the transmission of the first content data to the electronic terminal is completed, the current location information of the electronic terminal is received from the electronic terminal, and time information for when the first content data is transmitted to the electronic terminal is generated. , generating inquiry history information including the current location information, the time information, the first main identification number, and the first authentication token;
generating a transaction including the inquiry history information when the inquiry history information is generated; and
When the transaction is generated, a first node device that is any one of a plurality of node devices constituting the blockchain network is randomly selected, and the transaction is transmitted to the first node device, sending a registration request to the network
further comprising,
The first node device
When the registration request is received together with the transaction from the content data management server, a first block including the transaction is generated based on a previous block chained to the block chain data stored in the memory, and the first block is generated. By chaining a block to the block chain data, after the storage of the first block is completed, the first block is transferred through the block chain network to the remaining nodes except for the first node device among the plurality of node devices. Method of operation of a content data management server, characterized in that it propagates to devices. 8. The method of claim 7,
After the storage completion message is transmitted to the electronic terminal, as the second content data is received from the electronic terminal, a content addition storage request requesting additional storage of the second content data in conjunction with the first precious metal product is received when it is, requesting transmission of a main identification number and an authentication token for the first precious metal product, which is inserted in the two-dimensional code printed on the first precious metal product, to the electronic terminal;
As the two-dimensional code printed on the first precious metal product is scanned and recognized in the electronic terminal, the first main identification number and the second code extracted from the electronic terminal through the two-dimensional code printed on the first precious metal product when the first authentication token is received, extracting an auxiliary identification number stored in correspondence with the same authentication token as the first authentication token from the composite information storage;
When the first auxiliary identification number is extracted from the complex information storage unit as an auxiliary identification number stored in correspondence to the same authentication token as the first authentication token, the first main identification number and the checking whether a third operation result calculated when a first auxiliary identification number is applied as an input becomes the first authentication token;
When it is confirmed that the third operation result becomes the first authentication token, the second content data is transferred to the first content data storage server by accessing the content data storage server and transmitting the second content data to the content data storage server. requesting additional storage in correspondence with the authentication token and the first auxiliary identification number; and
When a feedback message is received from the content data storage server indicating that additional storage of the second content data corresponding to the first authentication token and the first auxiliary identification number is completed, the second content data is linked with the first precious metal product and the second generating an additional storage completion message indicating that the additional storage of the content data has been completed, and transmitting the additional storage completion message to the electronic terminal
Method of operation of the content data management server further comprising. 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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