KR20240058734A - Method and device for preventing forgery using ip tracking and did information of contents related to blockchain-based nft - Google Patents

Abstract

A method and device for preventing forgery and falsification using IP tracking and DID information of content related to blockchain-based NFT are disclosed. The forgery prevention method of the present invention includes the steps of providing a download service of content related to a blockchain-based NFT issued for content registered on a platform to a user terminal, which is a device of at least one user accessing the platform, providing a download service. In the process, performing a qualification verification procedure for the user terminal using the communication information and verifiable credential information of the user terminal and related to blockchain-based NFT provided to the user terminal based on the results of the qualification verification process It includes managing the use of download services for content.

Description

Method and device for preventing forgery and falsification using IP tracking and DID information of content related to blockchain-based NFT {METHOD AND DEVICE FOR PREVENTING FORGERY USING IP TRACKING AND DID INFORMATION OF CONTENTS RELATED TO BLOCKCHAIN-BASED NFT}

The present invention relates to a method and device for preventing forgery and falsification using IP tracking and DID information of content related to blockchain-based NFT. More specifically, it relates to content related to NFT by issuing blockchain-based NFT for content registered on the platform. This relates to a method and device for protecting content by verifying whether illegal downloading or downloading of content is justified in the process of providing download services.

Recently, as the music industry has developed globally, platforms supporting services related to music have been created, and through such platforms, rights holders who own the copyright of music are securing profits for the copyright of the music. However, in the case of the market related to the music industry, it is mainly operated by large entertainment companies and distribution operators, so rights holders who hold the copyright of music sources are subject to unequal distribution of copyright fees (e.g., music source fees). .

Meanwhile, blockchain-based NFT (Non-fungible token) is being focused on as a technology that can clearly guarantee ownership of assets along with authentication of ownership such as copyright. NFT can refer to a new type of digital assetization-related technology that grants a unique digital certificate for an asset using blockchain-based encryption technology.

In this way, blockchain-based NFT, which can clearly guarantee ownership of assets such as copyrights and support direct transactions to various users, appears to be applicable to the music industry. However, to date, there is a problem that there are not many or almost no music platforms using blockchain-based NFTs or services that support music-related services.

In addition, platforms that provide content-related services such as music using blockchain-based NFTs are defenseless against downloading illegal content, and even if the platform is activated, the various contents registered on the platform and the copyright of the content are protected. There is a problem that absolutely requires a way to protect it.

One purpose of the present invention to solve the above problems is to issue blockchain-based NFTs for content registered on the platform and provide a download service for content related to NFTs, thereby providing justification for illegal downloading or downloading of content. The purpose is to provide a content management method to protect content by verifying whether it is available or not.

Another purpose of the present invention to solve the above problems is to issue blockchain-based NFTs for content registered on the platform and provide a download service for content related to NFTs, thereby providing justification for illegal downloading or downloading of content. The purpose is to provide a content management device to protect content by verifying whether or not it is available.

The platform's content management method using blockchain-based NFT according to an embodiment of the present invention to achieve the above purpose provides services related to blockchain-based NFT (Non-Fungible Token) issued for content. A content management method performed in a content management device of a platform that provides a download service of content related to a blockchain-based NFT issued for content registered on the platform of at least one user accessing the platform. Providing the download service to a user terminal, performing a qualification verification procedure for the user terminal using communication information and verifiable credential (VC) information of the user terminal in the process of providing the download service. And it includes managing the use of a download service for content related to the blockchain-based NFT provided to the user terminal based on the results of the qualification verification procedure.

Here, the step of performing the qualification verification procedure primarily determines whether the download service provided to the user terminal is legitimate based on the IP information of the user terminal and a plurality of information items included in the blockchain-based DID. It may include a step of determining and a step of secondarily determining whether the download service is legitimate based on the verifiable credentials for the user terminal for which the download service is determined to be legitimate.

Here, the primary step of determining whether the IP address of the user terminal is legitimate is to verify whether the IP address of the user terminal is legitimate by verifying the IP address corresponding to the IP information through which the user terminal accesses the platform based on preset permitted IP information. Confirming whether the ownership of the DID of the user terminal is legitimate based on confirmation of authentication information included in the DID of the user terminal for which the IP address is determined to be legitimate, and It may include the step of checking service information included in the blockchain-based DID for the user terminal whose ownership is determined to be legitimate, and primarily determining whether the download service of the user terminal is legitimate based on the service information. You can.

Here, the step of checking whether the IP address is legitimate involves checking an IP database created by collecting in advance the IP addresses accessed by a plurality of user terminals that are judged to be legitimately qualified to use the download service on the platform. It may include checking whether the IP address of the user terminal is legitimate by checking whether an IP address identical to the IP address of the user terminal exists among a plurality of IP addresses pre-stored in the IP database.

Here, in the step of checking whether the IP address is legitimate, if the IP address is judged to be invalid, the IP address judged to be invalid is changed to an IP address that is not allowed to access the platform further. It can be stored separately.

Here, the step of checking whether the ownership is legitimate is by checking the authentication information of the DID document included in the blockchain-based DID for the user terminal, and confirming the ownership of the DID of the user terminal. You can check whether it is a political party or not.

Here, in the step of checking whether the ownership is legitimate, if it is determined that the ownership of the DID of the user terminal is not legitimate, the DID of the user terminal is classified into DIDs whose ownership is abnormal to check whether the additional DID is legitimate. To prevent this, it can be stored in the DID database of the platform.

Here, the first step of determining whether the legitimacy is justified is to check the existence of a download service for content related to the NFT of the platform among a plurality of services included in the service information of the DID and based on the confirmed existence. It is possible to first determine whether the download service is legitimate.

Here, the step of primarily determining whether the download service for the user terminal is legitimate is based on the IP address corresponding to the IP information of the user terminal when it is determined that the primary legitimacy of the download service for the user terminal is not legitimate. Tracking a user terminal and confirming the type of content of the download service provided to the user terminal, block content having the same type as the identified type to protect the content provided to the user terminal through the download service It may include the step of generating (block content) and transmitting the generated block content to the user terminal so that content provided through the download service is overwritten through the block content.

Here, the step of secondarily determining whether the download service is legitimate includes requesting verifiable presentation (VP) information of verifiable credential information from the user terminal that is determined to be primarily legitimate, and It may include the step of secondarily determining whether the download service for the user terminal is legitimate based on the verification result of verifiable data information received from the user terminal.

Here, in the step of secondarily determining whether the download service for the user terminal is justified, the result of the qualification verification procedure for the user terminal is determined to be legitimate with no abnormalities. And, if it is determined that the secondary legitimacy of the download service for the user terminal is not legitimate, the result of the qualification verification procedure for the user terminal may be determined to be legitimate with no abnormalities.

Here, the step of managing the use of the download service is watermarking (used to protect the content on the platform) for content provided through the download service to a user terminal for which the result of the qualification verification procedure has been determined to be legitimate. watermarking) processing can be performed.

According to the present invention, the content management method of the platform using blockchain-based NFT has the effect of ensuring the stability and reliability of the download service provided by the platform that provides services related to content issued by blockchain-based NFT. In addition, it has the effect of clearly protecting copyrighted content.

Figure 1 is a hardware block diagram of a content management device that performs a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.
Figure 2 is a conceptual diagram showing an environment in which a content management method of a platform using a blockchain-based NFT is performed according to an embodiment of the present invention.
Figure 3 is a flowchart showing a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.
Figure 4 is a flowchart showing a method of performing a qualification verification procedure in the content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.
Figure 5 is a flowchart illustrating a method of determining whether a download service is primarily justified in a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.
Figure 6 is a flowchart illustrating a method for checking the legitimacy of an IP address in the content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.
Figure 7 is a flowchart showing a case where the download service is not primarily justified in the content management method of the platform using blockchain-based NFT according to an embodiment of the present invention.
Figure 8 is a flowchart illustrating a method for determining whether a download service is secondaryly justified in the content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components.

Terms such as first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component without departing from the scope of the present invention, and similarly, the second component may also be named a first component. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

The content management method of the platform using a blockchain-based NFT according to an embodiment of the present invention may be provided in connection with the platform (or the server of the platform, etc.), and more specifically, the platform. can issue blockchain-based NFTs for content registered on the platform (for example, it can mean copyrightable works such as music and games) and provide download services related to the content. It can mean a platform.

For example, a platform can accept multiple users as members, and multiple users who have registered as members can access the platform through a blockchain-based network using a user terminal, which can refer to their own device. , you can use the download service for content related to blockchain-based NFTs registered on the platform. At this time, the user may be required to obtain legitimate qualifications for the download service (for example, authority that can be obtained through payment for the download service, etc.).

Figure 1 is a hardware block diagram of a content management device that performs a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.

Referring to FIG. 1, a content management device 100 that performs a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention includes at least one processor (processor, 110) and a memory 120 that stores instructions that instruct at least one processor to perform at least one step.

Here, the at least one processor 110 is a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to embodiments of the present invention are performed. It can mean. Each of the memory 120 and the storage device 160 may be comprised of at least one of a volatile storage medium and a non-volatile storage medium. For example, the memory 120 may be comprised of at least one of read only memory (ROM) and random access memory (RAM).

In addition, the content management device 100 that performs the platform content management method using the blockchain-based NFT of the present invention may include a transceiver 130 that performs communication through a wireless network. In addition, the content management device 100, which performs a platform content management method using blockchain-based NFT, may further include an input interface device 140, an output interface device 150, and a storage device 460. . Each component included in the server 100 is connected by a bus 170 and can communicate with each other.

Here, at least one step may mean a step related to the content management method of the platform using a blockchain-based NFT according to an embodiment of the present invention, and more specifically, a step using the blockchain-based NFT of the present invention. Steps related to the operation method of the content management device 100 that performs the content management method of the platform may be further included.

Hereinafter, a platform using blockchain-based NFT performed in the content management device 100 that performs the content management method of the platform using blockchain-based NFT according to an embodiment of the present invention described with reference to FIG. 1. The environment related to the content management method can be described in more detail with reference to FIG. 2 .

Figure 2 is a conceptual diagram showing an environment in which a content management method of a platform using a blockchain-based NFT is performed according to an embodiment of the present invention.

Referring to FIG. 2, the content management method of the platform using blockchain-based NFT according to an embodiment of the present invention can be performed in the content management device 100 described with reference to FIG. 1, and in more detail, It can be performed in conjunction with the user terminal 300 and the server 400 in the form of the content management device 200 shown in FIG. 2.

Here, the content management device 100 described with reference to FIG. 1 may be similar or identical to the content management device 200 described with reference to FIG. 2, and the user terminal 300 connects to a blockchain-based network. It may refer to a user's device that can access a possible platform. At this time, the platform may mean a platform operated or managed by the server 400 described with reference to FIG. 2, and the platform according to an embodiment of the present invention refers to a platform operated or managed by the server 400. It can mean.

Meanwhile, the content management device 200 that performs the content management method of the platform using blockchain-based NFT according to an embodiment of the present invention communicates with the user terminal 300 and the server 400. They may be connected, and through this, they can transmit or receive information required to perform the platform's content management method using blockchain-based NFT.

Additionally, in FIG. 2, the content management device 200 is described as a separate element from the server 400, but it may not necessarily be limited thereto. In other words, the content management device 200 may be formed to be included in the server 400, and in this case, a plurality of functions performed by the content management device 200 are converted into a plurality of modules that perform each function. It may be formed to be included.

Below, a block according to an embodiment of the present invention in the content management device 100 described with reference to FIG. 1, the content management device 200 described with reference to FIG. 2, the user terminal 300, and the server 400. The specific process in which the content management method of the platform using chain-based NFT is performed can be explained in more detail with reference to FIGS. 3 to 8.

Figure 3 is a flowchart showing a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.

Referring to FIG. 3, the content management method of the platform using a blockchain-based NFT according to an embodiment of the present invention includes the content management device 100 described with reference to FIG. 1 and the content management described with reference to FIG. 2. It may be performed in the device 200, the user terminal 300, and the server 400, and more specifically, may be performed based on the leading operation of the content management devices 100 and 200.

First, a content management device that performs a platform content management method using blockchain-based NFT according to an embodiment of the present invention provides a download service for content related to blockchain-based NFT issued for content registered on the platform. It can be provided to a user terminal, which is the device of at least one user accessing the platform (S100).

Specifically, the platform may refer to a platform that can register content such as music and games, and more specifically, issues a blockchain-based NFT containing information such as copyright and ownership of the registered content. It can mean a platform that can do it. At this time, operations performed on the platform may be performed through the server of the platform, which has been previously described with reference to FIG. 2.

In this way, the platform's server can issue blockchain-based NFTs for content registered on the platform, and can refer to at least one user's device that accesses the platform to provide a download service for content related to the issued NFT. It can be provided through a user terminal. Here, the user terminal may mean the user terminal 300, which has been previously described with reference to FIG. 2.

For example, a user who wishes to use the download service of content related to NFT issued on the platform can access the platform's server through a blockchain-based network through the user terminal, which is the user's device, and use the NFT issued on the platform You can use the download service for related content.

At this time, in the process of providing a download service, the content management device may perform a qualification verification procedure for the user terminal using communication information and verifiable credential (VC) information of the user terminal (S200).

Here, the specific process of performing a qualification verification procedure for the user terminal using the communication information and verifiable credential information of the user terminal in relation to the process of providing a download service in the content management device will be described with reference to FIG. 4 below. It can be explained in detail.

Figure 4 is a flowchart showing a method of performing a qualification verification procedure in the content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.

Referring to Figure 4, a content management device that performs a platform content management method using a blockchain-based NFT provides information about the user terminal based on a plurality of information items included in the IP information of the user terminal and the blockchain-based DID. It is possible to initially determine whether the download service provided is legitimate (S210).

In other words, the communication information used to perform the qualification verification process in the content management device may mean information related to IP information and blockchain-based DID, and in the content management device, the IP information of the user terminal and blockchain-based The specific process of initially determining whether the download service provided to the user terminal is legitimate based on a plurality of information items included in the DID can be described in more detail below with reference to FIG. 5.

Figure 5 is a flowchart illustrating a method of determining whether a download service is primarily justified in a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.

Referring to Figure 5, a content management device that performs a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention is an IP that the user terminal connects to the platform based on preset permitted IP information. It is possible to check whether the IP address of the user terminal is legitimate by verifying the IP address corresponding to the information (S211).

Here, the specific process of confirming whether the IP address of the user terminal is legitimate by verifying the IP address corresponding to the IP information through which the user terminal accesses the platform based on the allowed IP information preset in the content management device is described in Figure 6 below. It can be explained in more detail with reference to .

Figure 6 is a flowchart illustrating a method for checking the legitimacy of an IP address in the content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.

Referring to Figure 6, a content management device that performs a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention is a plurality of users who are judged to be legitimately qualified to use a download service on the platform. You can check the IP database created by collecting the IP addresses to which the terminals connect in advance (S211-1).

Specifically, the content management device allows at least one user who is judged to be legitimately qualified to use the service related to the content for which the NFT has been issued among the plurality of users accessing the platform using the blockchain-based NFT to access the platform. IP addresses can be collected. Afterwards, the content management device may store the collected IP addresses of multiple users in the IP database of the platform.

In other words, the IP database may store multiple IP addresses that can be determined to have legitimate qualifications to use services related to content registered on the platform, and the content management device may store IP addresses that are determined in real time. There may be a situation where the IP database is being updated based on whether the IP is legitimate.

Afterwards, the content management device can check whether the IP address of the user terminal is legitimate by checking whether an IP address identical to the IP address of the user terminal exists among a plurality of IP addresses pre-stored in the IP database (SS11-2) .

Specifically, the content management device can check the IP address of the user terminal that needs to confirm whether the IP address is legitimate, and can check which IP address is the same as the confirmed IP address among the plurality of IP addresses stored in the IP database. Thereafter, the content management device may determine that the IP address of the user terminal is legitimate if an IP address identical to the confirmed IP address exists among the plurality of IP addresses stored in the IP database.

On the other hand, if there is no IP address identical to the confirmed IP address among the plurality of IP addresses stored in the IP database, the content management device may determine that the IP address of the corresponding user terminal is invalid. Thereafter, if the content management device determines that the IP address is not legitimate, the content management device may classify and store the IP address determined to be invalid in the IP database as an IP address that is not permitted to access the platform further.

Through this method, a content management device that performs a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention can confirm whether the user's IP address is legitimate.

Again, referring to Figure 5, the content management device that performs the content management method of the platform using blockchain-based NFT according to an embodiment of the present invention is an authentication (authentication) included in the DID of the user terminal whose IP address is determined to be legitimate. Based on confirmation of authentication) information, it can be confirmed whether the ownership of the DID of the user terminal is legitimate (S212).

Specifically, the content management device can check the authentication information of the DID document included in the blockchain-based DID for the user terminal, and use the authentication information of the confirmed DID document to You can check whether the ownership of the DID is legitimate.

For example, the content management device can check the content contained in the authentication information of the DID document based on the public key of the DID document, and whether the user terminal's ownership of the DID is legitimate based on the confirmed authentication information. You can check. At this time, if the public key is not included in the DID document, the content management device may determine whether the ownership of the corresponding DID is legitimate.

In this way, if the content management device determines that the ownership of the DID of the user terminal is not legitimate, it divides the DID of the user terminal into DIDs whose ownership is abnormal and records it in the platform's DID database to prevent the legitimacy of additional DIDs from being confirmed. You can save it.

On the other hand, if the content management device determines that the user terminal's DID ownership is legitimate, it can classify the user terminal's DID into DIDs with normal ownership and store them in the platform's DID database so that the legitimacy of additional DIDs is not confirmed.

Meanwhile, the content management device checks the service information included in the blockchain-based DID for user terminals whose ownership of the DID is determined to be legitimate, and primarily determines whether the download service of the user terminal is legitimate based on the service information. You can do it (S213).

Specifically, the content management device checks the existence of a download service for content related to the NFT of the platform among a plurality of services included in the DID's service information and primarily determines whether the download service is legitimate based on the confirmed existence. You can judge.

In other words, the service information included in the blockchain-based DID document may contain information about a plurality of services that can be interacted with in connection with the corresponding DID, and the content management device is related to the content used in the user terminal. By checking whether a download service exists, it is possible to first determine whether the download service for the user terminal is legitimate.

At this time, if a download service related to the content used by the user terminal exists in the service information of the blockchain-based DID document, the content management device can determine whether the download service for the user terminal is primarily justified. Meanwhile, if a download service related to the content used by the user terminal does not exist in the service information of the blockchain-based DID document, the content management device determines whether the download service for the user terminal is primarily justified. You can.

Here, when the content management device determines that the download service provided to the user terminal is primarily justified, the specific process that is additionally performed can be described in more detail with reference to FIG. 7 below.

Figure 7 is a flowchart showing a case where the download service is not primarily justified in the content management method of the platform using blockchain-based NFT according to an embodiment of the present invention.

Referring to FIG. 7, the content management device that performs the content management method of the platform using blockchain-based NFT according to an embodiment of the present invention determines whether the primary legitimacy of the download service for the user terminal is not legitimate. If determined, the type of content of the download service provided to the user terminal can be confirmed by tracking the user terminal based on the IP address corresponding to the IP information of the user terminal (S213-1).

Specifically, the content management device can confirm the address of the user terminal by checking the IP address of the user terminal for which the primary legitimacy of the download service is determined to be not legitimate. Thereafter, the content management device may check the type of content provided or being provided to the user terminal through the download service based on the address of the confirmed user terminal. For example, the type of content may refer to types of sound source content, video content, and image content.

Thereafter, the content management device may generate block content having the same type as the identified type in order to protect the content provided to the user terminal through the download service (S213-2).

That is, when the type of content provided or being provided to the user terminal is sound source content that is a sound source type, the content management device can generate block content having the sound source type. Additionally, when the type of content provided or being provided to the user terminal is video content of the video type, the content management device may generate block content having the video type. Additionally, when the type of content provided or being provided to the user terminal is image content of an image type, the content management device may generate block content having an image type.

Afterwards, the content management device can transmit the block content to the user terminal and process it so that the content provided through the download service is overwritten through the block content (S213-3).

Specifically, the content management device can replace content currently being provided to the user terminal through a download service with block content and transmit it, and process the transmitted block content so that it can be provided to the user terminal. Accordingly, the content management device can protect content provided or being provided through a download service.

For example, when the type of content provided or being provided to the user terminal is sound source content that is a sound source type, the content management device may generate block content having the sound source type. Thereafter, when sound source content is being output and played on the user terminal, the content management device can control block content to be output and played.

On the other hand, when sound source content is being downloaded from the user terminal through a download service, the content management device controls to prevent additional sound content from being downloaded and controls block content to be downloaded to the user terminal instead of the sound source content. You can.

Again, referring to FIG. 4, the content management device that performs the content management method of the platform using blockchain-based NFT according to an embodiment of the present invention can verify the user terminal for which the primary download service is judged to be legitimate. Based on the credentials, it is possible to secondarily determine whether the download service is legitimate (S220).

Here, the specific process of secondarily determining whether the download service is legitimate based on verifiable credentials for a user terminal for which the primary download service has been determined to be legitimate in the content management device will be described in more detail with reference to FIG. 8 below. It can be explained clearly.

Figure 8 is a flowchart illustrating a method for determining whether a download service is secondary in the content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention.

Referring to Figure 8, a content management device that performs a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention provides a credential that can be verified by a user terminal for which the download service is primarily determined to be legitimate. You can request verifiable presentation (VP) information (S221).

Specifically, the content management device may request transmission of verifiable data (VP) information, which is information required to verify the qualifications of the user terminal, from the verifiable credential (VC) information of the user terminal to the user terminal. Accordingly, the user terminal may receive a request for verifiable data (VP) information that can be generated or extracted based on the verifiable credential (VC) from the content management device.

Afterwards, the user terminal extracts and verifies the information necessary to verify the qualifications of the download service (for example, the user's name, user ID, and user's payment history, etc.) based on the user's verifiable credentials (VC). Possible data (VP) information can be generated. Thereafter, the user terminal may transmit the generated verifiable data information to the content management device.

Thereafter, the content management device can secondarily determine whether the download service for the user terminal is legitimate based on the verification result of verifiable data information received from the user terminal (S222).

Here, the content management device can secondarily determine whether the download service for the user terminal is legitimate by verifying verifiable data received from the user terminal through the platform server in a blockchain-based network.

At this time, if the content management device determines that the secondary legitimacy of the download service for the user terminal is legitimate, it may determine that the result of the qualification verification procedure for the user terminal is legitimate with no abnormalities. On the other hand, if the content management device determines that the secondary legitimacy of the download service for the user terminal is not legitimate, it may determine that the result of the qualification verification procedure for the user terminal is not legitimate with no abnormalities.

Again, referring to Figure 3, a content management device that performs a content management method of a platform using a blockchain-based NFT according to an embodiment of the present invention is a blockchain provided to the user terminal based on the results of the qualification verification procedure. The use of download services for content related to NFT-based can be managed (S300).

Specifically, the content management device may perform watermarking processing, which is used to protect the content on the platform, on content provided through a download service to a user terminal that has been determined to be legitimate with no abnormalities as a result of the qualification verification process. there is.

In other words, the content management device performs watermarking processing that can ultimately be tracked or managed by the platform for content provided through a download service to a user terminal that has been determined to be legitimate, with no abnormalities as a result of the qualification verification process. Management of content judged to be secondary can be continuously performed.

Meanwhile, the content management device may register the user terminal as an abnormal user terminal in the platform's user database if the secondary legitimacy of the user terminal is determined to be unjustified, and more specifically, the user terminal may be registered as an abnormal user terminal in the platform's user database. By matching the name, IP address, and DID of the user terminal and storing them in the user database, it is possible to prevent additional download services from being provided to the user terminal.

Methods according to the present invention may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer-readable medium. Computer-readable media may include program instructions, data files, data structures, etc., singly or in combination. Program instructions recorded on a computer-readable medium may be specially designed and constructed for the present invention or may be known and usable by those skilled in the art of computer software.

Examples of computer-readable media may include hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, etc. Examples of program instructions may include machine language code such as that created by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc. The above-described hardware device may be configured to operate with at least one software module to perform the operations of the present invention, and vice versa.

Additionally, the above-described method or device may be implemented by combining all or part of its components or functions, or may be implemented separately.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art may make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can do it.

100: content management device 110: processor
120: memory 130: transmitting and receiving device
140: input interface device 150: output interface device
160: storage device 170: bus
200: Service provision server 300: User terminal
400: server

Claims (4)

A content management method performed in a content management device of a platform that provides services related to blockchain-based NFT (Non-Fungible Token) issued for content,
Providing a download service of content related to a blockchain-based NFT issued for content registered on the platform to a user terminal, which is a device of at least one user accessing the platform;
In the process of providing the download service, performing a qualification verification procedure for the user terminal using communication information and verifiable credential (VC) information of the user terminal; and
Including the step of managing the use of a download service for content related to the blockchain-based NFT provided to the user terminal based on the results of the qualification verification procedure,
The step of performing the qualification verification procedure is,
Primarily determining whether the download service provided to the user terminal is legitimate based on a plurality of information items included in the IP information of the user terminal and the blockchain-based DID; and
A content management method comprising the step of secondarily determining whether the download service is legitimate based on the verifiable credentials for the user terminal for which the download service is determined to be legitimate. In claim 1,
The first stage of determining whether the above is justifiable is,
Verifying the IP address corresponding to the IP information through which the user terminal accesses the platform based on preset permitted IP information to determine whether the IP address of the user terminal is legitimate;
Confirming whether ownership of the DID of the user terminal is legitimate based on confirmation of authentication information included in the DID of the user terminal for which the IP address is determined to be legitimate; and
For the user terminal whose ownership of the DID is determined to be legitimate, the service information included in the blockchain-based DID is checked and the user terminal's download service is determined primarily based on the service information. A content management method, characterized in that it includes steps. In claim 2,
The step of checking whether the IP address is legitimate is,
Checking an IP database created by collecting in advance IP addresses accessed by a plurality of user terminals that are determined to be legitimately qualified to use the download service on the platform; and
Characterized in that it includes the step of confirming whether the IP address of the user terminal is legitimate by checking whether an IP address identical to the IP address of the user terminal exists among a plurality of IP addresses pre-stored in the IP database. How to manage. In claim 3,
The first stage of determining whether the above is justifiable is,
If the primary legitimacy of the download service for the user terminal is judged to be unjustified,
Tracking the user terminal based on the IP address corresponding to the IP information of the user terminal and confirming the type of content of the download service provided to the user terminal;
generating block content having the same type as the confirmed type to protect content provided to the user terminal through the download service; and
A content management method comprising transmitting the generated block content to the user terminal and processing the content provided through the download service to be overwritten through the block content.