KR20200000659A - System for Resaling Digital Contents by using BlockChain Technology - Google Patents

Abstract

The present invention relates to a digital content resale system using blockchain technology, which comprises: a DRM copyright server encrypting and generating a digital content; and a digital content providing server purchasing the encrypted digital content and the corresponding first copyright from the DRM copyright server, and selling the encrypted digital content and first copyright to a first user terminal. The first user terminal resells the digital content purchased from the digital content providing server to a second user terminal; the DRM copyright server, the digital content providing server, and the first and second user terminals are interconnected by a blockchain network to distribute and share transaction history information on the digital content; when a transaction is requested for the digital content and a secondary copyright from the first user terminal to the second user terminal, and each hash value of the transaction history information for the corresponding digital content coincides with each other, the fee for the secondary copyright of the corresponding digital content from the second user terminal is provided for the digital content providing server; and the digital content is transmitted from the first user terminal to the second user terminal and the secondary copyright is transmitted from the DRM copyright server to the second user terminal such that mutual resale transactions between user terminals for the digital content are performed. The present invention can simplify a reselling process of digital contents between users.

Description

Digital Content Resale System using Blockchain Technology {System for Resaling Digital Contents by using BlockChain Technology}

The present invention relates to a digital content copyright management system, and more particularly, to simplify the resale process of digital content between users, to provide digital content without hacking and forgery, and to transparently manage and settle the fee and transaction costs, The present invention relates to a digital content resale system using blockchain technology.

As is well known, the digital content industry has been developed to provide various digital information according to the needs of consumers.

However, the illegal piracy and unauthorized distribution of digital contents cause economic loss to digital contents copyright holders, producers and providers, seriously lower the creative will, and ultimately impede the development of the digital contents industry.

In addition, the consumption cycle of digital content purchased by consumers is shortened due to the change in trend and the sharp decrease in utility due to consumption. Therefore, there is a technology that allows consumers to directly resell digital contents while protecting copyrights of digital contents. It is proposed.

As a prior art related to resale, Korean Patent Laid-Open Publication No. 10-2007-0015488 (user-generated content and digital content continuous circulation transaction method based on digital copyright management) is disclosed. Referring to FIG. 1, DRM (Digital Rights Management) Reselling, direct selling, brokering and reselling digital content in the event that the customer has not used digital content granted intellectual property rights on the basis of copyright related technologies of Korea, Korea Music ID (KMID), FingerPrint, Watermark and Public Key Infrastructure The auction transaction method allows the digital content to be traded or exchanged.

However, in order to resell the digital content, it is cumbersome to register a separate resale transaction site and register the digital content, and it is exposed to the risk of hacking by paying at the billing payment DB server linked with the digital content transaction server. It is not easy to build a resale system because it needs to be approved for the application and the transparency of the transaction is not secured.

Korean Patent Publication No. 10-2007-0015488 (User-generated and digital content continuous circulation transaction method based on digital copyright management) (Publication date 2007. 02. 05)

The technical problem of the present invention is to simplify the resale process of digital content between users, to provide digital content without hacking and forgery, and to resell digital content using blockchain technology, which allows payment of royalties and transaction costs. To provide a system.

In order to achieve the above object, the present invention, the DRM copyright server for encrypting and generating digital content, the digital content to purchase the encrypted digital content and the corresponding primary copyright from the DRM copyright server to sell to the first user terminal And a providing server, wherein the first user terminal resells the digital content purchased from the digital content providing server to a second user terminal, wherein the DRM copyright server, the digital content providing server, and the first and second The user terminal is interconnected through a blockchain network to distribute and share transaction history information for digital content, and to request digital content and secondary copyright transactions from the first user terminal to the second user terminal. The second user if the hash values of the transaction history information for each other coincide with each other; Provides a fee for the second copyright of the digital content from the end to the digital content providing server, the digital content is transmitted from the first user terminal to the second user terminal and the second user terminal from the DRM copyright server The second copyright is transmitted to provide a digital content resale system using a blockchain technology in which mutual resale transactions are performed between user terminals for digital content.

Here, the transaction details information, the copyright details including the copyright holder name for the digital content, the digital content details including the genre information, the copyright expiration date, the resale time limit or the resale expiration date information Information and detailed information related to the first and second user terminals having purchased the digital content.

In addition, when reselling the digital content between the user terminals, the second user terminal provides the transaction cost to the digital content providing server to pay the virtual currency by the block chain network, the digital content providing server is the first user The terminal may provide the settled transaction fee, and the second user terminal may provide a fee for the second copyright to the DRM copyright server or the digital content providing server in a virtual currency by a blockchain network.

In addition, the DRM copyright server encrypts the corresponding digital content by a DRM packager, and upon request for playback from the first or second user terminal, the DRM copyright server for the DRM copyright for the digital content, the first or second user terminal. It may further include a DRM copyright server to issue and transmit.

In addition, the DRM copyright server may be provided to the digital content providing server by dividing the attribute on whether to resell the digital content.

In addition, the first user terminal may be resold to the second user terminal only after a certain period of time or after a predetermined number of times of play after purchasing the digital content and the corresponding second copyright purchased from the digital content providing server. .

In addition, the N-th user terminal sequentially resells the digital content to the N-th user terminal, and the digital content providing server may directly repurchase the digital content and the corresponding copyright from the first to Nth user terminals.

In addition, when the digital content from the first user terminal to the second user terminal and a second copyright request for a transaction, if each hash value of the transaction history information for the corresponding digital content coincide with each other, the DRM copyright server or the digital server. The digital content may be transmitted from the content providing server to the second user terminal.

In addition, when reselling the digital content, the first user terminal may share the digital content information through SNS to promote or promote the digital content.

According to the present invention, there is an effect of simplifying the resale process of digital content between users, providing digital content without hacking and forgery, and paying a royalty and transaction cost.

In addition, due to the distributed sharing of transaction history information on digital content, it is impossible to hack and forgery the actual possession of digital content, details of purchase and resale, transaction costs and copyright royalties due to resale, and When reselling transactions between users, the security can be secured.

In addition, by sharing the corresponding digital content information through the SNS to promote or promote, there is an effect that can promote and activate the resale transaction for the digital content.

Furthermore, even when reselling digital content between users, the DRM copyright server or digital content providing server can control the secondary copyright on the digital content through the blockchain, thereby limiting the indiscriminate copying and distribution of the digital content. have.

1 illustrates a user-created content and a digital content continuous circulation transaction method based on digital copyright management according to the prior art.
Figure 2 illustrates a schematic configuration diagram of a digital content resale system using the blockchain technology according to a preferred embodiment of the present invention.
FIG. 3 illustrates a sequential resale configuration of the digital content resale system using the blockchain technology of FIG. 2.
FIG. 4 illustrates a schematic flowchart of resale by a digital content resale system utilizing the blockchain technology of FIG. 2.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention having the above-described features.

Figure 2 illustrates a schematic configuration diagram of a digital content resale system using the blockchain technology according to a preferred embodiment of the present invention.

Referring to FIG. 2, the digital content resale system utilizing the blockchain technology according to the preferred embodiment of the present invention generally includes a DRM copyright server 110, a digital content providing server 120, and first and second devices. It consists of user terminals 131 and 132.

The DRM copyright server 110 and the digital content providing server 120 manage digital contents of the copyright holder, which is required for copyright of various digital contents including music, images, digital pictures or documents (E-BOOK). And a hash processing module 121 for processing the information by a hashing algorithm to generate a corresponding hash value, and a DB 122 for categorizing and storing the hash value and the digital content generated by encryption.

Here, the DRM copyright server 110 and the digital content providing server 120 classify the attribute for resale of digital content and assign the attribute of digital content or hash value to whether the resale is possible or not possible between user terminals. Along with the digital content providing server 120.

The digital content providing server 120 may purchase the encrypted digital content and the corresponding primary copyright from the DRM copyright server 110 and stream or download them to the first user terminal 131 to substantially use the digital content. Optionally, the fee for the corresponding digital content from the first user terminal 131 may be provided to the DRM copyright server 110 or the digital content providing server 120 by a virtual currency through a blockchain network and settled. .

Meanwhile, the first user terminal 131 may resell the digital content purchased from the digital content providing server 120 and the corresponding second copyright to the second user terminal 132 after a certain period of time or after playing a predetermined number of times. . Here, the second copyright means the corresponding copyright of the digital content according to the transaction between the user terminals, and the copyright transferred from the DRM copyright server 110 to the digital content providing server 120 is the primary copyright, and the transaction between the user terminals. Copyright is divided into secondary copyright, the secondary copyright is provided to the second user terminal 132 from the digital content providing server 120.

Here, the configuration in which the blockchain for reselling the digital content and the corresponding second copyright from the first user terminal 131 to the second user terminal 132 will be described in detail as follows.

The DRM copyright server 110, the digital content providing server 120, and the first and second user terminals 131 and 132 are interconnected by a blockchain network to distribute and share transaction history information on the corresponding digital content.

Here, the transaction information includes copyright information including copyright name of digital content, digital content detail information including genre information, copyright expiration date, resale time limit or resale expiration date information. And detailed information related to the first and second user terminals that purchased the digital content.

For example, the detailed information of the copyright holder includes the name of the copyright holder, the date of the copyright registration, and the address, contact information and URL information of the copyright holder, and the digital content detail information includes detailed genre information of music, images, photos or documents, and encoding information. The detailed information related to the user terminal includes device information, playability, and OS information of the user terminal.

First, at the time of requesting a transaction for the digital content from the first user terminal 131 to the second user terminal 132 and the second copyright, it is determined whether the hash values of the transaction history information for the corresponding digital content coincide with each other.

That is, through the blockchain network, the transaction history information of the digital content distributed to the DRM copyright server 110, the digital content providing server 120, the first user terminal 131 and the second user terminal 132 is shared. If all of the hash values match and are determined to match, the corresponding digital content is transmitted from the first user terminal 131 to the second user terminal 132 and 2 from the DRM copyright server 110 to the second user terminal 132. The second copyright can be transferred, so that mutual resale transactions between user terminals for digital content can be performed. Alternatively, the digital content may be directly transmitted from the DRM copyright server 110 or the digital content providing server 120 to the second user terminal 132.

Here, when reselling the digital content between user terminals, the second user terminal 132 provides the transaction cost to the digital content providing server 120 to pay the virtual currency by the blockchain network, digital content providing server 120 By providing the transaction cost previously paid to the first user terminal 131, the digital content providing server 120 can control the transaction cost payment according to the resale.

Alternatively, the second user terminal 132 provides the transaction cost to the first user terminal 131 by providing virtual currency by the blockchain network, and the second user terminal 132 blocks the royalty fee for the second copyright. It can be provided directly to the DRM copyright server 110 or the digital content providing server 120 as a virtual currency by the chain network. In addition, transaction costs of digital content and royalties of secondary copyrights may be paid by resale-related points or ordinary payment methods other than virtual currency.

For example, even when the digital content is resold from the first user terminal 131 to the second user terminal 132, the DRM copyright server 110 and the digital content providing server 120 block the second copyright on the digital content. Can be used to control indiscriminate copying and distribution of digital content.

Meanwhile, the DRM copyright server 110 encrypts the corresponding digital content by the DRM packager, and the DRM copyright server 140 requests the reproduction of the digital content from the first or second user terminals 131 and 132. City, the DRM copyright for the digital content is issued to the first or second user terminals (131, 132) and transmitted.

In addition, as a resale restriction condition, after the first user terminal 131 purchases the digital content and the corresponding second copyright purchased from the digital content providing server 120, only after a certain period of time or after a predetermined number of times of reproduction, It may be resaleable to the second user terminal 132.

FIG. 3 illustrates a sequential resale configuration of the digital content resale system using the blockchain technology of FIG. 2.

Referring to FIG. 3, the N-th user terminal 133 sequentially resells the digital content to the N-th user terminal 134, and the digital content providing server 120 performs the first to N th user terminals 131 to. 134 may directly repurchase the digital content and the corresponding copyright, and later re-distribute it to another user terminal.

Here, the transaction costs and the payment of the royalties according to the sequential resale between the user terminals of the digital content and the repurchase of the digital content providing server 120 are described with reference to FIG. 2 and the first user terminal. 131 and the second user terminal 132 are the same as the transaction cost and the payment method of the royalty.

On the other hand, the transaction cost and the usage fee in the sequential resale from the first user terminal 131 to the N-th user terminal 134 may be set as a portion of the cost according to the previous stage of sale.

FIG. 4 illustrates a schematic flowchart of resale by a digital content resale system utilizing the blockchain technology of FIG. 2.

Referring to Figure 4, the resale sequence by the digital content resale system using the above-described blockchain technology will be described in detail as follows.

First, the DRM copyright server 110 classifies the attribute for resale of digital content and provides it to the digital content providing server 120, that is, by assigning the attribute to digital content whether resale between user terminals is possible or impossible. Provided to the digital content providing server 120 with the copyright (S110).

Next, the DRM copyright server 110 and the digital content providing server 120 manages the digital contents of the copyright holder, and processes copyright-related essential information of various digital contents including music, images, photographs or documents by a hashing algorithm. Processing generates a corresponding hash value, categorizes and stores the hash value and the digital content generated by encryption (S120).

Next, the digital content providing server 120 purchases the encrypted digital content and the corresponding primary copyright from the DRM copyright server 110 and streams or downloads the data to the first user terminal 131 that intends to substantially use the digital content. Selectively sold in a manner (S130).

Here, when the first user terminal 131 resells the digital content, the digital content information is shared with the second user terminal 132 and the other user terminal through SNS to promote or promote the digital content (S135). It may also facilitate and activate resale transactions.

Next, at the time of requesting a transaction for the digital content from the first user terminal 131 to the second user terminal 132 and the second copyright, it is determined whether the hash values of the transaction history information for the corresponding digital content coincide with each other (S141). ), The first user terminal 131 may resell the digital content purchased from the digital content providing server 120 and the corresponding second copyright to the second user terminal 132 after a certain period of time or after playing a predetermined number of times. (S142).

That is, through the blockchain network, the transaction history information of the digital content distributed to the DRM copyright server 110, the digital content providing server 120, the first user terminal 131 and the second user terminal 132 is shared. If all of the hash values match and are determined to match, the corresponding digital content is transmitted from the first user terminal 131 to the second user terminal 132 and 2 from the DRM copyright server 110 to the second user terminal 132. The second copyright can be transferred, so that mutual resale transactions between user terminals for digital content can be performed. Alternatively, the digital content may be directly transmitted from the DRM copyright server 110 or the digital content providing server 120 to the second user terminal 132.

Next, the second user terminal 132 provides the transaction cost to the first user terminal 131, the DRM copyright server 110 or the digital content providing server 120 to pay the virtual currency by the blockchain network (S151) The second user terminal 132 may provide a royalty fee for the second copyright to the DRM copyright server 110 or the digital content providing server 120 as a virtual currency by the blockchain network (S152).

On the other hand, the DRM copyright server 110 encrypts the digital content by the Digital Rights Management Packager, and the DRM copyright server 140 requests the reproduction of the digital content from the first or second user terminals 131 and 132. In operation S160, the DRM copyright for the digital content is issued to the first or second user terminals 131 and 132.

Therefore, according to the digital content resale system using the blockchain technology as described above, by the distributed sharing of transaction history information for the digital content, the actual possession of the digital content, and the details of purchase and resale (the period after the initial purchase) Hacking and forgery on transaction costs and copyright royalties due to resale, and security can be guaranteed even when transactions between users of digital content, and the digital content information can be secured through SNS. Share and promote or promote resale transactions for digital content, and even when reselling digital content between users, the DRM copyright server or digital content providing server directly controls secondary copyrights on digital content. To avoid indiscriminate copying and distribution of digital content. You can do that.

The embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, and various equivalents may be substituted for them at the time of the present application. It should be understood that there may be water and variations.

110: DRM copyright server 120: digital content providing server
131 to 134: first to N th user terminals

Claims (9)

A DRM copyright server that encrypts and generates digital content;
A digital content providing server that purchases the encrypted digital content and the corresponding primary copyright from the DRM copyright server and sells the same to the first user terminal.
The first user terminal resells the digital content purchased from the digital content providing server to a second user terminal, the DRM copyright server, the digital content providing server, and the first and second user terminals are blockchain networks. To distribute and share transaction history information for digital content,
When the digital content from the first user terminal to the second user terminal and a second copyright request for a transaction, if the hash values of the transaction history information for the digital content coincide with each other, the corresponding digital content from the second user terminal. A royalty fee for the second copyright of the digital content providing server, the digital content is transmitted from the first user terminal to the second user terminal, and the second copyright is transferred from the DRM copyright server to the second user terminal. A digital content resale system utilizing blockchain technology, which is transmitted to perform mutual resale transactions between user terminals for digital content.
The method of claim 1,
The transaction history information may include copyright details including copyright name of digital content, digital contents detail information including genre information, copyright expiration date, resale time limit or resale expiration date information. And detailed information related to the first and second user terminals purchasing the digital contents.
The method of claim 1,
When reselling the digital content between the user terminals, the second user terminal provides a transaction fee for providing a cryptocurrency by a blockchain network to the digital content providing server, and the digital content providing server sends the payment to the first user terminal. Providing the settled transaction costs,
And the second user terminal provides a royalty fee for the second copyright to the DRM copyright server or the digital content providing server as a virtual currency by a blockchain network.
The method of claim 1,
The DRM copyright server encrypts the digital content by a DRM packager,
And a DRM copyright server for issuing and transmitting a DRM copyright for the digital content to the first or second user terminal when a reproduction request from the first or second user terminal is requested. Digital content resale system using.
The method of claim 1,
The digital rights resale system using block chain technology, characterized in that the DRM copyright server is provided to the digital content providing server by dividing the attribute for resale or not for the digital content.
The method of claim 1,
The first user terminal may be resold to the second user terminal only after a predetermined period of time or after playing a predetermined number of times after purchasing the digital content purchased from the digital content providing server and the corresponding second copyright. , Digital content resale system using blockchain technology.
The method of claim 6,
The N-1th user terminal sequentially resells the digital content to the Nth user terminal,
And the digital content providing server directly repurchases the digital content and the corresponding copyright from the first to N-th user terminals.
The method of claim 1,
When the digital content from the first user terminal to the second user terminal and the second copyright request a transaction, if each hash value of the transaction history information for the digital content coincides with each other, the DRM copyright server or the digital content is provided. The digital content resale system using blockchain technology, characterized in that the corresponding digital content is transmitted from the server to the second user terminal.
The method of claim 1,
The first user terminal, when reselling the digital content, characterized in that to share the digital content information through the SNS to promote or advertise, digital content resale system using block chain technology.

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