KR102168428B1 - Computer program, contents download management server and method for downloading contents - Google Patents

Abstract

A computer program stored in a computer-readable storage medium according to an embodiment of the present disclosure, wherein the computer program includes instructions for causing a content download management server to perform the following operations, the operations: 1 receiving a download request for a file; Determining at least one source to download each of a plurality of chunk data constituting the first file upon receiving the download request; Transmitting first information on the at least one source to the user terminal; Generating compensation information based on the first information or download source information for each chunk data transmitted from the user terminal when the user terminal recognizes that the download has been completed; And transmitting the compensation information to at least one compensation node included in the first blockchain network, whereby a plurality of compensation nodes verify the validity of the compensation information through a consensus algorithm, and the validity of the compensation information is verified. And causing a plurality of compensation nodes to record the compensation information in a transaction in a compensation block.

Description

Content download method, content download management server and computer program {COMPUTER PROGRAM, CONTENTS DOWNLOAD MANAGEMENT SERVER AND METHOD FOR DOWNLOADING CONTENTS}

The present disclosure relates to a content download method, a content download management server, and a computer program.

In recent content download methods, various types of P2P network and content delivery network services are provided. P2P server and cloud storage services refer to services that provide content to users on a network basis.

The existing content sharing system has to have a high-performance security device to prevent forgery and alteration of files by storing all data on a central server, which inevitably cost a lot. In this way, since all files are stored in the central server, information leakage can occur only by hacking the central server, so security is inevitably weak.

In addition, in building a file sharing system operated for each company, as traffic from users is concentrated on a central server and formed as a single unit, there is a problem in that a large amount of operating costs of a server built to increase traffic are consumed.

Therefore, there is a demand in the art for a system for reducing the cost and time required for a server and a computer program in a method of downloading content.

Korean Registered Patent Publication No. 10-1602760 Korean Patent Publication No. 10-0801069

The present disclosure is conceived in response to the above-described background technology, and an object of the present disclosure is to provide a content download management server and a computer program for preventing abnormal P2P network sources from participating in a P2P network.

The technical problems of the present disclosure are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present disclosure for solving the above-described problem, a computer program stored in a computer-readable storage medium is disclosed. The computer program includes instructions for causing a content download management server to perform the following operations, the operations comprising: receiving a download request for a first file from a user terminal; Determining at least one source to download each of a plurality of chunk data constituting the first file upon receiving the download request; Transmitting first information on the at least one source to the user terminal; Generating compensation information based on the first information or download source information for each chunk data transmitted from the user terminal when the user terminal recognizes that the download has been completed; And transmitting the compensation information to at least one compensation node included in the first blockchain network, whereby a plurality of compensation nodes verify the validity of the compensation information through a consensus algorithm, and the validity of the compensation information is verified. And causing a plurality of compensation nodes to record the compensation information in a transaction in a compensation block.

In addition, the operation of determining at least one source to download each of the plurality of chunk data constituting the first file upon receiving the download request includes at least one chunk block recorded in the second blockchain network. Searching for whether there is second information on at least one peer-to-peer (P2P) network source having each of the plurality of chunk data at the terminal; And when the second information is present in the at least one chunk block, determining a P2P network source to download each of the plurality of chunk data based on the second information. It may include.

In addition, the operation of determining a P2P network source to download each of the plurality of chunk data may include when there are a plurality of P2P network sources to download the first chunk data among the plurality of chunk data, when downloading the first chunk data Determining a P2P network source having the shortest time required as a P2P network source to download the first chunk data; It may include.

In addition, when the second information is present in the at least one chunk block, the operation of determining a P2P network source to download each of the plurality of chunk data based on the second information includes the at least one chunk block. When there is second information, a first time required when downloading the first file through a peer-to-peer (P2P) network and when downloading the first file through a content delivery network Recognizing the second time required; And when it is recognized that the first time is shorter than the second time, a P2P network source to download each of the plurality of chunk data is determined based on the second information, and the second time is shorter than the first time. If recognized, determining a content delivery network server as a source to download the plurality of chunk data; It may include.

In addition, the operation of determining at least one source to download each of the plurality of chunk data constituting the first file upon receiving the download request may include, when the second information is not in the at least one chunk block, content Determining a delivery network server as a source to download each of the plurality of chunk data; It may include.

In addition, receiving state change information of a first P2P network source among a plurality of P2P network sources; And transmitting the state change information to at least one content node included in the second blockchain network as the state change information is received, so that a plurality of content nodes verify the validity of the state change information through a consensus algorithm. And causing the plurality of content nodes to record the state change information in a chunk block as a transaction as the validity of the state change information is verified; It may include.

In addition, each of the plurality of content nodes may be a preset node different from the user terminal.

In addition, the chunk data may be stored in a format in which at least a portion of the first file is cached in at least one of at least one P2P network source and a content delivery network source.

In addition, when the user terminal recognizes that the download has been completed, the operation of generating the compensation information based on the first information or download source information for each chunk data transmitted from the user terminal may include the first information or the Recognizing, by the user terminal, at least one P2P network source from which each of the plurality of chunk data is downloaded, based on download source information for each chunk data transmitted from the user terminal; Recognizing a contribution degree of each of the at least one P2P network source; And generating the compensation information based on a contribution degree of each of the at least one P2P network source. Including, the compensation information may include an amount of tokens to be paid to each of the at least one P2P network.

In addition, the amount of the tokens paid to each of the at least one P2P network source may be proportional to the size of the contribution of each of the at least one P2P network source.

In addition, the plurality of compensation nodes may be preset nodes different from the user terminal.

In addition, when the second information is present in the at least one chunk block, the operation of determining a P2P network source to download each of the plurality of chunk data based on the second information includes the at least one chunk block. When there is second information, recognizing a first weight value set in a peer-to-peer (P2P) network and a second weight value set in a content delivery network; When it is recognized that the first weight value is greater than the second weight value, a P2P network source to download each of the plurality of chunk data is determined based on the second information, and the second weight value is the first weight value Determining a content delivery network server as a source to download the plurality of chunk data when it is recognized that it is larger; It may further include.

In addition, the operation of transmitting the compensation information to at least one compensation node included in the first blockchain network may include generating a first transaction signed with a private key of the content download management server; And transmitting the generated first transaction to the at least one compensation node. Including, the first transaction is a first transaction input value including identification information generated from the private key; And a first transaction output value including address information in the first blockchain network in which the first transaction including the compensation information and the compensation information is to be stored.

In addition, the operation of transmitting the state change information to the at least one content node included in the second blockchain network may include: generating a second transaction signed with a private key of the content download management server; And transmitting the generated second transaction to the at least one content node. A second transaction input value including identification information generated from the private key in the second transaction; And a second transaction output value including address information in the blockchain network in which the state change information and the second transaction including the state change information are to be stored. It may further include.

In addition, the communication unit for receiving a download request for the first file from the user terminal; A download source determination unit determining at least one source to download each of the plurality of chunk data constituting the first file upon receiving the download request; A control unit controlling the communication unit to transmit first information on the at least one source to the user terminal; And a reward information generator configured to generate reward information based on the first information when the user terminal recognizes that the download has been completed. Including, the control unit, by controlling the communication unit to transmit the compensation information to a plurality of compensation nodes included in the blockchain network, the plurality of compensation nodes verify the validity of the compensation information through a consensus algorithm, As the validity of the compensation information is verified, it is possible to cause the plurality of compensation nodes to record the compensation information as a transaction in a compensation block.

In addition, it searches whether there is second information on at least one peer-to-peer (P2P) network source having each of the plurality of chunk data in at least one chunk block recorded in the blockchain network, and the When there is the second information in at least one chunk block, a P2P network source to download each of the plurality of chunk data may be determined based on the second information.

In addition, the communication unit for receiving a download request for the first file from the user terminal; A download source determination unit determining at least one source to download each of the plurality of chunk data constituting the first file upon receiving the download request; A control unit controlling the communication unit to transmit first information on the at least one source to the user terminal; And a reward information generator for generating reward information based on the first information or download source information for each chunk data transmitted from the user terminal when the user terminal recognizes that the download has been completed. Including, the control unit, by controlling the communication unit to transmit the compensation information to at least one compensation node included in the first blockchain network, a plurality of compensation nodes verify the validity of the compensation information through a consensus algorithm And, as the validity of the compensation information is verified, the plurality of compensation nodes may cause the plurality of compensation nodes to record the compensation information as a transaction in the compensation block.

Further, the computer program includes instructions for causing the content download management server to perform the following operations, the operations including: receiving a download request for a first file from a user terminal; Determining at least one source to download each of a plurality of chunk data constituting the first file upon receiving the download request; Transmitting first information on the at least one source to the user terminal; Generating compensation information based on the first information or download source information for each chunk data transmitted from the user terminal when the user terminal recognizes that the download has been completed; And by transmitting the compensation information to at least one compensation node included in the blockchain network, a plurality of compensation nodes verify the validity of the compensation information through a consensus algorithm, and as the validity of the compensation information is verified, the plurality of And causing the reward node to write the reward information in a transaction in the reward block.

In addition, the operation of determining at least one source to download each of the plurality of chunk data constituting the first file upon receiving the download request may be performed in at least one chunk block recorded in the blockchain network. Searching for whether there is second information about at least one peer-to-peer (P2P) network source having each of the plurality of chunk data; And when the second information is present in the at least one chunk block, determining a P2P network source to download each of the plurality of chunk data based on the second information. It may include.

Technical solutions obtainable in the present disclosure are not limited to the above-mentioned solutions, and other solutions that are not mentioned are clearly to those of ordinary skill in the technical field to which the present disclosure belongs from the following description. It will be understandable.

The present disclosure may provide a content download management server and a computer program for preventing an abnormal P2P network source from participating in a P2P network.

The effects obtainable in the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. .

Various aspects are now described with reference to the drawings, wherein like reference numbers are used collectively to refer to like elements. In the examples that follow, for illustrative purposes, a number of specific details are presented to provide a holistic understanding of one or more aspects. However, it will be apparent that such aspect(s) may be practiced without these specific details.
1 is a diagram illustrating an example of a content download system according to some embodiments of the present disclosure.
2 is a block diagram of a content download management server according to some embodiments of the present disclosure.
3 is a flowchart illustrating an example of operations performed when a download request for a first file is received from a user terminal according to some embodiments of the present disclosure.
4 is a flowchart illustrating an example of a method of determining a source to download each chunk data constituting a first file according to some embodiments of the present disclosure.
5 is a diagram illustrating an example of a method of determining a P2P network source to download each chunk data when each chunk data constituting a first file is stored in a plurality of P2P network sources according to some embodiments of the present disclosure It is a flow chart.
FIG. 6 is for explaining an example of a method of determining a P2P network source to download each chunk data when each chunk data constituting a first file is stored in a plurality of P2P network sources according to some embodiments of the present disclosure It is a drawing.
7 is a flowchart illustrating a detailed example of a method of determining a source for downloading each chunk data constituting a first file according to some embodiments of the present disclosure.
8 is a flowchart illustrating an example according to a state change of a first P2P network source according to some embodiments of the present disclosure.
9 is a flowchart illustrating an example of a method of generating compensation information based on first information according to some embodiments of the present disclosure.
10 exemplarily shows a connection structure of blocks stored in a first blockchain network and a second blockchain network according to some embodiments of the present disclosure.
11 shows a simplified and general schematic diagram of an exemplary computing environment in which embodiments of the present disclosure may be implemented.

Various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for illustrative purposes, a number of specific details are disclosed to aid in an overall understanding of one or more aspects. However, it will also be appreciated by those of ordinary skill in the art that this aspect(s) may be practiced without these specific details. The following description and the annexed drawings set forth in detail certain illustrative aspects of one or more aspects. However, these aspects are exemplary and some of the various methods in the principles of the various aspects may be used, and the descriptions described are intended to include all such aspects and their equivalents. Specifically, as used herein, "an embodiment", "example", "aspect", "example" and the like are not construed as having any aspect or design being better or advantageous than other aspects or designs. May not.

Hereinafter, the same or similar components are assigned the same reference numerals regardless of the reference numerals, and redundant descriptions thereof will be omitted. In addition, in describing the embodiments disclosed in the present specification, when it is determined that detailed descriptions of related known technologies may obscure the subject matter of the embodiments disclosed in the present specification, detailed descriptions thereof will be omitted. In addition, the accompanying drawings are for easy understanding of the embodiments disclosed in the present specification, and the technical spirit disclosed in the present specification is not limited by the accompanying drawings.

Although the first, second, etc. are used to describe various devices or components, it is a matter of course that these devices or components are not limited by these terms. These terms are only used to distinguish one device or component from another device or component. Therefore, it goes without saying that the first device or component mentioned below may be a second device or component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

In addition, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or”. That is, unless specified otherwise or is not clear from the context, "X employs A or B" is intended to mean one of the natural inclusive substitutions. That is, X uses A; X uses B; Or, when X uses both A and B, “X uses A or B” can be applied to either of these cases. In addition, the term "and/or" as used herein should be understood to refer to and include all possible combinations of one or more of the listed related items.

In addition, the terms "comprising" and/or "comprising" mean that the corresponding feature and/or element is present, but excludes the presence or addition of one or more other features, elements and/or groups thereof. It should be understood as not. In addition, unless otherwise specified or when the context is not clear as indicating a singular form, the singular in the specification and claims should be interpreted as meaning "one or more" in general.

In addition, the terms “information” and “data” as used herein may often be used interchangeably with each other.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it is directly connected to or may be connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

The suffixes "module" and "unit" for constituent elements used in the following description are given or used interchangeably in consideration of only the ease of preparation of the specification, and do not have a distinct meaning or role by themselves.

Objects and effects of the present disclosure, and technical configurations for achieving them will become apparent with reference to embodiments described in detail later with reference to the accompanying drawings. In describing the present disclosure, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present disclosure, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present disclosure and may vary according to the intention or custom of users or operators.

However, the present disclosure is not limited to the embodiments disclosed below, and may be implemented in various different forms. The present embodiments are provided only to make the present disclosure complete, and to completely inform the scope of the disclosure to those of ordinary skill in the art to which the present disclosure belongs, and the present disclosure is only defined by the scope of the claims. . Therefore, the definition should be made based on the contents throughout this specification.

1 is a diagram illustrating an example of a content download system according to some embodiments of the present disclosure.

Referring to FIG. 1, the content download system includes a user terminal 100, a P2P network 200, a first block chain network 300, a second block chain network 400, a content delivery network server 500, and a storage device. 510, a network 600, and a content download management server 700 may be included. However, since the above-described components are not essential for implementing the content download system, the content download system may have more or fewer components than the components listed above.

According to some embodiments of the present disclosure, a user terminal 100, a P2P network 200, a first blockchain network 300, a second blockchain network 400, a content delivery network server 500, a storage device ( The 510 and the content download management server 700 may mutually transmit and receive data for content download according to some embodiments of the present disclosure through the network 600.

The user terminal 100 may include a personal computer (PC), a notebook (note book), a mobile terminal, a smart phone, a tablet PC, etc. owned by the user. , It may include all types of terminals that can access wired/wireless networks.

The user terminal 100 may download content through the network 600. Content in the present disclosure may include any type of content such as mobile games, web games, VR games, P2P games, online/offline games, movies, dramas, music videos, music and streaming data.

A peer-to-peer (P2P) network 200 is a network composed of a plurality of user terminals, and by directly connecting user terminals 100, which are P2P network sources, all P2P network sources can be providers of chunk data while simultaneously It may refer to a network in which a P2P network source becomes an audience downloading chunk data.

The first blockchain network 300 may refer to a network that records compensation information for a P2P network source in a blockchain.

In addition, each of the reward nodes included in the first blockchain network 300 may record reward information as a transaction in the reward block through a consensus algorithm. Here, the compensation block is a unit in which compensation information is stored in the first block chain network 300, and may form a block chain as it is connected with adjacent blocks.

In addition, when the compensation information is recorded in the first blockchain network 300, it is virtually impossible for the compensation information to be forged or altered. Accordingly, it is possible to prevent a malicious user from modifying compensation information through hacking after uploading data including a virus to the P2P network 200.

The second block chain network 400 may refer to a network that records information on each source of a plurality of chunk data constituting a file (or content) through a block chain.

At this time, each of the content nodes included in the second block chain network 400 may record information about at least one source having each of the plurality of chunk data in the chunk block as a transaction through a consensus algorithm. Here, the chunk block is a unit in which information on at least one source having chunk data is stored in the second blockchain network 400, and may form a block chain by being connected to adjacent blocks.

In addition, when information on at least one source having each of a plurality of chunk data is recorded in the second blockchain network 400, information on at least one source having each of a plurality of chunk data is forged or altered. It is virtually impossible. Accordingly, it is possible to prevent a malicious user from uploading chunk data including a virus to the P2P network 200 and then modifying information on at least one source having a plurality of chunk data through hacking.

According to some embodiments of the present disclosure, the first block chain network 300 and the second block chain network 400 are separately expressed as separate networks, but a block chain network integrated into one according to an embodiment of the present disclosure. It may be operated as (300, 400).

According to some embodiments of the present disclosure, the first blockchain network 300 may be operated in a form existing inside the second blockchain network 400. In addition, the second blockchain network 400 may be operated in a form that exists inside the first blockchain network 300. In the following, the first block chain network 300 and the second block chain network 400 are described separately, but even when the first block chain network 300 and the second block chain network 400 are integrated, in the present disclosure The described embodiments can be applied.

Meanwhile, in some embodiments of the present disclosure, a plurality of nodes included in the blockchain networks 300 and 400 may be a full block chain node or a light weight node. .

A full block chain node can contain all block information from the first block of the block chain to a block that is currently newly created. In addition, the full blockchain node collects and stores all blockchain information, and can verify the received block to add a new block.

The Lightweight Node does not have the originals of all block information, and may include only header information. In order for the Lightweight Node to verify the transaction, it can perform Simple Payment Verify (SPV).

For example, a lightweight node can request block information from a full blockchain node, and the authentication content of a transaction can be verified through Merkle Root.

However, for convenience of explanation, it is assumed that the plurality of content nodes included in the blockchain networks 300 and 400 are full blockchain nodes, and will be described below.

The consensus algorithm performed in the blockchain networks 300 and 400 according to some embodiments of the present disclosure is a PoW (Proof of Work) algorithm, PoS (Proof of Stake) algorithm, DPoS (Delegated Proof of Stake) algorithm, PBFT (Practical Byzantine Fault Tolerance) algorithm, Delegated Byzantine Fault Tolerance (DBFT) algorithm, Redundant Byzantine Fault Tolerance (RBFT) algorithm, Sieve algorithm, Tendermint algorithm, Paxos algorithm, Raft algorithm, PoA (Proof of Authority) algorithm and/or PoET (Proof of Elapsed Time) algorithm may be included. However, the present invention is not limited thereto, and an algorithm different from the above algorithm may be used as the consensus algorithm.

In addition, since P2P network source information, latency information, reward information, and token generation information are recorded in blocks using the consensus algorithm of blockchain technology, the effect of preventing forgery or falsification of content upload and download information occurs. Is done.

Meanwhile, a block chain network structure according to some embodiments of the present disclosure may be a public type or a private type. In the case of a public blockchain network structure, transactions (here, information on the address of at least one source having each of a plurality of chunks of data, information on the download speed when downloading from each of at least one source, and at least one source each It is inefficient in terms of consensus time, transaction processing speed, and efficiency of use of computing resources, since verification must be performed on all nodes in order to verify the latency information and compensation information for at least one source). However, since the participation of any node is possible, there may be an advantage in the transparency and integrity of the stored data. In addition, in the case of a private (or consortium) block chain, since the operating entity is clear, there is an advantage of being efficient in terms of consensus time, transaction processing speed, and efficiency of use of computing resources, but transparency about the transaction processing process and results. There may be advantages in terms of

The consensus algorithm in some embodiments of the present disclosure may be a private or consortium-type blockchain network, but is not limited thereto, in order to improve the user experience through efficient use of computing resources and increase in transaction processing speed. Depending on the implementation mode, public type may be used as the consensus algorithm in order to further emphasize the transparency of the transaction.

According to some embodiments, the first blockchain network 300 may include a plurality of reward nodes. And, each of the plurality of compensation nodes may be a preset node different from the user terminal 100. Here, the preset node refers to a reliable node generally means in the above-described private block chain technology, and only a preset number of nodes may become a plurality of compensation nodes. However, it is not limited thereto.

According to some embodiments, the second blockchain network 400 may include a plurality of content nodes. In addition, each of the plurality of content nodes may be a preset node different from the user terminal 100. Here, the preset node refers to a trusted node that is generally meant in private blockchain technology, and only a preset number of nodes can be a plurality of content nodes. However, it is not limited thereto.

According to some embodiments, nodes in the blockchain networks 300 and 400 may be operated by a blockchain core package according to a hierarchical structure. The above structure defines the structure of data handled by the blockchain networks 300 and 400, a data layer that manages the data, performs mining to verify the validity of blocks and generates blocks, and is paid to miners during the mining process. A consensus layer in charge of processing fees, a P2P network protocol, a hash function, a common layer implementing and managing digital signatures, encoding and common storage, and an application layer in which various applications are created, processed, and managed may be included.

The content delivery network server 500 may refer to a server that stores and provides data in a storage device 510 to be described later in order to deliver content. Specifically, the content delivery network server 500 may be configured as a distributed server to transmit content including web, application, and streaming media.

The storage device 510 is a device that stores data under the control of a content delivery network server 500 such as a computer, a smart phone, and a smart pad. The storage device 510 is a device that stores data on a magnetic disk, such as a hard disk drive (HDD, Hard Disk Drive), a solid state drive (SSD, Solid State Drive), and a semiconductor memory, especially a nonvolatile memory. It may include a device for storing data.

The network 600 according to embodiments of the present disclosure includes a public switched telephone network (PSTN), x Digital Subscriber Line (xDSL), Rate Adaptive DSL (RADSL), Multi Rate DSL (MDSL), and Very Various wired communication systems such as High Speed DSL), Universal Asymmetric DSL (UADSL), High Bit Rate DSL (HDSL), and local area network (LAN) can be used.

In addition, the network 600 presented here is CDMA (Code Division Multi Access), TDMA (Time Division Multi Access), FDMA (Frequency Division Multi Access), OFDMA (Orthogonal Frequency Division Multi Access), SC-FDMA (Single Carrier- FDMA) and other systems can be used.

The network 600 according to the embodiments of the present disclosure may be configured regardless of its communication mode, such as wired and wireless, and various types of short-range communication networks (PAN: Personal Area Network), local area networks (WAN: Wide Area Network), etc. It can be configured as a communication network. In addition, the network may be a known World Wide Web (WWW), and may use a wireless transmission technology used for short-range communication such as infrared (IrDA: Infrared Data Association) or Bluetooth (Bluetooth).

The techniques described herein may be used not only in the networks mentioned above, but also in other networks.

The content download management server 700 may perform a function of determining a location to download content when a content download request is received from the user terminal 100.

For example, when the content download management server 700 receives a content download request signal from the user terminal 100, whether to download the content through the content delivery network server 500 or via the P2P network 200 It is possible to determine whether or not to download the game file. In addition, the content download management server 700 may transmit information on a source for downloading the game file to the user terminal 100 that has transmitted the download request signal of the game file.

The content download management server 700 may include any type of computer system or computer device, such as, for example, a microprocessor, mainframe computer, digital processor, portable device and device controller, and the like.

The content download management server 700 may transmit a query or a transaction to at least one of the first blockchain network 300 and the second blockchain network 400. The query in the present disclosure may be used to query a reward block stored in the first blockchain network 300 and a chunk block stored in the second blockchain network 400. In addition, the transaction in the present disclosure may be used to perform an update (modification/change/delete/add) on data recorded in the first blockchain network 300 and the second blockchain network 400.

The content download management server 700 will be described in more detail below with reference to FIG. 2.

2 is a block diagram of a content download management server according to some embodiments of the present disclosure.

2, the content download management server 700 may include a communication unit 710, a download source determination unit 720, a reward information generation unit 730, a token payment unit 740, and a control unit 750. have. However, the above-described components are not essential in implementing the content download management server 700, and the content download management server 700 may have more or fewer components than the components listed above. Here, each component may be composed of a separate chip, module or device, or may be included in a single device.

The communication unit 710 is between the content download management server 700 and the communication system, between the content download management server 700 and the user terminal 100, between the content download management server 700 and the first blockchain network 300, It may include one or more modules that enable communication between the content download management server 700 and the second blockchain network 400 or between the content download management server 700 and the content delivery network server 500.

The communication unit 710 may include at least one of a mobile communication module, a wired Internet module, and a wireless Internet module.

When a download request for a content or a file is received from the user terminal 100, the download source determination unit 720 is at least one source to download each of the plurality of chunk data constituting the content or file for which the download request is received. Can be determined. Further, the first information on at least one source determined through the download source determination unit 720 may be transmitted to the user terminal 100 through the communication unit 710. The user terminal 100 may determine from which source to download each of the plurality of chunk data using the first information. Here, a detailed description of the first information will be described later in detail with reference to FIG. 3.

Specifically, the user terminal 100 may transmit a download request for a first file composed of an extension such as apk, exe, dmg, pkg, app, and jpg to the content download management server 700. In addition, the download source determination unit 720 of the content download management server 700 determines at least one source to download each of the plurality of chunk data constituting the first file requested by the user terminal 100 to download. A transaction recorded in a plurality of chunk blocks may be received from any one of a plurality of content nodes included in the second blockchain network 400 shown in FIG. In addition, the download source determination unit 720 may analyze a transaction and search for a source to download each of the plurality of chunk data. Here, the "chunk block" is a unit in which information on a source for downloading each of a plurality of chunk data is stored in the second blockchain network 400, and may form a block chain by being connected to adjacent blocks. And information about a source (P2P network source) storing each of a plurality of chunk data in a memory or the like within the P2P network 200 (for example, when the first chunk data is stored in a memory of a specific terminal, the specific When information about an address for accessing the memory of the terminal) is issued as a transaction to the second blockchain network 400, the corresponding transaction may be included in a chunk block and recorded in the second blockchain network 400. In addition, according to the setting of the second blockchain network 400, the right to read, the right to consensus, and/or the right to verify the data stored in the chunk block may be determined.

Meanwhile, the chunk data means data in a chunk unit constituting the first file. Specifically, when the first file is a 100MB file, the chunk data may mean data in which the first file is divided into 10MB units. However, the method of dividing the first file into chunk data is not limited thereto, and various methods may be used.

Meanwhile, according to some embodiments, the chunk data may be data stored in a form in which at least a portion of the first file is cached in at least one of a P2P network source and a content delivery network source. That is, web caching data according to the prior art may be chunk data. However, the present invention is not limited thereto, and the chunk data may mean data in which the first file is divided in various ways.

The source may mean a location to download each of the plurality of chunk data constituting the first file, that is, a terminal, a server, etc. storing each of the plurality of chunk data in a memory or the like.

For example, when the first chunk data among the plurality of chunk data is stored in the memory of each of the first terminal and the second terminal, the first terminal and the second terminal may be sources to download the first chunk data. . A detailed description of this will be described later with reference to FIGS. 5 and 6.

Meanwhile, the download source determining unit 720 determines whether there is second information on at least one P2P network source having each of a plurality of chunk data in at least one chunk block recorded in the second blockchain network 400. You can explore.

According to some embodiments, when the second information is present in at least one chunk block recorded in the second blockchain network 400, the download source determination unit 720 is configured to each of a plurality of chunk data based on the second information. You can determine the P2P network source to download. Here, the second information may refer to information on a P2P network source having each of a plurality of chunk data in a plurality of P2P network sources included in a peer-to-peer (P2P) network. A detailed description of this will be described later in more detail with reference to FIG. 4.

According to some other embodiments, the download source determination unit 720 delivers the content network when a preset condition is satisfied even when the second information is present in at least one chunk block recorded in the second blockchain network 400. The server 500 may be selected as a source for downloading each of the plurality of chunk data.

For example, the download source determining unit 720 may provide a first time and content delivery network server for downloading a first file through the P2P network 200 even when the second information is present in at least one chunk block. The second time required when downloading the first file through the Contents Delivery Network (500) may be recognized. And, when it is recognized that the first time is shorter than the second time, the download source determination unit 720 determines a P2P network source to download each of the plurality of chunk data based on the second information, and determines a second time than the first time. When it is recognized that the time is short, the content delivery network server 500 may be determined as a download source. A detailed description of this will be described later with reference to FIG. 7.

When the user terminal 100 recognizes that the download has been completed, the compensation information generator 730 may generate compensation information based on the first information. Here, the "compensation information" is information generated based on the first information and may include information on the contribution of each source that has provided download to the user terminal 100. However, the present disclosure is not limited thereto, and the compensation information generation unit 730 may generate various actions that are helpful in providing downloads to the user terminal 100 as compensation information according to embodiments of the present disclosure.

For example, the compensation information generation unit 730 may generate compensation information by recognizing at least one P2P network source from which the user terminal 100 has downloaded each of the plurality of chunk data, and recognizing the contribution of each of the P2P network sources. I can. A detailed description of this will be described later in detail with reference to FIG. 9.

Meanwhile, when the reward information is generated, the communication unit 710 transmits the reward information to a plurality of reward nodes included in the first blockchain network 300, so that the reward information is included in the first blockchain network 300. A plurality of compensation nodes may verify the validity of compensation information through a consensus algorithm, and as the validity of the compensation information is verified, a plurality of compensation nodes may cause the plurality of compensation nodes to record the compensation information as a transaction in the compensation block. Here, the “reward block” is a unit in which compensation information is stored in the first block chain network 300, and may form a block chain by being connected to adjacent blocks. And when information about a source that provided each of the plurality of chunk data in the P2P network 200 is issued as a transaction to the first blockchain network 300, the corresponding transaction is included in the reward block and the first blockchain network 300 ) Can be recorded. In addition, according to the setting of the first blockchain network 300, the right to read, the right to consensus, and/or the right to verify the data stored in the reward block may be determined.

Meanwhile, the token payment unit 740 may allocate a token to a P2P network source to which the token is to be paid by using the reward information. In addition, the token payment unit 740 may control the communication unit 710 to transmit a token to each P2P network source to which the token is to be paid.

Here, "token" may mean goods that are traded online. For example, the token may be a token that can be used as a digital product of downloaded content. In addition, it may be a token usable as a digital goods used for paid payment for downloading content. However, the present disclosure is not limited thereto, and various digital goods may be used as tokens according to embodiments of the present disclosure.

The controller 750 may generally control the overall operation of the content download management server 700. The control unit 750 provides or processes appropriate information or functions to the user by processing signals, data, information, etc. that are input or output through the above-described components or by driving an application program stored in a memory (not shown in FIG. 2). can do.

3 is a flowchart illustrating an example of operations performed when a download request for a first file is received from a user terminal according to some embodiments of the present disclosure.

Referring to FIG. 3, the control unit 750 of the content download management server 700 may control the communication unit 710 to receive a download request for a first file from the user terminal 100 (S110).

Here, the first file may mean a file composed of an extension such as apk, exe, dmg, pkg, app, and jpg. However, the first file is not limited thereto.

In addition, the download request for the first file may be a download request for a game file or a download request for a specific content (eg, a movie file, etc.). However, the download request for the first file is not limited thereto.

As the download source determination unit 720 of the content download management server 700 receives the download request for the first file, each of a plurality of chunk data constituting the first file included in the second blockchain network 400 is At least one source to be downloaded may be determined (S120).

Specifically, when receiving a download request for the first file, the control unit 750 is recorded in at least one chunk block from any one of a plurality of content nodes included in the second blockchain network 400. The communication unit 710 may be controlled to receive a transaction. Here, the transaction recorded in at least one chunk block includes information on the address of at least one source having each of the plurality of chunk data, information on the download speed when downloading from each of the at least one source, and each of the at least one source. It may contain information about the latency of

The download source determiner 720 may analyze the received transaction to determine at least one source to download each of the plurality of chunk data constituting the first file. Here, at least one source for downloading each of the plurality of chunk data may be a P2P network source included in the P2P network 200 or a content delivery network server 500. A detailed description of this will be described later with reference to FIGS. 4 to 7.

Meanwhile, when determining at least one source for downloading each of the plurality of chunk data in step S120, the communication unit 710 transmits first information on at least one source to download each of the plurality of chunk data to the user terminal ( 100) can be transmitted (S130).

Here, the first information may be information on an optimal source for downloading each of the plurality of chunk data. Specifically, the first information may be information on a source for downloading each of the plurality of chunk data constituting the first file requested by the user terminal 100.

When the user terminal 100 receives the first information, each of the plurality of chunk data may be downloaded from at least one source to download each of the plurality of chunk data based on the first information. Here, at least one source for downloading each of the plurality of chunk data may be a P2P network source included in the P2P network 200 or a content delivery network server 500. A detailed description of this will be described later with reference to FIGS. 4 to 7.

In addition, the controller 750 may recognize that the download has been completed in the user terminal 100 (S140).

Specifically, the communication unit 710 may receive from the user terminal 100 that downloading of the plurality of chunk data constituting the first file requested by the user terminal 100 has been completed.

In addition, as the user terminal 100 recognizes that the download has been completed, the compensation information generation unit 730 may generate compensation information based on the first information (S150).

Specifically, the compensation information generation unit 730 recognizes at least one P2P network source from which the user terminal 100 has downloaded each of the plurality of chunk data based on the first information, and the contribution of each of the at least one P2P network source By recognizing the reward information can be generated.

For example, when receiving that the download of the first file requested by the user terminal 100 has been completed through the communication unit 710, the compensation information generation unit 730 The contribution to each of the P2P network sources that provided the chunk data may be recognized, and compensation information may be generated in proportion to the recognized contribution.

According to some embodiments of the present disclosure, after completing the download of the requested first file, the user terminal 100 may transmit download source information for each chunk data to the content download management server 700. The content download management server 700 may determine a contribution degree of download sources to the first file based on the received download source information in chunk data units, and generate compensation information for this. In addition, the content download management server 700 may include the generated compensation information in a transaction and issue it to the blockchain networks 300 and 400. At this time, the input field of the transaction may include the private key information of the content download management server 700, and the output value of the transaction includes address information and reward token information on the blockchain networks 300 and 400 of the source to be compensated. Can be included. A detailed description of this will be described later with reference to FIG. 9.

In addition, the controller 750 may control the communication unit 710 to transmit the generated compensation information to at least one compensation node included in the first blockchain network 300 (S160).

Specifically, the controller 750 transmits the compensation information to at least one compensation node included in the first blockchain network 300 when compensation information is generated through the compensation information generation unit 730. Can be controlled.

More specifically, the control unit 750 may control the communication unit 710 to generate a first transaction signed with the private key of the content download management server 700 and transmit the generated first transaction to at least one compensation node. have. Here, identification information generated from the private key of at least one P2P network source may be recorded in the input value of the first transaction. In addition, address information in the blockchain networks 300 and 400 in which a first transaction including compensation information and compensation information of at least one P2P network source is to be stored may be recorded in the output value of the first transaction.

On the other hand, the generated reward information is validated by a consensus algorithm in a plurality of reward nodes included in the first blockchain network 300, and as the validity is verified, a plurality of reward nodes provide reward information to the reward block. Can be caused to be recorded as a transaction.

Meanwhile, the token payment unit 740 may allocate a token to a P2P network source to which the token is to be paid based on the reward information, and a detailed description thereof will be described later with reference to FIG. 9.

4 is a flowchart illustrating an example of a method of determining a source to download each chunk data constituting a first file according to some embodiments of the present disclosure.

First, according to some embodiments of the present disclosure, when a download request for a first file is received from a user terminal through the communication unit 710, the download source determination unit 720 downloads each of the chunk data constituting the first file. You can decide which source to do.

Specifically, referring to FIG. 4, the download source determination unit 720 may search whether there is second information on a P2P network source in a chunk block recorded in the second blockchain network 400 (S210). . Here, the second information may refer to information on a P2P network source having each of a plurality of chunk data in a plurality of P2P network sources included in the P2P network 200.

The step S210 will be described in more detail as follows.

When receiving a download request for the first file, the control unit 750 receives a transaction recorded in at least one chunk block from any one of a plurality of content nodes included in the second blockchain network 400 The communication unit 710 can be controlled so as to be performed. Here, the transaction recorded in at least one chunk block is information on the address of at least one P2P network source having each of the plurality of chunk data (second information), and the download speed when downloading from each of the at least one P2P network source. It may include information on, and information on latency of each of at least one P2P network source.

In addition, the download source determination unit 720 may search whether there is second information in the transaction received through the communication unit 710. That is, the download source determiner 720 may search for a P2P network source having chunk data among a plurality of P2P network sources constituting the P2P network 200.

Meanwhile, when the download source determiner 720 recognizes that the second information exists (S220, Yes), a P2P network source to download each of the plurality of chunk data may be determined based on the second information (S230).

Specifically, if the second information on the P2P network source having the chunk data constituting the first file exists in the chunk block recorded in the second blockchain network 400, the download source determination unit 720 At least a P2P network source to download each of the plurality of chunk data may be determined based on the information.

If a plurality of chunk data is composed of first chunk data and second chunk data, and one P2P network source (hereinafter referred to as the first P2P network source) has each of the first chunk data and the second chunk data , The download source determiner 720 may determine the first P2P network source as a P2P network source to download the first chunk data and the second chunk data based on the second information.

On the other hand, when a plurality of P2P network sources have the first chunk data (and/or the second chunk data), the first chunk data and the second chunk data are downloaded to the P2P network source to be downloaded in a method different from the above-described method. You can decide. A detailed description of this will be described later in detail with reference to FIG. 5.

Meanwhile, when the second information does not exist (S220, No), the download source determination unit 720 may determine the content delivery network server 500 as a source to download each of the plurality of chunk data (S240).

Specifically, if there is no second information on the P2P network source having the chunk data constituting the first file in the chunk block recorded in the second blockchain network 400, the download source determination unit 720 The content delivery network server 500 may be determined as a source for downloading each of the plurality of chunk data. That is, if the download source determination unit 720 recognizes that there is no P2P network source having a plurality of chunk data in the P2P network 200, the content delivery network server 500 is used as a source to download each of the plurality of chunk data. You can decide.

Meanwhile, according to some embodiments, when a P2P network source constituting a P2P network has only some of the plurality of chunk data, the P2P network source is determined as a source to download the corresponding chunk data, and the content delivery network server 500 May be determined as a source to download chunk data other than the corresponding chunk data.

On the other hand, the communication unit 710, when determining at least one source to download each of the plurality of chunk data in each step (S230, S240), the user terminal information on at least one source to download each of the plurality of chunk data Can be sent to (100).

5 is a diagram illustrating an example of a method of determining a P2P network source to download each chunk data when each chunk data constituting a first file is stored in a plurality of P2P network sources according to some embodiments of the present disclosure It is a flow chart. Contents overlapping with those described above with respect to FIGS. 1 to 4 with respect to FIG. 5 will not be described again, but will be described with focus on differences.

Referring to FIG. 5, the download source determining unit 720 may check whether there are a plurality of P2P network sources to download the first chunk data from among a plurality of chunk data to the P2P network 200 (S310). Here, the first chunk data may mean any one of a plurality of chunk data.

Specifically, when receiving a download request for the first file, the control unit 750 is recorded in at least one chunk block from any one of a plurality of content nodes included in the second blockchain network 400. The communication unit 710 may be controlled to receive a transaction. Here, the transaction recorded in at least one chunk block is information on the address of at least one P2P network source having each of the plurality of chunk data (second information), and the download speed when downloading from each of the at least one P2P network source. It may include information on, and information on latency of each of at least one P2P network source.

In addition, the download source determiner 720 may check whether there are a plurality of P2P network sources to download the first chunk data among the plurality of chunk data by using the second information.

For example, when the download source determining unit 720 recognizes that the first chunk data among the plurality of chunk data is stored in the memory of each of the first terminal and the second terminal using the second information, the first terminal and the The second terminal may recognize that the first chunk data is a download source. Here, since there are two sources to download the first chunk data, the download source determiner 720 may recognize that there are a plurality of sources to download the first chunk data.

For another example, when the download source determination unit 720 recognizes that the first chunk data among the plurality of chunk data is stored only in the memory of the first terminal using the second information, the first terminal Can be recognized as the source to download. In this case, the download source determination unit 720 may recognize that there are not a plurality of sources to download the first chunk data.

If the download source determiner 720 recognizes that there are a plurality of P2P network sources (S310, Yes), the P2P network source with the shortest time required when downloading the first chunk data is a P2P network to download the first chunk data. It can be determined as a source (S320)

Specifically, when the download source determiner 720 recognizes that the first chunk data is stored in the memory of each of the first terminal and the second terminal, the first time required to download the first chunk data from the first terminal A terminal with a shorter time required to download the first chunk data may be determined as a P2P network source to download the first chunk data by comparing the second time required to download the first chunk data from the second terminal. .

On the other hand, if the download source determination unit 720 recognizes that the first chunk data constituting the first file is not plural (S310, No) in step S310, the only P2P network source is used to download the first chunk data. Can be determined by the source.

Specifically, when it is recognized that the first chunk data exists only in the first terminal, the download source determiner 720 may determine the first terminal as a P2P network source to download the first chunk data. However, it is not limited to the first chunk data.

FIG. 6 is for explaining an example of a method of determining a P2P network source to download each chunk data when each chunk data constituting a first file is stored in a plurality of P2P network sources according to some embodiments of the present disclosure It is a drawing.

According to some embodiments of the present disclosure, the download source determination unit 720 of the content download management server 700 receives the first file download request from the user terminal 100 through the communication unit 710. It is possible to determine a P2P network source to download each of the chunk data constituting the file.

Referring to FIG. 6, the original data 810 for the first file has a size of 90 MB, and the chunk data may be composed of nine chunk data in which the original data is divided into 10 MB. For example, the original data 810 for the first file may have first to ninth chunk data. However, the present invention is not limited thereto, and the original data 810 may be composed of a plurality of chunk data through various division methods.

Each chunk data constituting the original data 810 may be stored in a memory of terminal A, terminal B, terminal C, terminal D, and terminal E, excluding the user terminal 100.

For example, if the second chunk data and the seventh chunk data are stored in the memory of the terminal A, the terminal A performs a P2P of the second chunk data and the seventh chunk data among a plurality of chunk data constituting the original data 810. Can be determined by the network source.

For another example, the memory of terminal B stores second chunk data, third chunk data, and fifth chunk data, and the second chunk data and the third chunk data among a plurality of chunk data constituting the original data 810 are stored. It may be determined as a source of the chunk data and the fifth chunk data.

The download source determiner 720 may generate a first table 820 when searching for whether there is second information on a P2P network source in a chunk block recorded in the second blockchain network 400. In addition, the download source determiner 720 may determine a P2P network source to download each of the plurality of chunk data by using the first table 820. When the P2P network source to be downloaded is determined after generating the first table 820 as described above, the speed of determining the P2P network source to download each of the plurality of chunk data may be improved.

Meanwhile, the download source determiner 720 may determine a P2P network source to download each of the plurality of chunk data using the first table 820 in the following manner.

The download source determiner 720 may check the first table 820 to determine a P2P network source having the first chunk data in the memory. Specifically, the download source determining unit 720 may check the first table 820 and recognize that the terminal C and the terminal E have the first chunk data as a P2P network source having in the memory. In this case, the download source determiner 720 may recognize that the plurality of P2P network sources have the first chunk data and may determine a P2P network source to download the first chunk data in the manner described above with reference to FIG. 5. That is, the download source determining unit 720 may compare a time taken when downloading the first chunk data from the C terminal and a time taken when downloading the first chunk data from the E terminal, and determine a terminal having a shorter corresponding time as the P2P network source. If the time taken for downloading from the terminal C is shorter, the download source determination unit 720 may determine the terminal C as a P2P network source to download the first chunk data.

Referring to the first table 820 of FIG. 6, since the number of terminals having second chunk data, third chunk data, fifth chunk data, seventh chunk data, and ninth chunk data is plural, the download source The determiner 720 may determine each of the second chunk data, the third chunk data, the fifth chunk data, the seventh chunk data, and the ninth chunk data as a P2P network source to download in the same manner as described above.

On the other hand, the download source determiner 720 checks the first table 820 to determine the chunk data (fourth chunk data, sixth chunk data, and eighth chunk data) stored only in the memory of one terminal among the plurality of chunk data. ) Can be recognized. In this case, the download source determining unit 720 may determine the corresponding terminal as a P2P network source to download the corresponding chunk data.

For example, if the download source determiner 720 recognizes that the fourth chunk data is stored only in the memory of the terminal D, it may recognize the P2P network source to download the fourth chunk data as the terminal D.

Meanwhile, when the P2P network source to download each of the plurality of chunk data is determined by the method as described above, the download source determination unit 720 determines the second table (from which P2P network source to download each of the plurality of chunk data) ( 830) may be generated as the first information. In addition, the controller 750 may control the communication unit 710 to transmit the first information including the second table 830 to the user terminal 100.

As the user terminal 100 receives the first information including the second table 830, the user terminal 100 may download each of the plurality of chunk data using the second table 830 included in the first information.

Specifically, the user terminal 100 uses the second table 830 included in the first information to convert the first chunk data into the C terminal, the second chunk data into the A terminal, the third chunk data into the C terminal, and the fourth. The chunk data can be downloaded from the terminal D, the fifth chunk data from the terminal B, the sixth chunk data from the D terminal, the seventh chunk data from the C terminal, the eighth chunk data from the E terminal, and the ninth chunk data from the D terminal. . As described above, when the user terminal 100 downloads each of a plurality of chunk data using the second table 830, a time required for downloading may be shortened.

7 is a flowchart illustrating a detailed example of a method of determining a source for downloading each chunk data constituting a first file according to some embodiments of the present disclosure. Contents overlapping with those described above with respect to FIGS. 1 to 4 with respect to FIG. 7 will not be described again, but will be described with focus on differences.

First, according to some embodiments of the present disclosure, when a download request for a first file is received from a user terminal through the communication unit 710, the download source determination unit 720 downloads each of the chunk data constituting the first file. You can decide which source to do.

Specifically, referring to FIG. 7, the download source determination unit 720 may search whether there is second information on a P2P network source in a chunk block recorded in the second blockchain network 400 (S410). . Here, the second information may refer to information on a P2P network source having each of a plurality of chunk data in a plurality of P2P network sources included in the P2P network 200.

The step (S410) will be described in more detail as follows.

When receiving a download request for the first file, the control unit 750 receives a transaction recorded in at least one chunk block from any one of a plurality of content nodes included in the second blockchain network 400 The communication unit 710 can be controlled so as to be performed. Here, the transaction recorded in at least one chunk block is information on the address of at least one P2P network source having each of the plurality of chunk data (second information), and the download speed when downloading from each of the at least one P2P network source. It may include information on, and information on latency of each of at least one P2P network source.

In addition, the download source determination unit 720 may search whether there is second information in the transaction received through the communication unit 710. That is, the download source determiner 720 may search for a P2P network source having chunk data among a plurality of P2P network sources constituting the P2P network 200.

Meanwhile, when the second information does not exist (S420, No), the download source determination unit 720 may determine the content delivery network server 500 as a source to download the plurality of chunk data (S440). That is, if the download source determination unit 720 recognizes that there is no P2P network source having a plurality of chunk data in the P2P network 200, the content delivery network server 500 is used as a source to download each of the plurality of chunk data. You can decide.

Specifically, if the second information on the P2P network source having the chunk data constituting the first file does not exist in the chunk block recorded in the second blockchain network 400, the download source determination unit 720 delivers content. The network server 500 may be determined as a source to download each of the plurality of chunk data.

On the other hand, the download source determiner 720 recognizes that the second information exists (S420, Yes), the first time required when downloading the first file through the P2P network 200 and the content delivery network server The second time required for downloading through 500 may be recognized (S430).

Specifically, when the user terminal 100 downloads a plurality of chunk data constituting the first file, the download source determination unit 720 includes a first time required through the P2P network 200 and the content delivery network server 500. ), it is possible to recognize the second time required when downloading a plurality of chunk data.

In addition, the download source determination unit 720 may compare a first time required when downloading the first file through a P2P network source and a second time required when downloading through the content delivery network server 500 ( S450).

In this case, when it is determined that the first time is longer than the second time (S450, No), the download source determiner 720 may determine the content delivery network server 500 as a source to download the plurality of chunk data ( S440).

Specifically, when the download source determination unit 720 determines that the first time that the user terminal 100 downloads through the P2P network 200 takes longer than the second time that the user terminal 100 downloads through the content delivery network server 500 , The content delivery network server 500 may be determined as a source for downloading the plurality of chunk data.

Meanwhile, the download source determination unit 720 determines that the first time is shorter than the second time, that is, the time when the user terminal 100 downloads through the P2P network 200 is transmitted through the content delivery network server 500. If it is determined that it is shorter than the download speed (S450, Yes), it may be determined to download a plurality of chunk data through the P2P network 200.

Specifically, the download source determination unit 720 determines that the download time through the P2P network 200 by the user terminal 100 takes less than the download speed through the content delivery network server 500, the P2P network source A P2P network source to download each of the plurality of chunk data may be determined based on the second information of.

Meanwhile, according to some embodiments, if the download source determiner 720 recognizes that the second information is in at least one chunk block in step S420, the P2P network 200 is separated from the step S430. ) And whether to download each of the plurality of chunk data through the P2P network 200 by recognizing the weight value set in the content delivery network server 500 or download each of the plurality of chunk data through the content delivery network server 500 Can be determined.

Specifically, the download source determination unit 720 recognizes the first weight value set in the peer-to-peer (P2P) network 200 and the second weight value set in the content delivery network server 500 can do. In addition, when it is recognized that the first weight value is greater than the second weight value, the download source determiner 720 may determine a P2P network source to download each of the plurality of chunk data based on the second information. Meanwhile, when the download source determiner 720 recognizes that the second weight value is greater than the first weight value, the content delivery network server may determine a source to download the plurality of chunk data.

According to some other embodiments, when it is recognized that the second information is in at least one chunk block in step S420, the download source determination unit 720 recognizes a weight value set in a P2P network and a content delivery network, Whether to download each of a plurality of chunk data through the P2P network 200 using the weight value set in each network and the first time and the second time in step 430 described above, or through a content delivery network, a plurality of chunks You can decide whether to download each of the data.

Specifically, the download source determiner 720 may recognize a first weight value set in a peer-to-peer (P2P) network and a second weight value set in a content delivery network. In addition, the download source determination unit 720 recognizes the first time required when downloading through the P2P network, and then uses a preset substitution algorithm stored in the memory (not shown) of the content download management server 700. The first time may be substituted with a third weight value. In addition, the download source determination unit 720 recognizes the second time required when downloading through the content delivery network, and then uses a preset substitution algorithm stored in the memory of the content download management server 700 to determine the second time. Time can be replaced with a fourth weight value. In addition, the download source determination unit 720 compares a first value obtained by adding the first weight value and the third weight value, and a second value obtained by adding the second weight value and the fourth weight value, It is possible to determine whether to download each of the chunk data of or to download each of a plurality of chunks of data through the content delivery network. That is, when it is recognized that the first value is greater than the second value, the download source determiner 720 may determine a P2P network source to download each of the plurality of chunk data based on the second information. Meanwhile, when the download source determiner 720 recognizes that the value of 2 is greater than the first value, the content delivery network server may determine a source to download the plurality of chunk data.

8 is a flowchart illustrating an example according to a state change of a first P2P network source according to some embodiments of the present disclosure.

Referring to FIG. 8, the communication unit 710 may receive state change information of a first P2P network source among a plurality of P2P network sources (S510).

For example, the communication unit 710 includes information that the terminal power and communication of the first P2P network source of the plurality of P2P network sources has been changed from On to Off, information that the first P2P network source leaves the P2P network, and the first When downloading is performed through a P2P network source, information indicating that the download speed has changed, information about the latency change of each P2P network source, etc. may be received as status change information. However, the state change information of the first P2P network source is not limited to the above-described information.

As the communication unit 710 receives the state change information of the first P2P network source, the communication unit 710 may transmit the state change information to at least one content node included in the second blockchain network 400 (S520).

Specifically, the controller 750 controls the communication unit 710 to transmit the state change information of the first P2P network source to at least one content node included in the second blockchain network 400, thereby A content node of may verify the validity of the state change information through a consensus algorithm, and as the validity of the state change information is verified, a plurality of content nodes may cause the plurality of content nodes to record the state change information in a transaction in a chunk block. Here, the transaction recorded in the chunk block includes terminal power and communication On/Off information of the first P2P network source, information on the changed download speed when downloading from the first P2P network source, and the latency change of the first P2P network source. It may contain information about.

For example, referring again to FIG. 6, the communication unit 710 may receive a signal indicating that power and communication of terminal C, which is the first P2P network source of the first chunk data, are turned off. When receiving a signal indicating that the power of terminal C and communication is off, the control unit 750 includes information that the state of terminal C, which is the first P2P network source of the first chunk data, has changed in the second blockchain network 400 The communication unit 710 may be controlled to transmit to the plurality of content nodes. Accordingly, information that the first chunk data is stored only in the E terminal may be updated in the second blockchain network 400.

On the other hand, the controller 750 generates and generates a second transaction signed with the private key of the content download management server 700 when transmitting the state change information to at least one content node included in the second blockchain network 400 The communication unit 710 may be controlled to transmit the second transaction to at least one content node. Here, the identification information generated from the private key of at least one P2P network source may be recorded in the input value of the second transaction.

In addition, address information in the blockchain networks 300 and 400 in which a second transaction including state change information and state change information of at least one P2P network source will be stored may be recorded in the output value of the second transaction. .

In some embodiments of the present disclosure, in generating a transaction including state change information of at least one P2P network source, the private key of the content download management server 700 may be used. The signature based on the private key can be recorded in the input value of the transaction.

For example, a transaction may be generated through a signature from the private key of the content download management server 700. In this situation, when the transaction is verified in the second blockchain network 400, a public key corresponding to the private key of the content download management server 700 may be used.

The second blockchain network 400 may verify a transaction issued from the content download management server 700 and share the transaction by including the transaction in a block generated through a consensus algorithm. By the above procedure, a transaction including state change information of the first P2P network source can be recorded in the second blockchain network 400, and the information contained in the recorded transaction is stored in a state where integrity can be guaranteed. Can be.

9 is a flowchart illustrating an example of a method of generating compensation information based on first information according to some embodiments of the present disclosure.

First, according to some embodiments of the present disclosure, when the user terminal 100 recognizes that the download has been completed, the compensation information generation unit 730 may generate compensation information based on the first information. Here, the compensation information is information generated based on the first information and may include information on the contribution degree of each source that has provided download to the user terminal 100. The method of generating compensation information will be described in more detail as follows.

Referring to FIG. 9, the compensation information generator 730 may recognize at least one P2P network source from which the user terminal 100 has downloaded each of the plurality of chunk data based on the first information (S610).

For example, referring again to FIG. 6, the compensation information generation unit 730 uses the second table 830 included in the first information, so that terminal A is a P2P network source of the second chunk data, and terminal B is a P2P network source of 5 chunk data, terminal C is a P2P network source of first chunk data, third chunk data, and seventh chunk data, terminal D is a P2P network source of fourth chunk data and ninth chunk data, and terminal E is It can be recognized that it is the source of the eighth chunk data.

After the user terminal 100 receives the first information, the compensation information generation unit 730 may have determined a source to download each of the plurality of chunk data using the second table 830 included in the first information. At least one P2P network source that has downloaded each of the plurality of chunk data may be recognized using the first information.

Meanwhile, referring again to FIG. 9, the compensation information generator 730 may recognize the contribution of each of the at least one P2P network source (S620).

Here, the contribution may be expressed as a score by the amount of chunk data or the number of chunk data of each of the plurality of P2P network sources provided to the user terminal 100 to download each of the plurality of chunk data for the first file.

For example, referring again to FIG. 6, the compensation information generation unit 730 may assign 1 point as a contribution degree to terminal A, which is a P2P network source that provided one second chunk data to the user terminal 100. The compensation information generation unit 730 may assign one point as a contribution degree to the terminal B, which is a P2P network source that provided one of the fifth chunk data. The compensation information generation unit 730 may assign 3 points as a contribution degree to the terminal C, which is a P2P network source that provided the first chunk data, the third chunk data, and the seventh chunk data. The compensation information generator 730 may assign 2 points as a contribution degree to the terminal D, which is a P2P network source that provided the fourth chunk data and the ninth chunk data. In addition, the compensation information generator 730 may assign 1 point as a contribution degree to the E terminal, which is a P2P network source that provided the eighth chunk data.

Meanwhile, the token payment unit 740 may determine the amount of tokens in proportion to the contribution of each P2P network source that has provided downloads to the user terminal 100. In addition, the token payment unit 740 may allocate a token to a P2P network source to which the token is to be paid. Here, the amount of tokens paid to each of the at least one P2P network source that provided download to the user terminal 100 may be proportional to the size of the contribution of each of the at least one P2P network source.

For example, the token payment unit 740 has one token for terminal A, terminal B and terminal E with a contribution of 1 point, three tokens for terminal C with a contribution of 3 points, and two tokens for terminal D with a contribution of 2 points. You can determine the amount of tokens to be awarded. In addition, the token payment unit 740 may control the communication unit 710 to transmit a token to each P2P network source to which the token is to be paid.

Meanwhile, referring again to FIG. 9, the compensation information generator 730 may generate a plurality of compensation information based on the above-described contribution (S630). Herein, the reward information is information generated based on the first information, and may include not only information on the contribution of each source that has provided download to the user terminal 100, but also scores given to the aforementioned plurality of P2P network sources. have. In addition, the reward information may include the amount of tokens to be paid to each P2P network source.

The control unit 750 controls the communication unit 710 to transmit the compensation information generated through the compensation information generation unit 730 to at least one compensation node included in the first blockchain network 300, and The validity of the reward information is verified through a consensus algorithm, and as the validity is verified, it is possible to cause a plurality of reward nodes to record the reward information as a transaction in the reward block.

Each of the reward nodes included in the first blockchain network 300 may record reward information as a transaction in a reward block through a consensus algorithm. In addition, a plurality of reward blocks may be connected by a chain referred to in the blockchain technology. In addition, when the compensation information is recorded in the first blockchain network 300, it is virtually impossible for the compensation information to be forged or altered. Accordingly, it is possible to prevent a malicious user from modifying compensation information through hacking after uploading data including a virus to the P2P network 200.

In some embodiments of the present disclosure, in generating a transaction including compensation information of at least one P2P network source, the private key of the content download management server 700 may be used. The signature based on the private key can be recorded in the input value of the transaction. In addition, the output value of the transaction may include address information and reward token information on the first blockchain network 300 of a source to be rewarded.

For example, a transaction may be generated through a signature from the private key of the content download management server 700. In this situation, when a corresponding transaction is to be verified in the first blockchain network 300, a public key corresponding to the private key of the content download management server 700 may be used.

The first blockchain network 300 may verify a transaction issued from the content download management server 700 and share the transaction by including the transaction in a block generated through a consensus algorithm. By the above procedure, a transaction including compensation information may be recorded in the first blockchain network 300, and information included in the recorded transaction may be stored in a state in which integrity can be guaranteed.

The order of the steps of FIGS. 3 to 9 described above may be changed as necessary, and at least one or more steps and/or configurations may be omitted or added. In addition, the steps and/or configurations described above are only examples of the present disclosure, and the scope of the present disclosure is not limited thereto.

10 exemplarily shows a connection structure of blocks stored in a first blockchain network and a second blockchain network according to some embodiments of the present disclosure.

Referring to FIG. 10, blocks 1400a, 1400b, and 1400c, which are storage units in the blockchain networks 300 and 400, may be connected to each other in a chain form to form a block chain. Referring to FIG. 10, blocks 1400a, 1400b, and 1400c refer to the chunk blocks or compensation blocks described above in FIGS. 1 to 9, and the blocks are not divided into chunk blocks or compensation blocks, but are referred to as blocks, and are described below. do.

Blocks 1400a, 1400b, and 1400c may be composed of a block header and a transaction. The block header may include, for example, a hash value of a previous block header, a nonce value, and a hash value of a transaction group. The nonce value is a value that a node in the blockchain networks 300 and 400 changes to create a block, and can be used as an input value of a specific hash function along with other values of the block header. When a specific nonce value is used, if the hash value of the block header is smaller than the predetermined difficulty value (which can be stored in the block header), the hash value for the corresponding block header may be determined. The hash value of the transaction group may mean the root hash value of data included in the transaction.

Since the block hash value of the block 301 (1400a) is used as an input value to obtain the block hash value of the block header of the block 302 (1400b), the block 302 (1400b) and the block 301 (1400a) may be connected to each other. In addition, in obtaining the block hash value, since the hash value of the transaction group, which is a hash value representing transactions, is used as an input value, when any forgery or alteration of a transaction occurs, the hash value of the transaction group is changed. In this way, adjacent blocks can be connected to each other, and transaction information within the block can be stored with integrity.

The transaction of blocks 1400a, 1400b and 1400c is the transaction(s) included in the block among issued transactions, and when the transaction is included in the block, the operation related to the transaction is performed in the blockchain networks 300 and 400. Can be done. Here, when the blocks 1400a, 1400b, and 1400c are chunk blocks, the transaction is information about the address of at least one source having each of a plurality of chunk data, and information about the download speed when downloading from each of the at least one source. And information about the latency of each of the at least one source. In addition, when the blocks 1400a, 1400b, and 1400c are compensation blocks, each of the compensation information for at least one source and each contribution information for at least one source may be included as a transaction. However, the present invention is not limited thereto, and various pieces of information may be recorded as transactions in the blocks 1400a, 1400b, and 1400c.

As an additional embodiment, although not shown in FIG. 10, the block header of the blocks 1400a, 1400b and 1400c has a hash value (ParentHash) of the parent block (previous block), and an uncle block of the current block (block difficulty is relatively low. Hash value (UncleHash) of blocks that were not adopted as blocks), Merkle Tree's root node hash value (TxHash) for all transactions in the block, Merkle Tree's root node hash value (ReceiptHash) of all transactions in the block , 32-byte bloom filter information used to use log information (Bloom), block difficulty (Difficulty) calculated by the difficulty and timestamp of the previous block, current block number (Number), the total number of tokens that can be paid per block (TokenLimit ), the total number of tokens used in transactions within the block (TokenUsed), the initial creation time of the block (Time), other information of the block (Extra), and/or the number of calculations sufficient to calculate the hash value from the proof of work. It may also include a value (MixDigest, Nonce). However, the present invention is not limited thereto, and the block header may further include data or information other than those described above.

11 shows a simplified and general schematic diagram of an exemplary computing environment in which embodiments of the present disclosure may be implemented.

While the present disclosure has generally been described above with respect to computer-executable instructions that can be executed on one or more computers, those skilled in the art will appreciate that the present disclosure may be implemented in combination with other program modules and/or as a combination of hardware and software. will be.

In general, modules herein include routines, procedures, programs, components, data structures, etc. that perform particular tasks or implement particular abstract data types. Further, to those skilled in the art, the method of the present disclosure is not limited to single-processor or multiprocessor computer systems, minicomputers, mainframe computers, as well as personal computers, handheld computing devices, microprocessor-based or programmable household appliances, and the like (each of which It will be appreciated that it may be implemented with other computer system configurations, including one or more associated devices).

The described embodiments of the present disclosure may also be practiced in a distributed computing environment where certain tasks are performed by remote processing devices that are connected through a communication network. In a distributed computing environment, program modules may be located in both local and remote memory storage devices.

Computers typically include a variety of computer-readable media. Computer-readable media can be any computer-readable media, including volatile and non-volatile media, transitory and non-transitory media, removable and non-transitory media. Includes removable media. By way of example, and not limitation, computer-readable media may include computer-readable storage media and computer-readable transmission media.

Computer-readable storage media include volatile and nonvolatile media, transitory and non-transitory media, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules or other data. Includes the medium. Computer-readable storage media include RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital video disk (DVD) or other optical disk storage, magnetic cassette, magnetic tape, magnetic disk storage, or other magnetic storage. Devices, or any other medium that can be accessed by a computer and used to store desired information.

Computer-readable transmission media typically implement computer-readable instructions, data structures, program modules or other data on a modulated data signal such as a carrier wave or other transport mechanism. Includes all information delivery media. The term modulated data signal refers to a signal in which one or more of the characteristics of the signal is set or changed to encode information in the signal. By way of example, and not limitation, computer-readable transmission media include wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, RF, infrared, and other wireless media. Combinations of any of the above-described media are also intended to be included within the scope of computer-readable transmission media.

An exemplary environment 1100 is shown that implements various aspects of the present disclosure, including a computer 1102, which includes a processing device 1104, a system memory 1106, and a system bus 1108. do. System bus 1108 couples system components, including but not limited to, system memory 1106 to processing device 1104. The processing unit 1104 may be any of a variety of commercially available processors. Dual processors and other multiprocessor architectures may also be used as processing unit 1104.

The system bus 1108 may be any of several types of bus structures that may be additionally interconnected to a memory bus, a peripheral bus, and a local bus using any of a variety of commercial bus architectures. System memory 1106 includes read-only memory (ROM) 1110 and random access memory (RAM) 1112. The basic input/output system (BIOS) is stored in non-volatile memory 1110 such as ROM, EPROM, EEPROM, etc. This BIOS is a basic input/output system that helps transfer information between components in the computer 1102, such as during startup. Includes routines. RAM 1112 may also include high speed RAM such as static RAM for caching data.

Computer 1102 can also be configured for external use within an internal hard disk drive (HDD) 1114 (e.g., EIDE, SATA)-this internal hard disk drive 1114 also within a suitable chassis (not shown). Yes—magnetic floppy disk drive (FDD) 1116 (for example, to read from or write to a removable diskette 1118), and optical disk drive 1120 (for example, a CD-ROM disk). (For reading 1122) or for reading from or writing to other high-capacity optical media such as DVDs). The hard disk drive 1114, magnetic disk drive 1116, and optical disk drive 1120 are each connected to the system bus 1108 by a hard disk drive interface 1124, a magnetic disk drive interface 1126, and an optical drive interface 1128. ) Can be connected. The interface 1124 for implementing an external drive includes, for example, at least one or both of USB (Universal Serial Bus) and IEEE 1394 interface technologies.

These drives and their associated computer readable media provide non-volatile storage of data, data structures, computer executable instructions, and the like. In the case of computer 1102, drives and media correspond to storing any data in a suitable digital format. Although the description of the computer-readable storage medium above refers to a removable optical medium such as a HDD, a removable magnetic disk, and a CD or DVD, those skilled in the art may include a zip drive, a magnetic cassette, a flash memory card, a cartridge, It will be appreciated that other types of computer-readable storage media, such as etc., may also be used in the exemplary operating environment and that any such media may contain computer-executable instructions for performing the methods of the present disclosure. .

A number of program modules, including the operating system 1130, one or more application programs 1132, other program modules 1134, and program data 1136, may be stored in the drive and RAM 1112. All or part of the operating system, applications, modules, and/or data may also be cached in RAM 1112. It will be appreciated that the present disclosure may be implemented on a number of commercially available operating systems or combinations of operating systems.

A user may input commands and information to the computer 1102 through one or more wired/wireless input devices, for example, a pointing device such as a keyboard 1138 and a mouse 1140. Other input devices (not shown) may include a microphone, IR remote control, joystick, game pad, stylus pen, touch screen, and the like. These and other input devices are often connected to the processing unit 1104 through the input device interface 1142, which is connected to the system bus 1108, but the parallel port, IEEE 1394 serial port, game port, USB port, IR interface, It can be connected by other interfaces such as etc.

A monitor 1144 or other type of display device is also connected to the system bus 1108 through an interface such as a video adapter 1146. In addition to the monitor 1144, the computer generally includes other peripheral output devices (not shown) such as speakers, printers, etc.

Computer 1102 may operate in a networked environment using logical connections to one or more remote computers, such as remote computer(s) 1148 via wired and/or wireless communication. The remote computer(s) 1148 may be a workstation, server computer, router, personal computer, portable computer, microprocessor-based entertainment device, peer device, or other common network node, and is generally Although including many or all of the described components, only memory storage device 1150 is shown for simplicity. The logical connections shown include wired/wireless connections to a local area network (LAN) 1152 and/or to a larger network, eg, a wide area network (WAN) 1154. Such LAN and WAN networking environments are common in offices and companies, and facilitate an enterprise-wide computer network such as an intranet, all of which can be connected to a worldwide computer network, for example the Internet.

When used in a LAN networking environment, the computer 1102 is connected to the local network 1152 via a wired and/or wireless communication network interface or adapter 1156. Adapter 1156 may facilitate wired or wireless communication to LAN 1152, which also includes a wireless access point installed therein to communicate with wireless adapter 1156. When used in a WAN networking environment, the computer 1102 may include a modem 1158, connected to a communication server on the WAN 1154, or through the Internet, etc. to establish communication through the WAN 1154 Have means. The modem 1158, which may be an internal or external and a wired or wireless device, is connected to the system bus 1108 through a serial port interface 1142. In a networked environment, program modules described for the computer 1102 or portions thereof may be stored in the remote memory/storage device 1150. It will be appreciated that the network connections shown are exemplary and other means of establishing communication links between computers may be used.

Computer 1102 is associated with any wireless device or entity deployed and operated in wireless communication, e.g., a printer, scanner, desktop and/or portable computer, portable data assistant (PDA), communication satellite, wireless detectable tag. It operates to communicate with any device or place and phone. This includes at least Wi-Fi and Bluetooth wireless technologies. Thus, the communication may be a predefined structure as in a conventional network or may simply be ad hoc communication between at least two devices.

Wi-Fi (Wireless Fidelity) allows you to connect to the Internet, etc. without wires. Wi-Fi is a wireless technology such as a cell phone that allows such devices, for example computers, to transmit and receive data indoors and outdoors, ie anywhere within the coverage area of a base station. Wi-Fi networks use a wireless technology called IEEE 802.11 (a,b,g, etc.) to provide a secure, reliable and high-speed wireless connection. Wi-Fi can be used to connect computers to each other, to the Internet, and to a wired network (using IEEE 802.3 or Ethernet). Wi-Fi networks can operate in unlicensed 2.4 and 5 GHz radio bands, for example at 11 Mbps (802.11a) or 54 Mbps (802.11b) data rates, or in products that include both bands (dual band). have.

A person of ordinary skill in the art of the present disclosure includes various exemplary logical blocks, modules, processors, means, circuits and algorithm steps described in connection with the embodiments disclosed herein, electronic hardware, (convenience). For the sake of clarity, it will be appreciated that it may be implemented by various forms of program or design code or a combination of both (referred to herein as "software"). To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the particular application and design constraints imposed on the overall system. A person of ordinary skill in the art of the present disclosure may implement the described functions in various ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The various embodiments presented herein may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term “article of manufacture” includes a computer program, carrier, or media accessible from any computer-readable device. For example, computer-readable storage media include magnetic storage devices (e.g., hard disks, floppy disks, magnetic strips, etc.), optical disks (e.g., CD, DVD, etc.), smart cards, and flash Memory devices (eg, EEPROMs, cards, sticks, key drives, etc.), but are not limited thereto. The term “machine-readable medium” includes, but is not limited to, wireless channels and various other media capable of storing, holding, and/or transmitting instruction(s) and/or data.

It is to be understood that the specific order or hierarchy of steps in the presented processes is an example of exemplary approaches. Based on the design priorities, it is to be understood that within the scope of the present disclosure a specific order or hierarchy of steps in processes may be rearranged. The appended method claims provide elements of the various steps in a sample order, but are not meant to be limited to the specific order or hierarchy presented.

The description of the presented embodiments is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these embodiments will be apparent to those of ordinary skill in the art, and general principles defined herein may be applied to other embodiments without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the embodiments presented herein, but is to be interpreted in the widest scope consistent with the principles and novel features presented herein.

Claims (19)

A computer program stored on a computer-readable storage medium, comprising:
The computer program includes instructions for causing a content download management server to perform the following operations, the operations:
Receiving a download request for the first file from the user terminal;
Determining at least one source to download each of a plurality of chunk data constituting the first file upon receiving the download request;
Transmitting first information on the at least one source to the user terminal;
When the user terminal recognizes that the download is complete, at least one P2P network source in which the user terminal downloads each of the plurality of chunk data based on the first information or download source information for each chunk data transmitted from the user terminal The operation of recognizing;
Recognizing a contribution degree of each of the at least one P2P network source;
Generating compensation information based on a contribution degree of each of the at least one P2P network source; And
By transmitting the compensation information to at least one compensation node included in the first blockchain network, a plurality of compensation nodes verify the validity of the compensation information through a consensus algorithm, and the plurality of compensation information is verified as the validity of the compensation information is verified. Causing the reward node of to write the reward information in a transaction to a reward block;
Including,
The compensation information,
Including information on the amount of tokens to be paid to each of the at least one P2P network and a contribution degree of each of the at least one P2P network source,
A computer program stored on a computer-readable storage medium. The method of claim 1,
In response to receiving the download request, determining at least one source to download each of the plurality of chunk data constituting the first file,
Searching whether there is second information on at least one peer-to-peer (P2P) network source having each of the plurality of chunk data in at least one chunk block recorded in a second blockchain network; And
If the second information is in the at least one chunk block, determining a P2P network source to download each of the plurality of chunk data based on the second information;
Containing,
A computer program stored on a computer-readable storage medium. The method of claim 2,
The operation of determining a P2P network source to download each of the plurality of chunk data,
If there are a plurality of P2P network sources for downloading the first chunk data among the plurality of chunk data, a P2P network source having the shortest time required when downloading the first chunk data is a P2P network for downloading the first chunk data Determining by source;
Containing,
A computer program stored on a computer-readable storage medium. The method of claim 2,
When the second information is present in the at least one chunk block, determining a P2P network source to download each of the plurality of chunk data based on the second information,
When the second information is present in the at least one chunk block, a first time required when downloading the first file through a P2P network and the first file are downloaded through a content delivery network. Recognizing the second time it takes; And
When it is recognized that the first time is shorter than the second time, a P2P network source to download each of the plurality of chunk data is determined based on the second information, and the second time is recognized as being shorter than the first time. In one case, determining a content delivery network server as a source to download the plurality of chunk data;
Further comprising,
A computer program stored on a computer-readable storage medium. The method of claim 2,
In response to receiving the download request, determining at least one source to download each of a plurality of chunk data constituting the first file,
When the second information is not in the at least one chunk block, determining a content delivery network server as a source to download each of the plurality of chunk data;
Further comprising,
A computer program stored on a computer-readable storage medium. The method of claim 2,
Receiving state change information of a first P2P network source among a plurality of P2P network sources; And
Upon receiving the state change information, by transmitting the state change information to at least one content node included in the second blockchain network, a plurality of content nodes verify the validity of the state change information through a consensus algorithm, Causing the plurality of content nodes to write the state change information as a transaction in a chunk block as the validity of the state change information is verified;
Containing more
A computer program stored on a computer-readable storage medium. The method of claim 6,
Each of the plurality of content nodes,
A preset node different from the user terminal,
A computer program stored on a computer-readable storage medium. The method of claim 1,
The chunk data is stored in a form in which at least a portion of the first file is cached in at least one of at least one P2P network source and a content delivery network source,
A computer program stored on a computer-readable storage medium. delete The method of claim 1,
The amount of the tokens paid to each of the at least one P2P network source is proportional to the size of the contribution of each of the at least one P2P network source,
A computer program stored on a computer-readable storage medium. The method of claim 1,
The plurality of compensation nodes,
A preset node different from the user terminal,
A computer program stored on a computer-readable storage medium. The method of claim 2,
When the second information is present in the at least one chunk block, determining a P2P network source to download each of the plurality of chunk data based on the second information,
Recognizing a first weight value set in a peer-to-peer (P2P) network and a second weight value set in a content delivery network when the second information is in the at least one chunk block;
When it is recognized that the first weight value is greater than the second weight value, a P2P network source to download each of the plurality of chunk data is determined based on the second information, and the second weight value is the first weight value Determining a content delivery network server as a source to download the plurality of chunk data when it is recognized that it is larger;
Further comprising,
A computer program stored on a computer-readable storage medium. The method of claim 1,
The operation of transmitting the compensation information to at least one compensation node included in the first blockchain network,
Generating a first transaction signed with the private key of the content download management server; And
Transmitting the generated first transaction to the at least one compensation node;
Including,
The first transaction is
A first transaction input value including identification information generated from the private key; And
A first transaction output value including address information in the first blockchain network in which the compensation information and the first transaction including the compensation information are to be stored;
Further comprising,
A computer program stored on a computer-readable storage medium. The method of claim 6,
The operation of transmitting the state change information to the at least one content node included in the second blockchain network,
Generating a second transaction signed with the private key of the content download management server; And
Transmitting the generated second transaction to the at least one content node;
Including,
The second transaction is
A second transaction input value including identification information generated from the private key; And
A second transaction output value including address information in the blockchain network in which the state change information and the second transaction including the state change information are to be stored;
Further comprising,
A computer program stored on a computer-readable storage medium. As a content download management server,
A communication unit for receiving a download request for the first file from the user terminal;
A download source determination unit determining at least one source to download each of the plurality of chunk data constituting the first file upon receiving the download request;
A control unit controlling the communication unit to transmit first information on the at least one source to the user terminal; And
When the user terminal recognizes that the download is complete, at least one P2P network in which the user terminal downloads each of the plurality of chunk data based on the first information or download source information for each chunk data transmitted from the user terminal A compensation information generator configured to recognize a source, recognize a contribution degree of each of the at least one P2P network source, and generate compensation information based on a contribution degree of each of the at least one P2P network source;
Including,
The control unit,
By controlling the communication unit to transmit the compensation information to a plurality of compensation nodes included in the blockchain network, the plurality of compensation nodes verify the validity of the compensation information through a consensus algorithm, and the validity of the compensation information is verified. Accordingly, causing the plurality of reward nodes to record the reward information in a reward block as a transaction,
The compensation information,
Including information on the amount of tokens to be paid to each of the at least one P2P network and a contribution degree of each of the at least one P2P network source,
Content download management server. The method of claim 15,
The download source determination unit,
Searching for whether there is second information on at least one peer-to-peer (P2P) network source having each of the plurality of chunk data in at least one chunk block recorded in the blockchain network,
When the second information is present in the at least one chunk block, determining a P2P network source to download each of the plurality of chunk data based on the second information,
Content download management server. As a content download management server,
A communication unit for receiving a download request for the first file from the user terminal;
A download source determination unit determining at least one source to download each of the plurality of chunk data constituting the first file upon receiving the download request;
A control unit controlling the communication unit to transmit first information on the at least one source to the user terminal; And
When the user terminal recognizes that the download is complete, at least one P2P network in which the user terminal downloads each of the plurality of chunk data based on the first information or download source information for each chunk data transmitted from the user terminal A compensation information generator configured to recognize a source, recognize a contribution degree of each of the at least one P2P network source, and generate compensation information based on a contribution degree of each of the at least one P2P network source;
Including,
The control unit,
By controlling the communication unit to transmit the compensation information to at least one compensation node included in the first blockchain network, a plurality of compensation nodes verify the validity of the compensation information through a consensus algorithm, and the validity of the compensation information is As verified, causes the plurality of reward nodes to record the reward information in a reward block as a transaction,
The compensation information,
Including information on the amount of tokens to be paid to each of the at least one P2P network and a contribution degree of each of the at least one P2P network source,
Content download management server. A computer program stored on a computer-readable storage medium, comprising:
The computer program includes instructions for causing a content download management server to perform the following operations, the operations:
Receiving a download request for the first file from the user terminal;
Determining at least one source to download each of a plurality of chunk data constituting the first file upon receiving the download request;
Transmitting first information on the at least one source to the user terminal;
When the user terminal recognizes that the download is complete, at least one P2P network in which the user terminal downloads each of the plurality of chunk data based on the first information or download source information for each chunk data transmitted from the user terminal Recognizing the source;
Recognizing a contribution degree of each of the at least one P2P network source;
Generating compensation information based on a contribution degree of each of the at least one P2P network source; And
By transmitting the compensation information to at least one compensation node included in the blockchain network, a plurality of compensation nodes verify the validity of the compensation information through a consensus algorithm, and the plurality of compensation as the validity of the compensation information is verified. Causing a node to write the reward information in a transaction in a reward block;
Including,
The compensation information,
Including information on the amount of tokens to be paid to each of the at least one P2P network and a contribution degree of each of the at least one P2P network source,
A computer program stored on a computer-readable storage medium. The method of claim 18,
In response to receiving the download request, determining at least one source to download each of the plurality of chunk data constituting the first file,
Searching for whether there is second information about at least one peer-to-peer (P2P) network source having each of the plurality of chunk data in at least one chunk block recorded in the blockchain network; And
If the second information is in the at least one chunk block, determining a P2P network source to download each of the plurality of chunk data based on the second information;
Containing,
A computer program stored on a computer-readable storage medium.

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