KR102254207B1 - Method for menaging game data on blockchain - Google Patents

Abstract

According to an embodiment of the present disclosure, a computer program stored in a computer-readable storage medium is disclosed. When the computer program is executed by one or more processors of one or more master nodes, the following operations are performed for authenticating user data, and the operations are: Receiving a user data snapshot request issued from a user node. The step of doing; Obtaining user data from a game server based on the user data snapshot request; And generating a block to be distributed to a blockchain network based at least in part on the user data obtained from the game server.

Description

How to manage game data on the blockchain {METHOD FOR MENAGING GAME DATA ON BLOCKCHAIN}

The present disclosure relates to a data management method, and more particularly, to a computing device for providing a reliable data management method.

In recent years, due to the development of information and communication technology, online games that play games on a game server and a communication connection have been developed. Users of the game use the game and generate various game data. The generated game data is generally owned by a game company or publisher, and users of the game can only temporarily use or create game data in the game. The generated game data is stored on the game company server or publisher server, and users of the game can only use the data, and can only access the game data in a manner permitted by the game system.

However, in these online games, the service may be terminated due to business decision making, or data may be lost due to unexpected mechanical problems. When the game service is terminated, there is a problem that there is no way for a user to access game data of the corresponding game service. In addition, in the event of loss of game data, the user may request or attempt to recover the lost game data, and the reliability of the user's game data between the game company or publisher and the user may be a problem during the recovery process. I can.

Accordingly, there may be a demand in the industry for an unrestricted viewing of the user's own game data and a reliable verification method between the user and the game company or publisher.

Republic of Korea Patent Publication 10-2013-0037778

An object of the present disclosure is to provide a provision method for securing transparency and stability of game data.

According to an embodiment of the present disclosure, a computer program stored in a computer-readable storage medium is disclosed. When the computer program is executed by one or more processors of one or more master nodes, the following operations are performed for authenticating user data, and the operations are: Receiving a user data snapshot request issued from a user node. The step of doing; Obtaining user data from a game server based on the user data snapshot request; And generating a block to be distributed to a blockchain network based at least in part on the user data obtained from the game server.

According to an embodiment of the present disclosure, a computer program stored in a computer-readable storage medium is disclosed. When the computer program is executed by one or more processors of a game server, the following operations are performed for authenticating user data, and the operations include: Receiving a user data snapshot request issued from a user node. ; Obtaining user data based on the user data snapshot request; And generating a block to be distributed to a blockchain network based at least in part on the user data.

According to an embodiment of the present disclosure, a master node constituting a blockchain network is disclosed. The master node constituting the blockchain network includes: a transmission/reception unit receiving a user data snapshot request from a user node, receiving user data from a game server, and distributing a block to the blockchain network; And a processor determining to acquire game data from the game server based on the user data snapshot request, and generating a block to be distributed to the blockchain network based at least in part on the user data.

According to an embodiment of the present disclosure, a game server is disclosed. The game server includes: a transmission/reception unit receiving a user data snapshot request from a user node and distributing a block to a block chain network; And a processor that determines to acquire game data of the user based on the user data snapshot request, and generates a block to be distributed to the blockchain network based at least in part on the user data.

One object of the present disclosure can be achieved by a method for providing transparency and stability of game data.

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 comprehensive understanding of one or more aspects. However, it will be apparent that such aspect(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form to facilitate describing one or more aspects.
1 shows an exemplary system for performing management of game data according to an embodiment of the present disclosure.
2 exemplarily shows a master node and a game server according to an embodiment of the present disclosure.
3 exemplarily shows user data included in a block according to an embodiment of the present disclosure.
4 exemplarily shows a game data management method performed in a master node according to an embodiment of the present disclosure.
FIG. 5 exemplarily illustrates a game data management method performed in a game server according to an embodiment of the present disclosure.
6 shows an exemplary flow chart of a game data management scheme according to an embodiment of the present disclosure.
7 shows an exemplary flow chart of a game data management scheme according to an embodiment of the present disclosure.
8 shows an exemplary flow chart of a game data management scheme according to an embodiment of the present disclosure.
9 exemplarily shows a connection structure of blocks stored in a blockchain network according to an embodiment of the present disclosure.
10 shows a 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 the one or more aspects. However, these aspects are illustrative 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.

Further, various aspects and features will be presented by a system that may include one or more computing devices, terminals, servers, devices, components and/or modules, and the like. Devices, terminals, servers discussed in connection with the figures and/or that various systems may include additional computing devices, terminals, servers, devices, components and/or modules, etc. It should also be understood and recognized that it may not include all of, devices, components, modules, etc.

The terms "computer program," "component", "module", and the like used herein may be used interchangeably with each other. For example, a component may be, but is not limited to, a process executed on a processor, a processor, an object, a thread of execution, a program, and/or a computer. For example, both an application running on a computing device and a computing device may be components. One or more components may reside within a processor and/or thread of execution. A component can be localized within a single computer. A component can be distributed between two or more computers.

In addition, these components can execute from a variety of computer readable storage media having various data structures stored therein. Components can be, for example, through a signal with one or more data packets (e.g., data from one component interacting with another component in a local system, a distributed system and/or a signal through another system and a network such as the Internet. Depending on the data being transmitted), it may communicate via local and/or remote processes.

As used herein, “an embodiment,” “example,” “aspect,” “example,” and the like may not be construed as having any aspect or design described as being better or advantageous than other aspects or designs. . The terms'component','module','system', and'interface' used below generally mean a computer-related entity, for example, a combination of hardware, hardware and software. , Or software.

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 feature and/or component is present, but excludes the presence or addition of one or more other features, components and/or groups thereof. It should be understood as not doing. In addition, unless otherwise specified or when the context is not clear to indicate a singular form, the singular in the specification and claims should be interpreted as meaning "one or more" in general.

In the present specification, the computer-readable medium may include all kinds of media in which programs and data are stored so as to be readable by a computer system. Computer-readable media in the present disclosure may include computer-readable storage media and computer-readable transmission media. According to one aspect of the present invention, a computer-readable storage medium includes: ROM (read only memory), RAM (random access memory), CD (compact disk)-ROM, DVD (digital video disk)-ROM, magnetic tape, floppy It may include a disk, an optical data storage device, and the like. Further, the computer-readable transmission medium may include any transportable medium implemented in the form of a carrier wave (eg, transmission over the Internet). Additionally, such computer-readable media may be distributed over networked systems to store computer-readable codes and/or instructions in a distributed manner.

Prior to describing specific details for the implementation of the present invention, it should be noted that configurations that are not directly related to the technical gist of the present invention have been omitted within the scope not disturbing the technical gist of the present invention. In addition, terms or words used in the present specification and claims are based on the principle that the inventor can define the concept of an appropriate term to describe his or her invention in the best way, and has a meaning consistent with the technical idea of the present invention. It should be interpreted as a concept.

1 shows an exemplary system for performing management of game data according to an embodiment of the present disclosure.

As shown in Fig. 1, the system for performing game data management includes user nodes 100a, 100b and 100c: 100, game server 200, master node 300, blockchain network 400, and communication. Network 500 may be included. Components illustrated in FIG. 1 are exemplary, and additional components may exist or some of the components illustrated in FIG. 1 may be omitted.

The user node 100 has a mechanism for communicating with each other or with other nodes through the communication network 500, and may mean any type of node in the system for performing the game data management. For example, user node 100 may include a PC, laptop computer, workstation, terminal, and/or any electronic device with network connectivity. In addition, the user node 100 may include an arbitrary server implemented by at least one of an agent, an application programming interface (API), and a plug-in. In addition, the user node 100 may include an application source and/or a client application.

The user node 100 may be any entity capable of processing and storing arbitrary data, including a processor and a storage unit (memory and permanent storage medium).

The processor in the present disclosure may be composed of one or more cores, and a central processing unit (CPU), a general purpose graphics processing unit (GPGPU), and a tensor processing unit (TPU: Tensor processing unit) may include an arbitrary type of processor for performing game data management by executing instructions stored on a memory. The processor may read a computer program stored in a memory to perform a game data management technique according to an embodiment of the present disclosure.

The memory in the present disclosure may store a program for operation of a processor, and may temporarily or permanently store input/output data. Memory is a flash memory type, hard disk type, multimedia card micro type, card type memory (for example, SD or XD memory, etc.), RAM (Random Access). Memory, RAM), SRAM (Static Random Access Memory), ROM (Read-Only Memory, ROM), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory), magnetic memory, magnetic disk, optical disk At least one type of storage medium may be included. Such a memory can be operated under control of a processor. In addition, in the present disclosure, the memory and the storage unit may be used interchangeably with each other.

The user node 100 in FIG. 1 may be associated with a user who wants to access at least one of the game server 200, the master node 300, and the blockchain network 400.

The user node 100 may issue a query or a transaction to at least one of the game server 200, the master node 300, and the blockchain network 400. The query in this disclosure can be used to query game data registered on the blockchain network 400. The transaction in the present disclosure may be used to perform an update (modification/change/delete/add) to game data recorded on the blockchain network 400.

The user node 100 may transmit and receive an application source written in a programming language. For example, the user node 100 may generate a client application by compiling an application source. For example, the generated client application may be executed after being delivered to at least one of the game server 200, the master node 300, and the blockchain network 400.

The user node 100 may create a smart contract that can be operated on the blockchain network 400 using an arbitrary language such as Solidity. In addition, the user node 100 may generate a transaction for distributing the generated smart contract to the blockchain network 400. In an embodiment of the present disclosure, the user node 100 may be a component of one or more master nodes 300 and a public blockchain network 400. The user node 100 may operate as a full blockchain node or a lightweight blockchain node according to an embodiment of the present disclosure. In another embodiment of the present disclosure, the user node 100 may obtain only data from the blockchain network 400 without configuring the blockchain network 400.

The user node 100 can access the game server 200 to play a game provided by the game server, and can store any type of game-related items, game characters, and game systems acquired or purchased in the process of playing the game. Can be used in-game. The game in the present specification may include any type of game such as a mobile game, a web game, a VR game, a P2P game, and an online/offline game.

In addition, the user node 100 may generate the game data snapshot request and transmit it to at least one of the game server 200, the master node 300, and the blockchain network 400. In addition, the user node 100 may receive game data from at least one of the game server 200, the master node 300, and the blockchain network 400.

The game data may include all records of games played by multiple users on the game. The user data may include a record of a game played by a specific user on the game among game data. The user data may include information related to a user's in-game character, game performance history information, and information on interactions with other users. User data is composed of a snapshot and may include data at a specific point in time, and at a specific point in time, a user data snapshot is created, a user request for user data, or a game server sends user data to the master node 300. It may include data of a time point of transmission and a time point at which the game server 200 generates a block based on user data.

The user node 100 may also operate as a node constituting the blockchain network 400. In this example, the user node 100 may implement at least one of a wallet function, a minor function, and a full blockchain data storage function. For example, when the user node 100 includes only a wallet function, it may operate as a node that performs transaction and validation (eg, a Simplified Payment Verification (SPV) node).

Since the user node 100 has a display, it can receive a user's input and provide an arbitrary form of output to the user in performing game play and/or creating a snapshot of user data.

Game server 200 and master node 300 according to an embodiment of the present disclosure may be any type of computer system or computer such as, for example, a microprocessor, a mainframe computer, a digital processor, a portable device and a device controller, etc. It may include a device. Although not shown in FIG. 1, the game server 200 and the master node 300 may include a memory and a processor.

The game server 200 may allow the user node 100 to play a game.

The master node 300 may be a computing device that performs a management function of user data on a blockchain network according to an embodiment of the present disclosure. The master node 300 may be a computing device owned by a publisher or a game company. In an embodiment of the present disclosure, the master node 300 may be a computing device for game publishing, or may be a computing device configured separately for preserving game data. The master node 300 may communicate with a game server of one or more types of games. In an embodiment of the present disclosure, the master node 300 may be a constituent entity of one or more blockchain networks.

In FIG. 1, the game server 200 and the master node 300 are separated and represented as separate entities, but the master node 300 is included in the game server 200 according to an embodiment of the present disclosure, and a game play function And it is also possible to perform the game data management function in one integrated server. In this example, when the function of the master node 300 is integrated into the game server 200, the user node 100 can perform preservation on the blockchain network for user data in an in-game. In this case, in order to preserve user data on the blockchain network, the goods in the game may be settled and used as a cost.

In addition, when the master node 300 and the game server 200 are separated, the user node 100 manages the management of user data on the blockchain network through the master node 300 existing outside the game server 200. You can do it. In this case, the user node 100 may configure the master node 300 and a public blockchain network. In this case, the master node 300 may communicate with the game server 200 and the blockchain network 400 to implement preservation of user data on the blockchain network.

Additionally, at least one of the game server 200 and the master node 300 may operate as a node constituting the blockchain network 400. In this case, the blockchain network 400 may be a private blockchain network or a public blockchain network.

In one embodiment of the present disclosure, the blockchain network 400 may mean a plurality of nodes operating based on blockchain technology. Here, the blockchain technology is a distributed storage technology that stores data to be managed in a plurality of nodes constituting a blockchain network by using a storage structure in which blocks are connected in a chain form.

The blockchain network 400 may store a transaction transmitted from at least one of the user node 100, the game server 200, and the master node 300 in a block form based on a predetermined consensus algorithm. Data stored in a block form may be shared by a plurality of nodes constituting the block chain network 400. Data stored in block form may include user data, and user data includes, for example, image data such as screenshots of game data accumulated by the user on the game server, text data, and interactions with game data. It may be in the form of a possible executable file (for example, in the case of a screenshot image of the character equipment window, an executable file that allows the ability of the corresponding equipment to be checked through user input such as clicking), etc., and encryption according to the embodiment It could be.

Although the block chain network 400 is represented as a separate entity in FIG. 1, the block chain network 400 is at least one of the game server 200 and/or the master node 300 according to the embodiment of the present disclosure. It may be implemented in the form included in.

The blockchain network 400 is a public blockchain network in which arbitrary nodes can perform consensus operations, or a private blockchain network in which only predetermined nodes can perform consensus operations, depending on the implementation type. May include a network.

The consensus algorithm performed in the blockchain network 400 according to an embodiment of the present disclosure is: PoW (Proof of Work) algorithm, PoS (Proof of Stake) algorithm, DPoS (Delegated Proof of Stage) 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, Proof of Authority (PoA) Algorithm, and/or Proof of Elapsed Time) algorithm.

In an exemplary embodiment of the present disclosure, nodes in the blockchain network 400 may operate by a blockchain core package according to a hierarchical structure. The hierarchical structure is: a data layer that defines the structure of data handled by the blockchain network 400 and manages data, a fee paid to miners during mining, performing mining to verify the validity of blocks and generating blocks The consensus layer in charge of processing of, the execution layer that processes and executes smart contracts, the P2P network protocol, the hash function, the common layer that implements and manages digital signatures, encoding and common storage, and various applications are created, processed and managed. It can include an application layer.

According to an embodiment of the present disclosure, by using the blockchain network 400 to store user data, it is possible to allow the user to retain the user's game data, and the integrity of the user data held by the user may be provided. In addition, it is possible to prevent the problem of losing user data according to the business judgment of the game business.

Communication network 500 according to an embodiment of the present disclosure is a public switched telephone network (PSTN), x Digital Subscriber Line (xDSL), Rate Adaptive DSL (RADSL), Multi Rate DSL (MDSL), VDSL. Various wired communication systems such as (Very High Speed DSL), Universal Asymmetric DSL (UADSL), High Bit Rate DSL (HDSL), and local area network (LAN) can be used.

In addition, the communication network 500 presented in the present disclosure includes Code Division Multi Access (CDMA), Time Division Multi Access (TDMA), Frequency Division Multi Access (FDMA), Orthogonal Frequency Division Multi Access (OFDMA), and SC-FDMA. Various wireless communication systems such as (Single Carrier-FDMA) and other systems can be used. The techniques described in this disclosure may be used not only in the networks mentioned above, but also in any type of other communication networks.

Smart contracts according to embodiments of the present disclosure may be written in a digital language for performing preservation of user data on a blockchain network and executed on any computing device. That is, when a code and/or a function included in a smart contract is executed, an arbitrary type of user data according to embodiments of the present disclosure may be performed on a blockchain network.

The smart contract according to the embodiments of the present disclosure may be applied to at least one of a method of creating a new smart contract, a method of executing a function on a specific smart contract, or a method of transmitting a coin operable in the blockchain network 400. Can be implemented by In addition, smart contracts can be executed by transactions or other contracts generated by externally owned accounts.

Coin in this specification may mean any form of cryptocurrency that can be operated on the blockchain network 400. These coins may be convertible into cash according to the market price by the master node 300 or the game server 200.

Smart contracts for performing management of user data on a blockchain network according to embodiments of the present disclosure execute transactions, for example, to prevent malicious code such as infinite repetition and to ensure the integrity of data related to user data. It may be stipulated that certain execution costs be paid at the time. The execution cost here may mean any type of coin that can be traded on the blockchain network 400 or another type of medium that can be interlocked with the coin (eg, gas, etc.). As a non-limiting example, the base execution cost of the transaction may be set to 21,000 gas. For example, such execution costs may include the cost of processing the Elliptic Curve Digital Signature Algorithm (ECDSA) for the account address of the issuer of the transaction, the storage cost for storing the transaction, and the network bandwidth cost. If the smart contract is defined to pay a specific cost when executing a smart contract, malicious attacks such as infinite execution such as intentional DDoS attacks can be prevented.

In addition, an execution cost policy in which an entity that creates or wants to execute a smart contract staking a specific amount (coin, token, etc.) on the blockchain network and then executes the smart contract without paying additional fees. May be used. In this case, when staking is terminated, execution of the smart contract is not allowed.

In order to perform management of user data on a blockchain network according to embodiments of the present disclosure, calls between smart contracts may be implemented using a structure called a message. For example, these messages can be generated by a contract account (CA), and can be delivered to other contracts when a function is called. In one embodiment, since the message in this case is generated and processed inside the blockchain network 400, unlike a transaction occurring in an externally owned account, a separate execution cost such as gas may not be incurred.

In implementing the preservation of user data on a blockchain network according to embodiments of the present disclosure, information included in the transaction when synchronizing through the blockchain by including a function of a smart contract in a transaction in the form of a compiled code A smart contract can be implemented in a way that executes the function expressed in code by using as the input of the function and stores the result in a separate state.

When the contents of the function and the input of the function are shared by the smart contract shared in the blockchain network 400, the integrity of the data can be guaranteed even if the result of the function is not separately shared.

In a further embodiment, the computing devices that make up the blockchain network 400 of the present disclosure for performing management of user data on the blockchain network include a transaction storage database that changes the state of the smart contract and the latest smart contract. It can also include a smart contract database that keeps state. In this case, the smart contract for management of user data on the blockchain network in the present disclosure is an application that can change the state on the blockchain network 400 (i.e., user data on the blockchain network). Application for management), and the state of the smart contract can be defined as a variable used by the application (i.e., an application for management of user data on the blockchain network), and input to change it The value may be included in a transaction issued from at least one of the game server 200, the master node 300, and the user node 100.

In a further embodiment, the database storing the state of the smart contract may be combined with the database storing the transaction to achieve a high compression rate. In addition, in order to achieve the distributed consensus of the database storing the state of the smart contract and the low dependency of the smart contract, it can operate separately from the database storing the transaction.

2 exemplarily shows a game server 200 and a master node 300 according to an embodiment of the present disclosure.

As shown in FIG. 2, the game server 200 may include a processor 201, a storage unit 202, and a transmission/reception unit 203, and the master node 300 includes a processor 301, a storage unit ( 302) and a transmission/reception unit 303 may be included. The above-described components are exemplary, and the scope of the present disclosure is not limited to the above-described components. That is, additional components may be included or some of the above-described components may be omitted according to implementation aspects of the embodiments of the present disclosure.

In FIG. 2, for convenience of description, only an example of an embodiment in which the game server 200 and the master node 300 are separated is shown, but the game server 200 is configured according to an implementation mode according to an embodiment of the present disclosure. It may include all the functions of the master node 300. In this case, the components 201, 202, and 203 of the game server 200 may perform functions of the components 301, 302, and 303 of the master node 300. Depending on the implementation aspect according to the embodiment of the present disclosure, the game server 200 and one or more master nodes 300 may form a private blockchain network, and the game server 200 functions of the master node 300 It is also possible to configure user nodes and public blockchain networks including all of them.

According to an embodiment of the present disclosure, the game server 200 may include a transmission/reception unit 203 for receiving a snapshot request for game data from a user who desires a game data snapshot. The transmission/reception unit 203 may distribute a block generated at least partially based on user data to a blockchain network, and when receiving a query for a block from a user node, may transmit the block to the user node.

The transceiver 203 may include a wired/wireless Internet module for network access. As a wireless Internet technology, WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless broadband) Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), and the like may be used. As a wired Internet technology, XDSL (Digital Subscriber Line), FTTH (Fibers to the Home), PLC (Power Line Communication), and the like may be used. In addition, the transceiver 203 may include a short range communication module. As a short-range communication technology, Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

The transmission/reception unit 203 may perform communication with the user node 100, communication with the blockchain network 400, communication with other servers, and communication with the master node 300.

The storage unit 202 may store information in an arbitrary form generated or determined by the processor 201 and information in an arbitrary form received by the transmission/reception unit 203 in the game server 200. The storage unit 202 may include a memory and/or a permanent storage medium. The storage unit 202 may store game data. The game data may include records of games played by multiple users on the game. The user data may include a record of a game played by a specific user on the game among game data. The user data may include information related to a user's in-game character, game performance history information, and information on interactions with other users. User data is composed of a snapshot and may include data at a specific point in time, and the specific point in time is a point in time when a user requests user data or a point in time when the game server delivers user data to the master node 300, game server 200 May include data of a time point at which a block is generated based on user data.

The information related to the character in the game may include all types of achievements achieved by the user for his character. For example, the information related to the character in the game may include information related to the user character's identification information, name, level, item, race, class, stats, title, production abilities, possessed skills, etc. The related information is only an example, and the present disclosure is not limited thereto.

The game performance history information may include all types of achievements achieved by the user for the game system. For example, the game performance history information may include a user's achievements, a list of quests, a story stage, a clear record for each difficulty level, the number of boss monsters cleared, a target time for a boss monster, a duel ranking, etc. One game performance history information is only an example, and the present disclosure is not limited thereto.

Interaction information with other users may include all types of achievements in which the user has interacted with other users. For example, interaction information with other users includes group information such as a user's clan, clan, guild, etc., the number of PKs against other users, records of wins or losses against a specific user, ranking within the game, and status of the user. Information and the like may be included, and the above-described interaction information with other users is only an example, and the present disclosure is not limited thereto.

The processor 201 may control overall operations of the components of the game server 200 to allow management of game data on the blockchain. For example, the processor 201 may determine to store game data, identify user data in the game data, and determine to include the user data in a block on the blockchain network 400 and store it on the blockchain.

The master node 300 receives a user data snapshot request issued from the user node, acquires user data from the game server 200 based on the user data snapshot request, and converts a block based on the user data into a block chain network ( It may include a transmission/reception unit 303 distributed to 400). In addition, the transmission/reception unit 303 may receive a query query for user data stored in the blockchain network 400 from user nodes.

The transceiver 303 may include a wired/wireless Internet module for network access. As a wireless Internet technology, WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless broadband) Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), and the like may be used. As a wired Internet technology, XDSL (Digital Subscriber Line), FTTH (Fibers to the Home), PLC (Power Line Communication), and the like may be used. In addition, the transmission/reception unit 303 may include a short range communication module. As a short-range communication technology, Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

The transmission/reception unit 303 may perform communication with the user node 100, communication with the blockchain network 400, and communication with other servers.

The storage unit 302 may store information in an arbitrary form generated or determined by the processor 301 and information in an arbitrary form received by the transmission/reception unit 303 in the master node 300. The storage unit 302 may include a memory and/or a permanent storage medium.

The processor 301 may generate a block to be distributed to the blockchain network 400 in order to store user data as a block on the blockchain network 400. The processor 301 may generate a block including user data by taking the user data and the user data snapshot request issued from the user node as one transaction.

Although not shown in FIG. 2, at least one of the game server 200 and the master node 300 may operate as a computing device constituting the blockchain network 400. In this case, the computing device may include a processor and a memory storing a computer program executable by the processor.

According to one embodiment of the present disclosure, the computing device may receive a transaction for a user data snapshot request issued from a user node. Also, the computing device may acquire user data based on the user data snapshot request. The computing device may include the user data in a block generated according to a consensus algorithm. The processor in the computer device includes user data on a block and distributes it on the blockchain network 400, thereby allowing the user node to access the user data and providing verification of the user data.

3 exemplarily shows game data included in a block according to an embodiment of the present disclosure.

The game data may include all records of games played by multiple users on the game. The user data may include a record of a game played by a specific user on the game among game data. The user data may include information related to a user's in-game character, game performance history information, and information on interactions with other users. User data is composed of a snapshot and may include data at a specific point in time, and at a specific point in time, a user data snapshot is created, a user request for user data, or a game server sends user data to the master node 300. It may include data of a time point of transmission and a time point at which the game server 200 generates a block based on user data.

Data stored in block form may include user data, and user data includes, for example, image data such as screenshots of game data accumulated by the user on the game server, text data, and interactions with game data. It may be in the form of a possible executable file (for example, in the case of a screenshot image of the character equipment window, an executable file that allows the ability of the corresponding equipment to be checked through user input such as clicking), etc., and encryption according to the embodiment It could be.

3 is an example of user data 450 that may be included in game data. The user data 450 may include, for example, image data such as a screenshot of game data. The user data 450 may include, for example, a character state image 451 representing the overall state of the character. The character state image 451 may include a character image 453 and a character equipment image 452. In one embodiment of the present disclosure, the user data may be implemented in the form of an executable file. In this case, when the user selects the equipment image 452 of the character on the character state image 451, detailed information of the corresponding equipment is displayed. Can be obtained. In an embodiment in which such user data is implemented in the form of an executable file, the user data may be composed of command codes including operations of the executable file.

Also, for example, the user data may include a detailed information image 454 of a character state. The detailed information image 454 of the character state may include detailed information on the character's ability value.

The user data may include, for example, an interaction information image 455 related to the character's interaction with the game system. The interaction information image 455 may include an interaction with the game system performed by the character (for example, achievement information in the game such as stage clear record, achievement information related to interaction with other players, etc.). have.

The above-described user data is only an example, and the user data stored on the blockchain network of the present disclosure may include game data in any form.

4 exemplarily shows a game data management method performed in a master node according to an embodiment of the present disclosure.

The steps illustrated in FIG. 4 are exemplary steps, and it will be apparent to those skilled in the art that some of the steps of FIG. 4 may be omitted or additional steps may exist without departing from the scope of the spirit of the present disclosure.

The master node 300 may receive a user data snapshot request issued from the user node (610). The user data snapshot request may be a request for a snapshot at a specific point in time of user data generated based on a record of a game played by a user on a game server. In one embodiment of the present disclosure, when the user node 100 forms a public blockchain network with the master node 300, the user data snapshot request issued from the user node 100 blocks the user data snapshot. It can be a transaction to keep in the chain network. In this case, the user data snapshot request may be a transaction signed with the private key of the user node. In this case, the master node 300 may receive a user data snapshot request from the user node and a user data snapshot request signed with the private key of the user node. In another embodiment of the present disclosure, the user node 100 may not be a constituent node of the blockchain network, and in this case, the user node 100 generates a user data snapshot request and transmits it to the master node 300. I can.

The master node 300 may verify whether the user data snapshot request issued from the user node is valid with the public key of the user node. The master node 300 may verify a transaction for a user data snapshot request encrypted with the private key of the user node based on public key information paired with the private key of the user node. The master node 300 may verify whether the user data snapshot request issued from the user node has ownership of the user data.

The master node 300 may acquire user data from the game server based on the user data snapshot request (620).

The master node 300 may transmit the access token included in the user data snapshot request to the game server to obtain user data based on the access token. The access token contains information for identifying user data, and may be settled as an execution cost for a user data snapshot request. The access token may be issued from the game server and delivered to the user node. After the user node accesses the game server and undergoes authentication procedures such as login, the user node may request an access token for a snapshot of the user data, and the user node may transfer it to the master node. In one embodiment of the present disclosure, the access token may be settled as an execution cost for a snapshot request in a blockchain network. In addition, in another embodiment of the present disclosure, the access token may be generated through payment of in-game goods.

The master node 300 may transmit the access token included in the user data snapshot request to enable the game server 200 to identify which user the user data snapshot request is. When receiving the access token, the game server 200 may identify the user data snapshot request for which user based on the access token, and check whether the access token issued by the game server 200 is correct, and the user data snapshot request is You can also determine whether it is valid or not.

The master node 300 may query the game server 200 whether or not the user data snapshot request is valid. The master node 300 may verify the validity of the user data snapshot request through the game server 200 using the access token. The master node 300 may transmit the access token included in the user data snapshot request to the game server 200 to cause the game server 200 to verify whether the user data snapshot request is valid.

In an embodiment of the present disclosure, the master node 300 may request user data from the game server 200 when a predetermined condition is satisfied. When receiving a user data snapshot request from a user node, the master node 300 may request user data from the game server 200, but when a predetermined condition is satisfied irrespective of the user data snapshot request, the game server User data can be requested from (200). The predetermined condition may include a case where there is a need for preservation of the user's game data. For example, the predetermined condition includes a time period, whether a specific user is a specific user, whether the user has achieved achievements in a specific game, conditions related to the operation state of the game server 200, conditions related to the necessity of a game service, etc. However, the present disclosure is not limited thereto.

For example, the master node 300 may acquire user data for a specific user at a specific cycle and store it on a blockchain network. In addition, the master node 300 may store user data of a user who has achieved a specific achievement in the game on the blockchain network. For example, when a specific user clears a specific boss monster in a game first, such data needs to be preserved, so the master node 300 acquires game data for this and uses it on the blockchain network 400. Can be preserved. In addition, the master node 300 may periodically acquire user data and store it on the blockchain network 400. When the game server 200 performs regular inspection or large-scale updates, the user data is stored in the blockchain network. User data may be obtained for preservation on 400. In addition, for example, the master node 300 may acquire user data in order to preserve the user data on the blockchain network 400 when the game service is terminated. In this case, the master node 300 may obtain a user authentication right for accessing user data on the game server 200 from the user node 100 or the game server 200, or may generate itself.

The master node 300 may generate a block to be distributed to the blockchain network 400 based at least in part on the user data obtained from the game server 200 (630). The master node 300 may allow a block to be distributed to the blockchain network 400 to include user data. The master node 300 may allow a transaction including user data to be included in a block to be distributed to a blockchain network. In an embodiment of the present disclosure, the master node 300 may perform mining to generate a block, and the master node 300 may perform mining on its own or transmit the above-described transaction to the mining pool to be mined. You may.

When the user data received from the game server 200 satisfies a predetermined condition, the master node 300 may generate a block to be distributed to a blockchain network. The predetermined condition is a condition for preventing generation of too many blocks, and may be a criterion for determining whether it is desirable to generate a block for user data.

For example, the predetermined condition may include an amount of user data, content included in the user data, identification information included in the user data, a time period, and the like. For example, the amount of user data may be a condition for determining when a certain number or more of user data is accumulated in the master node 300. As a more specific example, when a sufficient amount of user data (eg, 10 pieces) is accumulated to generate a block, the master node 300 may generate a block. The amount of user data described above is only an example, and the present disclosure is not limited thereto.

For example, the content included in the user data may be a condition for determining whether the user data is worth preserving on the blockchain network. For example, when the content included in the user data indicates that the user is a ranker, when the content included in the user data indicates that the user has a special skill or item, the corresponding user Blocks can be created to store user data on a blockchain network, such as when achievements in a particular game are achieved.

The master node 300 may perform mining to generate a block to be distributed to a blockchain network by integrating a user data snapshot request and user data into a single transaction. The master node 300 may perform mining to generate a block to be distributed to a blockchain network by integrating the user data snapshot request (first transaction) and user data (second transaction) into one transaction.

The master node 300 may sign a transaction including user data to be included in the generated block with the master node's private key.

The master node 300 may include a user public key indicating the owner of the user data in the block. The master node 300 may generate a block by including user data and a user public key in a transaction included in the block.

In addition, the master node 300 may distribute the public key of the master node to verify the validity of the block. The master node 300 may include the public key of the master node in a block and distribute it on the blockchain network 400. By including and distributing the public key of the master node that can verify the validity of the block, the user data held by the user can have public confidence. Can claim the validity of user data.

In one embodiment of the present disclosure, one or more master nodes may form a separate blockchain network from user nodes. In this case, the master node 300 may distribute the block to the user node when validity is authenticated by distributing the block to another master node. In this case, the user node 100 may be a constituent node of a blockchain network, or a peer that simply requests an inquiry about data stored in the blockchain network.

5 exemplarily shows a game data management method performed in a game server according to an embodiment of the present disclosure.

The steps shown in FIG. 5 are exemplary steps, and it will be apparent to those skilled in the art that some of the steps of FIG. 5 may be omitted or additional steps may exist without departing from the scope of the spirit of the present disclosure.

The game server 200 may receive a user data snapshot request issued from a user node (611). The user data snapshot request may be a request for a snapshot at a specific point in time of user data generated based on a record of a game played by a user on a game server. In one embodiment of the present disclosure, when the user node 100 forms a public blockchain network with the game server 200, the user data snapshot request issued from the user node 100 blocks the user data snapshot. It can be a transaction to keep in the chain network. In this case, the user data snapshot request may be a transaction signed with the private key of the user node. In this case, the game server 200 may receive a user data snapshot request from the user node and a user data snapshot request signed with the private key of the user node. In another embodiment of the present disclosure, the user node 100 may not be a component node of the blockchain network, in which case the user node 100 generates a user data snapshot request and transmits it to the game server 200. I can.

The game server 200 may verify whether a user data snapshot request issued from a user node is valid. The game server 200 may verify whether the user data snapshot request is valid with the public key of the user node. The game server 200 may verify a transaction for a user data snapshot request encrypted with the user node's private key based on public key information paired with the user node's private key. The game server 200 may verify whether the user data snapshot request issued from the user node has ownership of the user data.

In another embodiment of the present disclosure, the game server 200 may determine the validity of the user data snapshot request based on user identification information. For example, the game server 200 may determine whether the user node 100 has requested a user data snapshot for game data owned by the user node 100 based on user identification information. In a more specific example, the game server 200 may determine the validity of the user data snapshot request based on the login information of the user node.

The game server 200 may acquire user data based on the user data snapshot request (621).

The game server 200 may acquire user data from game data based on a user data snapshot request. When receiving a user data snapshot request from a user node, the game server 200 may identify user data of a corresponding user from the game data based on the user data snapshot request. The game server 200 may receive a user data snapshot request and an access token from a user node. In one embodiment of the present disclosure, the access token may include information for identifying user data, and may be settled as an execution cost for a user data snapshot request. The access token may be issued from the game server and delivered to the user node. After the user node accesses the game server and undergoes authentication procedures such as login, the user node may request an access token for a snapshot of the user data, and the user node may transmit it to the game server. In one embodiment of the present disclosure, the access token may be settled as an execution cost for a snapshot request in a blockchain network. In addition, in another embodiment of the present disclosure, the access token may be generated through payment of in-game goods. In another embodiment of the present disclosure, the access token may be processed in the process of authenticating the access right to the user's user data in the game server 200, and in this case, it may not be delivered to the user node 100. have. That is, the user node 100 may generate a snapshot request for user data, which is its own game data, using in-game goods.

When receiving the access token, the game server 200 may identify the user data snapshot request for which user based on the access token, and check whether the access token issued by the game server 200 is correct, and the user data snapshot request is You can also determine whether it is valid or not.

In one embodiment of the present disclosure, when a predetermined condition is satisfied, the game server 200 may acquire user data to store the user data on a blockchain network. The game server 200 may load user data when a predetermined condition is satisfied irrespective of the user data snapshot request. The predetermined condition may include a case where there is a need for preservation of the user's game data. For example, the predetermined condition includes a time period, whether a specific user is a specific user, whether the user has achieved achievements in a specific game, conditions related to the operation state of the game server 200, conditions related to the necessity of a game service, etc. However, the present disclosure is not limited thereto.

For example, the game server 200 may acquire user data for a specific user at a specific period and store it on a blockchain network. For example, a specific user may include a paid service user, a user with a high ranking, and the like, but the present disclosure is not limited thereto.

In addition, for example, the game server 200 may store user data of a user who has achieved a specific achievement in a game on a blockchain network. For example, when a specific user clears a specific boss monster in a game first, such data needs to be preserved, so the game server 200 acquires game data for this and uses it on the blockchain network 400. Can be preserved.

In addition, the game server 200 may periodically acquire user data and store it on the blockchain network 400. When the game server 200 performs regular inspection or large-scale updates, the user data is stored in the blockchain network. User data may be obtained for preservation on 400.

In addition, for example, the game server 200 may acquire user data in order to preserve the user data on the blockchain network 400 when the game service is terminated. In this case, the game server 200 may acquire a user authentication right for accessing user data from the user node 100 or may generate itself.

The game server 200 may generate a block to be distributed to the blockchain network 400 based at least in part on the acquired user data (631). The game server 200 may allow a block to be distributed to the blockchain network 400 to include user data. The game server 200 may allow a transaction including user data to be included in a block to be distributed to a blockchain network. In an embodiment of the present disclosure, the game server 200 may perform mining to generate blocks. The game server 200 may perform mining on its own, or may transmit the above-described transaction to a mining pool to be mined.

The game server 200 may perform mining to generate a block to be distributed to a blockchain network by integrating the user data snapshot request and the user data into one transaction. The game server 200 may perform mining to generate a block to be distributed to a blockchain network by integrating the user data snapshot request (first transaction) and user data (second transaction) into one transaction.

The game server 200 may include a user public key indicating the owner of the user data in the block. The game server 200 may generate a block by including user data and a user public key in a transaction included in the block.

The game server 200 may sign a transaction including user data to be included in the generated block with the private key of the game server.

In addition, the game server 200 may distribute the public key of the game server to verify the validity of the block. The game server 200 may include the public key of the game server in a block and distribute it on the blockchain network 400. By including and distributing the public key of the game server that can verify the validity of the block in the block, the user data held by the user can have public confidence. Can claim the validity of user data.

In one embodiment of the present disclosure, one or more game servers may form a separate blockchain network from the user node. In this case, the game server 200 may distribute the block to the user node when validity is authenticated by distributing the block to another game server. In this case, the user node 100 may be a constituent node of a blockchain network, or a peer that simply requests an inquiry about data stored in the blockchain network.

6 shows an exemplary flow chart of a game data management scheme according to an embodiment of the present disclosure.

The flowchart illustrated in FIG. 6 exemplarily shows a method of storing game data and user data on a blockchain in which the master node 300 operates as a separate entity for the game server 200.

For features that overlap with the features described above with respect to FIGS. 4 to 5 among the features of the content illustrated in FIG. 6, the content described in FIGS. 4 to 5 will be referred to, and a description thereof will be omitted here.

As shown in FIG. 6, the user node 100 may issue and transmit a user data snapshot request to the master node 300 (701). Additionally, the user node 100 issues a user data snapshot request to the blockchain network 400, and the master node 300 and/or the game server 200 receives the user data snapshot request from the blockchain network 400. An embodiment to do this is also possible.

Although not shown in FIG. 6, the user node 100 may request an access token from the game server 200 before issuing a user data snapshot request, and receive and hold the access token from the game server 200. In this case, the user node 100 may transmit a user data snapshot request and an access token to the master node 300.

In one embodiment of the present disclosure, the user node 100 may sign the user data snapshot request with its own private key and transmit it to the master node 300.

The master node 300 may verify the validity of the user data snapshot request (702). The master node 300 may check the validity of the user data snapshot request issued from the user node 100 with the public key of the user node 100. The master node 300 may verify the validity of the user data snapshot request using the public key of the user node 100 in order to check whether the user node has the authority to request user data.

The master node 300 may query the game server 200 to verify the validity of the user data snapshot request (703). The master node 300 may query the game server 200 for validity of the user data snapshot request by passing the access token included in the user data snapshot request to the game server 200.

The game server 200 may check the validity of the user data snapshot request based on the access token (704). The game server 200 may check the validity of the user data snapshot request by comparing the access token issued by the game server 200 with the access token received from the master node 300. The game server 200 may identify user data in the game data based on the access token.

The game server 200 may transmit user data to the master node 300 (705).

The master node 300 may generate a block to be distributed to the blockchain network 400 based at least in part on user data (706). The master node 300 may allow a block to be distributed to the blockchain network 400 to include user data. The master node 300 may allow a transaction including user data to be included in a block to be distributed to a blockchain network. In an embodiment of the present disclosure, the master node 300 may perform mining to generate a block, and the master node 300 may perform mining on its own or transmit the above-described transaction to the mining pool to be mined. You may.

The master node 300 may sign a transaction including user data to be included in the generated block with the master node's private key. The master node 300 may include a user public key indicating the owner of the user data in the block. The master node 300 may generate a block by including user data and a user public key in a transaction included in the block. In addition, the master node 300 may distribute the public key of the master node to verify the validity of the block.

The master node 300 may distribute the generated block on the blockchain network 400 (707).

The blockchain network 400 may propagate and record a block containing user data within the blockchain network (708). Accordingly, the blockchain network 400 may propagate and record a block including user data to a plurality of nodes. In an embodiment of the present disclosure, the blockchain network 400 may be a public blockchain network configured by one or more user nodes 100 and one or more master nodes 300.

7 shows an exemplary flow chart of a game data management scheme according to an embodiment of the present disclosure.

The flowchart illustrated in FIG. 7 exemplarily shows a method of storing game data and user data on a blockchain in which the user node 100 operates as an entity other than a node of the blockchain network 400.

Among the features of the content illustrated in FIG. 7, for features that overlap with the features described above with respect to FIGS. 4 to 6, the content described in FIGS. 4 to 6 will be referred to, and a description thereof will be omitted here.

As shown in FIG. 7, the user node 100 may transmit a user data snapshot request to the master node 300 (801 ).

Although not shown in FIG. 7, the user node 100 may request an access token from the game server 200 before transmitting the user data snapshot request, and receive and hold the access token from the game server 200. In this case, the user node 100 may transmit a user data snapshot request and an access token to the master node 300. In one embodiment of the present disclosure, an access token may be issued through payment for in-game goods.

The master node 300 may query the game server 200 to verify the validity of the user data snapshot request (802). The master node 300 may query the game server 200 for validity of the user data snapshot request by passing the access token included in the user data snapshot request to the game server 200.

The game server 200 may check the validity of the user data snapshot request based on the access token (804). The game server 200 may check the validity of the user data snapshot request by comparing the access token issued by the game server 200 with the access token received from the master node 300. The game server 200 may identify user data in the game data based on the access token.

The game server 200 may transmit user data to the master node 300 (804).

The master node 300 may generate a block to be distributed to the blockchain network 400 based at least in part on user data (805). The master node 300 may allow a block to be distributed to the blockchain network 400 to include user data. The master node 300 may allow a transaction including user data to be included in a block to be distributed to a blockchain network. In an embodiment of the present disclosure, the master node 300 may perform mining to generate a block, and the master node 300 may perform mining on its own or transmit the above-described transaction to the mining pool to be mined. You may.

The master node 300 may sign a transaction including user data to be included in the generated block with the master node's private key. The master node 300 may include user identification information (eg, ID, player name, access token, etc.) indicating the owner of the user data in the block. The master node 300 may generate a block by including user data and user identification information in a transaction included in the block. In addition, the master node 300 may distribute the public key of the master node to verify the validity of the block.

The master node 300 may distribute the generated block on the blockchain network 400 (806). At this time, the master node 300 may own the addresses of nodes of the blockchain network, or may transmit them to the game server 200 or a user node.

The blockchain network 400 may propagate and record a block containing user data within the blockchain network (708). Accordingly, the blockchain network 400 may propagate and record a block including user data to a plurality of nodes. In an embodiment of the present disclosure, the master node 300 may configure a game server 200 and a private blockchain network. In addition, in another embodiment of the present disclosure, the master node 300 may form a private blockchain network with other master nodes (eg, another publisher's computing device, another publisher's computing device, etc.).

The blockchain network 400 may transmit a block including the propagated and recorded user data to the user node 100 (808). When user data is required, the user node 100 may transmit a query to the blockchain network 400 to receive user data from the blockchain network 400.

8 shows an exemplary flow chart of a game data management scheme according to an embodiment of the present disclosure.

The flowchart shown in FIG. 8 is a game data in which a master node 300 constitutes a private blockchain network 400 with other master nodes and/or game servers, and a separate public blockchain network 401, An exemplary method of storing user data on a blockchain is shown. In an embodiment of the present disclosure, the second blockchain network 401 (public blockchain network) may be a blockchain network configured by the master node 300 and the user node 100. In addition, in another embodiment of the present disclosure, the second blockchain network 401 (public blockchain network) may be a blockchain network configured by one or more master nodes and/or game servers, and in this case, a user node Can obtain user data by querying the node of the second blockchain network.

For features that overlap with the features described above with respect to FIGS. 4 to 7 among the features of the content illustrated in FIG. 8, the content described in FIGS. 4 to 7 will be referred to, and a description thereof will be omitted here.

As illustrated in FIG. 8, the user node 100 may transmit a user data snapshot request to the master node 300 (901 ).

In one embodiment of the present disclosure, the user node 100 may sign the user data snapshot request with its own private key and transmit it to the master node 300.

The master node 300 may verify the validity of the user data snapshot request (902). The master node 300 may check the validity of the user data snapshot request issued from the user node 100 with the public key of the user node 100. The master node 300 may verify the validity of the user data snapshot request using the public key of the user node 100 in order to check whether the user node has the authority to request user data.

The master node 300 may query the game server 200 to verify the validity of the user data snapshot request (903). The master node 300 may query the game server 200 for validity of the user data snapshot request by passing the access token included in the user data snapshot request to the game server 200.

The game server 200 may check the validity of the user data snapshot request based on the access token (904). The game server 200 may check the validity of the user data snapshot request by comparing the access token issued by the game server 200 with the access token received from the master node 300. The game server 200 may identify user data in the game data based on the access token.

The game server 200 may transmit user data to the master node 300 (905).

The master node 300 may generate a block to be distributed to the blockchain network 400 based at least in part on the user data (906). The master node 300 may allow a block to be distributed to the blockchain network 400 to include user data. The master node 300 may allow a transaction including user data to be included in a block to be distributed to a blockchain network. In an embodiment of the present disclosure, the master node 300 may perform mining to generate a block, and the master node 300 may perform mining on its own or transmit the above-described transaction to the mining pool to be mined. You may. The master node 300 may include user identification information indicating the owner of the user data (eg, ID, player name, access token, etc.), and/or a user public key in the block. A block can be created by including user data and user identification information in the transaction included in. In addition, the master node 300 may distribute the public key of the master node to verify the validity of the block. In addition, the master node 300 may generate a block by signing a transaction including user data with its own private key.

The master node 300 may distribute the generated block on the first blockchain network 400 (907). At this time, the master node 300 may own the addresses of nodes of the blockchain network, or may transmit them to the game server 200 or a user node. In one embodiment of the present disclosure, the first blockchain network 400 may be a private blockchain network configured by the master node 300 and another master node and/or the game server 200.

The first blockchain network 400 may propagate and record a block including user data in the blockchain network (908). Accordingly, the blockchain network 400 may propagate and record a block including user data to a plurality of nodes. In an embodiment of the present disclosure, the master node 300 may configure the game server 200 and the first blockchain network 400, which is a private blockchain network. Also, in another embodiment of the present disclosure, the master node 300 includes another master node (e.g., another computing device of a publisher, a computing device of another publisher, etc.) and a first blockchain network ( 400).

The first blockchain network 400 may distribute the generated block to the second blockchain network 401, which is a public blockchain network, when the validity of the generated block is authenticated on the first blockchain network 400. In an embodiment of the present disclosure, the second blockchain network 401 (public blockchain network) may be a blockchain network configured by the master node 300 and the user node 100. In addition, in another embodiment of the present disclosure, the second blockchain network 401 (public blockchain network) may be a blockchain network configured by one or more master nodes and/or game servers, and in this case, a user node Can obtain user data by querying the node of the second blockchain network.

9 exemplarily shows a connection structure of blocks stored in the blockchain network 400 according to an embodiment of the present disclosure.

As shown in FIG. 9, the blocks 1400a, 1400b, and 1400c, which are storage units in the block chain network 400, may be connected to each other in a chain form to form a block chain.

The 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 network 400 changes to generate a block, and may 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.

As shown in Fig. 9, since the block hash value of block 301 (1400a) is used as an input value to obtain the block hash value of the block header of block 302 (1400b), block 302 (1400b) and block 301 (1400a) ) Can 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 the 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, an operation related to the transaction will be performed in the blockchain network 400. I can.

Here, A, B, C, D, E, and F may correspond to addresses in the blockchain network 400 such as externally owned accounts or wallet addresses. In addition, Contract 1 and 2 may refer to smart contracts stored in the contract account.

As shown in Fig. 9, the transaction in block 301 (1400a) is a transaction (Tx 1) for transferring 20 Coins from A to B, and a transaction for creating or calling smart contract 1 from C (Tx 2). It may include.

Further, the transaction at block 302 (1400b) may include a transaction (Tx 1) to transfer 5 Coins from B to A, and a transaction to create or call a smart contract 2 from D (Tx 2).

In addition, the transaction in block 303 (1400c) may include a transaction (Tx 1) for transferring 10 Coins from F to E and a transaction for creating or calling smart contract 1 from G (Tx 3).

As an additional embodiment, although not shown in FIG. 9, the block headers of the blocks 1400a, 1400b, and 1400c are: the hash value (ParentHash) of the parent block (previous block), the uncle block of the current block (the difficulty of the block is relatively The hash value (UncleHash) of blocks that were not adopted as blocks), the account address (Coinbase) that will receive the transaction fee after mining, the root node hash value (Root) of the Merkle Patricia tree where the account status information is collected, and the block's Merkletree root node hash value (TxHash) for all transactions, Merkletree root node hash value (ReceiptHash) for all transactions in the block, and 32-byte bloom filter information (Bloom) used to use log information , The total of the block difficulty (Difficulty) calculated by the difficulty of the previous block and the timestamp, the current block number (Number), the maximum payable gas per block (the concept of the cost (token) used to process the transaction/smart contract) ( GasLimit), the total number of gases used in transactions within the block (GasUsed), the initial generation time of the block (Time), other information of the block (Extra) and/or to ensure the number of calculations sufficient to calculate the hash value from the proof of work. It can also include values to be used (MixDigest, Nonce).

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

The computer 1102 illustrated in FIG. 10 may correspond to at least one of a user node 100, a game server 200, a master node 300, and a computing device constituting the blockchain network 400.

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. I will know.

In general, modules herein include routines, procedures, programs, components, data structures, etc. that perform particular tasks or implement particular abstract data types. In addition, 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, etc. (each of which is It will be appreciated that other computer system configurations may be implemented, including one that may operate in connection with 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. A computer-accessible medium includes volatile and nonvolatile media, transitory and non-transitory media, and removable and non-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, temporary 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 so as 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.

The computer 1102 also includes an internal hard disk drive (HDD) 1114 (e.g., EIDE, SATA)-this internal hard disk drive 1114 can also be configured for external use within a suitable chassis (not shown). Yes--, magnetic floppy disk drive (FDD) 1116 (for example, to read from or write to removable diskette 1118), and optical disk drive 1120 (e.g., CD-ROM For reading the disk 1122 or for reading from or writing to other high-capacity optical media such as DVD). 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, and the like. 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 several 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, and the like.

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 referred to as computer 1102. 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 enterprise-wide computer networks such as intranets, all of which can be connected to worldwide computer networks, 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 other 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 computer 1102 or portions thereof may be stored in 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 a phone. This includes at least Wi-Fi and Bluetooth wireless technologies. Accordingly, 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 or the like 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, that is, 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 a data rate of 11 Mbps (802.11a) or 54 Mbps (802.11b), 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 specific 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, EEPROM, cards, sticks, key drives, etc.). 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 this 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.

A 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 to be limited to the embodiments presented herein, but is to be construed in the widest scope consistent with the principles and novel features presented herein.

Claims (20)

A computer program stored in a computer-readable storage medium, the computer program performing the following operations for authenticating user data when executed by one or more processors of one or more master nodes, the operations:
Receiving a user data snapshot request issued from a user node;
Transmitting the access token included in the user data snapshot request to a game server to obtain user data based on the access token from the game server; And
Generating a block to be distributed to a blockchain network based at least in part on the user data obtained from the game server;
Including,
The access token,
Generated by the game server through payment of in-game goods by the user node, includes information for identifying the user data, is calculated as an execution cost for the user data snapshot request, and access to the user data Processed in the authorization process,
The user data,
When at least one of the first condition for achieving a specific achievement in a predetermined specific game, the second condition for a specific operation state of the game server, and the third condition for a specific situation on the game service is satisfied, the game server Acquired,
A computer program stored on a computer readable storage medium.
A computer program stored in a computer-readable storage medium, wherein the computer program performs the following operations for authenticating user data when executed by one or more processors of a game server, the operations:
Receiving a user data snapshot request issued from a user node;
Obtaining user data based on an access token included in the user data snapshot request; And
Generating a block to be distributed to a blockchain network based at least in part on the user data;
Including,
The access token,
Generated by the game server through payment of in-game goods by the user node, includes information for identifying the user data, is calculated as an execution cost for the user data snapshot request, and access to the user data Processed in the authorization process,
The user data,
Acquired when at least one of a first condition for achieving a specific achievement in a predetermined specific game, a second condition for a specific operation state of the game server, and a third condition for a specific situation on the game service is satisfied,
A computer program stored on a computer readable storage medium.
The method according to claim 1 or 2,
The user data,
Configured based on the record of the game played by the user on the game server
A computer program stored on a computer readable storage medium.
The method according to claim 1 or 2,
The user data snapshot request issued from the user node is a transaction signed with the private key of the user node,
A computer program stored on a computer readable storage medium.
The method according to claim 1 or 2,
Checking whether a user data snapshot request issued from the user node is valid with the public key of the user node;
Further comprising,
A computer program stored on a computer readable storage medium.
delete delete The method of claim 1,
Requesting the user data from the game server when a predetermined condition is satisfied;
Further comprising,
A computer program stored on a computer readable storage medium.
The method of claim 1,
Acquiring user data from a game server based on the user data snapshot request,
Querying the game server whether the user data snapshot request is valid; And
Receiving the user data based on a determination result of whether the user data snapshot request is valid from the game server;
A computer program stored on a computer readable storage medium.
The method of claim 1,
The one or more master nodes constitute a private blockchain network,
A computer program stored on a computer readable storage medium.
The method of claim 1,
The one or more master nodes and the user nodes constitute a public blockchain network,
A computer program stored on a computer readable storage medium.
The method of claim 1,
Generating a block to be distributed to a blockchain network based at least in part on the user data obtained from the game server,
Signing a transaction including the user data with a private key of the master node;
Including
A computer program stored on a computer readable storage medium.
The method according to claim 1 or 2,
Generating a block to be distributed to a blockchain network based at least in part on the user data,
Performing mining to generate a block to be distributed to the blockchain network by integrating the user data snapshot request and the user data into one transaction;
Containing,
A computer program stored on a computer readable storage medium.
The method according to claim 1 or 2,
Generating a block to be distributed to a blockchain network based at least in part on the user data,
Including in the block a user public key representing the owner of the user data;
Containing,
A computer program stored on a computer readable storage medium.
The method of claim 1,
Generating a block to be distributed to a blockchain network based at least in part on the user data received from the game server,
Generating a block to be distributed to the blockchain network when the user data received from the game server satisfies a predetermined condition;
Containing,
A computer program stored on a computer readable storage medium.
The method of claim 1,
Distributing the public key of the master node so that the user node can verify the validity of the block;
Further comprising,
A computer program stored on a computer readable storage medium.
The method of claim 2,
Distributing the public key of the game server so that the user node can verify the validity of the block;
Further comprising,
A computer program stored on a computer readable storage medium.
The method of claim 1,
Blocks to be distributed to the blockchain network are distributed to other master nodes, and distributed to the user nodes when validity is authenticated by other master nodes,
A computer program stored on a computer readable storage medium.
As a master node that composes a blockchain network,
Transmitting/receiving unit receiving a user data snapshot request from a user node, receiving user data from a game server, and distributing a block to a blockchain network; And
Determining to obtain game data based on the access token from the game server by passing the access token included in the user data snapshot request to a game server, and distributing it to a blockchain network based at least in part on the user data A processor that generates a block to be processed;
Including,
The access token,
Generated by the game server through payment of in-game goods by the user node, includes information for identifying the user data, is calculated as an execution cost for the user data snapshot request, and access to the user data Processed in the authorization process,
The user data,
When at least one of the first condition for achieving a specific achievement in a predetermined specific game, the second condition for a specific operation state of the game server, and the third condition for a specific situation on the game service is satisfied, the game server Which is obtained,
The master node that makes up the blockchain network.
As a game server,
Transmitting and receiving unit for receiving a user data snapshot request from the user node, and distributing the block to the blockchain network; And
A processor for determining to acquire game data of the user based on an access token included in the user data snapshot request, and generating a block to be distributed to a blockchain network based at least in part on the user data;
Including,
The access token,
Generated by the game server through payment of in-game goods by the user node, includes information for identifying the user data, is calculated as an execution cost for the user data snapshot request, and access to the user data Processed in the authorization process,
The user data,
It is obtained when at least one of the first condition for achieving a specific achievement in a predetermined specific game, the second condition for a specific operation state of the game server, and the third condition for a specific situation on the game service is satisfied. ,
Game server.

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