WO2019093705A1 - Game service providing method and device - Google Patents

Abstract

A game service providing method and device is disclosed. The game service providing method comprises the steps of: when a recovery request for game play information of a game previously played through guest login access is received through a user input, decoding encryption information stored in a memory; transmitting the decoded encryption information to a server; and in response to the transmission, receiving a game service provided by the server, on the basis of the game play information recovered by the server.

Description

Method and apparatus for providing game service

The following description relates to game service provisioning technology.

The guest login of the mobile game service is a login method in which a game can be played through a temporary game ID without a separate account connection. Since there is no account linkage for storing game play information of the guest login user, the game play through the guest login may be deleted together with the game play information previously performed when the game application is deleted. Accordingly, when the game application is reinstalled, it is not possible to restore the previously played game play information, and the user is inconvenienced to start the game again from the beginning. Therefore, a technical means for solving such a problem is required.

According to an embodiment, there is provided a method of generating encryption information for restoring game play information for a guest user, the method comprising: requesting a server to generate a recovery key when a user accesses a game service as a guest login; Receiving the recovery key from the server in response to the request; Generating encryption information for game play information of a user accessed by the guest login based on the received recovery key; And storing the encryption information in a memory.

The step of generating the encryption information may generate the encryption information based on an encryption key that can be decrypted only through the user terminal from which the encryption information is generated, and the encryption key may include the identification information of the user terminal .

Wherein the recovery key is generated and updated by the server, the encryption information is updated based on the updated recovery key, the encryption information is stored in the memory separately from the file associated with the application for the game service, Even if the application for the game service is deleted from the memory.

The encryption information may further include at least one of the game service access point information of the user and the temporary game ID information of the user.

The recovery key may be updated each time the user accesses the game service as a guest login.

The method of providing a game service provided based on recovered game play information for a guest login user according to an embodiment includes the steps of, when receiving a request for restoration of previous game play information performed through a guest login connection through user input, Decrypting the encrypted information stored in the memory; Transmitting the decrypted encryption information to a server; And receiving the game service through the server based on the game play information restored by the server, in response to the transmission.

Wherein the encryption information includes a recovery key that is updated through the server and is updated based on the updated recovery key and is stored in the memory separately from a file related to the application for the game service, Even if the application for the game service is deleted, it can be maintained in the memory.

The receiving of the game service may receive the game service based on the restored game play information based on the decrypted encryption information.

In one embodiment, a method for providing a game service may further include receiving a user input regarding a recovery point.

The step of transmitting to the server may transmit the decrypted encryption information and the user input information regarding the recovery point.

The receiving of the game service may receive the game service based on the decrypted encryption information and the game play information restored based on the recovery point.

A user terminal according to an exemplary embodiment includes: a communication unit that receives a recovery key from a server; A processor for generating encryption information for game play information of a user who has accessed the game service as a guest login based on the received recovery key; And a memory for storing the generated encryption information.

Wherein the recovery key is generated and updated from the server, the encryption information is updated based on the updated recovery key, the encryption information is stored in the memory separately from the file related to the application for the game service, Even if the application for the game service is deleted from the memory.

The processor may decrypt the encrypted information stored in the memory upon receipt of a request for restoration of previous game play information performed based on a guest login connection, via a user input.

The communication unit may transmit the decrypted encryption information and user input information regarding the recovery point to the server.

The recovery point may be selected from any one of the time points at which the user accesses the game service through the guest login.

The processor may process information on the game service provided from the server based on the game play information corresponding to the recovery point.

1 is a flowchart illustrating a method of generating encryption information for restoring game play information of a guest login user according to an exemplary embodiment of the present invention.

2 is a flowchart illustrating a method of providing a game service based on restored game play information according to an embodiment.

3 is a diagram illustrating a configuration of a game play information recovery system according to an embodiment.

FIG. 4A is a diagram illustrating a process of generating and storing encryption information for restoring game play information of a guest login user according to an exemplary embodiment. Referring to FIG.

4B is a diagram illustrating a process of restoring game play information of a guest login user according to an embodiment and providing a game service based on the restored game play information.

Structural or functional descriptions of embodiments are set forth for illustrative purposes only, and may be embodied with various changes and modifications. Accordingly, the scope of this disclosure is not intended to be limited to the specific forms of the disclosed embodiments, but includes variations, equivalents, or alternatives included in the described technical concepts.

The terms first or second, etc. may be used to describe various elements, but such terms should be interpreted solely for the purpose of distinguishing one element from another. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected or connected to the other element, although other elements may be present in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms " comprises ", or " having ", and the like, are used to specify one or more of the described features, integers, steps, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

On the other hand, if an embodiment is otherwise feasible, the function or operation specified in a particular block may be performed differently from the flowchart. For example, two consecutive blocks may actually be executed at substantially the same time, and the blocks may be rearranged depending on the related function or operation.

According to the present invention, the game play information restoration system for the guest login user can restore the previously played game play history even if the game service application is deleted from the user terminal. The game play information recovery system stores a recovery key used to recover game play information of a user accessing the game service through a guest login in a storage of the user terminal, and when the game service application is deleted later The recovery key can be used to restore the previous game play information of the guest login user. Through the game play information restoration system, even if the game service application is re-installed in the user terminal and the user re-accesses the game service through the guest login, the user can be provided with the game service following the previously played game play.

The term " guest login " may refer to accessing the game service through the temporary game ID information without the user through the registered game account, and the guest login user may access the game May refer to a user who has accessed the service. The temporary game ID information is for storing the game play information by distinguishing the user from the game service server. The temporary game ID information may be generated when the game service application is installed in the user terminal and the user accesses the game service through the guest login for the first time. Through the created temporary game ID information, the guest login user can receive the game service following the previous game play in the game service connection through the guest login performed after the first guest login. For example, when the guest login user performs game play until the level of the game character reaches a certain level in the game play conducted through the guest login, when the guest login user reconnects to the game service through the guest login, The log-in user can be provided with the game service based on the game play information up to the game character having the specific level.

Since the temporary game ID information can be deleted together with the game service application when the game service application is deleted from the user terminal, when the game service application is reinstalled on the user terminal, the previous game play information of the guest login user is not restored There is a possibility.

The game play information restoration system according to an exemplary embodiment may restore the previous game play information of the guest login user even if the game application is installed again through the recovery key stored in the user terminal regardless of whether the game service application is deleted or not The recovery key may be encrypted by encrypting the recovery key for restoring the game play information of the guest login user or by continuously renewing the recovery key to prevent leakage of the recovery key, It is possible to prevent the situation where the user is restored.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and a duplicate description thereof will be omitted.

1 is a flowchart illustrating a method of generating encryption information for restoring game play information of a guest login user according to an exemplary embodiment of the present invention.

Referring to FIG. 1, in step 110, a user terminal may request a server to generate a recovery key when a user accesses a game service through a guest login. The recovery key is a key randomly issued by the server in response to game play information on game play performed through the guest login, and may be any combination of a numeric string, a string, or a character string and a numeric string. The format of the recovery key is not limited to the example shown. According to one embodiment, each time the guest login user connects to the gaming service via guest login, the recovery key can be updated via the server. Through the updated recovery key, the security of the guest login information of the guest login user can be maintained even if the previously generated recovery key is leaked.

In step 130, the user terminal receives the recovery key from the server in response to the request of step 110, and based on the recovery key received from the server, encrypts the encryption information for the game play information of the user who accessed the guest login Can be generated. The encryption information may be generated by encrypting the recovery key received from the server. According to one embodiment, the encryption information may be generated based on an encryption key that can only be decrypted through the user terminal from which the encryption information is generated. For example, the encryption key may include identification information of the user terminal that is a unique value for the user terminal. For example, the encryption key may include an advertising ID (ADID) or a device ID.

According to one embodiment, the encryption information may include at least one of a guest login user's game service access point information and a guest login user's user terminal's temporary game ID information. The connection point in time information may include time information of the guest login user accessing the game service and may be used to determine the recovery point of the game play information.

According to one embodiment, whenever a user accesses a game service through a guest login, the recovery key can be updated via the server, and the encryption information can be updated based on the updated recovery key.

In step 150, the user terminal may store the generated encryption information in a memory. For example, the encryption information may be stored in the memory even if the game service application is deleted by being stored separately from the game service application files in the common memory of the user terminal, the SD card, and the like. When the game service application is reinstalled on the user terminal, the previous game play information of the guest login user can be restored based on the encryption information held in the memory regardless of whether the game service application is deleted or not. According to one embodiment, a user terminal may store an encrypted file containing encryption information in a memory, and the encrypted file may be newly created each time a game service application is installed, and a file of a newly generated encrypted file The name may have a filename that is different from the filename of a previously encrypted file that has already been created and stored.

2 is a flowchart illustrating a method of providing a game service based on restored game play information according to an embodiment.

The user terminal can receive the game service in response to the previously played game play through the game play information stored in the game service server in response to the generated temporary game ID information. However, if the game service application is reinstalled after the game service application is deleted from the user terminal, the temporary game ID information is also deleted together with the temporary game ID information, Information can not be provided. When the game service application is reinstalled, the user terminal can recover the previous game play information through the recovery key, and receive the game service based on the restored game play information.

Referring to FIG. 2, in operation 210, when a user terminal receives a recovery request for previous game play information performed through a guest login connection through a user input, the user terminal may decrypt the encryption information stored in the memory. For example, if the previous guest login history of the guest login user exists, the user terminal may restore the previous game play information to the guest login user who has accessed the game service through the current guest login, and based on the recovered game play information , An interface may be provided to determine whether to proceed with game play following the previous game play or whether to proceed with the new game play without restoring the game play information. The user terminal can recover the previous game play information through user input of the guest login user and decrypt the encrypted information stored in the memory when it is determined to proceed with the game play based on the restored game play information. According to one embodiment, when a guest login user deletes and reinstalls a game service application multiple times, a plurality of pieces of encryption information generated through re-installation of each game service application and a game service connection through guest login are stored in the memory Lt; / RTI > If it is determined to proceed with game play based on the restored game play information through user input of the guest login user, the user terminal can decrypt all of the plurality of pieces of encrypted information stored in the memory. Further, since the encryption information is encrypted based on the encryption key including the identification information of the user terminal, decryption of the encryption information can be performed only through the user terminal that has performed the encryption.

In step 230, the user terminal may send decrypted encryption information to the server.

In step 250, in response to the transmission of step 230, the user terminal may be provided with the game service through the server based on the game play information restored by the server. Game play information can be restored through the server based on the recovery key included in the decrypted encryption information, the game service access point information, and the temporary game ID information. Game play information at the guest login time stored in the server is determined corresponding to the recovery key, service connection point-in-time information, and temporary game ID information, so that the game play information can be restored. Based on the restored game play information, The game service can be provided from the game server.

According to one embodiment, the user terminal can receive the game service based on the game play information corresponding to the predetermined time point restored based on the decrypted encryption information. For example, the predetermined point in time may be the point in time of accessing the game service through the last guest login of the guest login user. In addition, if it is determined that the game play is to be performed based on the game play information recovered through the user input of the guest login user, the user terminal may return the restored game including the game play information advanced at the last guest log- The game service can be provided from the server based on the play information.

According to another embodiment, the user terminal may further comprise receiving a user input relating to a recovery point, transmitting the encrypted information decrypted in step 230 and user input information for the recovery point to the server, In step 250, the game service may be provided from the server based on the restored game play information based on the encryption information and the user input information on the recovery point. The recovery point, which can be selected by the guest login user, can be determined to be at least one of the points at which the guest login user accessed the game service via the guest login. In addition, the recovery point can be determined to be any point in the game play progressed according to the setting. For example, if the guest login user determines a specific point in the game play through the second guest login of the five guest logins as the recovery point, the user terminal transmits the game play performed through the second guest login through the decrypted encryption information The game service can be provided from the server based on the restored game play information based on the game play information at a specific point in time. When the user terminal does not receive the user input regarding the recovery point, the user terminal can receive the game service based on the game play information corresponding to the restored predetermined point of time based on the decrypted encryption information. For example, the predetermined time may include the last guest login time.

According to one embodiment, the point of recovery that can be selected by the user may be limited according to the game service operating policy. For example, if a drawing game play that can be performed through purchasing a paid drawing item is performed on a game service, a point in time before a game play is drawn can not be selected as a recovery point for recovering game play information thereafter. This is to prevent abuse of the recovery function of the user who acquired the unwanted item through the drawing game play. The illustrated example is for illustrating one embodiment, and the limitation of the recovery point selection according to the game service operation policy is not limited to the example shown.

3 is a diagram illustrating a configuration of a game play information recovery system according to an embodiment.

Referring to FIG. 3, the game play information recovery system generates a recovery key for restoring game play information, restores game play information, and provides a game service to the user terminal 310 based on the restored game play information Generates encryption information for the game play information based on the recovery key received from the server 330 and the server 330, and provides the game service from the server 330 based on the restored game play information based on the encryption information And a receiving user terminal 310.

According to one embodiment, the user terminal 310 includes a communication unit including a receiver 311 for receiving a recovery key from the server and a transmitter 313 for transmitting the decrypted encryption information to the server 330, A processor 315 for generating encryption information and processing information on the game service provided from the server 330, and a memory 317 for storing the encryption information generated through the processor 315. [

The user terminal 310 and the server 330 may be provided with a method of generating encryption information for restoring game play information described in FIGS. 1 and 2 and a method of providing a game service provided based on the restored game play information Can be performed.

According to one embodiment, the processor 315 may send a recovery key generation request to the server 330 via the transmitter 313 if the guest login user has accessed the game service via the guest login. The recovery key can be updated each time the guest login user accesses the game service through the guest login, and the encryption information can be updated based on the updated recovery key.

If the receiver 311 receives the recovery key from the server 330 in response to the recovery key generation request, the processor 315 may generate encryption information for the guest login user's game play information based on the recovery key . The processor 315 may generate the encryption information based on the encryption key that can only be decrypted through the user terminal 310. [ The encryption key may include identification information of the user terminal 310 unique to the user terminal 310. For example, the encryption key may be an ADID or a device ID assigned to the user terminal 310. [

According to one embodiment, the encryption information may include at least one of a game login time information of a guest login user used to determine a recovery point in the recovery process of the game play information, and a temporary game ID information of the user terminal .

The processor 315 may store the generated encryption information in the memory 317. [ The memory 317 may include a shared memory, an SD card, or the like. The encryption information stored in the memory 317 may be retained in the memory 317 even if the application for the game service is deleted from the memory 317. [

According to one embodiment, the processor 315 decrypts the encrypted information stored in the memory 317 when receiving a request for restoration of previous game play information performed based on guest login access via user input of the guest login user .

The processor 315 transmits the encrypted information decrypted via the transmitter 313 and the user input information regarding the recovery point to the server 330 and transmits the encrypted information to the server 330 via the server 330 based on the restored game play information in response to the transmission And can process information on the provided game service. For example, the recovery point may be selected at a point in time when the user accesses the game service through the guest login, and the processor 315 may select the recovery point based on the game play information corresponding to the selected recovery point The information on the game service provided by the game server 330 may be processed. If the user input information regarding the recovery time point is not input, the processor 315 determines, based on the decrypted encryption information, whether or not the server (315) The information on the game service provided by the game server 330 may be processed.

FIG. 4A is a diagram illustrating a process of generating and storing encryption information for restoring game play information of a guest login user according to an exemplary embodiment. Referring to FIG.

4A, in step 411, a guest login user on a game service application executed through a user terminal 410 accesses the game service through a guest login, May request a recovery key generation. The recovery key is a random key issued by the server 420 corresponding to the game play information generated for the game play performed through the guest login, and may be any combination of a numeric string, a string or a numerical string and a string, The format of the recovery key is not limited to this.

In step 421, in response to the recovery key creation request, the server 420 may generate a recovery key, store the generated recovery key in a database, and send the generated recovery key to the user terminal 410 . At step 412, the user terminal 410 may generate encryption information for the game play information based on the received recovery key. The encryption information can be generated by encrypting the received recovery key. The encryption information may be encrypted with an encryption key that includes identification information of the user terminal that is unique to the user terminal 410. [ In addition, the encryption information may include temporary game ID information, game service access point-of-time information of the guest login user, as well as the recovery key. The provisional game ID information is a temporarily issued game ID so that the guest login user can proceed to play the game, and the server 420 can be used to store the game play information by distinguishing the user. The game service access point information may include time information of accessing the server through the guest login and may be used to determine the game play recovery point when the game play information is later restored.

At step 413, the user terminal 410 may store an encrypted file containing encryption information in memory. The encrypted file can be created with different file names each time reinstallation of the game service application is performed. In addition, the encrypted file is stored in the memory separately from the game service application files, so that the encrypted file can be retained in the memory even if the game service application is deleted. The previous game play information of the guest login user can be restored regardless of whether or not the game service application is deleted based on the encrypted file held in the memory and based on the restored game play information, The game service may be provided from the server 420 following the guest login user's game play.

Also, whenever the guest login user accesses the game service through the guest login, the recovery key is newly generated through the server 420 and stored in the database, and the generated recovery key can be transmitted to the user terminal 410. [ The user terminal 410 can update the existing encryption information by changing the recovery key included in the encryption information through the newly generated recovery key.

4B is a diagram illustrating a process of restoring game play information of a guest login user according to an embodiment and providing a game service based on the restored game play information.

Referring to FIG. 4B, in step 414, if the guest login user on the game service application executed via the user terminal 410 has accessed the game service via the guest login, the user terminal 410 may, via user input Based on the restored game play information, an interface for determining whether or not to receive the game service following the previous game play can be displayed.

If it is determined to receive the game service based on the restored game play information through the user input of the guest login user, the user terminal 410 may decrypt the encrypted information in step 415. [ At step 415, the user terminal 410 may decrypt all encryption information stored in the memory. The encrypted information can be decrypted only through the user terminal 410 because the encrypted information is encrypted with the encryption key including the identification information of the user terminal 410. [

According to the setting of the game service, the recovery point is selected based on the user input, and the step 416 of requesting the provision of the game service based on the game play information for the selected recovery point may be included in the game service providing process. At step 416, a recovery point may be selected via user input of the guest login user, and it may be determined whether to request the server 420 to provide the game service based on the game play information for the selected recovery point.

Depending on the setting of the game service, step 416 may be omitted, in which case the game service may be provided to the user terminal 410 based on the game play information for a predetermined recovery point. The predetermined recovery time may include, but is not limited to, the latest guest login time.

At step 417, the user terminal 410 may send the decrypted encryption information to the server 420. [ If the step 416 is included in the game service provision process, the user terminal 410 may transmit the decrypted encryption information and information on the selected recovery point to the server 420.

At step 422, the server 420 may recover the game play information based on the decrypted encryption information, and may provide the game service to the user terminal 410 based on the recovered game play information. The server 420 can determine the game play information stored in the server 420 in response to the recovery key, the game service accessing time information, and the temporary game ID information included in the decrypted encryption information, thereby restoring the game play information. If the game service providing process includes the step 416, the game play information at the selected recovery point in step 416 may be restored, and if the step 416 is not included, Can be restored. The server 420 may provide the game service to the user terminal 410 by transmitting the restored game play information to the user terminal 410. [

The components described in the embodiments may be implemented by one or more programmable logic devices such as a digital signal processor (DSP), a processor, a controller, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), other electronic devices, Or a combination of hardware and software. At least some of the processes or functions described in the embodiments may be implemented by software, and the software may be recorded on a recording medium. The components, functions and processes described in the embodiments may be implemented by a combination of hardware and software.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer readable medium may include program instructions, data files, data structures, and the like, alone or in combination. Program instructions to be recorded on a computer-readable medium may be those specially designed and constructed for an embodiment or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

Although the embodiments have been described with reference to the drawings, various technical modifications and variations may be applied to those skilled in the art. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Claims (20)

A method of generating encryption information for restoring game play information for a guest user, Requesting a server to generate a recovery key when the user accesses the game service with a guest login; Receiving the recovery key from the server in response to the request; Generating encryption information for game play information of a user accessed by the guest login based on the received recovery key; And Storing the encryption information in a memory And generating the encrypted information. The method according to claim 1, Wherein the step of generating the encryption information comprises: Generating the encryption information based on an encryption key that can be decrypted only through the user terminal from which the encryption information is generated, Wherein the encryption key comprises: And identification information of the user terminal. The method according to claim 1, Wherein the recovery key comprises: Updated by the server, The encryption information includes, Based on the updated recovery key, The encryption information includes, The program being stored in the memory separately from a file associated with the application for the game service, Even if an application for the game service is deleted from the memory, the encryption information is retained in the memory. The method according to claim 1, The encryption information includes, The game service access point information of the user, and the temporary game ID information of the user. The method according to claim 1, Wherein the recovery key comprises: And is updated each time the user accesses the game service as a guest login. A method of providing a game service provided based on recovered game play information for a guest (Login) user, Decrypting the encrypted information stored in the memory, when receiving the request for restoration of the previous game play information performed through the guest login connection through the user input; Transmitting the decrypted encryption information to a server; And Receiving, in response to the transmission, a game service through the server based on game play information restored by the server And providing the game service. The method according to claim 6, The encryption information includes, And a recovery key that is updated through the server, Based on the updated recovery key, Wherein the game service is maintained in the memory even if an application for the game service is deleted from the memory in a manner different from a file related to the application for the game service. The method according to claim 6, Wherein the receiving the game service comprises: And a game service is provided based on game play information at a predetermined time point restored based on the decrypted encryption information. The method according to claim 6, Receiving user input regarding the recovery point Further comprising: Wherein the transmitting to the server comprises: And transmitting the decrypted encryption information and user input information regarding the recovery point, Wherein the receiving the game service comprises: And the game service is provided based on the decrypted encryption information and the game play information restored based on the recovery point. 10. The method of claim 9, The recovery point may be, Wherein a time point at which the user accesses the game service through a guest login is selected. A communication unit for receiving a recovery key from a server; A processor for generating encryption information for game play information of a user who has accessed the game service as a guest login based on the received recovery key; And A memory for storing the generated encryption information, And a user terminal. 12. The method of claim 11, Wherein the recovery key comprises: And is generated and updated from the server, The encryption information includes, Based on the updated recovery key, The encryption information includes, The program being stored in the memory separately from a file associated with the application for the game service, Wherein the application is maintained in the memory even if the application for the game service is deleted from the memory. 12. The method of claim 11, The processor comprising: And generates the encryption information based on an encryption key that can only be decrypted through the user terminal. 14. The method of claim 13, Wherein the encryption key comprises: The identification information of the user terminal. 12. The method of claim 11, The encryption information includes, Further comprising at least one of the game service access point information of the user and the temporary game ID information of the user terminal. 12. The method of claim 11, Wherein the recovery key comprises: And is updated each time the user accesses the game service as a guest login. 12. The method of claim 11, The processor comprising: Decrypting the encrypted information stored in the memory when a request for restoration of previous game play information based on a guest login connection is received via a user input, Wherein, And transmits the decrypted encrypted information and user input information regarding the recovery point to the server. 18. The method of claim 17, The processor comprising: And in response to the transfer, processes information about a game service provided through the server based on the restored game play information. 18. The method of claim 17, The recovery point may be, Any one of the time points at which the user accesses the game service through the guest login is selected, The processor comprising: And processing information on the game service provided from the server based on the game play information corresponding to the recovery point. 18. The method of claim 17, If the user input information regarding the recovery point is not input, The processor comprising: And processing information on a game service provided from the server based on game play information corresponding to a predetermined time point restored based on the decrypted encryption information.

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