5G-based cloud-based trusted data processing method, device, terminal and storage medium

Abstract

The present invention is applicable to the field of computer communication technology and provides a 5G-based cloud-based trusted data communication method, device, 5G mobile communication terminal and storage medium. The method includes: receiving a user's data operation request through a graphical user interface of a virtual mobile terminal output by a terminal TEE module in the 5G mobile communication terminal, sending the data operation request to a cloud server so that the server TEE module operates according to the data operation request and returns an operation result video stream to the 5G mobile communication terminal, receiving the operation result video stream returned by the cloud server, and outputting the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module, thereby providing a trusted data processing method for the 5G mobile communication terminal, improving the data security when the 5G mobile communication terminal accesses sensitive data, and reducing the hardware requirements for data trusted operations based on the 5G mobile communication terminal.

Description

Technical Field

[0001] The present invention belongs to the field of computer communication technology, and in particular relates to a 5G-based cloud-based trusted data processing method, device, terminal and storage medium. Background Art

[0002] While 5G phones can currently meet daily needs, people still have significant concerns about accessing confidential data through their phones. Therefore, in highly confidential fields, such as public security and the military, workers often choose to use a dedicated phone for work. However, having a dedicated phone for accessing confidential data increases user costs and also creates inconvenience.

[0003] With the expansion of open network environments, mobile phone security issues are receiving increasing attention. Not only mobile phone users, but also network service providers, mobile operators, chip manufacturers, etc. have higher expectations for the secure storage of 5G mobile phone data. However, as of now, even trusted authentication solutions based on the Trusted Execution Environment (TEE) are limited by the terminal's CPU processing performance. The computing power allocated to the TEE by existing hardware is insufficient to support the normal operation of existing security applications (Applications, abbreviated as APPs), resulting in the inability to support the simultaneous installation and use of a large number of existing confidential applications. Summary of the Invention

[0004] The purpose of the present invention is to provide a 5G-based cloud-based trusted data processing method, device, terminal and storage medium, aiming to solve the problem of low data security of mobile terminals due to the inability of existing 5G mobile communication terminals to provide a safe and effective trusted data processing method.

[0005] In one aspect, the present invention provides a 5G-based cloud-based trusted data processing method, the method comprising the following steps:

[0006] Receive a user's data operation request through a graphical user interface of a virtual mobile terminal output by a terminal TEE module in a 5G mobile communication terminal, wherein the virtual mobile terminal is located in a server TEE module of a cloud server;

[0007] Sending the data operation request to the cloud server, so that the server TEE module performs an operation according to the data operation request and returns an operation result video stream to the 5G mobile communication terminal;

[0008] Receive the operation result video stream returned by the cloud server, and output the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module.

[0009] In another aspect, the present invention provides a 5G-based cloud-based trusted data processing device, comprising:

[0010] a request receiving unit, configured to receive a user's data operation request through a graphical user interface of a virtual mobile terminal output by a terminal TEE module in a 5G mobile communication terminal, wherein the virtual mobile terminal is located in a server TEE module of a cloud server;

[0011] a request sending unit, configured to send the data operation request to the cloud server, so that the server TEE module performs an operation according to the data operation request and returns an operation result video stream to the 5G mobile communication terminal; and

[0012] A result output unit is used to receive the operation result video stream returned by the cloud server, and output the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module.

[0013] On the other hand, the present invention also provides a 5G mobile communication terminal, comprising a memory, a processor, and a computer program stored in the memory and runnable on the processor, wherein the processor implements the steps of the above-described method when executing the computer program.

[0014] On the other hand, the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above method are implemented.

[0015] The present invention receives a user's data operation request through the graphical user interface of a virtual mobile terminal output by the terminal TEE module in the 5G mobile communication terminal, sends the data operation request to the cloud server, so that the server TEE module operates according to the data operation request, and returns an operation result video stream to the 5G mobile communication terminal, receives the operation result video stream returned by the cloud server, and outputs the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module, thereby providing a data processing method for trusted data for the 5G mobile communication terminal, improving the data security when the 5G mobile communication terminal accesses sensitive data, and reducing the hardware requirements for data trusted operations based on the 5G mobile communication terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a flowchart of the implementation of the 5G-based cloud-based trusted data processing method provided in the first embodiment of the present invention;

[0017] Figure 2 This is a flowchart of the implementation of the 5G-based cloud-based trusted data processing method provided in the second embodiment of the present invention;

[0018] Figure 3 This is a structural diagram of a 5G-based cloud-based trusted data processing device provided in Example 3 of the present invention;

[0019] Figure 4 is a structural diagram of a 5G-based cloud-based trusted data processing device provided in the fourth embodiment of the present invention; and

[0020] Figure 5 It is a structural diagram of a 5G mobile communication terminal provided in Example 5 of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] The following describes the specific implementation of the present invention in detail with reference to specific embodiments:

[0023] Example 1:

[0024] Figure 1 The implementation process of the 5G-based cloud-based trusted data processing method provided in the first embodiment of the present invention is shown. For ease of explanation, only the part related to the embodiment of the present invention is shown, which is detailed as follows:

[0025] In step S101, a user's data operation request is received through the graphical user interface of the virtual mobile terminal output by the terminal TEE module in the 5G mobile communication terminal.

[0026] Embodiments of the present invention are applicable to 5G mobile communication terminals, which may be mobile phones, tablets, or the like equipped with 5G communication capabilities. The 5G mobile communication terminal is provided with a TEE module for communicating with a cloud server to access sensitive data on the cloud server, for example, to perform trusted data operations. For ease of description, the TEE module on the 5G mobile communication terminal is referred to herein as a terminal TEE module. The cloud server stores sensitive data, such as bank account information and user biometric information. The cloud server provides sensitive data access services to 5G mobile communication terminal users via a virtual mobile terminal provided by the TEE module. For ease of description, the TEE module on the cloud server is referred to herein as a server TEE module, meaning that the virtual mobile terminal is located within the server TEE module of the cloud server. Thus, the 5G mobile communication terminal can operate the virtual mobile terminal of the cloud server via a virtual mobile terminal graphical user interface transmitted from the cloud server. Specifically, the user's data operation request is received via the virtual mobile terminal graphical user interface output by the terminal TEE module in the 5G mobile communication terminal, and the user can operate the virtual mobile terminal of the cloud server in accordance with the data operation request.

[0027] In an embodiment of the present invention, a plurality of trusted applications are provided on the virtual mobile terminal for performing corresponding different operations on sensitive data on the cloud server, thereby providing corresponding sensitive data access services to the 5G mobile communication terminal.

[0028] In step S102, the data operation request is sent to the cloud server so that the server TEE module operates according to the data operation request and returns the operation result video stream to the 5G mobile communication terminal.

[0029] In an embodiment of the present invention, a 5G mobile communication terminal sends a user's data operation request to a cloud server. The cloud server is equipped with a server TEE module, and a virtual mobile terminal runs in the server TEE module. The server TEE module operates on sensitive data in the cloud server based on the data operation request sent by the terminal TEE module. To better adapt to the 5G mobile communication network and to provide users with the same real-time operation experience as a local terminal while ensuring the security of the operation result data, the server TEE module returns the operation result to the 5G mobile communication terminal in the form of a video stream after performing the operation based on the data operation request.

[0030] In step S103, the operation result video stream returned by the cloud server is received, and the operation result is output on the screen of the 5G mobile communication terminal through the terminal TEE module.

[0031] In an embodiment of the present invention, when a 5G mobile communication terminal receives an operation result video stream returned by a cloud server, it can receive the operation result video stream returned by the cloud server through the 5G mobile communication network, so as to provide users with a real-time operation experience similar to that of a local terminal while ensuring the security of the operation result data.

[0032] The embodiment of the present invention receives a user's data operation request through the graphical user interface of a virtual mobile terminal output by the terminal TEE module in the 5G mobile communication terminal, sends the data operation request to the cloud server, so that the server TEE module performs an operation according to the data operation request, and returns an operation result video stream to the 5G mobile communication terminal, receives the operation result video stream returned by the cloud server, and outputs the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module, thereby providing a data processing method for trusted data for the 5G mobile communication terminal, improving the data security when the 5G mobile communication terminal accesses sensitive data, and reducing the hardware requirements for data trusted operations based on the 5G mobile communication terminal.

[0033] Example 2:

[0034] Figure 2 The following illustrates an implementation process of a 5G-based cloud-based trusted data processing method provided in the second embodiment of the present invention. For ease of illustration, only the portion related to the embodiment of the present invention is shown, which is described in detail as follows:

[0035] In step S201, a user's access request to a virtual mobile terminal is received through the terminal TEE module of the 5G mobile communication terminal.

[0036] In an embodiment of the present invention, when a 5G mobile communication terminal user wants to access a virtual mobile terminal, the terminal TEE module of the 5G mobile communication terminal can receive an access request for accessing the virtual mobile terminal input by the user. Specifically, a specific identifier or button on the 5G mobile communication terminal can be operated to trigger the generation of an access request for accessing the virtual mobile terminal. The specific identifier can be an application icon on the 5G mobile communication terminal or a physical button on the 5G mobile communication terminal. As an example, an application icon corresponding to the virtual mobile terminal is set in the graphical user interface of the 5G mobile communication terminal. When the user clicks the icon, an access request for accessing the virtual mobile terminal by the user is generated.

[0037] In step S202, the user is authenticated by the terminal TEE module. After the authentication is passed, the video stream returned by the cloud server is received. The video stream is the video stream of the graphical user interface of the virtual mobile terminal.

[0038] In an embodiment of the present invention, after receiving a user's access request, the terminal TEE module authenticates the user's identity information to ensure that the user is a legitimate user with access to sensitive data on the cloud server. Specifically, when authenticating a user, the user can be authenticated using the identity information stored in the terminal TEE module, or by communicating with the cloud server to authenticate the user accessing the virtual mobile terminal. Once authenticated, the cloud server returns the virtual mobile terminal's graphical user interface to the terminal TEE module in the form of a video stream, which the terminal TEE receives and decodes.

[0039] In a preferred embodiment of the present invention, the user is authenticated through the terminal TEE module. When the authentication is passed, it is detected whether there is a virtual mobile terminal associated with the user in the server TEE module. If there is no virtual mobile terminal associated with the user, a virtual mobile terminal is established for the user in the server TEE module. If there is a virtual mobile terminal associated with the user, the virtual mobile terminal is started to respond to the user's access request in a timely manner.

[0040] Further preferably, after the terminal TEE module receives the video stream of the virtual mobile terminal graphical user interface returned by the cloud server, the terminal TEE module obtains the screen parameters of the 5G mobile communication terminal, decodes the video stream of the virtual mobile terminal graphical user interface, and then adjusts the decoded graphical user interface according to the obtained screen parameters, and outputs the decoded graphical user interface through the screen of the 5G mobile communication terminal, thereby adaptively outputting the virtual mobile terminal graphical user interface according to the screen parameters of the 5G mobile communication terminal, thereby improving the user experience.

[0041] In step S203, a user's data operation request is received through the graphical user interface of the virtual mobile terminal output by the terminal TEE module.

[0042] In step S204, the data operation request is sent to the cloud server so that the server TEE module operates according to the data operation request and returns the operation result video stream to the 5G mobile communication terminal.

[0043] In an embodiment of the present invention, a 5G mobile communication terminal sends a user's data operation request to a cloud server. The cloud server is equipped with a server TEE module, and a virtual mobile terminal runs in the server TEE module. The server TEE module operates on sensitive data in the cloud server based on the data operation request sent by the terminal TEE module. To better adapt to the 5G mobile communication network and to provide users with the same real-time operation experience as a local terminal while ensuring the security of the operation result data, the server TEE module returns the operation result to the 5G mobile communication terminal in the form of a video stream after performing the operation based on the data operation request.

[0044] In step S205, the operation result video stream returned by the cloud server is received, and the operation result is output on the screen of the 5G mobile communication terminal through the terminal TEE module.

[0045] In an embodiment of the present invention, when a 5G mobile communication terminal receives an operation result video stream returned by a cloud server, it can receive the operation result video stream returned by the cloud server through the 5G mobile communication network, so as to provide users with a real-time operation experience similar to that of a local terminal while ensuring the security of the operation result data.

[0046] The embodiment of the present invention receives a user's data operation request through the graphical user interface of a virtual mobile terminal output by the terminal TEE module in the 5G mobile communication terminal, sends the data operation request to the cloud server, so that the server TEE module performs an operation according to the data operation request, and returns an operation result video stream to the 5G mobile communication terminal, receives the operation result video stream returned by the cloud server, and outputs the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module, thereby providing a data processing method for trusted data for the 5G mobile communication terminal, improving the data security when the 5G mobile communication terminal accesses sensitive data, and reducing the hardware requirements for data trusted operations based on the 5G mobile communication terminal.

[0047] Example 3:

[0048] Figure 3 The structure of a 5G-based cloud-based trusted data processing device provided in the third embodiment of the present invention is shown. For ease of illustration, only the parts related to the embodiment of the present invention are shown, including:

[0049] a request receiving unit 31, configured to receive a user's data operation request through a graphical user interface of a virtual mobile terminal output by a terminal TEE module in a 5G mobile communication terminal, where the virtual mobile terminal is located in a server TEE module of a cloud server;

[0050] A request sending unit 32 is used to send a data operation request to the cloud server, so that the server TEE module operates according to the data operation request and returns an operation result video stream to the 5G mobile communication terminal; and

[0051] The result output unit 33 is used to receive the operation result video stream returned by the cloud server and output the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module.

[0052] In an embodiment of the present invention, a graphical user interface of a virtual mobile terminal is output through the terminal TEE module in the 5G mobile communication terminal, a data operation request of the user is received, and the data operation request is sent to the cloud server, so that the server TEE module operates according to the data operation request and returns an operation result video stream to the 5G mobile communication terminal. The 5G mobile communication terminal receives the operation result video stream returned by the cloud server, and outputs the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module, thereby providing a data processing method for trusted data for the 5G mobile communication terminal, improving the data security when the 5G mobile communication terminal accesses sensitive data, and reducing the hardware requirements for data trusted operations based on the 5G mobile communication terminal.

[0053] In the embodiments of the present invention, each unit of the data processing device may be implemented by a corresponding hardware or software unit. Each unit may be an independent hardware or software unit, or may be integrated into a single hardware or software unit, without limiting the present invention. The specific implementation of each unit can be found in the description of the corresponding steps in Example 1 and will not be repeated here.

[0054] Example 4:

[0055] Figure 4 The structure of a 5G-based cloud-based trusted data processing device provided by the fourth embodiment of the present invention is shown. For ease of illustration, only the parts related to the embodiment of the present invention are shown, including:

[0056] An access receiving unit 41 is configured to receive an access request from a user to access a virtual mobile terminal through a terminal TEE module in a 5G mobile communication terminal;

[0057] The authentication processing unit 42 is used to authenticate the user through the terminal TEE module. When the authentication is passed, the authentication processing unit 42 receives the video stream returned by the cloud server. The video stream is the video stream of the graphical user interface of the virtual mobile terminal.

[0058] a request receiving unit 43 for receiving a user's data operation request through a graphical user interface of a virtual mobile terminal output by a terminal TEE module, the virtual mobile terminal being located in a server TEE module of a cloud server;

[0059] A request sending unit 44 is configured to send a data operation request to the cloud server, so that the server TEE module performs an operation according to the data operation request and returns a video stream of the operation result to the 5G mobile communication terminal; and

[0060] The result output unit 45 is used to receive the operation result video stream returned by the cloud server and output the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module.

[0061] The authentication processing unit 42 includes:

[0062] A virtual terminal detection unit 421 is configured to detect whether there is a virtual mobile terminal associated with the user in the server TEE module after the authentication is passed;

[0063] a virtual terminal establishing unit 422, configured to establish a virtual mobile terminal for the user in the server TEE module if one does not exist; and

[0064] The virtual terminal starting unit 423 is configured to start the virtual mobile terminal if it is detected that a virtual mobile terminal associated with the user exists in the server TEE module.

[0065] In a preferred embodiment, the authentication processing unit 42 may further include:

[0066] A parameter acquisition unit, configured to acquire screen parameters of a 5G mobile communication terminal;

[0067] a video stream decoding unit, configured to decode a video stream of a graphical user interface of a virtual mobile terminal; and

[0068] The interface adjustment unit is used to adjust the decoded graphical user interface according to the acquired screen parameters.

[0069] In the embodiments of the present invention, each unit of the data processing device may be implemented by a corresponding hardware or software unit. Each unit may be an independent hardware or software unit, or may be integrated into a single hardware or software unit, without limiting the present invention. The specific implementation of each unit can be found in the description of the corresponding steps in Example 2 and will not be repeated here.

[0070] Embodiment 5:

[0071] Figure 5 The structure of the 5G mobile communication terminal provided in the fifth embodiment of the present invention is shown. For the convenience of explanation, only the parts related to the embodiment of the present invention are shown.

[0072] The 5G mobile communication terminal 5 of the embodiment of the present invention includes a processor 50, a memory 51, and a computer program 52 stored in the memory 51 and executable on the processor 50. When the processor 50 executes the computer program 52, the steps in the above-mentioned trusted data processing method embodiment are implemented, such as Figure 1 Alternatively, when the processor 50 executes the computer program 52, the functions of each unit in the above-mentioned device embodiment are realized, for example Figure 3 The functions of the units 31 to 33 are shown.

[0073] In an embodiment of the present invention, a graphical user interface of a virtual mobile terminal is output through the terminal TEE module in the 5G mobile communication terminal, a data operation request from a user is received, and the data operation request is sent to a cloud server so that the server TEE module operates according to the data operation request and returns an operation result video stream to the 5G mobile communication terminal. The operation result video stream returned by the cloud server is received, and the operation result is output on the screen of the 5G mobile communication terminal through the terminal TEE module, thereby providing a data processing method for the 5G mobile communication terminal to obtain and operate cloud data, thereby improving the data security when the 5G mobile communication terminal accesses sensitive data, and at the same time reducing the hardware requirements for data trusted operations based on the 5G mobile communication terminal.

[0074] The 5G mobile communication terminal of the embodiment of the present invention can be a mobile phone or tablet computer with 5G mobile communication capabilities. The steps implemented when the processor 50 in the 5G mobile communication terminal 5 executes the computer program 52 to implement the 5G-based cloud-based trusted data processing method can be referred to the description of the aforementioned method embodiment and will not be repeated here.

[0075] Example 6:

[0076] In an embodiment of the present invention, a computer-readable storage medium is provided, which stores a computer program. When the computer program is executed by a processor, the steps in the above data processing method embodiment are implemented. For example, Figure 1 Alternatively, when the computer program is executed by a processor, the functions of each unit in the above-mentioned device embodiments are realized, for example Figure 3 The functions of the units 31 to 33 are shown.

[0077] In an embodiment of the present invention, when the computer program is executed by the processor, the graphical user interface of the virtual mobile terminal is output through the terminal TEE module in the 5G mobile communication terminal, the user's data operation request is received, the data operation request is sent to the cloud server, so that the server TEE module operates according to the data operation request, and returns the operation result video stream to the 5G mobile communication terminal, receives the operation result video stream returned by the cloud server, and outputs the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module, thereby providing a data processing method for the 5G mobile communication terminal to obtain and operate cloud data, thereby improving the data security when the 5G mobile communication terminal accesses sensitive data, and at the same time reducing the hardware requirements for data trusted operations based on the 5G mobile communication terminal.

[0078] The computer-readable storage medium of the embodiment of the present invention may include any entity, device, or recording medium capable of carrying computer program code, for example, ROM / RAM, magnetic disk, optical disk, flash memory, or other memory.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A 5G-based cloud-based trusted data processing method, characterized in that: The method comprises the following steps: Receive a user's data operation request through a graphical user interface of a virtual mobile terminal output by a terminal TEE module in a 5G mobile communication terminal. The virtual mobile terminal is located in a server TEE module of a cloud server. A plurality of trusted applications are provided on the virtual mobile terminal for operating sensitive data on the cloud server. The trusted applications run in the server TEE module to ensure that operations on sensitive data are performed in a trusted environment. Sending the data operation request to the cloud server, so that the server TEE module performs an operation according to the data operation request and returns an operation result video stream to the 5G mobile communication terminal; Receive the operation result video stream returned by the cloud server, and output the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module; Before the step of receiving a user's data operation request through the graphical user interface of the virtual mobile terminal output by the terminal TEE module in the 5G mobile communication terminal, the method further includes: Receiving, through the terminal TEE module, an access request from the user to access the virtual mobile terminal; Authenticating the user through the terminal TEE module, and when the authentication is passed, receiving the video stream returned by the cloud server, the video stream being the video stream of the graphical user interface of the virtual mobile terminal; Before the step of receiving the video stream returned by the cloud server, the method further includes: After the authentication is passed, it is detected whether there is a virtual mobile terminal associated with the user in the server TEE module. If not, a virtual mobile terminal is established for the user in the server TEE module; if it is detected that there is a virtual mobile terminal associated with the user in the server TEE module, the virtual mobile terminal is started. When authenticating the user, the user is authenticated by the identity information stored in the terminal TEE module, or the user accessing the virtual mobile terminal is authenticated by communicating with the cloud server.

2. The method according to claim 1, wherein After the step of receiving the video stream returned by the cloud server, the method further includes: Obtaining screen parameters of the 5G mobile communication terminal; decoding a video stream of a graphical user interface of the virtual mobile terminal; The decoded graphical user interface is adjusted according to the acquired screen parameters, and the decoded graphical user interface is output through the screen of the 5G mobile communication terminal.

3. The method according to claim 1, wherein The step of receiving the operation result video stream returned by the cloud server is specifically: The operation result video stream returned by the cloud server is received through the 5G mobile communication network.

4. A 5G-based cloud-based trusted data processing device, characterized in that: The device comprises: a request receiving unit, configured to receive a user's data operation request through a graphical user interface of a virtual mobile terminal output by a terminal TEE module in a 5G mobile communication terminal, wherein the virtual mobile terminal is located in a server TEE module of a cloud server, wherein a plurality of trusted applications are provided on the virtual mobile terminal for operating sensitive data on the cloud server, and the trusted applications run in the server TEE module to ensure that operations on sensitive data are performed in a trusted environment; a request sending unit, configured to send the data operation request to the cloud server, so that the server TEE module performs an operation according to the data operation request and returns an operation result video stream to the 5G mobile communication terminal; and A result output unit is configured to receive the operation result video stream returned by the cloud server and output the operation result on the screen of the 5G mobile communication terminal through the terminal TEE module; The device further comprises: an access request receiving unit, configured to receive, through the terminal TEE module, an access request from the user to access the virtual mobile terminal; A video stream receiving unit is configured to authenticate the user through the terminal TEE module and, when the authentication is successful, receive a video stream returned by the cloud server, wherein the video stream is a video stream of the graphical user interface of the virtual mobile terminal; The terminal detection unit is used to detect whether there is a virtual mobile terminal associated with the user in the server TEE module after the authentication is passed. If not, a virtual mobile terminal is established for the user in the server TEE module; if it is detected that there is a virtual mobile terminal associated with the user in the server TEE module, the virtual mobile terminal is started, wherein, when authenticating the user, the user is authenticated by the identity information stored in the terminal TEE module, or the user accessing the virtual mobile terminal is authenticated by communicating with the cloud server.

5. A 5G mobile communication terminal comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 3 are implemented.

6. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 3 are implemented.

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