JP6725844B2 - Information processing apparatus, data management method, and data management program - Google Patents

Description

The present invention relates to an information processing device, a data management method, and a data management program.

Traditionally, it has been popular to store files in cloud systems without storing them on employees' terminals, but even if you want to use files outside the company, you cannot always use the network environment. There are many situations where the file cannot be used.

In recent years, a method of bringing out a file from a cloud system while ensuring security by encryption and file distribution has been used. For example, there is known a technique of dividing a file using a virtual drive so as to suppress the outflow of data even when a notebook computer is lost.

Specifically, when saving data, a virtual drive is created on the laptop computer, and one file is divided on the virtual drive so that the contents cannot be restored by itself, and the data is saved between the laptop computer and USB (Universal Serial Bus). Save in storage media. When using data, the split file saved in the laptop computer and the split file saved in the USB storage medium are merged and used on the virtual drive of the laptop computer.

Japanese Patent No. 6019514

However, in the above technique, a file may be saved in a notebook computer in an undivided state due to an erroneous operation, and the risk of data leakage is high.

For example, in the above technology, filer software of OS (Operating System) of the notebook computer is used to move the file to the virtual drive, and the file is divided and stored in the notebook computer and the USB storage medium. However, since the USB storage medium is also recognized as a drive, the USB storage medium is displayed on the filer software in the same manner as a virtual drive. Therefore, the user may mistakenly move the file to the USB storage medium instead of the virtual drive. In this case, the file is stored as it is in the USB storage medium without being divided, so that if the USB storage medium is lost, a third party can easily browse the file and data is leaked.

In one aspect, it is an object to provide an information processing device, a data management method, and a data management program that can reduce the risk of data leakage due to erroneous operation.

In the first proposal, in the information processing device , a reception unit that receives a drag operation of a file onto a dedicated display area for arranging a file to be divided , and the file stored in the cloud system by the drag operation. When is moved to the display area, if a confirmation unit for performing connection confirmation by wireless communication to the external storage medium, and a connection by wireless communication can be made between the external storage medium, the file is dragged Previous Symbol display area is divided into a plurality of divided files is a format that can not be restored to contents at each alone, if it can not be connected by wireless communication with the external storage medium, the A division unit that suppresses the division of the file and suppresses the movement of the file from the cloud system to the information processing apparatus, and when divided into the division files, the information processing apparatus is physically independent different in an external storage medium and said information processing apparatus, having a storage control unit for storing by dispersing the plurality of divided files.
In the second proposal, in the information processing device, a reception unit that receives a drag operation of a file onto a dedicated display area for arranging a file to be divided, and a file dragged onto the display area are respectively provided. The plurality of division files are divided into a division unit that divides the content into a plurality of division files whose contents cannot be restored by a single unit, a different external storage medium physically independent of the information processing apparatus, and the information processing apparatus. A storage control unit that stores data in a distributed manner, a confirmation unit that executes connection confirmation by wireless communication with respect to the storage medium in which the divided file is stored when a file restore operation is received, and the external storage When a wireless communication connection with a medium is possible, the divided file is obtained from the external storage medium, the file is restored, and a wireless communication connection with the external storage medium is not possible. And a restoration unit that suppresses restoration of the file.

According to one embodiment, the risk of data leakage due to an erroneous operation can be reduced.

FIG. 1 is a diagram illustrating a system configuration example according to the first embodiment. FIG. 2 is a diagram illustrating a screen transition of file division. FIG. 3 is a diagram illustrating a screen transition of file restoration. FIG. 4 is a functional block diagram of the functional configuration of the information processing apparatus according to the first embodiment. FIG. 5 is a sequence diagram showing the flow of division processing. FIG. 6 is a sequence diagram showing the flow of restoration processing. FIG. 7 is a sequence diagram showing the flow of deletion processing. FIG. 8 is a diagram illustrating a hardware configuration example.

Hereinafter, embodiments of the information processing device, the data management method, and the data management program disclosed in the present application will be described in detail with reference to the drawings. The present invention is not limited to the embodiments.

[overall structure]
FIG. 1 is a diagram illustrating a system configuration example according to the first embodiment. As shown in FIG. 1, this system includes a cloud server 1 on a cloud system C, an information processing device 10, and a wireless communication device 50 (hereinafter, sometimes referred to as a smartphone 50).

This system is a system used in a company or a school, and is a system in which data is stored in a cloud system C without storing the data in a local personal computer. Therefore, when a file is stored in the information processing apparatus 10, the file is acquired from the cloud system C and stored after securing security by encryption and file distribution. A thin client system is an example of the system.

The cloud server 1 and the information processing device 10 are connected via the network N. As the network N, various networks such as the Internet and a dedicated line can be adopted regardless of wired or wireless.

The information processing device 10 and the wireless communication device 50 are connected by wireless communication. Note that wireless communication includes short-range wireless communication such as Bluetooth (registered trademark) (hereinafter, may be referred to as BT) and NFC (Near Field Communication), carrier network such as LTE (Long Term Evolution), and Wi. Various wireless communication such as wireless communication such as -Fi (Wireless Fidelity), infrared ray, non-contact type or contact type communication can be adopted.

The cloud server 1 is an example of a server device that stores files such as employees. The cloud server 1 transmits the corresponding file to the information processing device 10 in response to a request from the information processing device 10.

The information processing device 10 is an example of a terminal used by an employee or the like. For example, the information processing device 10 acquires a file from the cloud server 1, edits the file, and saves the file on the cloud server 1. The wireless communication device 50 is an example of a mobile terminal having a wireless function, and is, for example, a smartphone or a tablet terminal.

In such a system, the information processing device 10 receives a drag operation of a file on a predetermined icon for a file stored in the cloud server 1. Then, the information processing device 10 divides the file dragged to the predetermined icon into a plurality of divided files according to a predetermined division format using encryption. After that, the information processing device 10 distributes and stores a plurality of divided files in the smartphone 50 and the information processing device 10 which are different external storage media physically independent of the information processing device 10.

Therefore, the information processing apparatus 10 can use a general filer or the like to determine the destination of the file and move the file using a dedicated application instead of moving the file. As a result, the information processing device 10 can reduce the risk of data leakage due to an erroneous operation.

[Explanation of division/restoration]
Next, file division and file restoration executed by the information processing apparatus 10 will be described using screen transitions, which are the user's viewpoint.

(File division)
FIG. 2 is a diagram illustrating a screen transition of file division. As shown in FIG. 2, the information processing apparatus 10 has a data registration icon for an application that divides a file on a screen P such as a top screen even when wireless communication with the smartphone 50 is not connected. Is displayed.

In this state, the information processing device 10 displays the data registration screen Q when the data registration icon is activated. On the data registration screen Q, a message indicating that the file can be divided by a drag operation, a file designation icon for designating a file to be split, a folder designation icon for designating a folder to be split, a cancel icon, etc. are displayed.

After that, when the information processing apparatus 10 detects that the file A is moved to the data registration screen Q by the drag operation from the file list H on the cloud searched and displayed by the filer installed as a standard, the file A Is divided into a format whose contents cannot be restored by itself, and a divided file A1 and a divided file A2 are generated.

Subsequently, the information processing apparatus 10 saves the divided file A1 in the internal disk, updates the storage file list that manages the divided file, and transmits the divided file A2 to the smartphone 50. Then, the smartphone 50 saves the divided file A2 received from the information processing device 10 in the internal disk. In this way, the information processing apparatus 10 divides each file into a format in which the content cannot be restored by itself by only a drag operation to the designated screen.

(File restoration)
FIG. 3 is a diagram illustrating a screen transition of file restoration. As shown in FIG. 3, the information processing apparatus 10 displays a list of stored files of applications that perform file restoration on the screen P such as the top screen even when wireless communication with the smartphone 50 is not connected. Show icon.

In this state, the information processing apparatus 10 displays the stored file list screen M when the stored file list icon is activated. The stored file list screen M displays a list of files that are divided and saved. The file list displays file names (names), update date and time, size, and the like.

After that, when detecting that the file A to be restored is selected from the stored file list screen M, the information processing apparatus 10 reads one of the divided files A1 generated from the file A from the built-in disk. Further, the information processing device 10 acquires the other divided file A1 generated from the file A from the smartphone 50. Then, the information processing apparatus 10 restores and displays the file A using the divided files A1 and A2.

[Function configuration]
Next, the functional configuration of the information processing device 10 will be described. FIG. 4 is a functional block diagram of the functional configuration of the information processing apparatus 10 according to the first embodiment. As shown in FIG. 4, the information processing device 10 includes a communication unit 11, a short-range communication unit 12, a storage unit 13, and a control unit 20.

The communication unit 11 is a processing unit that controls communication of another device, and is, for example, a communication interface. The communication unit 11 transmits/receives data such as files and folders to/from the cloud server 1 via the network N.

The short-range communication unit 12 is a processing unit that controls communication with the smartphone 50 using BT or the like. For example, the short-range communication unit 12 transmits the divided file to the smartphone 50 and receives the divided file from the smartphone 50.

The storage unit 13 is an example of a storage device that stores programs and data, and is, for example, a memory or a hard disk. The storage unit 13 stores the divided file DB 14. The split file DB 14 is a database that stores split files that have been split in a format whose contents cannot be restored by themselves. For example, the division file DB 14 stores the name of the division source file, the division file, the update date and time, the information of the terminal that stores another division file having the same division source, and the like in association with each other.

For example, the information of the terminal that stores another divided file having the same division source is an identifier used during communication by BT. With this information, even in a setting situation in which there are a plurality of divided file storage destinations, it is possible to specify the terminal that stores the other divided file when restoring the file.

The control unit 20 is a processing unit that controls the entire information processing apparatus 10, and is, for example, a processor. The control unit 20 has a terminal authentication unit 21 and a divided application execution unit 30. The terminal authentication unit 21 and the divided application execution unit 30 are an example of an electronic circuit included in the processor and an example of a process executed by the processor.

The terminal authentication unit 21 is a processing unit that executes terminal authentication with the smartphone 50 when performing near field communication such as BT. Specifically, the terminal authentication unit 21 performs pairing and the like with the smartphone 50, and transits to a communicable state. The pairing can be executed at any timing, but it is preferable to start the file division processing.

The divided application execution unit 30 includes a reception unit 31, a confirmation unit 32, a division unit 33, a restoration unit 34, and a deletion unit 35, and is a processing unit that executes file division processing and file restoration processing. Further, the divided application executing unit 30 displays the data registration icon and the stored file list icon on the screen of the information processing device 10 even in the situation where the wireless communication with the smartphone 50 is not connected.

The reception unit 31 is a processing unit that receives a drag operation of a file onto the data registration icon. Specifically, the reception unit 31 displays the data registration screen Q when the data registration icon is activated. When the reception unit 31 detects a drag operation for moving the file stored in the cloud server 1 onto the data registration screen Q, the reception unit 31 notifies the confirmation unit 32 that the drag operation has been detected.

The receiving unit 31 is a processing unit that receives a file restoring operation. Specifically, when the storage file list icon is activated, the reception unit 31 displays the storage file list screen M. Then, the reception unit 31 receives a file restore operation on the stored file list screen M. It should be noted that for the restore operation, existing methods such as pressing the "open" icon and selecting the "open" button by right-clicking on the file name can be adopted. Further, it is not necessary to open the icon at the time of division and at the time of restoration, and a drag operation onto the icon may be performed.

The confirmation unit 32 is a processing unit that executes connection confirmation by wireless communication with the smartphone 50 when a file stored in the cloud server 1 is moved to the data registration screen Q by a drag operation. Specifically, the confirmation unit 32, when notified of the occurrence of the drag operation from the reception unit 31, transmits a signal to the paired smartphone 50 and determines whether or not there is a response.

For example, the confirmation unit 32 transmits a signal to the smartphone 50 using BT, and when receiving a response from the smartphone 50, instructs the division unit 33 to perform division. On the other hand, when the confirmation unit 32 transmits a signal to the smartphone 50 using the BT and cannot receive a response from the smartphone 50, the confirmation unit 32 displays a message indicating an error occurrence on the display unit such as a display.

When a plurality of smartphones 50 are designated as the storage destinations, the confirmation unit 32 can also confirm the connection status with all the smartphones that can communicate with the BT, and the smartphone to be used as the division destination can be displayed to the user. You can also select it and check the connection status with the selected smartphone.

It should be noted that the confirmation unit 32 executes the connection confirmation by wireless communication with the smartphone 50 by the same method when the file restoration operation is received by the reception unit 31.

The division unit 33 is a processing unit that divides the file into a format in which the content cannot be restored by itself. For example, the splitting unit 33 acquires the dragged file A from the cloud server 1 when the splitting unit 33 instructs the splitting to be performed. Then, the dividing unit 33 divides the divided file A1 and the divided file A2 using an arbitrary secret sharing method such as an exclusive OR or a threshold distribution method.

After that, the division unit 33 stores the division file A1 in the division file DB 14 and transmits the division file A2 to the smartphone 50 using BT. The division unit 33 also updates a file list or the like that manages the divided files.

The restoration unit 34 is a processing unit that restores the divided files. Specifically, when the restoration operation of the file A is accepted, the restoration unit 34 reads the split file A1 from the split file DB 14, and refers to the split file DB 14 to set the smartphone 50 that is the storage destination of the split file A2. Identify. Then, the restoration unit 34 transmits a transmission instruction of the divided file A2 to the smartphone 50 and acquires the divided file A2 from the smartphone 50.

After that, the restoration unit 34 restores the file A from the split file A1 and the split file A2 using the existing method and displays it on the display. At this time, the restoration unit 34 only restores and displays the file A, and does not save the file A itself to the disk or the like.

The deletion unit 35 is a processing unit that deletes the divided files. For example, when the deletion unit 35 receives an instruction to delete the file A on the stored file list screen M, the deletion unit 35 deletes the divided file A1 from the divided file DB 14 and specifies the smartphone 50 that is the storage destination of the divided file A2. Then, the deletion unit 35 transmits an instruction to delete the divided file A2 to the smartphone 50, and deletes the divided file A2 from the smartphone 50.

When the deletion completion response cannot be received from the smartphone 50 due to the short-distance communication connection or the like, the deletion unit 35 periodically transmits the deletion instruction until the deletion completion response is received. Moreover, when the deletion of the file A is completed, the deletion unit 35 deletes the file A from the stored file list.

[Flow of division processing]
FIG. 5 is a sequence diagram showing the flow of division processing. As shown in FIG. 5, the divided application execution unit 30 of the information processing device 10 receives the user operation to activate the data registration icon in the state where the data registration icon is displayed (S101) (S102), and then the data registration screen is displayed. Q is displayed (S103).

Then, the terminal authentication unit 21 performs pairing with the smartphone 50, authenticates the smartphone 50, and transitions to a state in which communication by BT is possible (S104, S105, S106).

After that, when the file stored in the cloud server 1 is moved to the information processing device 10 (data registration screen Q) by a drag operation (S107 and S108), the split application executing unit 30 of the information processing device 10 will use the smartphone 50. To the BT to confirm the connection of the BT (S109 and S110).

Here, when the smartphone 50 transmits a response to the transmitted signal to the information processing device 10 (S111 and S112), the divided app execution unit 30 of the information processing device 10 recognizes that the connection confirmation has been obtained (S113: Yes). ), the file is divided (S114).

After that, the divided application executing unit 30 stores one divided file in the disk (S115) and transmits the other divided file to the smartphone 50 using BT (S116 and S117).

Then, the smartphone 50 stores the other received split file in the disk (S118). At this time, the smartphone 50 can notify the information processing device 10 of the completion of storage. Further, the divided application executing unit 30 updates the list of stored files (S119). In S113, if the connection cannot be confirmed (S113: No), the divided application executing unit 30 ends the process.

[Restoration process flow]
FIG. 6 is a sequence diagram showing the flow of restoration processing. As illustrated in FIG. 6, the divided application executing unit 30 of the information processing device 10 receives the user operation to activate the stored file list icon while displaying the stored file list icon (S201), and stores the stored file list icon (S202). The file list screen M is displayed (S203).

After that, when the split application executing unit 30 of the information processing device 10 detects a file selection and restoration operation on the stored file list screen M (S204), it sends a signal to the smartphone 50 to confirm the BT connection. Execute (S205 and S206).

Here, when the smartphone 50 transmits a response to the transmitted signal to the information processing device 10 (S207 and S208), the divided application executing unit 30 of the information processing device 10 recognizes that the connection confirmation has been obtained (S209: Yes). ), the divided files are read from the disk (S210).

After that, the divided application executing unit 30 uses BT to transmit the transmission instruction of the other divided file to the smartphone 50 (S211 and S212). Then, when the smartphone 50 receives the transmission instruction, the smartphone 50 reads the other divided file stored in the disc and transmits it to the information processing device 10 using the BT (S213 and S214).

Then, the divided application executing unit 30 restores the file using the divided file (S215). At this time, the divided application executing unit 30 updates the list of stored files. In S209, if the connection cannot be confirmed (S209: No), the divided application executing unit 30 ends the process.

[Flow of deletion processing]
FIG. 7 is a sequence diagram showing the flow of deletion processing. As shown in FIG. 7, the divided application executing unit 30 of the information processing device 10 receives a user operation for activating the stored file list icon (S301) while displaying the stored file list icon (S302), and then stores the stored file list icon. The file list screen M is displayed (S303).

After that, when the split application executing unit 30 of the information processing device 10 detects a file selection and deletion operation on the stored file list screen M (S304), it sends a signal to the smartphone 50 to confirm the BT connection. Execute (S305 and S306). The connection confirmation can be omitted.

Here, when the smartphone 50 transmits a response to the transmitted signal to the information processing device 10 (S307 and S308), the divided application executing unit 30 of the information processing device 10 recognizes that the connection confirmation is obtained (S309: Yes). ), the divided file is deleted from the disk (S310).

After that, the divided application executing unit 30 transmits an instruction to delete the other divided file to the smartphone 50 using BT (S311 and S312). Then, when the smartphone 50 receives the deletion instruction, the smartphone 50 deletes the other divided file stored in the disk (S313) and notifies the information processing apparatus 10 of the completion of deletion using the BT (S314 and S315). After that, the divided application executing unit 30 updates the list of stored files (S316). In S309, if the connection cannot be confirmed (S309: No), the divided application executing unit 30 may end the process or may repeat the process until the confirmation is obtained.

[effect]
Since the information processing apparatus 10 divides the file by dragging the dedicated icon that is displayed even when the information processing apparatus 10 is not connected to the external storage medium, malfunctions can be suppressed. Further, since the information processing device 10 is connected to an external storage medium (smartphone) during a drag operation, it is possible to prevent unnecessary division processing from occurring even if a malfunction occurs. Therefore, the information processing device 10 can suppress the occurrence of a malfunction and reduce the risk of data leakage due to a malfunction even when a malfunction occurs.

Although the embodiments of the present invention have been described so far, the present invention may be implemented in various different forms other than the above-described embodiments. Therefore, different embodiments will be described below.

[Disconnect]
For example, the information processing apparatus 10 may disconnect the short-distance wireless connection such as BT when the divided file is transmitted to the smartphone 50 and when the reception of the divided file is notified from the smartphone 50. In this way, the information processing apparatus 10 can enhance security and more securely prevent leakage by establishing a short-distance wireless connection only when necessary.

[Division number]
In the above embodiment, an example in which the number of divisions is two has been described, but the number of divisions is not limited to this, and the setting can be changed arbitrarily. Further, the number of divisions can be dynamically changed according to the number of smartphones capable of short-distance communication with the information processing device 10. For example, the information processing device 10 can transmit a BT signal to a plurality of smartphones, divide the file into the same number as the number of responding terminals, and store the divided files in each terminal. Further, when a plurality of smartphones are designated in advance as destinations, the information processing apparatus 10 may divide the file into the same number as the designated number of terminals and store the divided files in each terminal. it can. Various known methods can be adopted as the division method and the encryption method.

[Device type]
In the above embodiment, the information processing device 10 and the smartphone 50 are described as an example, but the present invention is not limited to this. For example, the smartphone 50 can divide the file, and even if both are information processing devices or smartphones, the same processing can be performed. Note that the division target is not limited to a file, and may be a folder or the like, and various data such as moving images, still images, voices, and texts can be targets. Further, not only the drag operation but also other general operation used for file selection can be adopted.

[system]
The information including the processing procedures, control procedures, specific names, various data and parameters shown in the above-mentioned documents and drawings can be arbitrarily changed unless otherwise specified.

Further, each component of each device shown in the drawings is functionally conceptual and does not necessarily have to be physically configured as shown. That is, the specific form of distribution/integration of each device is not limited to that shown in the drawings. That is, all or part of them can be functionally or physically distributed/integrated in arbitrary units according to various loads or usage conditions. Further, each processing function performed by each device may be implemented in whole or in part by a CPU and a program that is analyzed and executed by the CPU, or may be realized as hardware by a wired logic.

[Hardware configuration]
FIG. 8 is a diagram illustrating a hardware configuration example. As illustrated in FIG. 8, the information processing device 10 includes a communication interface 10a, an HDD (Hard Disk Drive) 10b, a memory 10c, and a processor 10d.

The communication interface 10a is a network interface card or a short-range wireless interface that controls communication of another device. Note that the wireless interface for transmitting/receiving data to/from the cloud server 1 and the short-range wireless interface for transmitting/receiving data to/from the smartphone 50 may be configured by separate hardware. The HDD 10b is an example of a storage device that stores programs and data.

Examples of the memory 10c include RAM (Random Access Memory) such as SDRAM (Synchronous Dynamic Random Access Memory), ROM (Read Only Memory), and flash memory. Examples of the processor 10d include a CPU (Central Processing Unit), a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), and a PLD (Programmable Logic Device).

Further, the information processing device 10 operates as an information processing device that executes the data management method by reading and executing the program. That is, the information processing device 10 executes a program that executes the same functions as the terminal authentication unit 21 and the divided application execution unit 30. As a result, the information processing device 10 can execute a process that executes the same functions as the terminal authentication unit 21 and the divided application execution unit 30. It should be noted that the programs described in the other embodiments are not limited to being executed by the information processing device 10. For example, the present invention can be similarly applied to the case where another computer or server executes the program, or when these cooperate with each other to execute the program.

This program can be distributed via a network such as the Internet. In addition, this program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk (FD), a CD-ROM, an MO (Magneto-Optical disk), a DVD (Digital Versatile Disc), etc. It can be executed by being read.

10 information processing device 11 communication unit 12 near field communication unit 13 storage unit 14 split file DB
20 control unit 21 terminal authentication unit 30 divided application execution unit 31 reception unit 32 confirmation unit 33 division unit 34 restoration unit 35 deletion unit

Claims (7)

In the information processing device,
A reception unit that receives a drag operation of a file onto a dedicated display area for arranging a file to be divided ,
By the drag operation, when the file stored in the cloud system is moved to the display area, a confirmation unit that performs connection confirmation by wireless communication with an external storage medium,
If that could connect by wireless communication with the external storage medium, the file is dragged Previous Symbol display area is divided into a plurality of divided files is a format that can not be each restore the contents by itself, When a connection by wireless communication with the external storage medium cannot be established, the division of the file is suppressed, and a division unit that suppresses the movement of the file from the cloud system to the information processing device ,
When divided into the divided files, a storage control unit that stores the plurality of divided files in a distributed manner in a different external storage medium physically independent of the information processing apparatus and the information processing apparatus ,
An information processing device comprising: In the information processing device,
A reception unit that receives a drag operation of a file onto a dedicated display area for arranging a file to be divided,
A division unit that divides the file dragged to the display area into a plurality of divided files whose contents cannot be restored by themselves.
A storage control unit that stores the plurality of divided files in a distributed manner in different external storage media physically independent of the information processing apparatus and the information processing apparatus;
A confirmation unit that executes connection confirmation by wireless communication with respect to the storage medium in which the divided file is stored, when a file restore operation is received;
When a connection can be established by wireless communication with the external storage medium, the divided file is acquired from the external storage medium, the file is restored, and wireless communication is performed with the external storage medium. A restoration unit that suppresses restoration of the file when connection cannot be made ,
Information processing apparatus, comprising a. Claim wherein the receiving unit, even when not connected with the external storage medium and wireless communication, the pre-Symbol display area, and displaying on the desktop screen of the display unit of the information processing apparatus The information processing device according to 1 or 2 . The information processing device
Accept the drag operation of the file to the display area for arranging the file to be divided ,
By the drag operation, when the file stored in the cloud system is moved to the display area, a connection check by wireless communication is executed with respect to an external storage medium,
If that could connect by wireless communication with the external storage medium, the file is dragged Previous Symbol display area is divided into a plurality of divided files is a format that can not be each restore the contents by itself, When the connection by wireless communication with the external storage medium cannot be established, the division of the file is suppressed, and the movement of the file from the cloud system to the information processing device is suppressed,
When divided into the divided files, the plurality of divided files are distributed and stored in a different external storage medium physically independent of the information processing apparatus and the information processing apparatus ,
A data management method characterized by executing processing. The information processing device
Accept the drag operation of the file to the display area for arranging the file to be divided,
The file dragged to the display area is divided into a plurality of divided files whose contents cannot be restored individually.
The external storage medium physically independent of the information processing device and the information processing device store the plurality of divided files in a distributed manner,
When a file restore operation is accepted, a connection confirmation by wireless communication is executed for the storage medium in which the divided file is stored,
When a connection can be established by wireless communication with the external storage medium, the divided file is acquired from the external storage medium, the file is restored, and wireless communication is performed with the external storage medium. If the connection cannot be established, the restoration of the above files will be suppressed,
A data management method characterized by executing processing. In the information processing device,
Accept the drag operation of the file to the display area for arranging the file to be divided ,
By the drag operation, when the file stored in the cloud system is moved to the display area, a connection check by wireless communication is executed with respect to an external storage medium,
If that could connect by wireless communication with the external storage medium, the file is dragged Previous Symbol display area is divided into a plurality of divided files is a format that can not be each restore the contents by itself, When the connection by wireless communication with the external storage medium cannot be established, the division of the file is suppressed, and the movement of the file from the cloud system to the information processing device is suppressed,
When divided into the divided files, the plurality of divided files are distributed and stored in a different external storage medium physically independent of the information processing apparatus and the information processing apparatus ,
A data management program characterized by executing processing. In the information processing device,
Accept the drag operation of the file to the display area for arranging the file to be divided,
The file dragged to the display area is divided into a plurality of divided files whose contents cannot be restored individually.
The external storage medium physically independent of the information processing device and the information processing device store the plurality of divided files in a distributed manner,
When a file restore operation is accepted, a connection confirmation by wireless communication is executed for the storage medium in which the divided file is stored,
When a connection can be established by wireless communication with the external storage medium, the divided file is acquired from the external storage medium, the file is restored, and wireless communication is performed with the external storage medium. If the connection cannot be established, the restoration of the above files will be suppressed,
A data management program characterized by executing processing.

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