JP2023079696A - Information processing device, program, and information processing system - Google Patents

Abstract

To provide an information processing device, a program, and an information processing system that reduce the frequency of access to an external storage device.SOLUTION: An information processing device divides an original file into first distributed files and second distributed files so as to be restorable. The information processing device includes: a generating unit that aggregates the plurality of second distributed files and generates a distributed original file indicating the plurality of second distributed files aggregated; a dividing unit that divides the distributed original file generated by the generating unit into third distributed files and fourth distributed files so as to be restorable; and a transmitting unit that transmits the fourth distributed files divided by the dividing unit to an external storage device.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD Embodiments of the present invention relate to an information processing apparatus, a program, and an information processing system.

2. Description of the Related Art In recent years, companies have taken measures to prevent information leakage of confidential information such as company-confidential information and customer information from information processing devices owned by companies. As a measure to prevent information leakage, for example, by linking an information processing device used by an employee and an external storage device, files are distributed to each of the information processing device and the external storage device, and the files are managed. There is a file management system (for example, Patent Document 1).

Japanese Patent No. 6705999

When using a file management system such as the one described above, access to the file management system may be temporarily disabled when accesses such as uploads and downloads from the information processing device to the external storage device become frequent. Therefore, when the external storage device cannot be accessed, the files distributed from the external storage device to the information processing device may not be downloaded.

Accordingly, one example of the problem to be solved by the present invention is to provide an information processing device, a program, and an information processing system that reduce the frequency of access to an external storage device.

A first aspect of the present invention is an information processing device that divides an original file into a first distributed file and a second distributed file so as to be restorable, in which a plurality of the second distributed files are aggregated, and the aggregated plurality of the second distributed files a generating unit for generating a distributed original file representing a distributed file; a dividing unit for dividing the distributed original file generated by the generating unit into a restorable third distributed file and a fourth distributed file; and a transmitting unit configured to transmit the fourth distributed file to an external storage device.

a setting unit configured to set a frequency with which the transmission unit transmits the fourth distributed file to the external storage device; The distributed file may be transmitted to the external storage device.

Also, the third distributed file and the fourth distributed file may include at least an identifier corresponding to the distributed original file.

In a second aspect of the present invention, a plurality of second distributed files are aggregated in a computer of an information processing device that divides an original file into a first distributed file and a second distributed file so as to be restorable; a process of generating a distributed original file indicating the second distributed file of, a process of dividing the distributed original file generated by the generating process into a restorable third distributed file and a fourth distributed file; and sending the divided fourth distributed file to an external storage device.

Furthermore, a third aspect of the present invention is an information processing system including the information processing apparatus of the first aspect described above.

According to the present invention, it is possible to reduce the frequency of access to the external storage device.

FIG. 1 is a diagram illustrating an example of a schematic configuration of an information processing system according to an embodiment; FIG. 2 is a block diagram of an example of a hardware configuration of the information processing apparatus according to the embodiment; 3 is a block diagram illustrating an example of a functional configuration of the information processing apparatus according to the embodiment; FIG. FIG. 4 is a diagram depicting an example of items for managing distributed files according to the embodiment; 5 is a flowchart illustrating an example of processing executed by the information processing apparatus according to the embodiment; FIG. 6 is a flowchart illustrating an example of processing executed by the information processing apparatus according to the embodiment; FIG. 7 is a flowchart illustrating an example of processing executed by the information processing apparatus according to the embodiment; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. The configurations of the embodiments described below and the actions and effects brought about by the configurations are merely examples, and are not limited to the following descriptions.

FIG. 1 is a diagram showing an example of a schematic configuration of an information processing system 1 according to an embodiment. The information processing system 1 according to the present embodiment is a system that processes files under management by file management processing. The information processing system 1 links the information processing device 2 and the external storage device 3 so that the files under management can be operated by the information processing device 2, but the information processing device 2 alone cannot acquire the original file. Work with files under control.

The information processing system 1 includes an information processing device 2 and an external storage device 3 connected to the information processing device 2 via an in-house network (not shown). In-house networks include wireless networks (also referred to as wireless) and wired networks (also referred to as wired).

The information processing device 2 is a device in which an operator (specifically, an employee of a company) performs file operations on original files of files under management. The information processing device 2 is a portable device that can be taken outside the company (that is, an environment that cannot be connected to an in-house network) for use. The information processing device 2 is, for example, a personal computer or the like. Note that the information processing device 2 may be any device as long as it can operate files, and may be, for example, a smart phone, a tablet personal computer, or the like.

The external storage device 3 is a non-volatile storage device that can be accessed from within the company (specifically, the company network) (in other words, accessible only under a limited environment). The external storage device 3 is managed, for example, in an environment such as a company or a data center where strict anti-crime measures and security measures are taken.

FIG. 2 is a block diagram showing an example of the hardware configuration of the information processing device 2 according to the embodiment. The information processing apparatus 2 illustrated here has the same configuration as a general-purpose computer, and includes a CPU (Central Processing Unit) 21, a RAM (Random Access Memory) 22, a ROM (Read Only Memory) 23, an auxiliary storage device 24, a user An I/F (Interface) 25 and an external I/F 26 are provided.

The CPU 21 performs predetermined arithmetic processing using the RAM 22 as a working area according to programs stored in the ROM 23 and the auxiliary storage device 24 . The auxiliary storage device 24 is a non-volatile memory and stores various data required for processing by the CPU 21 . The auxiliary storage device 24 is composed of, for example, an HDD (Hard Disc Drive), an SSD (Solid State Drive), or the like. The user I/F 25 is a device that enables transmission and reception of information between a user (company employee) and the information processing device 2, and may be a liquid crystal display, keyboard, or the like. The external I/F 26 is, for example, a device for establishing communication with another information processing apparatus 2 via a network according to a predetermined standard. Note that the configuration of the information processing device 2 is not limited to the above.

FIG. 3 is a block diagram showing an example of the functional configuration of the information processing device 2 according to the embodiment. The information processing apparatus 2 according to this embodiment includes a storage unit 201, a processing unit 202, an aggregating unit 203, a generating unit 204, a dividing unit 205, a determining unit 206, a transmitting unit 207, a receiving unit 208, a combining unit 209, and a setting unit 210. Prepare. These functional components 201 to 210 are formed by cooperation of hardware elements and software elements (programs stored in the ROM 23 and the auxiliary storage device 24, etc.) of the information processing device 2 illustrated in FIG. can be configured. Note that the functional configuration of the information processing device 2 is not limited to the above.

The storage unit 201 stores the content processed by the processing unit 202 . Further, the storage unit 201 stores the content aggregated by the aggregation unit 203 . Furthermore, the storage unit 201 stores the content generated by the generation unit 204 . The storage unit 201 stores the content divided by the dividing unit 205 . Also, the storage unit 201 stores the content transmitted by the transmission unit 207 . Furthermore, the storage unit 201 stores the content received by the receiving unit 208 . The storage unit 201 stores the content combined by the combining unit 209 . The storage unit 201 is implemented by, for example, the auxiliary storage device 24 included in the information processing device 2 .

The processing unit 202 executes file management processing. In the file management process, the processing unit 202 distributes the original file of the file management process (also referred to as the original file of the file under management) to the first distributed file and the second distributed file in a decodable (restorable) manner ( (also called division). The original file is also referred to as original data, original file, original data or original.

The processing unit 202 distributes the original file into the first distributed file and the second distributed file using, for example, the encryption method of the secret sharing method. Since the original files are distributed and generated, the sizes of the first distributed file and the second distributed file are smaller than the sizes of the original files.

The processing unit 202 causes the storage unit 201 to store the first distributed file and the external storage device 3 to store the original file. The processing unit 202 acquires the second distributed file combined by the combining unit 209, which will be described later. In this manner, the processing unit 202 implements management of the original file in a state in which the information processing apparatus 2 alone cannot acquire the original file.

Aggregating unit 203 aggregates a plurality of second distributed files distributed by processing unit 202 . Specifically, the aggregating unit 203 aggregates a plurality of second distributed files distributed by the processing unit 202 and to be stored in the external storage device 3 . The plurality of second distributed files aggregated by the aggregation unit 203 are stored in the RAM 22 or the like, for example. The frequency (also referred to as timing) at which the aggregating unit 203 aggregates the plurality of second distributed files is aggregating at a frequency (timing) determined by the setting unit 210 described later.

The generating unit 204 generates, from the plurality of second distributed files aggregated by the aggregating unit 203, a distributed original file indicating a file in which the plurality of second distributed files are integrated. For example, the generating unit 204 acquires from the RAM 22 a plurality of second distributed files aggregated by the aggregating unit 203, and generates a distributed original file representing a file in which the plurality of second distributed files are integrated. Also, the distributed original file generated by the generation unit 204 is stored in, for example, the storage unit 201 or the like. The distributed original file is also called distributed original data, distributed original file, distributed original data, or distributed original. The frequency (timing) of generating the distributed original file generated by the generation unit 204 is generated at the frequency (timing) determined by the setting unit 210, which will be described later. Note that the function of the generation unit 204 may be provided by the aggregating unit 203 .

The dividing unit 205 divides the distributed original file generated by the generating unit 204 into a third distributed file and a fourth distributed file so as to be restorable. The dividing unit 205 divides the distributed original file into a third distributed file and a fourth distributed file using, for example, an encryption method of the secret sharing method. Also, the third distributed file divided by the dividing unit 205 is stored in the storage unit 201, for example. Since the distributed original file is divided and generated, the sizes of the third distributed file and the fourth distributed file are smaller than the size of the distributed original file. Note that the processing unit 202 may have the functions that the dividing unit 205 has.

Here, the third distributed file and the fourth distributed file will be explained using FIG. FIG. 4 is an example of lists of the third distributed file and the fourth distributed file divided by the dividing unit 205 .

The third distributed file and the fourth distributed file are managed by items of record ID, file division ID, storage destination, and data capacity for each file. A record ID is a single ID that identifies the third distributed file and the fourth distributed file. The file split ID indicates the ID of the original distributed file before splitting the third distributed file and the fourth distributed file. That is, the third distributed file and the fourth distributed file include at least an identifier corresponding to the distributed original file.

The storage destination is the location where the third distributed file and the fourth distributed file were stored in the information processing device 2 . For example, the storage destination is a folder within the information processing device 2 . The data capacity indicates the size of the data of the third distributed file and the fourth distributed file. Items for managing the third distributed file and the fourth distributed file are not limited to these.

Return to FIG. The determination unit 206 determines whether or not a certain period of time has elapsed after the transmission unit 207, which will be described later, has completed transmitting the fourth distributed file divided by the division unit 205 to the external storage device 3. FIG. Specifically, based on the frequency (timing) of transmission to the external storage device 3 set by the setting unit 210, the determination unit 206 determines whether the transmission unit 207, which will be described later, can transmit the fourth distributed file to the external storage device 3. determine whether or not Thereby, the information processing device 2 can reduce the frequency of accessing the external storage device 3 .

The transmitting unit 207 transmits the fourth distributed file divided by the dividing unit 205 to the external storage device 3 . The transmission unit 207 transmits a plurality of fourth distributed files to the external storage device 3 according to the transmission frequency set by the setting unit 210, which will be described later.

Also, the transmission unit 207 transmits the fourth distributed file based on the user's operation. Specifically, the transmission unit 207 cooperates with the user I/F 25 to transmit the fourth distributed file. For example, the transmission unit 207 transmits the fourth distributed file before the information processing device 2 shuts down. Note that the processing unit 202 may have the functions that the transmission unit 207 has.

The receiving unit 208 receives the fourth distributed file based on the user's operation. Specifically, the receiving unit 208 cooperates with the user I/F 25 to receive the fourth distributed file. For example, the receiving unit 208 receives the fourth distributed file after the information processing device 2 is activated. Also, for example, the reception unit 208 receives the fourth reception file at the timing when the user operates the file used. Note that the processing unit 202 may have the functions that the receiving unit 208 has.

The combining unit 209 combines the third distributed file stored in the storage unit 201 and the fourth distributed file received by the receiving unit 208 . Specifically, when the receiving unit 208 receives the fourth distributed file, the combining unit 209 combines the received fourth distributed file with the third distributed file stored in the storage unit 201 .

For example, the combining unit 209 collates the division ID included in the fourth distributed file received by the receiving unit 208 with the division ID included in the third distributed file stored in the storage unit 201, and Combine the third distributed file and the fourth distributed file based on . The result of combining the third distributed file and the fourth distributed file by the combining unit 209 is a distributed original file. Note that the processing unit 202 may have the functions that the combining unit 209 has.

The setting unit 210 sets the frequency (timing) of aggregating the plurality of second distributed files to be aggregated by the aggregating unit 203 . The setting unit 210 also sets the frequency (timing) of generating the distributed original file generated by the generating unit 204 . Furthermore, the setting unit 210 sets the frequency (timing) with which the transmission unit 207 transmits the fourth distributed file to the external storage device 3 . The setting unit 210 also sets the frequency (timing) with which the receiving unit 208 receives the fourth distributed file from the external storage device 3 . Note that the content set by the setting unit 210 is not limited to this. For example, the file size for generating the distributed original file generated by the generation unit 204 may be set.

Next, processing executed by the information processing apparatus 2 according to the present embodiment will be described with reference to FIGS. 5, 6, and 7. FIG. 5, 6, and 7 are flowcharts showing an example of processing in the information processing device 2 according to this embodiment. Here, the information processing device 2 is in a state where the initial settings for connecting to the external storage device 3 have been completed and the device is connected to the company network.

First, in FIG. 5, it is assumed that the user is using the information processing apparatus 2 and the original file used by the user is updated.

The processing unit 202 decodably divides the original file into a first distributed file and a second distributed file (step S501). Subsequently, the aggregation unit 203 aggregates the plurality of second distributed files distributed by the processing unit 202 (step S502).

Subsequently, the generating unit 204 generates a distributed original file representing a file in which the plurality of second distributed files are integrated into one from the plurality of second distributed files aggregated by the aggregating unit 203 (step S503). Subsequently, the dividing unit 205 divides the distributed original file generated by the generating unit 204 into a third distributed file and a fourth distributed file so as to be restorable (step S504).

Subsequently, the determination unit 206 determines whether or not a certain period of time has elapsed after the transmission unit 207 transmitted the fourth distributed file to the external storage device 3 (step S505). Here, if the determination unit 206 determines that the predetermined time has not passed (step S505: No), step S505 is continued until the predetermined time has passed. On the other hand, if the determination unit 206 determines that the predetermined time has passed (step S505: Yes), the process proceeds to step S506.

Subsequently, the transmitting unit 207 transmits the fourth distributed file divided by the dividing unit 205 to the external storage device 3 (step S506). When the transmission process is completed, the process returns to step S501 and continues this process in the background while the information processing device 2 is activated.

Next, in FIG. 6, it is assumed that the information processing apparatus 2 starts from a state in which an original file used by the user is updated in a state in which an end operation such as shutdown or restart is received.

The processing unit 202 decodably divides the original file into a first distributed file and a second distributed file (step S601). Subsequently, the aggregation unit 203 aggregates the plurality of second distributed files distributed by the processing unit 202 (step S602).

Subsequently, the generating unit 204 generates distributed original files indicating the plurality of second distributed files aggregated by the aggregating unit 203 (step S603). Subsequently, the dividing unit 205 divides the distributed original file generated by the generating unit 204 into a third distributed file and a fourth distributed file so as to be restorable (step S604).

Subsequently, the transmitting unit 207 transmits the fourth distributed file divided by the dividing unit 205 to the external storage device 3 (step S605). When the transmission process is completed, this process ends.

Next, in FIG. 7, it is assumed that the user starts up the information processing device 2, completes the initial settings for connecting to the external storage device 3, and is connected to the company network.

The receiving unit 208 receives the fourth distributed file from the external storage device 3 (step S701). Subsequently, the combining unit 209 combines the fourth distributed file received by the receiving unit 208 and the third distributed file stored in the storage unit 201 (step S702). The file combined by the combining unit 209 is the original distributed file.

Subsequently, the processing unit 202 combines the second distributed file and the first distributed file included in the original distributed file combined by the combining unit 209, and decodes the original file (step S703). When the processing unit 202 decodes the original file, the information processing device 2 terminates this process.

As described above, the information processing device 2 according to one aspect of the present invention aggregates a plurality of second distributed files and generates a single distributed original file. After that, the original distributed file is divided into a third distributed file and a fourth distributed file, and the fourth distributed file is sent to the external storage device 3 . Thus, according to the present embodiment, by aggregating a plurality of second distributed files and generating a single distributed original file, each second distributed file can be transmitted to the external storage device 3. Therefore, the information processing device 2 can reduce the frequency of access to the external storage device 3 .

Further, in the above-described embodiment, the transmission unit 207 sets the frequency with which the fourth distributed file is transmitted to the external storage device 3, and the transmission unit 207 transmits the fourth distributed file to the external storage device based on the set frequency. Send to 3. Thereby, the fourth distributed file can be transmitted to the external storage device 3 based on the frequency set by the information processing device 2 .

Further, in the above-described embodiments, the third distributed file and the fourth distributed file at least include identifiers corresponding to the distributed original files. Thereby, the information processing device 2 can combine the distributed files based on the identifiers corresponding to the distributed original files.

A program that implements the above functions may be provided in a state stored in advance in a memory device mounted on the CPU 21, for example, but is not limited to this. The program may be provided in a state stored in an appropriate storage medium such as a CD-ROM, or may be provided via a computer network such as the Internet.

It should be noted that the above-described embodiment can be appropriately modified and implemented by changing a part of the configuration of the above-described device. Therefore, hereinafter, some modifications of the above-described embodiment will be described as other embodiments. In the following description, points different from the above-described embodiment will be mainly described, and detailed description of points common to the contents already described will be omitted. Further, the modifications described below may be implemented individually or in combination as appropriate.

(Modification 1)
In the embodiment described above, the external storage device 3 connected to the information processing device 2 is connected to the information processing device 2 via an in-house network, but the present invention is not limited to this. For example, the external storage device 3 may be a portable terminal device. The portable terminal device is, for example, a non-volatile storage device that can be accessed outside the company, and is a smart phone.

The portable terminal device may be a terminal having a storage device. For example, the form of the terminal may be a USB (Universal Serial Bus) memory, a tablet personal computer, a digital camera, a portable music player, a mouse, a pen, or headphones. or a card-type storage medium (for example, an IC (Integrated Circuit) card) or the like.

(Modification 2)
In the above-described embodiment, the functions of the information processing apparatus 2 include the aggregation unit 203, the generation unit 204, the division unit 205, the determination unit 206, the transmission unit 207, the reception unit 208, the combination unit 209, and the setting unit 210. However, it is not limited to this. For example, the aggregating unit 203, the generating unit 204, the dividing unit 205, the determining unit 206, the transmitting unit 207, the receiving unit 208, the combining unit 209, and the setting unit 210 are other information processing devices connected to the information processing device 2. can be Another information processing device is, for example, an in-house local server.

Although the embodiments and modifications of the present invention have been described above, the embodiments and modifications are presented as examples and are not intended to limit the scope of the invention. These novel embodiments and modifications can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

1... Information processing system, 2... Information processing device, 3... External storage device,
201 storage unit 202 processing unit 203 aggregation unit 204 generation unit 205 division unit 206 determination unit 207 transmission unit 208 reception unit 209 combination unit 210 setting unit

Claims (5)

In an information processing device that divides an original file into a first distributed file and a second distributed file so as to be restorable,
a generating unit that aggregates the plurality of second distributed files and creates a distributed original file that indicates the aggregated plurality of second distributed files;
a dividing unit that divides the distributed original file generated by the generating unit into a restorable third distributed file and a fourth distributed file;
a transmitting unit configured to transmit the fourth distributed file divided by the dividing unit to an external storage device;
Information processing device. a setting unit that sets the frequency with which the transmission unit transmits the fourth distributed file to the external storage device;
wherein the transmission unit transmits the fourth distributed file to the external storage device based on the frequency set by the setting unit;
The information processing device according to claim 1 . wherein the third distributed file and the fourth distributed file include at least an identifier corresponding to the distributed original file;
The information processing apparatus according to claim 1 or 2. In a computer of an information processing device that divides an original file into a first distributed file and a second distributed file so as to be restorable,
a process of aggregating the plurality of second distributed files and generating a distributed original file indicating the aggregated plurality of second distributed files;
a process of dividing the distributed original file generated by the generating process into a restorable third distributed file and a fourth distributed file;
a process of transmitting the fourth distributed file divided by the dividing process to an external storage device;
program to run. An information processing system comprising the information processing device according to claim 1 .

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