KR20160113071A - Method for storing a file by using a plurality of cloud storage and apparatus thereof - Google Patents

Abstract

According to an embodiment, disclosed is a device which comprises: a control unit configured to partition files stored in the device to generate a plurality of file pieces and configured to determine cloud storages for storing each of the plurality of file pieces to correspond to each of the plurality of file pieces among a plurality of cloud storages; and a communication unit configured to request the determined cloud storages to store each of the plurality of file pieces.

Description

TECHNICAL FIELD [0001] The present invention relates to a file storage method using a plurality of cloud storages,

The present invention relates to a method and a device for dividing a file into a plurality of file fragments and distributing a plurality of fragmented file fragments to a plurality of cloud storage devices.

As network technology advances, data stored on desktops, laptops, or handheld devices is stored in cloud storage on the Internet, and users can download data from cloud storage anytime, anywhere using their own accounts .

However, cloud storage can be accessed by a large number of users, potentially jeopardizing user data. In addition, the user's account information may be exposed to others, and personal data stored in the cloud storage may be exposed to others.

The present invention provides various embodiments for dividing a file into a plurality of file fragments, distributing the files to a plurality of cloud storages, and receiving a plurality of stored file fragments to regenerate the files.

As a technical means for achieving the above technical object, a first aspect of the present disclosure is a method for creating a plurality of file fragments by dividing a file stored in a device, and, among a plurality of registered cloud storage devices, A controller for determining cloud storages to store each of the plurality of file fragments in response to each of the fragments, and a communication unit for requesting the determined cloud storages to store each of the plurality of file fragments.

In addition, the file stored in the device may be a file received from one of a plurality of cloud storages.

Further, the control unit determines a plurality of cloud storages for storing the first file fragments corresponding to the first file fragments among the plurality of file fragments, and the communication unit transmits the first file fragments to the plurality of cloud storages for storing the first file fragments, Respectively.

The communication unit may request that at least one of the plurality of cloud storages store file partition information including identification information of a plurality of file fragments and identification information of cloud storages in which a plurality of file fragments are stored.

The control unit may generate a plurality of file fragments by encrypting the file based on the encryption key, dividing the encrypted file, and storing the encryption key in the device or in at least one of the plurality of cloud storages.

The control unit may divide the file into a plurality of file fragments, encrypt at least one piece of the plurality of file fragments based on the encryption key, store the encryption key in the device, or store at least one of the plurality of cloud storage And the communication unit may request the cloud storage corresponding to each file fragment to store a plurality of pieces of the encrypted file at least one piece.

Also, the control unit may delete the stored file as each of the plurality of file fragments is stored in the determined cloud storages.

In addition, the file stored in the device is a file stored in one of the plurality of cloud storage devices and the device, and the communication unit can request the cloud storage where the file is stored to delete the file.

The second aspect of the present disclosure also includes a control unit for determining cloud storages in which each of a plurality of file fragments is stored corresponding to each of a plurality of file fragments divided from one file, And the control unit can provide a device that combines a plurality of received file fragments to generate a file and executes the generated file.

Also, the communication unit may receive, from at least one of the plurality of cloud storages, file partition information including identification information of a plurality of file fragments and identification information of cloud storages in which a plurality of file fragments are stored, Based on the information, each of the plurality of file fragments can determine stored cloud storage.

Also, the first file fragment of the plurality of file fragments is a fragment of a file that is redundantly stored in two or more of the plurality of cloud storages, and the control section selects one of the two or more cloud storages in correspondence with the first file fragment, , The first file fragment can be received from the selected cloud storage.

Also, the second file fragment of the plurality of file fragments is a fragment of a file that is redundantly stored in two or more of the plurality of cloud storages, and the communication section can simultaneously receive different portions of the second file fragment from the two or more cloud storages .

The plurality of file fragments are encrypted file fragments corresponding to each of the plurality of file fragments after the file is divided, and the communication unit may transmit a decryption key for decrypting the plurality of encrypted fragments to the device or at least one of the plurality of cloud servers And the control unit can decrypt the plurality of received file fragments based on the received decryption key and combine the decrypted file fragments to generate a file.

The communication unit may receive a decryption key for decrypting the encrypted file from at least one of the device or the plurality of cloud servers, and the control unit may decrypt the encrypted decrypted file, Based on the key, a plurality of received pieces of file can be combined to generate a file, and the generated file can be decoded.

According to a third aspect of the present disclosure, there is provided a computer-readable storage medium storing a program for causing a computer to execute the steps of: dividing a file stored in a device into a plurality of file fragments; Determining cloud storage to store each piece, and requesting the determined cloud storage to store each of the plurality of file fragments.

In addition, the file stored in the device may be a file received from one of a plurality of cloud storages.

Determining cloud storage to store each of the plurality of file fragments includes determining a plurality of cloud storage to store a first file fragment corresponding to a first file fragment of the plurality of file fragments, Requesting storage to store each of the plurality of file fragments may include requesting storage of a first file fragment to a plurality of cloud storages for storing the first file fragment.

The file storage method may further include requesting that at least one of the plurality of cloud storages store file partition information including identification information of a plurality of file fragments and identification information of cloud storages in which a plurality of file fragments are stored can do.

The step of generating a plurality of file fragments by dividing a file stored in the device includes the steps of encrypting the file based on the encryption key, generating a plurality of file fragments by dividing the encrypted file, storing the encryption key in the device Or storing it in at least one of a plurality of cloud storages.

The step of dividing the file stored in the device and generating a plurality of file fragments may include the steps of generating a plurality of file fragments by dividing the file and encrypting at least one piece of the plurality of file fragments And storing the encryption key in the device or in at least one of the plurality of cloud storages, the step of requesting the determined cloud storage to store each of the plurality of file fragments comprises: And requesting corresponding cloud storages to store each of the plurality of file fragments encrypted by the at least one fragment.

The file storage method may further include deleting the stored file as each of the plurality of file fragments is respectively stored in the determined cloud storages.

In addition, the file stored in the device may be one of a plurality of cloud storages and a file stored together in the device, and the file storage method may further include a step of requesting the cloud storage in which the file is stored to delete the file.

The method further comprises the steps of: the device determining cloud storages in which each of the plurality of file fragments is stored corresponding to each of the plurality of file fragments segmented from one file; receiving each of the plurality of file fragments from the determined cloud storages, , Combining the received plurality of file fragments to generate a file, and executing the generated file.

The step of determining cloud storages storing the plurality of file fragments in correspondence with each of the plurality of file fragments divided from the file may include the step of storing the identification information of the plurality of file fragments and the identification information of the cloud storages Receiving, from at least one of the plurality of cloud storages, file division information including a plurality of file fragments, each of the plurality of file fragments corresponding to each of the plurality of file fragments divided from the file based on the received file division information, And < / RTI >

In addition, the first file fragment of the plurality of file fragments is a fragment of a file that is redundantly stored in two or more of the plurality of cloud storages, receiving each of the plurality of file fragments from the determined cloud storages, Selecting one of the two or more cloud storages, and receiving a first file fragment from the selected cloud storage.

The method of claim 1, wherein the second file fragment of the plurality of file fragments is a fragment of a file that is redundantly stored in two or more of the plurality of cloud storages, and wherein each of the plurality of file fragments, from each of the determined cloud storages, Lt; RTI ID = 0.0 > of the second file fragments. ≪ / RTI >

The step of generating a file by combining a plurality of received file fragments is a step of decrypting a plurality of encrypted fragments of a file, Receiving a decryption key for at least one of a device or a plurality of cloud servers, decrypting a plurality of received file fragments, and combining the decrypted fragments to generate a file.

The step of generating a file by combining a plurality of received pieces of the file is a step of transmitting a decryption key for decrypting the encrypted file to the device or a plurality of cloud servers Generating a file by combining a plurality of received pieces of file based on the received decryption key, and decrypting the generated file.

1 is a diagram illustrating a method in which a device distributes files to a plurality of cloud storages according to an embodiment of the present invention.
2 is a flowchart illustrating a method in which a device divides a file into a plurality of file fragments and distributes the fragmented file fragments to cloud storage according to an embodiment of the present invention.
3 is a flow diagram illustrating a method by which a device distributes and stores files in accordance with another embodiment of the present invention.
4 is a flowchart illustrating a method for a device to receive and execute a file divided into a plurality of file fragments from a cloud storage according to an embodiment of the present invention.
5 is a flowchart illustrating a method for a device to receive a plurality of file fragments from a cloud storage and to combine received plurality of file fragments to execute a file according to another embodiment of the present invention.
6 is a diagram illustrating information on a plurality of cloud storages stored in a device, according to an embodiment of the present invention.
7 is a diagram illustrating file partitioning information according to an embodiment of the present invention.
8 is a diagram illustrating a method for a device to receive a piece of file from a cloud storage based on file partitioning information, in accordance with an embodiment of the present invention.
9A is a diagram for explaining a method for a device to receive file partition information from a cloud storage, according to an embodiment of the present invention.
9B is a flow diagram illustrating a method for a device to receive file segmentation information from a cloud storage and receive fragmented files from cloud storage based on file segmentation information, in accordance with an embodiment of the present invention.
9C is a diagram illustrating a method for a user's other device to receive file segmentation information from a cloud storage and receive a piece of file from a cloud storage based on the received file segmentation information, according to an embodiment of the present invention.
10 is a diagram illustrating a method in which a device receives file partition information from an external server and receives a plurality of file fragments from the cloud storage based on the file partition information, according to an embodiment of the present invention.
Figures 11A through 11E illustrate how a device displays a list of files as a user's files are distributed and stored, according to one embodiment of the present invention.
12A and 12B are diagrams for explaining a method of displaying a distributedly stored file according to an embodiment of the present invention in which a device divides a file stored only in a device and distributes the file to a plurality of cloud storage devices.
13 is a diagram for explaining a method of providing a user interface for selecting a cloud storage device in which a device distributes files, according to an embodiment of the present invention.
14A and 14B are diagrams for explaining a method in which a device duplicates the same file fragments in a plurality of cloud storages according to an embodiment of the present invention.
FIG. 14C is a diagram showing file fragments stored in a plurality of cloud storages according to an embodiment of the present invention, in which file fragments corresponding to a plurality of files are redundantly stored in a plurality of cloud storages.
14D is a diagram illustrating a method of receiving a piece of a file from a plurality of cloud storages when one of the plurality of cloud storages is not operated according to an embodiment of the present invention.
FIG. 15 is a diagram for explaining a method in which a device simultaneously receives pieces of the same file from a plurality of cloud storages, as the same file fragments are redundantly stored in a plurality of cloud storages, according to an embodiment of the present invention.
16A and 16B are diagrams for explaining a method of encrypting a file by a device according to an embodiment of the present invention.
17A and 17B are diagrams for explaining how a device encrypts a file according to another embodiment of the present invention.
18A and 18B are diagrams for explaining how a device receives information for encryption from a user to encrypt a file, according to an embodiment of the present invention.
19 is a diagram showing a module in a device that performs a function of distributing and storing files according to an embodiment of the present invention.
20 is a diagram for explaining a method in which a device divides a file and distributes the file to a plurality of cloud storages according to an embodiment of the present invention.
Figure 21 shows a block diagram for a device, in accordance with an embodiment of the present invention.
22 is a block diagram showing the configuration of a device according to another embodiment of the present invention.
Figure 23 shows a block diagram for cloud storage, in accordance with an embodiment of the present invention.

The terms used in this specification will be briefly described and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements as well, without departing from the spirit or scope of the present invention. Also, the terms "part," " module, "and the like described in the specification mean units for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software .

Throughout the specification, " distributed storage " may mean that a file is divided into a plurality of file fragments, and the fragmented file fragments are distributed and stored in a plurality of cloud servers.

Throughout the specification, " cloud storage " may refer to a device that stores a user's file. The cloud storage may be composed of one storage device or a plurality of storage devices.

In addition, cloud storage may be operated by a service provider that provides file storage services to users. For example, a service provider may provide paid or free file storage space to subscribed users of the service. In addition, the cloud storage can transmit a user's file to the user's device via the network or receive the user's file from the user's device.

As a user subscribes to a service provided by a service provider, the user can register his or her own account in the cloud storage. The cloud storage can store the user's files based on the account of the user registered in the cloud storage. The cloud storage may also transfer the stored user's file to the user's device or to the user's sharer's device based on the user's account.

In addition, cloud storage can restrict access by another user to a user's file according to the access policy of the user's file set by the user. For example, cloud storage can allow users access to files only to users that the user has granted access to. In addition, cloud storage may allow all users access to the user's files, depending on the user's configuration.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

1 is a diagram illustrating a method in which a device 100 distributes files to a plurality of cloud storages 1000 according to an embodiment of the present invention.

Referring to FIG. 1, the device 100 divides a file 50 into a plurality of file pieces 50_1, 50_2, and 50_3, and divides the plurality of divided file pieces 50_1, 50_2, and 50_3 into a plurality of cloud storage 1000a, 1000b, 1000c).

For example, the device 100 may receive user input requesting to distribute the file 50 in a distributed manner. Upon receiving a user input requesting to distribute and store the file 50, the device 100 divides the file 50 to generate a plurality of file fragments 50_1, 50_2, and 50_3, It is possible to determine the cloud storage 1000 to store each of the plurality of file fragments corresponding to each of the plurality of file fragments among the plurality of cloud storage devices 1000 registered with the cloud storage 1000. [

By determining the cloud storage 1000 to store the file fragments, the device 100 can request the determined cloud storage 1000 to store each of the plurality of file fragments. For example, the device 100 may request the first cloud storage 1000a to store "file fragment 1" 50_1 corresponding to the ID of the user registered in the first cloud storage 1000a. The cloud storage 1000 may store each file fragment corresponding to the identification information of the received user.

The device 100 may also store the file partition information in the device 100 or in the cloud storage 1000. The file partition information may include identification information of a plurality of file fragments and identification information of the cloud storage 1000 in which a plurality of file fragments are stored.

The device 100 also receives a plurality of file fragments 50_1, 50_2 and 50_3 from the plurality of cloud storages 1000 and merges the received plurality of file fragments 50_1, 50_2 and 50_3, Lt; RTI ID = 0.0 > 50 < / RTI >

For example, the device 100 may receive a user input that selects the identification information 52 of a file divided into a plurality of file fragments. When the selected file is divided into a plurality of file fragments and distributed to the plurality of cloud storages 1000, the device 100 generates, based on the file division information, a plurality of file fragments Can determine the stored cloud storage (s) 1000. The device 100 can request and receive each of the plurality of file fragments from the cloud storages 1000 corresponding to each of the plurality of file fragments. The device 100 may combine the received plurality of file fragments 50_1, 50_2 and 50_3 to generate the file 50 and execute the generated file 50. [

2 is a flow chart illustrating a method in which a device 100 divides a file into a plurality of file fragments and distributes the fragmented file fragments to the cloud storage 1000, according to an embodiment of the present invention.

In step S210, the device 100 may divide the file stored in the device 100 to generate a plurality of file fragments.

The file stored in the device 100 may be a file stored in the device 100 in advance. In addition, the file stored in the device 100 may be a file received from the cloud storage 1000.

The device 100 can encrypt a file and generate a plurality of file fragments by dividing the encrypted file. The device 100 may also divide the file into a plurality of file fragments and may encrypt at least one fragment of the plurality of file fragments.

In step S220, the device 100 determines the cloud storage devices 1000 in which to store the plurality of file fragments, corresponding to each of the plurality of file fragments among the plurality of cloud storage devices 1000 in which the user of the device 100 is registered .

The device 100 may determine the cloud storage 1000 to store each of the plurality of file fragments based on the storage capacity of the cloud storage 1000, the security level set in the file, or a user input for selecting the cloud storage 1000 .

In addition, the device 100 may determine one cloud storage 1000 to store the file fragments, corresponding to one file fragment of the plurality of file fragments. In addition, the device 100 may determine a plurality of cloud storages 1000 to store the file fragments, corresponding to one file fragment of the plurality of file fragments.

In step S230, the device 100 may request the determined cloud storage 1000 to store each of the plurality of file fragments.

For example, based on the address information of the first cloud storage 1000a, the device 100 can store the first file fragment corresponding to the identification information of the user registered in the first cloud storage 1000a, And can request the storage 1000a.

In this case, the device 100 may also transmit the location in which the first file fragment is to be stored in the first cloud storage 1000a. For example, the location where the first file fragment is to be stored in the first cloud storage 1000a may be a folder in which the original of the file is stored, a default folder, a root folder, and the like. In addition, the device 100 may receive a user input for selecting a folder in which the first file fragment is to be stored, and may transmit the identification information of the selected folder to the first cloud storage 1000a as a folder in which the first file fragment is to be stored .

Device 100 can sequentially store pieces of files in a plurality of cloud storage 1000s. For example, the device 100 may store a first file fragment in the first cloud storage 1000a and then a second file fragment in the second cloud storage 1000a. In addition, the device 100 may simultaneously store pieces of files in a plurality of cloud storages 1000. For example, the device 100 may simultaneously maintain a session with each cloud storage 1000 and simultaneously store pieces of the file in each cloud storage 1000.

In addition, the device 100 may store, in at least one of the plurality of cloud storages 1000, file division information including identification information of a plurality of file fragments and identification information of the cloud storage 1000 for storing a plurality of file fragments .

In addition, if the file stored in the device 100 is a file stored in one of the plurality of cloud storage devices 1000 and the device 100, the device 100 may delete the file to the cloud storage 1000 storing the file Can be requested.

As each of the plurality of file fragments is stored in each determined cloud storage 1000, the device 100 may move the file into a predetermined folder for distributed stored files in the device.

Figure 3 is a flow diagram illustrating a method by which a device 100 distributes files in accordance with another embodiment of the present invention.

In step S310, the device 100 may divide the file stored in the device 100 to generate a plurality of file fragments.

The file stored in the device 100 may be a file stored in the device 100 in advance. Upon receiving a user input for selecting one of the files stored in the device 100 and distributing and storing the selected file, the device 100 may divide the selected file into a plurality of file fragments.

In addition, the file stored in the device 100 may be a file received from the cloud storage 1000. For example, the device 100 may store only metadata of a file excluding content data of a user's file stored in the cloud storage 1000. The metadata of the file may include a list of files. The device 100 may request and receive the content data of the selected file from the cloud storage 1000 as the user inputs input to select one of the list of files and user input to distribute the selected file. Upon receiving the content data of the selected file from the cloud storage 1000, the device 100 may divide the content data of the file received from the cloud storage 1000 to generate a plurality of file fragments.

The device 100 may divide the file into a plurality of file fragments based on the number of the cloud storages 1000 to which the user of the device 100 is registered. For example, the device 100 may divide a file into as many pieces of file as the number of cloud storage devices 1000 to which the user of the device 100 is registered. The device 100 may also divide the file into predetermined sizes.

The device 100 can encrypt a file and generate a plurality of file fragments by dividing the encrypted file. In addition, the device 100 may split the file to generate a plurality of file fragments, and may encrypt at least one fragment of the plurality of file fragments.

In step S315, the device 100 determines the cloud storage devices 1000 to store each of the plurality of file fragments corresponding to each of the plurality of file fragments among the plurality of cloud storage devices 1000 in which the user of the device 100 is registered .

The device 100 may provide a user interface for selecting the cloud storage 1000 to store the file fragments and may determine the cloud storage 1000 so that the files are distributedly stored only in the selected cloud storage 1000. [

In addition, the device 100 receives information on the capacity of the storage space allocated to the user from the cloud storage 1000, and stores the files in the cloud storage 1000 so that the remaining capacity is equal to or greater than the reference ) May be determined.

In addition, the device 100 can determine the cloud storage 1000 based on the security level set in the file, so that the higher the security level, the more the files are distributed and stored in the plurality of cloud storages 1000 as much as possible.

In addition, the device 100 may determine one cloud storage 1000 to store the file fragments, corresponding to one file fragment of the plurality of file fragments. In addition, the device 100 may determine a plurality of cloud storages 1000 to store the file fragments, corresponding to one file fragment of the plurality of file fragments.

In step S320, the device 100 may request the first cloud storage 1000a to store the first file fragment corresponding to the identification information of the user registered in the first cloud storage 1000a.

The device 100 may store address information of the first cloud storage 1000a. In addition, the device 100 may store account information of a user registered in the first cloud storage 1000a. The user's account information may include identification information and password information of the user registered in the first cloud storage 1000a. In addition, the user account information may include access information issued to the device 100 by the first cloud storage 1000a authenticating the user based on the user identification information and the password received from the device 100 . In addition, the user's account information may include session maintenance information for maintaining a session between the device 100 and the first cloud storage 1000a.

The device 100 uses the address information of the first cloud storage 1000a to store the first file fragment corresponding to the identification information of the user registered in the first cloud storage 1000a in the first cloud storage 1000a, .

The file fragment storage request may include account information of a user registered in the first cloud storage 1000a. In addition, the file fragment storage request may include identification information of a folder in which a file fragment is to be stored. The file fragment storage request may also include information indicating that the file being transferred is a file fragment.

In step S325, the first cloud storage 1000a may store the first file fragment corresponding to the identification information of the user registered in the first cloud storage 1000a.

The first cloud storage 1000a may determine whether the user is authorized to store the file on the first cloud storage 1000a based on the account information of the user received from the device 100. [

If the user is authorized to store files for the first cloud storage 1000a, the first cloud storage 1000a may store the first file fragments received from the device 100 corresponding to the user's identification information.

When the identification information of the folder in which the first file fragment is to be stored is received from the device 100, the first cloud storage 1000a determines the position of the folder for storing the first file fragment, based on the identification information of the folder And store the first file fragment in the determined folder.

In addition, when receiving information indicating that the first file fragment received from the device 100 is a file fragment, the first cloud storage 1000a may store the first file fragment in the predetermined file fragment storage folder.

In step S330, the device 100 may request the second cloud storage 1000b to store the second file fragment corresponding to the identification information of the user registered in the second cloud storage 1000b.

The device 100 may store address information of the second cloud storage 1000b. In addition, the device 100 may store account information of a user registered in the second cloud storage 1000b.

The device 100 notifies the second cloud storage 1000b to store the second file fragment corresponding to the identification information of the user registered in the second cloud storage 1000b based on the address information of the second cloud storage 1000b. .

In step S335, the second cloud storage 1000b may store the second file fragment corresponding to the identification information of the user registered in the second cloud storage 1000b.

The second cloud storage 1000b may determine whether the user is authorized to store the file on the second cloud storage 1000b based on the account information of the user received from the device 100. [

If the user is authorized to store a file for the second cloud storage 1000b, the second cloud storage 1000b may store the second piece of the file received from the device 100 in association with the identification information of the user.

In step S340, the device 100 may request the third cloud storage 1000c to store the third file fragment corresponding to the identification information of the user registered in the third cloud storage 1000c.

The device 100 may store address information of the third cloud storage 1000c. In addition, the device 100 may store account information of a user registered in the third cloud storage 1000c.

The device 100 notifies the third cloud storage 1000c that the third file fragment is to be stored in correspondence with the identification information of the user registered in the third cloud storage 1000c based on the address information of the third cloud storage 1000c. .

In step S345, the third cloud storage 1000c may store the third file fragment corresponding to the identification information of the user registered in the third cloud storage 1000c.

The third cloud storage 1000c may determine whether the user is authorized to store the file on the third cloud storage 1000c based on the account information of the user received from the device 100. [

If the user is authorized to store files for the third cloud storage 1000c, the third cloud storage 1000c may store the third file fragments received from the device 100 corresponding to the user's identification information.

In step S350, the device 100 may generate file partition information.

The file partition information may include identification information of the first to third file fragments and identification information of the cloud storage 1000 that stores the first to third file fragments. The file division information includes identification information of the file, directory information of the device 100 where the file is located, file size information, size information of each file fragment, location information of each file fragment in the file, And the like.

The device 100 may store the file division information in the form of a file. The file in which the file division information is stored may be referred to as a file division information file. According to the embodiment, file division information for all files distributed and stored in one file division information file can be recorded. Also, according to the embodiment, file division information for one file may be recorded in one file division information file.

The device 100 may store the file partition information file in the device 100. In addition, the device 100 may request at least one of the plurality of cloud storages 1000 to store the file division information file corresponding to the identification information of the user registered in the cloud storage 1000.

According to an embodiment, the device 100 may store the file partition information in the form of a database. The database in which the file division information is stored may be referred to as a file division information database.

For example, the device 100 may create a file partition information database within the device 100. In addition, the device 100 can create a file division information database in correspondence with the identification information of the user to the external server. The device 100 may also request the cloud storage 1000 to create a file partition information database in response to the identification information of the user registered in the cloud storage 1000. [ The device 100 may store the file division information for one file in correspondence with the identification information of one file in the generated database.

In addition, if the file stored in the device 100 is a file stored in one of the plurality of cloud storage devices 1000 and the device 100, the device 100 may delete the file to the cloud storage 1000 storing the file Can be requested.

As each of the plurality of file fragments is each stored in the cloud storage 1000, the device 100 may move the file into a predetermined folder for distributed stored files in the device.

In addition, as each of the plurality of file fragments is stored in the cloud storage devices 1000, the device 100 can store information indicating that the files are stored in a plurality of cloud servers as metadata of the files.

4 is a flowchart illustrating a method of receiving a file in which the device 100 is divided into a plurality of file fragments, from the cloud storage 1000, and executing the file, according to an embodiment of the present invention.

In step S410, the device 100 may receive a user input for selecting a file.

By receiving a user input that selects one of a list of files, the device 100 may receive a user input for selecting the file.

In the device 100, whether the file is a file divided into a plurality of file fragments may be stored as metadata of the file corresponding to the identification information of the file. Upon receiving the user input instructing to execute the file, the device 100 can determine whether the file is a file divided into a plurality of file fragments based on the metadata of the file.

In step S420, the device 100 may determine the cloud storage 1000 in which each of the plurality of file fragments is stored, corresponding to each of the plurality of file fragments divided from the file.

If the file is a file divided into a plurality of file fragments, the device 100 can determine the cloud storage 1000 in which each of the plurality of file fragments is stored, based on the file partition information. The file partition information may include identification information of a plurality of file fragments and identification information of the cloud storage 1000 to store a plurality of file fragments.

The device 100 may obtain the file partition information stored in the device 100. [ In addition, the device 100 may receive the file partition information from at least one of the plurality of cloud storages 1000. In addition, the device 100 can receive the file division information from a predetermined external server.

In step S430, the device 100 may receive each of the plurality of file fragments from the determined cloud storage 1000, respectively.

If the first file fragment of the plurality of file fragments is a fragment of a file that is redundantly stored in two or more of the plurality of cloud storages 1000, the device 100 may determine that two or more cloud storages 1000 Select one and receive the first file fragment from the selected cloud storage 1000.

In addition, if the second file fragment of the plurality of file fragments is a fragment of a file that is redundantly stored in two or more of the plurality of cloud storages 1000, the device 100 may extract the second file fragment from the two or more cloud storages 1000, Different parts can be received at the same time.

In step S440, the device 100 can combine the received plurality of file fragments to generate a file.

When a plurality of file fragments are divided into a plurality of file fragments and then are encrypted fragments corresponding to each of the plurality of fragments, the device 100 decrypts the received fragments of the fragments, Can be combined to generate a file.

When a plurality of file fragments are file fragments divided into a plurality of file fragments after the file is encrypted, the device 100 generates a file by combining a plurality of received file fragments, and decrypts the generated file .

In step S450, the device 100 may execute the generated file.

For example, the device 100 may execute text, image, document or video file to output information in the file.

5 is a flow diagram illustrating a method for a device 100 to receive a plurality of file fragments from the cloud storage 1000 and combine the received plurality of file fragments to execute the file, according to another embodiment of the present invention. to be.

In step S510, the device 100 may receive a user input for selecting a file.

For example, the device 100 may display a list of files that are divided into a plurality of file fragments. The list of files may include identification information of the files. By receiving a user input that selects one of a list of files, the device 100 may receive a user input that selects the identification information of the files divided into a plurality of file fragments.

In the device 100, whether the file is a file divided into a plurality of file fragments may be stored as metadata of the file corresponding to the identification information of the file. Upon receiving the user input instructing to execute the file, the device 100 can determine whether the file is a file divided into a plurality of file fragments based on the metadata of the file.

In step S513, the device 100 can determine the cloud storages 1000 in which each of the plurality of file fragments is stored, corresponding to each of the plurality of file fragments divided from the file.

If the file is a file divided into a plurality of file fragments, the device 100 can determine the cloud storage 1000 in which each of the plurality of file fragments is stored, based on the file partition information.

The file partition information may include identification information of a plurality of file fragments and identification information of the cloud storage 1000 to store a plurality of file fragments. For example, the identification information of the file fragments may be "first file fragment", "second file fragment", and "third file fragment", and the storage location of the "first file fragment" ), The storage location of the "second file fragment" is the second cloud storage 1000b, and the storage location of the "third file fragment" may be the third cloud storage 1000c.

The device 100 may obtain the file partition information stored in the device 100. [ In addition, the device 100 may receive the file partition information from at least one of the plurality of cloud storages 1000. In addition, the device 100 can receive the file division information from a predetermined external server.

In step S515, the device 100 may request a first file fragment to the first cloud storage 1000a in response to the identification information of the user registered in the first cloud storage 1000a.

The file fragment request may include account information of a user registered in the cloud storage 1000, identification information of a file fragment, and identification information of a folder in which a file fragment is stored.

In step S520, the first cloud storage 1000a may send a first file fragment to the device 100. [

The first cloud storage 1000a may determine whether the user has the right to receive the requested first file fragment based on the user's account information received from the device 100. [

If the user has the right to receive the requested first file fragment, the first cloud storage 1000a may transmit the first file fragment to the device 100. [

In step S525, the device 100 may request a second file fragment to the second cloud storage 1000b in response to the identification information of the user registered in the second cloud storage 1000b.

In step S530, the second cloud storage 1000b may send a second file fragment to the device 100. [

In step S535, the device 100 may request a third file fragment to the third cloud storage 1000c in response to the identification information of the user registered in the third cloud storage 1000c.

In step S540, the third cloud storage 1000c may send a third file fragment to the device 100. [

In step S545, the device 100 may combine the received first to third file fragments to generate a file.

The device 100 can determine the order of the file fragments based on the file division information. Then, the device 100 can generate the file by combining the first to third file fragments based on the order of the determined file fragments.

When a plurality of file fragments are divided into a plurality of file fragments and then are encrypted fragments corresponding to each of the plurality of fragments, the device 100 decrypts the received fragments of the fragments, Can be combined to generate a file.

When a plurality of file fragments are file fragments divided into a plurality of file fragments after the file is encrypted, the device 100 generates a file by combining a plurality of received file fragments, and decrypts the generated file .

In step S550, the device 100 may execute the generated file.

For example, the device 100 may execute a file viewer application to output information in a file. For example, if the file is a document file, the device 100 may obtain the document content from the document file and display the obtained document content. Further, when the file is a moving image file, the device 100 can decode the moving image file and display the decoded moving image frame.

6 is a diagram illustrating information about a plurality of cloud storages 1000 stored in the device 100, according to an embodiment of the present invention.

Referring to FIG. 6, the device 100 may store information 610 related to a plurality of cloud storage devices 1000 registered by a user.

The information 610 related to the cloud storage 1000 may include address information 620 of the cloud storage 1000 and account information 630 of the user registered in the cloud storage 1000. The device 100 may store the address information 620 of the cloud storage 1000 and the account information 630 of the user registered in the cloud storage 1000 corresponding to each of the cloud storage 1000. [

The address information 620 of the cloud storage 1000 may include a Uniform Resource Locator (URL) address of the cloud storage 1000.

In addition, the user account information 630 may include identification information and a password of a user registered in the cloud storage 1000. The user account information may include access information issued to the device 100 by the user authenticating the user based on the user identification information and the password received from the device 100 by the cloud storage 1000. In addition, the user account information 630 may include session maintenance information for maintaining a session between the device 100 and the cloud storage 1000.

7 is a diagram illustrating file partitioning information according to an embodiment of the present invention.

Referring to FIG. 7, the file partition information 700 may include a file name 710 and a file size 720. In addition, the file partition information 700 includes the location 760 of the file fragment, the identification information 770 of the file fragment, and the location 780 where the file fragment is stored, corresponding to each file fragment 730, 740, can do.

For example, upon receiving a user input instructing to distribute a file named " Fiel.avi " to the cloud storage 1000, the device 100 assigns a file named " Fiel.avi "Quot; File1_piece_2.part " and " File1_piece_3.part ". Further, the device 100 stores "File1_piece_1.part" in the first cloud storage 1000a, "File1_piece_2.part" in the second cloud storage 1000b, and "File1_piece_3.part" into the third cloud And to store it in the storage 1000c.

Device1.part ", " File1_piece_2.part ", and " File1_piece_2.part " in response to the identification information of " Fiel.avi " by requesting the cloud storage 1000 corresponding to each file fragment to store each file fragment. quot; part " and " File1_piece_3.part " and the cloud storage 1000 storing the file fragments can be stored as the file partition information 700. [

The device 100 may store the file division information 700 in a file form or a database form. In addition, the device 100 may store the file partition information 700 in the device 100 or the cloud storage 1000.

8 is a diagram illustrating a method for a device 100 to receive a piece of a file from the cloud storage 1000 based on file partitioning information, in accordance with an embodiment of the present invention.

Referring to FIG. 8, file division information 60 may be stored in the device 100 in correspondence with the identification information 52 of the file 50. FIG.

When the file 50 is a file divided into a plurality of file fragments, the device 100 can obtain the file division information 60 corresponding to the identification information 52 of the file. The device 100 acquires the identification information of the plurality of file pieces 50_1, 50_2, and 50_4 corresponding to the file 50 and the identification information of the plurality of file pieces 50_1, 50_2, and 50_4 corresponding to the file 50 by acquiring the file division information 60 corresponding to the identification information 52 of the file. It is possible to obtain the identification information of the cloud storage 1000 in which the file fragments 50_1, 50_2, and 50_4 are stored.

For example, on the basis of the file division information 60, the device 100 identifies the file pieces 50_1, 50_2, and 50_4 corresponding to File1.avi as "File1_piece_1.part", "File1_piece_2.part" The cloud storage 1000 in which the file fragment 50_1 of "File1_piece_1.part" is stored is the first cloud storage 1000a and the cloud storage 1000 of the "File1_piece_2.part" file fragment 50_2 in which "File1_piece_2.part" Is the second cloud storage 1000b and the cloud storage 1000 in which the file fragment 50_3 of "File1_piece_3.part" is stored is the third cloud storage 1000c.

As each file fragment acquires the identification information of the stored cloud storage 1000, the device 100 can request each file fragment to the cloud storage 1000 where each file fragment is stored.

9A is a diagram for explaining how a device 100 receives file partition information from a cloud storage 1000, according to an embodiment of the present invention.

Referring to FIG. 9A, the file partition information 60 may be stored in at least one of the plurality of cloud storages 1000.

The file partition information 60 may be stored in the cloud storage 1000 in the form of a file corresponding to the identification information of the user. In this case, the file partition information 60 may include file partition information 60 for all the files of the user stored in the cloud storage 1000.

When the file division information 60 is stored in the cloud storage 1000 in the form of a file, the device 100 may store the identification information of the file division information file 60. [ In addition, the device 100 may store identification information of at least one cloud storage 1000 in which the file partition information file 60 is stored. Accordingly, the device 100 can receive the file division information file 60 from the cloud storage 1000 in which the file division information file 60 is stored.

The device acquires file division information 60 for each file from the file division information file 60 in which the file division information 60 for all the divided files among the user's files stored in the cloud storage 1000 is recorded can do.

According to an embodiment, the file partition information 60 may be stored in the cloud storage 1000 in the form of a database corresponding to the identification information of the user.

The identification information of at least one cloud storage 1000 in which the file partition information database 60 is stored may be stored in the device 100 when the file partition information 60 is stored in the cloud storage 1000 in the form of a database .

Accordingly, the device 100 can request the cloud storage 1000 to at least one cloud storage 1000 in which the file partition information database 60 is stored, the file partition information 60 for one file. In this case, the device 100 may transmit the account information of the user registered in the cloud storage 1000 and the identification information of the file together.

Upon receiving a request to transfer file partition information 60 for one file from the device 100, the cloud storage 1000 authenticates the user based on the account information of the user, identifies the user and identification information of the file The file division information 60 for the file can be transmitted from the file division information database 60 to the device 100. [

9B illustrates a method in which a device 100 receives file partition information from the cloud storage 1000 and receives a piece of the file from the cloud storage 1000 based on the file partition information, according to an embodiment of the present invention. FIG.

In step S910, the device 100 may receive a user input for selecting identification information of a file divided into a plurality of file fragments.

For example, the device 100 may display a list of files that are divided into a plurality of file fragments. By receiving a user input that selects one of a list of files, the device 100 may receive a user input that selects the identification information of the files divided into a plurality of file fragments.

In step S913, the device 100 may request file partition information from the third cloud storage 1000c.

The file partition information may be stored in the cloud storage 1000 as a file. In this case, the file division information file may include file division information for all the divided files among the user files stored in the cloud storage 1000.

When the file division information is stored in the cloud storage 1000 as a file, the device 100 may store the identification information of the file division information file. In addition, the device 100 may store identification information of at least one cloud storage 1000 in which a file partition information file is stored.

Upon receiving the user input instructing to execute the file, the device 100, based on the identification information of the at least one cloud storage 1000 in which the file division information file is stored and the identification information of the file division information file, File to the cloud storage 1000.

If the at least one cloud storage 1000 storing the file partition information file is the third cloud storage 1000c, the device 100 may request the file partition information file to the third cloud storage 1000c. In this case, the device 100 may transmit the identification information of the file division information file and the account information of the user registered in the third cloud storage 1000c together.

According to the embodiment, the file division information for each file may be stored in the cloud storage 1000 corresponding to the identification information of the user and the identification information of the file. In this case, the device 100 may request the file storage information corresponding to the file to be executed to the cloud storage 1000. In this case, the device 100 can transmit the identification information of the file to be executed together.

In step S915, the third cloud storage 1000c may send the file partition information to the device 100. [

If the file partition information is stored in the cloud storage 1000 in the form of a file, the third cloud storage 1000c can determine whether the user has read permission for the file partition information file based on the account information of the received user have. If the user has read access to the file partition information file, the third cloud storage 1000c can transfer the file partition information file to the device 100. [

When the file division information for each file is stored in the cloud storage 1000 in correspondence with the identification information of the user and the identification information of the file, the third cloud storage 1000c performs file division Information to the device 100.

In step S920, the device 100 may determine the cloud storage 1000 storing a plurality of file fragments corresponding to each of the plurality of file fragments.

When the file division information file is received from the cloud storage 1000, the device 100 can obtain file division information on the file to be executed from the file division information file. The device 100 can determine the cloud storage 1000 in which each of the plurality of file fragments is stored based on the file partition information for the file to be executed.

When the file division information for the file to be executed is received from the cloud storage 1000, the device 100 can determine the cloud storage 1000 storing the plurality of file fragments based on the received file division information .

In step S925, the device 100 may request the first file fragment corresponding to the identification information of the user registered in the first cloud storage 1000a. In step S928, the first cloud storage 1000a may transmit the first file fragment to the device 100. [ In step S930, the device 100 may request a second file fragment corresponding to the identification information of the user registered in the second cloud storage 1000b. In step S935, the second cloud storage 1000b may send a second file fragment to the device 100. [ In step S940, the device 100 may request a third file fragment corresponding to the identification information of the user registered in the third cloud storage 1000c. In step S945, the third cloud storage 1000c may send a third file fragment to the device 100. [ In step S950, the device 100 may combine the received first to third file fragments to generate a file. In step S955, the device 100 can execute the generated file.

FIG. 9C is a diagram illustrating an example of a method in which a user's other device 100b receives file partition information from the cloud storage 1000 and extracts a file fragment from the cloud storage 1000 based on the received file partition information Fig.

9C, the other device 100b of the user acquires the file partition information 60 stored in the cloud storage 1000 and extracts a plurality of files from the cloud storage 1000 based on the obtained file partition information 60 File fragments.

The user's other device 100b may be a device that is not a device that stores a plurality of pieces of files of the user's device in the cloud storage 1000. [ The account information of the user registered in the plurality of cloud storages 1000 may be stored in the other device 100b of the user.

The user's other device 100b can receive the file partition information file 60 from the cloud storage 1000. [ For example, the user's other device 100b may request a list of files of the user stored in the cloud storage 1000 to the cloud storage 1000, based on the account information of the user registered in the cloud storage 1000 have. Upon receiving a request for a list of files, the cloud storage 1000 authenticates the user based on the user's account information received from the user's other device 100b, 100b. The list of the user's files may include identification information of the file division information file 60. [ The other device 100b of the user can request and receive the file division information file 60 from the cloud storage 1000 based on the identification information of the file division information file 60. [

The other device 100b of the user can obtain a list of files of the user distributed and stored in the plurality of cloud storages 1000 from the file division information file 60. [ The user's other device 100b may also display a list of files distributed to the cloud storage 1000.

Upon receiving a user input for executing one of a list of files stored in the cloud storage 1000, the other device 100b of the user can extract a plurality of file fragments for the file to be executed from the file division information file 60 Identification information, and identification information of the cloud storage 1000 in which each piece of the file is stored. Each of the other devices 100b of the user is allowed to connect each of the cloud storages 1000 to each of the cloud storages 1000 based on the identification information of the plurality of file fragments and the identification information of the cloud storages 1000 in which the respective file fragments are stored You can request a piece of the file to save.

10 is a diagram illustrating a method in which a device 100 receives file partition information from an external server and receives a plurality of file fragments from the cloud storage 1000 based on the file partition information, according to an embodiment of the present invention. to be.

Referring to FIG. 10, the file division information 60 may be stored in the file division storage server 2000.

The device 100a can request the file division information server 2000 to store the file division information 60 for one file 50 in correspondence with the identification information of the user registered in the file division information server 2000 have. In addition, the device 100a can receive the file division information 60 corresponding to one file 50 to the file division information server 2000. [

The file division information server 2000 can store the file division information 60 of the user in correspondence with the identification information of the user registered in the file division information server 2000 and the identification information of the file. The file division information server 2000 acquires the file division information 60 of the user based on the identification information of the user and the identification information of the file and stores the obtained file division information 60 of the user in the device 100a, As shown in FIG.

The other device 100b of the user can also receive the file partition information 60 from the server based on the identification information of the user and the identification information of the file.

The device 200 of another user can further divide the file division information 70 for the file of another user into the file division information server 70 based on the identification information of the other user registered in the file division information server 2000, (2000), or can receive it from the file division information server (2000).

Figures 11A through 11E illustrate how a device 100 displays a list of files as a user's files are distributed and stored, according to one embodiment of the present invention.

Referring to FIG. 11A, a user's file may be stored in the first cloud storage 1000a, the second cloud storage 1000b, and the third cloud storage 1000c.

For example, a user's file stored in the first cloud storage 1000a may be stored in a " First_Cloud_Drive " folder 1110. [ Also, the file of the user stored in the second cloud storage 1000b may be stored in the " Second_Cloud_Drive " folder 1120. [ In addition, the user's file stored in the third cloud storage 1000c may be stored in the " Third_Cloud_Drive " folder 1130. [ In addition, the third cloud storage 1000c may have a "Third_Cloud_Drive_FILE1" file 1132 and a "Third_Cloud_Drive_FILE2" file 1234 stored therein.

In addition, the user's file fragments and file partition information stored in one cloud storage 1000 can all be stored in a predetermined folder. In addition, the identification information of folders in which a plurality of pieces of file of the same user are stored in the cloud storage 1000 may be the same. For example, a folder 1115 in which a piece of the user's file is stored in the first cloud storage 1000a, a folder 1125 in which a piece of the user's file is stored in the second cloud storage 1000b, The identification information of the folder 1135 in which a piece of the user's file is stored may be the same as " Private ".

Referring to FIG. 11B, the device 100 may display a list of files stored in the cloud storage 1000.

For example, upon receiving a user input that displays a list of files stored in the cloud storage 1000, the device 100 may request and receive a list of the user's files from the cloud storage 1000. Also, upon receiving an event indicating that a file has been added, deleted or updated, for example, from the cloud storage 1000, the device 100 may request and receive a list of the user's files from the cloud storage 1000 . In addition, the device 100 may receive information on the file hierarchy of the files stored in the cloud storage 1000 from the cloud storage 1000 together.

Upon receiving the list of files and information about the file hierarchy, the device 100 may display a list of folders and files stored in the cloud storage 1000 shown in FIG. 11A.

Third_Cloud_Drive_FILE2 " file 1134 stored in the third cloud storage 1000c of the list of files and receives the predetermined user input, the device 100 stores the " Third_Cloud_Drive_FILE2 " file 1134 in the cloud storage 1000 And a menu 1180 for distributing and storing the image data. Upon receiving a user input selecting menu 1180 to distribute " Third_Cloud_Drive_FILE2 " file 1134 to the cloud storage 1000, the device 100 sends the file " Third_Cloud_Drive_FILE2 " . In addition, the device 100 may determine the file names of the three file fragments as "Third_Cloud_Drive_FILE2.part1", "Third_Cloud_Drive_FILE2.part2" and "Third_Cloud_Drive_FILE2.part3".

The device 100 requests and receives the content data of the file " Third_Cloud_Drive_FILE2 " 1134 from the cloud storage 1000, and when the device 100 and the cloud storage 1000 synchronize only the metadata of the file, Quot; Third_Cloud_Drive_FILE2 " file 1134 can be divided into three file fragments.

In addition, when the device 100 and the cloud storage 1000 synchronize the metadata of the file and the content data of the file together, the content of the file "Third_Cloud_Drive_FILE2" 1134 may be stored in the device 100. In this case, the device 100 can divide the content data of the " Third_Cloud_Drive_FILE2 " file 1134 stored in the device 100 into three file fragments.

The device 100 may determine the cloud storage 1000 to store the fragmented file fragments. The device 100 may request that the cloud storage 1000 store each piece of the file and store each piece of the file in a " private " folder. In addition, the device 100 may generate file partition information for the " Third_Cloud_Drive_FILE2 " file 1134 as a " replica_info.dat " file and store the generated " replica_info.dat " And can request the storage 1000.

In addition, the device 100 may request to delete the " Third_Cloud_Drive_FILE2 " file 1134 to the third cloud storage 1000c where the " Third_Cloud_Drive_FILE2 " file 1134 is stored.

Referring to FIG. 11C, upon receipt of a file fragment storage request from the device 100, the first cloud storage 1000a receives the file fragment stored in the " Third_Cloud_Drive_FILE2_part1 " file 1102 received in the " private " folder 1115 in the first cloud storage 1000a The piece 1116 can be stored. Also, the second cloud storage 1000b may store the " Third_Cloud_Drive_FILE2_part1 " file fragment 1126 received in the " private " folder 1125 in the second cloud storage 1000b. The third cloud storage 1000c may also store the received " Third_Cloud_Drive_FILE2_part1 " file fragment 1136 in a " private " folder 1135 in the third cloud storage 1000c.

In addition, upon receiving the request to store the file partition information from the device 100, each of the cloud storages 1000 stores the file partition information of the " Third_Cloud_Drive_FILE2 " file 1134 in each of the " private " folders 1115, 1125, Quot; replica_info.dat " 1150, which includes " replica_info.dat "

In addition, the third cloud storage 1000c may delete the " Third_Cloud_Drive_FILE2 " file 1134 as it receives a delete request for the " Third_Cloud_Drive_FILE2 " file 1134 from the device 100. [

Referring to FIG. 11D, as files are distributed and stored in a plurality of cloud storages 1000, the device 100 changes the location of the "Third_Cloud_Drive_FILE2" file 1134 from the "Third_Cloud_Drive" folder 1130 to the predetermined " Lt; RTI ID = 0.0 > 1170 < / RTI >

Referring to FIG. 11E, the user's other device 100b can receive a list of distributed stored files from the cloud storage 1000 and display a list of received files. The user's other device 100b may be a device that stores a plurality of pieces of files among the user's devices 100b in the cloud storage 1000. [

The user's other device 100b may receive a list of files stored in the cloud storage 1000 that are distributed.

For example, upon receiving a user input that displays a list of files stored in the cloud storage 1000, the user's other device 100b may access at least one of the plurality of cloud storage 1000 to the cloud storage 1000 Quot; replica_info.dat " file 1150.

Also, for example, upon receiving an event indicating that the " replica_info.dat " file 1150 has been updated from the cloud storage 1000, the other device 100b of the user sends the cloud storage 1000, quot; replica_info.dat " file 1150.

Upon receiving the " replica_info.dat " file 1150 from at least one cloud storage 1000, the other device 100b of the user can obtain the file name of the distributed stored file from the " replica_info.dat " file 1150 have. The other device 100b of the user can display a list of distributedly stored files based on the file name of the distributedly stored file. For example, the user's other device 100b may display the file name of the " Third_Cloud_Drive_FILE2 " file 1134 in the " Private " folder 1182. [ In this case, the other device 100b of the user notifies the other device 100b of the user that the " Third_Cloud_Drive_FILE2 " file 1134 is not actually stored and only the metadata of the file is stored. As shown in FIG.

Upon receiving the user input selecting the " Third_Cloud_Drive_FILE2 " file 1134, the user's other device 100b may obtain the file partition information of the " Third_Cloud_Drive_FILE2 " file 1134 from the " replica_info.dat " file 1150 have. The other device 100b of the user can receive the file fragments corresponding to the " Third_Cloud_Drive_FILE2 " file 1134 from each of the cloud storages 1000, based on the file division information of the " Third_Cloud_Drive_FILE2 " The other device 100b of the user can combine the received file fragments to regenerate the " Third_Cloud_Drive_FILE2 " file 1134 and execute the generated " Third_Cloud_Drive_FILE2 "

12A and 12B illustrate a method of displaying a distributedly stored file by dividing a file stored in only the device 100 into a plurality of cloud storages 1000 in accordance with an embodiment of the present invention Fig.

Referring to FIG. 12A, the device 100 may divide a file stored only in the device 100 according to an input of a user, and store the divided file in a plurality of the cloud storages 1000.

For example, device " Harry Potter .avi " file 1230 may be stored in the " Movie " folder. The " Harry Potter.avi " file 1230 may not be stored in the cloud storage 1000 in which the user of the device 100 is registered.

The device 100 distributes the " Harry Potter .avi " file 1230 to a plurality of cloud storages 1000 as it selects the " Harry Potter.avi " file 1230 and receives the predetermined user input The menu 1180 can be displayed. Upon receiving a user input that selects a menu 1180 for distributed storage, the device 100 may divide the " Harry Potter .avi " file 1230 into a plurality of file fragments. In addition, the device 100 may store a plurality of pieces of files in a plurality of cloud storages 1000 in a distributed manner.

Referring to FIG. 12B, the device 100 may delete a file from the device 100 as a plurality of pieces of files are distributed and stored in a plurality of cloud storages 1000.

For example, device 100 may delete content data of " Harry Potter .avi " file 1230 from device 100 as a plurality of file fragments are distributed across a plurality of cloud storages 1000, Quot; Harry Potter .avi " file 1230 as a file stored in the cloud storage 1000. For example, the device 100 may store the identification information of the " Private " folder 1182 as a folder in which distributed files among the plurality of folders in the device 100 are located. Accordingly, the device 100 may change the location of the " Harry Potter .avi " file 1230 so that the file name of the " Harry Potter .avi " file 1230 appears in the &

Further, according to the embodiment, the device 100 may not delete the content data of the " Harry Potter .avi " file 1230. [

13 is a diagram illustrating a method for providing a user interface for selecting a cloud storage 1000 in which a device 100 distributes and stores files according to an embodiment of the present invention.

Referring to FIG. 13, the device 100 may provide a user interface for selecting a cloud storage 1000 for distributing and storing files.

For example, upon receiving a user input that selects a file and selects a menu for distributed storage of selected files, the device 100 includes a menu 1310 for selecting a cloud storage 1000 to distribute and store selected files, Can be displayed.

The menu 1310 for selecting the cloud storage 1000 for distributing and storing files includes identification information of the cloud storage 1000 to which the user is registered and a check box button for selecting each of the cloud storage 1000 to which the user is registered can do.

Upon receiving at least one checkbox button and a user input pressing the OK button, the device 100 selects a file fragment corresponding to each file fragment of the selected file among the cloud storages 1000, May determine the cloud storage 1000 to store.

14A and 14B are diagrams for explaining a method for the device 100 to redundantly store identical file fragments in a plurality of cloud storages 1000 according to an embodiment of the present invention.

Referring to FIG. 14A, the device 100 may request a plurality of cloud storages 1000 to store the same file fragments.

The device 100 may divide one file into a plurality of file fragments and determine a plurality of cloud storages 1000 corresponding to each of the divided file fragments to store the fragmented file fragments. In this case, the device 100 can determine a plurality of the cloud storages 1000 to store the same file fragments corresponding to the same file fragments.

For example, the device 100 divides one file 50 into a file fragment 1 (50_1), a file fragment 2 (50_2), and a file fragment 3 (50_3), and stores the file fragment 1 (50_1) The first cloud storage 1000a and the second cloud storage 1000b as the cloud storage 1000 and the second cloud storage 1000b and the second cloud storage 1000b as the cloud storage 1000 for storing the file fragment 2 50_2, The first cloud storage 1000a and the third cloud storage 1000c can be determined as the cloud storage 1000 to store the file fragment 3 (50_3).

By determining the cloud storage 1000 to store the file fragments, the device 100 may request to store the same file fragments in a plurality of cloud storage 1000s to store the same file fragments.

Referring to FIG. 14B, as the plurality of cloud storages 1000 are determined for the same file fragments, the device 100 stores the file fragment storage locations 780 for each file fragment 730, 740, It is possible to generate file partition information 700 in which a plurality of cloud storages 1000 are determined.

FIG. 14C is a diagram showing file fragments stored in a plurality of cloud storages 1000 according to an embodiment of the present invention, in which file fragments corresponding to a plurality of files are redundantly stored in a plurality of cloud storages 1000. FIG.

14C, the device 100 divides the file X (50x), the file Y (50y), and the file Z (50z) so that the same file fragments are redundantly stored in the plurality of cloud storages 1000, To the cloud storage (1000).

For example, the device 100 may split the file X 50x into an X_1.part file fragment 50x_1 and an X_2.part file fragment 50x_2. The device 100 may divide the file Y (50y) into a Y_1.part file fragment 50y_1 and a Y_2.part file fragment 50y_2. The device 100 may split the file Z (50z) into a Z_1.part file fragment 50z_1 and a Z_2.part file fragment 50z_2. The device 100 may then store the X_1.part file fragment 50x_1 in the first cloud storage 1000a and the second cloud storage 1000b. In addition, the device 100 may store the X_2.part file fragment 50x_2 in the third cloud storage 1000c and the fourth cloud storage 1000d. In addition, the device 100 may store the Y_1.part file fragment 50y_1 in the first cloud storage 1000a and the third cloud storage 1000c. In addition, the device 100 may store the Y_2.part file fragment 50y_2 in the second cloud storage 1000b and the fourth cloud storage 1000d. In addition, the device 100 may store the Z_1.part file fragment 50z_1 in the first cloud storage 1000a and the fourth cloud storage 1000d. The device 100 may store the Z_2.part file fragment 50z_2 in the second cloud storage 1000b and the third cloud storage 1000c.

In addition, the device 100 may generate file division information for the file X (50x), the file Y (50y), and the file Z (50z) as the file " _reflica_info.dat " The file " _reflica_info.dat " 1410 includes a file X (50x), a file Y (50y), and a file Z (50y) corresponding to the identification information of each of the files X 50x, And 50z, respectively.

The device 100 can store the file division information file " _reflica_info.dat " file 1410 in the first to fourth cloud storages 1000a to 1000d.

14D illustrates a method of receiving a piece of a file from a plurality of cloud storages 1000 when one of the plurality of cloud storages 1000 does not operate according to an embodiment of the present invention FIG.

14D, the first to third file pieces 50_1, 50_2, and 50_3 are stored in the first to third cloud storages 1000a to 1000c in correspondence with one file 50, When the second cloud storage 1000b does not operate, the device 100 receives the first to third file fragments 50_1, 50_2, and 50_3 from the first cloud storage 1000a and the third cloud storage 1000c File can be generated.

For example, the device 100 receives the first file fragment 50_1 and the third file fragment 50_3 from the first cloud storage 1000a and the second file fragment 50_2 from the third cloud storage 1000c , It is possible to acquire all of the first to third file pieces 50_1, 50_2, and 50_3.

15 illustrates a method in which a device 100 simultaneously receives pieces of the same file from a plurality of cloud storages 1000 according to an embodiment of the present invention as the same file fragments are redundantly stored in a plurality of cloud storages 1000 Fig.

Referring to FIG. 15, the device 100 may simultaneously receive the same file fragments from a plurality of cloud storages 1000.

For example, the device 100 may receive a portion of the file fragment 3 (50_3) from the third cloud storage 1000c and another portion of the file fragment 3 (50_3) from the fourth cloud storage 1000d You can decide. Accordingly, the device 100 may request the third cloud storage 1000c for a portion of the file fragment 3 50_3 and the fourth cloud storage 1000d for other portions of the file fragment 4 50_4.

In this case, the device 100 can transmit not only the identification information of the file fragment but also the location information in the file fragment of the data to be received to the cloud storage 1000d. Accordingly, the device 100 can simultaneously receive the third file fragment from the third cloud storage 1000c and the fourth cloud storage 1000d.

16A and 16B are diagrams for explaining how the device 100 encrypts a file, according to an embodiment of the present invention.

Referring to FIG. 16A, the device 100 may encrypt the file 50 before dividing the file 50 into file fragments. After encrypting the file 50, the encrypted file can be divided into a plurality of file fragments 50_1, 50_2, and 50_3.

In addition, the device 100 may receive a plurality of pieces of files 50_1, 50_2, and 50_3 corresponding to the files from the cloud storage 1000. The device 100 can recover the encrypted file by combining the received plurality of file fragments 50_1, 50_2, and 50_3. After restoring the encrypted file, the device 100 may decrypt the restored file and execute the decrypted file (50).

16B, after encrypting a file and dividing the encrypted file into a plurality of file fragments, the device 100 stores the encryption key 1610 used in encryption corresponding to the identification information of the file as file fragment information (700).

According to the embodiment, the encryption key 1610 may be stored separately from the file partition information 700. [ For example, the encryption key 1610 may be stored in the device 100, separately from the file partition information 700, and stored in the cloud storage 1000.

17A and 17B are diagrams for explaining how the device 100 encrypts a file, according to another embodiment of the present invention.

Referring to FIG. 17A, the device 100 can divide the file 50 into a plurality of file fragments, and then encrypt each of the divided file fragments. By encrypting each of the fragmented file fragments, the device 100 can store the encrypted plurality of file fragments 53, 55, 57 in the cloud storage 1000.

The device 100 may also receive a plurality of encrypted pieces of files 53, 55, 57 corresponding to the files 50 from the cloud storage 1000. The device 100 can decrypt the received plurality of file fragments 53, 55, and 57, combine the decrypted plurality of file fragments to generate a file, and execute the generated file.

17B, after dividing a file into a plurality of file fragments and encrypting each of the plurality of file fragments, the device 100 stores the encryption key 1710 , 1720, and 1730 can be stored as the file partition information 700.

18A and 18B are diagrams for explaining how the device 100 receives information for encryption from a user to encrypt a file, according to an embodiment of the present invention.

Referring to FIG. 18A, the device 100 may provide a user interface for encrypting a file.

For example, the device 100 may provide a menu 1800 for setting a password to be used for file encryption when distributing the file. The menu 1800 for setting the password may include a check box 1810 for selecting whether or not to encrypt the file when distributing the file, an input field 1820 for inputting the password, and a screen keyboard have. Upon receiving a user input that stores a password entered in the input field 1820, the device 100 may encrypt the file based on the entered password.

Referring to FIG. 18B, the device 100 may provide a user interface for setting a password corresponding to a file when distributing the file.

For example, upon receiving a user input that selects a file and instructs distributed storage of the selected file, the device 100 may display a setting window 1830 for setting a password corresponding to the selected file. Upon inputting a password to the setting window 1830 corresponding to the selected file and receiving a user input for storing the inputted password, the device 100 can encrypt the selected file with the inputted password as an encryption key have.

18C is a diagram for explaining a method for providing a user interface for the device 100 to receive decryption information upon receipt of a user input for selecting an encrypted and distributed stored file according to an embodiment of the present invention .

The device 100 may display a list of distributed stored files. In addition, the device 100 may receive user input selecting one of a list of files. If the selected file is encrypted and distributed and stored, the device 100 may display a password input window 1840 for receiving decryption information.

Upon inputting the password to the password input window 1840 and receiving the user input for completing the input, the device 100 can decrypt the selected file based on the inputted password.

19 is a diagram showing a module in a device 100 that performs the function of distributing and storing files according to an embodiment of the present invention.

Referring to FIG. 19, a plurality of modules in the device 100 may perform a function of distributing and storing files. A plurality of modules can be implemented by executing a program loaded in a memory in a processor in the device 100. [

The device 100 includes an Account Management Module 1910, a Data / Metadata Management Module 1920, an Update Management Module 1930, a Data Duplication Module, 1940) and a Cloud Storage Adaptation Interface (1950). Also, according to an embodiment, the device 100 may include a database module 1960 that performs database functions.

The account management module 1910 can manage accounts of users registered in each of the cloud storages 1000. For example, the account management module 1910 may store user account information. In addition, the account management module 1910 can send and receive data to and from the cloud storage 1000, without the need for separate user input to enter an account, based on the account of the user.

The data management module 1920 stores data and metadata of a file received from the cloud storage 1000 or a file to be stored in the cloud storage 1000 in the database 100 of the device 100 according to the data format supported by the device 100 1960). In addition, the data management module 1920 can manage files between the cloud storage 1000 and the device 100 by interlocking them.

The update management module 1930 can synchronize files with the cloud storage 1000 in conjunction with the cloud storage 1000 as files are added, deleted or updated in the cloud storage 1000 or the device 100 .

The file distribution storage module 1940 may divide the user's file into a plurality of file fragments and store the plurality of fragmented file fragments in the plurality of cloud storages 1000. The file distribution storage module 1940 may receive a plurality of file fragments corresponding to the files from the plurality of cloud storages 1000 and may combine the received plurality of file fragments to regenerate the files.

The cloud storage connection module 1950 may be a module for transmitting and receiving data to and from a plurality of cloud storages 1000a to 1000n. The cloud storage connection module 1950 may be implemented with an API (application programming interface) provided by a provider operating each of the cloud storages 1000. For example, an interface program for connecting each of the cloud storages 1000 may be added or deleted to the cloud storage connection module 1950 in the form of a plug-in.

According to the embodiment, the file distribution storage module 1940 in the configuration of FIG. 19 can be implemented as a server.

For example, the file distribution storage module 1940 may distribute and store files of each user. For example, the file distribution storage module 1940 may receive a file distributed storage request from the user's device. Upon receiving the file distributed storage request, the file distribution storage module 1940 receives the file from the user's device, divides the received file into a plurality of file fragments, and splits the plurality of fragmented file fragments into a plurality of cloud storage 1000).

In addition, the file distribution storage module 1940 may receive a request for a file that is distributed from the user's device. Upon receipt of the request for the distributed stored file, the file distribution storage module 1940 receives a plurality of file fragments corresponding to the file from the plurality of cloud storages 1000, combines the received plurality of file fragments, You can regenerate it. By regenerating the file, the file distribution storage module 1940 can transmit the created file to the user's device.

20 is a diagram for explaining a method in which a device 100 divides a file and distributes the file to a plurality of cloud storages 1000 according to an embodiment of the present invention.

Referring to FIG. 20, device 100 may execute application 2010. As the application 2010 is executed, the application 2010 may request the file storage module 2020 in the device 100 to store the file.

The file storage module 2020 can divide the files and distribute them to the plurality of cloud storages 1000a to 1000f.

Also, as the application 2010 is executed, the application 2010 can request a file to the file storage module 2020. [ The file storage module 2020 receives a plurality of file fragments stored in a plurality of the cloud storages 1000 and reproduces the files by combining the received plurality of file fragments. As the file is regenerated, the application 2010 can execute the generated file.

The file storage module 2020 may generate file partition information 2030 for each file and store the generated file partition information 2030 in the plurality of cloud storages 1000a to 1000f.

Figure 21 shows a block diagram of a device 100, in accordance with one embodiment of the present invention.

The device 100 may include a control unit 170, a user input unit 145, a communication unit 130, and a display unit 110, as shown in FIG. However, not all illustrated components are required. The device 100 may be implemented by more components than the components shown, and the device 100 may be implemented by fewer components.

The control unit 170 may control the user input unit 145, the communication unit 130, and the display unit 110.

In addition, the controller 170 may divide the file stored in the device 100 to generate a plurality of file fragments.

In addition, the controller 170 may determine the cloud storage 1000 in which a plurality of pieces of file among the plurality of cloud storages 1000 in which the user of the device 100 is registered. For example, the control unit 170 may determine a plurality of cloud storages 1000 to store the first file fragments corresponding to the first file fragments of the plurality of file fragments.

Also, the control unit 170 can determine the cloud storage 1000 storing a plurality of file fragments corresponding to each of the plurality of file fragments, based on the file division information. The control unit 170 may combine a plurality of pieces of file received from the cloud storage 1000 to generate a file and execute the generated file.

In addition, the control unit 170 can encrypt a file and generate a plurality of file fragments by dividing the encrypted file. In this case, the control unit 170 can combine a plurality of file fragments to generate a file, and can decode the generated file.

In addition, the control unit 170 may divide the file into a plurality of file fragments, and may encrypt at least one fragment of the plurality of file fragments. In this case, the control unit 170 can decode a plurality of file fragments and combine the decrypted file fragments to generate a file.

In addition, the control unit 170 can move the file into a predetermined folder by generating a plurality of file fragments by dividing the file.

The communication unit 130 can transmit and receive data to and from the cloud storage 1000. In addition, the communication unit 130 can transmit / receive data to / from an external device or an external server.

The communication unit 130 may request the cloud storage 1000 corresponding to each file fragment to store the respective file fragments.

In addition, the communication unit 130 may request to store the first file fragments in the plurality of cloud storages 1000 in which the first file fragments are to be stored.

The communication unit 130 also requests that at least one of the plurality of file storage devices 1000 store the file partition information including the identification information of the plurality of file fragments and the identification information of the cloud storage 1000 for storing a plurality of file fragments .

In addition, the communication unit 130 may request the cloud storage 1000 corresponding to each file fragment to store a plurality of file fragments encrypted with at least one fragment.

In addition, the communication unit 130 may request the cloud storage 1000 in which the file is stored to delete the file, as the files are distributed and stored.

Also, the communication unit 130 can receive each of the plurality of file fragments from the cloud storage 1000 corresponding to each of the plurality of file fragments.

In addition, the communication unit 130 can receive the file division information from at least one of the plurality of cloud storages 1000.

In addition, the communication unit 130 can receive the same file fragments from two or more cloud storages 1000.

Also, the communication unit 130 can simultaneously receive different parts of the same file fragment from two or more cloud storages 1000. [

The user input unit 145 may receive the user input for distributing and storing the files and receiving and executing the distributed stored files.

For example, the user input unit 145 may receive a user input for selecting identification information of a file divided into a plurality of file fragments.

The display unit 110 may distribute files and display information for receiving and executing the distributed files.

22 is a block diagram illustrating a configuration of a device 100 according to another embodiment of the present invention.

22, the configuration of the device 100 may include, for example, a mobile phone, a tablet PC, a PDA, an MP3 player, a kiosk, an electronic frame, a navigation device, a digital TV, a Smart watch, A wrist watch, a smart glass, a wearable device such as a head-mounted display (HMD), and the like.

22, the device 100 includes a memory 120, a GPS chip 125, a video processor 135, and a display unit 110 in addition to the control unit 170, the user input unit 145, the communication unit 130, And may include at least one of an audio processor 140, a microphone unit 150, an image pickup unit 155, a speaker unit 160, and a motion detection unit 165.

The display unit 110 may include a controller (not shown) for controlling the display panel 111 and the display panel 111. The display panel 111 is implemented with various types of displays such as a liquid crystal display (LCD), an organic light emitting diode (OLED) display, an active matrix organic light-emitting diode (AM-OLED), and a plasma display panel . The display panel 111 may be embodied as being flexible, transparent or wearable. The display unit 110 may be coupled to the touch panel 147 of the user input unit 145 and provided as a touch screen (not shown). For example, the touch screen (not shown) may include an integrated module in which the display panel 111 and the touch panel 147 are combined in a laminated structure.

The memory 120 may include at least one of an internal memory (not shown) and an external memory (not shown).

The built-in memory may be a volatile memory (for example, a dynamic RAM (DRAM), a static random access memory (SRAM), a synchronous dynamic RAM (SDRAM), or the like), a nonvolatile memory (e.g., an OTPROM ), A PROM (Programmable ROM), an EPROM (Erasable and Programmable ROM), an EEPROM (Electrically Erasable and Programmable ROM), a Mask ROM, a Flash ROM etc.), a hard disk drive (HDD), or a solid state drive . According to one embodiment, the controller 170 may load and process commands or data received from at least one of the non-volatile memory or other components into the volatile memory. In addition, the control unit 170 can store data received or generated from other components in the nonvolatile memory.

The external memory may store at least one of CF (Compact Flash), SD (Secure Digital), Micro-SD (Micro Secure Digital), Mini-SD (Mini Secure Digital), xD .

The memory 120 may store various programs and data used in the operation of the device 100. For example, the memory 120 may temporarily or semi-permanently store at least a part of the content to be displayed on the lock screen.

The control unit 170 may control the display unit 110 such that a part of the content stored in the memory 120 is displayed on the display unit 110. [ In other words, the control unit 170 may display a part of the contents stored in the memory 120 on the display unit 110. [ Alternatively, when a user gesture is performed in one area of the display unit 110, the controller 170 may perform a control operation corresponding to the gesture of the user.

The control unit 170 may include at least one of a RAM 171, a ROM 172, a CPU 173, a GPU (Graphic Processing Unit) 174, and a bus 175. The RAM 171, the ROM 172, the CPU 173, and the GPU 174 may be interconnected via a bus 175.

The CPU 173 accesses the memory 120 and performs booting using the O / S stored in the memory 120. [ Various operations are performed using various programs, contents, data, and the like stored in the memory 120.

The ROM 172 stores a command set for booting the system and the like. For example, when a turn-on command is inputted and power is supplied, the CPU 173 copies the O / S stored in the memory 120 to the RAM 171 according to the instruction stored in the ROM 172, You can boot the system by running / S. When the booting is completed, the CPU 173 copies various programs stored in the memory 120 to the RAM 171, executes the program copied to the RAM 171, and performs various operations. The GPU 174 displays the UI screen in the area of the display unit 110 when the booting of the device 100 is completed. Specifically, the GPU 174 may generate a screen displaying an electronic document including various objects such as contents, icons, menus, and the like. The GPU 174 computes an attribute value such as a coordinate value, a shape, a size, and a color to be displayed by each object according to the layout of the screen. Then, the GPU 174 can generate screens of various layouts including the objects based on the computed attribute values. The screen generated by the GPU 174 may be provided to the display unit 110 and displayed in each area of the display unit 110.

The GPS chip 125 may receive the GPS signal from a GPS (Global Positioning System) satellite and calculate the current position of the device 100. The control unit 170 can calculate the user position using the GPS chip 125 when the navigation program is used or when the current position of the user is required.

The communication unit 130 can perform communication with various types of external devices according to various types of communication methods. The communication unit 130 may include at least one of a Wi-Fi chip 131, a Bluetooth chip 132, a wireless communication chip 133, and an NFC chip 134. The control unit 170 can perform communication with various external devices using the communication unit 130. [

The Wi-Fi chip 131 and the Bluetooth chip 132 may perform communication using a WiFi method or a Bluetooth method, respectively. In the case of using the Wi-Fi chip 131 or the Bluetooth chip 132, various connection information such as SSID and session key may be transmitted and received first, and communication information may be used to transmit and receive various information. The wireless communication chip 133 refers to a chip that performs communication according to various communication standards such as IEEE, ZigBee, 3G (3rd Generation), 3GPP (3rd Generation Partnership Project), LTE (Long Term Evolution) The NFC chip 134 means a chip operating in an NFC (Near Field Communication) system using a band of 13.56 MHz among various RF-ID frequency bands such as 135 kHz, 13.56 MHz, 433 MHz, 860 to 960 MHz and 2.45 GHz.

The video processor 135 may process the content received through the communication unit 130 or the video data included in the content stored in the memory 120. [ The video processor 135 may perform various image processing such as decoding, scaling, noise filtering, frame rate conversion, resolution conversion, etc. on the video data.

The audio processor 140 may process the content received through the communication unit 130 or the audio data included in the content stored in the memory 120. [ In the audio processor 140, various processes such as decoding or amplification of audio data, noise filtering, and the like may be performed.

When the playback program for the multimedia content is executed, the controller 170 may drive the video processor 135 and the audio processor 140 to play the corresponding content. The speaker unit 160 may output the audio data generated by the audio processor 140.

The user input unit 145 can receive various commands from the user. The user input 145 may include at least one of a key 146, a touch panel 147, and a pen recognition panel 148.

The keys 146 may include various types of keys, such as mechanical buttons, wheels, and the like, formed in various areas such as the front or side of the body exterior of the device 100,

The touch panel 147 senses a user's touch input and can output a touch event value corresponding to the sensed touch signal. When the touch panel 147 is combined with the display panel 111 to constitute a touch screen (not shown), the touch screen may be implemented by various types of touch sensors such as an electrostatic type, a pressure sensitive type, a piezoelectric type, The electrostatic type is a method of calculating the touch coordinates by sensing the minute electricity generated by the user's body when a part of the user's body is touched on the touch screen surface by using a dielectric coated on the surface of the touch screen. The depressurization type includes two electrode plates built in the touch screen. When the user touches the screen, the upper and lower plates of the touched point contact each other to sense current flow, and the touch coordinates are calculated. A touch event occurring on a touch screen can be generated by a finger of a person, but can also be generated by a conductive material capable of applying a capacitance change.

The pen recognition panel 148 detects proximity or touch input of the pen as a result of operation of the user's touch pen (e.g., a stylus pen, a digitizer pen) Touch events can be output. The pen recognition panel 148 may be implemented, for example, in an EMR manner and may sense a touch or proximity input according to proximity of a pen or change in intensity of an electromagnetic field due to a touch. More specifically, the pen recognition panel 148 includes an electromagnetic induction coil sensor (not shown) having a grid structure and an electronic signal processor (not shown) for sequentially providing AC signals having a predetermined frequency to the respective loop coils of the electromagnetic induction coil sensor ). ≪ / RTI > When a pen incorporating a resonant circuit exists in the vicinity of the loop coil of the pen recognition panel 148, a magnetic field transmitted from the loop coil generates a current based on mutual electromagnetic induction in the resonant circuit in the pen. Based on this current, an induction magnetic field is generated from the coils constituting the resonance circuit in the pen, and the pen recognition panel 148 detects the induction magnetic field in the loop coil in the signal reception state, The touch position can be detected. The pen recognition panel 148 may be provided at a lower portion of the display panel 111 with a certain area, for example, an area capable of covering the display area of the display panel 111. [

The microphone unit 150 may receive a user voice or other sound and convert the audio data into audio data. The control unit 170 may use the user's voice input through the microphone unit 150 in a call operation or convert the user's voice into audio data and store the user data in the memory 120. [

The image pickup unit 155 can capture a still image or a moving image under the control of the user. The image pickup unit 155 may be implemented as a plurality of units such as a front camera and a rear camera.

The control unit 170 performs a control operation in accordance with the user's voice inputted through the microphone unit 150 or the user's motion recognized by the image pickup unit 155. In the case where the image pickup unit 155 and the microphone unit 150 are provided, It is possible. For example, the device 100 may operate in a motion control mode or a voice control mode. When operating in the motion control mode, the control unit 170 activates the image pickup unit 155 to pick up a user, track a user's motion change, and perform a corresponding control operation. When operating in the voice control mode, the control unit 170 may analyze the user voice input through the microphone unit 150 and operate in a voice recognition mode for performing a control operation according to the analyzed user voice.

The motion sensing unit 165 may sense motion of the main body of the device 100. The device 100 may be rotated or tilted in various directions. At this time, the motion sensing unit 165 may sense motion characteristics such as a rotation direction, an angle, and a tilt using at least one of various sensors such as a geomagnetism sensor, a gyro sensor, and an acceleration sensor.

22, a USB port through which a USB connector can be connected in the device 100, various external input ports for connecting with various external terminals such as a headset, a mouse, a LAN, etc., and a DMB A DMB chip for receiving and processing a Digital Multimedia Broadcasting (DMB) signal, and various sensors.

The names of the components of the above-described device 100 may vary. Further, the device 100 according to the present disclosure may be configured to include at least one of the above-described components, and some components may be omitted or further include other additional components.

23 shows a block diagram of a cloud storage 1000, in accordance with an embodiment of the present invention.

Referring to FIG. 23, a cloud storage 1000 according to some embodiments may include a communication unit 1600, a control unit 1700, and a database 1900. In addition, the database 1900 may include a user account DB 1930 and a user file DB 1970.

In the user account DB 1930, identification information and password information of a user registered in the cloud storage 1000 may be stored. In addition, the user account DB 1930 may store access information issued to the device 100 as the cloud storage 1000 authenticates the user. In addition, the user account DB 1930 may store session maintenance information for maintaining a session between the device 100 and the cloud storage 1000.

A user's file can be stored in the user file DB (1970). For example, in the user file DB (1970), content data of a user's file and metadata of a user's file can be stored. In this case, the user file DB (1970) may store the user's file corresponding to the identification information of the user.

The communication unit 1600 may receive a file storage request from the device 100. [ Upon receipt of the file storage request, the control unit 1700 may store the received file in response to the identification information of the user.

Further, the communication unit 1600 can receive a request for the file from the device 100. [ Upon receipt of the file request, the control unit 1700 acquires the user's file based on the identification information of the user and the identification information of the file, and transmits the acquired user's file to the device 100 through the communication unit 1600 have.

In addition, the control unit 1700 can synchronize the user's file with the user's file. For example, as the user's file in the user file DB 1970 is modified, deleted, or updated, the control unit 1700 allows the device 100 to modify, delete, or update the same file through the communication unit 1600 Can be requested. Also, as the user's file in the device 100 is modified, deleted, or updated, the control unit 1700 may be requested to modify, delete, or update the same file from the device 100 via the communication unit 1600 .

One embodiment of the present invention may also be embodied in the form of a recording medium including instructions executable by a computer, such as program modules, being executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, the computer-readable medium can include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes any information delivery media, including computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transport mechanism.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

Claims (28)

A storage medium storing a program for causing a computer to execute a method of generating a plurality of file fragments by dividing a file stored in a device and determining cloud storages for storing each of the plurality of file fragments in correspondence with each of the plurality of file fragments among a plurality of cloud storage ; And
And a communication unit for requesting the determined cloud storages to store each of the plurality of file fragments.
The method according to claim 1,
A file stored in the device
The file being received from one of the plurality of cloud storages.
The method according to claim 1,
Wherein,
Determining a plurality of cloud storages corresponding to a first file fragment of the plurality of file fragments to store the first file fragment,
Wherein,
And request to store the first file fragments to a plurality of cloud storages for storing the first file fragments.
The method according to claim 1,
Wherein,
Requesting to store in the at least one of the plurality of cloud storages the file partition information including the identification information of the plurality of file fragments and the identification information of the cloud storages in which the plurality of file fragments are stored.
The method according to claim 1,
Wherein,
Generating a plurality of file fragments by partitioning the encrypted file based on an encryption key, storing the encryption key in the device, or storing the encryption key in at least one of the plurality of cloud storage devices, device.
The method according to claim 1,
Wherein,
Encrypting at least one piece of the plurality of file fragments based on an encryption key, storing the encryption key in the device, or storing at least one of the plurality of cloud storage Store it in one,
Wherein,
And request the cloud storage corresponding to each file fragment to store the plurality of file fragments encrypted by the at least one fragment.
The method according to claim 1,
Wherein,
And deletes the stored file as each of the plurality of file fragments is stored in each of the determined cloud storages.
The method according to claim 1,
Wherein the file stored in the device is one of the plurality of cloud storages and a file stored together with the device,
The communication unit requests the cloud storage where the file is stored to delete the file.
A controller for determining cloud storages in which each of the plurality of file fragments is stored corresponding to each of a plurality of file fragments divided from one file; And
And a communication unit for receiving each of the plurality of file fragments from the determined cloud storages,
Wherein the control unit generates the file by combining the received plurality of file fragments, and executes the generated file.
10. The method of claim 9,
Wherein,
From the at least one of the plurality of cloud storages, file partition information including identification information of the plurality of file fragments and identification information of cloud storages in which the plurality of file fragments are stored,
Wherein,
And based on the received file partition information, each of the plurality of file fragments determines stored cloud storages.
10. The method of claim 9,
Wherein a first file fragment of the plurality of file fragments is a fragment of a file stored in duplicate in at least two of the plurality of cloud storages,
Wherein,
Selecting one of the two or more cloud storages in correspondence with the first file fragment,
Wherein,
And receive the first file fragment from the selected cloud storage.
10. The method of claim 9,
Wherein a second file fragment of the plurality of file fragments is a fragment of a file that is redundantly stored in two or more of the plurality of cloud storages,
Wherein,
And receive different portions of the second file fragment from the at least two cloud storages simultaneously.
10. The method of claim 9,
Wherein the plurality of file fragments are encrypted fragments corresponding to each of the plurality of file fragments after the file is divided,
Wherein,
Receiving a decryption key for decrypting the encrypted plurality of file fragments from at least one of the device or the plurality of cloud servers,
Wherein,
And decrypts the received plurality of file fragments based on the received decryption key, and combines the decrypted file fragments to generate the file.
10. The method of claim 9,
Wherein the plurality of file fragments are fragmented file fragments after the file is encrypted,
Wherein,
Receiving a decryption key for decrypting the encrypted file from at least one of the device or the plurality of cloud servers,
Wherein,
And generates the file by combining the received plurality of file fragments based on the received decryption key, and decrypts the generated file.
Dividing a file stored in a device into a plurality of file fragments;
Determining cloud storage to store each of the plurality of file fragments corresponding to each of the plurality of file fragments among a plurality of cloud storage to which a user of the device is registered; And
And requesting the determined cloud storages to store each of the plurality of file fragments.
16. The method of claim 15,
Wherein the file stored in the device is a file received from one of the plurality of cloud storages.
16. The method of claim 15,
Wherein determining cloud storage to store each of the plurality of file fragments comprises:
Determining a plurality of cloud storages corresponding to a first file fragment of the plurality of file fragments to store the first file fragment,
Requesting the determined cloud storages to store each of the plurality of file fragments,
Each requesting to store the first file fragment to a plurality of cloud storage to store the first file fragment.
16. The method of claim 15,
The file storage method includes:
Further comprising requesting storage of at least one of the plurality of file storage information and file partition information including identification information of the plurality of file fragments and identification information of the cloud storage where the plurality of file fragments are stored.
16. The method of claim 15,
Dividing a file stored in the device into a plurality of file fragments,
Encrypting the file based on the encryption key; And
Generating the plurality of file fragments by partitioning the encrypted file and storing the encryption key in the device or in at least one of the plurality of cloud storage devices.
16. The method of claim 15,
Dividing a file stored in the device into a plurality of file fragments,
Dividing the file into a plurality of file fragments; And
Encrypting at least one piece of the plurality of file fragments based on an encryption key and storing the encryption key in the device or in at least one of the plurality of cloud storage,
Requesting the determined cloud storages to store each of the plurality of file fragments,
Requesting cloud storage corresponding to each of the plurality of file fragments to store each of the plurality of file fragments encrypted by the at least one fragment.
16. The method of claim 15,
The file storage method includes:
Further comprising deleting the stored file as each of the plurality of file fragments is respectively stored in the determined cloud storages.
16. The method of claim 15,
Wherein the file stored in the device is one of the plurality of cloud storages and a file stored together with the device,
The file storage method includes:
Further comprising: asking the cloud storage where the file is stored to delete the file.
Determining, by the device, the cloud storages in which each of the plurality of file fragments is stored corresponding to each of the plurality of file fragments divided from one file;
Receiving each of the plurality of file fragments from the determined cloud storages, respectively;
Generating the file by combining the received plurality of file fragments; And
And executing the generated file.
24. The method of claim 23,
The step of determining cloud storages in which each of the plurality of file fragments is stored, corresponding to each of the plurality of file fragments divided from the file,
Receiving, from at least one of the plurality of cloud storages, file partition information including identification information of the plurality of file fragments and identification information of cloud storages storing the plurality of file fragments; And
Determining cloud storages in which each of the plurality of file fragments is stored corresponding to each of the plurality of file fragments segmented from the file based on the received file segmentation information.
24. The method of claim 23,
Wherein a first file fragment of the plurality of file fragments is a fragment of a file stored in duplicate in at least two of the plurality of cloud storages,
Receiving each of the plurality of file fragments from the determined cloud storages,
Selecting one of the two or more cloud storages in response to the first file fragment; And
And receiving the first file fragment from the selected cloud storage.
24. The method of claim 23,
Wherein a second file fragment of the plurality of file fragments is a fragment of a file that is redundantly stored in two or more of the plurality of cloud storages,
Receiving each of the plurality of file fragments from the determined cloud storages,
And simultaneously receiving different portions of the second file fragment from the two or more cloud storages.
24. The method of claim 23,
Wherein the plurality of file fragments are encrypted fragments corresponding to each of the plurality of file fragments after the file is divided,
Wherein the generating of the file by combining the received plurality of file fragments comprises:
Receiving a decryption key for decrypting the encrypted plurality of file fragments from at least one of the device or the plurality of cloud servers;
Decoding the received plurality of file fragments; And
And combining the decrypted file fragments to generate the file.
24. The method of claim 23,
Wherein the plurality of file fragments are fragmented file fragments after the file is encrypted,
Wherein the generating of the file by combining the received plurality of file fragments comprises:
Receiving a decryption key for decrypting the encrypted file from at least one of the device or the plurality of cloud servers;
Generating the file by combining the received plurality of file fragments based on the received decryption key; And
And decrypting the generated file.

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