KR20170028194A - Methdo for using of contents and apparatus for the same - Google Patents

Abstract

The present invention relates to a method for using content by using a cloud server, in which a content provision apparatus provides content to a content consumption device by using a cloud server while the content provision apparatus divides the content into a plurality of chunks, randomly rearranges the chunks, and transmits the rearranged chunks to the cloud server so that the cloud server cannot reconstruct the original content, and in which the content provision apparatus transfers a chunk map, enabling the original content to be reconstructed, only to the content consumption device so that the content consumption device can reconstruct the original content by using the chunks and can use the original content. Furthermore the present invention also relates to an apparatus therefor. A method for using content according to an embodiment of the present invention may comprise the steps of: dividing, by a content provision apparatus, content into a plurality of content chunks; transmitting, by the content provision apparatus, the content chunks to a cloud server; generating, by the content provision apparatus, a chunk map including reconstruction information enabling the content to be reconstructed by using the content chunks; receiving, by the content provision apparatus, a request for transmission of the content from any one content consumption device; and transmitting, by the content provision apparatus, information about an address of the cloud server, in which the content chunks have been stored, and the chunk map to the content consumption device.

Description

[0001] METHOD AND APPARATUS FOR THE SAME [0002]

The present invention relates to a content using method using a cloud server, wherein a content providing apparatus provides content to a content consuming apparatus by using a cloud server, wherein the content is divided into a plurality of chunk units so that a cloud server can not restore the original, To a cloud server, and transmits a chunk map that can restore contents only to the content consumption device, thereby restoring the divided content in the content consumption device to use the content.

The contents described in this section merely provide background information on the present embodiment and do not constitute the prior art.

With the advancement of computer networks, existing computing environments that rely on independent hardware performance of each terminal evolve into a form of cloud computing that provides services according to the request of terminals by utilizing all the computing resources on the network .

Cloud computing can be defined as an on demand outsourcing service of computing resources through an information communication network such as the Internet. In a cloud computing environment, service providers integrate distributed data centers with virtualization technologies to provide services to users. Service users do not install and use computing resources such as application, storage, OS, security, etc. in the terminals owned by each user, but instead use services in the virtual space created through virtualization technology At a desired point in time. In other words, cull computing is a computing service in which computing resources such as hardware / software existing in an intangible form, such as a cloud, is borrowed and paid for as much as it is needed, Refers to a technology that integrates computing resources existing in a location with virtualization technology.

The content sharing method using the cloud computing technology is a method in which the content provider uploads the content to the server providing the cloud computing service and entrusts the supplying operation to the system that operates the corresponding service. According to this method, the content consumer can view or download the content held in the cloud computing server and use the content. However, there is a problem that content of a content provider is likely to be leaked to the outside at any time by keeping the content source itself in a cloud computing server. In addition, there is a problem that it is difficult to efficiently manage the storage space by being stored in the cloud computing server on a content-by-content basis.

On the other hand, in the case of peer-to-peer (P2P) communication, terminal content transmission is performed between terminals, and the server carries out only a simple control of transmission, but the content consumer must know the exact location of the content, There is a problem that the content provider can be adversely affected in many cases.

Korean Patent Laid-Open Publication No. 2014-0034222, published on March 19, 2014 (name: cloud file system for server-side deduplication of user-independent encrypted files)

Disclosure of Invention Technical Problem [8] The present invention has been proposed in order to solve the above-mentioned problems of the related art, and it is an object of the present invention to divide contents into a plurality of chunk units so that a content server can provide contents to a content consumption apparatus using a cloud server, There is provided a content using method and a device for using the content, in which a chunk map that is randomly arranged and then transmitted to a cloud server, and a chunk map capable of restoring contents only to a content consuming device is transmitted, There is a purpose.

However, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.

According to an aspect of the present invention, there is provided a method of using content, including: dividing a content into a plurality of chunk units; Transmitting the divided content chunks to the cloud server; Generating a chunk map including restoration information by which the content providing apparatus can restore the divided content chunks; Receiving the transmission request for the content from any one of the content consumption apparatuses; And transmitting the address information of the cloud server storing the divided content chunks and the chunk map to the content consuming device, by the content providing device.

In this case, the dividing step may divide the content by varying the chunk unit according to the property information of the content or predetermined conditions.

In addition, prior to the step of transmitting to the cloud server, the content providing apparatus may provide identification information and a serial number for each divided chunk; And randomizing the arrangement of the divided content chunks by the content providing apparatus.

Also, in the step of generating the chunk map, the content providing apparatus may generate at least one or more chunk maps according to predetermined conditions corresponding to the contents.

The content providing apparatus may further include a step in which the content providing apparatus confirms user information on the content consuming apparatus after receiving a transmission request for the content, Confirming a pre-generated chunk map corresponding to user information of the content consuming device; And transmitting the confirmed chunk map to the content consumption apparatus by the content providing apparatus.

In addition, in the step of transmitting to the content consumption apparatus, when the content is encrypted, an encryption key capable of decrypting the content may be transmitted to the content consumption apparatus.

According to an aspect of the present invention, there is provided a method of using content in a content consumption apparatus, the method comprising: requesting content transmission to a content providing apparatus to use the content; Receiving address information of a cloud server storing the content and a chunk map for the content from the content providing apparatus; Accessing the cloud server according to the received chunk map and receiving the divided content chunks for the content from the cloud server; And restoring the received content chunk according to the chunk map.

Further, the present invention can provide a computer-readable recording medium on which a program for executing the above-described method is recorded.

Further, the present invention can provide a computer program stored in a computer-readable recording medium which is implemented to carry out the method as described above.

According to an aspect of the present invention, there is provided a content providing apparatus including a content division module for dividing a content into a plurality of chunk units; A chunk map generation module for generating a chunk map capable of restoring the divided content chunks into the contents; And receiving the divided contents chunks from the cloud server and restoring the divided contents chunks to the contents when the request for transmission of the contents is received from any of the contents consuming apparatuses. Address information, and the chunk map to the content-consuming device.

According to an aspect of the present invention, there is provided a content consumption apparatus for requesting content transmission to a content providing apparatus for use of content, Receiving a chunk map for the content, accessing the cloud server according to the received chunk map to receive the divided content chunks for the content, and transmitting the received content chunks to a content restoration module module; And a contents restoration module for restoring the divided contents chunks into the contents according to the chunk map.

According to the content using method and apparatus therefor, the content providing apparatus does not always provide the content to the content consuming apparatus but transmits the content to the cloud server to use the storage space and then transmits the content to the cloud server It is possible to reduce the network consumption on the provider side by transmitting the content via the content consumption device.

Also, instead of transmitting the content source when transmitting the content to the cloud server, the content transmitting device transmits the content in divided unit of content chunks, and the chunk map that can be restored can be managed and distributed by the content providing device itself, It is possible to prevent the contents from being restored in advance.

In addition, the consumer can receive and use security-enhanced content anytime and anywhere through the cloud server. The cloud server distributes the content chunks divided into chunks instead of one complete content to a plurality of storage spaces And it is possible to use the storage space more efficiently.

In addition, various effects other than the above-described effects can be directly or implicitly disclosed in the detailed description according to the embodiment of the present invention to be described later.

1 is a block diagram illustrating a main configuration of a content using system according to an embodiment of the present invention.
2 is a block diagram showing a main configuration of a content consumption apparatus according to an embodiment of the present invention shown in FIG.
FIG. 3 is a block diagram illustrating a main configuration of a content providing apparatus according to an embodiment of the present invention shown in FIG. 1. Referring to FIG.
FIG. 4 is a block diagram illustrating a main configuration of a cloud server according to an embodiment of the present invention shown in FIG. 1. Referring to FIG.
5 is a flowchart illustrating a content using method according to an embodiment of the present invention.
6 is a flowchart illustrating a method of using contents according to another embodiment of the present invention.
7 is a flowchart illustrating a method of using contents according to an embodiment of the present invention.
FIG. 8 is a data flow chart for explaining a content using method according to an embodiment of the present invention.
9 to 12 are diagrams for explaining a content using method according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS For a more complete understanding of the nature and advantages of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings, in which:

In the following description and the accompanying drawings, detailed description of well-known functions or constructions that may obscure the subject matter of the present invention will be omitted. It should be noted that the same constituent elements are denoted by the same reference numerals as possible throughout the drawings.

The terms and words used in the following description and drawings are not to be construed in an ordinary sense or a dictionary, and the inventor can properly define his or her invention as a concept of a term to be described in the best way It should be construed as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

Also, terms including ordinal numbers such as first, second, etc. are used to describe various elements, and are used only for the purpose of distinguishing one element from another, Not used. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component.

In addition, when referring to an element as being "connected" or "connected" to another element, it means that it can be connected or connected logically or physically. In other words, it is to be understood that although an element may be directly connected or connected to another element, there may be other elements in between, or indirectly connected or connected.

Also, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It is also to be understood that the terms such as " comprising "or" having ", as used herein, are intended to specify the presence of stated features, integers, It should be understood that the foregoing does not preclude the presence or addition of other features, numbers, steps, operations, elements, parts, or combinations thereof.

In addition, embodiments within the scope of the present invention include computer readable media having or carrying computer executable instructions or data structures stored in computer readable media. Such computer-readable media can be any available media that is accessible by a general purpose or special purpose computer system. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or in the form of computer- But is not limited to, a physical storage medium such as any other medium that can be used to store or communicate certain program code means of the general purpose or special purpose computer system, .

In the following description and claims, "network" or "communication network" is defined as one or more data links that allow electronic data to be transmitted between computer systems and / or modules. When the information is transmitted or provided to a computer system via a network or other (wired, wireless, or a combination of wired or wireless) communication connection, the connection may be understood as a computer-readable medium. Computer readable instructions include, for example, instructions and data that cause a general purpose computer system or special purpose computer system to perform a particular function or group of functions. The computer executable instructions may be binary, intermediate format instructions, such as, for example, assembly language, or even source code.

In addition, the invention may be practiced with other computer systems, including personal computers, laptop computers, handheld devices, multiprocessor systems, microprocessor-based or programmable consumer electronics, network PCs, minicomputers, mainframe computers, a pager, and the like. < RTI ID = 0.0 > [0040] < / RTI >

The invention may also be practiced in distributed systems environments where both local and remote computer systems linked by a combination of wired data links, wireless data links, or wired and wireless data links over a network perform tasks. In a distributed system environment, program modules may be located in local and remote memory storage devices.

In addition, the content described in the present invention means data that can be divided into file units, and data that can be distributed and shared through the content use system of the present invention can be applied as contents of the present invention.

Hereinafter, a main structure of a content using system according to an embodiment of the present invention will be described first.

1 is a block diagram illustrating a main configuration of a content using system according to an embodiment of the present invention.

Referring to FIG. 1, a content using system 1000 according to the present invention includes a content consuming apparatus 100 as a main body for consuming content, a content providing apparatus 200 as a main body for providing content, and a function of storing content And a cloud server 300, which is a main body to perform the operation.

The content consumption apparatus 100 refers to a device of a user who wants to use content, and means a user apparatus that can transmit and receive various data via a communication network according to a request of a user. The content consumption apparatus 100 of the present invention can request the content providing apparatus 200 to provide the content through the communication network 500 and receive the chunk map from the content providing apparatus 200. In accordance with the received chunk map, The content stored in the server 300 can be received and used.

In order to perform the above-described process, the content consumption apparatus 100 of the present invention may include a browser for transmitting / receiving information, a memory for storing a program and a protocol, and a microprocessor for executing and controlling various programs .

The content consumption apparatus 100 according to the present invention can be used not only in a mobile terminal such as a smart phone, a tablet PC, a PDA (Personal Digital Assistants), and a portable multimedia player (PMP) A fixed terminal such as a TV (Smart TV), a desktop computer, or the like may be used.

The content consuming apparatus 100 according to the present invention can not enumerate all of the variations of the portable apparatus according to the convergence trend of the digital apparatus. However, the unit equivalent to the above- And any device capable of requesting, receiving, and reproducing contents according to a user's request is applicable to the content consumption apparatus 100 of the present invention.

In addition, the content consumption apparatus 100 of the present invention may include a terminal, a user equipment, a mobile station (MS), a mobile terminal (MT), a subscriber station (SS) May refer to a portable subscriber station (PSS), an access terminal (AT), or the like, and may include all or some of functions of a mobile terminal, a subscriber station, a mobile subscriber station, and the like.

The content providing apparatus 200 refers to a device of a user who wants to provide content to a content consumption apparatus 100 that wants to use the content. In particular, the content providing apparatus 200 of the present invention shares content to be shared via the cloud server 300. At this time, instead of sharing the content source itself, the content providing apparatus 200 divides the content into a plurality of chunk units, and then transmits the divided content to the cloud server 300. The content providing apparatus 200 of the present invention transmits a content chunk map generated at the time of content distribution to the content consumption apparatus 100 when a content request is received from the content consumption apparatus 100 to use the content, The device 100 can receive and use the content from the cloud server 300 using the chunk map. At this time, since the content received from the cloud server 300 is divided and randomly mixed by the content providing apparatus 200, the content consuming apparatus 100 transmits the content using the chunk map received from the content providing apparatus 200 Can be restored and used.

A content providing apparatus 200 according to the present invention may include a smart phone, a tablet PC, a PDA (personal digital assistant), a portable multimedia player (PMP), and a personal digital assistant A fixed terminal such as a smart TV, a desktop computer, and the like may be applied as well as the same mobile terminal. In addition, the content providing apparatus 200 of the present invention may be implemented as a web server or a web application server (WAS).

In the embodiment of the present invention, for convenience of description, the content providing apparatus 200 for providing content according to a content sharing entity and the content consuming apparatus 100 for consuming content will be separately described. However, It is not. That is, the content providing apparatus 200 of the present invention may provide the content but may also serve as the content consuming apparatus 100 that receives and uses the content. In addition, the content consumption apparatus 100 of the present invention plays a role of receiving and using content from the content providing apparatus 200, but may also serve to provide the content to the other content consumption apparatus 100.

In the following description, for convenience of explanation, it is assumed that the content consumption apparatus 100 of the present invention is a user's apparatus mainly consuming contents, and that the content providing apparatus 100 is a user's apparatus mainly providing contents do.

The cloud server 300 is a device for storing contents for contents sharing of the present invention. The cloud server 300 receives the divided contents from the contents providing apparatus 200 and stores and manages the contents in place of the contents providing apparatus 200. In response to a request from the content consumption apparatus 100, the content distribution apparatus 100 delivers the divided content.

The general cloud server receives the content transmitted from the content providing apparatus 200 and manages the received content. For example, in the case of the cloud server 300 applied to the CDN (Contents Delivery Network) service of the chunk type, the content delivered from the content providing apparatus 200 is directly divided into chunk units by the cloud server 300 Distribute it to the CDN node, and record and manage the information thereon. At this time, the content consumption apparatus 100 accesses the cloud server 300 to request the content, and receives the content according to the control of the cloud server 300.

The cloud server according to this general method stores and manages the content source, divides the content source into chunks, and distributes the same to the CDN node. Thus, the content providing apparatus 200 has information . In addition, the cloud server has a problem that it is vulnerable because it is easily exposed to external attacks, which is a device that a plurality of terminals can access and use.

Therefore, in order to solve such a problem, the cloud server 300 of the present invention holds the content provided by the content providing apparatus 200, but retains it in a divided form instead of retaining it in the original form, The content providing apparatus 200 directly transmits the information to the content consumption apparatus 100. The content providing apparatus 200 of the present invention has the following advantages.

Although the cloud server 300 of the present invention is assumed to exist in the form of a single device in the drawing, the present invention is not limited thereto and may be implemented by a plurality of server groups. In this case, each of the cloud servers 300 may store different content chunks for one content provided by the content providing apparatus 200. [ For example, one content file that the content providing apparatus 200 wants to store in the cloud server 300 is divided into 10 pieces of chunks of 1, 2, 3, 4, 5, 6, 7, 8, Respectively. It is assumed that the cloud server 300 exists in three groups: a cloud server A, a cloud server B, and a cloud server C. [ At this time, the content providing apparatus 200 can transmit 1, 3, and 5 content chunks to the cloud server A, transmit 2, 4, and 6 content chunks to the cloud server B, Lt; / RTI >

The cloud servers A, B, and C merely store the content chunks transmitted from the content providing apparatus 200, and can not determine which content chunk the content owns, It is not necessary to confirm whether or not it holds the information.

In the above example, when the cloud server A is designed in a hierarchical form for controlling the remaining cloud servers B and C, the content providing apparatus 300 transmits the content chunk to the cloud server A, and the cloud server A transmits the content chunk to the cloud server A. [ B, and C to distribute the content chunks. In this case, the cloud server A can manage what content chunks are held in the cloud servers B and C.

The cloud server 300 according to the present invention only plays the role of storing the content chunks delivered by the content providing apparatus 200 regardless of the implementation method and transmits the information for restoring the divided content to the content providing apparatus 200 ), It is impossible to access the content source.

Therefore, even if the information held by the cloud server 300 due to an external attack is leaked, or even if the content chunks transmitted to the cloud server 300 by the content providing apparatus 200 leak out in the middle, the malicious user The content chunks divided by the content chunks can not be restored.

In addition, in the embodiment of the present invention, the subject receiving and storing the divided content from the content providing apparatus 200 is implemented as a server, but the present invention is not limited thereto, Alternatively, the content consumption device may receive and store the divided content. In other words, the subject storing the divided contents provided by the contents providing apparatus 200 of the present invention includes a storage space for storing specific information, and receives the divided contents from the contents providing apparatus 200, Any device capable of performing the function of transmitting the divided contents according to the request of the consuming device 100 may replace the role of the cloud server 300 of the present invention.

The contents consuming apparatus 100, the contents providing apparatus 200, and the processor mounted on the cloud server 300 according to the embodiment of the present invention may be a processor And process program instructions for executing the method according to the invention. In one implementation, the processor may be a single-threaded processor, and in other embodiments, the processor may be a multithreaded processor. Further, the processor is capable of processing instructions stored on a memory or storage device.

Information transmitted and received between the content consumption apparatus 100, the content providing apparatus 200, and the cloud server 300 can be transmitted and received via the communication network 500. At this time, the content providing apparatus 200 and the cloud server 300 can transmit and receive information through a public network such as the Internet network. Meanwhile, the content consumption apparatus 100 and the content providing apparatus 200 can transmit and receive information through a private communication network such as a local area network or a private network. However, the present invention is not limited to the above example. When the contents providing apparatus 200 is implemented as a web server which can be easily accessed by anyone, the contents consuming apparatus 100 may access the contents providing apparatus 200 through the Internet have.

The communication network structure of the present invention has been briefly described, and the communication network of the present invention includes a cloud computing network capable of storing computing resources such as hardware and software and providing the computing resources required by the client to the terminal . Here, cloud computing refers to a computer environment in which information is permanently stored on a server on the Internet and temporarily stored in a client terminal such as a desktop, a tablet computer, a notebook, a netbook, or a smart phone. Cloud computing, Refers to a computer environment access network that stores information on a server on the Internet and makes the information available anytime and anywhere through various IT devices. The communication network of the present invention can be applied not only to a closed network such as a LAN (Local Area Network) and a WAN (Wide Area Network), an open network such as the Internet, but also to a Code Division Multiple Access (CDMA), a Wideband Code Division Multiple Access ), GSM (Global System for Mobile Communications), LTE (Long Term Evolution) and EPC (Evolved Packet Core), and next-generation networks and cloud computing networks to be implemented in the future.

Hereinafter, the main configuration and operation method of the content consumption apparatus 100 according to the embodiment of the present invention will be described.

2 is a block diagram showing a main configuration of a content consumption apparatus according to an embodiment of the present invention shown in FIG.

1 and 2, a content consumption apparatus 100 according to an embodiment of the present invention includes a consuming apparatus communication unit 110, a consuming apparatus input unit 120, a consuming apparatus control unit 130, a consuming apparatus storage unit 140 And a consuming device output unit 150. [0035]

The consuming device communication unit 110 plays a role of supporting information transmission and reception with the content providing apparatus 200 and the cloud server 300. The consuming device communication unit 110 of the present invention requests content from the content providing device 200 at the request of the user. The consuming device communication unit 110 receives the chunk map for the content from the content providing device 200. [ The consuming device communication unit 110 transmits the received chunk map to the consuming device control unit 130 and requests and receives a content chunk from the cloud server 300 under the control of the consuming device control unit 130, .

The consuming device input unit 120 transmits a variety of information such as numbers and character information input from the user, various function settings, and signals inputted in relation to the function control of the content consuming apparatus 100, to the consuming apparatus control unit 130. In particular, the consuming device input unit 120 of the present invention can support user input for a content request. For example, the consuming device input unit 120 of the present invention may be configured to allow the content providing apparatus 200 to access the content providing apparatus 200 in a manner supported by the content providing apparatus 200, such as a browser, ≪ RTI ID = 0.0 >). ≪ / RTI > In a state where the content providing apparatus 200 is connected to the user apparatus input unit 120, the user input unit 120 receives a user input for selecting at least one content provided by the content providing apparatus 200, To the device (200). And can support various user inputs related to execution and playback of contents.

The consumer input unit 120 may include at least one of a key input unit such as a keyboard and a keypad, a touch input unit such as a touch sensor or a touch pad, a voice input unit, a gyro sensor, a geomagnetism sensor, And gesture input means including a gesture input means.

In addition, it can include all forms of input that are currently under development or can be developed in the future.

The consuming apparatus control unit 130 performs overall control of the content consuming apparatus 100 and includes hardware at least one processor including a CPU (Central Processing Unit), and execution memory For example, a register and / or a RAM (Random Access Memory), and a bus (BUS) for inputting / outputting at least one or more data to / from the processor and the memory. And also includes predetermined program routines or program data loaded into the execution memory from a predetermined recording medium to perform functions defined in the content consuming apparatus 100 by software and processed by the processor . In other words, in order to perform the process of requesting the content, receiving the content, and reproducing the content according to the embodiment of the present invention, a component that can be processed by software among the functions provided in the content consumption apparatus 100, 130).

In particular, the consuming apparatus control unit 130 according to the embodiment of the present invention may include a content processing module 131 and a content restoration module 132. [

The content processing module 131 supports the process of accessing the content providing apparatus 200 at the request of the user. Then, the content processing module 131 requests the content providing apparatus 200 to provide the content requested by the user. The content processing module 131 receives the chunk map of the content from the content providing apparatus 200 and the address of the cloud server 300, And then receive the content from the cloud server 300 according to the chunk map.

The chunk map for the content received from the content providing apparatus 200 includes reconstruction information for reconstructing the divided content chunks. The content processing module 131 generates a chunk map for each content chunk in accordance with the chunk map It is possible to request content transmission to the cloud server 300. When all the content chunks are delivered from the cloud server 300, the content restoration module 132 delivers the chunk map to restore the content chunks.

The content processing module 131 may perform processes such as execution and playback of the content restored by the content restoration module 132. [

The content restoration module 132 restores the content. When the content chunks are transmitted from the cloud server 300, the content restoration module 132 sequentially restores the content chunks according to the chunk map, have. The content restoration module 132 of the present invention may request the content providing apparatus 200 to decrypt the content chunks by receiving the encryption key when each content chunk is encrypted.

The consuming device storage unit 140 may temporarily store various data generated during execution of the application program, including an application program required for the functional operation according to the embodiment of the present invention. In particular, the consuming device storage unit 140 according to the embodiment of the present invention may store the chunk map 141 and the content chunk 142. [

The consuming device storage unit 140 may include a program area and a data area. The program area stores relevant information for operating a device such as an operating system (OS) that boots the content consumption apparatus 100. [ The data area is an area in which data generated according to use of the content consumption apparatus 100 is stored. Various commands for streaming data processing can be stored as described above. The consuming device storage unit 140 may be a flash memory, a hard disk, a memory of a multimedia card micro type (e.g., SD or XD memory), a RAM (RAM) And a storage medium such as a ROM (Read Only Memory).

The consuming device output unit 150 displays information on a series of operation states and operation results generated in association with content consumption. For example, when the content of the present invention is the moving image content, the consuming device output unit 150 may output the image and sound information generated when the moving image is reproduced.

The consuming device output unit 150 may be implemented in the form of one touch panel (or touch screen) together with the consuming device input unit 120 as described above, and may be implemented with the consuming device input unit 120 , Various information generated according to the touch operation of the user can be displayed.

In addition, the consuming device output unit 150 of the present invention may be a liquid crystal display (LCD), a thin film transistor (TFT) LCD, an organic light emitting diode (OLED), a light emitting diode An active matrix organic LED, a flexible display, and a three-dimensional display. Some of these displays may also be configured to be transparent or light transmissive so that they can be seen through. This can be configured as a transparent display including TOLED (Transparent OLED).

As described above, the main components of the content consumption apparatus 100 have been described with reference to FIG. However, not all of the components shown in FIG. 2 are essential components, and the content consuming apparatus 100 may be implemented by more components than the illustrated components, (100) may be implemented. It is needless to say that the positions of the main components of the content consumption apparatus 100 shown in FIG. 2 may be changed for convenience or for other reasons.

Hereinafter, the main configuration and operation method of the content providing apparatus 200 according to the embodiment of the present invention will be described.

FIG. 3 is a block diagram illustrating a main configuration of a content providing apparatus according to an embodiment of the present invention shown in FIG. 1. Referring to FIG.

1 and 3, a content providing apparatus 200 according to an exemplary embodiment of the present invention may include a providing apparatus communication unit 210, a providing apparatus control unit 230, and a providing apparatus storage unit 240. have.

The providing apparatus communication unit 210 plays a role of supporting information transmission / reception between the content consumption apparatus 100 and the cloud server 300. In particular, the providing device communication unit 210 of the present invention receives a content request from the content consuming device 100 and delivers the chunk map to the content consuming device 100. The providing device communication unit 210 of the present invention transmits the content chunk to the cloud server 300.

The providing apparatus control unit 230 performs overall control of the content providing apparatus 200 according to an embodiment of the present invention and includes a content providing module 231, a content unauthorized module 232, a chunk map generating module 233, And a user interface module 234.

More specifically, the content providing module 231 of the present invention receives a request from the content consuming apparatus 100 through the providing apparatus communication unit 210 or transmits information to the content consuming apparatus 100 . And transmits information to the cloud server 300. In other words, when the content is divided into chunks by the content division module 232, the content providing module 231 transmits the divided content chunks to the storage device 210 through which the content chunks are stored To the cloud server (300). When the content request is transmitted from the content consumption apparatus 100, the chunk map generation module 233 transmits the chunk map through the providing apparatus communication unit 210.

The content segmentation module 232 divides the content. The content segmentation module 232 of the present invention can divide one content into a predetermined size or a different size. One piece of content is referred to as a content chunk. Here, one content chunk can be divided into 4 kb, 16 kb, and the like, and one content can be divided into at least one content chunk. The content division module 232 may assign a content chunk identification number and a serial number to each of the divided contents. Thereafter, the content segmentation module 232 may perform a process for changing the arrangement of the divided content chunks. When the process is completed, the content segmentation module 232 may guide the content distribution module 231 to the process of being transferred to the cloud server .

The chunk map generation module 233 generates a chunk map for restoring the content segmented by the content segmentation module 232. The chunk map of the present invention may include a content name, a total size of contents, and contents restoration information, and the contents restoration information is for restoring contents, and may include contents chunk identification information and a serial number. When the user request is transmitted by the content providing module 231, the generated chunk map may be transmitted to the content consuming device 100 through the providing device communication unit 210.

In addition, the chunk map generation module 233 according to the embodiment of the present invention can check the user information of the content consumption apparatus 100 requesting the content and generate different chunk maps according to the corresponding conditions according to the user information. Accordingly, even if the content consumption apparatus 100 requests the same content, the chunk map capable of restoring the same can be received and used in different forms.

The user interface module 234 of the present invention plays a role of supporting and processing a user's access. For example, when the content providing apparatus 200 of the present invention is implemented in the form of a user terminal, it supports input of various information for operating the content providing apparatus 200, and outputs various information that may be generated at the time of content reproduction . In addition, when the content providing apparatus 200 is implemented as a web server accessible through a communication network, the user can access the content providing apparatus 200 through a separate device, and the user interface module 234 ) May be responsible for processing and supporting various user requests related to user input and output.

The provision device storage unit 240 stores the chunk map generated by the chunk map generation module 233. [ Here, the chunk map may have only one chunk map based on the content, and a plurality of chunk maps may exist according to the condition of the content.

As described above, the main components of the content providing apparatus 200 have been described with reference to FIG. However, the components shown in FIG. 3 are not all essential components, and the content providing apparatus 200 may be implemented by a larger number of components than the illustrated components, (200) may be implemented. It is needless to say that the location of the main components of the content providing apparatus 200 shown in FIG. 3 may be changed for convenience or for other reasons.

Hereinafter, the main configuration and operation method of the cloud server 300 according to the embodiment of the present invention will be described.

FIG. 4 is a block diagram illustrating a main configuration of a cloud server according to an embodiment of the present invention shown in FIG. 1. Referring to FIG.

1 and 4, the cloud server 300 of the present invention may include a cloud server communication unit 310, a cloud server control unit 320, and a cloud server storage unit 330.

The cloud server communication unit 310 supports transmission and reception of information with the content consumption apparatus 100 and the content providing apparatus 200. [ In particular, the cloud server communication unit 310 of the present invention can receive one or more pieces of content chunks from the content providing apparatus 200. The cloud server communication unit 310 receives a request for transmitting a content chunk from the content consumption apparatus 100 and transmits the content chunk transmitted from the content providing apparatus 200 to the content consumption apparatus 100 can do.

The cloud server control unit 320 is configured to perform overall control of the cloud server 300 according to an embodiment of the present invention and may include a service management module 321 and a service providing module 322. [

The service management module 321 receives the content chunks from the content providing device 200, and stores and manages the content chunks. At this time, the service management module 321 of the present invention can perform a process of registering and authenticating information on the content providing apparatus 200 when a service is provided by allocating a member-zero storage space.

In addition, the service management module 321 may manage information on the content chunk 331 stored in the cloud server storage unit 330. For example, the service management module 321 supports the process of deleting the stored content chunks according to a request from the content providing device 200, and stores a predetermined condition of the content providing device 200, a service usage class, And the like, according to various criteria.

In addition, when a content provision request is not received from the content consumption apparatus 100 for a predetermined period of time, the service management module 321 may delete the content chunk 331 stored in the cloud server storage unit 330.

The service providing module 322 may perform a role of delivering a content chunk in response to a request from the content consuming device 100. [

The cloud server storage unit 330 may store and manage various kinds of information necessary for the operation of the cloud server 300 according to an embodiment of the present invention. In particular, it stores the content chunk 331 transmitted from the content providing apparatus 200.

The main configuration and operation method of the cloud server 300 according to the embodiment of the present invention have been described above.

The hardware configuration of the cloud server 300 according to the embodiment of the present invention is the same as that of a typical web server or network server. However, the software includes a program module implemented through a language such as C, C ++, Java, Visual Basic, Visual C, or the like.

On the other hand, the memory mounted on each device of the present invention stores information in the device. In one implementation, the memory is a computer-readable medium. In one implementation, the memory may be a volatile memory unit, and in other embodiments, the memory may be a non-volatile memory unit. In one implementation, the storage device is a computer-readable medium. In various different implementations, the storage device may comprise, for example, a hard disk device, an optical disk device, or any other mass storage device.

In addition, the term '~ module' used in the embodiment of the present invention means a software component, and '~ module' performs certain roles. By way of example, '~ module' may include components such as software components, object-oriented software components, class components and task components, and processes, functions, attributes, procedures, Routines, segments of program code, drivers, data, databases, data structures, tables, arrays, and variables. In addition, the functions provided in the components and 'modules' may be combined into a smaller number of components and '~ modules' or further separated into additional components and 'modules'.

Although the present specification and drawings describe exemplary device configurations, the functional operations and subject matter implementations described herein may be embodied in other types of digital electronic circuitry, or alternatively, of the structures disclosed herein and their structural equivalents May be embodied in computer software, firmware, or hardware, including, or in combination with, one or more of the foregoing. Implementations of the subject matter described herein may be embodied in one or more computer program products, i. E. One for computer program instructions encoded on a program storage medium of the type for < RTI ID = 0.0 & And can be implemented as a module as described above. The computer-readable medium can be a machine-readable storage device, a machine-readable storage substrate, a memory device, a composition of matter that affects the machine readable propagation type signal, or a combination of one or more of the foregoing.

Hereinafter, a content using method according to an embodiment of the present invention will be described.

5 is a flowchart illustrating a content using method according to an embodiment of the present invention.

1 and 5, a content providing apparatus 200 according to the present invention includes a content providing apparatus 200, a content providing apparatus 200, a content providing apparatus 200, (Step S101). In step S101, the content is divided into a plurality of chunk units.

Then, the content providing apparatus 200 assigns the identification information and the serial number of each divided chunk, and rearranges the arrangement of the content chunks. That is, a shuffling step is performed to change the order of content chunks (S103).

Thereafter, the content providing apparatus 200 generates a chunk map that can restore the divided content chunks into one content (S105). The generated chunk map may be configured to include a content name, an entire content size, content restoration information (content chunk identification information, and serial number).

The content providing apparatus 200 transmits the divided content chunks to the cloud server 300 (S105). At this time, a process of creating or changing a chunk map after transmitting the content chunk to the cloud server 300 may be performed. That is, it is possible to perform a necessary process so that accurate information about the cloud server 300 is written in the chunk map.

The content providing apparatus 200 of the present invention transmits the divided content chunks randomly to the cloud server 300 while not transmitting the chunks that can restore the content chunks to the cloud server 300. [ In this way, the cloud server 300 merely archives and manages only the divided content chunks, and can not restore the content, so that access to the content is essentially impossible.

Thereafter, the content providing apparatus 200 of the present invention receives a content request from the content consuming apparatus 100 (S107).

Instead of transmitting content to the content consumption apparatus 100, the content providing apparatus 200 may transmit a chunk map capable of restoring the content and address information of the cloud server 300 storing the content chunk, The consumer device 100 may support the process of receiving the divided content chunks from the cloud server 300 and restoring them into one content (S111).

In addition, the content providing apparatus 200 of the present invention can perform a process of authenticating a corresponding user by checking user information on the content consumption apparatus 100 after step S107, May be performed.

The above process will be described in more detail with reference to FIG.

6 is a flowchart illustrating a method of using contents according to another embodiment of the present invention.

1 and 6, a content providing apparatus 200 according to the present invention includes a content providing apparatus 200, a content providing apparatus 200, (Step S201). In step S201, the content is divided into a plurality of chunk units.

At this time, the content providing apparatus 200 of the present invention can variably adjust the chunk unit based on the attribute information of the content. For example, if the content is video content, the metadata unit may check the metadata, which is attribute information, to variably adjust the chunk unit so that the content is divided in units of scenes. In addition, when the content is video content and includes a scene that can not be viewed by a minor, a chunk unit can be variably controlled so that only a scene of 'minor irregularity' corresponding to a preset condition is divided into separate content chunks have. In addition, when the content is a file classified as a specific item, the attribute information for the item may be checked to variably control the chunk unit so that the content is divided into items.

Then, the content providing apparatus 200 gives the identification information and the serial number of each divided content chunk, and rearranges the arrangement of the content chunks. That is, a shuffling step is performed to change the order of content chunks (S203).

Thereafter, the content providing apparatus 200 generates a chunk map capable of restoring the divided content chunks into one content (S205). At this time, instead of generating one chunk map for each content, a plurality of chunks may be generated for each condition.

For example, it is assumed that the content providing apparatus 200 of the present invention is a server located in an in-house system. It is assumed that the content of the present invention is an intra-company shared Excel file composed of a plurality of sheets of A, B, and C, sheet A is accessible to employee positions, sheet B is accessible to proxy, It is assumed that exaggerated positions are accessible. The content providing apparatus 200 of the present invention can generate a plurality of chunk maps so that only the sheets corresponding to the titles are browsed.

Then, the content providing apparatus 200 transmits the divided content chunks to the cloud server 300 (S207). At this time, a process of creating or changing a chunk map after transmitting the content chunk to the cloud server 300 may be performed. That is, it is possible to perform a necessary process so that accurate information about the cloud server 300 is written in the chunk map.

The content providing apparatus 200 of the present invention transmits the divided content chunks randomly to the cloud server 300 while not transmitting the chunks that can restore the content chunks to the cloud server 300. [

Thereafter, the content providing apparatus 200 of the present invention receives a content request from the content consuming apparatus 100 (S207). At this time, the content providing apparatus 200 of the present invention may receive user information from the content consumption apparatus 100 together. Herein, the user information means information for distinguishing the user differently from the identification information for identifying the content consumption apparatus 100. In addition, when the content consumption apparatus 100 is registered in advance, the content providing apparatus 200 of the present invention receives only the identification information from the content consumption apparatus 100 and confirms previously stored user information in accordance with the identification information You may.

In this manner, when the user information is confirmed, the content providing apparatus 200 confirms the chunk map corresponding to the received user information (S211). In the above-described example, when the identified user information is job title information, the content providing apparatus 200 confirms the created chunk map corresponding to the job title information.

Then, the address information of the cloud server 300 having the checked chunk map and the content chunk is transmitted to the content consumption apparatus 100 (S213). At this time, if the content chunks of the present invention are distributed and stored in a plurality of storage locations, information on the storage locations may be transmitted to the content consumption apparatus 100 in response to the content chunks. The content consuming apparatus 100 receives the content chunk, accesses the corresponding storage location, for example, the cloud server 300, requests and receives a corresponding content chunk in accordance with the received chunk map, And then reproduced.

Hereinafter, a content use method in the content consumption apparatus 100 according to the embodiment of the present invention will be described.

7 is a flowchart illustrating a method of using contents according to an embodiment of the present invention.

Referring to FIGS. 1 and 7, a content consumption apparatus 100 according to an exemplary embodiment of the present invention accesses a content providing apparatus 200 and requests a specific content according to a request of a user (S301). The process of requesting content may include a process of accessing the content providing apparatus 200, a process of displaying a content list, a process of selecting a specific content according to a user input, and the like.

Thereafter, in response to the content request, the content consumption apparatus 100 of the present invention transmits the address information of the cloud server 300, which can download the content from the content providing apparatus 200, and a chunk map, (S303).

The content consumption apparatus 100 receiving the chunk map requests the content to the cloud server 300 according to the chunk map (S305). At this time, the content consumption apparatus 100 according to the present invention can sequentially transmit and receive respective content chunks in accordance with a chunk map, and sequentially transmit the content chunks to the cloud server 300, It can also be received.

In addition, when the cloud server 300 of the present invention is implemented as a single server, it can deliver content chunks to the content consumption apparatus 100 sequentially or collectively according to a request of the content consumption apparatus 100. On the other hand, if the cloud server 300 of the present invention is implemented as a plurality of servers, if the content chunks provided by the content providing apparatus 200 are distributed and stored in a plurality of servers, The server may support a process of connecting to the content server 100 after confirming the content chunk, or may receive the content chunk from the confirmed server and deliver the content chunk to the content consumer apparatus 100.

In addition, when the content chunk requested by the content consumption apparatus 100 is not stored, the cloud server 300 of the present invention requests the content providing apparatus 200 to receive the corresponding content chunk and transmits the chunk to the content consumption apparatus 100 It can support the transmission process.

When the content chunk divided into chunk units is received from the cloud server through the above process (S307), the content consuming apparatus 100 of the present invention can perform the process of restoring the content according to the chunk map (S309).

The method of using contents according to the embodiment of the present invention will be described in terms of data flow.

FIG. 8 is a data flow chart for explaining a content using method according to an embodiment of the present invention, and FIGS. 9 to 12 are illustrations for explaining a content using method according to an embodiment of the present invention.

Referring to FIG. 8, the content providing apparatus 200 divides content into a plurality of chunk units for the embodiment of the present invention (S401). The divided content chunks may have a structure of chunk identification information 701, chunk length 702, and chunk data 703 as shown in FIG. The chunk identification information may be a combination of a random value (utime) and a MAC address or a combination of a random value and a serial number, and a chunk length 702 means a size of the content chunk. Here, the chunk length 702 may be set differently for each content chunk in accordance with the property information of the content or predetermined conditions. The chunk data 703 includes contents of the contents.

The content providing apparatus 200 divides one content into a plurality of chunk units and arranges the order thereof randomly (S403).

Then, a chunk map capable of restoring the divided contents chunks into contents is generated (S405). FIG. 10 shows an example of a chunk map, which may include a content name 704, an overall content size 705, and content reconstruction information 706. Herein, the content restoration information 706 lists the content chunk identification information and the serial number for each content chunk in the order rearranged in step S403. The content consumption device 100 deletes the content chunk ID, Can be restored to one content.

11, the content providing apparatus 200 may divide one content file 707 into a plurality of content chunks (708). At this time, each content chunk is given an identification number (id) and a serial number, and the content providing device 200 can complete the chunk map by rearranging the content chunks and rearranging them in the chunk map.

When the generation of the chunk map is completed, the content providing apparatus 200 delivers the divided content chunks to the cloud server 300 (S407), and the cloud server 300 stores the divided content (S409).

Thereafter, the content consumption apparatus 100 requests the content providing apparatus 200 to provide the content (S411). The content providing apparatus 200 receiving the content transmits the chunk map including the address information of the cloud server 300 and the information for restoring the content to the content consumption apparatus 100 instead of the content (413). Then, the content consumption apparatus 100 requests the corresponding cloud server 300 according to the chunk map (S415).

The cloud server 300 transmits the divided content chunks to the content consuming device 100 in response to a request from the content consuming device 100 in step S417 and the content consuming device 100 transmits the received content chunks in accordance with the chunk map The content is restored to the content (S419).

12, the content consumption apparatus 100 lists the received content chunks according to the chunk map 801 (802), reorders the listed content chunks according to the chunk map (803 ) And one content file (804).

Thereafter, the content consumption apparatus 100 can execute the restored content (S421).

As described above, according to the embodiment of the present invention, in the provider aspect, the content providing apparatus 200 does not provide the content to the content consuming apparatus 100 every time but transmits the content to the cloud server 300 The content transmitted via the cloud server 300 is transmitted to the content consumption apparatus 100, thereby reducing network consumption on the provider side.

In addition, instead of transmitting the content source when transmitting the content to the cloud server 300, the content delivery apparatus 100 transmits the content in a unit of divided content chunks, and the chunk map capable of restoring the chunk map is directly managed and distributed by the content providing apparatus 100 itself It is possible to prevent the malicious path or the case where the content is restored by the user in advance.

In addition, in terms of the consumer, the content consumption apparatus 100 can receive and use security-enhanced contents anytime and anywhere through the cloud server 300, and the cloud server 300 can receive the content, The content chunks can be distributed and stored in a plurality of storage spaces, thereby enabling more efficient use of the storage space.

The contents using method according to the embodiment of the present invention has been described above.

The method of using contents of the present invention as described above may be provided in the form of a computer-readable medium suitable for storing computer program instructions and data. A program recorded on a recording medium for implementing a method of using a content according to an embodiment of the present invention includes a step of dividing a content into a plurality of chunk units by a content providing apparatus and a step in which the content providing apparatus transmits the divided content chunks to a cloud server Generating a chunk map including restoration information by which the content providing apparatus can restore the divided content chunks, transmitting the chunk map from the content providing apparatus to the content transmitting apparatus, And transmitting the address information of the cloud server storing the divided content chunks and the chunk map to the content consuming device, and the like.

Such computer-readable media suitable for storing computer program instructions and data include, for example, magnetic media such as hard disks, floppy disks and magnetic tape, compact disk read only memory (CD-ROM) Optical media such as a DVD (Digital Video Disk), a magneto-optical medium such as a floppy disk, and a ROM (Read Only Memory), a RAM , Random Access Memory), flash memory, EPROM (Erasable Programmable ROM), and EEPROM (Electrically Erasable Programmable ROM). The processor and memory may be supplemented by, or incorporated in, special purpose logic circuits.

The computer readable recording medium may also be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. The functional program for implementing the present invention and the related code and code segment may be implemented by programmers in the technical field of the present invention in consideration of the system environment of the computer that reads the recording medium and executes the program, Or may be easily modified or modified by the user.

In addition, a computer program recorded on a computer-readable recording medium as described above includes instructions for performing the functions as described above, distributed and distributed through a recording medium, read and installed in a specific device, a specific computer, Thereby performing the above-described functions.

In order to allow the computer to read the program recorded on the recording medium and to execute the functions implemented by the program, the computer program described above may be stored in a computer such as a C, C ++ , JAVA, machine language, and the like, and code for a program command encoded in a computer language.

The code may include a function code related to a function or the like that defines the functions described above and may include an execution procedure related control code necessary for the processor of the computer to execute the functions described above according to a predetermined procedure. In addition, such code may further include memory reference related code as to what additional information or media needed to cause the processor of the computer to execute the aforementioned functions should be referenced at any location (address) of the internal or external memory of the computer . In addition, when a processor of a computer needs to communicate with any other computer or server that is remote to execute the above-described functions, the code may be stored in a memory of the computer using a communication module of the computer, It may further include a communication-related code such as how to communicate with another computer or a server, and what information or media should be transmitted or received during communication.

While the specification contains a number of specific implementation details, it should be understood that they are not to be construed as limitations on the scope of any invention or claim, but rather on the description of features that may be specific to a particular embodiment of a particular invention Should be understood. Certain features described herein in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented in multiple embodiments, either individually or in any suitable subcombination. Further, although the features may operate in a particular combination and may be initially described as so claimed, one or more features from the claimed combination may in some cases be excluded from the combination, Or a variant of a subcombination.

Likewise, although the operations are depicted in the drawings in a particular order, it should be understood that such operations must be performed in that particular order or sequential order shown to achieve the desired result, or that all illustrated operations should be performed. In certain cases, multitasking and parallel processing may be advantageous. Also, the separation of the various system components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the described program components and systems will generally be integrated together into a single software product or packaged into multiple software products It should be understood.

The present invention relates to a content using method using a cloud server, wherein a content providing apparatus provides content to a content consuming apparatus by using a cloud server, wherein the content is divided into a plurality of chunk units so that a cloud server can not restore the original, To a cloud server, and transmits a chunk map that can restore contents only to the content consumption device, thereby restoring the divided content in the content consumption device to use the content.

According to the present invention, instead of transmitting a content source when a content is transmitted to a cloud server, the content providing apparatus transmits and manages a chunk map capable of restoring the content in units of divided content chunks, It is possible to prevent the content from being restored by the route or by the user in advance, thereby contributing to the development of the content industry using the cloud system.

In addition, since the present invention is not only possible to be marketed or operated, but also can be practically and practically carried out, it is industrially applicable.

100: content consumption device 110: consumption device communication part
120: Consumer device input unit 130: Consumer device control unit
140: Consumption device storage part 150: Consumer device output part
200: content providing apparatus 210: providing apparatus communication section
230: Provided device control unit 240: Provided device storage unit
300: Cloud server 310: Cloud server communication part
320: Cloud server control unit 330: Cloud server storage unit
500: communication network 1000: content use system

Claims (11)

Dividing the content into a plurality of chunk units;
Transmitting the divided content chunks to the cloud server;
Generating a chunk map including restoration information by which the content providing apparatus can restore the divided content chunks;
Receiving the transmission request for the content from any one of the content consumption apparatuses; And
Transmitting the address information of the cloud server storing the divided content chunks and the chunk map to the content consuming device;
Wherein the content is stored in the storage unit. The method according to claim 1,
The dividing step
Wherein the content is divided by varying the chunk unit according to attribute information of the content or predetermined conditions. The method according to claim 1,
Prior to transmitting to the cloud server,
Providing the content providing apparatus with identification information and a serial number for each divided chunk; And
Wherein the content providing apparatus randomly rearranges the arrangement of divided content chunks;
Further comprising the step of: The method according to claim 1,
The step of generating the chunk map
Wherein the content providing apparatus generates at least one or more chunk maps according to preset conditions corresponding to the contents. The method according to claim 1,
After receiving the transmission request for the content,
Confirming user information on the content consumption apparatus by the content providing apparatus;
Further comprising:
Wherein the step of transmitting to the content consuming device
Checking the chunk map generated by the content providing device in response to the user information of the content consumption device; And
Transmitting the confirmed chunk map to the content consuming device by the content providing device;
Wherein the content is stored in the storage unit. The method according to claim 1,
In the step of transmitting to the content consumption apparatus,
If the content is encrypted, transmitting an encryption key for decrypting the content to the content consuming device. Requesting content transmission to a content providing apparatus to use the content;
Receiving address information of a cloud server storing the content and a chunk map for the content from the content providing apparatus;
Accessing the cloud server according to the received chunk map and receiving the divided content chunks for the content from the cloud server; And
Restoring the received content chunks according to the chunk map;
Wherein the content-consuming device is a content-consuming device. A computer-readable recording medium storing a program for executing the method according to any one of claims 1 to 7. A computer program embodied in computer readable recording medium which is embodied to execute the method recited in any one of claims 1 to 7. A content division module for dividing the content into a plurality of chunk units;
A chunk map generation module for generating a chunk map capable of restoring the divided content chunks into the contents; And
And receiving the divided contents chunks from the cloud server and restoring the divided contents chunks to the contents when the request for transmission of the contents is received from any one of the contents consuming apparatuses, Information and the chunk map to the content-consuming device;
The content providing apparatus comprising: A content providing apparatus for requesting a content to be transmitted to a content providing apparatus, receiving address information of a cloud server storing the content from the content providing apparatus and a chunk map for the content, A content processing module for accessing a cloud server and receiving divided content chunks for the content and delivering the received content chunks to a content restoration module; And
A content restoration module for restoring the divided contents chunks into the contents according to the chunk map;
And a content server for storing content.

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