KR101413925B1 - Apparatus and method for transmitting and receiving data - Google Patents

Abstract

The present invention relates to data transmission and reception, and data security can be implemented by transmitting and using data only to a receiving side having unique information on the transmitting side.

       Security, encryption, unique information, transmission, reception

Description

[0001] Apparatus and method for transmitting and receiving data [0002]

1 is a schematic block diagram in which data transmission /

2 is a block diagram illustrating overall configurations in which data transmission and reception of the present invention is implemented;

Fig. 3 is a block diagram showing another configuration of the transmitter / receiver of the present invention

FIG. 4 is a diagram schematically showing the data transmission / reception implementation of the present invention with the configuration of FIG. 2

5A shows a packet structure transmitted from a transmitting side to a receiving side

FIG. 5B shows a structure of a packet transmitted from a transmitting side to a receiving side based on a request of a receiving side

6 is a flowchart showing a data transmitting / receiving method according to the present invention.

7 is a flowchart showing another method of transmitting and receiving data according to the present invention.

The present invention relates to an apparatus and method for using an authenticated device (terminal, device or apparatus, etc.), a user, or authenticated data.

In the conventional general data transmission / reception, the transmitting side transmits data in a state in which the receiving side has not confirmed, and in the case of the confirmed receiving side, the use of all data transmitted by the transmitting side (Storing, Reading, Outputing, Editing, ) Could not be controlled.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus capable of applying digital rights management (DRM) (encryption) to data to be transmitted and data to be transmitted, Lt; / RTI >

The present invention applies each DRM to the transmitting side and / or the data to be transmitted when UGC (User Generated Contents) data is transmitted from a user terminal device (transmitting side) to another user terminal device (receiving side) And the security of the system can be implemented.

Before transmitting actual data from a sender to a receiver, general information indicating a sender, for example, file information of a terminal telephone number and / or data (attribute information ), And the like, and confirms whether or not the receiver side holds the message to implement security.

In the present invention, when the receiving side receives the packet on the transmitting side, unique information to be mapped to general information on the transmitting side, for example, when there is no unique number of the transmitting side terminal, the request / DRM and security implementation smoothly.

According to an aspect of the present invention, there is provided a data transmitting and receiving apparatus comprising: a memory unit storing first information indicating a transmitting side and second information mapped to the first information; A transmission unit for transmitting at least one transmission side information stored in the memory unit; And a controller for controlling transmission of data and transmission of the first and second information.

According to another aspect of the present invention, And a controller for mapping the transmitted transmission side general information and the stored transmission side unique information and controlling the request of the transmission side unique information when the transmission side general information is not matched.

According to another aspect of the present invention, there is provided a data transmission / reception method including: The file being given unique information; The information about the apparatus on the transmitting side and the unique information of the transmitting file are transmitted to the receiving side; Determining whether the transmitted information exists on a receiving side; As a result of the determination, when the information on the transmitting side exists on the receiving side, data transmission / use is performed. If the information on the transmitting side is not present, the receiving side requests unique information from the transmitting side. The transmitting side determining whether to transmit unique information to the receiving side request; And transmitting unique information and data transmission on the transmission side based on the determination result.

Hereinafter, a method of transmitting / receiving data according to the present invention will be described in detail with reference to the drawings.

First, the outline of the present invention and the operation procedure will be described.

In using the data to be transmitted and received, only the device or user having information (general information / unique information) on the other side, for example, the transmitting side or the receiving side, can use the transmitted data, or the information on the transmitting / Only the user / device having the information related to each transmitted data, for example, the attribute information of the file, etc., can use the transmitted data to implement security.

At present, general data transmission / reception is bidirectional, so that the transmission side / reception side can be changed to the reception side / transmission side according to the data transmission direction.

The following is a general description of the implementation of the present invention.

1. Each device and / or user-specific ID is assigned.

2. Attribute information (ID) of a file that can identify each data is given.

3. Transmit the attribute information of the file related to the transmitting side information and / or the data to be transmitted, and inquires whether the information exists on the receiving side. On the other hand, data may be transmitted to the receiving side together with the transmitting side information.

3. When the receiver has the file ID of the sender-side unique information and / or data for the above query, the sender transmits data to the receiver, and the receiver uses the received data (Storing, Reading, editing, copying, etc.).

In this case, in using the received data, it may be possible to use 1) the receiving side has the ID of the transmitting side, 2) the receiving side has both the transmitting side ID and the file ID of the received data It may be available when you have it.

4. On the other hand, if the receiving side does not have the transmitting-side unique information and / or the file ID of the data to be transmitted with respect to the above query, the following operation can be performed.

1) request the file ID of the sender-specific information and / or the data to be transmitted together with the transfer of the receiver-side ID; 2) request the file ID of the sender-specific information and / , 3) send a real data transmission request while transmitting the receiving side ID, or 4) transmit only the receiving side ID (in this case, the transmitting side determines the transmitting side unique information and / or the file ID of the data to be transmitted It is also possible to transmit actual data or to transmit real data immediately.

If the receiving side receives the unique information of the transmitting side, the received unique information of the transmitting side is stored in the memory so that data can be received without requesting the transmitting side unique information during the next data transmission / reception.

Meanwhile, the term "DRM" or "UGC" referred to in the present invention selects general term that is widely used at present, but in certain cases, there is also a term arbitrarily selected by the applicant, It is to be understood that the present invention should be grasped as a meaning of a term that is not a name of a simple term.

In connection with the present invention, the term "DRM" refers to technologies and services that prevent unauthorized use of digital contents and protect the rights and interests of providers. And technologies to prevent piracy and tampering.

Also, "UGC" or the like means content / data produced by a user in a user device, e.g., a PC or a portable terminal.

FIG. 1 is a schematic block diagram in which data transmission / reception is performed according to the present invention.

As shown in the figure, the transmitting side 100 and the receiving side 110 are capable of transmitting / receiving data via wire / wireless.

The transmitting side includes a personal computer (PC) 101 and a portable terminal 102, for example, a PDA, a WIBRO, a DMB, a Handphone, and the like.

Also, the receiving side includes a personal computer (PC) 111 and a portable terminal 112 such as a PDA, a WIBRO, a DMB, and a Handphone.

On the other hand, it is obvious that the transmitting side / the receiving side are mutually changed to the receiving side / the transmitting side in accordance with the data transmission direction, which is set based on any one of the directions, It is also clear that it can be interpreted interchangeably.

2 is a block diagram illustrating overall configurations in which data transmission / reception of the present invention is implemented.

As shown in the figure, the transmitting side 200, the receiving side 250, the repeaters 220 and 240 connecting the transmitting and receiving sides, and the UGC management server 230 are included.

A transceiver 213 including an RF (Radio Frequency) 213a is connected to a user device such as a PC, a portable terminal (PDA, WIBRO, DMB, Handphone) of the transmitting side 200, A microphone 212 as a kind of input means, a Codec 215 as a conversion means, a speaker 216 as an output means, an LCD 217 as another output means, general information / unique information of the transmission side apparatus, A memory 219 for storing information of a receiving terminal, a file / contents and the like, a memory controller 218 for controlling the memory, and a controller 214 for controlling the above configurations.

The user equipment of the receiving side 250 also includes substantially the same configurations as those of the transmitting side.

For example, a transmission / reception unit 253 including an RF (Radio Frequency) 253a, a camera 251 as a photographing unit, a type of input unit A microphone 252, a Codec 255 as a conversion means, a speaker 256 as an output means, an LCD 257 as another output means, general information / unique information of a transmission side apparatus, information of a reception terminal, A memory controller 258 for controlling the memory, and a controller 254 for controlling the configurations.

In addition, the transmitting side and the receiving side perform data transmission / reception using the repeaters 220 and 240 and the UGC management server 230 and the like.

Fig. 3 shows another embodiment of the configuration of the transmitting / receiving side of the present invention.

As shown in the figure, the personal digital assistant 300 as a transmitting-side device is any one of a PDA (Personal Digital Assistant), a Pocket PC, a Hand held PC, a Web pad, And is an information processing device that can be used by a user on the move, and is generally provided with a multimedia playback function including video, audio, and text.

The personal portable terminal 300 or the user PC may store or install programs having various functions for processing various commands input thereto.

The personal portable terminal 300 includes a control unit 301, a user input unit 302, a storage unit 303, a transmission / reception unit 304, a voice processing unit 305, a voice output unit 306, a screen processing unit 307, A screen output unit 308, and the like.

The user input unit 302 includes a button unit including a plurality of buttons for selecting and operating various functions to be performed by a user through the operation of a key button, a predetermined unit corresponding to a voice or a predetermined contact signal input by the user, And a voice recognition unit or a touch panel unit for outputting command data.

The controller 301 generally controls each component of the personal portable terminal to perform an operation corresponding to the command input through the user input unit 302. [

The storage unit 303 may include a memory, which is an information storage device required for high-speed data processing, and an HDD for storing a large amount of information. The storage unit 303 may include an operating program or other application programs necessary for the operation of the personal portable terminal, You can store the digital content you need.

The transceiver 304 performs data transmission / reception with an external device according to an interface with an external device and a communication protocol under the control of the controller 301 of the portable device.

The audio signal processing unit 305 processes the audio data to be suitable for the audio output apparatus, and outputs the processed audio signal to the audio output unit 306.

The audio output unit 306 includes a speaker and outputs a sound or sound corresponding to the audio signal output from the audio signal processing unit 305.

The video signal processing unit 307 processes video data such as video image data and a user interface screen so as to be suitable for a video output apparatus, and outputs the video data to the screen output unit 308.

The screen output unit 308 includes an LCD display device and the like. The user interface screen related to the selection of the image signal processed by the audio signal processing unit 305 and the operation of the portable electronic device is displayed on the control unit 301 And to be displayed on the LCD display device according to the control.

FIG. 4 is a flowchart illustrating a data transmission / reception method according to an embodiment of the present invention. Referring to FIG.

As shown in the figure, data transmission / reception is implemented through the transmitting side 400, the receiving side 410 and the relaying means 420.

First, a data transmission is requested from a transmitting side to a receiving side. (S 401).

On the other hand, the receiving side transmits an ACK (S402), and the transmitting side transmits general information of the transmitting side, for example, the telephone number of the terminal and the file specific information (attribute information) (S403).

On the receiving side, the transmitting side general information and / or the file attribute information are compared with already stored transmitting side unique information through Mapping or the like, and if receiving a real data transmission, Request / receive a transmission.

On the other hand, when it is determined that the new transmission side is the comparison result, the receiving side requests unique information of the transmitting side, for example, unique information of the terminal (Identity key). (S 404).

The unique information of the terminal may be represented by, for example, a universal unique identifier (UUID).

The transmitting side which has requested the unique information transmits the unique information (Identity Key) of the transmitting side to the receiving side (S405), and the receiving side stores the transmitted unique information in the storing unit.

And requests the transmitting side to transmit the real data. (S406). The transmitting side transmits data to the receiving side. (S407).

On the receiving side, if the data is normally received, the receiving ACK is transmitted. (S408).

As one example, in the present invention, general information of a transmitting side is first transmitted to a packet transmitted from a transmitting side to a receiving side, and at the receiving side, the transmitted general information and the unique information of the transmitting side ) Is MAPPING and confirms whether it matches with the true sender side.

If it is determined through the above checking process that the received information is not a real receiver, that is, if the receiver has no unique information on the transmitter side, the transmitter may send an authentication failure message, The actual data will be transmitted through the process of requesting information.

On the other hand, as another embodiment, unique information of a transmitting side is transmitted to a packet transmitted from a transmitting side to a receiving side, and on the receiving side, the transmitted unique information and unique information of the transmitting side (Identity key composed of UUID) You might also be able to see if it matches.

If it is determined that the received information is not a true receiver, that is, if the receiver does not have unique information of the transmitter, the receiver requests real information Transmission will be received.

On the other hand, as another embodiment, the receiving side may determine whether to receive the data transmitted by the transmitting side. That is, the receiving side may refuse to receive data by the transmitting side / data by using the general information, unique information, and file attribute information transmitted from the transmitting side.

5A shows a packet structure transmitted from a transmitting side to a receiving side.

In general, before transmission of the actual data, on the transmission side, the transmission side general information 501, for example, the telephone number of the transmission side, and / or attribute information 502, which is file information of data to be transmitted, . The encrypted data 503 may also be transmitted.

In addition, the header includes Tag information (for example, general information for searching for the basic structure for data communication and the identity key of the transmitting side for the individual DRM (for example, the ID of the terminal, the ID of the terminal, Telephone number), and file attribute information indicating data can be transmitted together.

Therefore, since the encrypted data is encrypted (DRM) with the attribute information of the sender's Identity Key and / or the file, if the unique information (the sender's Identity Key and / or the attribute information of the file) / Not received / decrypted.

FIG. 5B shows a case where the transmitting side information is transmitted to the receiving side according to the FIG. 5A and the information on the transmitting side and the unique information on the receiving side are mapped as a result of mapping, And is transmitted from the transmitting side to the receiving side.

Attribute information (not shown), which is the file information of the data to be transmitted, and the unique individual ID 507 of the terminal, etc., are stored in the header 505 in the transmission side general information 506, for example, . The encrypted data 508 may also be transmitted.

In addition, the header includes Tag information (for example, the ID of the terminal) for searching the basic structure for data communication and the Identity Key of the transmitting side for the individual DRM (for example, the ID of the terminal, Telephone number), and file attribute information indicating data can be transmitted together.

In particular, a unique number (Identity Key) of the transmitting terminal is transmitted based on the request of the receiving side.

In the present invention as described above, the following authentication is required for the receiving side in order to prevent the transmission from being undesired by the transmitting side.

The following procedure is used for mutual authentication between the sender and the receiver.

      As shown in FIG. 5A, attribute information summarizing the general information of the transmitting side and the header information of the decoded file is transmitted to the receiving side before the substantial data transmission.

The receiving side checks whether the data is authorized to use the data based on the header information including the transmitting side general information and / or the attribute information of the decoded file. When the receiving side does not have the authority, .

The sender receives the Identity key request message on the receiving side and performs a corresponding action (Accept: Pass the Identity Key, Decline: Do not pass the Identity Key).

On the other hand, if authentication is once made between the transmitting side and the receiving side, the transmitting side transmits the header information of the decryption file and the transmitting side information before the data transmission. If the receiving side has the identity key of the decoded file, The request is transmitted to the transmitting side, and the transmitting side confirms the authentication and performs data transmission.

The Identity Key in the present invention is generated by a unique ID between terminals so that the identity of the transmitter / receiver can be represented, such as the UUID or the ESN ID of the terminal.

6 is a flowchart illustrating a data transmission / reception method according to the present invention.

Based on the transmission side unique information (Identity Key), contents / data are produced and encoded. (S601).

And transmits transmission side general information and / or file attribute information from the transmitting side to the receiving side. (S602).

And uses the transmission side general information or the like to determine whether the unique information (Identity Key) on the transmission side exists on the reception side. (S603).

As a result of the determination, if there is unique information on the transmitting side, the receiving side requests data transmission to the transmitting side. (S604), while the requesting step may be omitted.

The transmitting side transmits the data to the receiving side (S605), and the transmitted data is stored. (S606).

The received data is decoded and used. (S607, S608).

On the other hand, when there is no unique information of the transmitting side on the receiving side, the receiving side requests unique information to the transmitting side. (S609).

In response, the transmitting side determines whether the unique information requested to be transmitted is transmitted (S610). If the transmission request is rejected, the transmitting side transmits an authentication failure message to the receiving side. (S 617).

In response to a unique information request on the receiving side, when the transmitting side desires to transmit, it transmits unique information on the transmitting side. (S611). The subsequent steps are the same as S 605 - S 608.

That is, the transmitting side transmits data to the receiving side (S612), and the transmitted data is stored. (S613).

The received data is decoded and used. (S 614, S 615).

In addition, the received unique information of the transmitting side is stored in the memory unit of the receiving side and used for the next authentication. (S616)

The flow order of the present invention and other flow order of the present invention as described above are shown as an example, and the order of operations may be changed and operated. For example, step S616 may be performed after step S611.

7 is a flowchart illustrating another method of transmitting and receiving data according to the present invention.

Device / user is given unique information. (S701). For example, each device will be given a serial number, etc., which can be represented by a 128-bit UUID.

File information indicating the characteristics of data to be actually transmitted, that is, attribute information is given. (S702).

The provided information is included in the header and is transmitted from the transmitting side to the receiving side (S 703).

In the above, the attribute information of the file will be a more reliable authentication means by allowing the transmitting side to once again authenticate whether or not to use the transmitted data on the receiving side.

On the other hand, both of the two pieces of information may be used as the authentication information, and only one piece of information may be used.

It is determined whether the transmitted unique information exists on the receiving side. (S704).

As a result of the determination, when the unique information of the sender exists on the receiver side, the file is transmitted / used (S705). If the unique information of the sender does not exist on the receiver side, And requests unique information. (S706).

The transmitting side can determine whether to transmit the information of the transmitting side to the receiving side based on the information of the receiving side transmitted at the time of the transmitting request of the receiving side. (S707).

If it is determined that the request can not be accepted, the authentication failure message is transmitted to the receiver. (S708).

On the other hand, based on the determination result, the transmitting side provides unique information to the receiving side, and the receiving side stores the received unique information in the memory. (S709).

Data transmission and data use are performed. (S 710, S 711).

As described above, in the data transmitting and receiving apparatus and method according to the embodiment of the present invention, when data to be transmitted and received is used, only data transmitted by a device or user having information on the other side, for example, Or only the user / device having information related to each transmitted data, for example, attribute information of the file, etc., can use the transmitted data even if the information is on the transmitting / receiving side.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. , Alteration, substitution, addition, or the like.

In the data transmitting and receiving apparatus and method according to the present invention as described above, it is possible to reliably transmit and receive data applied with security for each device / user by applying an individual DRM.

In addition, it is possible to prevent the transmission and use of data to an undesired receiving side by mistake on the transmitting side.

Also, it is possible to prevent reception of unwanted spammy data on the receiving side.

Claims (23)

A method of transmitting and receiving data between a transmitting apparatus and a receiving apparatus, Providing first unique information including identification information for the transmitting apparatus; Providing second unique information including identification information on a file to be transmitted by the transmitting apparatus; Transmitting the given first unique information and second unique information to the receiving apparatus; And Determining whether the receiving apparatus exists with the right information for browsing the file corresponding to at least one of the transmitted first unique information and the second unique information / RTI > The method according to claim 1, If the right information exists in the receiving apparatus in the determining step, Further comprising the step of the receiving device requesting transmission of data to the transmitting device / RTI > 3. The method of claim 2, Further comprising the step of the transmitting device transmitting the data according to the data request / RTI > The method of claim 3, Further comprising using the transmitted data for use by the receiving device / RTI > The method according to claim 1, If the right information does not exist in the receiving apparatus, Further comprising the step of the receiving device requesting the transmitting device to transmit the right information / RTI > 6. The method of claim 5, Further comprising the step of the transmitting device determining whether the right information is transmitted according to the request / RTI > The method according to claim 6, Wherein the determining whether the right information is transmitted includes determining whether the receiving apparatus is authorized to browse the file based on header information including attribute information of the file / RTI > 8. The method of claim 7, If the receiving apparatus does not have the right to view the file according to the determination as to whether or not the right information is transmitted, Further comprising the step of transmitting an authentication failure message indicating that the transmitting apparatus is not authorized to view the file in the receiving apparatus / RTI > 8. The method of claim 7, If the receiving apparatus is authorized to view the file in accordance with the determination whether the right information is transmitted, Further comprising the step of the transmitting device transmitting the right information to the receiving device / RTI > 10. The method of claim 9, Further comprising the step of the receiving apparatus storing the transmitted right information / RTI > 11. The method of claim 10, Further comprising the step of the receiving apparatus requesting the transmitting apparatus to transmit the data using the right information / RTI > 12. The method of claim 11, Further comprising the step of the transmitting device transmitting the data to the receiving device at the request of the receiving device / RTI > 13. The method of claim 12, Further comprising using the transmitted data for use by the receiving device / RTI > A data transmitting and receiving apparatus comprising a transmitting apparatus for transmitting data and a receiving apparatus for receiving the data, The transmitting apparatus To the receiving apparatus, second unique information including first unique information including identification information for the transmitting apparatus and identification information for a file to be transmitted by the transmitting apparatus, The receiving device It is determined whether there is the right information for viewing the file corresponding to at least one of the transmitted first unique information and the second unique information Data transmitting / receiving device. 15. The method of claim 14, The transmitting apparatus A first controller for generating the first unique information and the second unique information; A first storage unit for storing the generated first unique information and second unique information; And And a first transmission / reception unit for transmitting the first unique information and the second unique information Data transmitting / receiving device. 16. The method of claim 15, The receiving device A second storage unit for storing the authorization information; A second transceiver for receiving the first unique information and the second unique information; And And a second control unit for determining whether the right information corresponding to the received first unique information and second unique information is stored in the second storage unit Data transmitting / receiving device. 17. The method of claim 16, The second control unit And if the right information is stored in the second storage unit, requests data transmission to the transmitting apparatus Data transmitting / receiving device. 17. The method of claim 16, The second control unit If the right information is not stored in the second storage unit, the transmitting unit requests the transmission of the right information Data transmitting / receiving device. 19. The method of claim 18, The first control unit Based on the header information including the attribute information of the file, whether the receiving apparatus has the right to view the file in response to the request for transmitting the right information Data transmitting / receiving device. 20. The method of claim 19, The first control unit If the receiving device determines that the file is not authorized to view the file, An authentication failure message indicating that the user is not authorized to view the file is transmitted to the receiving device Data transmitting / receiving device. 20. The method of claim 19, The first control unit If the receiving device judges that the file is authorized to browse the file, And to transmit the right information for browsing the file to the receiving apparatus Data transmitting / receiving device. 22. The method of claim 21, The second control unit And requests data transmission to the transmitting apparatus based on the transmitted right information Data transmitting / receiving device. The method according to claim 17 or claim 22, The first control unit And transmits the data to the receiving apparatus according to the data transmission request of the second control unit Data transmitting / receiving device.

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