KR101193926B1 - System and method for communicating a document with wireless tag - Google Patents

Abstract

The present invention relates to a system and method related to document recognition using a radio tag, wherein the contents of a document that need to be shared only with a specific group or people while maintaining confidentiality are converted into electronic data and transmitted only by a predetermined recipient. To transmit the transmission data by a predetermined method to receive the contents of the document and to output the contents of the document only to a predetermined recipient by the predetermined method so that the document can be viewed only by a specific person, especially in the case of public documents. The present invention relates to a system and a method for document recognition using a radio tag to maintain confidentiality of a document.

Description

System and method for communicating a document with wireless tag

1 is a view schematically showing a document recognition system and method using a radio tag according to the present invention.

Figure 2 is a block diagram showing the internal configuration of a preferred embodiment of a document recognition system using a wireless tag according to the present invention.

3 is a first flowchart illustrating a process according to a preferred embodiment of the document recognition method using a radio tag according to the present invention.

4 is a second flowchart illustrating a process of another preferred embodiment by a document recognition method using a radio tag according to the present invention.

The present invention relates to a document recognition system and method using a radio tag, and more particularly, to maintain the confidentiality of the document, such that the content of the document can be disclosed only to the creator of the content of the document, the reader to view The present invention relates to a document recognition system and method using a radio tag that can deliver a document using a tag.

Conventionally, as a general information transmission medium, it is common to use a paper such as a paper, whether a document is used for personal use or a document used for public purpose. In terms of recognizing the content of a document when using a page such as paper, it is generally recognized that the content of the document can be clearly recognized without inferior efficiency of recognition compared to other media.

However, if the medium is paper or the like, if the amount of documents to be stored accumulates, the problem of space for storage may become serious, and if it is necessary to maintain confidentiality, it is not only difficult to maintain confidentiality, but also to maintain confidentiality. Separate space device is required. In addition, the use of paper should also be avoided in terms of resource conservation.

In particular, when confidentiality needs to be maintained, documents using paper or the like can be read by anyone inherently, so special handling is required, and if there is a mistake in storage, it is easy to be exposed to an unspecified number. Since another confidential space is required for archiving, it is difficult to ensure confidentiality in the case of documents using the ground.

In addition, in the case of using a paper medium such as paper printed in a public document to share information, unintentional receipt of others may occur frequently, and in this case, information that should be shared only with a specific person may be leaked. Problems may arise. Especially if the leaked documents need to be kept confidential, this can be particularly damaging.

The technical problem to be achieved by the present invention is to prevent the waste of resources such as paper, which is a problem with the prior art as described above, and to convert information into data and data in order to share information that should be guaranteed confidentiality. The present invention provides a system and a method for preventing the leakage of information when a loss or theft is prevented by leaking other than a specific person by a predetermined method.

Another technical problem to be solved by the present invention is a computer-readable recording recording a program for executing a method on a computer to prevent leakage of the information when a loss or theft is prevented by leaking other than a specific person by a predetermined method. To provide the medium.

According to an aspect of the present invention, there is provided a document recognition system using a wireless tag, including: a document input unit which receives data of an electronic document to transmit a wireless tag; A first key input unit configured to receive a predetermined first key of data of the electronic document; A transmission data generation unit generating transmission data using the data of the received electronic document and the received first key; And a transmitter for transmitting the transmission data in a wireless tag.

In addition, the document recognition system includes a receiving unit for receiving the transmission data from the radio tag; A second key input unit receiving a second key from a user; And an output unit configured to output data of the electronic document when the first key set in the transmission data and the second key input from the second key input unit match.

Preferably, the transmission data generation unit generates data of the received electronic document as encrypted transmission data using the received first key, and the document recognition system receives the encrypted transmission data from the radio tag. Receiving unit; A second key input unit receiving a second key from a user; And an output unit for decrypting and outputting the encrypted transmission data by the input second key.

According to another aspect of the present invention, there is provided a document recognition method using a wireless tag, including: a document input step of receiving data of an electronic document for transmission by a wireless tag; A first key input step of receiving a predetermined first key of data of the electronic document; A transmission data generation step of generating transmission data using the data of the received electronic document and the received first key; And a transmission step of transmitting the transmission data in a wireless tag.

The document recognition method may further include a receiving step of receiving the transmission data from the radio tag; A second key input step of receiving a second key from a user; And outputting data of the electronic document when the first key set in the transmission data and the second key input from the second key input unit match.

Preferably, the transmission data generation step, the receiving step of generating the data of the received electronic document as encrypted transmission data using the received first key, and receiving the encrypted transmission data from the radio tag; A second key input step of receiving a second key from a user; And an output step of decrypting and outputting the encrypted transmission data by using the received second key.

By doing so, the contents of the document to be shared are converted into electronic data, recorded and stored in the radio tag by a predetermined method, and the confidentiality of the document is maintained by allowing the output or decryption to only those who should be shared again by the predetermined method. This can prevent the leakage of information even in case of theft or loss.

Hereinafter, exemplary embodiments of a document recognition system and method using a radio tag according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing a document recognition system and method using a radio tag according to the present invention.

Briefly considering the present invention with reference to FIG. 1, the document 100 that needs to be shared only by a specific person is first converted into data through the electronic document input terminal 110.

In general, a personal personal computer is mainly used as the electronic document input terminal 110, and may also be used by a personal digital assistant (PDA) or the like, and may be a device capable of data formation.

The content of the documented data through the electronic document input terminal 110 is transmitted to the radio tag 130 through the radio tag transmitter 120.

The information recorded in the radio tag 130 by the radio tag transmitter 120 is received through the radio tag receiver 140 again, and the data received by the radio tag receiver 140 The content of the document is displayed to the user through the document output terminal 150. With reference to Figure 2 with respect to the internal structure for realizing the present invention with respect to the expression system that is a document using a radio tag according to the present invention described above in more detail.

Figure 2 is a block diagram showing the internal configuration of a preferred embodiment of a document recognition system using a wireless tag according to the present invention.

Referring to FIG. 2, a document recognition system using a wireless tag according to the present invention includes a document input unit 200, a first key input unit 210, a transmission data generator 220, a transmitter 230, a receiver 240, An output unit 250, a second key input unit 260, and a radio (RF) tag 270 are provided.

The document input unit 200 data-informs information to be shared as corresponding to the electronic document input terminal 110 of FIG. That is, the document input unit 200 receives data of the electronic document to transmit the wireless tag 270. In this way, the information, which is usually expressed in letterpress on the ground, becomes the data that can be transmitted and received by the electronic device leaving the ground.

The first key input unit 210 receives a parameter required for converting the data of the electronic document received through the document input unit 200 to the wireless tag 270 as it is, rather than transmitting the data to the wireless tag 270 as it is, to maintain information and confidentiality. .

The first key may also be used as an authentication number and may be a specific value indicating a means for encrypting data for encryption. Such authentication numbers, encryption means, and the like will be described later.

As described above, the transmission data generation unit 220 generates transmission data by using the data of the electronic document input through the document input unit 200 and the first key input through the first key input unit 210. . The transmission data generated by the transmission data generation unit 220 is data transmitted to the radio tag 270 to be described later. The transmission data generated by the transmission data generation unit 220 may be converted into transmission data along with the data of the electronic document with the authentication number, which is the standard of authentication, by the first key received, and the first key is encrypted as described above. The transmission data may be generated by the encrypted data as a means for. Regarding the reception of the data of the electronic document, it will be described later.

The transmitter 230 transmits the transmission data generated by the transmission data generator 220 to the radio tag 270 as described above. The process of transmitting data by the transmitter 230 in the wireless tag is not intended to be protected through the present invention, and thus a detailed description thereof will be omitted since it corresponds to a known technique corresponding to a conventional technique.

The transmission data is recorded in the radio tag 270 through the transmitter 230. The transmission data recorded in the radio tag 270 is received by the receiving unit 240 of the present invention. The radio tag 270 preferably uses an RF tag.

RFID (Radio Frequency IDentification) technology is a type of sensor network used to recognize multiple physical objects in a wireless environment.It attaches electronic tags to objects and automatically manages the information of objects and surrounding environment information using radio waves. As a system, the RF tag consists of a semiconductor-made transponder chip and an antenna, and is classified into passive and active, and classified into an inductive coupling method and a backscatter coupling method. The passive type operates by receiving energy from the radio signal of the reader without an internal power supply, and the active type uses a built-in RF tag battery to operate by itself.

The process of recognizing data from the wireless tag 270 by the receiver 240 causes the information recorded in the RF tag to cause the RF reader to form power in the RF tag using a magnetic field or a radio wave, and then uses the formed power again. In order to receive and recognize radio waves from a tag, RF tag data is received. Detailed description thereof will be omitted since it falls outside the protection scope of the present invention and corresponds to well-known technology.

The second key input unit 260 receives a second key from the user, which is required in the process of outputting or decoding the received transmission data.

First, a second key used in a process for outputting received transmission data will be described.

The transmission data received by the receiver 240 is data generated by using the data of the first key and the electronic document in transmitting the data. In the case of transmission data for outputting the received transmission data, the transmission data received by the reception unit 240 is received together with the data of the first key and the electronic document.

In order to maintain confidentiality in sharing the document, the first key in the transmission process serves as an authentication number.

That is, the received transmission data is used to disclose the received transmission data to the user only when the second key input through the second key input unit 260 coincides with the received first key in receiving the transmission data.

If only the person who maintains the confidentiality of sharing about the contents of the document assumes an authentication number that is known, and if the authentication number is the same on both the sending side and the receiving side, the premise is that the shared confidentiality is guaranteed and made available to the receiving side. do. As described above, the first key input during the transmission process and the second key input during the reception process function as an authentication number for reading the document.

As described in the above process, the output unit 250 outputs the data of the electronic document only when the first key set in the transmission data and the second key input from the second key input unit coincide with each other. Documents can be transmitted or printed with confidentiality.

Next, the case where it is used as a means of encrypting transmission data is demonstrated.

The first key received during the transmission of the transmission data may be used to encrypt data of the electronic document for transmission. The data of the input electronic document may be encrypted by an encryption method corresponding to the received first key to generate transmission data.

The input first key becomes a parameter of the encryption function. The electronic document received by these parameters is encrypted to generate transmission data.

The generated encrypted transmission data is recorded in the wireless tag 270 and the recorded encrypted transmission data is received by the receiver 240. At this time, the output unit 250 receives the second key from the second key input unit 260 and decrypts and outputs the second key by receiving the encrypted transmission data.

The encryption and decryption methods related to the predetermined first key and the second key have a symmetric key method in which the first key and the second key are the same key, and the first key and the second key are related to the public key and the private key. Are roughly divided into asymmetric key schemes. Detailed description thereof is beyond the scope of the present invention, and thus detailed description thereof will be omitted.

If the second key in the reception process corresponds to the decryption key as described above with respect to the first key in the transmission process, the original document content is output as a content that can be identified by being decoded, but not in the key for decryption. If not applicable, the encryption of the creation process is decrypted differently so that the original document content is not recognized as a readable form, thereby ensuring the confidentiality of the document content. Since the shared group, which maintains confidentiality, recognizes the first key, the second key corresponding to the decryption key is used to receive and output the transmission data with respect to the first key in the process of generating the encrypted transmission data. The confidentiality of can be guaranteed. Even if the radio tag is lost or there is a loss of someone else, the confidentiality of the document contents is ensured by this method.

In addition, the transmitter 230 may delete the data stored in the radio tag 270 by transmitting the transmission data to the radio tag 270 and then transmitting the reset information for deleting the data stored in the radio tag 270. have.

When the confidentiality period of information sharing ends or data is required to be deleted, the information recorded in the radio tag can be destroyed by transmitting reset information to the radio tag.

Hereinafter, a document recognition method using a wireless tag will be described in detail with reference to FIGS. 3 and 4.

3 is a first flowchart illustrating a process related to a preferred embodiment of the document recognition method using a radio tag according to the present invention.

Referring to FIG. 3, in the document recognition method using the wireless tag according to the present invention, the document input unit 200 first receives data of an electronic document to transmit the wireless tag (S300).

In addition, the first key input unit 210 receives the first key used as the authentication number or the encryption means as described above (S310).

The transmission data generation unit 220 generates both the data of the electronic document received through the document input unit 200 and the first key input unit 210 and the first key to function as an authentication number as transmission data (S320). ).

The transmitter 230 transmits the transmission data generated by the transmission data generator 220 in a wireless tag (S330). The transmission data transmitted in the radio tag is received from the radio tag by the receiver 240 (S340).

 The second key input unit 260 receives a second key from the user (S350). It is determined whether the input second key coincides with the first key that has been transmitted in the transmission process (S360), and when it matches, the data of the received electronic document is output (S370).

Through the above process, the contents of the document can be output only when the second key received by using the wireless tag matches the first key, which is transmitted data in the transmission process, so that the contents of the document can be disclosed to a limited person. The confidentiality of the document can be maintained.

Another embodiment of transmitting the contents of the document using a radio tag while maintaining the confidentiality of the document will be described with reference to FIG. 4.

4 is a second flowchart illustrating a process of another preferred embodiment by a document recognition method using a radio tag according to the present invention.

Since the process from S400 to S450 according to the embodiment of FIG. 4 is the same as the part described with reference to FIG. 3, description thereof is omitted. However, in step S420, which is a step for generating transmission data, unlike step S320 described with reference to FIG. 3, the first key received from the first key input unit 210 receives data of the electronic document received through the document input unit 200. Create encrypted transmission data using

The encrypted transmission data decrypts and outputs the encrypted transmission data transmitted using the second key input in step S450 (S460). Since the transmission data encrypted using the first key in the transmission step is itself encrypted data, even if it is recognized by another reader, confidentiality can be maintained, and even if it is decrypted by another key if the key for decryption is not known. Since the original document content cannot be decrypted in a readable form, the confidentiality of the document can be maintained twice.

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. Computer-readable recording media include any type of recording device that stores data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CO-ROM, magnetic tape, and floppy. Disks, optical data storage, and the like, and also include those implemented in the form of carrier waves (eg, transmission over the Internet). The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the embodiment in which said invention is directed. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

According to the document recognition apparatus and method using a wireless tag according to the present invention, it effectively overcomes the problems of confidentiality, storage inefficiency, etc. that may occur in the case of sharing by paper such as paper printed and printed. Therefore, it is efficient in the storage of information contents, and can be prevented from leaking information even in case of loss or theft, so that it can be used more efficiently for sharing documents that should be kept confidential.

Claims (9)

A document input unit which receives data of an electronic document for transmission by a wireless tag; A first key input unit configured to receive a predetermined first key of data of the electronic document; A transmission data generation unit generating transmission data using the data of the received electronic document and the received first key; And And a transmission unit for transmitting the transmission data in a wireless tag. The method of claim 1, wherein the document recognition system, A receiver which receives the transmission data from the radio tag; A second key input unit receiving a second key from a user; And And an output unit for outputting data of the electronic document when the first key set in the transmission data and the second key input from the second key input unit match. Document recognition system used. The method of claim 1, The transmission data generating unit, Generating data of the received electronic document as encrypted transmission data using the received first key, The document recognition system, A receiving unit for receiving the encrypted transmission data from the radio tag; A second key input unit receiving a second key from a user; And And an output unit for decrypting and outputting the encrypted transmission data by the input second key. The transmitter according to any one of claims 1 to 3, wherein And transmitting the reset information for deleting the data stored in the radio tag after transmitting the transmission data in the radio tag to delete the data stored in the radio tag. A document input step of receiving data of an electronic document for transmission by a wireless tag; A first key input step of receiving a predetermined first key of data of the electronic document; A transmission data generation step of generating transmission data using the data of the received electronic document and the received first key; And And a transmitting step of transmitting the transmission data in a wireless tag. According to claim 5, The document recognition method, A receiving step of receiving the transmission data from the radio tag; A second key input step of receiving a second key from a user; And And outputting the data of the electronic document when the first key set in the transmission data and the second key input from the second key input step match. Document recognition method using. 6. The method of claim 5, The transmission data generation step, Generating data of the received electronic document as encrypted transmission data using the received first key, The document recognition method, Receiving the encrypted transmission data from the radio tag; A second key input step of receiving a second key from a user; And And outputting the encrypted transmission data by decrypting the encrypted transmission data by using the received second key. The method according to any one of claims 5 to 7, wherein the transmitting step, And transmitting the reset information for deleting the data stored in the radio tag after transmitting the transmission data in the radio tag to delete the data stored in the radio tag. A computer-readable recording medium having recorded thereon a program for executing the document recognition method according to any one of claims 5 to 7.

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