KR102432106B1 - Method for transmitting and receiving information using 2d barcode - Google Patents

Abstract

The present invention provides a method, apparatus and system for transmitting and receiving information using a QR code. The method includes receiving a first QR code including a second terminal identification information from a second terminal, sending the second terminal identification information to a server, and encryption information of the second terminal based on the second terminal identification information receives from the server, encrypts the encryption information of the first terminal using the encryption information of the second terminal to generate first terminal encryption information, and transmits the first terminal encryption information to the second terminal, Receive a second QR code generated through the first terminal encryption information and including information data from the second terminal, and decrypt the second QR code with the decryption information of the first terminal to obtain information data can

Description

How to transmit and receive information using a two-dimensional barcode for simple payment {METHOD FOR TRANSMITTING AND RECEIVING INFORMATION USING 2D BARCODE}

The present invention relates to a method, apparatus and system for transmitting and receiving information using a QR code, and more particularly, to a method for transmitting and receiving QR information in a device without a QR identification module, device and system, and information transmission/reception using a QR code in communication between terminals It relates to methods, apparatus and systems.

In general, various electronic devices are being made through the development of electronic communication technology, and various devices such as cell phones and smart phones are widely distributed. These smart phones are currently in widespread use, and many users use them to perform various tasks such as phone calls, e-mails, and wireless Internet.

In the case of a recent smart phone, there is a technical advantage that a user can directly download and install an application to configure the mobile phone like his or her personal PC. According to the evolution of the concept of mobile phones, various types of applications for smartphones are developed, sold, and used in the trading market.

A QR code is a two-dimensional barcode in a matrix format that displays information in a black and white grid pattern. QR codes are being used in various fields due to the advantage of being able to store data of a larger size than general barcodes that store numeric or character information in one direction. In general, the QR code can read stored data through image capturing through a camera provided in a smartphone, or a device with a separate reader. That is, any user who has the means to read a standard QR code can view the data in the QR code.

However, since the conventional QR code does not provide a method for encrypting or decrypting recorded data, there is a limit to storing security-sensitive data. For example, if the recipient's information is recorded using a QR code in the mail, anyone other than the person responsible for the delivery of the mail can scan the information through a QR code reader, etc. do.

On the other hand, in various stores such as restaurants, fast food restaurants, and coffee shops, certain parts of the store ordering system are automated based on the POS terminal in order to quickly process the countless orders. The most representative example is to provide an order identification device called a “vibration bell” to the ordering customer and deliver the ordered product to the customer through the order identification device at the same time as the production of the ordered product is completed. However, the time required for payment in these stores is not reduced at all, and there is a problem in that labor costs are required because a certain manpower must always wait for payment.

And, plastic card payment or mobile payment of offline affiliated stores (including public institutions) is currently made through CAT terminals, ATMs, or POS MS Readers, RFCs (IC cards), NFC, and Bluetooth. However, in the end, most of these methods use the agency's wired communication network (telephone, Internet) of each VAN company. This may cause problems in customer security management due to information leakage through each affiliate's device or each agency's management network. For example, there may be leakage of card information attached to a terminal, information leakage through the VAN agency computer management network, and the like. In addition, due to the payment of VAN fees to VAN companies, it is becoming difficult to cut fees for credit card companies' merchant fees. In addition, conventionally, accidents such as delay or omission of payment time due to the problem of poor contact, which is a disadvantage of the wired Internet, are not uncommon.

And in the past, it is true that current VAN dealers are facing a bloody situation due to problems such as rebate payment in the VAN market due to overheating competition in the CAT terminal and POS supply market.

Laid-Open Patent Publication No. 10-1669594, 2016.10.20

The problem to be solved by the present invention is to provide a method for transmitting and receiving QR information that can be used in an existing POS system that does not have a QR identification module or has limited use of a camera.

In addition, the present invention is to provide a QR information transmission and reception method that can be used in a field requiring data processing using a QR code between terminals without the need for a server.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The information transmission and reception method using a QR code according to an aspect of the present invention for solving the above-described problems comprises the steps of receiving a first QR code including a second terminal identification information from a second terminal, the second terminal identification information Transmitting to a server, receiving the encryption information of the second terminal based on the second terminal identification information from the server, encrypting the encryption information of the first terminal by using the encryption information of the second terminal Generating terminal encryption information, transmitting the first terminal encryption information to the second terminal, a second QR code generated through the first terminal encryption information and including information data from the second terminal Receiving, and decoding the second QR code with the decryption information of the first terminal, it may include the step of obtaining information data.

In addition, the information transmission and reception method using the QR code in the present invention comprises the steps of encrypting the transmission data through the encryption information of the second terminal and transmitting it to the server, and transmitting from the server to the first terminal and the second terminal It may further include the step of receiving determination information on whether the information data is the same.

In addition, the method of transmitting and receiving information using a QR code in the present invention includes the steps of confirming that the information data is correctly received when the determination information on whether the same is the same, and the determination information on whether the same is the same If not indicated, the method may further include confirming that the information data is not correctly received.

In addition, in the method of transmitting and receiving information using a QR code in the present invention, when the information data is not correctly received, the first QR code may be received again from the second terminal.

In addition, the information transmission and reception method using a QR code according to another aspect of the present invention comprises the steps of transmitting a first QR code including the second terminal identification information, and encrypting information of the first terminal based on the first QR code. Receiving the first terminal encryption information generated by encryption through the encryption information of the second terminal, decrypting the first terminal encryption information through the decryption information of the second terminal, the first terminal identification information and the first terminal obtaining encrypted information, generating encrypted information data by encrypting information data through the encryption information of the first terminal, generating a second QR code using the encrypted information data, the second Transmitting the QR code to the first terminal, and encrypting the information data through the encryption information of the second terminal may include the step of transmitting to the server.

In addition, the information transmission and reception method using the QR code in the present invention may further include the step of receiving, from the server, determination information on whether the information data transmitted from the first terminal and the second terminal are the same.

In addition, the method of transmitting and receiving information using a QR code in the present invention includes the steps of confirming that the information data is correctly received when the determination information on whether the same is the same, and the determination information on whether the same is the same If not indicated, the method may further include confirming that the information data is not correctly received.

In addition, the information transmission/reception method using the QR code in the present invention may transmit the first QR code back to the first terminal when the information data is not correctly received.

In addition, the information transmission and reception method using the QR code according to another aspect of the present invention comprises the steps of receiving a first QR code including the second terminal identification information from the second terminal, based on the second terminal identification information, the first generating a second QR code including terminal identification information, transmitting the second QR code to the second terminal, and generating a third QR code including information data based on the first terminal identification information Receiving from the second terminal, and using the third QR code, may include the step of obtaining information data.

In addition, the method for transmitting and receiving information using a QR code according to another aspect of the present invention comprises the steps of transmitting a first QR code including second terminal identification information, and generating a second QR code generated based on the first QR code. Receiving from a first terminal, obtaining first terminal identification information based on the second QR code, generating a third QR code including information data based on the first terminal identification information, and the It may include transmitting a third QR code to the first terminal.

Other specific details of the invention are included in the detailed description and drawings.

The information transmission/reception method, apparatus and system using QR code according to the present invention replaces the QR code generation and transmission process of the receiving terminal in the process of transmitting and receiving information of the receiving terminal by using an intermediate server, so that there is no QR identification module or the use of a camera Since it can be used in a limited existing POS system (eg, a system through a general desktop PC or a terminal with a display device already in use), there is an advantage that it can greatly secure expandability.

In addition, the information transmission/reception method, apparatus and system using a QR code according to the present invention is used in fields that require data processing using a QR code between terminals without the need for a server, and can be applied in fields that do not require security by removing encryption. As a simple two-way data transmission/reception method, security is used for access authentication or login, etc.

In addition, the method, apparatus and system for transmitting and receiving information using a QR code according to the present invention enables safe information transmission because information data or payment information is cross-checked with the terminal of the affiliated store even if the user's smartphone is hacked. do.

In addition, the information transmission/reception method, apparatus and system using a QR code according to the present invention enhances security while maintaining simple use and quick use, which are advantages of the existing QR code payment.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a diagram illustrating an information transmission/reception system using a QR code including a transmission terminal without a QR identification module according to an embodiment of the present invention.
2 is a diagram illustrating components of a receiving terminal, a server, and a transmitting terminal included in an information transmission/reception system using a QR code including a transmitting terminal without a QR identification module as an embodiment of the present invention.
3 is a diagram illustrating the operation of a receiving terminal of an information transmission/reception system using a QR code including a transmitting terminal without a QR identification module as an embodiment of the present invention.
4 is a diagram illustrating the operation of a transmitting terminal of an information transmission/reception system using a QR code including a transmitting terminal without a QR identification module as an embodiment of the present invention.
5 is a diagram illustrating an information transmission/reception system using a QR code in communication between terminals according to an embodiment of the present invention.
6 is a diagram illustrating components of a receiving terminal, a server, and a transmitting terminal included in an information transmission/reception system using a QR code in communication between terminals as an embodiment of the present invention.
7 is a diagram illustrating the operation of a receiving terminal of an information transmission/reception system using a QR code in communication between terminals as an embodiment of the present invention.
8 is a diagram illustrating the operation of a transmitting terminal of an information transmission/reception system using a QR code in communication between terminals as an embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully inform those skilled in the art of the scope of the present invention, and the present invention is only defined by the scope of the claims.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly specifically defined.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating an information transmission/reception system using a QR code including a transmission terminal without a QR identification module, according to an embodiment of the present invention.

Referring to Figure 1, an information transmission and reception system 100 using a QR code including a transmission terminal without a QR identification module according to an embodiment of the present invention (hereinafter referred to as 'information transmission and reception system including a device without a QR identification module') ) may be configured to include a receiving terminal 110, a server 120, and a transmitting terminal 130 without a QR identification module.

The information transmission and reception system 100 including a device without a QR identification module is configured to scan a QR code so that the reception terminal 110 acquires information data transmitted from the transmission terminal 130 without a QR identification module. An information transmission and reception system including a device without a QR identification module can transmit not only information data, but also encryption information and decryption information used to encrypt information data in the information transmission and reception process through a QR code.

The reception terminal 110 is a terminal for receiving information data from the information transmission and reception system 100 including a device without a QR identification module. On the other hand, the receiving terminal 110 may be configured to also serve as a role of transmitting the received information data or other information data before or after receiving the information data. The receiving terminal 110 may be any terminal including a communication function, such as a smartphone, tablet PC, notebook, etc., and may consist of a dedicated terminal used for the information transmission and reception system 100 including a device without a QR identification module have.

The server 120 is responsible for controlling the process of transmitting and receiving information data in the information transmission and reception system 100 including a device without a QR identification module. The server 120 may perform all the controls required in the information transmission/reception system 100 including a device without a QR identification module, such as communication connection, information data transmission/reception, information data transmission/reception or not. The server 120 may be any device capable of controlling communication, such as a mobile communication repeater, an Internet management device, etc., and is a dedicated device or server used for the information transmission/reception system 100 including a device without a QR identification module. may be configured.

The transmission terminal 130 without a QR identification module is a terminal for transmitting information data in the information transmission and reception system 100 including a device without a QR identification module. On the other hand, the transmission terminal 130 without a QR identification module may be configured to serve as a role of receiving information data or other information data to be transmitted before or before transmitting information data. The transmitting terminal 130 without a QR identification module may be any terminal including a communication function such as a smartphone, a tablet PC, a notebook computer, etc., and is only used for the information transmission and reception system 100 including a device without a QR identification module It may also be configured as a terminal.

Hereinafter, a process in which information data is transmitted and received in the information transmission/reception system 100 including a device without a QR identification module will be described.

The receiving terminal 110 may receive the first QR code from the transmitting terminal 130 without a QR identification module for receiving information data (S110). Here, the first QR code may include transmitting terminal identification information. The transmitting terminal identification information indicates information indicating unique information of the transmitting terminal. The receiving terminal 110 may receive the first QR code through a built-in camera or a QR code recognition module.

The receiving terminal 110 may transmit the transmitting terminal identification information to the server 120 (S120), and may receive the encryption information of the transmitting terminal without the QR identification module from the server 120 (S130). The server 120 may receive the transmitting terminal identification information transmitted by the receiving terminal 110 , and specify the transmitting terminal 130 without a QR identification module to transmit information data to the receiving terminal 110 . The server 120 may transmit encrypted information of the transmitting terminal without a QR identification module used when the transmitting terminal 130 without a QR identification module transmits information to the receiving terminal 110 . The encryption information of the transmitting terminal 130 without a QR identification module may represent information about a rule or an encryption program for encrypting information when the transmitting terminal 130 without a QR identification module transmits information.

The receiving terminal 110 may receive the encrypted information of the transmitting terminal without the received QR identification module, and transmit the receiving terminal encrypted information to the server (S140). The receiving terminal encryption information may indicate information about a rule or an encryption program for encrypting information when the receiving terminal 110 transmits information. In addition, the receiving terminal encryption information may include receiving terminal identification information. The receiving terminal identification information is not included in the receiving terminal encryption information, and may be transmitted separately.

The server may transmit the transmitting terminal encryption information transmitted from the receiving terminal 110 to the transmitting terminal 130 without the QR identification module (S150).

The transmitting terminal 130 without the QR identification module may obtain the encryption information and the transmitting terminal identification information of the receiving terminal from the server (S161). The transmitting terminal 130 without a QR identification module may generate a second QR code by encrypting the information data with the encryption information of the receiving terminal 110 (S162). The second QR code is generated by encrypting information data for transmission by the transmitting terminal 130 without a QR identification module to the receiving terminal 110 as a QR code, and by encryption through the encryption information of the receiving terminal 130 .

The transmitting terminal 130 without a QR identification module may encrypt the information data using the encrypted information of the transmitting terminal without the QR identification module and transmit the encrypted information data to the server while generating the second QR code (S163) ). The second QR code and the encrypted information data have the same content of the information data included, but the second QR code is encrypted through the encryption information of the receiving terminal 130, and the encrypted information data transmitted to the server is the QR identification module The contents of the data are different from each other because they are encrypted through the encryption information of the transmitting terminal without this.

The receiving terminal 110 may recognize (receive) the second QR code displayed on the transmitting terminal 130 without a QR identification module, and decode it with the decoding information of the receiving terminal 110 to obtain information data (S164) . Decryption information of the receiving terminal 110 may represent information about a rule or encryption program used to decrypt a QR code or encrypted information encrypted with the encryption information of the receiving terminal 110 .

The receiving terminal 110 may encrypt the decrypted information data with the encryption information of the transmitting terminal 130 without a QR identification module and transmit it to the server (S170). The server may receive the encrypted information data transmitted by the receiving terminal 110 in this step (S170) and the encrypted information data transmitted by the transmitting terminal 130 without the QR identification module in step S163. Since both the encrypted information data transmitted by the receiving terminal 110 and the encrypted information data transmitted by the transmitting terminal 130 without a QR identification module are encrypted with the encryption information of the transmitting terminal 130 without a QR identification module, two encryption information data is the same.

The server 120 determines whether the encrypted information data transmitted by the receiving terminal 110 and the encrypted information data transmitted by the transmitting terminal 130 without a QR identification module are identical, and determines whether the data matches or not. It can be transmitted to the receiving terminal 110 and the transmitting terminal 130 without the QR identification module (S180). The determination of whether the server 120 is identical can be performed by decrypting the encrypted information data. The server 120 is the QR identification By using the decryption information of the transmitting terminal 130 without a module, the encrypted information data transmitted by the receiving terminal 110 and the encrypted information data transmitted by the transmitting terminal 130 without the QR identification module are decrypted, and the decrypted The server 120 determines whether the information data is the same, if the information data transmitted by the receiving terminal 110 and the information data transmitted by the transmitting terminal 130 without a QR identification module are the same, information indicating that the information has been transmitted correctly can be transmitted to the receiving terminal 110 and the transmitting terminal 130 without the QR identification module. If the information is transmitted correctly, the receiving terminal 110, the server 120, and the transmitting terminal 130 without the QR identification module The mode can be changed to the information transmission and reception standby state The server 120 transmits the information correctly if the information data transmitted by the receiving terminal 110 and the information data transmitted by the transmitting terminal 130 without a QR identification module are not the same It is possible to transmit information indicating that the information has not been transmitted to the receiving terminal 110 and the transmitting terminal 130 without a QR identification module. The information indicating that the information has not been transmitted correctly indicates the reason for the information transmission failure along with the information transmission/reception failure. If the information is not transmitted correctly, the receiving terminal 110, the server 120, and the transmitting terminal 130 without a QR identification module can send and receive information data again in one of S110 to S170. The step may be executed again or the transmission/reception process after the executed step may be executed again.

The information transmission and reception system 100 including a device without a QR identification module replaces the second QR code generation and transmission process generated in the process of transmitting and receiving information of the reception terminal 110 by using the server 120 . The information transmission/reception system 100 including a device without a QR identification module can be used in an existing POS system (a general desktop PC or a terminal with a display device already in use) that does not have a QR identification module or has limited use of a camera, and thus greatly expands the scalability. There are advantages to be gained. For example, the information transmission and reception system 100 including a device without a QR identification module can be used when using a payment or secure login after shopping on a general monitor (desktop PC) rather than a smartphone. Since the first QR code and the second QR code are displayed on the screen without installing a separate security program, and the identification of the QR code can be processed with the user's smartphone, it can be scalable while maintaining security compared to the previous method.

Hereinafter, the components included in the reception terminal 110, the server 120, and the transmission terminal 130 without the QR identification module in the information transmission and reception system 100 including the device without the QR identification module will be described, and each component Describe how the element works.

2 is a diagram illustrating components of a receiving terminal, a server, and a transmitting terminal included in an information transmission/reception system using a QR code including a transmitting terminal without a QR identification module as an embodiment of the present invention.

The reception terminal 110 may be configured to include a QR scan module 111 , an input/output unit (touch screen) 112 , a control module 113 , and a wireless communication module 114 .

The QR scanning module 111 of the receiving terminal 110 is configured to scan a QR code that embeds information.

The input/output unit (touch screen) 112 of the receiving terminal 110 receives an output signal under the control of the control module 113 and outputs the received output signal as an image. In addition, the input/output unit (touch screen) 112 receives a user's touch and outputs an input signal to the control module 113 , and the control module 113 performs an operation according to the input signal.

And the control module 113 of the receiving terminal 110 uses the information obtained by scanning the QR code to obtain encryption information, decryption information, and information data, and displays the contents of the input/output unit (touch screen) 112 It is configured to be displayed through

The control module 113 of the receiving terminal 110, the receiving terminal 110 recognizes the first QR code including the transmitting terminal identification information from the transmitting terminal, and transmits the transmitting terminal identification information to the server, the transmitting terminal identification information Receives the encrypted information of the transmitting terminal based on the server, transmits the encrypted information of the receiving terminal to the server, is generated through the encryption information of the receiving terminal, and receives a second QR code including information data from the transmitting terminal, , by decrypting the second QR code with the decryption information of the receiving terminal to obtain information data, encrypting the information data through the encryption information of the sending terminal without a QR identification module and transmitting it to the server 120, and the server 120 It is possible to control to receive the determination information on whether the information data transmitted to the receiving terminal 110 and the transmitting terminal 130 without a QR identification module from the same.

The wireless communication module 114 of the receiving terminal 110 plays a role in which the receiving terminal 110 transmits and receives information between the server 120 and the transmitting terminal 130 without a QR identification module in the information transmission/reception process.

The receiving terminal 110 may be any one of a smart phone, a tablet PC, a PMP, or may be configured as a dedicated terminal.

The transmission terminal 130 without a QR identification module may be configured to include an input/output unit (touch screen) 131 , a control module 132 , and a wireless communication module 133 .

The input/output unit (touch screen) 131 of the transmitting terminal 130 without a QR identification module receives an output signal under the control of the control module 132 and outputs the received output signal as an image. In addition, the input/output unit (touch screen) 131 receives a user's touch and outputs an input signal to the control module 132, and the control module 132 performs an operation according to the input signal.

The control module 132 of the transmitting terminal 130 without a QR identification module uses the information obtained by scanning the QR code to obtain encryption information, decryption information, and information data, and outputs the contents to the input/output unit (touch screen) ) is configured to display through (131).

The control module 132 of the transmitting terminal 130 without a QR identification module transmits the first QR code including the transmitting terminal identification information to the receiving terminal 110 by the transmitting terminal 130 without a QR identification module, and the second 1 Based on the QR code, obtaining the receiving terminal identification information and the encryption information of the receiving terminal from the server, encrypting the information data through the encryption information of the receiving terminal, and transmitting the information data to the first terminal, and transmitting the information data to the encrypted information of the transmitting terminal It can be encrypted and transmitted to the server through the control so that the determination information on whether the information data transmitted from the server 120 to the receiving terminal 110 and the transmitting terminal 130 without a QR identification module is the same can be received. .

The wireless communication module 134 of the transmitting terminal 130 without a QR identification module transmits and receives information between the server 120 and the receiving terminal 110 in a simple information transmission and reception process by the transmitting terminal 130 without a QR identification module. play a role

The transmitting terminal 130 without such a QR identification module may be any one of a smart phone, a tablet PC, a PMP, or a dedicated terminal.

Next, the server 120 may be configured to include a control unit and a communication module.

Hereinafter, the operation from the viewpoint of each receiving terminal 110 and the transmitting terminal 130 without a QR identification module of the information transmission and reception system 100 including a device without a QR identification module will be described.

3 is a diagram illustrating the operation of a receiving terminal of an information transmission and reception system using a QR code including a transmitting terminal without a QR identification module as an embodiment of the present invention.

The receiving terminal 110 may recognize the first QR code including the transmitting terminal identification information from the transmitting terminal (S310).

The receiving terminal 110 may transmit the transmitting terminal identification information to the server (S320).

The receiving terminal 110 may receive the encryption information of the transmitting terminal based on the transmitting terminal identification information from the server (S330).

The receiving terminal 110 may transmit the encryption information of the receiving terminal to the server (S340).

The receiving terminal 110 may receive a second QR code that is generated through the encryption information of the receiving terminal and includes information data from the transmitting terminal (S350).

The receiving terminal 110 may encrypt the information data through the encryption information of the transmitting terminal and transmit it to the server 120 (S360).

The receiving terminal 110 may receive the determination information on whether the information data transmitted to the receiving terminal 110 and the transmitting terminal 130 without a QR identification module are the same from the server 120 (S370). When the determination information on the same received from the server 120 indicates that the information data has been correctly transmitted, the receiving terminal 110 may change the mode to the information transmission/reception standby state. When the determination information on whether the same received from the server 120 indicates that the information data transmitted by the receiving terminal 110 and the information data transmitted by the transmitting terminal 130 without a QR identification module are not the same, the receiving terminal 110 may receive including the reason for information transmission failure along with information transmission/reception failure, and the receiving terminal 110 executes or executes one step from S110 to S170 again to receive information data again. of the receiving process can be executed again.

4 is a diagram illustrating the operation of a transmitting terminal of an information transmission/reception system using a QR code including a transmitting terminal without a QR identification module as an embodiment of the present invention.

The transmitting terminal 130 without a QR identification module may transmit the first QR code including the transmitting terminal identification information to the receiving terminal 110 (S410).

The transmitting terminal 130 without the QR identification module may receive the receiving terminal identification information and the encryption information of the receiving terminal from the server (S420).

The transmitting terminal 130 without a QR identification module may generate a second QR code by encrypting the information data through the encryption information of the receiving terminal (S430).

The transmitting terminal 130 without the QR identification module may encrypt the information data through the encryption information of the transmitting terminal and transmit it to the server (S440).

The transmitting terminal 130 without a QR identification module may transmit the second QR code to the receiving terminal 110 (S450).

The sending terminal 130 without a QR identification module may receive determination information about whether the information data transmitted to the receiving terminal 110 and the sending terminal 130 without a QR identification module from the server 120 are the same ( S460). When the determination information about the same received from the server 120 indicates that the information data has been transmitted correctly, the transmitting terminal 130 without the QR identification module may change the mode to the information transmission/reception standby state. When the determination information on whether the same received from the server 120 indicates that the information data transmitted by the receiving terminal 110 and the information data transmitted by the transmitting terminal 130 without a QR identification module are not the same, QR identification The transmitting terminal 130 without a module can receive including the reason for the information transmission failure along with the information transmission and reception failure, and the transmitting terminal 130 without a QR identification module is one of S110 to S170 for transmitting information data again. You can re-execute the step of or re-execute the transmission process after the executed step.

The information transmission/reception system 100 including a device without a QR identification module may be used as a simple payment system when the transmitted information data is payment information. The simple payment system is configured to acquire product/payment information by scanning a QR code provided with all products in an on/offline store using a user terminal without a separate credit card. In addition, the payment server receives only the delivery without a separate membership registration/login procedure, and can complete the payment through the payment processing of the credit card company or the mobile carrier using the credit card information or smart phone number registered in advance in the user terminal. . Users do not need to carry a credit card and do not need to issue a paper receipt, which is very convenient and eco-friendly. And even in the case of offline stores, you can use the QR code provided for each product without the need for a card inquiry machine. In addition, since the payment server pays without a separate membership registration/login procedure, there is no risk of leakage of personal information.

The simple payment system may include a user terminal, a payment server, and a payment terminal. The simple payment system corresponds to the information transmission and reception system 100 including a device without a QR identification module, the user terminal corresponds to the reception terminal 110 , the payment server corresponds to the server 120 , and the payment terminal corresponds to the QR identification It may correspond to the transmitting terminal 130 without a module. The user terminal, the payment server, and the payment terminal may perform all the operations of the receiving terminal 110 , the server 120 , and the transmitting terminal 130 without the QR identification module described above.

The information transmission and reception system 100 including the simple payment system of the present invention or a device without a QR identification module may use a 'public key encryption algorithm' that uses different keys for encryption and decryption.

The 'public key encryption algorithm' is also called an asymmetric key encryption algorithm due to the characteristic that different keys are used for encryption and decryption. This 'public key encryption algorithm' generates two keys through a key generation algorithm, reveals one of them as if a phone number was disclosed in a phone book, and keeps the other as a private key for use. For example, if 'A' wants to send a document to 'B', 'A' uses the public key of 'B' to encrypt the document, and 'B' stores the received cipher text as its own. It will be unlocked with the private key. Therefore, the user of the 'public key encryption algorithm' only needs to manage his/her own private key regardless of the number of people who want to exchange information with each other, even if the number of people increases.

A representative example of a 'public key encryption algorithm' is the Rivest-Shamir-Adleman (RSA) algorithm. In the RSA algorithm, a private key and a public key are generated by a predetermined key generation algorithm. In general, the process of selecting a private key and a public key in the RSA algorithm is as follows.

First, two large prime numbers (p, q) are selected, the prime numbers (p, q) are used as two private keys, and the product (p*q) of the two numbers is selected as a public key (n). Then, after applying the public key (n) to the Euler formula, the result value (∮(n)) and an arbitrary integer (e) that are prime to each other are selected as another public key (e) . Finally, a number (d) satisfying Equation 1 is calculated by the Euclidean Algorithm, and the two prime numbers (p, q) are selected as a private key.

[Equation 1]

e d ≡ 1 (mod ∮(n))

Hereinafter, a detailed configuration of an information transmission/reception system using a QR code in communication between terminals will be described.

5 is a diagram illustrating an information transmission/reception system using a QR code in communication between terminals according to an embodiment of the present invention.

Referring to FIG. 5 , an information transmission/reception system 200 using a QR code in communication between terminals according to an embodiment of the present invention (hereinafter referred to as 'information transmission/reception system using a QR code between terminals') is a receiving terminal 210 ), it may be configured to include the transmitting terminal 220 .

In the present invention, terminal-to-device communication refers to device-to-device communication, and refers to an exchange system capable of transmitting and receiving calls and information directly between devices in a short distance without the aid of a radio relay facility. An example of communication between terminals is a communication system that can make calls even if radio relay equipment such as a base station does not work properly or does not exist at all. ‘LTE D2D’ technology, an example of recent device-to-device communication, enables communication devices within a short distance to communicate using LTE. LTE D2D seemed to create a variety of new services. These include location-based social network service (SNS), transmission of crime information in specific areas, new mobile advertisements, and vehicle-to-vehicle communication. Even if a base station in a specific area suddenly stops working, communication between devices is maintained, so it is expected that it can be used for public services to notify disasters, etc. Inter-terminal communication in the present invention may be understood to include all inter-terminal and device-to-device communication currently available or available in the future, including D2D communication.

The information transmission/reception system 200 using the inter-terminal QR code is configured to scan the QR code so that the receiving terminal 210 acquires the information data transmitted from the transmitting terminal 220 . The information transmission/reception system 200 using the inter-terminal QR code may transmit information used for transmission and reception of information data as well as information data in the information transmission/reception process.

The reception terminal 210 is a terminal for receiving information data from the information transmission/reception system 200 using a QR code between terminals. On the other hand, the receiving terminal 210 may be configured to also serve to transmit the received information data or other information data before or after receiving the information data. The receiving terminal 210 may be any terminal including a communication function, such as a smart phone, a tablet PC, a laptop computer, and may be configured as a dedicated terminal used for the information transmission/reception system 200 using a QR code between terminals.

The transmitting terminal 220 is a terminal that transmits information data in the information transmission/reception system 200 using the inter-terminal QR code. On the other hand, the transmitting terminal 220 may be configured to also serve as a role of receiving information data or other information data to be transmitted before or before transmitting the information data. The transmitting terminal 220 may be any terminal including a communication function, such as a smart phone, a tablet PC, a notebook computer, and may be configured as a dedicated terminal used for the information transmission/reception system 200 using a QR code between terminals.

The information transmission/reception system 200 using the inter-terminal QR code may be configured not to include a server. Accordingly, the information transmission/reception system 200 using the inter-terminal QR code can be used in a field requiring data processing using the inter-terminal QR code without the need for a server.

The receiving terminal 210 may recognize the first QR code of the transmitting terminal 220 (S510). The receiving terminal 210 may receive the transmitting terminal identification information corresponding to the transmitting terminal 220 by recognizing the first QR code.

The receiving terminal 210 may receive the transmitting terminal identification information and generate a second QR code including the receiving terminal identification information for transmission to the transmitting terminal 220 (S520).

The receiving terminal 210 may transmit the generated second QR code to the transmitting terminal 220 (S530).

The transmitting terminal 220 may obtain the receiving terminal identification information by recognizing (receiving) the second QR code generated in the receiving terminal 210 with the QR scan module or camera of the transmitting terminal 220 (S540).

The transmitting terminal 220 may generate a third QR code including transmission data for transmission to the receiving terminal 210 through the receiving terminal identification information (S550).

The transmitting terminal 220 may transmit the third QR code to the receiving terminal 210 (S560). Receiving terminal 210 may receive the third QR code, and obtain the transmission data included in the third QR code.

The information transmission/reception system 200 using a QR code in communication between terminals can be used in a field requiring data processing using a QR code between terminals without the need for a server. In addition, the information transmission and reception system 200 using a QR code in communication between terminals can be applied in fields that do not require security by removing encryption. Accordingly, the information transmission/reception system 200 using a QR code in inter-terminal communication is a simple two-way data transmission/reception method where security is used for access authentication or login, or where there is a restriction on the use of wireless short-range communication (NFC or RFID). can be used as an alternative to

The information transmission/reception system 200 using a QR code in terminal-to-device communication includes an 'identification code' that determines the type of data in the first QR or the second QR code, and the identification code is “URL”, “ID”, What type of data such as “HASH” may be provided to the receiving terminal 210 in advance. This identification code can be applied to selectively read only permitted data by setting the authority in the sending/receiving device in advance. Since the information transmission/reception system 200 using the QR code in communication between terminals does not encrypt only the identification information, and transmits and receives data itself by encrypting it, it can be used as a means such as secondary authentication.

Hereinafter, the components included in the receiving terminal 210 and the transmitting terminal 220 in the information transmission/reception system 200 using the QR code in inter-terminal communication will be described, and the contents of operation of each component will be described. do.

6 is a diagram illustrating components of a receiving terminal and a transmitting terminal included in an information transmission/reception system using a QR code in terminal-to-device communication as an embodiment of the present invention.

First, the reception terminal 210 may be configured to include a QR scan module 211 , an input/output unit (touch screen) 212 , a control module 213 , and a wireless communication module 214 .

The QR scanning module 211 of the receiving terminal 210 is configured to scan the QR code embedding information.

The input/output unit (touch screen) 212 of the receiving terminal 210 receives an output signal under the control of the control module 213 and outputs the received output signal as an image. In addition, the input/output unit (touch screen) 212 receives a user's touch and outputs an input signal to the control module 213 , and the control module 213 performs an operation according to the input signal.

In addition, the control module 213 of the receiving terminal 210 uses the information obtained by scanning the QR code to obtain information and information data used for information transmission and reception, and displays the contents to the input/output unit (touch screen) 212 ) through which it is configured.

The control module 213 of the receiving terminal 210 is the receiving terminal 210 recognizes the first QR code including the transmitting terminal identification information from the transmitting terminal 220, the second QR code including the receiving terminal identification information can be generated and transmitted to the transmitting terminal 220 , and receiving a third QR code including information data from the transmitting terminal 220 to obtain information data.

The wireless communication module 214 of the receiving terminal 210 plays a role in which the receiving terminal 210 transmits and receives information between the transmitting terminals 220 in an information transmission/reception process.

The receiving terminal 210 may be any one of a smart phone, a tablet PC, a PMP, or may be configured as a dedicated terminal.

The transmitting terminal 220 may be configured to include a QR scan module 221 , an input/output unit (touch screen) 222 , a control module 223 , and a wireless communication module 224 .

The QR scanning module 221 of the transmitting terminal 220 is configured to scan the QR code embedding information.

The input/output unit (touch screen) 222 of the transmitting terminal 220 receives an output signal under the control of the control module 223 and outputs the received output signal as an image. In addition, the input/output unit (touch screen) 222 receives a user's touch and outputs an input signal to the control module 223 , and the control module 223 performs an operation according to the input signal.

The control module 223 of the transmitting terminal 220 uses the information obtained by scanning the QR code to obtain information and information data used for information transmission and reception, and displays the contents to the input/output unit (touch screen) 222 is configured to be displayed through

The control module 223 of the transmitting terminal 220 sends the transmitting terminal 220 a first QR code including the transmitting terminal identification information to the receiving terminal 210, based on the first QR code identification of the receiving terminal It is possible to control to receive the second QR code including the information, and to transmit the information data to the transmitting terminal (220).

The wireless communication module 224 of the transmitting terminal 220 plays a role in which the transmitting terminal 220 transmits and receives information between the receiving terminals 210 in a simple information transmission/reception process.

The transmitting terminal 220 may be any one of a smart phone, a tablet PC, a PMP, or may be configured as a dedicated terminal.

Hereinafter, operations at the viewpoints of the receiving terminal 210 and the transmitting terminal 220 of the information transmitting and receiving system 200 using the inter-terminal QR code will be described.

7 is a diagram illustrating the operation of a receiving terminal of an information transmission/reception system using a QR code between terminals as an embodiment of the present invention.

The receiving terminal 210 may recognize the first QR code including the transmitting terminal identification information from the transmitting terminal (S720).

The receiving terminal 210 may generate a second QR code including the receiving terminal identification information (S730).

The receiving terminal 210 may transmit the second QR code to the transmitting terminal 220 (S730).

The receiving terminal 210 may receive the third QR code including the transmission data from the transmitting terminal (S740).

The receiving terminal 210 may receive the information data through the third QR code (S750).

8 is a diagram illustrating the operation of a transmitting terminal of an information transmission/reception system using a QR code between terminals as an embodiment of the present invention.

The transmitting terminal 220 may transmit the first QR code including the transmitting terminal identification information to the receiving terminal 210 (S810).

The transmitting terminal 220 may receive the second QR code including the receiving terminal identification information from the receiving terminal 210 (S820).

The transmitting terminal 220 may obtain the receiving terminal identification information (S830).

The transmitting terminal 220 may generate a third QR code including transmission data to be transmitted to the receiving terminal 210 (S840).

The transmitting terminal 220 may transmit the third QR code to the receiving terminal 210 (S850).

The steps of a method or algorithm described in connection with an embodiment of the present invention may be implemented directly in hardware, as a software module executed by hardware, or by a combination thereof. A software module may contain random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM, or It may reside in any type of computer-readable recording medium well known in the art to which the present invention pertains.

In the above, embodiments of the present invention have been described with reference to the accompanying drawings, but those skilled in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing the technical spirit or essential features thereof. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: Information transmission and reception system including a device without a QR identification module
110: receiving terminal
111: QR scan module
112: input/output unit (touch screen)
113: control module
114: wireless communication module
120 : server
130: transmitting terminal
131: input/output unit (touch screen)
132: control module
133: wireless communication module
200: information transmission and reception system using QR code between terminals
210: receiving terminal
211: QR scan module
212: input/output unit (touch screen)
213: control module
214: wireless communication module
220: transmitting terminal
221: QR scan module
222: input/output unit (touch screen)
223: control module
224: wireless communication module

Claims (10)

receiving, by the first terminal, a first two-dimensional barcode including identification information of the second terminal from the second terminal;
transmitting, by the first terminal, identification information of the second terminal to a server;
receiving, by the first terminal, encryption information of the second terminal corresponding to the identification information of the second terminal from the server;
generating, by the first terminal, first encryption information, wherein the first encryption information is information obtained by encrypting the encryption information of the first terminal using the encryption information of the second terminal;
transmitting, by the first terminal, the first encryption information to the second terminal;
receiving, by the first terminal, a second two-dimensional barcode including information data (D1) encrypted using the encryption information of the first terminal from the second terminal;
obtaining, by the first terminal, the information data (D) by decrypting the encrypted information data (D1) recorded in the second two-dimensional barcode with the decryption information of the first terminal;
The first terminal encrypts the information data (D) using the encryption information of the second terminal to generate encrypted information data (D2), and transmitting the encrypted information data (D2) to the server; and
A first terminal comprising the step of receiving the determination information from the server,
The determination information is determination information for determining whether the information data (D) decrypted from the encrypted information data (D2) transmitted from the first terminal and the second terminal to the server, respectively, are identical to each other ,
A method of sending and receiving information using a two-dimensional barcode for easy payment.
According to claim 1,
confirming that the information data (D) is correctly received when the determination information on whether the same is the same; and
The method further comprising the step of confirming that the information data (D) is not correctly received when the determination information for the same does not indicate that the information is the same,
A method of sending and receiving information using a two-dimensional barcode for easy payment.
3. The method of claim 2,
When the information data (D) is not correctly received, characterized in that the first two-dimensional barcode is received again from the second terminal,
A method of sending and receiving information using a two-dimensional barcode for easy payment.
transmitting, by the second terminal, a first two-dimensional barcode including identification information of the second terminal to the first terminal;
receiving, by the second terminal, first encryption information, wherein the first encryption information is information obtained by encrypting the encryption information of the first terminal based on the first two-dimensional barcode using the encryption information of the second terminal;
obtaining, by a second terminal, the encryption information of the first terminal by decrypting the first encryption information through the decryption information of the second terminal;
generating, by a second terminal, the information data (D) by using the encryption information of the first terminal to generate encrypted information data (D1);
generating, by a second terminal, a second two-dimensional barcode based on the encrypted information data (D1);
transmitting, by a second terminal, the second two-dimensional barcode to the first terminal;
A second terminal encrypting the information data (D) using the encryption information of the second terminal to generate encrypted information data (D2), and transmitting the encrypted information data (D2) to the server; and
A second terminal comprising the step of receiving the determination information from the server,
The determination information is determination information for determining whether the information data (D) decrypted from the encrypted information data (D2) transmitted from the first terminal and the second terminal to the server, respectively, are identical to each other ,
A method of sending and receiving information using a two-dimensional barcode for easy payment.
5. The method of claim 4,
confirming that the information data (D) is correctly received when the determination information on whether the same is the same; and
The method further comprising the step of confirming that the information data (D) is not correctly received when the determination information for the same does not indicate that the information is the same,
A method of sending and receiving information using a two-dimensional barcode for easy payment.
6. The method of claim 5,
When the information data (D) is not correctly received, characterized in that the first two-dimensional barcode is transmitted back to the first terminal,
A method of sending and receiving information using a two-dimensional barcode for easy payment. delete delete delete delete

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