KR20190023323A - System for detecting false qr code - Google Patents

Abstract

The present invention relates to a QR code forgery detection system. The QR code forgery detection system comprises: a detection device for detecting the QR code of a product to be authenticated with a QR code in which product history information and genuine product verification information are organically mixed in accordance with a predetermined pattern; and a server device for extracting the product history information by applying the genuine product verification information and the predetermined pattern, comparing with pre-stored comparison history information to determine whether the QR code is forged. Therefore, the QR code forgery detection system can provide reliable consumption guidelines to purchase genuine products, not forged products.

Description

SYSTEM FOR DETECTING FALSE QR CODE [0002]

The present invention relates to a QR code forgery detection system, and more particularly, to a QR code forgery detection system capable of detecting whether a QR code is falsified or altered.

Generally, in order to sell a product, it is necessary to advertise and marketing the product, and QR code is used at that time. At the corner of the corner of the street billboard these days, a square irregular mark is inserted and this mark is the QR code.

The QR code is an abbreviation of "Quick Response code", which means that quick response can be obtained. The QR code was developed for the first time in Japan, and unlike conventional UPC barcodes, which consist of a number of vertical lines, it contains more information and can be quickly recognized.

The QR code is a more advanced code system than the UPC barcode in such a large amount of information compression rate and fast recognition rate.

More specifically, the existing UPC barcode has a one-dimensional configuration that can only contain numerical information of a maximum of 20 female characters in the horizontal array. However, the QR code uses the width and the length to have a maximum of 7,089 characters, Has a two-dimensional structure capable of recording a maximum of 4,296 characters and a maximum of 1,817 characters in Chinese characters.

Therefore, the QR code can contain a long sentence Internet address (URL), photo and video information, map information, and business card information. Recently, QR codes can be widely used as important promotional and marketing means for corporations because they can compress and transmit a large amount of information easily.

Also, unlike near-field communication (NFC), QR codes do not require complicated electronic devices or special techniques to recognize the QR codes, and it is possible to recognize QR codes only by scanning. Nowadays, it is obvious that the application area of QR codes will continue to expand because anyone can download an application that can scan QR codes to electronic devices such as smart phones.

Because of these advantages of QR codes, QR codes can be used for product activation for products produced by a particular company.

For example, when a specific company sells a QR code including information of a company product to a company product, the user who uses the QR code attached to the product is referred to as a smart phone It is possible to verify that the product is a product of a specific company through a scan using the authentication application of the company.

On the other hand, the QR code has an environment where all people can easily and inexpensively produce without restriction because the production technology is disclosed. Because of this production environment, QR code can be falsified or altered and used as a tool of crime.

If this applies to the above example, criminals can produce a QR code containing information that a specific company product is attached, and sell the QR code on a non-genuine product, It means that the product can be purchased. Therefore, consumers do not buy the desired genuine products at a reasonable price, but buy the counterfeit products at unreasonable prices, which causes the market reliability and the desire to decrease their purchasing power.

On the other hand, Korean Patent Publication No. 10-2012-0125025, which is a prior art related to the present invention, discloses a vehicle management system in cooperation with a portable terminal, comprising: a trip computer for collecting vehicle information; A cluster microcomputer having a QR code generation module for converting information into a QR code, receiving the vehicle information from the trip computer and converting the received vehicle information into a QR code; A cluster display for receiving and displaying a QR code from the cluster microcomputer; The trip computer generates initial vehicle information on the basis of the vehicle information collected when the vehicle is started, generates final vehicle information based on the collected vehicle information when the vehicle is turned off, And the vehicle information is generated by calculating a difference value between the final vehicle information and the final vehicle information.

However, the prior art does not propose a solution to the problem of forgery and modulation of QR code and to solve it. Accordingly, the present invention seeks to provide a solution to a system capable of detecting forgery and modulation of QR codes.

(Document 1) Korean Patent Registration No. 10-2012-0125025 (November 14, 2012)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a system and method for generating a QR code by organically mixing product history information and activation information, And to provide a QR code forgery detection system capable of discriminating whether or not a user has a QR code.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus and method for controlling the same.

According to an aspect of the present invention, there is provided an authentication target product to which a QR code is attached, the product history information and the activation information being organically mixed according to a predetermined pattern. A detecting device for detecting the QR code; And a server device for extracting the product history information by applying the product activation information and the predetermined pattern to the QR code detected from the detection device and comparing the product history information with previously stored comparison history information to determine whether the QR code is forged or not A QR code forgery detection system is provided.

In the present invention, the detection device may further include: a photographing unit for photographing the QR code; A detecting unit for detecting an area corresponding to the QR code among the image data transmitted through the photographing unit; And a communication unit for transmitting the QR data detected by the detection unit.

The present invention may further comprise a notification device for providing a user with a forgery or falsification of a QR code fed back from the server device.

A display for displaying a photographing area photographed by the photographing unit according to the present invention; And a speaker for guiding the photographing direction of the detection device according to the position of the QR code photographed on the display.

The server apparatus according to the present invention includes: an extracting unit for extracting the product history information by converting the QR code detected by the detecting apparatus according to the activation information and the predetermined pattern; A storage unit for storing the comparison history information and the product authentication information; And a comparing unit for comparing the product history information provided by the extracting unit with the comparison history information.

In the present invention, it is preferable that the activation information is generated by applying an encryption algorithm to the production time information and the random number information of the product to be authenticated.

According to another aspect of the present invention, there is provided a method of generating a QR code, the product history information and the activation information being organically mixed according to a predetermined pattern; And extracting the product history information by applying the product activation information and the predetermined pattern to the QR code and comparing the product history information with previously stored comparison history information to determine whether the QR code is forged or not. A method of operation is provided.

In the present invention, the step of generating the QR code includes: applying the specific time value corresponding to the production time point of the product to be authenticated to the first cryptographic function and then exclusive-ORing the random number to generate the product activation information; Generating an information value by applying a second encryption function to the product history information on the authentication target product; Combining the information value with the activation information and then encrypting the information value using the secret key value to generate encrypted data; Generating QR source data by combining the product unique identifier of the product to be authenticated, the specific time value, the encrypted data, and the product history information; And producing the QR code using the QR source data.

The method may further include storing the product history information, the random number, and the specific time value in a server for determining whether the QR code is forged or falsified.

Detecting the QR code attached to the product to be authenticated in the present invention through a detection device; Transmitting the detected QR code to a server apparatus; And feedback to the detection device whether the QR code is forged or not.

In the present invention, the detecting step may include: guiding a photographing direction according to a position of the QR code displayed on a display; And a step of recognizing and detecting the QR code by adjusting the photographing direction according to the guiding step.

In the present invention, the step of determining whether the QR code is forged or falsified includes: generating QR sod data including a unique identifier corresponding to the QR code, a specific time value, encrypted data, and product history information; A first comparing step of parsing and extracting a random number by referring to the QR source data, and comparing the random number with a previously stored random number; Applying a first encryption function to a previously stored specific time value, and then exclusive-ORing the random number with the random number to generate activation information; Decrypting the encrypted data S 'using a public key value to generate decrypted data D'; Extracting and storing a value corresponding to the product history information by exclusive-ORing the product data with the decrypted data; And a second comparison step of applying a second encryption function to the previously stored product history information and comparing the second encryption function with the stored value in the storing step.

The method may further include determining whether the QR code is forged or not according to a result of the first or second comparison step.

The QR code forgery detection system according to the present invention provides the following effects.

The present invention has the effect of providing a stable consumption guide line so that the consumer can purchase the right genuine product instead of the counterfeit product by detecting forgery and falsification of the QR code attached to the genuine product.

In addition, the present invention is directed to a company that manufactures a genuine product, moves a reasonable selling cost, guarantees a stable quality to a consumer consuming the genuine product, thereby enhancing the reliability of the producer and the consumer and promoting a healthy consumption culture .

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

1 is a block diagram for explaining a QR code forgery detection system according to an embodiment of the present invention;
FIG. 2 is a block diagram for explaining the detection apparatus and the server apparatus of FIG. 1;
3 is a flowchart illustrating a method for generating a QR code according to an embodiment of the present invention.
4 is a flowchart illustrating a method of verifying a QR code according to an embodiment of the present invention.

The description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It is to be understood that the singular " include "or" have ", as used herein, is intended to encompass a plurality of expressions, unless the context clearly dictates otherwise, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In each step, the identification code (e.g., a, b, c, etc.) is used for convenience of explanation, the identification code does not describe the order of each step, Unless otherwise stated, it may occur differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present application.

Hereinafter, a QR code forgery detection system according to a preferred embodiment of the present invention will be described in detail.

1 is a block diagram for explaining a QR code forgery detection system according to an embodiment of the present invention.

Referring to FIG. 1, the QR code forgery detection system includes an authentication target product 100 to which a QR code (NURI) is organically mixed according to a predetermined pattern of product history information and activation information; A detection device (200) for detecting the QR code (NURI); And extracting the product history information by applying the product activation information and the predetermined pattern to the QR code (NURI) detected from the detection device (200) and comparing the product history information with the previously stored comparison history information, And a server device 300 for judging whether or not a forgery or falsification has occurred.

First of all, the product to be certified 100 is all products to which a QR code (NURI) is attached in order to confirm all the products that the company can produce and all the products that the consumer can purchase, as well as the certification.

A QR code (NURI) is attached to the surface of the product 100 to be authenticated, and the QR code (NURI) may have a form of two-dimensional or more in which points, lines or faces are repeated. The QR code NURI includes product history information such as characteristic history information, distribution history information, manufacturer history information, and creation history information for the product 100 to be authenticated. In particular, the QR code (NURI) NURI) is characterized in that such product history information and product activation information are generated by mixing them organically according to a predetermined pattern.

The reason why the product history information and the product activation information are organically mixed according to a predetermined pattern is that forgery and fake can be performed when the product history information and the product activation information are produced in a QR code (NURI) through a simple combination. In order to prevent forgery and falsification of the QR code (NURI), it is possible to generate a QR code (NURI) in the same manner as shown in FIG. 3 and FIG. 4 to be described later and to detect the forgery or falsification using the generated QR code (NURI) .

Next, the detecting device 200 is configured to detect a QR code (NURI) and is an electronic device including a smart phone, a tablet PC, a wearable glass, (NURI) to scan, and to include all types of electronic devices capable of data communication.

Here, the detection apparatus 200 may be provided with a display V for allowing the user to view the captured QR code NURI and buttons B for various functions necessary for capturing the QR code NURI have.

For example, the display device V may include a feedback device FD for providing the feedback data FD to the user, which is output from the server device 300, And the speaker S corresponds to a notification device for notifying the feedback data FD through the auditory sense.

Finally, the server device 300 extracts the product history information by applying the activation information and the predetermined pattern to the QR code (NURI) detected from the detection device 200, compares the product history information with the previously stored comparison history information, NURI) is forged. Here, the comparison history information means product history information stored in advance in the server apparatus 300. [

As will be described later, the server device 300 stores the comparison history information and the product activation information corresponding to the product history information. Therefore, the server device 300 extracts the product history information from the QR code (NURI) using the activation information and the predetermined pattern, and outputs the result of the comparison between the extracted product history information and the previously stored comparison history information to the feedback data FD It is possible to provide the signal to the detection device 200.

The user who has transmitted the QR code NURI through the detection device 200 then transmits the verification product 100 with the QR code NURI attached thereto via the feedback data FD sent to the detection device 200 It is possible to judge whether it is genuine or fake.

The forgery-and-alteration detection system according to the embodiment of the present invention includes an authentication object product 100 having a QR code (NURI) in which activation information is organically mixed according to product history information and a predetermined pattern, and a QR code (NURI) And a server device 300 for extracting product history information from the detected QR code NURI and determining whether the QR code NURI is forged or not. With this configuration, it is possible to judge whether a forgery or falsification of the QR code (NURI) attached to the authentication target product 100 is provided to the user. This allows the user to purchase an appropriate genuine product And can further improve the reliability of producers and consumers.

2 is a block diagram for explaining the detection apparatus 200 and the server apparatus 300 of FIG.

Referring to FIG. 2, the detection apparatus 200 includes a photographing unit 210 for photographing the QR code NURI; A detecting unit 220 for detecting an area corresponding to the QR code NURI among the image data transmitted through the photographing unit 210; A communication unit 230 for transmitting the QR code NURI detected by the detecting unit 220; And a control unit 240 for controlling the photographing unit 210, the detecting unit 220, and the communication unit 230.

1, the detection apparatus 200 may include a display unit V, a speaker S, and a photographing unit 210, a detection unit 220, a communication unit 230, and a control unit 240.

Here, the display V is a structure for allowing the detecting apparatus 200 to recognize and detect the QR code NURI accurately, and the QR code NURI is accurately placed in the actual photographing region photographed by the photographing section 210 It is possible to guide the user to adjust the photographing direction of the detecting device 200 by referring to the position of the QR code NURI photographed on the display V. [ In addition, the display V visually expresses the result of whether the authentication target product 100 is genuine or not, such as a color or a message, according to the feedback data FD to be described later.

Likewise, the speaker S audibly expresses the result of whether or not the authentication target product 100 is a genuine article, such as sound or voice, in accordance with the feedback data FD provided from the server apparatus 300. When the QR code (NURI) is not positioned in the photographing area in cooperation with the display (V) for a user having a poor visual acuity, the photographing direction of the detecting device 200 is separately set so that the QR code (NURI) It is possible to guide by built-in voice.

For reference, the control unit 240 of the detecting device 200 to be described later defines a direction in which the detecting device 200 should move according to the position of the QR code NURI displayed on the display V For example, when the QR code (NURI) is imaged in the left area of the display area on the display V, the speaker S provides a voice to move the detecting device 200 in the leftward direction, It is possible to provide a voice to move the detecting device 200 in the right direction in the speaker S when the QR code NURI is photographed in the right area of the detecting device 200. [

Therefore, the user using the detecting device 200 adjusts the photographing direction of the detecting device 200 in accordance with the voice guidance, and as a result, the detecting device 200 photographs the QR code NURI in a desired arrangement, Can be detected. Then, the detecting apparatus 200 transmits the data DAT corresponding to the detected QR code NURI to the server apparatus 300.

Referring again to FIG. 2, the server 300 includes a communication unit 310 for receiving the QR code (NURI) detected from the detection device 200; An extracting unit (320) for converting the QR code (NURI) received by the communication unit (310) according to the activation information and the predetermined pattern to extract the product history information; A storage unit 330 for storing the comparison history information and the product authentication information; And a comparing unit 340 for comparing the product history information provided by the extracting unit 320 with the comparison history information.

A more detailed description of the configuration of each of the detection apparatus 200 and the server apparatus 300 of FIG. 2 will be described in more detail with reference to the operation description of FIG. 3 and FIG.

3 is a flowchart illustrating a method of generating a QR code (NURI) according to an embodiment of the present invention.

The manufacturer of the product 100 to be certified passes through the first to fifth generation steps (G_S1, G_S2, G_S3, G_S4, and G_S5) to generate the QR code (NURI).

First, in the first generation (G_S1), the specific time value (TS) is applied to the first encryption function (H1), and then exclusive OR is performed with the random number (R) to generate the activation information (PSK).

Here, the specific time value TS refers to a time corresponding to a product production time point related to the product 100 to be authenticated, the first encryption function H1 means an encryption algorithm used to encrypt specific data, , A random number (R) means a set of numbers that are collected with some probability when trying to collect several samples in a randomly scattered number of sets.

The activation information PSK generated in the first generation step G_S1 is used as a criterion for determining whether the QR code NURI of the authentication target product 100 is forged or not.

Next, in the second generation step G_S2, the information value D is generated by applying the second encryption function H2 to the product history information InF for the product 100 to be authenticated.

Here, the product history information InF may include product history information such as characteristic history information, distribution history information, manufacturer history information, and creation history information of the product 100 to be authenticated.

The information value D generated in the second generation step G_S2 is used as a criterion for determining whether the product 100 to be authenticated is a product or not and for determining whether the product 100 is forged or not, Standard.

For reference, in the embodiment of the present invention, the first encryption function H1 is applied to the product activation information PSK and the second encryption function H2 is applied to the product history information InF, PSK) and product history information (InF), it is necessary to solve the problem of the simple combination and secure a condition for judging whether the QR code (NURI) is forged or not.

Next, in the third generation step (G_S3), the information value D and the activation information (PSK) are exclusive-ORed and then encrypted using the secret key value SK of the manufacturer to generate encrypted data S In the fourth generation step G_S4, the QR source data Y is generated by combining the product unique identifier (PID), the specific time value TS, the encrypted data S, and the product history information InF. Here, the product unique identifier (PID) means the unique number of the product 100 to be authenticated.

Finally, in the fifth generation step (G_S5), a QR code (NURI) is produced using the QR source data (Y). At this time, the server device 300 may store the product history information InF, the random number R, and the specific time value TS in the storage unit 330 of FIG.

The QR code forgery-and-detection detecting system according to the embodiment of the present invention generates encrypted data S by beta-logically adding product activation information (PSK) to product history information InF for the product 100 to be authenticated, It is possible to generate the QR code NURI by using the unique identifier (PID), the specific time value TS, the QR source data Y obtained by combining the encrypted data S and the product history information InF. Therefore, in the case of the QR code (NURI) generated through the existing simple combination, it is impossible to judge whether the product is a genuine article, and it is impossible to forgive the product. In the case of the QR code (NURI) It is possible to clearly determine whether the QR code (NURI) is falsified or not through the forgery or falseness determination method to be described later since the activation information (PSK) is generated by mixing the history information InF in accordance with the predetermined pattern.

Meanwhile, the generated QR code (NURI) is attached to the authentication target product 100 shown in FIG. 1 and is sold to consumers. Then, the consumer determines whether the QR code (NURI) has been forged or not through the detection device 200 and the QR code (NURI) using the detection device 200 to determine whether the product 100 to be authenticated is a genuine product And transmits it to the server apparatus 300. [0033] FIG.

2, the consumer shoots a QR code (NURI) attached to the product 100 to be authenticated through the photographing unit 210 of the detecting device 200, and the detecting unit 220 detects the QR code The QR code (NURI) is detected and detected. Then, the communication unit 230 transforms the recognized QR code (NURI) into transmittable data (DAT) and transmits it. The QR code NURI generated through the procedure of FIG. 3 is transmitted to the server apparatus 300 according to the internal operation of the detecting apparatus 200.

4 is a flowchart illustrating a method of verifying a QR code (NURI) according to an embodiment of the present invention.

As described above, the detection apparatus 200 transmits data (DAT) corresponding to the QR code (NURI) to the server apparatus 300. Then, the server device 300 performs the first through sixth verification steps (V_S1, V_S2, V_S3, V_S4, V_S5, and V_S6) for the verification method of the QR code (NURI).

First, at the first verification step (V_S1), QR source data (Y`) corresponding to the QR code (NURI) is generated and the product unique identifier (PID`) and the specific time value TS`), encrypted data (S`) and product history information (InF`). Here, since it is not known whether the QR code (NURI) is normal or forged or modified, it is written as Y` instead of Y. [

For reference, the product unique identifier (PID), the specific time value (TS`), the encrypted data (S`) and the product history information (InF`) obtained at this time are seed data that has not yet been decoded.

The second verification step V_S2 parses and extracts the random number R` by referring to the predetermined format in the QR source data Y` and outputs the extracted random number R` to the server device 300 And compares it with the previously stored random number (R). If the extracted random number R 'is different from the previously stored random number R, it is determined that the QR code NURI is forged and transmitted to the detecting device 200 as the feedback data FD.

Next, in the third verification step (V_S3), the previously stored specific time value (TS) is applied to the first encryption function (H1), and then exclusive logical sum is added to the random number (R`) to generate the activation information (PSK`).

Next, in the fourth verification step (V_S4), the decrypted data (D`) is generated by decoding the encrypted data (S ') using the public key value (PK), and in the fifth verification step (V_S5) (PSK`) to the data (D`), and extracts a value corresponding to the product history information (InF`) and stores the value in V. For reference, the encrypted data S when generating the QR code NURI includes the decrypted data D 'and the activation information PSK' since the product history information InF and the specific time value TS are included. Quot; means that the product history information InF extracts the encrypted product history information D. That is, V means encrypted product history information extracted from the QR source data (Y ').

Finally, in the sixth verification step (V_S6), the second encryption function (H2) is applied to the product history information InF stored in the storage unit 330 and the V generated in the fifth verification step (V_S5) The encrypted product history information extracted from the data (Y ') is compared to determine whether or not the same is the same.

Since the second encryption function H2 is applied to the product history information InF as shown in the second generation step G_S2 of FIG. 3, since it is the encrypted product history information D, it is generated in the fifth verification step V_S5 (NURI) is normal if they are equal to each other, and if they are not equal to each other, it means that the QR code (NURI) is forged and abnormal.

2, when the consumer transmits data (DAT) corresponding to the QR code (NURI) to the server apparatus 300 through the detection apparatus 200, the communication unit 310 of the server apparatus 300 ). The extracting unit 320 extracts the product history information InF` by converting the data DAT corresponding to the QR code NURI according to the activation information PSK`, The product history information InF` is compared with the product history information InF stored in the storage unit 330 to detect whether the QR code NURI is forged or not. The detected result of the forgery or falsification is transmitted to the detecting device 200 through the feedback data FD in the communication unit 310 again.

Therefore, the user who intends to determine whether the QR code (NURI) attached to the authentication target product 100 is forged or not can be provided with the determination result as to whether or not the QR code (NURI) is forged or falsified from the detection device 200.

In addition, the feedback data FD may include product history information as well as a result of determining whether the QR code NURI is falsified or not. Accordingly, the detection device 200 may also store the product history information on the product 100 to be authenticated It is possible to provide it to the user.

In conclusion, the QR code forgery-and-detection system according to the embodiment of the present invention generates QR codes by organically mixing product history information and product activation information, and judges whether the user has forged or not by using the generated QR code, By purchasing genuine products at a fixed price, we can create a consumer culture environment that allows us to use high-quality products properly.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Therefore, it is to be understood that the embodiments disclosed herein are not for purposes of limiting the technical idea of the present invention, but rather are not intended to limit the scope of the technical idea of the present invention. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: Products to be certified
200: Detector
300: Server device

Claims (13)

A detecting device for detecting the QR code of the product to be authenticated to which the product history information and the product activation information are attached in an organically mixed QR code according to a predetermined pattern; And
And a server device for extracting the product history information by applying the activation information and the predetermined pattern to the QR code detected from the detection device and comparing the extracted product history information with previously stored comparison history information to determine whether the QR code is forged or not doing
QR code forgery detection system.
The method according to claim 1,
The detection device includes:
A photographing unit for photographing the QR code;
A detecting unit for detecting an area corresponding to the QR code among the image data transmitted through the photographing unit; And
And a communication unit for transmitting the QR data detected by the detection unit
QR code forgery detection system.
3. The method of claim 2,
Further comprising a notifying device for providing a user with a forgery or falsification of a QR code fed back from the server device
QR code forgery detection system.
3. The method of claim 2,
A display for displaying a photographing area photographed by the photographing unit; And
And a speaker for guiding the photographing direction of the detecting device in accordance with the position of the QR code photographed on the display
QR code forgery detection system.
The method according to claim 1,
The server apparatus comprising:
An extracting unit for extracting the product history information by converting the QR code detected from the detecting device according to the activation information and the predetermined pattern;
A storage unit for storing the comparison history information and the product authentication information; And
And a comparing unit for comparing the product history information provided by the extracting unit with the comparison history information
QR code forgery detection system.
The method according to claim 1,
The activation information is generated by applying an encryption algorithm to the production time information and the random number information of the product to be authenticated
QR code forgery detection system.
Generating a QR code organically mixed according to a predetermined pattern of the product history information and the activation information; And
Extracting the product history information by applying the activation information and the predetermined pattern to the QR code and comparing the product history information with previously stored comparison history information to determine whether the QR code is forged or not
How to operate the QR code forgery detection system.
8. The method of claim 7,
The step of generating the QR code comprises:
Applying a specific time value corresponding to a production time point of the product to be authenticated to a first cryptographic function and then exclusively performing a logical sum operation with a random number to generate the product activation information;
Generating an information value by applying a second encryption function to the product history information on the authentication target product;
Combining the information value with the activation information and then encrypting the information value using the secret key value to generate encrypted data;
Generating QR source data by combining the product unique identifier of the product to be authenticated, the specific time value, the encrypted data, and the product history information; And
And producing the QR code using the QR source data
How to operate the QR code forgery detection system.
9. The method of claim 8,
Storing the product history information, the random number, and the specific time value in a server for determining whether the QR code is falsified or not
How to operate the QR code forgery detection system.
8. The method of claim 7,
Detecting the QR code attached to the product to be authenticated through a detection device;
Transmitting the detected QR code to a server apparatus; And
And feedback to the detection device whether the QR code is forged or not
How to operate the QR code forgery detection system.
11. The method of claim 10,
Wherein the detecting comprises:
Guiding the photographing direction according to the position of the QR code displayed on the display; And
And a step of recognizing and detecting the QR code by adjusting the photographing direction according to the guiding step
How to operate the QR code forgery detection system.
8. The method of claim 7,
Wherein the step of determining whether the QR code is forged or not comprises:
Generating QR sod data including a unique identifier corresponding to the QR code, a specific time value, encrypted data, and product history information;
A first comparing step of parsing and extracting a random number by referring to the QR source data, and comparing the random number with a previously stored random number;
Applying a first encryption function to a previously stored specific time value, and then exclusive-ORing the random number with the random number to generate activation information;
Decrypting the encrypted data S 'using a public key value to generate decrypted data D';
Extracting and storing a value corresponding to the product history information by exclusive-ORing the product data with the decrypted data; And
And a second comparison step of applying a second encryption function to the previously stored product history information and comparing the second encryption function with the stored value in the storing step
How to operate the QR code forgery detection system.
13. The method of claim 12,
Determining whether the QR code is forged or not according to a result of the first or second comparison step
How to operate the QR code forgery detection system.

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