JP6575213B2 - Information printed matter, reading method and authentication method - Google Patents

Description

  The present invention relates to a personal authentication medium such as an ID, a certificate-related authentication medium, a medium requiring authentication such as a lottery ticket or tickets, and an authentication method thereof.

  In the area of personal authentication media such as IDs and certificate-related authentication media, authentication technologies with built-in IC chips are widespread, and in the media field requiring authentication such as lottery tickets and tickets, Authentication means based on management techniques are mainly used. However, with the aim of more simple and low-cost authentication, attempts to perform authentication by providing a two-dimensional code represented by a so-called bar code or QR code (registered trademark) on the medium have been conventionally performed. It is being considered.

  For example, as can be seen in Patent Document 1 and Patent Document 2, also in the field of ID cards and the like, image data of a facial image, fingerprint data, etc. are compressed and two-dimensionally encoded and provided on a card together with a facial photographic image Conventionally, methods such as these have been studied.

  On the other hand, with the generalization of information provision via the Internet, companies provide information such as their own product information and related information to consumers through Web pages. At this time, there is also a patent for a method of easily leading a consumer to the Web page by writing the URL of the Web page on the catalog or on the product itself using a QR code (registered trademark) and reading it. It is proposed in Document 3 and Patent Document 4.

In these methods, the widespread use of camera-equipped mobile terminals is also a major driver.
That is, by introducing the two-dimensional code reading software into the mobile terminal, it is possible to easily connect to the Internet by the communication function of the mobile terminal, and it is easy to access and browse Web information. .

  However, when the two-dimensional code is to be used as an information medium for authentication, the two-dimensional code itself has no security and can be easily duplicated by a camera or a copying machine. For this reason, the utilization method of the two-dimensional code has been limited.

JP-A-8-129634 Japanese Patent Laid-Open No. 11-272816 JP 2000-293455 A JP 2005-63151 A

  The present invention maintains a simple information exchange characteristic of a two-dimensional code and its reading technology, and attempts to perform authentication illegally by unauthorized copying by a camera or a copying machine, or obtains personal information illegally. It is intended to prevent trying.

The present invention has been made to solve these problems.
That is, according to the first aspect of the present invention, in the information printed matter in which the code information is provided on the base material, the additional information composed of the hard ink layer is hidden in a part of the print area where the first code information is formed. The hard ink layer is formed as an image image, and the hard ink layer includes a material having a hardness higher than that of a metal object, and is visualized by rubbing the metal object. The information printed matter is characterized in that the second code information is displayed together with the additional information.

  Next, the invention according to claim 2 is the information printed matter according to claim 1, wherein the hard ink layer has the same color as the hue of the substrate.

  According to a third aspect of the present invention, in the code information reading method using the information printed matter according to the first or second aspect, the step of reading the first code information by a reading device and rubbing using a metal object Code information, comprising: a step of visualizing the hard ink layer, and a step of reading second code information including additional information made of the hard ink layer visualized by a reading device. This is a reading method.

  A fourth aspect of the present invention is an authentication method using the information printed matter according to the first or second aspect, wherein the first code information is read by a reading device and is rubbed using a metal object. A step of visualizing the hard ink layer, and a step of reading second code information including additional information made of the hard ink layer visualized by a reading device. In this authentication method, authentication is performed using the second code information including the information and the visualized additional information.

  According to the present invention, in the authentication method using the two-dimensional code, even if the code information is photographed by a camera or the like, or the code information is illegally copied by a copy machine or the like, Information printed matter that cannot be illegally used can be provided.

It is a top view which shows roughly the information printed matter concerning one aspect | mode of this invention. (A) It is an example of the information printed matter which has a 1st information code. (B) It is an example of the information printed matter which visualized the 2nd additional information. It is sectional drawing which shows roughly the structure of the information printed matter concerning one aspect | mode of this invention. It is a conceptual diagram which shows the operation example concerning 1 aspect of this invention. It is a flowchart which shows an example of the authentication method of this invention. It is a flowchart which shows an example of the authentication method of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each figure, the same reference numerals are assigned to calibration elements that exhibit the same or similar functions, and duplicate descriptions are omitted.

  FIG. 1 is a plan view schematically showing a printed information product according to an aspect of the present invention. Here, (A) shows an example of the information printed matter 100 having the first code information 102. As a code format, a two-dimensional code represented by QR code (registered trademark) is used. Can do. This is because the data density of the two-dimensional code is significantly higher than that of the one-dimensional barcode, and the degree of freedom of information to be handled increases depending on the application.

  The two-dimensional code can be used in addition to the QR code (registered trademark). For example, an SP code, Veri code, Maxi code, CP code, DataMatrix, Code1, AztecCode, and interactor code can be used as a matrix code. Various codes such as PDF417, Code49, Code16K, Codablock, SuperCode, Ultra Code, RSS Composite, AztecMeta, etc. (the above code names include registered trademarks) are conceivable as stack-type codes, but are widely recognized. It can be said that the QR code (registered trademark) is suitable.

  The first code information 102 can be read as the code information itself, and the additional information 103 is formed as a latent image using hard ink in a part of the code printing area of the first code information 102. Provide.

  That is, when reading the first code information 102, the additional information 103 cannot be visually observed and cannot be detected by the reading device.

  After the first code information is read by a reading device, the metal is scraped off by the hard ink printing portion by rubbing the surface of the information printed matter 100 with a metal, and the hard ink printing portion is colored by the scraped metal. As a result, the image is visualized as shown in FIG. 1B, and visual observation and observation with a reading device are possible. As a result, the first code information 102 and the visualized additional information 103 are combined, and information can be read by the reading device as new second code information 104.

  The metal object may be provided with a dedicated metal piece, but generally a coin can be used. Coins are made of aluminum, brass (copper, zinc), bronze (copper, zinc, tin), white copper (copper, nickel), nickel brass (copper, zinc, nickel), etc. The Mohs hardness of hard nickel is approximately 5.

  Here, FIG. 2 is a cross-sectional view schematically showing a configuration of an information printed matter according to one embodiment of the present invention. As the base material 101, in addition to paper, polycarbonate (PC), polyethylene terephthalate (PET). ), Polyethylene naphthalate (PEN), vinyl chloride resin, acrylic resin, and other plastic films or sheets, synthetic paper, and the like can be arbitrarily selected according to the application. The surface of these base materials may be subjected to various surface treatments such as antistatic treatment, anti-wear treatment, and easy adhesion treatment. Further, the information printed matter can be provided with an arbitrary image within a range that does not affect the reading of the code information, or a colored layer can be provided on the substrate.

  The first code information 102 uses various ink printing methods such as offset printing, gravure printing, flexographic printing, silk screen printing, and ink jet methods using black ink, yellow, magenta, cyan inks, and mixed inks thereof. It can be provided by a known method such as a transfer method. Further, the first code information 102 may be color-adjusted to a similar hue assuming a color when the additional information 103 is visualized by rubbing with a metal object such as money. .

  The portion of the additional information 103 consists of a printed layer using the hard ink, and when the surface is rubbed with a metal object, the metal is scraped off, and is colored by the scraped metal and visualized. The hard ink needs to use a material having a higher hardness than the metal object. Examples of such materials include the following. Here, the values in () indicate typical values of Mohs hardness. Examples of ink compositions used for hard inks include titanium oxide (6-7), aluminum oxide (9), silicon dioxide (7), zirconium oxide (7), and chromium oxide (9). These are materials having higher hardness than metals used for coins and the like, and these can be used alone or as a mixture of two or more.

The hard ink is toned in accordance with the hue on the base material 101 side of the information printed matter 100 by various color materials and the like, whereby the additional information 103 at the stage before rubbing with a metal object is performed. Is difficult to recognize visually and by observation with a reader.

  The color difference between the hue of the substrate and the hard ink is preferably ΔE of 0.5 or less, more preferably ΔE of 0.3 or less. Note that the color difference ΔE can be measured with a color difference meter.

  In addition, the hard ink is combined with various binders, and offset printing, UV offset printing, flexographic printing, gravure printing, silk screen printing, and these printing methods are combined with radiation irradiation devices such as ultraviolet rays and electron beams. It can be provided on the substrate by various methods such as a printing method or an inkjet method.

  FIG. 3 is a conceptual diagram illustrating an operation example according to one embodiment of the present invention. That is, the case where the portable terminal 200 is used as a reading device is shown, and the two-dimensional code provided on the information printed matter 100 of the present invention is read by the portable terminal and the server is accessed through the Internet. Yes. Here, the two-dimensional code reading on the information printed matter 100 by the portable terminal 200 first reads the first code information 102, performs some processing or service based on the read information, and further covers the surface of the information printed matter 100. After the additional information 103 is visualized by rubbing with a metal object such as a coin, the second code information 104 obtained by combining the first code information 102 and the additional information 103 is read. In addition to some new processing or service based on the code information 104 or based on the first code information, additional processing or service can be performed.

  Further, a new authentication method can be implemented by combining the first code information and the second code information. That is, first, the step of reading the first code information 102 by the portable terminal 200, and after reading the first code information 102, the surface of the information printed matter 100 is rubbed with a metal object such as a coin, and the additional information 103 And the step of reading the second code information 104, which is a combination of the first code information 102 and the additional information 103, and by reading these two pieces of code information, Since authentication is possible for the first time, even if only the first code information 102 or only the second code information 104 is copied by a camera or a copying machine, the copy information alone is illegal. You will not be able to get authentication.

  Here, the reading device only needs to include a code reading unit that reads code information by a camera, a light receiving unit, and the like, and an output unit that outputs an authenticated result by screen display or sound or light. And a mobile terminal such as a smartphone, a mobile terminal or a fixed terminal having the above-described functions. These reading devices may be connected / linked to a POS system or the like.

  As for the authentication after reading the code information, a communication unit is provided in the reading device as shown in FIG. 3, the code information is recorded in an external server provided with the authentication unit, and collated with the read code information. Although authentication may be performed, an authentication unit and a code information recording unit may be provided in the reading device itself, and the read code information may be authenticated in the reading device.

  Here, an example of an authentication procedure using the first code information 102 and the second code information 104 is shown in FIGS. 4 and 5.

In the authentication procedure shown in FIG. 4, the first code information 102 provided on the information printed matter 100 is read by a reading device and collated with code information recorded in advance by an authentication unit. If the authentication is successful, the process proceeds to the authentication operation of the second code information 104. That is, after rubbing the surface of the information printed material with a metal object such as a coin to visualize the additional information, the second code information 104 including the first code information and the visualized additional information 103 is obtained. Read and perform the final verification.

  In this case, if a problem occurs during the verification of the first code information 102, an error can be generated during the verification procedure of the first code information 102.

  In addition, as shown in FIG. 5, the first code information 102 provided on the information printed matter is read by a reading device, and then the surface of the information printed matter 100 is rubbed with a metal object such as a coin. After the additional information 103 is visualized, the second code information 104 including the first code information 102 and the visualized additional information 103 is read. Thereafter, collation means for collating the first code information and the second code information may be used.

DESCRIPTION OF SYMBOLS 100 ... Printed information 101 ... Base material 102 ... 1st code information 103 ... Additional information 104 ... 2nd code information 200 ... Mobile terminal 300 ... Internet 400 ... Server

Claims (4)

In an information printed matter in which code information is provided on a base material, additional information comprising a hard ink layer is formed as a latent image on a part of a print area for forming first code information, and the hard ink The layer includes a material having a hardness higher than that of the metal object, and is visualized by rubbing the metal object, thereby combining the first code information and the visualized additional information, Information printed matter characterized by displaying code information.   The information printed matter according to claim 1, wherein the hard ink layer has the same color as the hue of the base material.   3. The code information reading method using the information printed matter according to claim 1 or 2, wherein the first code information is read by a reading device, and the hard ink layer is visualized by rubbing with a metal object. And a step of reading second code information including additional information made of the hard ink layer visualized by a reading device.   3. An authentication method using the printed information product according to claim 1, wherein the first code information is read by a reading device, and the hard ink layer is visualized by rubbing with a metal material. And the step of reading the second code information including the additional information composed of the hard ink layer visualized by the reading device, the first code information and the visualized additional information An authentication method for authenticating using second code information including