WO2020199394A1 - Code anti-contrefaçon et procédé de construction associé - Google Patents

Code anti-contrefaçon et procédé de construction associé Download PDF

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Publication number
WO2020199394A1
WO2020199394A1 PCT/CN2019/093586 CN2019093586W WO2020199394A1 WO 2020199394 A1 WO2020199394 A1 WO 2020199394A1 CN 2019093586 W CN2019093586 W CN 2019093586W WO 2020199394 A1 WO2020199394 A1 WO 2020199394A1
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WO
WIPO (PCT)
Prior art keywords
area
identification
counterfeiting
information
code
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Application number
PCT/CN2019/093586
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English (en)
Chinese (zh)
Inventor
陈成楷
陈庆伟
缪小微
黄伟忠
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广州市宝绅科技应用有限公司
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Application filed by 广州市宝绅科技应用有限公司 filed Critical 广州市宝绅科技应用有限公司
Publication of WO2020199394A1 publication Critical patent/WO2020199394A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding

Definitions

  • the invention relates to the technical field of anti-counterfeiting codes, in particular to an anti-counterfeiting code and a construction method thereof.
  • the inventor conceived to set the anti-counterfeiting area and the identification area of the anti-counterfeiting code into a special spatial structure, so that when decoding, it passes through the identification area and then passes through the anti-counterfeiting area to form a second line of defense, which effectively protects the information. Security, not easy to crack.
  • a method for constructing an anti-counterfeiting code includes an identification area and an anti-counterfeiting area.
  • the method for creating the anti-counterfeiting code includes the following steps: constructing the spatial structure of the identification area and the anti-counterfeiting area; The location corresponding to the spatial structure of the anti-counterfeiting area generates information for identification and anti-counterfeiting.
  • the identification and anti-counterfeiting information can be distinguished by generating information for identification and anti-counterfeiting at the positions corresponding to the spatial structure of the recognition area and anti-counterfeiting area, and different from the anti-counterfeiting codes on the market, the two areas make forgery more difficult , Which effectively guarantees the security of information.
  • generating information for identification at a location corresponding to the spatial structure of the identification area is implemented as: dividing the spatial structure of the identification area into non-overlapping identification blocks, and filling in the identifier at the position corresponding to each identification block to form a binary Data; slicing binary data to generate information for identification.
  • the above-mentioned binary data is used to write information, and by dividing the binary data into pieces, different information is contained in each piece, which is beneficial to increase the safety factor of the anti-counterfeiting code. .
  • the information used for identification includes first identification information
  • the first identification information includes an encoding method, an encoding version, positioning information, and color information of the anti-counterfeiting area.
  • the encoding method and version of the anti-counterfeiting area can be set to adapt to a specific decoding method for decoding, thereby providing the security of the anti-counterfeiting code.
  • the spatial structure of the identification area and the anti-counterfeiting area includes: arranging a part of the anti-counterfeiting area inside the identification area, and the other part is arranged around the identification area; or
  • the anti-counterfeiting area is arranged around the identification area; or the anti-counterfeiting area is arranged inside the identification area.
  • the information used for identification further includes second identification information, the second identification information includes an information error correction code and an information verification code; the identification area includes a candidate identification area and a valid identification area, and the candidate identification area includes the first One identification information, the effective identification area includes first identification information and second identification information.
  • the difficulty of identifying the anti-counterfeiting code can be provided through the second identification information and the effective identification area including the second identification information, so that the information carried by the anti-counterfeiting code can undergo secondary verification and error correction protection.
  • an anti-counterfeiting code which includes: an identification area for placing identification information; an anti-counterfeiting area for placing anti-counterfeiting information; the identification area and the anti-counterfeiting area are arranged according to a preset spatial structure,
  • the identification information includes first identification information for identifying anti-counterfeiting information.
  • the identification area and the anti-counterfeiting area are arranged according to a preset spatial structure: a part of the anti-counterfeiting area is arranged inside the identification area, and the other part is arranged around the identification area.
  • the anti-counterfeiting area can be made larger, that is, it can contain more information for identification and anti-counterfeiting.
  • the above-mentioned anti-counterfeiting code, the identification area and the anti-counterfeiting area are arranged according to a preset spatial structure, and the anti-counterfeiting area is arranged around the identification area. This arrangement can contain more information than the existing spatial arrangement of anti-counterfeiting code areas.
  • the arrangement of the identification area and the anti-counterfeiting area according to a preset spatial structure is implemented as: the anti-counterfeiting area is arranged inside the identification area. This method can make the recognition area contain a certain amount of information.
  • the identification information further includes second identification information for distinguishing the identification area.
  • the second identification information includes an information error correction code and an information verification code.
  • the identification area includes a candidate identification area and an effective identification area; the candidate identification area The first identification information is included; the effective identification area includes the first identification information and the second identification information.
  • the difficulty of identifying the anti-counterfeiting code can be provided through the second identification information and the effective identification area including the second identification information, so that the information carried by the anti-counterfeiting code can undergo secondary verification and error correction protection.
  • FIG. 1 is a flowchart of a method for constructing an anti-counterfeiting code according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the structure of an anti-counterfeiting code according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of the structure of an anti-counterfeiting code according to another embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the structure of an anti-counterfeiting code according to another embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the structure of an anti-counterfeiting area according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of the structure of an anti-counterfeiting area according to another embodiment of the present invention.
  • Fig. 7 is a schematic structural diagram of an anti-counterfeiting area according to another embodiment of the present invention.
  • Fig. 1 schematically shows a flow chart of a method for constructing an anti-counterfeiting code according to an embodiment of the present invention, as shown in Fig. 1,
  • Step S101 Constructing the spatial structure of the identification area and the anti-counterfeiting area.
  • the anti-counterfeiting code in this embodiment includes the identification area and the anti-counterfeiting area.
  • a specific area is added to the setting of the identification area and the anti-counterfeiting area.
  • the specific realization of the spatial relationship is as follows: one part of the anti-counterfeiting area is set inside the identification area, and the other part is set around the identification area, that is, the anti-counterfeiting area is divided into five areas, and the identification area is regarded as a single whole.
  • An anti-counterfeiting area is set inside, and an anti-counterfeiting area is set around the identification area, which can contain a lot of information.
  • the anti-counterfeiting area is also arranged around the identification area, that is, the identification area is taken as a single whole, and the anti-counterfeiting area is divided into four parts, which are respectively arranged around the identification area.
  • the anti-counterfeiting area is set inside the identification area.
  • the anti-counterfeiting area can be implemented as a QT code as shown in FIG. 5.
  • the anti-counterfeiting area can also be implemented as a barcode as shown in FIG. 6.
  • the anti-counterfeiting area can also be implemented as a matrix two-dimensional code as shown in FIG. 7.
  • Step S102 generating information for identification and anti-counterfeiting at positions corresponding to the spatial structure of the identification area and the anti-counterfeiting area.
  • the specific implementation is as follows: firstly, the spatial structure of the identification area is divided into non-overlapping identification blocks, and identifiers are filled in corresponding positions of each identification block to form binary data; the binary data is sliced to generate information for identification. Exemplarily, each identification block is used to represent 1 bit of information. If the identifier filled in the identification block is black, it means 1, and when it is white, it means 0, and these identification blocks form binary data of a certain length. Afterwards, the binary data is fragmented (the specific implementation method can refer to the prior art implementation), which can be used to express a large amount of information.
  • the information used for identification includes first identification information, and the first identification information includes an encoding method, an encoding version, positioning information, and color information of the anti-counterfeiting area, and is used to identify relevant features of the anti-counterfeiting area so as to locate and obtain the anti-counterfeiting information.
  • the first 4 bits of the binary data are used to indicate the encoding method of the anti-counterfeiting code
  • the 5th to 8th bits are used to indicate the encoding version of the anti-counterfeiting area.
  • the anti-counterfeiting area coding method and the anti-counterfeiting area coded version are used to assist the terminal or server that authenticates the anti-counterfeiting code to decode its anti-counterfeiting area information.
  • the positioning information is used to describe the relative position of the anti-counterfeiting area and the identification area, and the size of the anti-counterfeiting area (the number of pixels in the width and height of the anti-counterfeiting area).
  • Color information is used to describe the color system used in the anti-counterfeiting area, such as Black-White, YUV, RGB, HSV, etc.
  • the specific spatial relationship between the anti-counterfeiting area and the identification area is also reflected in the mapping relationship between the anti-counterfeiting area and the identification area through the positioning information.
  • the image of the anti-counterfeiting area corresponding to the identification area can be obtained through the color information in the identification information.
  • Information that is, encrypted anti-counterfeiting information, effectively improves the security of the anti-counterfeiting code.
  • the acquired image data is only about 600 bytes, plus a small amount of color information data and frame data, which does not exceed 1 kB in total.
  • the occupied network bandwidth is extremely low, which can effectively improve the recognition speed.
  • the information used for identification further includes second identification information
  • the second identification information includes an information error correction code and an information verification code for identifying and distinguishing the identification area.
  • the identification area is classified as including Candidate identification area and effective identification area.
  • the candidate identification area is configured to include the first identification information
  • the effective identification area is configured to include the first identification information and the second identification information.
  • the process of determining the effective identification area through the candidate identification area is specifically realized as: searching for the candidate identification area information to determine, if the identification information of the candidate identification area can perform information code error correction by itself, and also pass its own information check code verification, Then the candidate identification area is used as the effective identification area, that is, the first identification information can be corrected and verified by the detected second identification information, which means that the area includes both the second identification information and the first identification information. That is to determine the area as a valid recognition area.
  • the identification of the candidate area can be achieved by setting the structure of the candidate area and performing scanning judgment on the structure.
  • the candidate area is implemented as including four candidate positioning points forming an approximate matrix.
  • the candidate anchor point is: if there are at most m other black points in a circle with a black point as the center and radius n, then the black point is a candidate anchor point, and the size of n is determined by the radius r of the black point ,
  • An exemplary n 3 ⁇ r, the value range of m can be diversified, usually 1 or 0.
  • the candidate candidate area is implemented as including three candidate positioning points forming an approximate right triangle, and the fourth point can be calculated through the three positioning points.
  • the calculation method can be implemented with reference to the prior art (exemplary). In QR Code, 3 " ⁇ " fonts are used as anchor points, and the position of the fourth point is calculated through these 3 " ⁇ " fonts).
  • the candidate area can be identified through the candidate positioning point, and the candidate area has no obvious recognition pattern.
  • QR Code has an obvious "back" character pattern
  • Maxi Code has an obvious bull's eye pattern
  • DataMatrix has an obvious pattern. The two straight lines make the security of anti-counterfeiting higher.
  • the volume of the anti-counterfeiting code is very small in actual implementation, with a minimum of 68 ⁇ 68 pixels. If a 1200 DPI printer is used, it is less than 1.5 ⁇ 1.5 (mm 2 ). Can effectively prevent forgery.
  • FIG. 2 is a schematic diagram of the structure of an anti-counterfeiting code according to an embodiment of the present invention. As shown in FIG. 2, the anti-counterfeiting code includes an identification area 1 and an anti-counterfeiting area 2.
  • the identification area 1 is used to place identification information.
  • the anti-counterfeiting area 2 is used to place anti-counterfeiting information.
  • the identification area 1 and the anti-counterfeiting area 2 are arranged according to a preset spatial structure, that is, the anti-counterfeiting area 2 is set in the interior 1 of the identification area.
  • the spatial structure can also be implemented as setting a part of the anti-counterfeiting area 2 in the identification area 2. Inside, the other part is set around the identification area 1.
  • the space structure can also be implemented as setting the anti-counterfeiting area 2 around the identification area 1.
  • the identification information includes the first identification information used to identify the anti-counterfeiting information, including the coding mode, code version, positioning information and color information of the anti-counterfeiting area.
  • the identification information also includes second identification information for distinguishing the identification area.
  • the second identification information includes an information error correction code and an information verification code.
  • the identification area includes a candidate identification area and a valid identification area.
  • the candidate identification area includes the first identification information.
  • the effective identification area includes the first identification information and the second identification information.
  • the anti-counterfeiting code improved according to this embodiment can realize the separation of identification information and anti-counterfeiting information through the specific spatial relationship between the identification area and the anti-counterfeiting area, and the identification information and anti-counterfeiting information contained therein, and overcome terminal program cracking or decoding (encoding) program
  • the problem of source code leakage effectively guarantees information security.
  • it can also realize the personalized processing of identification information and anti-counterfeiting information, avoiding some information upgrade problems caused by the integration of identification information and anti-counterfeiting information.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Storage Device Security (AREA)

Abstract

La présente invention concerne un procédé de construction d'un code anti-contrefaçon. Le code anti-contrefaçon comprend une région de reconnaissance et une région anti-contrefaçon, et son procédé de création est mis en œuvre comme comprenant les étapes suivantes consistant à : construire des structures spatiales d'une région de reconnaissance et d'une région anti-contrefaçon ; et générer, à des positions correspondant respectivement aux structures spatiales de la région de reconnaissance et de la région anti-contrefaçon, des informations pour la reconnaissance et l'anti-contrefaçon. La présente invention concerne également un code anti-contrefaçon. Le code anti-contrefaçon et le procédé de construction associé décrits dans la présente invention peuvent résoudre le problème selon lequel un programme de terminal est craqué ou un code source d'un programme de décodage (codage) fuit, garantissant ainsi une sécurité d'informations.
PCT/CN2019/093586 2019-04-04 2019-06-28 Code anti-contrefaçon et procédé de construction associé WO2020199394A1 (fr)

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CN201910272266.4 2019-04-04
CN201910272266.4A CN109978115B (zh) 2019-04-04 2019-04-04 一种防伪码及其构建方法

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CN111382820B (zh) * 2020-02-25 2021-10-12 南通大学 一种四宫格纯色商品防伪码生成方法

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CN108470201A (zh) * 2018-01-24 2018-08-31 重庆延伸科技开发有限公司 一种随机彩色点阵标签防伪系统
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US20070218981A1 (en) * 2004-04-16 2007-09-20 Cyberview Technology, Inc. Casino no-ticket in cashless methods allowing the redemption of large prizes
CN102646363A (zh) * 2012-04-20 2012-08-22 李峰 文字防伪、条码组合标识结构及方法
CN105321076A (zh) * 2014-06-03 2016-02-10 江南大学 一种流通商品的可变长效防伪标识方法及系统
CN108122020A (zh) * 2017-12-08 2018-06-05 北京小米移动软件有限公司 二维码生成方法及装置以及二维码识别方法及装置
CN109978574A (zh) * 2019-04-04 2019-07-05 广州市宝绅科技应用有限公司 一种防伪系统及防伪方法

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