CN102855510B - Anti-fake product and recognition methods thereof - Google Patents

Abstract

The invention discloses an anti-counterfeit product and an identification method thereof, wherein the anti-counterfeit product includes a carrier, the carrier is provided with a characteristic number uniquely identifying the anti-counterfeit product, the carrier is also provided with a characteristic substance code, and the characteristic The substance code is obtained by encoding the encrypted data information according to the preset coding method by the characteristic substance or making a radio frequency identification RFID tag on the encrypted data information. The encrypted data information is obtained by using a preset encryption algorithm to make up all or Part of the information is encrypted. The embodiment of the present invention can improve the security and anti-counterfeiting ability of the anti-counterfeiting product and the machine's ability to recognize the characteristic number, and can accurately read and identify the characteristic number on the valuable document.

Description

Anti-counterfeit product and identification method thereof

technical field

The invention relates to anti-counterfeiting technology, in particular to an anti-counterfeiting product and its identification method.

Background technique

At present, the informatization demand for security anti-counterfeiting and traceability management of valuable documents is becoming stronger and stronger. From the perspective of security and anti-counterfeiting, on the one hand, with the popularization of high technology, especially equipment and software systems such as color printers, color copiers, and computer typesetting and color matching systems are easily obtained by criminals, resulting in counterfeiting or counterfeiting of valuable notes and bank notes. It is becoming easier and more realistic to wait for paper-based or plastic-based valuable documents; on the other hand, with the wide spread of technical information through the Internet, information and other media, people can more conveniently Communicate and communicate so that various levels of anti-counterfeiting technologies become known over time at an accelerated pace. The limitations, challenges and difficulties of traditional anti-counterfeiting technologies, including physical and chemical anti-counterfeiting technologies, are also increasing. Therefore, researchers began to set their sights on information-based anti-counterfeiting technology and the combination of information-based anti-counterfeiting and traditional anti-counterfeiting technology. From the perspective of retrospective management, the rapid development of information technology in recent decades has brought about earth-shaking changes to people's lives and social and economic development, and information technology has gradually penetrated into every corner of society. Entering the 21st century, the informatization of people's social life is getting higher and higher, and the vigorous development of the Internet and the Internet of Things has also created a strong demand for informatization of valuable documents.

In order to realize the informatization of valuable documents, an important step is to carry out personalized identification on the valuable documents. At present, valuable documents can be personalized in the following ways: One way is to actively give personalized features to valuable documents, for example, printing numbers, digital watermarks, etc. The difference between a document and other similar valuable documents; another way is to passively extract the existing personalized features of the valuable document, for example, when making a valuable document, the distribution of fibers, the distribution of paper density, and the distribution of paper thickness , the difference in watermark images, and the random distribution of printing characteristics, etc., are all personalized features of valuable documents to distinguish valuable documents. It is easier for the machine recognition system to identify the personalized features that are actively given, such as printed numbers; it is relatively difficult for the machine recognition system to identify the random personalized features that are passively extracted.

In order to accurately identify the personalized feature number actively assigned to the valuable document, it is possible to judge whether the valuable document number has been successfully read by adding a check code mechanism in the feature number, thereby improving the anti-counterfeiting ability of the valuable document and the machine recognition accuracy. Wherein, the way of adding the check code may include a weighted way and a non-weighted way. For a large number of valuable documents printed, it is difficult to meet the needs of printing speed by adding a check code in a weighted manner. Therefore, it tends to add the check code in a non-weighted manner at present.

Our country has a vast territory, and the circulation environment of valuable documents is very complicated. In the process of realizing the present invention, the inventor found that the method of using the verification code mechanism in the prior art to improve the anti-counterfeiting ability of valuable documents and the accuracy of machine recognition has at least the following problems:

Due to long-term use, the personalized characteristic number on the valuable document will be wrinkled and dirty, which will seriously affect the accurate reading of the characteristic number by the machine identification system. Only using the check code method may lead to a large number of characteristic numbers of valuable documents. It cannot be read and identified accurately. These valuable documents that cannot accurately identify the personalized characteristic number may be relatively new and fully suitable for further circulation and use. If the valuable document is no longer in circulation just because the personalized number of the valuable document cannot be read, so that the valuable document withdraws from the circulation environment prematurely, unnecessary losses will be caused.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide an anti-counterfeiting product and its identification method, so as to improve the security and anti-counterfeiting ability of the anti-counterfeiting product and the ability of the machine to recognize the characteristic number, and accurately read and identify the characteristic number on the valuable document.

An anti-counterfeit product provided by an embodiment of the present invention includes a carrier, the carrier is provided with a characteristic number that uniquely identifies the anti-counterfeit product, and the carrier is also provided with a characteristic substance code, and the characteristic substance code is passed according to the characteristic substance. The encrypted data information is encoded by a preset encoding method or the encrypted data information is obtained by making a radio frequency identification RFID tag, and the encrypted data information is obtained by encrypting all or part of the information constituting the feature number with a preset encryption algorithm.

A method for identifying an anti-counterfeit product provided by an embodiment of the present invention includes:

The identification device reads the characteristic number and characteristic substance code of the anti-counterfeit product;

The identification device decodes the characteristic substance code according to a preset decoding method to obtain decoded data;

The identification device uses a preset decryption algorithm to decrypt the decoded data to obtain decrypted data information;

The identification device verifies whether the decrypted data information is consistent with the feature number, and outputs a verification result.

Based on the anti-counterfeit product and its identification method provided by the above-mentioned embodiments of the present invention, in addition to setting the characteristic number that uniquely identifies the anti-counterfeit product on the carrier of the anti-counterfeit product, the carrier is also provided with a characteristic substance code. The encoding method is to encode the encrypted data information or to make an RFID tag on the encrypted data information, wherein the encrypted data information is obtained by encrypting all or part of the information constituting the feature number by using a preset encryption algorithm. After the characteristic substance code corresponding to the characteristic number is set on the anti-counterfeiting product, the characteristic number can be identified with the help of the characteristic substance code, thereby improving the ability of the machine to recognize the characteristic number, and accurately reading and identifying the characteristic number on the valuable document. Compared with existing technologies, it avoids that the characteristic number cannot be accurately read and recognized by the optical character recognition system due to contamination or wrinkles; and, since the characteristic number is encrypted and coded to obtain the characteristic substance code, the characteristic substance code and characteristic can be verified. Whether the number is consistent to confirm whether the feature number is valid, so as to effectively identify the authenticity of the product and improve the security and anti-counterfeiting ability of the anti-counterfeiting product.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the structural representation of an embodiment of anti-counterfeit product of the present invention;

Fig. 2 is the flow chart of an embodiment of the identification method of anti-counterfeit product of the present invention;

Fig. 3 is a flow chart of another embodiment of the method for identifying anti-counterfeit products of the present invention;

Fig. 4 is a structural schematic diagram of an anti-counterfeiting product as an application embodiment of the present invention;

Fig. 5 is a structural schematic diagram of an anti-counterfeit product as another application embodiment of the present invention;

Fig. 6 is a structural schematic diagram of an anti-counterfeit product as yet another application embodiment of the present invention;

Fig. 7 is a luminescent spectrum diagram of the characteristic substance in the embodiment shown in Fig. 6 .

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Fig. 1 is a structural schematic diagram of an embodiment of the anti-counterfeiting product of the present invention. The anti-counterfeiting product in each embodiment of the present invention can be any product, for example, valuable documents, valuable items, etc., for example, bank bills, securities, certificates, magnetic cards, or security securities for preventing counterfeiting. As shown in FIG. 1 , the anti-counterfeiting product of this embodiment includes a carrier 11 , such as: securities, bills, certificates, commodity marks, commodity packaging, certification documents and anti-counterfeiting cards. The carrier 11 is provided with a characteristic number 12 uniquely identifying the anti-counterfeit product and a characteristic substance code 13 . Wherein, the characteristic substance code 13 is obtained by encoding the encrypted data information with the characteristic substance according to a preset coding method or making a radio frequency identification (Radio Frequency Identification, hereinafter referred to as: RFID) tag for the encrypted data information. The encrypted data information is obtained by encrypting all or part of the information constituting the feature number 11 with a preset encryption algorithm.

The preset encryption algorithm may specifically be a symmetric encryption algorithm or an asymmetric encryption algorithm. Symmetric encryption means that the encryption and decryption keys are the same, including the mapping relationship between the encryption and decryption characteristic symbols realized by the classical code and replacement mechanism. For example, the encrypted characteristic symbol "1" corresponds to the decrypted characteristic symbol "A", It also includes modern public encryption standard algorithms such as Data Encryption Standard (hereinafter referred to as: DES) encryption algorithm, Triple Data Encryption Standard (Triple DES, hereinafter referred to as: 3DES) encryption algorithm, International Data Encryption Algorithm (International Data Encryption Encryption Algorithm, hereinafter referred to as: IDEA), Advanced Encryption Standard (hereinafter referred to as: AES) encryption algorithm and other algorithms, as well as the National Key Administration Record and self-compiled encryption algorithms according to the characteristics of various industries. Asymmetric encryption, where encryption and decryption keys are different, was developed, for example, by Ron Rivest, Adi Shamir, and Leonard Adleman The RSA encryption algorithm that uses large integer prime numbers that are difficult to decompose, the Elliptic Curve Encryption Algorithm (Elliptic curve encryption algorithm, hereinafter referred to as: ECC) and other algorithms that are difficult to solve discrete logarithms on elliptic curves, as well as the State Key Administration for the record and according to various industries Features such as self-compiled encryption algorithms, etc. The above algorithm is difficult to decipher. After encryption using the above algorithm, it will help prevent the characteristic substance code from being decrypted, so that criminals can forge valuable products based on effective characteristic numbers and characteristic substance codes, thereby improving the security and anti-counterfeiting capabilities of anti-counterfeiting products .

The feature number 12 on the anti-counterfeiting product can be recognized by the identification device machine. However, during the long-term circulation of anti-counterfeiting products such as valuable documents, it is easy to cause the surface of the valuable document to be uneven, scratched and smeared with various dirty substances, making the identification device The feature number 12 cannot be read and recognized correctly. The prior art adopts the check code method to judge whether the identification device has correctly identified the feature number 12 to a certain extent, but when the identification device cannot identify correctly, it is impossible to find where the error is, and there may be errors. In the anti-counterfeit product provided by the above embodiments of the present invention, in addition to the characteristic number uniquely identifying the anti-counterfeit product, the carrier is also provided with a characteristic substance code, which encodes the encrypted data information through the characteristic substance according to the preset coding method Alternatively, the encrypted data information is obtained by making an RFID tag, wherein the encrypted data information is obtained by encrypting all or part of the information constituting the feature number with a preset encryption algorithm. After the characteristic substance code corresponding to the characteristic number is set on the anti-counterfeiting product, the characteristic number can be identified by means of the characteristic substance code, thereby improving the ability of the machine to recognize the characteristic number, accurately reading and identifying the characteristic number on the valuable document, and avoiding the The characteristic number cannot be accurately read and recognized by the optical character recognition system due to contamination or wrinkles; and, since the characteristic number is encrypted and encoded to obtain the characteristic substance code, the characteristic number can be confirmed by verifying whether the characteristic substance code is consistent with the characteristic number Whether it is effective, so as to effectively identify the authenticity of the product, identify the authenticity of the anti-counterfeiting product, and improve the security and anti-counterfeiting ability of the anti-counterfeiting product.

As a specific embodiment of the present invention, the carrier 11 may specifically be made of a paper substrate, a plastic substrate, and/or a composite plastic substrate. The feature number 11 may specifically include any one or more of letters, numbers, characters, symbols or other machine-readable feature symbols.

As another specific embodiment of the present invention, the characteristic substance code 13 may specifically be distributed in the printed matter of the carrier 11 or printed on the surface of the printed matter of the carrier 11 in the form of a code.

In addition, as yet another specific embodiment of the present invention, the preset encoding method in the above-mentioned embodiments of the present invention may specifically include spatial encoding of encoding the characteristic substance within a spatial range and/or encoding the intrinsic characteristics of the characteristic substance Encoding of functional properties. Correspondingly, the characteristic substance code 13 may include a one-dimensional barcode, a two-dimensional code, a three-dimensional code and/or an RFID tag.

Wherein, the spatial encoding may specifically include one-dimensional, two-dimensional, and/or three-dimensional encoding manners. Commonly used one-dimensional code codes can include International Article Numbering Association (EAN) code, 39 codes, cross 25 codes, Universal Product Code (hereinafter referred to as: UPC) codes, 128 codes, 93 codes, Codaba (Codabar) yards, etc. Two-dimensional code is also called two-dimensional barcode, which can include Portable Data File (hereinafter referred to as: PDF) 417 code, 49 code (Code49), 16K code (Code 16K), data matrix code (Data Matrix) , Bull's Eye Code (MaxiCode), QR code, etc., are mainly divided into two categories: accumulation, that is, layered type, and checkerboard, that is, matrix type. For example, the PDF417 code, 49 code, and Code 16K code are stacked, that is, layered, and the Data Matrix code, MaxiCode code, and Quick Response (Quick Response, hereinafter referred to as: QR) code is a checkerboard, that is, a matrix. The encoding method of the three-dimensional code is to perform multi-layer printing on the substrate to realize the expansion of the one-dimensional code or/and two-dimensional code in the direction perpendicular to the substrate. In addition, the spatial coding can also be a coding method specially customized for a special industry in addition to the above-mentioned standard coding. Functional property coding refers to the functional coding of the characteristic strength, peak position, half-height width and other characteristics of the characteristic material, for example, the coding of the emission spectrum, the coding of the absorption spectrum, the magnetic coercive force, etc. Coding, magnetic permeability coding, remanence coding, conductivity coding, Raman spectrum coding, reflection spectrum coding with angle, polarization state with rotation angle coding, etc., which can be converted into electrical signal pulses by sensors. Machine-recognizable functional feature codes , the obtained characteristic substance code 13 can be mixed into printing ink or sprayed on substrates such as wet paper. In the embodiment of the present invention, spatial coding and functional characteristic coding can be used alone or in combination.

Among them, the intrinsic characteristics can specifically include properties such as the unique excitation mode, luminescent spectrum and intensity, excitation spectrum and intensity, time response spectrum, and fluorescence polarization direction of the luminescent material, or the unique absorption spectrum, spectrum width and intensity of the light-absorbing/reflecting material. properties, such as soft magnetism, hard magnetism, coercive force, remanence, saturation magnetization, amorphous magnetism, etc. of magnetic materials, or the specific conductivity of conductive materials, or the specific dielectric constant of dielectric materials , permittivity and other properties.

As yet another specific embodiment of the present invention, the feature number 12 may include a check code. That is to say: the characteristic number 12 is composed of a serial number and a check code, and several digits of the serial number can be used to indicate the production batch information of the characteristic number, for example: the printing batch of the characteristic number 12, the printing ink of the characteristic number 12 batch information. In practical applications, several digits of the feature number 12 can be set, for example, the first few digits indicate the production batch of the anti-counterfeiting product, then in order to save costs, only the production batch information of the product can be encrypted uniformly, for example, the The batch information of several securities produced by a certain machine in the same batch is encrypted to generate the same encrypted data information.

Specifically, a check code can be added to the feature number in a weighted or non-weighted way. When the check code is added in a non-weighted manner, the check code mechanism such as modulo 7, modulo 9, modulo 11 or modulo 13 can be used to generate a check code according to other feature symbols in the feature number 12 except the check code.

Further, in the anti-counterfeiting products provided by the above-mentioned embodiments of the present invention, the encrypted data information is specifically obtained by encrypting all or part of the information constituting the feature number 12 and related information of the anti-counterfeiting product by using a preset encryption algorithm. Wherein, the relevant information of the anti-counterfeit product includes any one or more of the production site, manufacturing machine, production date, ink batch and printing plate batch of the anti-counterfeit product.

After the information stored in the one-dimensional barcode, two-dimensional code, three-dimensional code or RFID label contains relevant information such as the production site, manufacturing machine, production date, ink batch and printing plate batch of the anti-counterfeiting product, based on the relevant information , It can realize the traceability management of anti-counterfeit products, and is widely used in many fields of production management, traceability and future circulation process monitoring of valuable documents, and improves the traceability management ability of anti-counterfeit products.

Specifically, the characteristic substance may include any one or more of the characteristics of luminescent characteristics, magnetic characteristics, light absorption/reflection characteristics, Raman effect, light change characteristics, optical polarization characteristics, conductive characteristics and dielectric characteristics. . Wherein, the luminescence characteristics may specifically include photoluminescence, electroluminescence, chemiluminescence, triboluminescence or other energy-stimulated luminescence and the like. Specifically, photoluminescence may include ultraviolet, visible, near-infrared, and infrared fluorescence emission excited by ultraviolet light, ultraviolet, visible, near-infrared, and infrared fluorescence emission excited by visible light, and near-infrared, infrared fluorescence, visible light, and ultraviolet light emitted by near-infrared excitation. The emission spectrum of the luminescent feature may include any wavelength bands of ultraviolet, visible, near-infrared and infrared. The light absorption/reflection characteristics may specifically include light absorption/reflection characteristics of any wavelength bands of X-ray, ultraviolet, visible, near-infrared and infrared. Specifically, the magnetic features may include features of hard magnetic materials and soft magnetic materials. The conductive features may specifically include metal, inorganic, organic or polymer features with conductive properties. Specifically, the dielectric characteristics may include dielectric characteristics of inorganic, organic or polymer materials.

Fig. 2 is a flow chart of an embodiment of the method for identifying anti-counterfeit products of the present invention. The method of this embodiment can identify the authenticity of the anti-counterfeit products provided by the above-mentioned embodiments of the present invention. As shown in Figure 2, it includes the following processes:

21. The identification device reads the characteristic number 12 and characteristic substance code 13 of the anti-counterfeiting product.

For example, the physical characteristics of the characteristic number 12 and the characteristic substance code 13 of the anti-counterfeit product can be converted into electrical signals by a recognition device with integrated functions of sensors and information processing such as optical character recognition and magnetic character recognition.

22. The identification device decodes the characteristic substance code 13 according to a preset decoding method to obtain decoded data.

23. The identification device uses a preset decryption algorithm to decrypt the decoded data to obtain decrypted data information. The decryption algorithm may specifically include a decryption method and a decryption key.

24. The identification device verifies whether the decrypted data information is consistent with the feature number 12, and outputs a verification result.

In the method for identifying anti-counterfeit products provided by the above-mentioned embodiments of the present invention, in addition to setting a characteristic number that uniquely identifies the anti-counterfeit product on the carrier of the anti-counterfeit product, the carrier is also provided with a characteristic substance code. Encode the encrypted data information or make RFID tags on the encrypted data information, wherein the encrypted data information is obtained by encrypting all or part of the information that makes up the feature number by using a preset encryption algorithm. After the characteristic substance code corresponding to the characteristic number is set on the anti-counterfeiting product, the characteristic number can be identified by means of the characteristic substance code, thereby improving the ability of the machine to recognize the characteristic number, accurately reading and identifying the characteristic number on the valuable document, and avoiding the The characteristic number cannot be accurately read and recognized by the optical character recognition system due to contamination or wrinkles; and, since the characteristic number is encrypted and encoded to obtain the characteristic substance code, the characteristic number can be confirmed by verifying whether the characteristic substance code is consistent with the characteristic number Whether it is effective, so as to effectively identify the authenticity of the product, identify the authenticity of the anti-counterfeiting product, and improve the security and anti-counterfeiting ability of the anti-counterfeiting product.

Further, before the embodiment shown in FIG. 2 , the characteristic number 12 and the characteristic substance code 13 can also be set on the carrier 11 of the anti-counterfeit product. As shown in Figure 3, it is a flowchart of another embodiment of the identification method of the anti-counterfeit product of the present invention. This embodiment can set the characteristic number 12 and the characteristic substance code 13 on the carrier 11 of the anti-counterfeit product in the following manner:

31. The first setting device sets the feature number 12 on the carrier 11 of the anti-counterfeit product.

For example, the first setting device can print the feature number 12 on the carrier 11 of the anti-counterfeit product by printing methods such as screen printing, gravure printing, engraving printing, letterpress printing, offset printing or inkjet printing. In addition to printing the characteristic number 12 on the surface of the anti-counterfeit product carrier 11 by printing, the characteristic number 12 can also be embedded in the base of the anti-counterfeit product, that is, the carrier 11 in the form of a security thread, or the characteristic number 12 can be mechanically inserted into the anti-counterfeit product carrier 11. Embedded in the carrier 11 of the anti-counterfeit product or on the surface of the carrier 11, for example, the feature number 12 can be set on the carrier 11 of the anti-counterfeit product by laser drilling, or the feature number 12 can be formed by dealumination on the aluminized film, and then implanted into the carrier 11. For example, the feature number 12 can be printed on the carrier 11 of the anti-counterfeit product by letterpress printing using ink made of colorless or light-colored ultraviolet fluorescent or infrared absorbing material.

32. The encryption device encrypts all or part of the information constituting the feature number 12 using a preset encryption algorithm to obtain encrypted data information. Wherein, the preset decryption algorithm in the embodiment shown in FIG. 2 corresponds to the preset encryption algorithm.

Specifically, according to a specific implementation manner of the present invention, the preset encryption algorithm may include a symmetric encryption algorithm and an asymmetric encryption algorithm. Symmetric encryption algorithms such as DES encryption algorithm, 3DES encryption algorithm, IDEA, AES encryption algorithm, etc.; asymmetric encryption algorithms such as RSA encryption algorithm, elliptic curve encryption algorithm ECC, etc.

In practical applications, several digits of the feature number 12 can be set to indicate the production batch of the anti-counterfeiting product. In order to save costs, only the production batch information of the product can be encrypted uniformly. For example, the same batch of production of a certain machine Encrypt the batch information of several securities to generate the same encrypted data information.

33. The encoding device encodes the encrypted data information according to the preset encoding method through the characteristic substance, or makes an RFID tag on the encrypted data information to obtain the characteristic substance code 13 that can be recognized by the machine. Wherein, the preset decoding mode adopted in the embodiment shown in FIG. 2 corresponds to the preset encoding mode.

Specifically, according to a specific embodiment of the present invention, the preset encoding method may include spatial encoding for encoding the characteristic substance within a spatial range and/or functional characteristic encoding for encoding the intrinsic characteristics of the characteristic substance. Correspondingly, the characteristic substance code 13 obtained by making the code or the RFID label may specifically include a one-dimensional barcode, two-dimensional code, three-dimensional code and/or RFID label.

34. The second setting device sets the characteristic substance code 13 on the carrier 11 of the anti-counterfeit product.

For example, the second setting device can print the characteristic substance code 13 on the carrier 11 of the anti-counterfeit product by traditional screen printing, gravure printing, engraving printing, letterpress printing, offset printing or inkjet printing. For example, when the carrier 11 as the base of the valuable document is prepared from a paper base mainly composed of cotton fibers, the characteristic substance code 13 can be evenly sprayed or directional sprayed on the substrate of the valuable document, that is, the carrier, during the papermaking process. 11 on. For example, using ink made of colorless or light-colored infrared-absorbing material, the two-dimensional code obtained by encoding the encrypted data information is printed on the carrier 11 of the anti-counterfeiting product in letterpress printing, thereby preventing large-scale counterfeiting. price documents. Specifically, the feature number 12 and the substance code 13 can be printed on the same ink layer on the surface of the carrier 11 , or alternately printed on different ink layers on the surface of the carrier 11 . The characteristic substance code 13 can be printed on the carrier 11 of the anti-counterfeit product by using the traditional printing method, which can effectively save the cost required for the anti-counterfeit product.

In addition to the above-mentioned traditional printing methods, digital printing methods can also be used, such as heat-sensitive, thermal transfer, inkjet, inkjet, laser inkjet and other technologies, to print the two-dimensional code obtained by encoding the encrypted data information on the anti-counterfeiting product on the carrier 11. In addition, the encrypted data information can also be made into an RFID tag and placed on the carrier 11, so as to improve productivity to meet the production demand of anti-counterfeit product printing.

Specifically, in the above-mentioned embodiment shown in FIG. 3 , step 31 may be performed prior to steps 32-34, may be performed simultaneously with steps 32-34, or may be performed later than steps 32-34.

Further, in step 32 of the identification method of the above-mentioned embodiment of the present invention, when encrypting all or part of the information that makes up the characteristic number 12, the relevant information of the anti-counterfeit product, such as the production site and manufacturing machine of the anti-counterfeit product, can also be encrypted. Any one or more of all relevant information such as station, production date, ink batch and printing plate batch are encrypted to obtain encrypted data information.

In addition, in the identification methods of the above-mentioned embodiments of the present invention, the feature number 12 may include a check code. The feature number 12 is specifically composed of a serial number and a check code. Several digits of the serial number can be used to indicate the production batch information of the feature number, for example: the printing batch of the feature number 12, the printing ink batch of the feature number 12 and other information. Correspondingly, after decrypting the decoded data by using the preset decryption algorithm to obtain the decrypted data information, other information in the characteristic number 12 except the check code can be checked and corrected through the check code.

Through the check code method, it can be judged whether the identification device has correctly identified the characteristic number 12. In the case of a wrong identification by the identification device, with the help of the characteristic substance code 13 corresponding to the characteristic number 12, the situation of the identification error of the characteristic number 12 can be analyzed , and combined with the check code to correct the wrongly read feature number 12, so as to accurately read and identify the feature number on the valuable document, and prevent anti-counterfeiting products from being wrinkled and dirty after long-term use. Reading and identification, leading to losses caused by the withdrawal of a large number of anti-counterfeiting products from the circulation field.

Fig. 4 is a schematic structural diagram of an anti-counterfeit product as an application embodiment of the present invention. In this application embodiment, the characteristic substance code is specifically a two-dimensional code. As shown in Figure 4, the carrier 11 of the anti-counterfeit product has a characteristic number 12, namely: BH12345678, the last digit 8 in the characteristic number 12 is a check code, so as to facilitate simple anti-counterfeiting identification and accurate reading of the machine, Transmission feature number 12. Use preset encryption algorithms, such as DES, 3DES, IDEA, AES, etc., including encryption methods and encryption keys, to encrypt the feature number BH12345678, and obtain encrypted data information: 235345sfh4576. The encrypted data information 235345sfh4576 is encoded by a preset two-dimensional code encoding method to generate a two-dimensional code 13, which is printed on the surface of the anti-counterfeiting product by inkjet printing. Inkjet inks are selected from characteristic materials with anti-counterfeiting features, preferably colorless, transparent or light-colored infrared-absorbing inks or ultraviolet fluorescent inks. Due to the use of complex and difficult-to-decipher encryption algorithms, it is difficult for criminals to find the encrypted correspondence between the feature number 12 and the two-dimensional code 13.

In addition, a key different from the encryption feature number 12 can also be used to encrypt the relevant information of the anti-counterfeit product, such as the production site, manufacturing machine, production date, ink batch, printing plate batch and many other information. The two-dimensional code 13 is generated by encoding the encrypted data information and the encrypted information of the anti-counterfeiting product-related information using a preset two-dimensional code encoding method. Which items of the relevant information of the anti-counterfeit product use the same key or use different keys can be preset. Based on this, a multi-level key management mechanism can be set up so that users at different levels can carry out anti-counterfeiting identification and traceability management on anti-counterfeiting products. For example, it can be set that the central bank is the top manager with the highest key authority. It has all the keys needed to completely decrypt the two-dimensional code 13, and can decrypt all the information of the two-dimensional code 13; for law enforcement agencies, it The authority of the key is limited, and it has part of the keys needed to partially decrypt the two-dimensional code 13, and can only decrypt part of the information of the two-dimensional code 13; for commercial activities, operators and consumers have lower-end encryption Without the key authority, only the feature number 12 in the two-dimensional code 13 can be decrypted, so as to identify the authenticity of the anti-counterfeit product.

Fig. 5 is a schematic structural diagram of an anti-counterfeit product as another application embodiment of the present invention. In this application embodiment, the characteristic substance code is specifically a two-dimensional code, and only part of the information in the characteristic number 12 is coded. As shown in Figure 5, the carrier 11 of the anti-counterfeit product has a characteristic number 12, namely: BH12345678, the last digit 8 in the characteristic number 12 is a check code, so as to facilitate simple anti-counterfeiting identification and accurate reading of the machine, Transmission feature number 12. Select any three-digit BH4 in the feature number BH12345678, and use the preset encryption algorithm, including the encryption method and encryption key, to encrypt the encrypted data information, and select the Data Matrix encoding method with high information density to perform encryption on the encrypted data information. The two-dimensional code is coded to obtain the two-dimensional code 13, and the two-dimensional code 13 is printed on the carrier 11 by letterpress printing with an ink containing the characteristic substance of the infrared absorbing material. The infrared absorbing material can be organic dyes, organic materials, organic materials containing transition metal ions and rare earth metals, inorganic oxides and salts, etc. The infrared absorbing material is preferably a colorless, transparent or light-colored material. Since only part of the information BH4 of the characteristic number 12 is encrypted, each relief printing plate required by the letterpress printing method can print a batch of anti-counterfeiting products containing BH4 in the characteristic number 12, instead of each anti-counterfeiting product Both use a specific two-dimensional code embossed printing plate. This batch of anti-counterfeit products containing BH4 uses the corresponding form of the same two-dimensional code 13, which is more suitable for the printing process of existing anti-counterfeit products.

When adopting the identification method of the embodiment of the present invention to identify the anti-counterfeit product of the embodiment shown in Figure 5, at first, the feature number 12 on the anti-counterfeit product is read and identified, and the machine identification result is BH12345678; then, the two-dimensional code 13. Decoding, decryption and identification are performed to obtain the decrypted data information as BH4. Subsequently, it is verified whether BH12345678 is consistent with BH4; if they are consistent, it can be judged that the anti-counterfeiting product is a genuine valuable document, otherwise, it is a false valuable document. If BH12345678 is consistent with BH4, but the check code in the identification result of feature number 12 is not the check code corresponding to the identification result of feature number 12, it can be judged that the identification number of feature number 12 is wrong, and the frequently misread number is replaced to correct it. For example, if the modulo 9 check code mechanism is used to check BH1234567 in the feature number 12, the check sum is 8, but when the machine reads it, the calculated check sum is 2, which can be judged as a misread. Further, according to the regularity of misreading, for example, misreading of 3 and 8, 0 and 6 often occurs, and the difference between them is 5 and 6, so the misreading number can be judged by the difference of the checksum. For example, the checksum is originally 8, but when the machine reads it as 2, it is possible that when it reads 6, the paper is uneven and dirty, and it is misread as 0, so the read 0 can be replaced with 6, Then verify the accuracy of the check code, so as to play a role in correcting the feature number 12 to a certain extent.

All in all, in this application example, the two-dimensional encoding of the characteristic substance is carried out on the characteristic symbol of the characteristic number, so as to ensure the accurate reading of the characteristic number and realize the accurate judgment of the check code. After the circulation environment, it is of great significance that the characteristic number is not easy to be read accurately by the optical character recognition system due to contamination or wrinkles. Adopting this method improves the security anti-counterfeiting ability of anti-counterfeiting products and the accurate reading ability of machine identification to a certain extent.

Fig. 6 is a structural schematic diagram of an anti-counterfeiting product as another application embodiment of the present invention. In this application embodiment, the characteristic substance code is specifically a two-dimensional code, and only part of the information in the characteristic number 12 is coded. As shown in Figure 6, there is a characteristic number 12 on the carrier 11 of the anti-counterfeit product, namely: BH12345678, the last digit 8 in the characteristic number 12 is a check code, so as to facilitate simple anti-counterfeiting identification and accurate reading of the machine, Transmission feature number 12. Select any three-digit BH4 in the feature number BH12345678, and use the preset encryption algorithm, including the encryption method and encryption key, to encrypt to obtain encrypted data information, encode the encrypted data information with a one-dimensional code, and the ink used for printing contains The luminescence spectrum encoding of the characteristic substance of the above-mentioned characteristic material, obtains one-dimensional code 13, wherein the characteristic substance selects the ultraviolet fluorescent material, includes rare earth doping, organic dye, semiconductor light-emitting material, etc., and the ultraviolet fluorescent material is preferably colorless and transparent or has a lighter body color s material. Afterwards, the one-dimensional code 13 is printed on the carrier 11 by letterpress printing with the ink. Due to the limited amount of information in one-dimensional codes, one-dimensional codes can be extended to one dimension by encoding the luminescence spectrum of characteristic substances, and the coded data can be expressed in the form of one-dimensional codes and luminescence spectrum encodings, which can reach or approach the two-dimensional code encoding amount of information. The luminescence spectrum of the characteristic substance is shown in Figure 7, which has multiple peak positions, and can be spectrally coded through the peak positions. The luminescence spectrum is coded after being specially designed. For different batches of anti-counterfeiting products, a new code form can be generated by adjusting the peak position of the spectrum.

Since only part of the information BH4 of the characteristic number 12 is encrypted, each relief printing plate required by the letterpress printing method can print a batch of anti-counterfeiting products containing BH4 in the characteristic number 12, instead of each anti-counterfeiting product Both use a specific embossed printing plate. This batch of anti-counterfeit products containing BH4 uses the same one-dimensional code code combined with the corresponding form of characteristic substance spectral code, which is more suitable for the printing process of existing anti-counterfeit products.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other. As for the method embodiment, because it corresponds to the product embodiment, the description is relatively simple, and for relevant parts, please refer to the part of the description of the product embodiment.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

In the embodiment of the present invention, the feature number can be identified by means of the feature substance code, thereby improving the ability of the machine to recognize the feature number, accurately reading and identifying the feature number on the valuable document, and avoiding the contamination or wrinkles of the feature number. It is accurately read and recognized by the optical character recognition system; and, since the characteristic number is encrypted and encoded to obtain the characteristic substance code, it can be confirmed whether the characteristic number is valid by verifying whether the characteristic substance code is consistent with the characteristic number, so as to effectively identify the authenticity of the product Anti-counterfeiting, which improves the security and anti-counterfeiting ability of anti-counterfeiting products; can realize the traceability management of anti-counterfeiting products, and is widely used in many fields of production management, traceability and monitoring of the circulation process of valuable documents, and improves the traceability management of anti-counterfeiting products ability.

The description of the present invention has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention and design various embodiments with various modifications as are suited to the particular use.

Claims (20)

1. An anti-counterfeiting product, comprising a carrier, the carrier is provided with a characteristic number that uniquely identifies the anti-counterfeiting product, it is characterized in that, the carrier is also provided with a characteristic substance code, and the characteristic substance code is passed through the characteristic substance according to The encrypted data information is encoded by the preset encoding method or the encrypted data information is obtained by making a radio frequency identification RFID tag. The encrypted data information is obtained by combining all or part of the information forming the feature number with the anti-counterfeiting The relevant information of the product is obtained by encrypting, and the relevant information of the anti-counterfeit product includes any one or more of the production site, manufacturing machine, production date, ink batch and printing plate batch of the anti-counterfeit product; Wherein, all or part of the information of the feature number and the relevant information of the anti-counterfeit product are encrypted with different keys, and any one or more items of the relevant information of the anti-counterfeit product are respectively encrypted with different keys, or All of the relevant information is encrypted with the same key; different levels of users have different levels of key authority, and different levels of key authority support decryption of different parts of encrypted information, and the highest level of key authority supports decryption of encrypted data Information, the lowest level of key authority only supports decrypting encrypted information of all or part of the information of the feature number in the encrypted data information. 2. The anti-counterfeiting product according to claim 1, characterized in that, the carrier is made of a paper substrate, a plastic substrate, and/or a composite plastic substrate. 3. The anti-counterfeit product according to claim 1, characterized in that, the feature number includes any one or more of letters, numbers, characters and symbols. 4. The anti-counterfeit product according to claim 1, characterized in that, the characteristic substance code is specifically distributed in the form of code in the substrate of the carrier or printed on the surface of the substrate of the carrier. 5. The anti-counterfeit product according to claim 1, characterized in that, the preset encoding method includes spatial encoding of encoding the characteristic substance within a spatial range and/or encoding the intrinsic characteristics of the characteristic substance The functional characteristic code; The characteristic substance codes include one-dimensional barcodes, two-dimensional codes, three-dimensional codes and/or RFID tags. 6. The anti-counterfeit product according to claim 5, characterized in that, the intrinsic characteristics include the specific excitation mode of the luminescent material, the luminescence spectrum and intensity, the excitation spectrum and intensity, the time response spectrum, the properties of the fluorescence polarization direction, or the light absorption /The unique absorption spectrum, spectral width and intensity properties of reflective materials, or the unique soft magnetic, hard magnetic, coercive force, remanence, saturation magnetization, amorphous magnetic properties of magnetic materials, or the specific conductivity properties of conductive materials , or the specific dielectric constant and permittivity properties of dielectric materials. 7. The anti-counterfeit product according to claim 1, characterized in that, the feature number includes a check code. 8. The anti-counterfeiting product according to claim 1, characterized in that, the characteristic substance includes a material having luminescent characteristics, magnetic characteristics, light absorption/reflection characteristics, Raman effect, optical variable characteristics, optical polarization characteristics, conductive characteristics and dielectric characteristics. A substance with any one or more of its electrical characteristics. 9. The anti-counterfeiting product according to claim 8, characterized in that, the luminescent features include photoluminescence, electroluminescence, chemiluminescence, triboluminescence or other energy-stimulated luminescent features; The light absorption/reflection characteristics include X-ray, ultraviolet, visible, near-infrared and infrared light absorption/reflection characteristics in any band; The magnetic characteristics include characteristics of hard magnetic materials and soft magnetic materials; The conductive features include metal, inorganic, organic or polymer features with conductive properties; The dielectric characteristics include dielectric characteristics of inorganic, organic or polymer materials. 10. The anti-counterfeiting product according to claim 9, characterized in that, the emission spectrum of the luminescent feature includes any band of ultraviolet, visible, near-infrared and infrared; The photoluminescence includes ultraviolet, visible, near-infrared, infrared fluorescent emission excited by ultraviolet, visible excited ultraviolet, visible, near-infrared, infrared fluorescent emission, and near-infrared excited near-infrared, infrared fluorescent, visible light, ultraviolet light emitted. 11. The anti-counterfeiting product according to claim 1, wherein the preset encryption algorithm includes a symmetric encryption algorithm and an asymmetric encryption algorithm. 12. The anti-counterfeiting product according to claim 11, wherein the symmetric encryption algorithm includes Data Encryption Standard DES encryption algorithm, 3DES encryption algorithm, International Data Encryption Algorithm IDEA, Advanced Encryption Standard AES encryption algorithm; The asymmetric encryption algorithm includes RSA encryption algorithm and elliptic curve encryption algorithm ECC. 13. The anti-counterfeit product according to claim 1, wherein the carrier includes securities, bills, certificates, product identification, product packaging, certification documents and anti-counterfeit cards. 14. A method for identifying anti-counterfeit products, comprising: The identification device reads the characteristic number and characteristic substance code of the anti-counterfeit product; The identification device decodes the characteristic substance code according to a preset decoding method to obtain decoded data; The identification device uses a preset decryption algorithm to decrypt the decoded data to obtain decrypted data information; The identification device verifies whether the decrypted data information is consistent with the read feature number, and outputs a verification result; Wherein, all or part of the information of the feature number and the related information of the anti-counterfeit product are encrypted with different keys, and the related information of the described anti-counterfeit product includes the production site, manufacturing machine, production date, ink batch, etc. of the anti-counterfeit product. Any one or more of the times and printing plate batches; any one or more of the relevant information of the anti-counterfeiting product is encrypted with a different key, or all of the relevant information is encrypted with the same key Key encryption; different levels of users have different levels of key authority, different levels of key authority support decryption of different parts of encrypted information, the highest level of key authority supports decryption of encrypted data information, the lowest level of key authority only supports decryption The encrypted information of all or part of the information of the characteristic number in the encrypted data information. 15. The method according to claim 14, wherein, before the identification device reads the characteristic number and the characteristic substance code of the anti-counterfeit product, it also includes: The first setting device sets the feature number on the carrier of the anti-counterfeit product; The encryption device uses a preset encryption algorithm to encrypt all or part of the information constituting the feature number to obtain encrypted data information, and the preset decryption algorithm corresponds to the preset encryption algorithm; The encoding device encodes the encrypted data information according to the preset encoding method through the characteristic substance or performs RFID label production on the encrypted data information to obtain the characteristic substance encoding, and the preset decoding method corresponds to the preset encoding method; The second setting device sets the characteristic substance code on the carrier of the anti-counterfeit product. 16. The method according to claim 15, characterized in that, setting the feature number on the carrier of the anti-counterfeit product by the first setting device comprises: the first setting device uses screen printing, gravure printing Printing method, engraving printing method, letterpress printing method, offset printing method or inkjet printing method, printing the characteristic number on the carrier of the anti-counterfeiting product; or The second setting device setting the characteristic substance code on the carrier of the anti-counterfeit product includes: the second setting device uses screen printing, gravure printing, engraving printing, letterpress printing, offset printing or Inkjet printing method, the characteristic substance code is printed on the carrier of the anti-counterfeit product. 17. The method according to claim 15, wherein the preset encoding method includes spatial encoding of the characteristic substance within a spatial range and/or encoding of the intrinsic characteristics of the characteristic substance Functional characteristic coding; The characteristic substance codes include one-dimensional barcodes, two-dimensional codes, three-dimensional codes and/or RFID tags. 18. The method according to any one of claims 14 to 17, wherein the feature number includes a check code; After the decrypted data information is obtained, the method further includes: verifying and correcting other information in the feature number except the verification code through a verification code. 19. The method according to any one of claims 15-17, wherein the preset encryption algorithm includes a symmetric encryption algorithm and an asymmetric encryption algorithm. 20. The method according to claim 19, wherein the symmetric encryption algorithm comprises DES encryption algorithm, 3DES encryption algorithm, IDEA, AES encryption algorithm; The asymmetric encryption algorithm includes RSA encryption algorithm and ECC.