A commodity anti-counterfeiting method and a radio frequency identification tag medium applicable thereto

Abstract

The present invention provides a commodity anti-counterfeiting method and a radio frequency identification tag medium applicable thereto. The commodity anti-counterfeiting method includes an anti-counterfeiting data establishment process, an anti-counterfeiting risk assessment process, and an anti-counterfeiting data verification process. The radio frequency identification tag medium can be used in conjunction with the above method. The present invention can reduce the risk of forging commodities for fraud by recycling radio frequency identification tags or chips pasted on commodities. By using cryptography techniques and a carefully designed risk assessment process, while taking into account security, flexibility, and convenience, the radio frequency identification tag medium reduces the complexity of the method in engineering applications.

Description

Technical Field

[0001] The invention belongs to the field of anti-counterfeiting, and in particular relates to a commodity anti-counterfeiting method and a radio frequency identification label medium suitable for the commodity anti-counterfeiting method. Background Art

[0002] Radio frequency identification (RFID) tags, as a contactless automatic identification technology, have shown great application potential in the field of commodity anti-counterfeiting and traceability. When RFID tags are embedded in commodities, each tag contains a globally unique electronic code that can record detailed information about the product, such as production date, batch number, source of raw materials, manufacturer, logistics track, etc. The introduction of this technology enables the entire process of commodities from production to sales to be monitored and tracked in real time, greatly improving the accuracy and efficiency of anti-counterfeiting.

[0003] Although RFID tags combined with cryptographic technology can theoretically provide strong protection against copying and counterfeiting, they still face challenges in practical application. For example, counterfeiters can carefully remove legitimate RFID tags from goods and then paste them on counterfeit products again, thereby reusing RFID tags. What's more tricky is that the anti-counterfeiting characteristics of RFID tags mainly rely on the chip. Even if the easy-tear technology is used to make the label itself difficult to transfer, in most cases, the chip still functions normally after the label is torn, and criminals can still deceive the anti-counterfeiting traceability system by recycling and repackaging the chip.

[0004] In order to prevent the reuse of RFID tags and chips, the usual method is to let the chip record and identify characteristic data such as external circuit status and antenna impedance, and check whether there is any change during each verification. However, this method has significant limitations. For example, it requires special design of the chip and cannot be applied on ordinary chips. It also requires high processing technology and reliability of RFID tags, which increases the application cost. Moreover, the above external characteristics may change over time and are prone to false alarms, which limits the promotion and application of the above technologies. Therefore, it is necessary to design a universal, reliable and easy-to-use anti-counterfeiting method to prevent criminals from deceiving the authenticity verification system by recycling and reusing RFID tags and chips, causing losses to manufacturers and consumers. Summary of the invention

[0005] The present invention provides a commodity anti-counterfeiting method and a radio frequency identification tag medium, which solves the problem that when the radio frequency identification tag or chip is illegally recycled and reused, the expected commodity anti-counterfeiting effect cannot be achieved by simply relying on the authenticity identification of the radio frequency identification tag itself.

[0006] The method of the present invention does not require special design of the RFID tag chip. By comprehensively utilizing physical anti-counterfeiting, RFID tag anti-counterfeiting, and cryptographic technologies, as well as carefully designed method steps, it not only significantly reduces the risk that lawbreakers deceive the authenticity verification system by recycling RFID tags or chips on legitimate goods, but also avoids introducing complex operations in the commodity production or anti-counterfeiting verification stage, such as the need to extract physical features in real time and reliably by a computer and the need to write data into the RFID tag. And an innovative anti-counterfeiting risk assessment process is introduced, enabling users to verify the anti-counterfeiting features of the commodity only when the anti-counterfeiting risk is relatively high, significantly reducing the operation complexity of users. The overall solution is scientific, reasonable, and highly practical. The RFID tag medium provided by the present invention for use in conjunction with the above method further reduces the application difficulty of this method.

[0007] The commodity anti-counterfeiting method of the present invention includes three links: anti-counterfeiting data establishment process, anti-counterfeiting risk assessment process, and anti-counterfeiting data verification.

[0008] The anti-counterfeiting data establishment process includes the following steps:

[0009] 1) Collect the chip identification data T of the RFID tag attached to the commodity. The chip identification data is generally globally unique and can be used as the primary key of the database to index other associated data.

[0010] 2) Collect the commodity coding data C printed on the commodity, including a combination of any one or more of the following data: batch number, production date, serial number, logistics code. There may be multiple sets of data printed on the commodity. Preferably, select the data with uniqueness as the commodity coding.

[0011] 3) Select one or more personalized physical features on the commodity itself or the attachments on the commodity that are specific and difficult to replicate, and at least be able to collect the original commodity feature data through a combination of any one or more of the following collection methods to obtain the original commodity feature data P; the collection methods at least include taking pictures, recording, video recording, weighing, measuring length, measuring thickness, etc. to collect the original commodity feature data. Among them, when the RFID tag attached to the commodity is an RFID tag containing a fluorescent anti-counterfeiting medium, the personalized physical feature is the fluorescent anti-counterfeiting medium feature in the personalized physical feature layer of this RFID tag.

[0012] 4) Calculate the check code for the original commodity feature data P to obtain the check code V, and the data integrity of the original commodity feature data P can be verified through the check code V.

[0013] 5) Save the chip identification data T, product code data C, original product feature data P, and check code V into the information system for association to obtain the anti-counterfeiting data. Subsequently, relevant data can be retrieved through the chip identification data T or the product code data C. The association of the above data can be achieved by jointly saving T, C, V, and the storage paths of P in the file system into a table in a relational database. To ensure the retrieval speed, indexes can be established for T and C in the database.

[0014] The personalized physical features include one or more of the following types, such as: artificially designed features, including anti-counterfeiting additives or anti-counterfeiting patterns such as security threads, random fibers, fluorescent spots, magnetic data, etc.; microscopic features formed by the process randomness during processing, such as inkjet dot features, intaglio and offset printing texture features, holographic phase features, etc.; naturally formed features, such as the natural texture of the material itself, the exact quality of the product, etc. Among them, the selected features should have high uniqueness and be difficult to forge.

[0015] The algorithm for generating the check code V of the original physical feature data P is: V = MAC message authentication code algorithm (key, hash algorithm (original data set)). Among them, the hash algorithm can be selected from SM3, SHA, etc., and the MAC message authentication code algorithm can be selected from HMAC, CMAC, etc. The length of the check code is not more than 32 bytes. If the application system has restrictions on the length of the check code, the check code generated by the above algorithm can be truncated as required.

[0016] The anti-counterfeiting risk assessment process includes the following steps:

[0017] 1) Obtain the chip identification data T' and product code data C' of the radio frequency identification tag attached to the product to be verified.

[0018] 2) Retrieve whether the chip identification data T' exists in the information system. If the retrieval result is existence, then judge whether the verified product code data C is consistent with the product code data C' of the product to be verified. If they are consistent, the conclusion of this step is passed; if the retrieval result is non-existence or the product code data is inconsistent, stop the anti-counterfeiting risk assessment process and return an anomaly, indicating that the product has a risk of forgery.

[0019] 3) Execute the following risk assessment functions. If any one returns passed, the conclusion of this step is passed:

[0020] 3-1) If this is the first time this risk control assessment process is executed for this chip identification T, return passed;

[0021] 3-2) If the difference between the current date and the date recorded when the anti-counterfeiting data verification was successful last time is less than the threshold, return passed; this threshold is generally not more than 48 hours;

[0022] 3-3) Generate a random number N in the range of [0, 1]. If N is greater than the random risk control threshold, return "Pass".

[0023] 4) If the conclusions of steps 2) to 3) are all "Pass", then the conclusion of the anti-counterfeiting risk assessment process is "Pass", the risk of product forgery is low, and there is no need to execute the subsequent anti-counterfeiting data verification process; otherwise, return "Fail".

[0024] If the conclusion of the anti-counterfeiting risk assessment process is "Fail", it means that the possibility of illegal reuse of the RFID tag or chip cannot be excluded through the risk assessment method, and the anti-counterfeiting data verification should be actually carried out, including the following steps:

[0025] 1) Perform cryptographic calculations on the original product feature data P of the product's personalized physical features obtained by retrieving the information system using the chip identification data T to obtain the verification code V'. Compare the verification code V and the verification code V'. If they are different, report an error.

[0026] 2) Use the original data P to perform consistency verification on the personalized physical features on the product. If the verification fails, it means that although the RFID tag functions normally, the personalized physical features on the product or the product attachment corresponding to the tag have changed, and there is a risk of product forgery.

[0027] As a preference of the above technical solution, preferably, the personalized physical features on the product or attachment include one or more of the following combinations, such as:

[0028] 1) Artificially designed features, including at least security threads, random fibers, fluorescent spots, magnetic data, anti-counterfeiting additives or anti-counterfeiting patterns; 2) Microscopic features formed by the process randomness during processing, such as inkjet dot features, intaglio and offset printing texture features, holographic phase features; 3) Naturally formed features, such as the natural texture of the material itself, the precise quality of the product.

[0029] As a preference of the above technical solution, preferably, the algorithm for generating the verification code V of the original physical feature data P is: V = MAC message authentication code algorithm (key, hash algorithm (original data set)); where the hash algorithm can be selected from SM3, SHA, etc., and the MAC message authentication code algorithm can be at least selected from HMAC, CMAC; the length of the verification code is not more than 32 bytes. If the application system has restrictions on the length of the verification code, the verification code generated by the above algorithm is truncated as required.

[0030] As a preference of the above technical solution, preferably, the method for consistency verification of personalized physical features is manual verification or computer automatic verification.

[0031] The radio frequency identification tag and chip described in the present invention should support at least one security authentication method such as passwords. Preferably, the radio frequency identification tag should support a dynamic authentication mechanism based on cryptographic algorithms such as SM7, and the passwords and keys in each tag are different to achieve a good anti-counterfeiting effect.

[0032] The physical characteristics described in the present invention should have characteristics such as being stable, reliable, and convenient to measure, including but not limited to dimensions such as optics, magnetism, and mass.

[0033] The present invention does not limit the specific implementation method of the feature verification method. For example, the feature verification can be performed by displaying the original picture and then manually comparing it by consumers or staff. If an automated verification method is used, it can be implemented by numerical comparison, pattern recognition, etc., or it can also be trained and matched using machine learning technology.

[0034] The present invention also provides a radio frequency identification tag medium suitable for the above-mentioned commodity anti-counterfeiting method, including a personalized physical characteristic layer, an adhesive layer, and a chip inlay layer arranged in sequence from top to bottom. The personalized physical characteristic layer is a paper-based material, and several fluorescent anti-counterfeiting media in the form of circular flakes and / or linear shapes and / or polygonal shapes are randomly embedded in part or all of its areas. Patterns or texts can be printed on its surface according to needs, but it should be ensured that the fluorescent anti-counterfeiting media is still clearly visible after printing. The chip inlay layer is a high-frequency and / or ultra-high-frequency radio frequency identification electronic tag Inlay, and its substrate is easily torn, including a combination of any one or more of the following materials: paper, fragile resin film, polyester film / polyolefin film using a flower knife and / or tear line process. The adhesive layer is used to bond the personalized physical characteristic layer and the chip inlay layer.

[0035] As a preference of the above technical solution, preferably, it further includes a self-adhesive layer and a release layer.

[0036] As a preference of the above technical solution, preferably, the self-adhesive layer includes a blank window, and the blank window is used to spray a reactive glue before pasting to form a more reliable and irreversible pasting effect, increasing the difficulty of peeling the radio frequency identification tag from the commodity without damage.

[0037] As a preference of the above technical solution, preferably, the paper basis weight of the personalized physical characteristic layer is not higher than 90 grams. Preferably, the paper basis weight is between 30 grams and 70 grams. The required patterns or texts can be spray-printed on the surface of the personalized physical characteristic layer, such as spray-printing commodity coding data in real time at the packaging site.

[0038] As a preference of the above technical solution, preferably, the fluorescent material added to the personalized physical characteristic layer can be colorless under visible light, which does not affect the subsequent printing effect, and presents a single color or multiple different colors under ultraviolet light.

[0039] Preferably, in the above technical solution, the individualized physical feature layer will be spray-printed with product code data before pasting.

[0040] The chip inlay layer is a high-frequency and / or ultra-high-frequency radio frequency identification (RFID) electronic tag Inlay, and its substrate is preferably made of materials that are easy to tear, such as paper, fragile film, etc. In particular, when the chip inlay layer uses materials that are difficult to tear, such as polyester films / polyolefin films like PET, PP, PVC, etc., a scoring knife and / or tear line process needs to be added. The adhesive layer is used to bond the individualized physical feature layer and the chip inlay layer.

[0041] The adhesive layer is used to bond the individualized physical feature layer and the chip inlay layer.

[0042] When the application environment requires the RFID tag to have self-adhesion, below the chip inlay layer, there is also an adhesive layer and a release layer.

[0043] Preferably, the adhesive layer can include a blank window without adhesive. By spraying a reactive glue at the blank window on-site before pasting it onto the product surface, a more reliable and irreversible pasting effect can be formed, increasing the difficulty of peeling the RFID tag from the product without damage. The reason for setting the blank window without adhesive is that if the reactive glue is directly sprayed on the adhesive layer, the bonding effect will be affected. The sprayed glue can be reactive polyurethane, thermosetting resin, two-component glue, etc. The reason for retaining the adhesive layer is that the self-adhesive tag can simplify the automated pasting process, reduce problems such as glue overflow after on-site spraying of glue, and improve the problem of label warping caused by uneven spraying.

[0044] Compared with the prior art, the advantages of the present invention are:

[0045] 1) Comprehensive utilization of RFID tag identification data, product code data, and individualized physical features on the product and its attachments for anti-counterfeiting, significantly improving the difficulty of counterfeiting.

[0046] 2) It is possible to achieve the goal of verifying whether the tag and the chip are reused without using a specially designed RFID tag chip, and seamlessly compatible with existing RFID chip products on the market.

[0047] 3) The use of the anti-counterfeiting risk assessment process significantly reduces the frequency of physical feature verification, improves the system performance, and reduces the user operation and mental burden.

[0048] 4) During the establishment of anti-counterfeiting data, only the original photos, videos, or measurement data of the physical features are required, without the need to ensure uniqueness, nor to write data to the RFID tag, simplifying the implementation complexity. During the anti-counterfeiting data verification stage, manual verification of physical features or automated verification algorithms can be introduced as needed.

[0049] 5) The radio frequency identification tag medium provided by the present invention simplifies the system deployment complexity and improves the packaging production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] 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 required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0051] Figure 1 It is a schematic flowchart of a commodity anti-counterfeiting method provided by the present invention.

[0052] Figure 2 It is a flowchart of the anti-counterfeiting data establishment process in a commodity anti-counterfeiting method provided by the present invention.

[0053] Figure 3 It is a flowchart of the anti-counterfeiting risk assessment process in a commodity anti-counterfeiting method provided by the present invention.

[0054] Figure 4 It is a flowchart of the anti-counterfeiting data verification process in a commodity anti-counterfeiting method provided by the present invention.

[0055] Figure 5 It is a structural schematic diagram of a radio frequency identification tag medium provided by the present invention.

[0056] Figure 6 It is a schematic structural diagram of a radio frequency identification tag medium provided by the present invention under sunlight.

[0057] Figure 7 It is a schematic structural diagram of a radio frequency identification tag medium provided by the present invention under ultraviolet light.

[0058] Figure 8 For Figure 5 It is a schematic structural diagram of the adhesive layer in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0059] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, 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 some but not all of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0060] First, a brief description of the method part in the technical solution of the present invention is as followsFigure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as shown in:

[0061] First, a anti-counterfeiting data establishment process is carried out, including the following steps, where the anti-counterfeiting data is established during the production process of the commodity packaging:

[0062] Step 101: Collect the chip identification data T of the radio frequency identification tag attached to the commodity.

[0063] Step 102: Collect the commodity code data C printed on the commodity, including at least: batch number, production date, serial number, and logistics code.

[0064] Step 103: Select the personalized physical characteristics of the commodity to obtain the original commodity characteristic data P.

[0065] Select at least one personalized physical characteristic of the commodity itself or the attachments on the commodity, and at least be able to collect the original commodity characteristic data through methods such as taking pictures, recording, video recording, weighing, measuring length, and measuring thickness to obtain the original commodity characteristic data P. The personalized physical characteristics also include one or more of the following types, such as: 1) Artificially designed characteristics, including at least security threads, random fibers, fluorescent spots, magnetic data, anti-counterfeiting additives, or anti-counterfeiting patterns; 2) Microscopic characteristics formed by the process randomness during processing, such as inkjet code dot characteristics, intaglio and offset printing texture characteristics, and holographic phase characteristics; 3) Naturally formed characteristics, such as the natural texture of the material itself and the precise quality of the commodity. In particular, when the radio frequency identification tag attached to the commodity is the radio frequency identification tag medium of the present invention, the personalized physical characteristic is the fluorescent anti-counterfeiting information of the label personalized physical characteristic layer.

[0066] Step 104: Obtain the check code V.

[0067] Use V = MAC message authentication code algorithm (key, hash algorithm (original data set)) to calculate the check code for the original commodity characteristic data P to obtain the check code V. The data integrity of the original commodity characteristic data P can be verified through the check code V. Among them, the hash algorithm can be selected from SM3, SHA, etc., and the MAC message authentication code algorithm can be selected from HMAC, CMAC, etc. The length of the check code is not more than 32 bytes. If the application system has restrictions on the length of the check code, the check code generated by the above algorithm can be truncated as required.

[0068] Step 105: Associate each data to form anti-counterfeiting data.

[0069] The chip identification data T, product code data C, original product feature data P, and check code V are saved in the information system for association to obtain the anti-counterfeiting data. Subsequently, relevant data can be retrieved through the chip identification data T or product code data C for verification. The association of the above data can be achieved by saving T, C, V, and the storage path of P in the file system into a relational database. To ensure the retrieval speed, indexes can be established for T and C in the database.

[0070] Secondly, an anti-counterfeiting risk assessment process is carried out. This process is usually carried out after the product is sold, and the process includes the following steps:

[0071] Step 201: Obtain the chip identification data T' and product code data C' of the radio frequency identification tag attached to the product to be verified.

[0072] Step 202: Retrieve whether the chip identification data T' exists in the information system. If the retrieval result is existence, then judge whether the verified product code data C is consistent with the product code data C' of the product to be verified. If they are consistent, the conclusion of this step is that the verification passes; if the retrieval result is non-existence or the product code data is inconsistent, stop the risk assessment process and return an exception, indicating that the product may have a forgery risk.

[0073] Step 203: Execute the risk assessment function to obtain a pass or fail result. Specifically, if any of the following returns a pass, the conclusion of this step is a pass:

[0074] 3-1) If this is the first time this risk control assessment process is executed for the chip identification T, return a pass;

[0075] 3-2) If the difference between the current date and the date recorded when the anti-counterfeiting data verification was successful last time is less than the time threshold, return a pass, where the threshold is not greater than 48 hours;

[0076] 3-3) Generate a random number N in the range of [0,1]. If N is greater than the random risk control threshold, return a pass;

[0077] Specifically, the three steps in step 203 can be executed in parallel.

[0078] Step 204: Return the anti-counterfeiting risk assessment result. Specifically, if the conclusions of steps 202 to 203 are all passes, return a pass; otherwise, return a fail.

[0079] Furthermore, if the anti-counterfeiting risk assessment process fails, it means that the risk of reusing the radio frequency identification tag or chip cannot be excluded through the anti-counterfeiting risk assessment, and an anti-counterfeiting data verification process needs to be carried out, which specifically includes the following steps:

[0080] Step 301: Perform cryptographic calculations on the original product feature data P of the personalized physical features of the product retrieved from the information system using the chip identification data T (obtained in Step 103) to obtain a check code V'.

[0081] Step 302: Compare the check code V and the check code V'. If they are different, an error is reported.

[0082] Step 303: Use the original product feature data P to perform consistency verification on the personalized physical features of the product to be verified. If the verification fails, a prompt is given that there is a risk of forgery for the product.

[0083] Among them, the method for consistency verification of personalized physical features is the manual verification method or the computer automatic verification method.

[0084] The technical solution of the present invention is described in combination with specific implementation scenarios:

[0085] Example 1:

[0086] In this example, the anti-counterfeiting function of the product is realized based on the ordinary high-frequency radio frequency identification tag medium on the market, and it can be applied to the anti-counterfeiting and traceability scenarios of products such as liquor or cigarettes. It includes an anti-counterfeiting data establishment process, an anti-counterfeiting risk assessment process, and an anti-counterfeiting data verification process. The specific implementation process is as follows:

[0087] The anti-counterfeiting data establishment process includes:

[0088] 1) Use a high-frequency RFID reader / writer to collect the chip identification data of the radio frequency identification tag attached to the product, denoted as T;

[0089] 2) During packaging, based on the online coding system, spray-print unique product coding data on the surface of the product, and synchronously obtain the above data from the spray-printing control device, denoted as C;

[0090] 3) The personalized physical feature selected in this example is the microscopic personalized feature of the inkjet code dots of the product coding data C that is spray-printed on the bottle body, bottle cap, or cigarette carton in real time through an online inkjet coding device during the packaging stage of the wine bottle or cigarette. Because during the operation of the production line, the relative position between the inkjet head and the product is random, and the irregular shape or random placement of the product will cause the inkjet code dots formed by the same characters to have personalized features that are difficult to replicate.

[0091] Use an industrial camera to collect the high-definition image of the inkjet coding position of each product after inkjet coding, denoted as P.

[0092] 4) Using the authentication key K pre-configured or distributed by the information system, perform the following algorithm on P to obtain V = HMAC-Sha256(K, SHA256(P)).

[0093] 5) Save P to the file system, and record the storage path as F. Save T, C, F, and V to a relational database, such as a MySQL database, and set T and C as primary keys. Do not allow duplication. This completes the information association process.

[0094] The anti-counterfeiting risk assessment process includes:

[0095] 1) Obtain the chip identification data T' and product code data C' of the RFID tag attached to the product to be verified. The chip identification data is collected through the NFC interface of the mobile phone, and the product code data is collected through the mobile phone camera or manually entered by the user.

[0096] 2) Use T' to search the information system and check whether the data exists in the information system; if the search is successful, verify whether the retrieved product code data C is consistent with C'. If they are consistent, the conclusion of this step is passed. If the search fails or the retrieved product code data is inconsistent, stop the risk assessment process and return an exception.

[0097] 3) Execute the risk assessment function. If any item returns a pass, the conclusion of this step is a pass:

[0098] 3-1) If this is the first time that the chip ID T executes this risk control process, it returns passed;

[0099] 3-2) If the difference between the current date and the date recorded when the anti-counterfeiting data was last successfully verified is less than the threshold, the result is returned as passed; in this embodiment, the threshold is configured as 24 hours;

[0100] 3-3) Generate a random number N in the interval [0,1]. If N is greater than the random risk control threshold, return a pass. In this embodiment, the random risk control threshold is configured to be 0.8.

[0101] 4) If the conclusions of step 2 to step 3 are all passed, return passed; otherwise, return failed.

[0102] If the anti-counterfeiting risk assessment process fails, anti-counterfeiting data verification is required, including the following steps:

[0103] 1) Using the same authentication key K, calculate the original data P of the personalized physical characteristics of the product obtained by using T to retrieve the information system to obtain the verification code V'; compare V and V', and report an error if they are different;

[0104] 2) Prompt the user to obtain a high-definition image of the inkjet coding position through the mobile phone camera and transmit it to the verification system. Based on the pattern recognition method, identify the inkjet coding area in the image and crop it; then, after correcting and denoising the inkjet code dot image, detect the character boundaries and segment them by character; then calculate the similarity with each character image of the original data in sequence to obtain the similarity Si of each character. If the similarity Si of each character is higher than the threshold St, the verification passes. Otherwise, prompt that there may be a risk of chip reuse.

[0105] Example 2:

[0106] Now, the radio frequency identification tag medium provided by the present invention will be described. The radio frequency identification tag medium is used in conjunction with the method of the present invention for anti-counterfeiting and traceability scenarios of precious commodities such as commemorative coins and high-end tobacco and alcohol.

[0107] The radio frequency identification tag medium described in this embodiment, such as Figure 5 , from top to bottom, are the personalized physical feature layer 1, the adhesive layer 2, the chip inlay layer 3, the self-adhesive layer 4, and the release layer 5.

[0108] Such as Figure 5 , Figure 6 , Figure 7 shown, the personalized physical feature layer 1 is a paper-based material, and several fluorescent linear 211 and fluorescent circular 212 fluorescent anti-counterfeiting media are randomly embedded in part or all of its areas. Its surface includes a product code printing area 213 and a two-dimensional code pattern printing area 214. Under visible light, both the fluorescent linear and fluorescent circular anti-counterfeiting media are colorless; under ultraviolet light, such as Figure 7 , the fluorescent linear 221 and fluorescent circular 222 anti-counterfeiting media show red, and the product code printing area 223 and the two-dimensional code pattern printing area 224 show fluorescent patterns / ordinary patterns according to the actual printing medium. The paper-based material selected in this embodiment has a grammage of 60 grams.

[0109] The adhesive layer 2 is a water-based polyurethane resin.

[0110] The chip inlay layer 3 is a high-frequency radio frequency identification tag inlay with an easy-to-tear feature. In this embodiment, the chip inlay layer is copperplate paper with a grammage of 60 grams.

[0111] The self-adhesive layer 4 is acrylic latex, and the thickness of the adhesive layer is 15 - 30 um.

[0112] In this embodiment, a blank window without applying glue is provided in the self-adhesive layer 4. Such as Figure 8 , the self-adhesive layer 4 is divided into two areas, area 1 is the self-adhesive coverage area, and area 2 is the glue spraying area. Setting a spraying window in the self-adhesive layer 4 can simplify the automated pasting process, and at the same time reduce problems such as glue overflow after on-site glue spraying, and improve the label warping problem caused by uneven spraying.

[0113] The release layer 5 is a glassine paper coated with silicone oil, with a grammage of 65 grams.

[0114] In actual production and use, the chip inlay layer 3 is a high-frequency and / or ultra-high-frequency radio frequency identification electronic tag Inlay, and its substrate is easily tearable, including any one or a combination of the following materials: paper, fragile resin film, polyester film / polyolefin film using a flower knife and / or tear line process (for the purpose of achieving easy tearing).

[0115] Based on the radio frequency identification tag medium described in this embodiment, the specific implementation process of the commodity anti-counterfeiting method of the present invention includes an anti-counterfeiting data establishment process, an anti-counterfeiting risk assessment process, and anti-counterfeiting data verification. The specific implementation process is as follows:

[0116] The anti-counterfeiting data establishment process is jointly completed by the label medium manufacturer and the commodity manufacturer, including:

[0117] 1) The radio frequency identification tag medium manufacturer collects the chip identification data of each radio frequency identification tag, denoted as T.

[0118] 2) The radio frequency identification tag medium manufacturer prints the corresponding text and two-dimensional code in the commodity code printing area and the two-dimensional code pattern printing area of the label medium according to the commodity code data C provided by the commodity manufacturer.

[0119] 3) The selected personalized physical feature in this embodiment is the position and shape information of the random fluorescent medium embedded in the personalized physical feature layer of the label medium. The radio frequency identification tag medium manufacturer is responsible for collecting the high-definition image of the personalized physical feature layer, denoted as P.

[0120] 4) The radio frequency identification tag medium manufacturer uses the authentication key K provided by the commodity manufacturer and performs the following algorithm on P to obtain V = HMAC-Sha256(K, SHA256(P)).

[0121] 5) The radio frequency identification tag medium manufacturer provides T, C, F, and V to the commodity manufacturer. The commodity manufacturer sprays reactive polyurethane in the non-adhesive blank window area of each radio frequency identification tag medium through an automatic pasting device on the packaging production line, then pastes it on the commodity surface, collects the chip identification data T of the pasted radio frequency identification tag, and saves the corresponding C, F, and V data into the information system of the commodity manufacturer.

[0122] In the anti-counterfeiting risk assessment process, it includes:

[0123] 1) Obtain the chip identification data T' and commodity code data C' of the radio frequency identification tag attached to the commodity to be verified. The chip identification data is collected through the mobile phone NFC interface, and the commodity code data is collected through the mobile phone camera or manually input by the user.

[0124] 2) Use T to retrieve the information system and check whether the data exists in the information system; if the retrieval is successful, verify whether the retrieved product code data C is consistent with C'. If they are consistent, the conclusion of this step is passed. If the retrieval fails or the retrieved product code data is inconsistent, stop the risk assessment process and return an exception.

[0125] 3) Execute the following risk assessment functions. If any one returns passed, the conclusion of this step is passed:

[0126] 3-1) If this is the first execution of this risk control process for the chip identifier T, return passed;

[0127] 3-2) If the difference between the current date and the date recorded at the time of the last successful anti-counterfeiting data verification is less than the threshold, return passed; in this embodiment, the threshold is configured as 48 hours;

[0128] 3-3) Generate a random number N in the range of [0,1]. If N is greater than the random risk control threshold, return passed; in this embodiment, the random risk control threshold is configured as 0.9;

[0129] 4) If the conclusions of steps 2 to 3 are all passed, return passed; otherwise, return not passed.

[0130] If the anti-counterfeiting risk assessment process fails, anti-counterfeiting data verification is required, including the following steps:

[0131] 1) Use the same authentication key K to calculate the original data P of the product's personalized physical characteristics retrieved from the information system using T to obtain the verification code V'; compare V and V'. If they are different, report an error;

[0132] 2) Retrieve the personalized physical characteristics data P associated with T from the information system. The personalized physical characteristics data P in this embodiment is the image of the personalized physical characteristics layer of the label medium (including but not limited to: the color and / or distribution position and / or shape and / or texture characteristics of the fluorescent medium). Present the image P to the user, and let the user compare it with the label medium pasted on the surface of the product. If they are consistent, the anti-counterfeiting data verification is passed. Otherwise, prompt that there may be a risk of forgery for the product.

[0133] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A commodity anti-counterfeiting method, characterized in that, It includes an anti-counterfeiting data establishment process, an anti-counterfeiting risk assessment process, and an anti-counterfeiting data verification process; The anti-counterfeiting data establishment process includes the following steps: 1) Collect the chip identification data T of the radio frequency identification tag attached to the commodity, and the chip identification data T is generated by the radio frequency identification tag supplier; 2) Collect the commodity coding data C printed on the commodity, including a combination of any one or more of the following data: batch number, production date, serial number, logistics code; 3) Select at least one personalized physical feature of the commodity itself or the attachment on the commodity, and at least be able to collect the original commodity feature data including weight data through a combination of any one or more of the following collection methods to obtain the original commodity feature data P; wherein, the collection methods at least include photographing, recording, video recording, weighing, length measurement, thickness measurement methods; wherein, when the radio frequency identification tag attached to the commodity is a radio frequency identification tag containing a fluorescent anti-counterfeiting medium, the personalized physical feature is the fluorescent anti-counterfeiting medium feature in the personalized physical feature layer of this radio frequency identification tag; 4) Calculate the check code for the original commodity feature data P to obtain the check code V, and the data integrity of the original commodity feature data P can be verified through the check code V; 5) Save the chip identification data T, the commodity coding data C, the original commodity feature data P, and the check code V into the information system for association to obtain the anti-counterfeiting data, and relevant data can be retrieved through the chip identification data T later; wherein, the association method is to save the relevant data into a table in a relational database and establish an index; The anti-counterfeiting risk assessment process includes the following steps: 1) Obtain the chip identification data T' and the commodity coding data C' of the radio frequency identification tag attached to the commodity to be verified; 2) Retrieve whether the chip identification data T' exists in the information system. If the retrieval result is that it exists, then judge whether the retrieved commodity coding data C is consistent with the commodity coding data C' of the commodity to be verified. If it is consistent, the conclusion of this step is passed; if the retrieval result is that it does not exist or the commodity coding data is inconsistent, stop the anti-counterfeiting risk assessment process and return an exception, indicating that the commodity has a risk of forgery; 3) Execute the risk assessment function. If any one of the following returns passed, the conclusion of this step is passed: 3-1) If this is the first time this chip identification T executes this risk control assessment process, return passed; 3-2) If the difference between the current date and the date recorded when the last anti-counterfeiting data verification was successful is less than the time threshold, return passed, where the threshold is not greater than 48 hours; 3-3) Generate a random number N in the range of [0,1]. If N is greater than the random risk control threshold, return passed; 4) If the conclusions of steps 2) to 3) are all passed, the conclusion of the anti-counterfeiting risk assessment process is passed, and the anti-counterfeiting data verification process will no longer be carried out; otherwise, the conclusion of the anti-counterfeiting risk assessment is not passed, and the anti-counterfeiting data verification process must be carried out; If the conclusion of the anti-counterfeiting risk assessment process is not passed, then the anti-counterfeiting data verification process is carried out, including the following steps: 1) Perform cryptographic calculations on the original product feature data P of the personalized physical features of the product retrieved from the information system using the chip identification data T to obtain the check code V'. Compare the check code V and the check code V'. If they are different, an error is reported, indicating that the original data P has been tampered with, and a data error is prompted. 2) Use the original product feature data P to perform consistency verification on the personalized physical features on the product to be verified. If the verification fails, a risk of forgery of the product is prompted, where the personalized physical features include the product weight.

2. The method according to claim 1, wherein The personalized physical features on the product or the attachment include one or more of the following combinations, including: 1) Artificially designed features, including at least security threads, random fibers, fluorescent spots, magnetic data, anti-counterfeiting additives, or anti-counterfeiting patterns; 2) Microscopic features formed by the process randomness during processing, including inkjet code dot features, intaglio and offset printing texture features, holographic phase features; 3) Naturally formed features, including the natural texture of the material itself and the precise quality of the product.

3. The method according to claim 1, wherein The algorithm for generating the check code V of the physical feature original data P is: V = MAC message authentication code algorithm; where the hash algorithm can be selected from SM3 or SHA, and the MAC message authentication code algorithm can be selected from at least HMAC or CMAC; the length of the check code is no more than 32 bytes. If the application system has restrictions on the length of the check code, the check code generated by the above algorithm is truncated as required.

4. The method according to any one of claims 1 to 3, characterized in that The method for consistency verification of personalized physical features is manual verification or computer automatic verification.

5. A radio frequency identification tag medium applicable to the commodity anti-counterfeiting method described in any one of claims 1-4, characterized in that, Including: Personalized physical feature layer, adhesive layer, chip inlay layer; The material of the personalized physical feature layer is a paper-based material, and several fluorescent disc-shaped and / or fluorescent linear and / or fluorescent polygonal fluorescent anti-counterfeiting media are randomly embedded in part or all of its areas. Patterns or texts can be printed on its surface as needed, but it should be ensured that the fluorescent anti-counterfeiting media is still clearly visible after printing. The chip inlay layer is a high-frequency and / or ultra-high-frequency radio frequency identification electronic tag Inlay, and its substrate is easily tearable, including any one or more combinations of the following materials: paper, fragile resin film, polyester film / polyolefin film using die-cutting and / or tear line processes; The adhesive layer is used to bond the personalized physical feature layer and the chip inlay layer.

6. The radio frequency identification tag medium according to claim 5, wherein It also includes an adhesive layer and a release layer.

7. The radio frequency identification tag medium according to claim 6, characterized in that, The adhesive layer includes a blank window, which is used to spray a reactive glue before pasting to form a more reliable and irreversible pasting effect, increasing the difficulty of peeling the radio frequency identification tag from the product without damage.

8. The radio frequency identification tag medium according to claim 5, wherein The paper basis weight of the personalized physical feature layer is not higher than 90 grams, and the paper basis weight is between 30 grams and 70 grams.

9. The radio frequency identification tag medium according to claim 5, wherein The fluorescent material added to the personalized physical feature layer is colorless under visible light and presents a single color or multiple different colors under ultraviolet light.

10. The radio frequency identification tag medium according to claim 5, characterized in that, The personalized physical feature layer will be spray-printed with product coding data before pasting.

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