CN114037035A - Encrypted label anti-counterfeiting method based on magnetic image - Google Patents
Encrypted label anti-counterfeiting method based on magnetic image Download PDFInfo
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- CN114037035A CN114037035A CN202111306097.5A CN202111306097A CN114037035A CN 114037035 A CN114037035 A CN 114037035A CN 202111306097 A CN202111306097 A CN 202111306097A CN 114037035 A CN114037035 A CN 114037035A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001914 filtration Methods 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 238000007641 inkjet printing Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000013519 translation Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- 238000005507 spraying Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06187—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with magnetically detectable marking
- G06K19/06196—Constructional details
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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Abstract
The invention discloses an encrypted label anti-counterfeiting method based on a magnetic image, which realizes label anti-counterfeiting by adopting an encrypted two-dimensional code generated based on unique magnetic image coding, generates a public key and private key pair based on an asymmetric encryption key generation algorithm, encrypts a unique article image and specific information by using a public key, forms a two-dimensional code aiming at encrypted ciphertext information, and takes the private key as a decryption key to restore hidden information of the two-dimensional code.
Description
Technical Field
The invention relates to the technical field of image anti-counterfeiting, in particular to an encryption label anti-counterfeiting method based on a magnetic image.
Background
At present, most of anti-counterfeiting labels on the market adopt a single anti-counterfeiting means, such as laser holographic anti-counterfeiting, printing anti-counterfeiting, ink anti-counterfeiting, bar code anti-counterfeiting and other technologies, so that the anti-counterfeiting labels have the problems of insufficient anti-counterfeiting capability and easy counterfeiting, but the problem can be effectively solved if a magnetic image detection technology is applied to the anti-counterfeiting labels.
Therefore, how to improve the anti-counterfeiting capability of the label is a problem that needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of the above, the invention provides an encryption label anti-counterfeiting method based on a magnetic image, which adopts a magnetic image detection technology, utilizes the characteristics of more contained information and rapid identification of a two-dimensional code, combines an encryption technology, forms a novel combined anti-counterfeiting technology, is not only beneficial to preventing food safety accidents, but also provides a novel method for the anti-counterfeiting industry.
In order to achieve the purpose, the invention adopts the following technical scheme:
an encryption label anti-counterfeiting method based on magnetic images comprises the following steps:
step 1: creating an original magnetic image, and converting the original magnetic image into a character string format to obtain original magnetic image information;
step 2: extracting magnetic characteristic information parameters from the original magnetic image information;
and step 3: carrying out data processing and encoding on the magnetic characteristic information parameters to obtain magnetic characteristic random numbers;
and 4, step 4: the magnetic characteristic random number is used as a private key password to generate a public and private key pair; the private key password encrypts a private key in the public and private key pair;
and 5: a public key in the public-private key pair encrypts the original magnetic image information by adopting an encryption algorithm to obtain a ciphertext, an encrypted two-dimensional code is generated according to the ciphertext, and the encrypted two-dimensional code is used for manufacturing an anti-counterfeiting label; adding the encrypted two-dimensional code into an anti-counterfeiting label to realize label anti-counterfeiting based on the magnetic image;
step 6: and acquiring label information by adopting a magnetic image acquisition device, decrypting the label information by utilizing the private key to obtain a decrypted image, and comparing the decrypted image with the original magnetic image hidden by the anti-counterfeiting label to realize anti-counterfeiting identification.
Preferably, the magnetic characteristic parameter data processing in step 3 includes translation and rotation.
Preferably, the original magnetic image is a BMP map.
Preferably, the tag reading device is provided with a magnetic detection device and a private key; the magnetic detection device collects the encrypted two-dimensional code information, decrypts and restores a magnetic image hidden by the encrypted two-dimensional code by using the private key, and compares the magnetic image with an original magnetic image to judge whether the label is a genuine product.
Preferably, the encryption algorithm adopts an RSA algorithm, and the encryption and decryption of data are realized by the public-private key pair, where the public key PK { e, n } is used for encryption and the private key SK { d, n } is used for decryption.
Preferably, the magnetic image acquisition device comprises a magnetic head module, an amplification circuit board, an STM32 singlechip and an interface; a TMR sensor is arranged in the magnetic head module and connected with the amplifying circuit board, the amplifying circuit board is connected with the STM32 single chip microcomputer, the STM32 single chip microcomputer is connected with an interface, and the interface is connected with a power supply and a PC (personal computer); and an AD converter is arranged in the STM32 single chip microcomputer.
Preferably, the label processing system comprises a key pair generation module, an information encryption module, a two-dimensional code generation module, an information input module and an ink jet printing information interface module; the key pair generation module generates a public and private key pair according to the magnetic characteristic random number; the information encryption module uses the magnetic characteristic random number as the private key password to encrypt a private key in the public and private key pair, and a public key in the public and private key pair encrypts the original magnetic image information by adopting an encryption algorithm to obtain a ciphertext; the information input module receives article related information; the two-dimensional code generating module generates an encrypted two-dimensional code according to the ciphertext and the article related information; and the ink jet printing information interface module transmits the encrypted two-dimensional code to an ink jet system to manufacture an anti-counterfeit label.
Preferably, the interface is provided with a filtering module for filtering power supplied by the power supply.
Preferably, the magnetic head module adopts a bridge circuit to output signals, a capacitance filtering unit is arranged, and soft magnetic signals collected by the TMR sensor are filtered by the capacitance filtering unit and then output to the amplifying circuit board through the bridge circuit.
Preferably, the anti-counterfeit label sequentially comprises a protective layer, an encrypted two-dimensional code layer, a magnetic ink layer, an adhesive layer and a substrate from top to bottom; and the encrypted two-dimensional code layer is sprayed with the encrypted two-dimensional code.
According to the technical scheme, compared with the prior art, the anti-counterfeiting method for the encrypted label based on the magnetic image is disclosed, the label anti-counterfeiting is realized by adopting the encrypted two-dimensional code generated based on the unique magnetic image code, the public key and private key pair is generated based on the asymmetric encryption key generation algorithm, the unique article magnetic image and the specific information of the article are encrypted by utilizing the public key, and the two-dimensional code is formed according to the encrypted ciphertext information. The private key is used as a decryption key to restore the hidden information of the two-dimensional code. The grain authenticity can be identified by comparing the images through the designed magnetic image acquisition device. The encrypted label anti-counterfeiting method and device based on the magnetic image can accurately acquire the magnetic signal of the magnetic label and realize label anti-counterfeiting.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of a head module according to the present invention;
FIG. 2 is a schematic structural diagram of an anti-counterfeit label provided by the present invention;
fig. 3 is a schematic diagram of a circuit structure of the amplifying circuit board provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses an encryption label anti-counterfeiting method based on a magnetic image, which comprises the following steps:
s1: creating an original magnetic image, and converting the original magnetic image into a character string format to obtain original magnetic image information;
s2: extracting magnetic characteristic information parameters from original magnetic image information;
s3: carrying out data processing and encoding on the magnetic characteristic information parameters to obtain magnetic characteristic random numbers;
s4: the magnetic characteristic random number is used as a private key password to generate a public and private key pair; the private key password encrypts a private key in the public and private key pair;
s5: encrypting the original magnetic image information by a public key in the public-private key pair by adopting an encryption algorithm to obtain a ciphertext, generating an encrypted two-dimensional code according to the ciphertext, and manufacturing the anti-counterfeiting label 2 by using the encrypted two-dimensional code; adding the encrypted two-dimensional code into the anti-counterfeiting label 2 to realize label anti-counterfeiting based on the magnetic image;
s6: and acquiring the label information by adopting a magnetic image acquisition device, decrypting the label information by utilizing a private key to obtain a decrypted image, and comparing the decrypted image with the original magnetic image hidden by the anti-counterfeiting label 2 to realize anti-counterfeiting identification.
In order to further optimize the above technical solution, the magnetic characteristic parameter data processing in S3 includes translation and rotation.
In order to further optimize the technical scheme, the original magnetic image is a BMP (bone map) image.
In order to further optimize the technical scheme, the label reading device is provided with a magnetic detection device and a private key; the magnetic detection device collects the encrypted two-dimensional code information, decrypts and restores the magnetic image hidden by the encrypted two-dimensional code by using a private key, and compares the magnetic image with the original magnetic image to judge whether the label is a genuine product.
In order to further optimize the technical scheme, the encryption algorithm adopts an RSA algorithm, data encryption and decryption are realized through a public-private key pair, a public key PK ═ { e, n } is used for encryption, and a private key SK { d, n } is used for decryption. Regarding an RSA encryption algorithm, C + + is adopted to call an openssl library, the magnetic image encryption is realized in three steps, and the first step is as follows: generating a public and private key pair; calling RSA _ generate _ key and RSA _ generate _ key _ ex functions to generate RSA keys, calling RSA _ print _ fp printing key information to generate RSA encryption key pairs; the second step is that: private key conversion; calling a PEM _ write _ bio _ PKCS8PrivateKey function to convert the private key into a PEM format with password protection and recording a corresponding public key, wherein the password is a magnetic characteristic random number; a third part: encryption and decryption; the method comprises the steps of creating a text File in a directory by adopting an openssl tool, defining a previously generated public and private key pair through OPENNSLKEY' test.
In order to further optimize the technical scheme, the magnetic image acquisition device comprises a magnetic head module 1, an amplifying circuit board, an STM32 single chip microcomputer and an interface; a TMR sensor is arranged in the magnetic head module 1 and connected with an amplifying circuit board, the amplifying circuit board is connected with an STM32 single chip microcomputer, an STM32 single chip microcomputer is connected with an interface, and the interface is connected with a power supply and a PC; an AD converter is arranged in the STM32 singlechip.
In order to further optimize the above technical solution, the circuit structure of the amplifying circuit board includes a TMR sensor access module, a signal amplifying module, a voltage regulating module and an output module as shown in fig. 3; the voltage regulation module regulates the reference voltage to within 1.5% of the error.
In order to further optimize the technical scheme, the label processing system comprises a key pair generation module, an information encryption module, a two-dimensional code generation module, an information input module and an ink jet printing information interface module; the key pair generation module generates a public and private key pair according to the magnetic characteristic random number; the information encryption module encrypts a private key in a public-private key pair by taking the magnetic characteristic random number as a private key password, and a public key in the public-private key pair encrypts original magnetic image information by adopting an encryption algorithm to obtain a ciphertext; the information input module receives article related information; the two-dimensional code generation module generates an encrypted two-dimensional code according to the ciphertext and the article related information; the ink jet printing information interface module transmits the encrypted two-dimensional code to an ink jet system to manufacture the anti-counterfeit label.
In order to further optimize the technical scheme, the interface is provided with a filtering module for filtering power supplied by the power supply.
In order to further optimize the technical scheme, the magnetic head module 1 adopts a bridge circuit to output signals, a capacitance filtering unit is arranged, and soft magnetic signals collected by the TMR sensor are output to an amplifying circuit board by the bridge circuit after being filtered by the capacitance filtering unit.
In order to further optimize the technical scheme, the anti-counterfeit label 2 sequentially comprises a protective layer, an encrypted two-dimensional code layer, a magnetic ink layer, an adhesive layer and a substrate from top to bottom; and spraying the encrypted two-dimensional code layer to encrypt the two-dimensional code.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An encryption label anti-counterfeiting method based on magnetic images is characterized by comprising the following steps:
step 1: creating an original magnetic image, and converting the original magnetic image into a character string format to obtain original magnetic image information;
step 2: extracting magnetic characteristic information parameters from the original magnetic image information;
and step 3: carrying out data processing and encoding on the magnetic characteristic information parameters to obtain magnetic characteristic random numbers;
and 4, step 4: the magnetic characteristic random number is used as a private key password to generate a public and private key pair; the private key password encrypts a private key in the public and private key pair;
and 5: a public key in the public-private key pair encrypts the original magnetic image information by adopting an encryption algorithm to obtain a ciphertext, an encrypted two-dimensional code is generated according to the ciphertext, and the encrypted two-dimensional code is used for manufacturing an anti-counterfeiting label;
step 6: and acquiring label information by adopting a magnetic image acquisition device, decrypting the label information by utilizing the private key to obtain a decrypted image, and comparing the decrypted image with the original magnetic image hidden by the anti-counterfeiting label to realize anti-counterfeiting identification.
2. The magnetic image-based encryption label anti-counterfeiting method according to claim 1, wherein the magnetic characteristic parameter data processing in the step 3 comprises translation and rotation.
3. The magnetic image-based encrypted label anti-counterfeiting method according to claim 1, wherein the label reading device is provided with a magnetic detection device and a private key; the magnetic detection device collects the encrypted two-dimensional code information, decrypts and restores a magnetic image hidden by the encrypted two-dimensional code by using the private key, and compares the magnetic image with an original magnetic image to judge whether the label is a genuine product.
4. The magnetic image-based encryption label anti-counterfeiting method according to claim 1, wherein the encryption algorithm adopts RSA algorithm, data encryption and decryption are realized through the public-private key pair, a public key PK { e, n } is used for encryption, and a private key SK { d, n } is used for decryption.
5. The magnetic image-based encryption label anti-counterfeiting method according to claim 1, wherein the magnetic image acquisition device comprises a magnetic head module, an amplification circuit board, an STM32 single chip microcomputer and an interface; a TMR sensor is arranged in the magnetic head module and connected with the amplifying circuit board, the amplifying circuit board is connected with the STM32 single chip microcomputer, the STM32 single chip microcomputer is connected with an interface, and the interface is connected with a power supply and a PC (personal computer); and an AD converter is arranged in the STM32 single chip microcomputer.
6. The magnetic image-based encrypted label anti-counterfeiting method according to claim 1, wherein the label processing system comprises a key pair generation module, an information encryption module, a two-dimensional code generation module, an information entry module and an ink-jet printing information interface module; the key pair generation module generates a public and private key pair according to the magnetic characteristic random number; the information encryption module uses the magnetic characteristic random number as the private key password to encrypt a private key in the public and private key pair, and a public key in the public and private key pair encrypts the original magnetic image information by adopting an encryption algorithm to obtain a ciphertext; the information input module receives article related information; the two-dimensional code generating module generates an encrypted two-dimensional code according to the ciphertext and the article related information; and the ink jet printing information interface module transmits the encrypted two-dimensional code to an ink jet system to manufacture an anti-counterfeit label.
7. The magnetic image-based encryption label anti-counterfeiting method according to claim 5, wherein the interface is provided with a filtering module for filtering power supplied by a power supply.
8. The magnetic image-based encryption label anti-counterfeiting method according to claim 5, wherein the magnetic head module adopts a bridge circuit to output signals, a capacitive filtering unit is arranged, and the soft magnetic signals collected by the TMR sensor are filtered by the capacitive filtering unit and then output to the amplifying circuit board by the bridge circuit.
9. The magnetic image-based encrypted label anti-counterfeiting method according to claim 1, wherein the anti-counterfeiting label comprises a protective layer, an encrypted two-dimensional code layer, a magnetic ink layer, an adhesive layer and a substrate in sequence from top to bottom; and the encrypted two-dimensional code layer is sprayed with the encrypted two-dimensional code.
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| CN202111306097.5A CN114037035B (en) | 2021-11-05 | 2021-11-05 | Encryption tag anti-counterfeiting method based on magnetic image |
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| CN202111306097.5A CN114037035B (en) | 2021-11-05 | 2021-11-05 | Encryption tag anti-counterfeiting method based on magnetic image |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114979474A (en) * | 2022-05-16 | 2022-08-30 | 青岛崂应海纳光电环保集团有限公司 | Anti-counterfeiting photo generation method, anti-counterfeiting verification method, system, device and storage medium |
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| CN102932148A (en) * | 2012-10-25 | 2013-02-13 | 成都市易恒信科技有限公司 | System and method for preventing safety two-dimensional code counterfeiting on basis of combination of public key (CPK) authentication |
| CN103020684A (en) * | 2012-12-07 | 2013-04-03 | 北京印刷学院 | Anti-counterfeiting device, anti-counterfeiting recognition device and system for commodity packaging |
| CN103034884A (en) * | 2012-12-07 | 2013-04-10 | 北京印刷学院 | Commodity packaging anti-fake device and device and system for anti-fake recognition with built-in secret key |
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- 2021-11-05 CN CN202111306097.5A patent/CN114037035B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102932148A (en) * | 2012-10-25 | 2013-02-13 | 成都市易恒信科技有限公司 | System and method for preventing safety two-dimensional code counterfeiting on basis of combination of public key (CPK) authentication |
| CN103020684A (en) * | 2012-12-07 | 2013-04-03 | 北京印刷学院 | Anti-counterfeiting device, anti-counterfeiting recognition device and system for commodity packaging |
| CN103034884A (en) * | 2012-12-07 | 2013-04-10 | 北京印刷学院 | Commodity packaging anti-fake device and device and system for anti-fake recognition with built-in secret key |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114979474A (en) * | 2022-05-16 | 2022-08-30 | 青岛崂应海纳光电环保集团有限公司 | Anti-counterfeiting photo generation method, anti-counterfeiting verification method, system, device and storage medium |
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