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A two-dimensional code anti-counterfeiting method for multiple information encryption
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A technology of information encryption and two-dimensional code, which is applied in the field of QR two-dimensional code anti-counterfeiting, can solve the problems of harming the interests of consumers and genuine product manufacturers, being easy to be copied and imitated, and not easy for consumers or merchants.
Active Publication Date: 2016-07-06
OCEANIA PRINTING SHENZHEN CO LTD
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[0003] The purpose of the present invention is to address the deficiencies of the prior art and provide a two-dimensional code anti-counterfeiting method with multiple information encryption, aiming at solving the problem that the QR two-dimensional code is easy to be copied and copied when used as a label in the process of commodity circulation, and the It is not easy for consumers or merchants to identify its authenticity with eyes, which will damage the interests of consumers and manufacturers of authentic products.
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Embodiment 1
[0073] Step 1. Generation of QR code and encryption of original information:
[0074] 1.1 Use the two-dimensional code generation system to generate a QR code 111 for "HangzhouDianziUniversity" (the generated QR code is a square image, and the image mode is an RGB image), and the image size is 200×200dpi;
[0075] 1.2 Use "201309111403" as the serial number to be encrypted, use the encryption program made by the programming software according to the specific algorithm encryption rules to encrypt the serial number, and obtain the encrypted serial number "#wVOKMPE";
[0076] 1.3 Take a screenshot of the encrypted serial number generated in 1.2, obtain a picture 112 containing the wording of the encrypted serial number, and save the picture as an image to be encrypted;
[0077] Step 2. Preprocessing of images to be encrypted:
[0078] 2.1 The image 112 containing the encrypted serial number is subjected to image scaling transformation to obtain an image of the same size as the Q...
Embodiment 2
[0100] Step 1. Generation of QR code and encryption of original information:
[0101] 1.1 Use the two-dimensional code generation system to generate a QR two-dimensional code 211 for "School of Mechanical Engineering" with an image size of 128×128dpi;
[0102] 1.2 Use "00370904114522031" as the encrypted serial number, use the encryption program made by programming software according to specific algorithm encryption rules to encrypt the serial number, and obtain the encrypted serial number "*vAD719142O53U32";
[0103] 1.3 Take a screenshot of the encrypted serial number generated in 1.2, obtain a picture 212 containing the words of the encrypted serial number, and save the picture as an image to be encrypted;
[0104] Step 2. Preprocessing of images to be encrypted:
[0105] 2.1 The image 212 containing the encrypted serial number is subjected to image scaling transformation to obtain an image of the same size as the QR two-dimensional code 211;
[0106] 2.2 Perform image gr...
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Abstract
The invention relates to a two-dimensional code anti-counterfeiting method for multiple information encryption, which is to obtain an image containing the encrypted serial number by encrypting the digital serial number through an algorithm to generate an encrypted serial number, and then take a screenshot of the image containing the encrypted serial number. Size adjustment, image grayscale and image scrambling process to obtain the secret image, and then use the two-dimensional code as the carrier, use the bit operation method to embed the secret image into the carrier two-dimensional code image, and finally obtain the mixed two-dimensional code for printing ; When verifying information, extract the secret image in the two-dimensional code and perform anti-scrambling processing to obtain the encrypted serial number, and then use the decryption algorithm to obtain the decrypted serial number. By comparing with the original serial number, the authenticity of the information can be identified. fake. The method combines simple information algorithm encryption, image transformation and image hiding methods to realize two-dimensional code anti-counterfeiting, the method is easy to implement, does not affect the information capacity of the two-dimensional code, and has good anti-counterfeiting performance.
Description
technical field [0001] The invention relates to a two-dimensional code anti-counterfeiting method for multiple information encryption, in particular to a QR two-dimensional code anti-counterfeiting method. Background technique [0002] QR two-dimensional code has been widely used as a carrier of information dissemination in today's society. While QR two-dimensional code is for people to carry out information dissemination and product promotion, due to the limitations of its own anti-counterfeiting performance, especially with the development of computer and printing reproduction technology, information reproduction has become more and more simple and convenient. . For some information with high commercial value, counterfeiting or even flooding occurs. Especially in the process of product circulation, unscrupulous manufacturers forge the packaging of genuine products, shoddy the real ones, and shoddy them, which not only damages the interests of genuine manufacturers and hi...
Claims
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