Anti-forgery two-dimensional code and generation and identification method thereof

An identification method and two-dimensional code technology, applied in the field of anti-counterfeiting two-dimensional code and its generation and identification, can solve the problems of high quality requirements of mobile phones, failure of anti-counterfeiting function, inability to decrypt, etc., to achieve high anti-counterfeiting reliability, improve Safety, cost reduction effect

Active Publication Date: 2018-12-07
NANJING FORESTRY UNIV
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Problems solved by technology

[0007] The Chinese invention patent application with the publication number CN107944526A discloses an anti-tampering and anti-copying two-dimensional code anti-counterfeiting method. The ciphertext image is scrambled by encryption to generate the secondary code of the two-dimensional code. On the one hand, it cannot be decrypted without a key The ciphertext of this sub-code realiz

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  • Anti-forgery two-dimensional code and generation and identification method thereof
  • Anti-forgery two-dimensional code and generation and identification method thereof
  • Anti-forgery two-dimensional code and generation and identification method thereof

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Embodiment Construction

[0055] This embodiment provides an anti-counterfeiting two-dimensional code, which includes a two-dimensional code pattern generated from data code information, and the two-dimensional code pattern includes an error correction code area.

[0056] The data code information includes encrypted data code information and unencrypted data code information. In this embodiment, the unencrypted data code information is "Nanjing Forestry University", and the encrypted data code information is to use the AES encryption algorithm to encrypt the anti-counterfeiting information "123456". The encrypted data code information is obtained as ""1tq864840iixrKCzPLYtnA==", the encrypted data code information and the unencrypted data code information are linked through the connection symbol "? ? :", the complete data code information is "Nanjing Forestry University? ? :1tq864840iixrKCzPLYtnA==”.

[0057] The error correction code area also includes a scrambled pattern, which is obtained through ...

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Abstract

The invention discloses an anti-forgery two-dimensional code and a generation and identification method thereof, relating to the technical field of two-dimensional code anti-forgery. The anti-forgerytwo-dimensional code includes a two-dimensional code graph generated by data code information. Through chaotic encryption, the generated two-dimensional code graph includes a scrambling graph used forrealizing two-dimensional code anti-forgery. The generation method of an anti-forgery two-dimensional code includes the steps of setting data code information, scrambling an error correction code graph, etc. The identification method of an anti-forgery two-dimensional code includes the steps of scanning a two-dimensional code graph, obtaining encrypted data code information, and obtaining a scrambled and restored error correction code graph through the encrypted data code information, wherein the scrambled and restored error correction code graph is used for identifying the authenticity of the scanned two-dimensional code. Without changing original information of a two-dimensional code, the method enables a graph in a certain area of the two-dimensional code to be scrambled, thereby improving security of two-dimensional code anti-forgery. Moreover, high printing and scanning quality is not needed for code matching.

Description

technical field [0001] The invention belongs to the technical field of two-dimensional code anti-counterfeiting, and in particular relates to an anti-counterfeiting two-dimensional code and a method for generating and identifying the same. Background technique [0002] The two-dimensional code graphs information such as numbers, symbols, and even text in specific rules according to the coding rules, and can automatically read the information through image input devices or photoelectric scanning devices. The two-dimensional code has high encoding density and large information capacity, which can accommodate up to 1850 letters or 2710 numbers or 1108 bytes or more than 500 Chinese characters, and can even encode images, audio and biological information (such as fingerprints). In addition, the two-dimensional code has strong fault tolerance, and can correctly read the two-dimensional code information of pollution, damage, and partial occlusion. Most importantly, QR codes are e...

Claims

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Application Information

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IPC IPC(8): G06K19/06
CPCG06K19/06037G06K19/06046
Inventor 谢德红于俊彦胡健安
Owner NANJING FORESTRY UNIV
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