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A method for batch generation of commodity anti-counterfeiting two-dimensional codes

A technology of two-dimensional codes and commodities, which is applied in the field of batch generation of commodity anti-counterfeiting two-dimensional codes. Safe, not easy to crack, simple and feasible batch generation method

Active Publication Date: 2022-04-05
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing digital anti-counterfeiting technology basically uses a pseudo-random sequence or an ordered serial number to generate a commodity anti-counterfeiting code through DES symmetric encryption, which has certain differences with the performance requirements of the commodity anti-counterfeiting code "unforgeability and uniqueness" in digital anti-counterfeiting technology. Due to the gap, some products using digital anti-counterfeiting technology will still be used by criminals. Such counterfeit products are easily mistaken by consumers as genuine products; most of the existing anti-counterfeiting code generation methods are proposed for a single product. The anti-counterfeiting code generation algorithm is relatively complicated in operation, and does not consider the safety and operational efficiency of generating anti-counterfeiting codes between a certain batch of commodities or between batches of commodities, so it is difficult to apply it in the actual production of batch commodities; at the same time, with the intelligent With the popularization of mobile phones and the increasing application of QR codes, commodity anti-counterfeiting QR codes are gradually welcomed by users due to their large amount of information and convenient anti-counterfeiting queries.

Method used

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  • A method for batch generation of commodity anti-counterfeiting two-dimensional codes
  • A method for batch generation of commodity anti-counterfeiting two-dimensional codes
  • A method for batch generation of commodity anti-counterfeiting two-dimensional codes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] According to the batch generation method of product anti-counterfeiting codes above, the steps are as follows:

[0101] (1) When the batch commodity ID code of a certain batch of commodities is coded as S=“AB789 / ef12 2018-08-011234ab12” and the length L=30, set the production serial number numerical sequence B of this batch of commodities at the same time={0,1,2 ,3...999998,999999}, where each element starts from 0 and increases by 1, and its length K=10 6 ;

[0102] (2) Each character S of the bulk product ID code S k Respectively converted into ASCII code numerical data P k , get the numerical sequence P={65,66,55,56,57,47,101,102,49,50,32,50,48,49,56,45,48,56,45,48,49,32,49,50 ,51,52,97,98,49,50}, and then calculate the numerical data according to the following formula and switch data SK:

[0103]

[0104] SK=mod(sum(P),3)=mod(1702,3)=1

[0105] resulting in a sequence of values And switching data SK=1;

[0106] (3) Encryption of the batch commodity ID...

Embodiment 2

[0134] According to the above method for batch generation of anti-counterfeit two-dimensional codes of commodities, the batch generation steps of the key and its anti-counterfeit two-dimensional codes are similar to those in Embodiment 1, only the identity codes of the batch commodities are slightly changed (such as "AB789 / ef12 2018-08-01 1234ab11" , "AB789\ef12 2018-08-01 1234ab12" and "AC789 / ef12 2018-08-01 1234ab12"), where when the bulk commodity ID code is "AC789 / ef12 2018-08-01 1234ab12", the reverse replacement encryption is used Operation initial value and The results of the anti-counterfeit number and anti-counterfeit QR code for a single product are shown in Table 4. It can be seen from Table 4 that a slight change in the ID code of a batch of commodities will cause a great change in the anti-counterfeiting number of the commodity and the anti-counterfeiting two-dimensional code of the commodity, so it can be seen that a method for batch generation of the anti-cou...

Embodiment 3

[0140]According to the batch generation method of commodity anti-counterfeiting two-dimensional codes, the batch generation steps of batch commodity identity codes and anti-counterfeiting two-dimensional codes are similar to the specific embodiment 2, only a certain key changes slightly: α=-0.123450000000001; or β=4; or γ=-0.234560000000001; or η=3; or or or or The generation results of product anti-counterfeiting number and anti-counterfeiting QR code are shown in Table 5. It can be seen from the table below that once the key changes even slightly, that is, "missing by a tiny bit", the generated product anti-counterfeiting number will be "a thousand miles away", so it can be seen that this patent proposes a method for batch generation of product anti-counterfeiting two-dimensional codes Key sensitive.

[0141] Table 5 When the key changes slightly, the product anti-counterfeiting number generation results

[0142]

[0143]

[0144]

[0145]

[0146] From ...

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Abstract

The invention discloses a batch generation method of commodity anti-counterfeiting two-dimensional codes, comprising the following steps: encoding the identity information of a certain batch of commodities to generate a batch of commodity identity codes; converting the batch commodity identity codes into numerical data, and calculating switching data ; Use the identity information of batch commodities and the external key to iteratively generate a chaotic sequence on the Chebyshev chaotic tent map, and select a certain operation according to the switching data; use the serial number generated by a single commodity and the external key to perform The chaotic sequence is iteratively generated, and the ciphertext characters and the ciphertext character sequence obtained by combining the character sequence converted according to the corresponding relationship after scrambling and the production serial number of the characterized commodity are respectively scrambled according to the position change scrambling rules, and then combined Generate product anti-counterfeiting QR codes in batches. The method proposed by the invention is simple and feasible, has strong security and is not easy to crack, and the anti-counterfeiting codes of commodities generated in batches have "uniqueness and unforgeability".

Description

technical field [0001] The invention relates to the technical field of digital anti-counterfeiting, in particular to a batch generation method of commodity anti-counterfeiting two-dimensional codes. Background technique [0002] In today's society, the counterfeiting of commodities has gradually become a serious problem faced by the global economic field. The anti-counterfeiting situation in the 21st century is particularly severe. As the counterfeiting technology is becoming more and more sophisticated and the counterfeiters are becoming more and more experienced, the appearance of counterfeit products is also constantly improving. Therefore, there are higher requirements for digital anti-counterfeiting technology. However, the existing digital anti-counterfeiting technology basically uses a pseudo-random sequence or an ordered serial number to generate a commodity anti-counterfeiting code through DES symmetric encryption, which has certain differences with the performance ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/06H04L9/00H04L9/08
CPCH04L9/001H04L9/0816G06K19/06037G06K19/06206
Inventor 盛苏英张小美陆国平吴新华张振娟华亮周磊任洁
Owner NANTONG UNIVERSITY
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