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Management code encryption and decryption method based on principal component analysis and Henon mapping

A principal component analysis, encryption and decryption technology, applied in the field of coding, can solve the problem of low security of QR codes, achieve the effect of large key space, resist statistical attacks and key attacks, and increase the difficulty of brute force cracking

Active Publication Date: 2020-06-02
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to protect the information security of power batteries in the traceability management system of the entire battery life cycle, and combine digital watermarking technology with chaotic sequence encryption technology to form a more complete and effective encryption method, thereby improving the security of QR codes low problem

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  • Management code encryption and decryption method based on principal component analysis and Henon mapping
  • Management code encryption and decryption method based on principal component analysis and Henon mapping
  • Management code encryption and decryption method based on principal component analysis and Henon mapping

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in more detail:

[0035] The example of the present invention carries out the simulation experiment on the computer of 8.0G internal memory, 64-bit operating system, lntel CORE i5-8300H, 2.3GHz processor, and the QR code containing power battery recovery information is selected as a standard QR code with a size of 100×100. value image.

[0036] A management coding encryption and decryption method based on principal component analysis and Henon mapping, such as figure 1 As shown, the encryption process includes the following steps:

[0037] The first step is to encode the information such as the date of entry and battery status of the retired power battery in the QR code system in the battery quality inspection link of the power battery storage stage in the traceability management system of the whole life cycle of the power battery, and generate the information cont...

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Abstract

The invention discloses a management code encryption and decryption method based on principal component analysis and Henon mapping. Based on an original chaotic encryption and decryption method, a QRcode encryption method based on the combination of principal component analysis (PCA) and chaotic encryption is provided. A QR code containing sensitive information is hidden into a QR code containing meaningless information through PCA and then a two-dimensional chaotic sequence is generated through Henon mapping to encrypt a generated image so as to achieve advantages of being good in scrambling effect, large in secret key space and the like, statistical attacks and secret key attacks can be effectively resisted, and the requirement for QR code safety in a tracing management system occasionof the whole life cycle of a battery can be met. The conclusion that the encryption effect of the method is good is obtained through evaluation from two aspects of adjacent pixel correlation and information entropy.

Description

technical field [0001] The invention belongs to the technical field of coding, and in particular relates to a management coding encryption and decryption method based on principal component analysis and Henon mapping. Background technique [0002] In recent years, the number of electric vehicles in my country has risen rapidly. Based on the calculation of the service life of power batteries for 3-5 years, it is expected that the scale of power battery retirement will exceed 10GWh in 2020. Although decommissioned power batteries cannot meet their performance requirements in the field of electric vehicle applications, they can still play their role in other occasions. Therefore, it is necessary to have a traceability management system for the whole life cycle of power batteries to manage large-scale retired power batteries. The traceability management system for the whole life cycle of power batteries includes power battery material planning, power battery recycling, power bat...

Claims

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Application Information

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IPC IPC(8): H04L9/00G06K19/06
CPCG06K19/06037H04L9/001H04L2209/608
Inventor 金梅张子豪张少阔李媛媛赵伟孟金岭张勇郎梦园
Owner YANSHAN UNIV