Method for generating and reading graded QR code

A QR code, two-level technology, applied in the field of hierarchical QR code generation method and reading, can solve troubles and other problems, and achieve the effect of ensuring security

Active Publication Date: 2015-01-07
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there have been many researches on two-dimensional code information hiding technology, but whether it is domestic or foreign, the method is to encrypt all information and decrypt it when scanning, so as to prevent information from being leaked or tampered with. The method is cumbersome, and not all information is important information, so it must be kept confidential from anyone

Method used

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  • Method for generating and reading graded QR code
  • Method for generating and reading graded QR code
  • Method for generating and reading graded QR code

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Embodiment 2

[0042] Embodiment two, such as figure 2 As shown, the process of this embodiment is basically the same as that of Embodiment 1, the difference is: in said step 1, it also includes the steps of judging whether to embed information and whether to encrypt:

[0043] After entering the first-level information, judge whether to embed the information. When the information is embedded, then enter the second-level information; after entering the second-level information, judge whether to encrypt it. If it is encrypted, then enter the first key; six.

[0044] When the information is not embedded, go to step 6.

[0045] Such as image 3 As shown, a specific embodiment of a hierarchical QR code reading method is carried out in the following steps:

[0046] A1. Determine whether there is secondary information in the QR code. If there is secondary information, perform step A2; if there is no secondary information, read the primary information and end;

[0047] A2. Separate primary info...

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Abstract

The invention discloses a method for generating and reading a graded QR code, and belongs to the field of information encryption. Information is divided into first-grade information and second-grade information, the QR code with the graded information is generated, a common user and a senior user obtain information different in integrality by scanning the QR code, and the senior needs to input a correct secret key to obtain the second-grade information. The common user can only obtain the first-grade information by scanning the QR code, and the senior user needs to input the correct secret key to obtain the first-grade information and the second-grade information and can only obtain the first-grade information otherwise. The method is simple and practical; the information has the gradable reading characteristic, and therefore the security of the information is reliably guaranteed.

Description

technical field [0001] The invention belongs to the field of information encryption, and in particular relates to a generation method and a reading method of a hierarchical QR code. Background technique [0002] In the era of information technology, new technologies and new equipment allow information to be expressed in various forms, and the carrier of information is also changing. Because of the simplicity and convenience of QR codes, it is becoming more and more common in real life. Two-dimensional code is a new generation of barcode technology that records data symbol information in a black and white rectangular matrix distributed on a plane (two-dimensional direction) according to certain rules. It consists of a two-dimensional code matrix graphic and a two-dimensional code number, and the explanatory text below. In daily life, the application of QR codes can be seen everywhere. In the subway, there are QR codes at the bottom of the product advertisements of Ihaodian. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06G06K7/10
Inventor 周庆代兆胜李志星李心池陈琨胡月王永
Owner CHONGQING UNIV
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