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Two-dimensional code information encryption method and device and two-dimensional code information decoding method and device based on image processing

A technology of two-dimensional code information and encryption method, which is applied in image data processing, image data processing, image coding, etc.

Pending Publication Date: 2019-10-29
张佳炜 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The news that various personal information has been leaked also proves that this method has huge flaws in security

Method used

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  • Two-dimensional code information encryption method and device and two-dimensional code information decoding method and device based on image processing
  • Two-dimensional code information encryption method and device and two-dimensional code information decoding method and device based on image processing
  • Two-dimensional code information encryption method and device and two-dimensional code information decoding method and device based on image processing

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Example 1 of the present invention provides a two-dimensional code information encryption method, such as figure 1 As shown, the method includes:

[0048] Get the QR code image;

[0049] Identify QR code images carrying information;

[0050] Delineate the image processing area through the two-dimensional code positioning point;

[0051] Select the number of encryption layers according to actual needs. Simple encryption is a random random sequence, and complex encryption is to randomly select x blocks of image areas and repeat the whole image random sequence once;

[0052] The specific method of disordering is: randomly divide the non-positioning area of ​​the two-dimensional code into m equal-area quadrilaterals according to 2n*2n, determine the equivalent point of the divided area, that is, the relative center point, and divide the m The block equal-area quadrilateral is characterized by 2n assignments and calibrations based on the arc distance between its position ...

Embodiment 2

[0084] Example 2 of the present invention provides a two-dimensional code information encryption method, such as figure 1 As shown, the method includes:

[0085] Get the QR code image;

[0086] Identify QR code images carrying information;

[0087] Delineate the image processing area through the two-dimensional code positioning point;

[0088] Such as Figure 6 Shown is a division method, but not limited to this division method, such as Figure 7 The division method shown is also the division method of the image processing area covered by the encryption algorithm of the present invention.

[0089] Select the number of encryption layers according to actual needs. Simple encryption is a random random sequence, and complex encryption is to randomly select x blocks of image areas and repeat the whole image random sequence once;

[0090] The specific method of disordering is: randomly divide the non-positioning area of ​​the two-dimensional code into m equal-area quadrilateral...

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Abstract

The invention discloses an information encryption method applied to a two-dimensional code and an encrypted two-dimensional code decoding method and device. The invention relates to a two-dimensionalcode technology, an image processing technology and a cryptology principle. The unique image characteristics of the two-dimensional code are utilized to reprocess the two-dimensional code, so that theinformation carried by the public two-dimensional code is private. The method comprises the following steps: randomly cutting a two-dimensional code image carrying information according to an Equivalence class principle; redistributing the images according to rules; generating a camouflage two-dimensional code; the reading device identifying the camouflage two-dimensional code; sending the secretkey to the terminal; and restoring the effective information through key matching. The technical problem to be solved is to reasonably plan a system algorithm and improve the time cost of maliciouslycracking information to the maximum extent. According to the invention, the problem that personal information of enterprise users is maliciously stolen is solved in a simpler and more convenient manner, and legal rights and interests of enterprises and users are maintained.

Description

technical field [0001] The invention belongs to the technical field of two-dimensional codes, and relates to a two-dimensional code information encryption system, in particular to a two-dimensional code information encryption system which uses two-dimensional code image characteristics to encrypt two-dimensional code information; the present invention also relates to the above-mentioned An encryption method of an encryption system; in addition, the present invention further relates to a decoding method and a decoding system of an encrypted two-dimensional code. Background technique [0002] Two-dimensional bar code / two-dimensional bar code (2-dimensional bar code) is used to record data symbol information, and uses a certain geometric figure to distribute in a plane (two-dimensional direction) according to certain rules. In the coding, the concepts of "0" and "1" bit streams that constitute the internal logic basis of the computer are cleverly used, and several geometric sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40G06T9/00G06T1/00G06K19/06
CPCG06T3/4038G06T9/00G06T1/0021G06K19/06037
Inventor 徐铭寅张佳炜徐萌琪吕联荣
Owner 张佳炜
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