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Color Image Encryption Method Based on Stereo Scrambling Model and Chaos

A color image and encryption method technology, which is applied in the direction of secure communication through chaotic signals, image communication, and secure communication devices, can solve the problems of weak security and low encryption efficiency, so as to improve security and efficiency, improve encryption effect, The effect of efficient network transmission

Active Publication Date: 2021-08-06
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the present invention: To solve the problems of weak security or low encryption efficiency in the existing color image encryption method, a color image encryption method based on the three-dimensional scrambling model and chaos is proposed

Method used

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  • Color Image Encryption Method Based on Stereo Scrambling Model and Chaos
  • Color Image Encryption Method Based on Stereo Scrambling Model and Chaos
  • Color Image Encryption Method Based on Stereo Scrambling Model and Chaos

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Experimental program
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Embodiment Construction

[0032] The implementation process of the present invention will be further described in detail below in conjunction with specific drawings and examples.

[0033] figure 1 is the encryption flowchart of this method.

[0034] The programming software used is Matlab R2018b, select figure 2 A Lena color image of size 512 × 512 is shown as the original image. Using this method, the detailed process of Alice encrypting the original image is described as follows.

[0035] Steps 1~4: After establishing the stereo scrambling model according to the above rules, the original image figure 2 Carry out the corresponding mapping transformation to obtain the scrambled image, such as image 3 shown.

[0036] Step 5: Chaos scrambling: use initial values u 1 =3.81415, x 1 =0.100001 After 511 iterations, a row sequence with a length of 512 is generated and rounded to obtain X 2 , X 2 ={ x 2 i}; use the initial value u 2 =3.89437, x 2 =0.100012 After 511 iterations, a column...

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Abstract

The invention discloses a color image encryption method based on a three-dimensional scrambling model and chaos, which belongs to the field of information encryption. At present, with the rapid development of multimedia technology, people can access a large amount of image information everywhere. In order to protect the security of these image contents, the present invention establishes a three-dimensional scrambling model suitable for color images on the basis of two-dimensional Zigzag transformation. In order to improve the security and efficiency of the encryption method, a color image encryption method based on stereo scrambling model and chaos is designed. The method utilizes the stereo scrambling model and improves the performance of the encryption method. Experiments show that the encryption effect of this method is good, the key space is large, and the key sensitivity is strong, which can realize efficient and safe network transmission of color images.

Description

technical field [0001] The invention relates to an information encryption technology, in particular to a color image encryption method. Background technique [0002] In today's environment of rapid development of multimedia technology, in many fields such as military affairs, commerce and daily life, people can come into contact with a large amount of image information everywhere. In order to protect the information of these images from being stolen, image encryption technology emerges as the times require. Due to the large amount of color image information and wide application range, the security of color image content has attracted much attention of researchers. Although there are many encryption methods, there are still problems such as low efficiency or weak security. [0003] Based on the two-dimensional Zigzag transform, a stereo scrambling model for color images is established. In order to improve the security and efficiency of the encryption method, a color image e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/44H04L9/00
CPCH04L9/001H04N1/44
Inventor 张晓强宫正珺
Owner CHINA UNIV OF MINING & TECH