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Image encryption algorithm based on quantum chaotic mapping and DNA encoding

A chaotic mapping, quantum technology, applied in image data processing, image data processing, computing and other directions, can solve problems such as inapplicable images

Inactive Publication Date: 2018-10-16
NORTHEAST FORESTRY UNIVERSITY
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Problems solved by technology

[0002] With the rapid development of computer networks and multimedia, the security of image information has been paid more and more attention, and then there have been a variety of encryption technologies, such as DES, RSA, etc. However, most encryption technologies are proposed for text encryption, which is not Not suitable for images with large data volumes

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  • Image encryption algorithm based on quantum chaotic mapping and DNA encoding
  • Image encryption algorithm based on quantum chaotic mapping and DNA encoding
  • Image encryption algorithm based on quantum chaotic mapping and DNA encoding

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Embodiment Construction

[0026] 1. The initial value x of the quantum logistic chaotic map 1 =0.4347,x 2 =0.7823,x 3 =0.4547,x 4 =0.8823,y 1 =0.0563,y 2 =0.0362,y 3 =0.0463,y 4 =0.0262,z 1 =0.1384,z 2 =0.1134,z 3 =0.1284,z 4 = 0.1434, parameter β = 6, r = 3.99. The parameters of the Lorenz chaotic map are a=10, b=8 / 3, c=28, and the initial values ​​are x 0 =25.384,y 0 =7.235,z 0 =18.347.

[0027] 2, Figure 1-Figure 3 It is an encryption and decryption effect diagram obtained from a simulation experiment for a 512×512 Lena grayscale image. figure 1 is the original image of Lena, figure 2 is the encrypted image after encrypting the original image, image 3 for the decrypted image.

[0028] 3. Figure 4 It is the rendering of the grayscale histogram analysis of the image before Lena image encryption, Figure 5 Grayscale histogram of encrypted image for Lena. Through comparison, it can be found that the pixel values ​​of the gray histogram before encryption are concentrated on some ...

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Abstract

The invention provides an image encryption algorithm based on quantum chaotic mapping and DNA encoding, in combination with a quantum chaotic system and a DNA coding theory, in order to ensure the safety of image information. Firstly, generating a random sequence by using a quantum Logistic chaotic to cyclically shift and scramble images; then performing dynamic DNA encoding on the images by usinga quantum chaos mapping; then performing DNA addition by using Lorenz chaotic, or diffusing the images; and finally, performing DNA decoding on the image by using quantum chaos to obtain a cipher-image. The image encryption algorithm is obtained by the combination of the above portions, which can encrypt the images by the giving different chaotic primary values.

Description

Technical field: [0001] The invention relates to an image encryption algorithm, which uses quantum chaotic mapping and DNA dynamic encoding to encrypt images. Background technique: [0002] With the rapid development of computer networks and multimedia, the security of image information has been paid more and more attention, and then a variety of encryption technologies have emerged, such as DES, RSA, etc. However, most encryption technologies are proposed for text encryption. Not suitable for images with large data volumes. Chaos-based encryption technology has the characteristics of simple implementation, fast encryption speed, and high security. It has increasingly demonstrated its advantages in the field of encryption. Chaos technology has become the main encryption technology in recent years. Among them, quantum chaos solves the problems of "fixed point" and "stability window" of traditional chaos. The randomness of the system is better and the sensitivity is stronger,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00
CPCG06T1/0021
Inventor 张健霍达
Owner NORTHEAST FORESTRY UNIVERSITY
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