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Image encryption method based on quantum Baker mapping and sine chaos model

An encryption method and quantum image technology, applied in the direction of chaos model, secure communication through chaos signal, calculation model, etc., can solve the problems of small periodicity, poor scrambling effect, small encryption system key space, etc., to achieve safe storage and Transmission, reduce algorithm complexity, improve the effect of key space

Active Publication Date: 2022-03-08
SOUTHWEST UNIVERSITY
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  • Application Information

AI Technical Summary

Problems solved by technology

Most of the quantum image encryption algorithms that have been proposed at this stage use the Arnold transform to scramble the pixel position. Because of its small periodicity, the key space of the encryption system is small and the scrambling effect is poor.

Method used

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  • Image encryption method based on quantum Baker mapping and sine chaos model
  • Image encryption method based on quantum Baker mapping and sine chaos model
  • Image encryption method based on quantum Baker mapping and sine chaos model

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Embodiment Construction

[0031] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] figure 1 It is a schematic flowchart of the method of the present invention. As shown in the figure, the method includes the following steps: S1, performing quantum image representation on the image to be encrypted; S2, using quantum Baker transform (Quantum Baker transform, QBT) to represent the image on the quantum Scrambling the pixel values; S3, using a sine chaotic model to generate a chaotic sequence; S4, bitwise XORing the chaotic sequence and the scrambled image to obtain the final encrypted image.

[0033] figure 2 For the embodiment renderings, the specific embodiments are as follows: the specific implementation process of the image encryption method based on Baker mapping and sine chaotic model is as follows:

[0034] 1) Select as figure 2 The image of size 256 × 256 shown in (a) is the experimental image, and the encry...

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Abstract

The invention relates to an image encryption method based on quantum Baker mapping and a sine chaos model, and belongs to the technical field of quantum calculation and image information processing. The method comprises the following steps: S1, performing quantum image representation on a to-be-encrypted image; s2, carrying out the scrambling of the pixel values of the quantum representation image through the adoption of quantum Baker transform (QBT), and carrying out the scrambling of the pixel values of the quantum representation image; s3, generating a chaos sequence by adopting a sine chaos model; and S4, performing bitwise exclusive or on the chaotic sequence and the scrambled image to obtain a final encrypted image. Compared with the prior art, the method has the advantages that pixel position scrambling of quantum Baker mapping and XOR operation of a sine chaos model are achieved, the key space of an encryption system can be remarkably improved, safe storage and transmission of images are guaranteed, and compared with traditional image encryption, the algorithm complexity is reduced, and the encryption performance is improved.

Description

technical field [0001] The invention belongs to the technical field of quantum computing and image information processing, and relates to an image encryption method based on a quantum Baker mapping and a sine chaotic model. Background technique [0002] With the increasing demand of current massive image data processing, the new image processing technology based on quantum parallelism shows potential huge advantages. The superposition and entanglement properties of quantum states can greatly improve the efficiency of image processing, and the quantum non-clonability theorem also ensures the security of image storage and transmission. Therefore, applying quantum computing to the field of image security can further improve the security and effectiveness of image encryption. [0003] At present, a variety of quantum image encryption algorithms based on chaotic systems and affine transformation scrambling have been proposed. Researchers have successively proposed image encrypt...

Claims

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Application Information

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IPC IPC(8): H04N1/44H04L9/00H04L9/08G06N7/08G06N10/00
CPCH04N1/44H04L9/001H04L9/0852G06N7/08G06N10/00
Inventor 刘兴斌邹李凌云谢欣洋周玉国
Owner SOUTHWEST UNIVERSITY
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