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Color Image Encryption Method Based on l-p Chaotic Cross Diffusion and Cyclic Shift

A color image, cross-diffusion technology, applied in secure communication through chaotic signals, instruments, digital transmission systems, etc., can solve problems such as low-complexity security, hidden dangers of image security, and achieve good security and low algorithm time complexity. , to expand the effect of the avalanche effect

Active Publication Date: 2022-02-08
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0021] Aiming at the increasingly prominent potential safety hazards of images generated by mobile platforms in smart home systems, considering that chaotic mapping is widely used in encryption, and using multiple chaotic system encryption can improve the security of the encryption system, the present invention proposes a method based on L-P chaotic crossover The color image encryption algorithm of diffusion and cyclic shift has low complexity, high security, and the ability to resist various attacks, and can be applied to image encryption systems on mobile platforms

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  • Color Image Encryption Method Based on l-p Chaotic Cross Diffusion and Cyclic Shift
  • Color Image Encryption Method Based on l-p Chaotic Cross Diffusion and Cyclic Shift
  • Color Image Encryption Method Based on l-p Chaotic Cross Diffusion and Cyclic Shift

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Embodiment Construction

[0086] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0087] 1. Encryption algorithm

[0088] A color image encryption method based on L-P chaotic cross-diffusion and cyclic shift, comprising the following steps:

[0089] S1, take the color image I whose image size is M*N;

[0090] S2, the pixel value two-dimensional matrix of three channels of I (represented by R, G, B) is converted into one-dimensional matrix ICR[1, M*N], ICG[1, M*N], ICB[1, M *N];

[0091] S3, randomly generating the system parameter μ(μ∈(3.5699456,4]) of the Logistic mapping a...

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Abstract

The present invention relates to the field of image encryption algorithm design, in particular to a color image encryption method based on L-P chaotic cross-diffusion and cyclic shift, comprising the following steps: first, using Logistic chaotic mapping and piecewise linear chaotic mapping to generate different chaotic sequence, and then cross iteratively as the encryption key for the pixels of the three channels of R, G, and B, and use it to generate the number of cyclic shifts of the pixels of the three channels of the color image R, G, and B; then perform cross-isolation on the three channels Or operation to achieve diffusion, and then cyclically shift the pixel points of each channel, and use the key to encrypt and diffuse again, so as to obtain the ciphertext image. The invention has low complexity, high security, and the ability to resist various attacks, and can be applied to a mobile platform image encryption system.

Description

technical field [0001] The invention relates to the field of image encryption algorithm design, in particular to a color image encryption method based on L-P chaotic cross-diffusion and cyclic shift. Background technique [0002] The rapid development of smart homes continues to bring convenience to people's lives and save energy consumption. People are gradually enjoying this convenient and comfortable smart IoT service. However, in the process of smart home development, privacy leaks and identity disguises continue to occur. , Data tampering, man-in-the-middle attacks, replay attacks and other issues restrict the rapid development of smart homes. Therefore, the solution to security issues in smart homes is of great significance to the development of an intelligent society in the future. [0003] At present, some solutions to smart home security issues have been proposed at home and abroad, such as Jacobsson et al. [1] A smart home risk model is analyzed, which includes s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60H04L9/00
CPCG06F21/602H04L9/001G06F2221/2107
Inventor 廉佐政王海珍朱文龙薛仁政
Owner QIQIHAR UNIVERSITY