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A Bionic Cellular Automata Image Encryption Method Based on Equilibrium Rules

A technology of cellular automaton and encryption method, which is applied in the field of image security, can solve the problem of enlarged rule space, achieve balanced distribution, best scrambling and diffusion effects, and improve security and encryption efficiency

Inactive Publication Date: 2019-07-23
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned documents, while using arbitrary rules for evolution, the cellular automaton still has the reversible ability, which makes the rule space larger

Method used

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  • A Bionic Cellular Automata Image Encryption Method Based on Equilibrium Rules
  • A Bionic Cellular Automata Image Encryption Method Based on Equilibrium Rules
  • A Bionic Cellular Automata Image Encryption Method Based on Equilibrium Rules

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Experimental program
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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0026] The present invention provides a kind of image encryption method based on the bionic cellular automaton of balance rule, such as figure 1 shown, including the following steps:

[0027] Step 1, extract the pixel matrix I of the plaintext image m×n , m is the height of the plaintext image, n is the width of the plaintext image, both in pixels;

[0028] Step 2, the pixel matrix I of the plaintext image m×n Convert to a one-dimensional sequence of length m×n, and then calculate the length of the pseudo-random number at the end of the one-dimensional sequence If len=0, no padding is required, and the length of the one-dimensional sequence after padding is

[0029] Step 3, convert the filled one-dimensional sequence into a binary sequence, the length of the binary sequence is The binary sequence is then converted into two binary square ma...

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Abstract

The invention discloses an image encryption method for a bionic cellular automaton based on a balance rule. The method comprises the following steps that: firstly, utilizing a digital filling technology to add a random number to the tail of a plaintext image, converting the random number into two binary square matrixes with the same size, independently taking as two initial states of the bionic cellular automaton, then, selecting the balance rule of one bionic cellular automaton as a secret key, and utilizing the iterative number theory of the bionic cellular automaton for encryption. The method has a large secret key space, various attacks can be resisted, and the method is very suitable for image encryption.

Description

technical field [0001] The invention relates to an image encryption method based on a balance rule-based bionic cellular automaton, which belongs to the image encryption technology in the field of information security. Background technique [0002] In today's society, with the development of the information age, more and more digital images are transmitted on the Internet, stored on the cloud platform and shared on the mobile terminal. These images not only involve personal privacy, but may also be related to issues such as national security. Therefore, the security of digital images has been paid more and more attention by society and academia. In recent years, many algorithms for image encryption have emerged. Among them, cellular automata are widely used in image encryption because of their sensitivity to initial values, randomness of dynamic behavior, and unpredictability of evolution. [0003] A cellular automaton is a discrete dynamical system. Its simple structure,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60G06T1/00
CPCG06F21/602G06T1/00
Inventor 平萍吴金杰樊金阳毛莺池许国艳
Owner HOHAI UNIV