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Quantum chaos optical image encryption and decryption method based on Kronecker product

A Kronecker product, encryption and decryption technology, which is applied in the field of quantum chaotic optical image encryption and decryption based on Kronecker product, can solve the problem of insufficient nonlinearity of optical image encryption technology, and achieves enhanced nonlinear security features and good performance. The effect of randomness and security against brute force attacks

Active Publication Date: 2020-05-26
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

[0004] The present invention provides a Kronecker-based quantum chaotic optical image encryption and decryption method to solve the security defect of the non-linearity of the existing optical image encryption technology

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  • Quantum chaos optical image encryption and decryption method based on Kronecker product
  • Quantum chaos optical image encryption and decryption method based on Kronecker product
  • Quantum chaos optical image encryption and decryption method based on Kronecker product

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specific Embodiment approach 1

[0040] Specific implementation mode one, combination figure 1 Figure 5 illustrates this embodiment, a quantum chaotic optical image encryption and decryption method based on Kronecker product, which is implemented by the following steps:

[0041] Set user encryption key: It is composed of the control parameters, initial value, order and number of iterations of the hyperchaotic system of the fractional three-cell quantum cellular neural network;

[0042] Step 1. Take the grayscale image "sailing boat" with a size of N×N as the original image f(x,y). In this embodiment, N=265, as attached Figure 5A Shown

[0043] Step 2. Use the control parameters, initial value, order and number of iterations of the hyperchaotic system of the three-cell quantum cellular neural network in the user encryption key to iterate the hyperchaotic system of the fractional three-cell quantum cellular neural network and the fractional three-cell quantum neural network. The state equation of the hyperchaotic sys...

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Abstract

The present invention provides a quantum chaos optical image encryption and decryption method based on Kronecker product, and relates to the technical field of optical information safety. The safety defect is solved that a current optical image encryption technology is not enough in nonlinearity. The optical image encryption and decryption method based on four-dimensional quantum Dicke chaos system and fractional order Hartley transform makes up the safety defect that the traditional optical image encryption technology is not enough in linearity due to the non-linear feature of the quantum chaos system. The fractional order quantum cellular neural network hyperchaos system is taken as a key generator to allow secret keys to have a larger space so as to safely resist to violent attacks. Thequantized Dicke model is very sensitive to the initial state, and a quantum chaos random phase template generated by the four-dimensional quantum Dicke chaos system and composite chaotic mapping hasgood randomness. The employed fractional order Hartley optical transform provides more selected control parameters compared to the integer order transform. The used Kronecker product template in the encryption process enhances the non-linear safety features of the optical encryption method.

Description

Technical field [0001] The invention relates to the technical field of optical information security, in particular to a method for encrypting and decrypting quantum chaotic optical images based on Kronecker product. Background technique [0002] Encryption of information is an important content in the field of information security today. Among them, optical information encryption technology is popular because of its parallelism, high speed and low cost. After the 1990s, the development of computer hardware and software and the emergence of the Internet brought people into the information society. Since information technology is widely used in all walks of life, there is an urgent need for a safe and efficient information encryption technology. Traditional encryption technology is mainly implemented by electronic means such as computers or digital signal processors, and these methods are limited by speed and cost. Some researchers naturally turn to encryption using optical or ph...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/32H04L9/00H04L9/08
CPCH04L9/001H04L9/0852H04N1/32154H04N1/3216H04N1/32272
Inventor 李锦青底晓强任维武毕琳解男男祁晖从立钢刘晓杰赵巍李佳欢王欢王晶春丁勇陈晓冬满振龙管红梅
Owner CHANGCHUN UNIV OF SCI & TECH
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