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Optical image encryption and decryption based on composite chaos and quantum chaos

An optical image, encryption and decryption technology, applied in the field of optical information security, can solve the problem of insufficient nonlinearity of optical image encryption technology, and achieve the effects of low power consumption, high key dimension, and strong security attack.

Active Publication Date: 2019-01-11
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

[0004] The present invention provides an optical image encryption and decryption method based on compound chaos and quantum chaos in order to solve the safety defect of the existing optical image encryption technology of non-linearity

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  • Optical image encryption and decryption based on composite chaos and quantum chaos
  • Optical image encryption and decryption based on composite chaos and quantum chaos
  • Optical image encryption and decryption based on composite chaos and quantum chaos

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specific Embodiment approach 1

[0034] Specific implementation mode 1. Combination Figure 1 to Figure 3 Describe this embodiment, the optical image encryption and decryption method based on compound chaos and quantum chaos. In this embodiment, the user encryption key is composed of: the initial value P of the three-cell fractional order quantum cellular neural network hyperchaotic system 1 (0),P 2 (0),P 3 (0), Control parameter β 1 , β 2 , β 3 , θ 1 , θ 2 , θ 3, order; the initial value of the composite chaotic map, the control parameters; the series of the deformed fractional Fourier transform.

[0035] The method is realized by the following steps: step 1, selecting a "flower" color image with a size of 256*256 as the plaintext image Pimage;

[0036] Step 2. Split the plaintext image Pimage according to the three colors of red, green and blue to obtain three color component matrices with a size of N*N, namely: the plaintext image red component matrix PR, the plaintext image green component matri...

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Abstract

An optical image encryption and decryption method based on compound chaos and quantum chaos is provided, which relates to the field of optical information security technology and solves the security defect of the non-linear shortage of the existing optical image encryption technology, the method comprising an encryption process and a decryption process, wherein the user encryption key and the decryption key are respectively set, which consist of the initial value, the control parameter and the order of the hyperchaotic system of a three-cell fractional quantum cellular neural network, the initial value and the control parameters of the composite chaotic map, and the series of the deformed fractional Fourier transform. The invention makes up for the security defect that the linear characteristic of the traditional optical image encryption technology is insufficient, and the fractional-order quantum chaotic system has a higher key dimension, bigger secret key space and greater sensitivity and can better resist all kinds of security attacks; the quantum chaotic system is a new type of nano-device, which is characterized in that quantum dots and quantum cellular automata transmit information mutually by the Coulomp action.

Description

technical field [0001] The invention relates to the technical field of optical information security, in particular to an optical image encryption and decryption method based on fractional order quantum chaos and deformed fractional Fourier transform Background technique [0002] With the rapid development of optical technology and information technology, optical information processing technology has made great progress. The inherent parallel processing capability of the optical information system shows incomparable advantages in the processing of massive amounts of information. Since the dual random phase optical encryption technology was first proposed in 1995, researchers have designed a large number of dual random phase optical image encryption method. Optical image encryption technology has strong parallel processing capability, and optical parameters can also be used as user keys to increase the key space, so optical image encryption technology has been widely used. H...

Claims

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Application Information

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IPC IPC(8): G06F21/60G06N20/00G06N7/08
CPCG06F21/602G06N7/08G06F2221/2107
Inventor 底晓强李锦青祁晖从立钢任维武毕琳解男男蔡彬彬马帅孙苏鹏宋超群赵鸿雁丁强满振龙陈晓冬
Owner CHANGCHUN UNIV OF SCI & TECH
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