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Image Encryption Method Based on Controlled Alternating Quantum Walk and DNA Sequence Manipulation

A DNA sequence and encryption method technology, applied in the field of information security, can solve the problems of low security, high computational complexity and loss of frequency domain image encryption, and achieve the effect of ensuring security and reliable image encryption

Active Publication Date: 2021-09-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Space domain image encryption has low computational complexity but low security, and frequency domain image encryption has high security but high computational complexity and loss

Method used

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  • Image Encryption Method Based on Controlled Alternating Quantum Walk and DNA Sequence Manipulation
  • Image Encryption Method Based on Controlled Alternating Quantum Walk and DNA Sequence Manipulation
  • Image Encryption Method Based on Controlled Alternating Quantum Walk and DNA Sequence Manipulation

Examples

Experimental program
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example

[0079] 1. Select n in this 1 = N 2 = 49, K = 16, make N 1 × n 2 × 16 = 38416. Two parameters θ within the (0, π / 2) range 0 = Π / 3, θ 1 = Π / 5 generate two throwings

[0080] with

[0081] 2. Select the seed | φ 0 > = 1 / 2 [1; 1], information value:

[0082] M 0 = 0100100001000101010011000100110001001111010101110100111101010010010011000100010001001001010011000100111101010110010001010101010001001000010001010101011101001111010100100100110001000100

[0083] The controlled alternating quantum strolls are performed on a closed plane of 49 × 49. The evolution of the entire system occurs in a hilbert space On, initial state is | ψ 0 > = | 0,0> p | Φ 0 >, Execute the 酉 operation u = s according to the binary string of the information value y Cs x C, where the coin operation C is C 0 Or c 1 , Walking operation S x S y for

[0084]

[0085]

[0086] When the tip of the binary string is 0, the tenth step performs the 酉 operation u, where the coin operation used in the walk is select...

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Abstract

The invention discloses an image encryption method based on controlled alternate quantum walk and DNA sequence operation. The pixel value of the original image is changed by adding DNA sequence to the key matrix, and the pixel position is generated by the controlled alternate quantum walk. The random number sequence after distribution processing is perturbed. The scheme proposed by the invention has good encryption effect. It is highly sensitive to keys, can resist common attacks, such as statistical attacks, differential attacks, etc., and has high security, so it is a reliable image encryption method.

Description

Technical field [0001] The present invention belongs to the information security technology, and in particular to an scheme using a random number and DNA sequence operation generated based on controlled alternate quantum. Background technique [0002] Existing image encryption is usually implemented by airspace image encryption technology and frequency domain image encryption technology. Airspace Image Encryption Technique is encrypted on an uncompressed image, which is characterized by performing images as two-dimensional data. Typical ways for diamond image encryption technology are discrete chaotic encryption techniques. Frequency domain image encryption technology is encrypted based on certain compression formats or compression techniques, such as JPEG, arithmetic coding, wavelet compression technology, and the like. Airspace image encryption is small, but the security is low, and the frequency domain image is encrypted high but the computational complexity is large and has l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/32H04N1/44H04L9/08G06F21/60
CPCG06F21/602H04L9/0852H04L9/0869H04N1/32272H04N1/44
Inventor 李丹燕婷钱灵
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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