Image compression encryption and decryption method based on compressed sensing and DNA coding

An image compression and compressed sensing technology, applied in image coding, image data processing, instruments, etc., can solve problems such as inability to resist plaintext attacks, low computing efficiency, anti-noise, and poor anti-cropping capabilities, to increase complexity and overcome Poor safety performance and the effect of improving operating efficiency

Active Publication Date: 2021-08-24
YANSHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Traditional image encryption algorithms have low computing efficiency, cannot resist plaintext attacks, and ha

Method used

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  • Image compression encryption and decryption method based on compressed sensing and DNA coding
  • Image compression encryption and decryption method based on compressed sensing and DNA coding
  • Image compression encryption and decryption method based on compressed sensing and DNA coding

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Embodiment Construction

[0055] The purpose of this invention is to provide an image compression and encryption scheme based on compressed sensing and DNA coding to improve the security of encrypted images.

[0056] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0057] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to disti...

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Abstract

The invention provides an image compression encryption and decryption method based on compressed sensing and DNA coding, and the method comprises the steps: taking an original image as a parameter of an SHA-256 hash function, and obtaining a hyper-chaos Bao system integer sequence and a Logistic chaos integer sequence; converting the Logistic chaotic integer sequence into a second matrix; carrying out sparse and Arnold transformation on the original image by using wavelet transformation; constructing a Hadamard matrix as a measurement matrix based on the compression ratio; performing compression measurement on the image after sparse decomposition by using the measurement matrix to obtain a first matrix; carrying out block processing on the first matrix and the second matrix, and carrying out DNA coding, operation and decoding on each small block; dynamically controlling DNA coding, decoding and operation modes by a hyper-chaos Bao integer sequence; and combining all sub-blocks to obtain an encrypted image. The defect that traditional compressed sensing cannot resist plaintext attacks is overcome.

Description

technical field [0001] The invention relates to the field of image encryption, in particular to an image compression encryption and decryption method based on compressed sensing and DNA coding. Background technique [0002] With the development of the Internet, people will transmit various data through the network, so the risk of information leakage increases. [0003] Traditional image encryption algorithms have low computing efficiency, cannot resist plaintext attacks, and have poor anti-noise and anti-cropping capabilities. There is still a lot of room for improvement in terms of security. Contents of the invention [0004] The purpose of the present invention is to provide an image compression encryption method based on compressed sensing and DNA coding, to realize the encryption of grayscale images, so as to resist plaintext attacks and improve security. [0005] In order to achieve the above purpose, the following technical solutions are adopted: [0006] The inven...

Claims

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Application Information

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IPC IPC(8): G06F21/60G06T9/00
CPCG06F21/602G06T9/00
Inventor 刘福才邓文博刘帅
Owner YANSHAN UNIV
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