Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multi-image Encryption Algorithm in Space Domain Based on Chaotic System

An encryption algorithm and chaotic system technology, applied in the field of image processing, can solve the problems of unsatisfactory encryption efficiency and complicated operation, and achieve the effects of simple structure, high encryption efficiency and high security.

Inactive Publication Date: 2020-11-20
NORTHEASTERN UNIV LIAONING
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tang et al. proposed a MIE algorithm based on bit-plane decomposition and chaotic mapping, but its operation is complex and the encryption efficiency is not ideal

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-image Encryption Algorithm in Space Domain Based on Chaotic System
  • Multi-image Encryption Algorithm in Space Domain Based on Chaotic System
  • Multi-image Encryption Algorithm in Space Domain Based on Chaotic System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0038] Embodiment: overall implementation principle and detailed steps

[0039] Step 1: Enter the plaintext image file and key;

[0040] The plaintext image is k grayscale images with a size of m×n pixels, and the bit depth is d; the key form is (x, y, d 1 ,p 1 , d 2 ,p 2 ), where (x,y) is the size of the image block, (d 1 ,p 1 ) is the key of the scrambling phase, (d 2 ,p 2 ) is the key of the diffusion stage;

[0041] Step 2: Scrambling the plaintext image, the specific process is:

[0042] Step 2.1: Iterate the PWLCM system, the formula is as follows:

[0043]

[0044] where p is the control parameter, x i is the system initial value x 0 The value after iterating i times, p∈(0,0.5),x i ∈(0,1); with d in the key 1 As the initial value of the system, p 1 As a control parameter, the PWLCM system iteratively times, discard the results of the previous l iterations, and get the length The chaotic sequence S p ;

[0045] Step 2.2: rearrange the chaotic seque...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of image processing and provides a spatial domain multi-image encryption algorithm based on a chaotic system, including a bit-level multi-image scrambling method and a multi-image diffusion method. In this algorithm, pixels in an image can be dispersed into different images after being scrambled, and small changes in a plain text image can be spread to all images. This algorithm can achieve high security in histogram analysis, correlation coefficient analysis and information entropy analysis. It has a simple structure, high encryption efficiency and is easy to implement. It can be applied in the fields of business, e-government, personal affairs and other fields.

Description

technical field [0001] The invention belongs to the field of image processing, and mainly relates to information protection, information security technology and encryption technology in the field of digital multimedia information. It specifically relates to a space domain multi-image encryption algorithm based on chaotic system. Background technique [0002] Today, the rapid development of computer and network technology has brought earth-shaking changes to people's lives, and various digital information is widely used and disseminated. Among them, the application scenarios of multimedia information, especially digital images, involve many fields. Images can carry a lot of private information, and image information in special fields such as military and business has high requirements for confidentiality. However, digital images have the characteristics of large amount of data, high pixel correlation, and large data redundancy. It is not very suitable to use traditional enc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/10G06F21/60G06F21/62
CPCG06F21/10G06F21/602G06F21/6209
Inventor 王书雯张伟于海朱志良
Owner NORTHEASTERN UNIV LIAONING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com