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Medical image wavelet-domain real-time encryption and decryption algorithm based on multi-chaos system

An encryption and decryption algorithm and a technology for medical images, applied in the field of real-time encryption and decryption algorithms in the wavelet domain of medical images, can solve the problems of large amount of encrypted data and cannot be well adapted to medical images, achieve high time efficiency, and meet the needs of real-time encryption and decryption , high security effect

Active Publication Date: 2018-10-16
COLLEGE OF APPLIED SCI JIANGXI UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

These have caused the traditional encryption methods for natural images to not be well suited for medical images.
Judging from the existing encryption methods for medical images, most of the methods are carried out in the airspace of the image, that is, the pixels of the image are encrypted. In order to increase the encryption effect, it is generally necessary to encrypt all the pixels, and the amount of encrypted data is large.

Method used

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  • Medical image wavelet-domain real-time encryption and decryption algorithm based on multi-chaos system
  • Medical image wavelet-domain real-time encryption and decryption algorithm based on multi-chaos system
  • Medical image wavelet-domain real-time encryption and decryption algorithm based on multi-chaos system

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Embodiment Construction

[0073] Although the invention has been described with respect to specific embodiments, it is apparent that the principles of the invention can be applied beyond the embodiments specifically described herein. Moreover, some details have been left out here in order not to obscure the inventive aspects of the invention. Specific details not described within this application are within the purview of any person of ordinary skill in the art.

[0074] The drawings in this application and their accompanying detailed description are for purposes of illustrating example embodiments of the invention only. In order to maintain brevity, other embodiments of the invention using the principles of the invention are not specifically described in this application and are not specifically illustrated by the present drawings. "Example" here simply means "serving as an example, instance, or illustration."

[0075] Such as figure 1 As shown, the medical image wavelet domain real-time encryption...

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Abstract

The invention provides a medical image wavelet-domain real-time encryption and decryption algorithm based on a multi-chaos system. The medical image wavelet-domain real-time encryption and decryptionalgorithm based on the multi-chaos system includes the following steps of decomposing a medical image, encrypting wavelet coefficients, obtaining the encrypted medical image, and decrypting the medical image. Compared with related technologies, the medical image wavelet-domain real-time encryption and decryption algorithm based on the multi-chaos system adopts LeGaII5 / 3 integer wavelet transform to conduct three-grade wavelet grading on the initial medical image, and thus the relevance among pixels of the medical image is fully reduced; the medical image wavelet-domain real-time encryption anddecryption algorithm based on the multi-chaos system has high time efficiency and high security at the condition that an initial chaos value and system parameters are unknown.

Description

technical field [0001] The invention relates to the technical field of chaotic cryptography in cryptography, in particular to a real-time encryption and decryption algorithm in the wavelet domain of medical images based on multiple chaotic systems. Background technique [0002] The rapid development of medical informatization, telemedicine and online medical care has promoted the online transmission of medical information, and medical images, as an important part of medical information, have become the main content of transmission. However, the transmission of medical images containing important medical diagnostic information on the public network faces many security risks such as privacy leaks. How to effectively protect the security of medical images has become a research hotspot. Data encryption, an active content protection method, still has broad application prospects. [0003] Medical images have completely different characteristics from natural images. First, they hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16H30/40H04L9/00
CPCH04L9/001G16H30/40
Inventor 邓小鸿
Owner COLLEGE OF APPLIED SCI JIANGXI UNIV OF SCI & TECH
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