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A chaotic image encryption method based on complex network synchronization

A complex network and encryption method technology, which is applied in the field of chaotic image encryption based on complex network synchronization, can solve the problem of poor anti-interference ability of simulated chaotic security systems, and achieve the goal of increasing algorithm complexity, security, and actual use value Effect

Active Publication Date: 2018-12-28
NORTHEASTERN UNIV
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Problems solved by technology

[0004] The analog chaotic security system has disadvantages such as poor anti-interference ability, and digital communication technology can solve this problem well

Method used

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  • A chaotic image encryption method based on complex network synchronization
  • A chaotic image encryption method based on complex network synchronization
  • A chaotic image encryption method based on complex network synchronization

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Embodiment Construction

[0045] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0046] A chaotic image encryption method based on complex network synchronization, such as figure 1 shown, including the following steps:

[0047] Step 1. Synchronize the complex network;

[0048] Step 1.1, each client to be controlled is regarded as a node in the complex network, and the relationship between clients is represented by the degree of coupling between nodes to establish a complex network model;

[0049] Divide a complex network containing N nodes into m communities, 2≤m≤N; if node i belongs to the jth community, i=1, 2, ..., N, j = 1, 2, ..., N, and i≠j, there is a relation μ i = j established; set U j Indicates all nodes of j communities, Indicates th...

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Abstract

The invention provides a chaotic image encryption method based on complex network synchronization, which relates to the technical field of network encryption. A chaotic image encryption method based on complex network synchronization is disclosed. Firstly, the complex network is synchronized. Then the plaintext image is quantized and used as the current image. The current image is preprocessed byhyperchaos driving system, and the current image is scrambled and diffused to get the ciphertext image. Finally, the obtained ciphertext image is quantized, and the ciphertext image is taken as the current image to be processed, and the scrambling sequence is generated synchronously by using the super-mixing response system, and the current ciphertext image to be processed is processed by inversediffusion and inverse scrambling, so as to obtain the plaintext image. The chaotic image encryption method based on complex network synchronization provided by the invention makes the ciphertext imageconcealment strong, greatly increases the difficulty of deciphering, and enables the encryption algorithm to resist various statistical attacks, violent attacks and differential attacks.

Description

technical field [0001] The invention relates to the technical field of network encryption, in particular to a chaotic image encryption method based on complex network synchronization. Background technique [0002] With the increasing networking of human society and the increasing complexity of network systems, the security of information transmission is increasingly concerned by people. Complex networks play an important role in information security transmission and so on. In recent years, with the popularization of smart devices and the increase of image services, the security problem of image transmission has become increasingly serious. The Prism Gate incident that broke out in 2013 shook the world. A large number of private information such as emails and images were monitored, and the world fell into panic. In 2016, my country successfully launched the "Mozi" quantum communication satellite, marking that my country has entered the era of quantum secure communication. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/32
CPCH04N1/32272
Inventor 董迹海井元伟任涛吴蔚峰
Owner NORTHEASTERN UNIV
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