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Image encryption method for high dimension digital domain chaotic system

A chaotic system, encryption method technology, applied in the field of information security, can solve problems such as limited precision effect

Active Publication Date: 2016-05-04
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, since all operations (iterations) are performed on the real number field, when such operations are implemented by computers or digital devices, the limitation of the word length to be operated will inevitably lead to limited precision effects

Method used

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  • Image encryption method for high dimension digital domain chaotic system
  • Image encryption method for high dimension digital domain chaotic system
  • Image encryption method for high dimension digital domain chaotic system

Examples

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Embodiment Construction

[0047] figure 1 The design of the high-dimensional digital domain chaotic system of an embodiment of the present invention, as well as the steps and sequence of the chaotic sequence generation method are shown schematically.

[0048] refer to figure 1 , using the iterative equation of the known m-dimensional digital domain chaotic system

[0049] x 1 n = F 1 ( x 1 n - 1 , x 2 n - ...

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Abstract

The invention discloses an image encryption method for a high dimension numerical field chaotic system, comprising steps of establishing a m-dimension digital domain chaotic system, wherein m=3, utilizing a three-dimension digital domain chaotic system to generate three chaotic sequences, using the three chaotic sequences to perform encryption on image information of three paths which are red, green and blue paths, transmitting the cipher text value from a transmission terminal to a reception terminal through a channel, and performing deciphering on the information on the reception terminal. Because the high dimension numerical field chaotic system is adopted to realize the image encryption and deciphering, the effective accuracy effect problem which is generated by the numerical field chaotic system when the digital device is realized is solved.

Description

(1) Technical field [0001] The invention relates to information security technology in image processing, in particular to an image encryption method for a chaotic system in a high-dimensional digital domain. (2) Background technology [0002] Nowadays, the application of multimedia information processing technology is becoming more and more extensive, and multimedia data is widely spread and stored among Internet or cloud computing nodes. Among them, the amount of multimedia data such as various images and videos is large, and there is a strong correlation between adjacent data, so that the traditional encryption technology is increasingly showing technical deficiencies such as inefficiency, and it is difficult to meet real-time encryption requirements. sexual demands. Among them, the chaotic encryption technology that emerged as the times require, because chaotic signals show extreme sensitivity to initial conditions, no periodicity and other complex characteristics, makin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00
CPCG06T1/0021
Inventor 王倩雪禹思敏方晓乐
Owner GUANGDONG UNIV OF TECH
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