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Generalized synchronization method for controlled Rucklidge system and Genesio-Tesi system for encryption and decryption

An encryption and decryption technology in a broad sense. It is used in transmission systems, digital transmission systems, and synchronous sending/receiving encryption equipment. It can solve the problems of not knowing the dynamic characteristics of chaotic signals and inability to decrypt them.

Inactive Publication Date: 2019-01-18
ZHEJIANG UNIV OF TECH
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AI Technical Summary

Problems solved by technology

Chaotic modulation is a way to solve complex problems in secret communication proposed by Halle and Hasler in 1992. The basic idea is to modulate the original signal with a chaotic signal and send it together; while the receiver demodulates and separates the the original signal; the third party cannot decrypt it because it does not know the dynamic characteristics of the chaotic signal

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  • Generalized synchronization method for controlled Rucklidge system and Genesio-Tesi system for encryption and decryption
  • Generalized synchronization method for controlled Rucklidge system and Genesio-Tesi system for encryption and decryption
  • Generalized synchronization method for controlled Rucklidge system and Genesio-Tesi system for encryption and decryption

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Embodiment Construction

[0110] The present invention will be further described below in conjunction with the accompanying drawings.

[0111] refer to Figure 1 ~ Figure 4 , a controlled Rucklidge system and Genesio-Tesi system generalized synchronization method for encryption and decryption, comprising the following steps:

[0112] 1) Generalized chaotic synchronization problem description

[0113] The driving system involved in the generalized chaotic synchronization technology is the Genesio-Tesi system, which was first proposed in 1992 (Genesio R, Tesi A. Harmonic balance methods for the analysis of chaotic dynamics in nonlinear systems. Automatica 1992,28:531–548. ), it is found that it has a chaotic phenomenon, and this system has also been verified that it can be implemented in a circuit, and its specific form is as follows:

[0114]

[0115] where ξ=(ξ 1 ,ξ 2 ,ξ 3 ) T is the state variable, α, β and γ are known real parameters, select appropriate parameters, such as α=0.44, β=1.1, γ=1...

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Abstract

The invention discloses a generalized synchronization method for a controlled Rucklidge system and a Genesio-Tesi system for encryption and decryption. The method comprises the following steps: 1), description of a generalized chaotic synchronization problem; 2), state transformation and feedback of a response system; 3), state transition of a drive system; 4), generalized synchronization. The invention provides the generalized chaotic synchronization method for the controlled Rucklidge system and the Genesio-Tesi system for encryption and decryption. The Genesio-Tesi chaotic system is used asthe drive system, and the single-input controlled Rucklidge system is used as the response system. A state space transition method is used for designing the chaotic synchronization method, thereby achieving generalized synchronization and high control quality.

Description

technical field [0001] The invention belongs to the technical field of chaos synchronization applicable to secure communication, and in particular relates to a chaos synchronization method using a Genesio-Tesi chaos system as a drive system and a single-input controlled Rucklidge system as a response system. Background technique [0002] Chaotic motion is a branch of nonlinear disciplines, but its scope has greatly exceeded the boundaries of traditional nonlinear disciplines, and has developed into a comprehensive, cross-cutting, cross-disciplinary branch of disciplines, which greatly broadens people's understanding of nonlinear disciplines. The horizon of science has a deeper understanding of nonlinear science. [0003] Chaos has also been applied to laser secure communication. A typical application is chaotic modulation. Chaotic modulation is a way to solve complex problems in secret communication proposed by Halle and Hasler in 1992. The basic idea is to modulate the or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/12H04L9/00
CPCH04L9/12H04L9/001H04L2209/12
Inventor 张端孙莹
Owner ZHEJIANG UNIV OF TECH
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