Improving the security of chaotic synchronization with a ∆-modulated cryptographic technique

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Authors

Liang, Xiyin
Zhang, Jiangfeng
Xia, Xiaohua

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Publisher

IEEE

Abstract

A secure chaos-based communication with a ∆-modulated chaotic cryptographic technique is developed in this paper. We prove that a ∆-modulated feedback control of a 1-D discrete-time control system gives rise to a chaotic system. Base on this chaotic system, a modified parameter modulation scheme is proposed to improve security. As illustrated by numerical simulation, the parameter in the sender is protected by a secure cryptosystem against two popular attacks.

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Keywords

Chaos synchronization, Chaos cryptography, Parameter modulation, Lorenz system, ∆- Modulated feedback

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Citation

Liang, X, Zhang, J & Xia, X 2008, ‘Improving the security of Chaotic Synchronization with Δ-Modulated Cryptographic Technique’, IEEE Transactions on circuits and systems – II: Express Briefs, vol. 55, no. 7, pp. 680-684.