Liang, XiyinZhang, JiangfengXia, Xiaohua2009-05-282009-05-282008-07Liang, 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. 680-684.1549-774710.1109/TCII.2008.921585http://hdl.handle.net/2263/10224A 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.enIEEEChaos synchronizationChaos cryptographyParameter modulationLorenz system∆- Modulated feedbackCryptography -- South AfricaChaotic behavior in systemsArticle