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Improving the Security of Chaotic Synchronization With a \Delta -Modulated Cryptographic Technique

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3 Author(s)
Xiyin Liang ; Dept. of Electr., Electron. & Comput. Eng., Pretoria Univ., Pretoria ; Jiangfeng Zhang ; Xiaohua Xia

A secure chaos-based communication with a Delta-modulated chaotic cryptographic technique is developed in this paper. We prove that a Delta-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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Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:55 ,  Issue: 7 )