Robust Chaotic Cryptosystems Based on T-S Fuzzy Model
نویسنده
چکیده
This paper presents the robust design for chaotic cryptosystems. The cryptosystem combines cryptograph with chaotic synchronization. The hyperchaotic signals are synchronized between the encrypter and the decrypter based on observer gains. The technique of linear matrix inequality (LMI) is applied to determine the observer gains. A theorem has been proposed to guarantee the robust stabilization for the chaotic synchronization system with external disturbance. Furthermore, the disturbance attenuation level is minimized such that the cryptosystems are optimally robust. Computer simulation demonstrates that the effectiveness of the robust design.
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