Chaotic cryptosystem based on inverse duffing circuit

We have studied experimentally a chaotic cryptosystem, which is based on the inverse system approach. We applied this method to a second order nonlinear circuit (master circuit), which is described by a Duffing equation. We present the implementation of the slave circuit with the inverse system approach and we demonstrate the decryption when the information signal has several forms (sinusoidal and rectangular). By appropriate choice of the parameters of the nonlinear oscillator, and the signal oscillator, it is possible to have a cryptosystem capable of transmitting information securely and recovering it accurately.

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