Chaos-based cryptograph incorporated with S-box algebraic operation

Details Chaos-based cryptograph incorporated with S-box algebraic operation Chaos-based cryptograph incorporated with S-box algebraic operation

2003-06-17

arxiv.org/abs/nlin/0306029v1

Nonlinear Sciences

Chaotic Dynamics

17pages,6 figures

Scientific paper

Error function analysis is an effective attack against chaotic cryptograph [PRE 66, 065202(R) (2002)]. The basin structure of the error function is crucial for determining the security of chaotic cryptosystems. In the present paper the basin behavior of the system used in [21] is analyzed in relation with the estimation of its practical security. A S-box algebraic operation is included in the chaotic cryptosystem, which considerably shrinks the basin of the error function and thus greatly enhances the practical security of the system with a little computational expense. PACS numbers: 05.45.Vx, 05.45.Ra

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