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A zero-crossing approach to uncover the mask by chaotic encryption with periodic modulation |
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| Authors: | Chin Yi Chee Daolin Xu Steven R Bishop |
| Institution: | a School of Mechanical & Production Engineering, Nanyang Technological University, Singapore 639798, Singapore b Centre for Nonlinear Dynamics and its Applications, University College London, Gower Street, London WC1E 6BT, UK |
| Abstract: | We present a so-called zero-crossing identification method that can crack the security shell of the chaotic encryption method Chaos, Solitons & Fractals 19 (2004) 919] with periodic modulation. By collecting a special set of truncated data from the zero-crossing incidents of the modulated signal, we can detect the modulating function from chaotic signal. Furthermore we extend the technique to extract modulating function from noise and discuss the potential applications of this method in engineering. |
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