Chaotic filter bank for computer cryptography

Ling, Bingo Wing-Kuen and Ho, Charlotte Yuk-Fan and Tam, Peter Kwong-Shun (2007) Chaotic filter bank for computer cryptography. Chaos, Solitons and Fractals, 34 (3). pp. 817-824. ISSN 0976-0779

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Full text URL: http://dx.doi.org/10.1016/j.chaos.2006.03.105

Abstract

A chaotic filter bank for computer cryptography is proposed. By encrypting and decrypting signals via a chaotic filter bank, the following advantages are enjoyed: 1) one can embed signals in different frequency bands by employing different chaotic functions; 2) the number of chaotic generators to be employed and their corresponding functions can be selected and designed in a flexible manner because perfect reconstruction does not depend on the invertibility, causality, linearity and time invariance of the corresponding chaotic functions; 3) the ratios of the subband signal powers to the chaotic subband signal powers can be easily changed by the designers and perfect reconstruction is still guaranteed no matter how small these ratios are; 4) the proposed cryptographical system can be easily adapted in the international multimedia standards, such as JPEG 2000 and MPEG4.

Item Type:Article
Additional Information:A chaotic filter bank for computer cryptography is proposed. By encrypting and decrypting signals via a chaotic filter bank, the following advantages are enjoyed: 1) one can embed signals in different frequency bands by employing different chaotic functions; 2) the number of chaotic generators to be employed and their corresponding functions can be selected and designed in a flexible manner because perfect reconstruction does not depend on the invertibility, causality, linearity and time invariance of the corresponding chaotic functions; 3) the ratios of the subband signal powers to the chaotic subband signal powers can be easily changed by the designers and perfect reconstruction is still guaranteed no matter how small these ratios are; 4) the proposed cryptographical system can be easily adapted in the international multimedia standards, such as JPEG 2000 and MPEG4.
Keywords:chaotic filter bank, cryptographical system, Cryptography using chaos
Subjects:H Engineering > H620 Electrical Engineering
H Engineering > H310 Dynamics
Divisions:College of Science > School of Engineering
ID Code:2623
Deposited By: Rosaline Smith
Deposited On:09 Jun 2010 21:36
Last Modified:13 Mar 2013 08:39

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