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Advanced partial encryption using watermarking and scrambling in MP3

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Abstract

In this paper, we propose an advanced partial encryption of watermarking and scrambling using the magnitude information of Modifed Discrete Cosine Transform (MDCT). In MPEG-1/Audio Layer III (MP3), the magnitude and phase information of modified discrete cosine transform (MDCT) coefficients is encrypted. The proposed method uses both watermarking and scrambling, and aims at protecting the contents against eavesdropping and moreover against illegal mass distribution after descrambled. Experimental results show that the proposed method can achieve higher security and less computational complexity by reusing the MDCT coefficients obtained in MP3.

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Acknowledgement

This study was supported by research funds from Chosun University, 2008.

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Authors and Affiliations

  1. Department of Information and Communication Engineering, Chosun University, Gwangju, Korea

    Goo-Rak Kwon, Chuntao Wang, Shiguo Lian & Suk-seung Hwang

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  1. Goo-Rak Kwon
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  2. Chuntao Wang
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  3. Shiguo Lian
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  4. Suk-seung Hwang
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Correspondence to Suk-seung Hwang.

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Kwon, GR., Wang, C., Lian, S. et al. Advanced partial encryption using watermarking and scrambling in MP3. Multimed Tools Appl 59, 885–895 (2012). https://doi.org/10.1007/s11042-011-0771-8

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  • DOI: https://doi.org/10.1007/s11042-011-0771-8

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