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Cryptanalysis of Discrete-Sequence Spread Spectrum Watermarks

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Author(s): Venkatesan Kesal

Language: English
Pages: 21

Introduction......Page 1
Contribution of Our Work:......Page 2
Notation:......Page 3
Source Model......Page 4
On dsss Watermarking Methods......Page 5
Key Extraction......Page 6
Estimation Analysis - Most General Case......Page 7
Estimation Analysis - Block Repetition Code......Page 8
Distortion Induced by Proposed Attack......Page 10
Single Random Variable Case:......Page 11
Block Repetition Code Case......Page 12
Simulation Results Based on Quantitative Analysis of the Attack......Page 13
Practical Details and Experimental Results of Proposed Attack Methods on Audio Clips......Page 14
Proof of Lemma 2......Page 17
Proof of Lemma 4......Page 18
Proof of Lemma 5......Page 19