Cryptanalysis of correlation-based watermarking schemes using single watermarked copy

被引：18

作者：

Das, TK ^{[1
]}

Maitra, S ^{[1
]}

机构：

[1] Indian Stat Inst, Appl Stat Unit, Kolkata 700108, W Bengal, India

来源：

IEEE SIGNAL PROCESSING LETTERS | 2004年 / 11卷 / 04期

关键词：

correlation; cryptanalytic attacks; digital watermarking; image transforms;

D O I：

10.1109/LSP.2004.824028

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Most of the existing digital watermarking techniques are based on correlation between "some information stored in the watermarked copy" and "related information retrieved from attacked watermarked copy." In this letter, we show how to remove this correlation to mount a cipher text-only cryptanalytic attack on these watermarking schemes. The attack needs only a single watermarked copy of the image. Our work clearly raises question on the basic watermarking paradigm based on correlation measures.

引用

页码：446 / 449

页数：4

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