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http://dx.doi.org/10.3745/KIPSTC.2005.12C.3.379

Secure Asymmetric Watermarking Based on Correlation Detection  

Li De (상명대학교 컴퓨터과학과)
Kim JongWeon (상명대학교 디지털저작권보호연구센터)
Choi JongUk (상명대학교 소프트웨어대학)
Publication Information
The KIPS Transactions:PartC / v.12C, no.3, 2005 , pp. 379-386 More about this Journal
Abstract
Traditional watermarking technologies are symmetric method which embedding and detection keys are same. Although the symmetric watermarking method is easy to detect the watermark, has method has weakness against to malicious attacks to remove or modify the watermark information when the symmetric key is disclosure. Recently, the asymmetric watermarking method that has different keys to embed and detect is watched several researchers as a next generation watermarking technology. In this paper, we have expanded search space of secret key using the solution set of linear simultaneous equations. Secret key is generated by secure linear transformation method to prevent of guessing secret key from public key, and the correlation value between secret key and public key is high. At the results, the multi bits information can be embedded and high correlation value was detected after JPEG compression.
Keywords
Private Key; Public Key; Correlation Detection; Asymmetric;
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