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Non-interactive Watermark Detection for a Correlation-Based Watermarking Scheme

  • André Adelsbach
  • Markus Rohe
  • Ahmad-Reza Sadeghi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3677)

Abstract

Cryptographic techniques have been deployed to securely prove the presence of a watermark in stego-data without disclosing any security critical information to the detecting party.

This paper presents a detailed practical construction and implementation results of a correlation-based non-blind watermarking scheme in the non-interactive zero-knowledge setting. We extensively describe the modifications and hurdles that had to be overcome to transform a well-known watermarking scheme – whose general detection principle is applied in many other known schemes – into a two-party setting where the critical detection input, i.e. the watermark vector and the original data is cryptographically concealed from the verifying party using a commitment scheme. Our prototype implementation is very efficient and is an evidence of the practical feasibility of zero-knowledge watermark detection.

Keywords

Watermark detection implementation zero-knowledge 

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Copyright information

© IFIP International Federation for Information Processing 2005

Authors and Affiliations

  • André Adelsbach
    • 1
  • Markus Rohe
    • 1
  • Ahmad-Reza Sadeghi
    • 1
  1. 1.Horst Görtz Institute for IT SecurityRuhr-Universität BochumGermany

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