Secure watermark embedding through partial encryption

Authors:
Aweke Lemma;Stefan Katzenbeisser;Mehmet Celik;Michiel van der Veen
Affiliations:
Philips Research Europe, AE Eindhoven, The Netherlands;Philips Research Europe, AE Eindhoven, The Netherlands;Philips Research Europe, AE Eindhoven, The Netherlands;Philips Research Europe, AE Eindhoven, The Netherlands
Venue:
IWDW'06 Proceedings of the 5th international conference on Digital Watermarking
Year:
2006

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Abstract

Secure watermark embedding allows to securely embed a watermark into a piece of content at an untrusted user device without compromising the security of the watermark key, the watermark or the original. In this paper, we show how secure embedding can be achieved by using traditional watermarking schemes in conjunction with partial encryption techniques, which were primarily developed to facilitate fast encryption of media content. Based on this concept, we develop two new efficient secure embedding mechanisms, one for the MASK watermarking scheme operating on baseband audio and one for a spread spectrum watermarking scheme operating on MPEG-2 encoded video streams.