Fraunhofer Institut für Integrierte Publikations-und Informationssysteme IPSI

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Publication

Secure production of digital media

2005 , Steinebach, M.C. , Dittmann, J.

Today more and more media data is produced completely in the digital domain without the need of analogue input. This brings an increase of flexibility and efficiency in media handling, as distributed access, duplication and modification are possible without the need to move or touch physical data carriers. But this also reduces the security of the process: Without physical originals to refer to, changes in the material can remain unnoticed, at the end making the manipulated data the new original. Theft and illegal copies in the digital domain can happen without notice and loss of quality. We therefore see the need of setting up secure media production environments, where access control, integrity and copyright protection as well as traceability of individual copies are enabled. Addressing this need, we design a framework for media production environments, where mechanisms like encryption, digital signatures and digital watermarking help to enable a flexible yet secure handling and processing of the content.

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Publication

Enabling technology for the trading of MPEG-encoded video

1997 , Dittmann, J. , Steinmetz, A.

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Publication

Customer Identification for MPEG Video Based on Digital Fingerprinting

2001 , Dittmann, J. , Hauer, E. , Vielhauer, C. , Schwenk, J. , Saar, E.

In our publication we present a fingerprint watermark for the compressed video formats MPEG1/2 to ensure customer identification. The basic customer information is a watermark, which was developed for still images, We transfer it into the video area and adjust it to the special facts of MPEG video to be resistant against coalition attacks.

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Publication

Content-Fragile Watermarking Based on Content-Based Digital Signatures

1999 , Dittmann, J. , Steinmetz, A. , Steinmetz, R.

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