Digital watermarking is envisaged as a potential technology for copyright protection and manipulation recognition. A key issue in the usage of robust watermarking is the evaluation of robustness and security. StirMark Benchmarking has been taken to set a benchmarking suite for audio watermarking in addition to existing still image evaluation solutions. In particular we give an overview of recent advancements and actual questions in robustness and transparency evaluations, in complexity and performance issues, in security and capacity questions. Further more we introduce benchmarking for content-fragile watermarking by summarizing design aspects and concluding essential benchmarking requirements
In this paper we describe a scheme in which each receiver of a multicast session receives a stream with a different, unique watermark, while still retaining the scalability of multicast. The watermarked streams can be used to trace those users who make unauthorized copies of a stream. The watermarking is enabled by encryption of two slightly different copies of the original stream with a large set of different keys.
The book was inadvertently published with an incorrect name of the copyright holder. The name of the copyright holder for this book is: c IFIP International Federation for Information Processing. The book has been updated with the changes.
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