Johannes Ueberberg

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Digital watermarking is the enabling technology to prove ownership on copyrighted material, detect originators of illegally made copies, monitor the usage of the copyrighted multimedia data and analyze the spread spectrum of the data over networks and servers. Embedding of unique customer identification as a watermark into data is called fingerprinting to(More)
Given a finite field F = GF (q n) of order q n it is well-known that the map f : F → F , f : x → x q is a field automorphism of F of order n, called the Frobenius automor-phism. If V is an n-dimensional vector space over the finite field GF (q), then V can be considered as the vector space of the field GF (q n) over GF (q). Therefore the Frobenius(More)
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