Quantum Watermarking by Frequency of Error when Observing Qubits in Dissimilar Bases

Details Quantum Watermarking by Frequency of Error when Observing Qubits in Dissimilar Bases Quantum Watermarking by Frequency of Error when Observing Qubits in Dissimilar Bases

2004-01-08

arxiv.org/abs/quant-ph/0401041v2

Physics

Quantum Physics

6 pages, 2 figures, added example

Scientific paper

We present a so-called fuzzy watermarking scheme based on the relative
frequency of error in observing qubits in a dissimilar basis from the one in
which they were written. Then we discuss possible attacks on the system and
speculate on how to implement this watermarking scheme for particular kinds of
messages (images, formated text, etc.).

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