New encoding schemes for quantum authentication

Details New encoding schemes for quantum authentication New encoding schemes for quantum authentication

2003-06-10

arxiv.org/abs/quant-ph/0306068v1

Physics

Quantum Physics

LaTeX, 11 pages

Scientific paper

We study the potential of general quantum operations, Trace-Preserving Completely-Positive Maps (TPCPs), as encoding and decoding mechanisms in quantum authentication protocols. The study shows that these general operations do not offer significant advantage over unitary encodings. We also propose a practical authentication protocol based on the use of two successive unitary encodings.

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