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New encoding schemes for quantum authentication

Priscila Garcia-Fernandez·Enrique Fernandez-Martinez·Esther Perez·David J. Santos
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Abstract

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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Priscila Garcia-Fernandez, Enrique Fernandez-Martinez, Esther Perez, David J. Santos. 2003-06-10. New encoding schemes for quantum authentication. https://arxiv.org/abs/quant-ph/0306068

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