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Proceedings Paper

Quantum unicity distance
Author(s): Chong Xiang; Li Yang
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Paper Abstract

We attempt to develop Shannon's concept of the unicity distance into the quantum context. Based on the definition of information-theoretic security for quantum cryptography, we present a quantum probabilistic encryption algorithm with bounded information-theoretic security, and then work out its quantum unicity distances. The result shows that quantum unicity distance is much bigger than the unicity distance of classical cryptography.

Paper Details

Date Published: 4 May 2012
PDF: 6 pages
Proc. SPIE 8440, Quantum Optics II, 84400T (4 May 2012); doi: 10.1117/12.922555
Show Author Affiliations
Chong Xiang, Graduate Univ. of the Chinese Academy of Sciences (China)
Li Yang, Graduate Univ. of the Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 8440:
Quantum Optics II
Thomas Durt; Victor N. Zadkov, Editor(s)

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