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Phys. Rev. A 64, 024302 (2001) [4 pages]

Quantum key distribution via quantum encryption

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Yong-Sheng Zhang, Chuan-Feng Li*, and Guang-Can Guo†
Laboratory of Quantum Communication and Quantum Computation and Department of Physics, University of Science and Technology of China, Hefei 230026, People’s Republic of China

Received 9 November 2000; published 28 June 2001

A quantum key distribution protocol based on quantum encryption is presented in this Brief Report. In this protocol, the previously shared Einstein-Podolsky-Rosen pairs act as the quantum key to encode and decode the classical cryptography key. The quantum key is reusable and the eavesdropper cannot elicit any information from the particle Alice sends to Bob. The concept of quantum encryption is also discussed.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.64.024302
DOI:
10.1103/PhysRevA.64.024302
PACS:
03.67.Dd, 03.65.Ud

*Electronic address: cfli@ustc.edu.cn

†Electronic address: gcguo@ustc.edu.cn

 
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