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Shor-Preskill Type Security-Proofs for Concatenated Bennett-Brassard 1984 Quantum Key Distribution Protocol

W. -Y. Hwang·K. Matsumoto·H. Imai·J. Kim·H. -W. Lee
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Abstract

We discuss long code problems in the Bennett-Brassard 1984 (BB84) quantum key distribution protocol and describe how they can be overcome by concatenation of the protocol. Observing that concatenated modified Lo-Chau protocol finally reduces to the concatenated BB84 protocol, we give the unconditional security of the concatenated BB84 protocol.

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W. -Y. Hwang, K. Matsumoto, H. Imai, J. Kim, H. -W. Lee. 2002-10-31. Shor-Preskill Type Security-Proofs for Concatenated Bennett-Brassard 1984 Quantum Key Distribution Protocol. https://doi.org/10.1103/physreva.67.024302

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