Shor-Preskill-type security proof for concatenated Bennett-Brassard 1984 quantum-key-distribution protocol

Journal Article · Sat Feb 01 00:00:00 EST 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.024302· OSTI ID:20633781

Hwang, Won-Young; Matsumoto, Keiji; Imai, Hiroshi ^[1]; Kim, Jaewan ^[2]; Lee, Hai-Woong ^[3]

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1. IMAI Quantum Computation and Information Project, ERATO, Japan Science and Technology Corporation, Daini Hongo White Building 201, 5-28-3, Hongo, Bunkyo, Tokyo 133-0033 (Japan)
2. School of Computational Sciences, Korea Institute for Advanced Study, Seoul 130-012 (Korea, Republic of)
3. Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of)

We discuss a long code problem in the Bennett-Brassard 1984 (BB84) quantum-key-distribution protocol and describe how it 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.

• OSTI ID: 20633781
• Journal Information: Physical Review. A, Vol. 67, Issue 2; Other Information: DOI: 10.1103/PhysRevA.67.024302; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CORRELATIONS
DATA TRANSMISSION
DISTRIBUTION
ENERGY LEVELS
QUANTUM MECHANICS
SECRECY PROTECTION