Quantum key system and method

Details Quantum key system and method Quantum key system and method

2002-04-30

2008-08-19

Barron, Jr., Gilberto (Department: 2132)

Cryptography

Key management

Key distribution

C380S044000, C380S256000

Reexamination Certificate

active

07415114

ABSTRACT:
This invention provides a quantum key distribution (QKD) system and method for determining initial quantum keys (QKs), including an initial QKA (220) and an initial QKB (230), determining an initial QKA value of a first function applied to said initial QKA, wherein a value of said first function depends upon values of specified information unit of a QK, including bit i (210), determining an initial QKB value of said first function applied to said initial QKB; and forming a revised QKA by depending a value of an information unit of said revised QKA on a value of information unit i of said initial QKA, if said initial QKA value equals said initial QKB value.

REFERENCES:
patent: 5307410 (1994-04-01), Bennett
patent: 5764765 (1998-06-01), Phoenix et al.
patent: 6188768 (2001-02-01), Bethune
patent: 6272224 (2001-08-01), Mazourenko et al.
patent: 6678379 (2004-01-01), Mayers et al.
patent: 7181011 (2007-02-01), Trifonov
patent: 7346166 (2008-03-01), Inoue et al.
Shor et al, “Simple proof of security of 3884 Quantun Key distribution Protocol,” Phys rev lett 85 (2000) 441-444 (May 12, 2000).
Inamori, “Security of EPX based Quantum Key distribution using three bases,” arxiv: quant-ph/000 80 76 VI Aug. 16, 2000.
Bennet et al., “Mixed State entanglement and quantum error correcton,” phy rev. A vol. 54, No. 5 Nov. 1996.
Bennet et al, “Experimental quantum cryptography” Eurocrypt '90 pp. 253-265 1991.
Bru B, “Optimal eavesdropping in quantum cryptography with Six States,” Phy rev. lett vol. 81, No. 14, Oct. 5, 1998. (3018-3020).
Bennet et al, “Quantum cryptography: Public Key distribution and coin tossing,” In'tl conf. on computers systems and Signal Proc, Bangalore, India Dec. 10-12, 1984.

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