Cryptography – Communication system using cryptography – Fiber optic network
Reexamination Certificate
2004-02-13
2009-11-17
LaForgia, Christian (Department: 2439)
Cryptography
Communication system using cryptography
Fiber optic network
C380S277000, C380S044000
Reexamination Certificate
active
07620182
ABSTRACT:
A method for enhancing the security of a quantum key distribution (QKD) system having QKD stations Alice and Bob. The method includes encrypting key bits generated by a true random number generator (TRNG) and sent to a polarization or phase modulator to encode weak optical pulses as qubits to be shared between Alice and Bob. Key bit encryption is achieved by using a shared password and a stream cipher. Bob obtains at least a subset of the original key bits used by Alice by utilizing the same stream cipher and the shared password.
REFERENCES:
patent: 5675648 (1997-10-01), Townsend
patent: 5757912 (1998-05-01), Blow
patent: 5764765 (1998-06-01), Phoenix et al.
patent: 5850441 (1998-12-01), Townsend et al.
patent: 6529601 (2003-03-01), Townsend
patent: 7035411 (2006-04-01), Azuma et al.
patent: 7298848 (2007-11-01), Debuisschert
patent: 7430295 (2008-09-01), Pearson et al.
patent: 7512242 (2009-03-01), Pearson et al.
patent: 7536012 (2009-05-01), Meyers et al.
patent: 2002/0106084 (2002-08-01), Azuma et al.
patent: 2003/0112970 (2003-06-01), Mitra
patent: 2004/0032954 (2004-02-01), Bonfrate et al.
patent: 2006/0120529 (2006-06-01), Gisin et al.
C.H. Bennett e tal. “Quantum Cryptography: Public key distribution and coin tossing.” Proceedings of IEEE International Conference on Computers, Systems, and Signal Processing. Bangalore India. p. 175-179.
Bruce Schneier. Applied Cryptograph. 1996. John Wiley & Sons, Inc. p. 197-211.
Gisin et al, “Quantum Cryptography”, Rev.Mod.Phys., vol. 74, Jan. 2002.
Biham et al, “A Proof of the Security of Quantum Key Distribution”, Proceedings of 32nd Annual ACM Symposium on Theory of Computing, May 21-23, 2000, Portland, OR, USA.
Zhang et al, “Cryptographically Resilient Functions”, IEEE Transactions on Information Theory, vol. 43, No. 5, pp. 1740-1747, Sep. 1997.
Bennett, “Experimental Quantum Cryprography”, Advances in Cryprography-EUROCRYPT'90, LNCS, vol. 473, pp. 253-265, 1991.
Bouwmeester, “The physics of quantum information,” Springer-Verlag, Berlin, Germany 2001, (ISBN 3-540-66778-4) pp. 27-33.
Berzanskis Audrius
Young Jonathan
LaForgia Christian
MagiQ Technologies, Inc.
Opticus IP Law PLLC
LandOfFree
QKD with classical bit encryption does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with QKD with classical bit encryption, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and QKD with classical bit encryption will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4135847