On reconciliation of discrepant sequences shared through quantum mechanical channels
In the practical quantum key distribution system, discrepancies may occur on the secret random sequences shared through a quantum mechanical channel even in the absence of an eavesdropper because of an imperfect system configuration and noises. The discrepancies may be spread and expanded tlirougli a following privacy amplification. Therefore all the discrepancies must be removed at this point. The reconciliation protocol was proposed by Bennett et al. As long as the authors know, however, detailed investigation on the protocol has not been reported.
In this report, we investigate the reconciliation protocol proposed by Bennett et al. and consider to optimize it.
KeywordsBlock Size Legitimate User Previous Pass Error Rate Estimation Private Channel
Unable to display preview. Download preview PDF.
- C. H. Bennett and G. Brassard, in Proc. of the IEEE list, Conf. of) Computers, Systems, and Signal Processing, Bangalore, India (IEEE,New York, 1984), p.175.Google Scholar
- A. K. Ekert, Plays. Rev. Lett., vol. 67, 1)p.661, 1991.Google Scholar
- C. H. Bennett, Phys. Rev. Lett. vol.68, 1)p.3121, 1992.Google Scholar
- C. H. Bennett, F. Bessette, G. Brassard, L. Salvail and J. Smolin, J. Cryptol. vol.5, 1)p.3, 1992.Google Scholar
- P. D. Townsend, Elec. Lett. vol.30, 1)p.809, 1994.Google Scholar
- A. Muller, H. Zbinden and N. Gisin, Europhys. Lett. vol.33, 1)p.335,1996.Google Scholar
- C. H. Bennett, F. Bessette, G. Brassard and J.-M. Robert, SIAM J. COMPUT., vol. 17, p.210 1988.Google Scholar
- C. H. Bennett, G. Brassard, C. Crépeau and U. M. Maurer, IEEE Trans. Inform. Theory, vol. 41, p.1915, 1995.Google Scholar
- G. Brassard and L. Salvail, Advances in Cryptology-Proc. Eurocrypt '93, p.410, 1994.Google Scholar