Security against eavesdropping in quantum cryptography

Details Security against eavesdropping in quantum cryptography Security against eavesdropping in quantum cryptography

1997-11-18

arxiv.org/abs/quant-ph/9711033v1

Proceedings of an International Workshop on Quantum Communication, Computing, and Measurement, held September 25-30 1996 in Sh

Physics

Quantum Physics

11 pages including 3 figures, contains new results not contained in my Phys. Rev. A paper

Scientific paper

In this article we deal with the security of the BB84 quantum cryptography protocol over noisy channels using generalized privacy amplification. For this we estimate the fraction of bits needed to be discarded during the privacy amplification step. This estimate is given for two scenarios, both of which assume the eavesdropper to access each of the signals independently and take error correction into account. One scenario does not allow a delay of the eavesdropper's measurement of a measurement probe until he receives additional classical information. In this scenario we achieve a sharp bound. The other scenario allows a measurement delay, so that the general attack of an eavesdropper on individual signals is covered. This bound is not sharp but allows a practical implementation of the protocol.

Affiliated with

Also associated with

No associations

Rating

Security against eavesdropping in quantum cryptography does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Security against eavesdropping in quantum cryptography, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Security against eavesdropping in quantum cryptography will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-573084