A simple proof of the unconditional security of quantum key distribution

Details A simple proof of the unconditional security of quantum key distribution A simple proof of the unconditional security of quantum key distribution

1999-04-27

arxiv.org/abs/quant-ph/9904091v1

J.Phys.A34:6957-6968,2001

Physics

Quantum Physics

13 pages, extended abstract. Comments will be appreciated

Scientific paper

10.1088/0305-4470/34/35/321

Quantum key distribution is the most well-known application of quantum cryptography. Previous proposed proofs of security of quantum key distribution contain various technical subtleties. Here, a conceptually simpler proof of security of quantum key distribution is presented. The new insight is the invariance of the error rate of a teleportation channel: We show that the error rate of a teleportation channel is independent of the signals being transmitted. This is because the non-trivial error patterns are permuted under teleportation. This new insight is combined with the recently proposed quantum to classical reduction theorem. Our result shows that assuming that Alice and Bob have fault-tolerant quantum computers, quantum key distribution can be made unconditionally secure over arbitrarily long distances even against the most general type of eavesdropping attacks and in the presence of all types of noises.

Affiliated with

Also associated with

No associations

Rating

A simple proof of the unconditional security of quantum key distribution 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 A simple proof of the unconditional security of quantum key distribution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A simple proof of the unconditional security of quantum key distribution will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-93513