Unconditional Security of Practical Quantum Key Distribution

Details Unconditional Security of Practical Quantum Key Distribution Unconditional Security of Practical Quantum Key Distribution

2001-07-03

arxiv.org/abs/quant-ph/0107017v1

European Physical Journal D, Vol 41, p.599 (2007)

Physics

Quantum Physics

47 pages

Scientific paper

10.1140/epjd/e2007-00010-4

We present a complete protocol for BB84 quantum key distribution for a realistic setting (noise, loss, multi-photon signals of the source) that covers many of todays experimental implementations. The security of this protocol is shown against an eavesdropper having unrestricted power to manipulate the signals coherently on their path from sender to receiver. The protocol and the security proof take into account the effects concerning the finite size of the generated key.

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