Abstract
We introduce a new class of quantum key distribution protocols, tailored to be robust against photon number splitting (PNS) attacks. We study one of these protocols, which differs from the original protocol by Bennett and Brassard (BB84) only in the classical sifting procedure. This protocol is provably better than BB84 against PNS attacks at zero error.
- Received 22 November 2002
DOI:https://doi.org/10.1103/PhysRevLett.92.057901
©2004 American Physical Society