Improved Asymptotic Key Rate of the B92 Protocol

Abstract

We analyze the asymptotic key rate of the single photon B92 protocol by using Renner's security analysis given in 2005. The new analysis shows that the B92 protocol can securely generate key at 6.5% depolarizing rate, while the previous analyses cannot guarantee the secure key generation at 4.2% depolarizing rate.

IEEEtran.sty, 3 pages, 1 figure. Submitted to IEEE ISIT 2013

References in corpus (1)

• Tomography increases key rates of quantum-key-distribution protocols

Cited by in corpus (4)

• Reliable numerical key rates for quantum key distribution
• Leftover hashing from quantum error correction: Unifying the two approaches to the security proof of quantum key distribution
• Key Rate of the B92 Quantum Key Distribution Protocol with Finite Qubits
• Multi-partite squash operation and its application to device-independent quantum key distribution