597 citations · 3k across the 37 of their papers we have counts for
4 papers · 2 filters
Security proof of a three-state quantum key distribution protocol without rotational symmetry
Chi-Hang Fred Fung, Hoi-Kwong Lo
Standard security proofs of quantum key distribution (QKD) protocols often rely on symmetry arguments. In this paper, we prove the security of a three-state protocol that does not…
Decoy state quantum key distribution with two-way classical post-processing
Xiongfeng Ma, Chi-Hang Fred Fung, Frédéric Dupuis +3
Decoy states have recently been proposed as a useful method for substantially improving the performance of quantum key distribution protocols when a coherent state source is used.…
Discrete Rotational Symmetry and Quantum Key Distribution Protocols
David Shirokoff, Chi-Hang Fred Fung, Hoi-Kwong Lo
We study the role of discrete rotational symmetry in quantum key distribution by generalizing the well-known Bennett-Brassard 1984 (BB84) and Scarani-Acin-Ribordy-Gisin 2004 (SARG0…
Phase-Remapping Attack in Practical Quantum Key Distribution Systems
Chi-Hang Fred Fung, Bing Qi, Kiyoshi Tamaki +1
Quantum key distribution (QKD) can be used to generate secret keys between two distant parties. Even though QKD has been proven unconditionally secure against eavesdroppers with un…