Attacks on BB84 with Two Identical and Measured Photons
Konferenz: ECOC 2024 - 50th European Conference on Optical Communication
22.09.2024-26.09.2024 in Frankfurt, Germany
Tagungsband: ITG-Fb. 317: ECOC 2024
Seiten: 4Sprache: EnglischTyp: PDF
Autoren:
Stephan, Mira; Klingmann, Fabian; Meissner, Philipp; Kirrbach, Rene
Inhalt:
Quantum key distribution (QKD) systems often use attenuated lasers. Therefore, some pulses contain more than one photon. This contribution shows attacks on the BB84 protocol with two identical photons in a downstream QKD network. Phase covariant cloning is optimal but other attacks become more dangerous.