Attacking Quantum key distribution with GHZ state

Attacking Quantum key distribution with GHZ state

A modified attack scheme base on GHZ state is proposed. The relationships among QBER, ratio of qubits which eavesdropped by Eve(eavesdropper) and average photon number in signal state were analysed. The simulation shows that when Eve attacks all of the multi-photons state pulses and the 43% of singl...

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Veröffentlicht in:Optik (Stuttgart) 2013-09, Vol.124 (18), p.3219-3220
Hauptverfasser: Zhao, Guhao, Zhao, Shanghong, Yao, Zhoushi, Meng, Wen, Wang, Xiang, Zhu, Zhihang, Liu, Feng
Format: Artikel
Sprache:eng
Schlagworte:
Eavesdrop
GHZ state
Nonlinearity
Photons
Quantum cryptography
Qubits (quantum computing)
Receivers
Simulation
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Zusammenfassung:A modified attack scheme base on GHZ state is proposed. The relationships among QBER, ratio of qubits which eavesdropped by Eve(eavesdropper) and average photon number in signal state were analysed. The simulation shows that when Eve attacks all of the multi-photons state pulses and the 43% of single-photon state pulses he can get about 46% original qubits which shared between Alice (sender) and Bob (receiver). And the average photon number of the signal state affect the QBER and the leaked information non-linearly.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2012.10.034