scholarly journals Performance analysis of decoy state quantum key distribution using two kinds of photon sources

2011 ◽  
Vol 60 (3) ◽  
pp. 030304
Author(s):  
Wang Han ◽  
Yan Lian-Shan ◽  
Pan Wei ◽  
Luo Bin ◽  
Guo Zhen ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Decoy State ◽  
Photon Sources

scholarly journals Modeling, Simulation, and Performance Analysis of Decoy State Enabled Quantum Key Distribution Systems

2017 ◽  
Vol 7 (2) ◽  
pp. 212 ◽  
Author(s):  
Logan Mailloux ◽  
Michael Grimaila ◽  
Douglas Hodson ◽  
Ryan Engle ◽  
Colin McLaughlin ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Quantum Key Distribution ◽  
Distribution Systems ◽  
Key Distribution ◽  
Decoy State ◽  
Modeling Simulation ◽  
And Performance

scholarly journals Measurement-device-independent quantum key distribution with leaky sources

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Weilong Wang ◽  
Kiyoshi Tamaki ◽  
Marcos Curty
Keyword(s):  
Quantum Key Distribution ◽  
Communication Systems ◽  
Signal Transmission ◽  
Information Leakage ◽  
Key Distribution ◽  
Time Frame ◽  
Measurement Device ◽  
Decoy State ◽  
Unrealistic Assumption ◽  
Measurement Device Independent

AbstractMeasurement-device-independent quantum key distribution (MDI-QKD) can remove all detection side-channels from quantum communication systems. The security proofs require, however, that certain assumptions on the sources are satisfied. This includes, for instance, the requirement that there is no information leakage from the transmitters of the senders, which unfortunately is very difficult to guarantee in practice. In this paper we relax this unrealistic assumption by presenting a general formalism to prove the security of MDI-QKD with leaky sources. With this formalism, we analyze the finite-key security of two prominent MDI-QKD schemes—a symmetric three-intensity decoy-state MDI-QKD protocol and a four-intensity decoy-state MDI-QKD protocol—and determine their robustness against information leakage from both the intensity modulator and the phase modulator of the transmitters. Our work shows that MDI-QKD is feasible within a reasonable time frame of signal transmission given that the sources are sufficiently isolated. Thus, it provides an essential reference for experimentalists to ensure the security of implementations of MDI-QKD in the presence of information leakage.

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