Influence of avalanche-photodiode dead time on the security of high-speed quantum-key distribution systems

2006 ◽  
Author(s):  
Hai Xu ◽  
Lijun Ma ◽  
Joshua C. Bienfang ◽  
Xiao Tang
Keyword(s):  
Quantum Key Distribution ◽  
High Speed ◽  
Distribution Systems ◽  
Dead Time ◽  
Key Distribution ◽  
Avalanche Photodiode

scholarly journals Detector dead-time effects and paralyzability in high-speed quantum key distribution

2007 ◽  
Vol 9 (9) ◽  
pp. 319-319 ◽  
Author(s):  
Daniel J Rogers ◽  
Joshua C Bienfang ◽  
Anastase Nakassis ◽  
Hai Xu ◽  
Charles W Clark
Keyword(s):  
Quantum Key Distribution ◽  
High Speed ◽  
Dead Time ◽  
Key Distribution ◽  
Time Effects

scholarly journals Security of high speed quantum key distribution with finite detector dead time

2014 ◽  
Vol 14 (3&4) ◽  
pp. 217-235
Author(s):  
Viacheslav Burenkov ◽  
Bing Qi ◽  
Ben Fortescue ◽  
Hoi-Kwong Lo
Keyword(s):  
Distribution System ◽  
Quantum Key Distribution ◽  
High Speed ◽  
Dead Time ◽  
Detection Efficiency ◽  
Transmission Rate ◽  
Key Distribution ◽  
Generation Rate ◽  
Key Generation ◽  
Bb84 Protocol

The security of a high speed quantum key distribution system with finite detector dead time $\tau$ is analyzed. When the transmission rate becomes higher than the maximum count rate of the individual detectors ($1/\tau$), security issues affect the scheme for sifting bits. Analytical calculations and numerical simulations of the Bennett-Brassard BB84 protocol are performed. We study Rogers et al.'s scheme (further information is available in [D. J. Rogers, J. C. Bienfang, A. Nakassis, H. Xu, and C. W. Clark, New J. Phys.~{\bf 9}, 319 (2007)]) in the presence of an active eavesdropper Eve who has the power to perform an intercept-resend attack. It is shown that Rogers et al.'s scheme is no longer guaranteed to be secure. More specifically, Eve can induce a basis-dependent detection efficiency at the receiver's end. Modified key sifting schemes that are basis-independent and thus secure in the presence of dead time and an active eavesdropper are then introduced. We analyze and compare these secure sifting schemes for this active Eve scenario, and calculate and simulate their key generation rate. It is shown that the maximum key generation rate is $1/(2\tau)$ for passive basis selection, and $1/\tau$ for active basis selection. The security analysis for finite detector dead time is also extended to the decoy state BB84 protocol for one particular secure sifting scheme.

scholarly journals Synchronization in Quantum Key Distribution Systems

Cryptography ◽  
2017 ◽  
Vol 1 (3) ◽  
pp. 18 ◽  
Author(s):  
Anton Pljonkin ◽  
Konstantin Rumyantsev ◽  
Pradeep Singh
Keyword(s):  
Quantum Key Distribution ◽  
Distribution Systems ◽  
Key Distribution

High speed fiber-based quantum key distribution using polarization encoding

2005 ◽  
Author(s):  
Xiao Tang ◽  
Lijun Ma ◽  
Alan Mink ◽  
Anastase Nakassis ◽  
Barry Hershman ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
High Speed ◽  
Key Distribution ◽  
Polarization Encoding

Modeling of Quantum Key Distribution System for Secure Information Transfer

2014 ◽  
pp. 811-840
Author(s):  
K. E. Rumyantsev ◽  
D. M. Golubchikov
Keyword(s):  
Distribution System ◽  
Quantum Key Distribution ◽  
Information Transfer ◽  
Distribution Systems ◽  
Key Distribution ◽  
Photon State ◽  
Secure Information ◽  
Sequence Production ◽  
Security Infrastructure ◽  
Processing Algorithms

This chapter is an analysis of commercial quantum key distribution systems. Upon analysis, the generalized structure of QKDS with phase coding of a photon state is presented. The structure includes modules that immediately participate in the task of distribution and processing of quantum states. Phases of key sequence productions are studied. Expressions that allow the estimation of physical characteristics of optoelectronic components, as well as information processing algorithms impact to rate of key sequence production, are formed. Information security infrastructure can be utilized, for instance, to formulate requirements to maximize tolerable error level in quantum channel with a given rate of key sequence production.

Recent Advancement in High Speed and Secure Quantum Key Distribution: A Review

2021 ◽  
pp. 259-267
Author(s):  
Kamal Kishor Choure ◽  
Ankur Saharia ◽  
Nitesh Mudgal ◽  
Manish Tiwari ◽  
Ghanshyam Singh
Keyword(s):  
Quantum Key Distribution ◽  
High Speed ◽  
Key Distribution ◽  
Recent Advancement
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