Preliminary stage synchronization algorithm of auto-compensation quantum key distribution system with an unauthorized access security

Rumyantsev, Konstantin; Pljonkin, Anton

doi:10.1109/elinfocom.2016.7562955

Cited by 16 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Synchronization in self-compensating QKDSs consists in the high-accuracy measurement of the path length and propagation path of the optical emission from transceiver station to encoding station and vice versa. In this case, optical signals propagate in both directions in the same fiber-optic line [12][13][14][15][16][17]. It should be noted that, when measuring the total propagation length, one must consider not only the length of quantum channel between two stations but the length of each fiber-optic component inside the stations as well (Figure 1).…”

Section: Synchronization In a Qkdsmentioning

confidence: 99%

Synchronization in Quantum Key Distribution Systems

2017

View full text Add to dashboard Cite

Abstract:In the description of quantum key distribution systems, much attention is paid to the operation of quantum cryptography protocols. The main problem is the insufficient study of the synchronization process of quantum key distribution systems. This paper contains a general description of quantum cryptography principles. A two-line fiber-optic quantum key distribution system with phase coding of photon states in transceiver and coding station synchronization mode was examined. A quantum key distribution system was built on the basis of the scheme with automatic compensation of polarization mode distortions. Single-photon avalanche diodes were used as optical radiation detecting devices. It was estimated how the parameters used in quantum key distribution systems of optical detectors affect the detection of the time frame with attenuated optical pulse in synchronization mode with respect to its probabilistic and time-domain characteristics. A design method was given for the process that detects the time frame that includes an optical pulse during synchronization. This paper describes the main quantum communication channel attack methods by removing a portion of optical emission. This paper describes the developed synchronization algorithm that takes into account the time required to restore the photodetector's operation state after the photon has been registered during synchronization. The computer simulation results of the developed synchronization algorithm were analyzed. The efficiency of the developed algorithm with respect to synchronization process protection from unauthorized gathering of optical emission is demonstrated herein.

show abstract

Section: Synchronization In a Qkdsmentioning

confidence: 99%

Synchronization in Quantum Key Distribution Systems

2017

View full text Add to dashboard Cite

show abstract

“…In [11,12] the new synchronization algorithm with improved protection from unauthorized access was proposed. The feature of algorithm is using a single photon pulse as synchronization signal, herewith the average photons number is not more 0,1 per pulse.…”

Section: Figure 2 -Optical Pulse Propagation Way Between Stationsmentioning

confidence: 99%

Features of the Photon Pulse Detection Algorithm in the Quantum Key Distribution System

Pljonkin

2017

Proceedings of the 2017 International Conference on Cryptography, Security and Privacy

Self Cite

View full text Add to dashboard Cite

A two-pass fiber-optic quantum key distribution system with phase-encoded photon states in synchronization mode has been investigated. The possibility of applying the analytical expressions for the calculation of the correct detection probability of the signal time window at synchronization has been proved. A modernized algorithm of photon pulse detection, taking into account the dead time of the single-photon avalanche photodiode was proposed. The method of engineering an optical pulse detection process during the synchronization in a quantum key distribution system has been offered.

show abstract

“…The issues of synchronization of the receiving-transmitting and coding stations of the QKD system are studied by domestic [3][4][5][6][7][8][9] and foreign [10,11] scientists.…”

Section: Introductionmentioning

confidence: 99%

Methodology for calculating the average time of entry into synchronism of stations of the system of quantum key distribution with sequential polling of fiber-optic line sections with decreasing length by the graphic-analytical method

2020

View full text Add to dashboard Cite

A method is proposed for calculating the average time of entry into synchronism of stations of the system of quantum key distribution (QKD) with sequential polling of sections of a fiber-optic communication line (FOCL) with decreasing length. A diagram of states and transitions for a sequential search for a photon pulse is constructed. Analytical expressions are obtained for finding the probability of detecting a photon pulse, the average number of steps for entry into synchronism of stations, the variance of the number of steps and the average time for entry into connection. It is noted that when the FOCL is divided into sections with decreasing length, the level of dark current pulses (DCP) significantly decreases from section to section. The latter allows to reduce the probability of false alarms of the photodetector. The analysis of the results obtained showed that the time of entry into synchronism for the proposed algorithm is 3 times less than the time required for entry into communication of stations in the case of an algorithm-analogue. The results obtained indicate the possibility of increasing the length of the FOCL while ensuring the value of the synchronization error probability at the level of 0.01.

show abstract

Preliminary stage synchronization algorithm of auto-compensation quantum key distribution system with an unauthorized access security

Cited by 16 publications

References 3 publications

Synchronization in Quantum Key Distribution Systems

Synchronization in Quantum Key Distribution Systems

Features of the Photon Pulse Detection Algorithm in the Quantum Key Distribution System

Methodology for calculating the average time of entry into synchronism of stations of the system of quantum key distribution with sequential polling of fiber-optic line sections with decreasing length by the graphic-analytical method

Contact Info

Product

Resources

About