A quantum secret sharing scheme without monitoring signal disturbance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14330%2F19%3A00113868" target="_blank" >RIV/00216224:14330/19:00113868 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ijleo.2018.12.139" target="_blank" >http://dx.doi.org/10.1016/j.ijleo.2018.12.139</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijleo.2018.12.139" target="_blank" >10.1016/j.ijleo.2018.12.139</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A quantum secret sharing scheme without monitoring signal disturbance

Popis výsledku v původním jazyce

In order to improve the noise tolerability of quantum secret sharing, we propose a quantum secret sharing scheme based on a round-robin differential-phase-shift quantum key distribution (RRDPS-QKD) protocol, named RRDPS-QSS scheme. In the presented scheme, Alice prepares two L-bit weak coherent pulses (trains), and encodes two random bit sequences on each pulse of the two trains through phase modulation. Bob and Charlie measure received quantum signals and obtain the interference clicks and interference positions within their own measurement environment. With the announcement of their interference positions by Bob and Charlie, Alice can compute the QSS's sifted key, while Bob (Charlie) cannot obtain the sifted key without the help of the others. Finally, Alice, Bob, and Charlie could obtain a secret key via reconciliation and privacy amplification after getting enough sifted keys. The numerical simulation results show that the proposed scheme can produce a secure key without monitoring signal disturbance in quantum channels, and has a higher noise tolerance in comparison with the QSS scheme based on the BB84 protocol. The key generation rate of the proposed RRDPS-QSS scheme decreases with two transmission distances. The longer train length is and lower misalignment the error probability the RRDPS-QSS scheme has, the better the key generation rate performance the QSS scheme has.

Název v anglickém jazyce

A quantum secret sharing scheme without monitoring signal disturbance

Popis výsledku anglicky

In order to improve the noise tolerability of quantum secret sharing, we propose a quantum secret sharing scheme based on a round-robin differential-phase-shift quantum key distribution (RRDPS-QKD) protocol, named RRDPS-QSS scheme. In the presented scheme, Alice prepares two L-bit weak coherent pulses (trains), and encodes two random bit sequences on each pulse of the two trains through phase modulation. Bob and Charlie measure received quantum signals and obtain the interference clicks and interference positions within their own measurement environment. With the announcement of their interference positions by Bob and Charlie, Alice can compute the QSS's sifted key, while Bob (Charlie) cannot obtain the sifted key without the help of the others. Finally, Alice, Bob, and Charlie could obtain a secret key via reconciliation and privacy amplification after getting enough sifted keys. The numerical simulation results show that the proposed scheme can produce a secure key without monitoring signal disturbance in quantum channels, and has a higher noise tolerance in comparison with the QSS scheme based on the BB84 protocol. The key generation rate of the proposed RRDPS-QSS scheme decreases with two transmission distances. The longer train length is and lower misalignment the error probability the RRDPS-QSS scheme has, the better the key generation rate performance the QSS scheme has.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Optik

ISSN

0030-4026

e-ISSN

—

Svazek periodika

181

Číslo periodika v rámci svazku

March 2019

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

810-815

Kód UT WoS článku

000465157600103

EID výsledku v databázi Scopus

2-s2.0-85059442514