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Continuous variable controlled quantum dialogue and secure multiparty quantum computation

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73602312" target="_blank" >RIV/61989592:15310/20:73602312 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.worldscientific.com/doi/epdf/10.1142/S0219749920500094" target="_blank" >https://www.worldscientific.com/doi/epdf/10.1142/S0219749920500094</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1142/S0219749920500094" target="_blank" >10.1142/S0219749920500094</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Continuous variable controlled quantum dialogue and secure multiparty quantum computation

  • Original language description

    A continuous variable (CV) controlled quantum dialogue (QD) scheme is proposed. The scheme is further modified to obtain two other protocols of (CV) secure multiparty computation. The first one of these protocols provides a solution of two-party socialist millionaire problem, while the second protocol provides a solution for a special type of multi-party socialist millionaire problem which can be viewed as a protocol for multiparty quantum private comparison. It is shown that the proposed scheme of (CV) controlled (QD) can be performed using bipartite entanglement and can be reduced to obtain several other two- and three-party cryptographic schemes in the limiting cases. The security of the proposed scheme and its advantage over corresponding discrete variable (DV) counterpart are also discussed. Specifically, the ignorance of an eavesdropper, i.e., information encoded by Alice/Bob, in the proposed scheme is shown to be more than that in the corresponding (DV) scheme, and thus the present scheme is less prone to information leakage inherent with the (DV) (QD) based schemes. It is further established that the proposed scheme can be viewed as a (CV) counterpart of quantum cryptographic switch which allows a supervisor to control the information transferred between the two legitimate parties to a continuously varying degree.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10303 - Particles and field physics

Result continuities

  • Project

    <a href="/en/project/EF16_019%2F0000754" target="_blank" >EF16_019/0000754: Nanotechnologies for Future</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2020

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    INTERNATIONAL JOURNAL OF QUANTUM INFORMATION

  • ISSN

    0219-7499

  • e-ISSN

  • Volume of the periodical

    18

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    17

  • Pages from-to

    "2050009-1"-"2050009-17"

  • UT code for WoS article

    000563768100001

  • EID of the result in the Scopus database

    2-s2.0-85087088841