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Secure multiparty quantum key agreement against collusive attacks

Scientific reports, 2021-05, Vol.11 (1), p.9456-9456, Article 9456 [Peer Reviewed Journal]

The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2021 ;ISSN: 2045-2322 ;EISSN: 2045-2322 ;DOI: 10.1038/s41598-021-88837-w ;PMID: 33947890

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  • Title:
    Secure multiparty quantum key agreement against collusive attacks
  • Author: Abulkasim, Hussein ; Mashatan, Atefeh ; Ghose, Shohini
  • Subjects: Agreements ; Site planning
  • Is Part Of: Scientific reports, 2021-05, Vol.11 (1), p.9456-9456, Article 9456
  • Description: Quantum key agreement enables remote participants to fairly establish a secure shared key based on their private inputs. In the circular-type multiparty quantum key agreement mode, two or more malicious participants can collude together to steal private inputs of honest participants or to generate the final key alone. In this work, we focus on a powerful collusive attack strategy in which two or more malicious participants in particular positions, can learn sensitive information or generate the final key alone without revealing their malicious behaviour. Many of the current circular-type multiparty quantum key agreement protocols are not secure against this collusive attack strategy. As an example, we analyze the security of a recently proposed multiparty key agreement protocol to show the vulnerability of existing circular-type multiparty quantum key agreement protocols against this collusive attack. Moreover, we design a general secure multiparty key agreement model that would remove this vulnerability from such circular-type key agreement protocols and describe the necessary steps to implement this model. The proposed model is general and does not depend on the specific physical implementation of the quantum key agreement.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2045-2322
    EISSN: 2045-2322
    DOI: 10.1038/s41598-021-88837-w
    PMID: 33947890
  • Source: PubMed Central
    ProQuest Central
    DOAJ Directory of Open Access Journals

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