Secure multiparty quantum key agreement against collusive attacks

Abstract 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 g...

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Autores principales:	Hussein Abulkasim, Atefeh Mashatan, Shohini Ghose
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2b7496bb41a0415eb2b48c2bc01a6a9d
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spelling	oai:doaj.org-article:2b7496bb41a0415eb2b48c2bc01a6a9d2021-12-02T14:29:10ZSecure multiparty quantum key agreement against collusive attacks10.1038/s41598-021-88837-w2045-2322https://doaj.org/article/2b7496bb41a0415eb2b48c2bc01a6a9d2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88837-whttps://doaj.org/toc/2045-2322Abstract 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.Hussein AbulkasimAtefeh MashatanShohini GhoseNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hussein Abulkasim Atefeh Mashatan Shohini Ghose Secure multiparty quantum key agreement against collusive attacks
description	Abstract 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.
format	article
author	Hussein Abulkasim Atefeh Mashatan Shohini Ghose
author_facet	Hussein Abulkasim Atefeh Mashatan Shohini Ghose
author_sort	Hussein Abulkasim
title	Secure multiparty quantum key agreement against collusive attacks
title_short	Secure multiparty quantum key agreement against collusive attacks
title_full	Secure multiparty quantum key agreement against collusive attacks
title_fullStr	Secure multiparty quantum key agreement against collusive attacks
title_full_unstemmed	Secure multiparty quantum key agreement against collusive attacks
title_sort	secure multiparty quantum key agreement against collusive attacks
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2b7496bb41a0415eb2b48c2bc01a6a9d
work_keys_str_mv	AT husseinabulkasim securemultipartyquantumkeyagreementagainstcollusiveattacks AT atefehmashatan securemultipartyquantumkeyagreementagainstcollusiveattacks AT shohinighose securemultipartyquantumkeyagreementagainstcollusiveattacks
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Secure multiparty quantum key agreement against collusive attacks

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