Cryptanalysis of a Group Key Establishment Protocol

In this paper, we analyze the security of a group key establishment scheme proposed by López-Ramos et al. This proposal aims at allowing a group of users to agree on a common key. We present several attacks against the security of the proposed protocol. In particular, an active attack is presented,...

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Main Authors: Jorge Martínez Carracedo, Adriana Suárez Corona
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/13/2/332
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author Jorge Martínez Carracedo
Adriana Suárez Corona
author_facet Jorge Martínez Carracedo
Adriana Suárez Corona
author_sort Jorge Martínez Carracedo
collection DOAJ
description In this paper, we analyze the security of a group key establishment scheme proposed by López-Ramos et al. This proposal aims at allowing a group of users to agree on a common key. We present several attacks against the security of the proposed protocol. In particular, an active attack is presented, and it is also proved that the protocol does not provide forward secrecy.
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spelling doaj.art-a2e2c7a0d12b4023b2b809a4acb0b3b42023-12-11T17:26:06ZengMDPI AGSymmetry2073-89942021-02-0113233210.3390/sym13020332Cryptanalysis of a Group Key Establishment ProtocolJorge Martínez Carracedo0Adriana Suárez Corona1School of Computing and Mathematics, Ulster University, Belfast BT37 0QB, UKDepartment of Mathematical Sciences, Universidad de León, 24071 León, SpainIn this paper, we analyze the security of a group key establishment scheme proposed by López-Ramos et al. This proposal aims at allowing a group of users to agree on a common key. We present several attacks against the security of the proposed protocol. In particular, an active attack is presented, and it is also proved that the protocol does not provide forward secrecy.https://www.mdpi.com/2073-8994/13/2/332cryptanalysisgroup key establishment
spellingShingle Jorge Martínez Carracedo
Adriana Suárez Corona
Cryptanalysis of a Group Key Establishment Protocol
Symmetry
cryptanalysis
group key establishment
title Cryptanalysis of a Group Key Establishment Protocol
title_full Cryptanalysis of a Group Key Establishment Protocol
title_fullStr Cryptanalysis of a Group Key Establishment Protocol
title_full_unstemmed Cryptanalysis of a Group Key Establishment Protocol
title_short Cryptanalysis of a Group Key Establishment Protocol
title_sort cryptanalysis of a group key establishment protocol
topic cryptanalysis
group key establishment
url https://www.mdpi.com/2073-8994/13/2/332
work_keys_str_mv AT jorgemartinezcarracedo cryptanalysisofagroupkeyestablishmentprotocol
AT adrianasuarezcorona cryptanalysisofagroupkeyestablishmentprotocol