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Article

Cryptanalysis of a Group Key Establishment Protocol

1
School of Computing and Mathematics, Ulster University, Belfast BT37 0QB, UK
2
Department of Mathematical Sciences, Universidad de León, 24071 León, Spain
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Juan Alberto Rodríguez Velázquez and Alejandro Estrada-Moreno
Symmetry 2021, 13(2), 332; https://doi.org/10.3390/sym13020332
Received: 20 January 2021 / Revised: 7 February 2021 / Accepted: 9 February 2021 / Published: 17 February 2021
(This article belongs to the Special Issue Theoretical Computer Science and Discrete Mathematics)
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. View Full-Text
Keywords: cryptanalysis; group key establishment cryptanalysis; group key establishment
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MDPI and ACS Style

Carracedo, J.M.; Corona, A.S. Cryptanalysis of a Group Key Establishment Protocol. Symmetry 2021, 13, 332. https://doi.org/10.3390/sym13020332

AMA Style

Carracedo JM, Corona AS. Cryptanalysis of a Group Key Establishment Protocol. Symmetry. 2021; 13(2):332. https://doi.org/10.3390/sym13020332

Chicago/Turabian Style

Carracedo, Jorge M.; Corona, Adriana S. 2021. "Cryptanalysis of a Group Key Establishment Protocol" Symmetry 13, no. 2: 332. https://doi.org/10.3390/sym13020332

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