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arXiv · 2412.00387

A generalization of Burmester-Desmedt GKE based on a non-abelian finite group action

Daniel Camazón Portela·Álvaro Otero Sánchez·Juan Antonio López Ramos
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Abstract

The advent of large-scale quantum computers implies that our existing public-key cryptography infrastructure has become insecure. That means that the privacy of many mobile applications involving dynamic peer groups, such as multicast messaging or pay-per-view, could be compromised. In this work we propose a generalization of the well known group key exchange protocol proposed by Burmester and Desmedt to the non-abelian case by the use of finite group actions and we prove that the presented protocol is secure in Katz and Yung's model.

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Daniel Camazón Portela, Álvaro Otero Sánchez, Juan Antonio López Ramos. 2024-11-30. A generalization of Burmester-Desmedt GKE based on a non-abelian finite group action. https://arxiv.org/abs/2412.00387

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