A User Centric Group Authentication Scheme for Secure Communication
Oylum Gerenli, Gunes Karabulut-Kurt, Enver Ozdemir

TL;DR
This paper introduces an improved group authentication scheme that enhances third-generation GAS by enabling user identification and preventing credential sharing, thereby increasing security for group communications.
Contribution
The paper proposes a novel third-generation GAS using inner product spaces and polynomial interpolation to address user identification and credential sharing issues.
Findings
Mitigates credential sharing among group members.
Enables user identification within the group.
Addresses security vulnerabilities in existing GAS methods.
Abstract
Group Authentication Schemes (GAS) are methodologies developed to verify the membership of multiple users simultaneously. These schemes enable the concurrent authentication of several users while eliminating the need for a certification authority. Numerous GAS methods have been explored in the literature, and they can be classified into three distinct generations based on their foundational mathematical principles. First-generation GASs rely on polynomial interpolation and the multiplicative subgroup of a finite field. Second-generation GASs also employ polynomial interpolation, but they distinguish themselves by incorporating elliptic curves over finite fields. While third-generation GASs present a promising solution for scalable environments, they demonstrate a limitation in certain applications. Such applications typically require the identification of users participating in the…
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Taxonomy
TopicsSecurity in Wireless Sensor Networks · Advanced Authentication Protocols Security · Cryptography and Data Security
