Geração de Tags para Autenticação em Camada Física Utilizando Sequências Caóticas Discretizadas

Davi C. M. de Almeida, Daniel P B Chaves, Cecilio Pimentel

DOI: 10.14209/sbrt.2023.1570922444

Evento: XLI Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2023)

Keywords: autenticação em camada física geração de tags mapas caóticos segurança

Abstract

In this work, we analyze a physical layer authentication method that employs a message authentication code, called tag, which is transmitted along with a message to ensure robust authentication. While previous studies primarily use cryptographic hash functions for tag generation, our system utilizes discrete one-dimensional chaotic maps to generate them. Through an information theory-based approach, we quantify the minimum level of security provided by the proposed system, which is non-zero even in noiseless environments. A security analysis of the system is conducted for the scenario where an attacker intercepts multiple legitimate message-tag pairs.

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