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Secure communication is of paramount importance in modern society. Asymmetric cryptography methods such as the widely used RSA method allow secure exchange of information between parties who have not shared secret keys. However, the…

Physical layer authentication (PLA) uses inherent characteristics of the communication medium to provide secure and efficient authentication in wireless networks, bypassing the need for traditional cryptographic methods. With advancements…

Cryptography and Security · Computer Science 2025-08-14 Clifton Paul Robinson , Salvatore D'Oro , Tommaso Melodia

With the rapid advancement of 6G, identity authentication has become increasingly critical for ensuring wireless security. The lightweight and keyless Physical Layer Authentication (PLA) is regarded as an instrumental security measure in…

Signal Processing · Electrical Eng. & Systems 2026-03-24 Xiqi Cheng , Rui Meng , Xiaodong Xu , Haixiao Gao , Ping Zhang , Dusit Niyato

In this work, message authentication over noisy channels is studied. The model developed in this paper is the authentication theory counterpart of Wyner's wiretap channel model. Two types of opponent attacks, namely impersonation attacks…

Information Theory · Computer Science 2008-02-20 Lifeng Lai , Hesham El Gamal , H. Vincent Poor

The goal of physical layer security (PLS) is to make use of the properties of the physical layer, including the wireless communication medium and the transceiver hardware, to enable critical aspects of secure communications. In particular,…

Information Theory · Computer Science 2020-01-22 Mahdi Shakiba-Herfeh , Arsenia Chorti , H. Vince Poor

Physical Layer Authentication (PLA) exploits the spatial uniqueness of wireless channel characteristics in order to authenticate devices without recourse to higher-layer cryptographic protocols, which remain vulnerable to key compromise.…

Signal Processing · Electrical Eng. & Systems 2026-04-14 Sachinkumar B. Mallikarjun , Marvin Reski , Andreas Weinand , Hans D. Schotten

Nuclear monitoring must considered as high precedence against national security. Now with the increasing nuclear threats it is crucial to ensure that malicious entity never procure nuclear warheads. Which comprises the prevention of illegal…

Cryptography and Security · Computer Science 2021-03-23 Aysha Shabbir , Maryam Shabbir , Fahad Ahmad , Muhammad Rizwan

A basic model for key agreement with biometric or physical identifiers is extended to include measurements of a hidden source through a general broadcast channel (BC). An inner bound for strong secrecy, maximum key rate, and minimum…

Information Theory · Computer Science 2020-03-05 Onur Günlü , Rafael F. Schaefer , Gerhard Kramer

Identification and authentication are two basic functionalities of traditional random access protocols. In ALOHA-based random access, the packets usually include a field with a unique user address. However, when the number of users is…

We consider keyless authentication for point-to-point communication in the presence of a myopic adversary. In particular, the adversary has access to a non-causal noisy version of the transmission and may use this knowledge to choose the…

Information Theory · Computer Science 2020-01-23 Allison Beemer , Eric Graves , Joerg Kliewer , Oliver Kosut , Paul Yu

In this paper, we exploit the cell-free massive multiple-input multiple-output (CF-mMIMO) architecture to design a physical-layer authentication (PLA) framework that can simultaneously authenticate multiple distributed users across the…

Signal Processing · Electrical Eng. & Systems 2025-08-28 Isabella W. G. da Silva , Zahra Mobini , Hien Quoc Ngo , Michail Matthaiou

Unsourced random access (URA) has emerged as a promising paradigm for enabling massive connectivity in Internet-of-Things (IoT) networks. However, since URA transmissions do not contain device identifiers, the receiver may not associate…

Signal Processing · Electrical Eng. & Systems 2026-05-19 Wenbo Fan , Zeping Sui , Yuhei Takahashi , Jun Cheng , Zilong Liu , Pingzhi Fan

The design of robust wireless communication systems for industrial applications such as closed loop control processes has been considered manifold recently. Additionally, the ongoing advances in the area of connected mobility have similar…

Networking and Internet Architecture · Computer Science 2017-11-15 Andreas Weinand , Michael Karrenbauer , Raja Sattiraju , Hans D. Schotten

This paper investigates the secret key authentication capacity region. Specifically, the focus is on a model where a source must transmit information over an adversary controlled channel where the adversary, prior to the source's…

Information Theory · Computer Science 2020-01-07 Jake Perazzone , Eric Graves , Paul Yu , Rick Blum

This paper presents a method of cryptographic key distribution using an `artificially' noisy channel. This is an important development because, while it is known that a noisy channel can be used to generate unconditional secrecy, there are…

Information Theory · Computer Science 2012-12-04 Benjamin T. H. Varcoe

In this paper we assess the security performance of key-less physical layer authentication schemes in the case of time-varying fading channels, considering both partial and no channel state information (CSI) on the receiver's side. We first…

Cryptography and Security · Computer Science 2019-09-19 Linda Senigagliesi , Marco Baldi , Ennio Gambi

This paper presents a physical layer authentication (PLA) technique using information reconciliation in multiuser communication systems. A cost-effective solution for low-end Internet of Things networks can be provided by PLA. In this work,…

Cryptography and Security · Computer Science 2025-05-19 Atsu Kokuvi Angélo Passah , Arsenia Chorti , Rodrigo C. de Lamare

Leakage of information in power line communication networks is a threat to privacy and security both in smart grids and in-home applications. A way to enhance security is to encode the transmitted information with a secret key. Relying on…

Cryptography and Security · Computer Science 2020-04-14 Federico Passerini , Andrea M. Tonello

Physical layer approaches for generating secret encryption keys for wireless systems using channel information have attracted increased interest from researchers in recent years. This paper presents a new approach for calculating…

Information Theory · Computer Science 2023-07-11 John A. Snoap

We consider the problem of identification and authentication based on secret key generation from some user-generated source data (e.g., a biometric source). The goal is to reliably identify users pre-enrolled in a database as well as…

Information Theory · Computer Science 2015-08-07 Kittipong Kittichokechai , Giuseppe Caire