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Physical unclonable functions (PUFs) are hardware structures in a physical system (e.g. semiconductor, crystals etc.) that are used to enable unique identification of the semiconductor or to secure keys for cryptographic processes. A PUF…

Quantum Physics · Physics 2023-09-19 Vladlen Galetsky , Soham Ghosh , Christian Deppe , Roberto Ferrara

This paper presents a dual-factor authentication protocol and its low-power implementation for security of implantable medical devices (IMDs). The protocol incorporates traditional cryptographic first-factor authentication using Datagram…

The exponentially increasing number of ubiquitous wireless devices connected to the Internet in Internet of Things (IoT) networks highlights the need for a new paradigm of data flow management in such large-scale networks under software…

Cryptography and Security · Computer Science 2017-12-29 Fatemeh Afghah , Bertrand Cambou , Masih Abedini , Sherali Zeadally

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

Quantum Key Distribution (QKD) enables Information-Theoretically Secure (ITS) key exchange, robust even against future quantum computing threats. However, a fundamental limitation of QKD is the requirement for an authenticated classical…

Quantum Physics · Physics 2026-05-07 Nicolas Laurent-Puig , Mina Doosti , Adriano Innocenzi , Eleni Diamanti

User authentication in future wireless communication networks is expected to become more complicated due to their large scale and heterogeneity. Furthermore, the computational complexity of classical cryptographic approaches based on public…

Signal Processing · Electrical Eng. & Systems 2024-04-22 Atsu Kokuvi Angélo Passah , Rodrigo C. de Lamare , Arsenia Chorti

Quantum Physical Unclonable Functions (QPUFs) offer a physically grounded approach to secure authentication, extending the capabilities of classical PUFs. This review covers their theoretical foundations and key implementation challenges -…

Password security can no longer provide enough security in the area of remote user authentication. Considering this security drawback, researchers are trying to find solution with multifactor remote user authentication system. Recently,…

Cryptography and Security · Computer Science 2017-11-06 Hossen Asiful Mustafa , Hasan Muhammad Kafi

Counterfeit products pose significant risks to public health and safety through infiltrating untrusted supply chains. Among numerous anti-counterfeiting techniques, leveraging inherent, unclonable microscopic irregularities of paper…

Cryptography and Security · Computer Science 2025-12-11 Anirudh Nakra , Nayeeb Rashid , Chau-Wai Wong , Min Wu

Nowadays, due to the growing phenomenon of forgery in many fields, the interest in developing new anti-counterfeiting device and cryptography keys, based on the Physical Unclonable Functions (PUFs) paradigm, is widely increased. PUFs are…

Cryptography and Security · Computer Science 2026-03-06 Giuseppe Emanuele Lio , Mauro Daniel Luigi Bruno , Francesco Riboli , Sara Nocentini , Antonio Ferraro

In recent years, radio frequency identification technology has moved into the mainstream applications that help to speed up handling of manufactured goods and materials. RFID tags are divided into two classes: active and passive. Active tag…

Cryptography and Security · Computer Science 2012-07-12 Amol Bandal , Shankar Nawale

Despite being more secure and strongly promoted, two-factor (2FA) or multi-factor (MFA) schemes either fail to protect against recent phishing threats such as real-time MITM, controls/relay MITM, malicious browser extension-based phishing…

Cryptography and Security · Computer Science 2024-06-14 Sneha Shukla , Gaurav Varshney , Shreya Singh , Swati Goel

The heterogeneous cellular network (HCN) is a promising approach to the deployment of 5G cellular networks. This paper comprehensively studies physical layer security in a multi-tier HCN where base stations (BSs), authorized users and…

Information Theory · Computer Science 2016-01-08 Hui-Ming Wang , Tong-Xing Zheng , Jinhong Yuan , Don Towsley , Moon Ho Lee

While existing security protocols were designed with a focus on the core network, the enhancement of the security of the B5G access network becomes of critical importance. Despite the strengthening of 5G security protocols with respect to…

Cryptography and Security · Computer Science 2022-12-02 Miroslav Mitev , Arsenia Chorti , H. V. Poor , Gerhard Fettweis

As a promising physical layer security technique, physical layer key generation (PLKG) enables legitimate users to obtain secret keys from wireless channel without security infrastructures. However, in harsh propagation environments, the…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Jiacheng Guo , Ning Gao , Yiping Zuo , Hao Xu , Shi Jin , Kai Kit Wong

We propose a novel Hybrid Key Growing (HKG) protocol based on quantum principles and a classical physical-layer assumption. We simultaneously exploit the quantum photon-number and photon-time-bin Degrees of Freedom (DoFs), effectively…

Quantum Physics · Physics 2025-09-22 Pol Julià Farré , Chris Aaron Schneider , Christian Deppe

Strong authentication in an interconnected wireless environment continues to be an important, but sometimes elusive goal. Research in physical-layer authentication using channel features holds promise as a technique to improve network…

Signal Processing · Electrical Eng. & Systems 2020-09-01 Ken St. Germain , Frank Kragh

As modern cyber systems scale to include large populations of heterogeneous IoT devices, securing them against impersonation and forgery is a critical cybersecurity challenge. Physical Unclonable Functions (PUFs) offer a lightweight,…

Cryptography and Security · Computer Science 2026-05-11 Xin Wang , Peichun Hua , Chip Hong Chang , Wenye Liu , Yue Zheng

This letter proposes a new physical layer authentication mechanism operating at the physical layer of a communication system where the receiver has partial control of the channel conditions (e.g., using an intelligent reflecting surface).…

Information Theory · Computer Science 2025-01-30 Laura Crosara , Mahtab Mirmohseni , Stefano Tomasin

As healthcare systems become increasingly interconnected, ensuring secure and continuous device authentication in health information exchange (HIE) networks is critical to safeguarding patient data and clinical operations. In this context,…

Cryptography and Security · Computer Science 2026-04-30 Khalid M. Ezzat , Muhammad El-Saba , Mahmoud A. Shawky