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Mobile and embedded devices are becoming inevitable parts of our daily routine. Similar to other electronic devices such as read access memory (RAM) and storage, mobile devices require to authenticate and to be authenticated in a secure…

Cryptography and Security · Computer Science 2019-01-23 Alireza Shamsoshoara

Physical Unclonable Functions (PUFs) are emerging as promising security primitives for IoT devices, providing device fingerprints based on physical characteristics. Despite their strengths, PUFs are vulnerable to machine learning (ML)…

Cryptography and Security · Computer Science 2024-06-11 Gaoxiang Li , Yu Zhuang

In this paper, we consider the generation and utilization of helper data for physical unclonable functions (PUFs) that provide real-valued readout symbols. Compared to classical binary PUFs, more entropy can be extracted from each basic…

Information Theory · Computer Science 2024-03-01 Robert F. H. Fischer

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 -…

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

In this paper, we introduce chemical functions, a unified framework that models chemical systems as noisy challenge--response primitives, and formalize the associated chemical function infrastructure. Building on the theory of physical…

Cryptography and Security · Computer Science 2026-01-21 Frederik Walter , Hrishi Narayanan , Jessica Bariffi , Anne Lüscher , Rawad Bitar , Robert Grass , Antonia Wachter-Zeh , Zohar Yakhini

Testability of digital ICs rely on the principle of controllability and observability. Adopting conventional techniques like scan-chains open up avenues for attacks, and hence cannot be adopted in a straight-forward manner for security…

Cryptography and Security · Computer Science 2018-10-23 Durba Chatterjee , Aritra Hazra , Debdeep Mukhopadhyay

The interest in "Physically Unclonable Function"-devices has increased rapidly over the last few years, as they have several interesting properties for system security related applications like, for example, the management of cryptographic…

Applications · Statistics 2014-09-30 Benjamin Hackl , Daniel Kurz , Clemens Heuberger , Jürgen Pilz , Martin Deutschmann

In this paper we experimentally evaluate a physical unclonable function based on a polymer optical waveguide, as a time-invariant, replication-resilient, source of entropy. The elevated physical unclonability of our implementation is…

In this work the novel usage of a physically unclonable function composed of a network of Mach-Zehnder interferometers for authentication tasks is described. The physically unclonable function hardware is completely reconfigurable, allowing…

Quantum Physics · Physics 2020-12-21 H S. Jacinto , A. Matthew Smith

We present a practical and highly secure method for the authentication of chips based on a new concept for implementing strong Physical Unclonable Function (PUF) on field programmable gate arrays (FPGA). Its qualitatively novel feature is a…

Cryptography and Security · Computer Science 2016-10-14 Alexander Spenke , Ralph Breithaupt , Rainer Plaga

Quantum Physical Unclonable Functions (QPUFs) are hardware-based cryptographic primitives with strong theoretical security. This security stems from their modeling as Haar-random unitaries. However, implementing such unitaries on…

Quantum Physics · Physics 2025-11-25 Soham Ghosh , Holger Boche , Marc Geitz

Ring oscillators (ROs) are a robust way to implement a physical unclonable function (PUF) into ASICs or FPGAs, but claims of predictability arose recently. We describe why this likely results from not using adjacent ROs for pairwise…

Signal Processing · Electrical Eng. & Systems 2019-10-17 Florian Wilde , Matthias Hiller , Michael Pehl

In this paper, an algebraic binning based coding scheme and its associated achievable rate for key generation using physically unclonable functions (PUFs) is determined. This achievable rate is shown to be optimal under the generated-secret…

Information Theory · Computer Science 2018-02-08 Yitao Chen , Muryong Kim , Sriram Vishwanath

Weak physical uncloneable function (WPUF) encryption key means that the manufacturer of the hardware can clone the key but anybody else is unable to so that. Strong physical uncloneable function (SPUF) encryption key means that even the…

Cryptography and Security · Computer Science 2013-12-18 Laszlo B. Kish , Chiman Kwan

Error correction is an indispensable component when Physical Unclonable Functions (PUFs) are used in cryptographic applications. So far, there exist schemes that obtain helper data, which they need within the error correction process. We…

Cryptography and Security · Computer Science 2016-11-09 Sven Müelich , Martin Bossert

In this letter, a physical unclonable function (PUF)-advanced encryption standard (AES)-PUF is proposed as a new PUF architecture by embedding an AES cryptographic circuit between two conventional PUF circuits to conceal their…

Cryptography and Security · Computer Science 2018-10-18 Weize Yu , Jia Chen

Physical unclonable functions (PUFs) involve challenging practical applications of error-correcting codes (ECCs), requiring extremely low failure rates on the order of $10^{-6}$ and below despite raw input bit error rates as high as 22%.…

Information Theory · Computer Science 2025-10-13 Marvin Rübenacke , Sebastian Cammerer , Michael Sullivan , Alexander Keller

Strong physical unclonable function (PUF) is a promising solution for device authentication in resourceconstrained applications but vulnerable to machine learning attacks. In order to resist such attack, many defenses have been proposed in…

Cryptography and Security · Computer Science 2019-11-14 Jiliang Zhang , Chaoqun Shen

As cloud-based quantum computing expands, securing access to quantum hardware is increasingly critical. We present an authentication protocol that leverages intrinsic quantum device properties to construct Quantum Physical Unclonable…

Quantum Physics · Physics 2025-09-10 Behnam Tonekaboni , Pranav Gokhale , Kaitlin N. Smith