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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

Physical unclonable functions (PUFs), as hardware security primitives, exploit manufacturing randomness to extract hardware instance-specific secrets. One of most popular structures is time-delay based Arbiter PUF attributing to large…

Cryptography and Security · Computer Science 2017-06-21 Yansong Gao , Said F. Al-Sarawi , Derek Abbott , Ahmad-Reza Sadeghi , Damith C. Ranasinghe

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

Wearable and implantable healthcare sensors are pivotal for real-time patient monitoring but face critical challenges in power efficiency, data security, and signal noise. This paper introduces a novel platform that leverages hardware noise…

Signal Processing · Electrical Eng. & Systems 2025-06-06 Christiana Chamon , Abhijit Sarkar , A. Lynn Abbott

Micron-scale randomness during manufacturing can ensure anti-counterfeiting labels are unclonable. However, this security typically comes at the expense of complex hardware being needed for authentication (e.g., microscopy systems). We…

Applied Physics · Physics 2022-03-28 Vinay Kumar , Stephan Dottermusch , Ngei Katumo , Bryce S. Richards , Ian A. Howard

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

In this article we describe the characteristics of a large integrated linear optical device containing Mach-Zehnder interferometers and describe its potential use as a physically unclonable function. We propose that any tunable…

Cryptography and Security · Computer Science 2020-12-22 A. Matthew Smith , H S. Jacinto

The negatively-charged nitrogen-vacancy center (NV) in diamond forms a versatile system for quantum sensing applications. Combining the advantageous properties of this atomic-sized defect with scanning probe techniques such as atomic force…

Mesoscale and Nanoscale Physics · Physics 2018-12-26 Philipp Fuchs , Michel Challier , Elke Neu

Security labels combining facile structural color readout and physically unclonable one-way function (PUF) approach provide promising strategy for fighting against forgery of marketable products. Here, we justify direct femtosecond-laser…

Security is of critical importance for the Internet of Things (IoT). Many IoT devices are resource-constrained, calling for lightweight security protocols. Physical unclonable functions (PUFs) leverage integrated circuits' variations to…

Cryptography and Security · Computer Science 2021-03-25 Yu Zhuang , Khalid T. Mursi , Li Gaoxiang

In order to protect devices from physical manipulations, protective security enclosures were developed. However, these battery-backed solutions come with a reduced lifetime, and have to be actively and continuously monitored. In order to…

Cryptography and Security · Computer Science 2022-11-21 Kathrin Garb , Marvin Xhemrishi , Ludwig Kürzinger , Christoph Frisch

The concept of Secret Unknown Ciphers (SUCs) was introduced a decade ago as a new visionary concept without devising practical real-world examples. The major contribution of this work is to show the feasibility of "self-mutating" unknown…

Cryptography and Security · Computer Science 2019-08-13 Ayoub Mars , Wael Adi

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

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…

Physical unclonable functions(PUFs) provide a unique fingerprint to a physical entity by exploiting the inherent physical randomness. Gao et al. discussed the vulnerability of most current-day PUFs to sophisticated machine learning-based…

Quantum Physics · Physics 2023-05-24 Kaushik Chakraborty , Mina Doosti , Yao Ma , Chirag Wadhwa , Myrto Arapinis , Elham Kashefi

We explore a new pathway to designing unclonable cryptographic primitives. We propose a new notion called unclonable puncturable obfuscation (UPO) and study its implications for unclonable cryptography. Using UPO, we present modular (and…

Cryptography and Security · Computer Science 2024-04-24 Prabhanjan Ananth , Amit Behera

Field Programmable Gate Array (FPGA)-based embedded systems have become mainstream in the last decade, often in security-sensitive applications. However, even with an authenticated hardware platform, compromised software can severely…

Cryptography and Security · Computer Science 2025-01-15 Sneha Swaroopa , Venkata Sreekanth Balijabudda , Rajat Subhra Chakraborty , Indrajit Chakrabarti

Physical Unclonable Functions (PUFs) have been proposed as a way to identify and authenticate electronic devices. Recently, several ideas have been presented that aim to achieve the same for quantum devices. Some of these constructions…

Quantum Physics · Physics 2022-06-24 Niklas Pirnay , Anna Pappa , Jean-Pierre Seifert

Electroless nickel plating is an established industrial process that provides a robust and relatively low-cost coating suitable for transporting and storing ultracold neutrons (UCN). Using roughness measurements and UCN-storage experiments…

The electronic properties of chemically functionalized nanodiamonds are studied using density functional theory calculations. HOMO-LUMO gap and relative stabilities are calculated for different surface functionalization schemes and diamond…

Materials Science · Physics 2014-03-26 Noam Brown , Oded Hod
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