Results 61 to 70 of about 586 (166)

Programmable In‐Situ Interactions Between Resins and Photopolymerized Structures for Seamlessly Integrated Optical Manufacturing of Microlenses

Advanced Functional Materials, Volume 36, Issue 28, 7 April 2026.
This study presents a dynamic interaction between liquid resins and photopolymerized structures enabled by an in situ light‐writing setup. By controlling a three‐phase interface through localized photopolymerization, which provides physical confinement for the remaining uncured resin regions, the approach establishes a programmable pathway that ...
Kibeom Kim, Sangmin Oh, Kahyun Hur, Hyesung Cho   +3 more
wiley   +1 more source

Access Control in Healthcare IoT: A Comprehensive Survey

Engineering Reports, Volume 8, Issue 4, April 2026.
This survey analyses access control mechanisms in Healthcare IoT, reviewing traditional and emerging models, identifying security and privacy challenges, and highlighting open research issues. It provides a comparative perspective to support the design of secure, scalable, and patient‐centric healthcare IoT systems.
Aleena Nazir, Mubashir Husain Rehmani, Bernard Butler, Donna O'Shea   +3 more
wiley   +1 more source

Complex Cryptographic and User‐Centric Physically Unclonable Functions Enabled by Strain‐Sensitive Nanocrystals via Selective Ligand Exchange

Advanced Functional Materials, Volume 36, Issue 23, 19 March 2026.
This study investigates electromechanical PUFs that improve on traditional electric PUFs. The electron transport materials are coated randomly through selective ligand exchange. It produces multiple keys and a key with motion dependent on percolation and strain, and approaches almost ideal inter‐ and intra‐hamming distances.
Seungshin Lim, Hanseok Seo, Taesung Park, Byung Ku Jung, Junhyeok Park, Young Kyun Choi, Dae Yang Oh, Soong Ju Oh   +7 more
wiley   +1 more source

Synthesis of symmetric paths of arbiter physically unclonable function on FPGA

Informatika, 2019
Physical cryptography is one of the current trends among the existing methods of protecting digital devices from illegal access. Circuit design solutions in physical cryptography are called digital physically unclonable functions (PUFs), which to be ...
A. A. Ivaniuk
doaj  

Physical Unclonable Function [PDF]

, 2019
A Physical Unclonable Function (PUF) is hardware that acts as a one-way function, whose each different instance provides unique outputs for the same distinct input. Although recent research has demonstrated the merits of PUFs as security primitives for resource-constrained computer systems, better implementations of them need to be identified ...
openaire   +1 more source

Correction of Bit-Aliasing in Memristor-Based Physically Unclonable Functions With Timing Variability

IEEE Access, 2019
The dependence between the write time and process variation of a memristor was investigated as a candidate physically unclonable function (PUF). Such write-time-based approach requires exact timing control of the programming pulse to achieve well ...
Ha-Phuong Nguyen, The-Nghia Nguyen, Yeong-Seok Seo, Dosam Hwang, Donghwa Shin   +4 more
doaj   +1 more source

Silicon photonic physical unclonable function

Optics Express, 2017
Physical unclonable functions (PUFs) serve as a hardware source of private information that cannot be duplicated and have applications in hardware integrity and information security. Here we demonstrate a photonic PUF based on ultrafast nonlinear optical interactions in a chaotic silicon micro-cavity.
Brian C, Grubel, Bryan T, Bosworth, Michael R, Kossey, Hongcheng, Sun, A Brinton, Cooper, Mark A, Foster, Amy C, Foster   +6 more
openaire   +2 more sources

Computational optical physical unclonable functions

2017 International Carnahan Conference on Security Technology (ICCST), 2017
Physical unclonable functions (PUFs) are devices which are easily probed but difficult to predict. Optical PUFs have been discussed within the literature, with traditional optical PUFs typically using spatial light modulators, coherent illumination, and scattering volumes; however, these systems can be large, expensive, and difficult to maintain ...
Gabriel C. Birch, Bryana L. Woo, Charles F. LaCasse, Jaclynn J. Stubbs, Amber L. Dagel   +4 more
openaire   +2 more sources

Two-factor wearable device authentication protocol based on PUF and IPI

Tongxin xuebao, 2017
Wearable device is pushing the rapid development of mobile health,however,the open architecture of wireless body area network has brought challenges for the security of user data.In order to protect the security of user data,a two-factor authentication ...
Jun WANG, Shu-bo LIU, Cai LIANG, Yong-kai LI   +3 more
doaj   +2 more sources

Challenges in Modelling Analog PUFs: A Study of Hybrid and Diode Triode Current Mirror Inverter PUF Under Machine Learning Attacks

IET Circuits, Devices and Systems
Physically unclonable function-based authentication is one of the widely accepted and promising hardware security primitives. For security applications, strong PUF circuits can generate a large number of challenge–response pairs (CRPs) for authentication.
Gisha Chittattukara Girijan, Ananda Sankar Chakraborty, Rajat Subhra Chakraborty, Bijoy Antony Jose, Jimson Mathew   +4 more
doaj   +1 more source