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Scalable Photo-Responsive Physical Unclonable Functions via Particle Kinetics
Uihoon Jung1,2, Chang-Jae Beak2, Kitae Kim3
1School of Electronic and Electrical Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, Republic of Korea.
ACS Nano
|September 30, 2024
Summary
This study introduces a scalable platform for creating physically unclonable functions using oxide particle kinetics. These novel security features offer robust protection against counterfeiting and data theft in micro- and nanoelectronics.
Area of Science:
- Materials Science
- Nanotechnology
- Physical Chemistry
Background:
- Counterfeiting and information theft pose significant threats to micro- and nanoelectronic security.
- Current anticounterfeiting and cryptographic methods face scalability limitations due to reliance on physical phenomena variability.
- There is a critical need for scalable security platforms for micro- and nanoelectronics.
Purpose of the Study:
- To develop a scalable platform for photoresponsive physically unclonable functions (PUFs).
- To create robust and compact security systems for anticounterfeiting and cryptographic applications.
- To demonstrate the resilience of these PUFs against machine-learning attacks.
Main Methods:
- Utilizing oxide particle kinetics in polymer solutions to create random patterns.
- Employing stochastic agglomeration during polymer film formation for micro- to nanoscale pixel generation.
- Developing both optical PUFs on flexible polymer films and electrical PUFs using UV ozone treatment with aggregate masks.
Main Results:
- Achieved scalable pixel sizes from micro to nanoscales.
- Produced mechanically flexible and self-destructible optical PUF patterns.
- Generated electrical PUF patterns with high resilience against machine-learning attacks (∼50% prediction error).
Conclusions:
- The developed scalable platforms offer a hardware solution for robust cryptographic applications.
- The photoresponsive PUFs provide a novel approach to anticounterfeiting and data security.
- The technology demonstrates significant potential for securing micro- and nanoelectronic devices.
