Traceable Optical Physical Unclonable Functions Based on Germanium Vacancy in Diamonds
Fuhang Jiao1, Chaonan Lin1,2, Lin Dong1
1Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou 450052, China.
ACS Applied Materials & Interfaces
|August 6, 2024
Summary
This study introduces a novel traceable Physical Unclonable Function (PUF) system using germanium vacancy (GeV) diamonds for enhanced security. This innovative approach offers robust anticounterfeiting solutions for various commodities.
Area of Science:
- Materials Science
- Information Security
- Nanotechnology
Background:
- Physical Unclonable Functions (PUFs) offer unique security solutions due to their inherent unclonable physical patterns.
- Developing traceable optical PUF tags presents significant manufacturing and security challenges.
Purpose of the Study:
- To demonstrate a traceable PUF system leveraging the unique properties of germanium vacancies (GeV) within diamonds.
- To create tamper-resistant PUF labels suitable for diverse surfaces and applications.
Main Methods:
- Incorporating diamond particles with GeV into polydimethylsiloxane (PDMS) for label fabrication.
- Strategic deposition of PDMS-diamond mixtures onto object surfaces.
- Implementing a digitized "challenge-response" protocol for PUF authentication.
Main Results:
- The developed PUF codes exhibit high uniformity, uniqueness, and reproducibility.
- The system demonstrates substantial encoding capacity, suitable for private key applications.
- The GeV-PUF system is compatible with existing digital information technology.
Conclusions:
- The GeV-PUF system provides a traceable and highly secure solution for anticounterfeiting and data security.
- This technology holds promise for securing circulating commodities and integrating with blockchain applications.
