Physically Unclonable Surfaces
Our research on Physically Unclonable Surfaces focuses on creating surface-based security architectures that exploit the inherent randomness of solid-state additive manufacturing. We generate Physical Unclonable Functions (PUFs) with unique micro/nano-scale textures that act as physical fingerprints for smart part authentication and traceability. These surfaces are digitally converted through image processing and feature encoding into distinctive identifiers, enabling tamper-proof verification and counterfeit prevention.
Our current work explores:
- Process-signature correleations
- Algorithmic and AI-driven authentication frameworks
- Multimodal PUF integration via optical, topographical, and electrical surface responses
- Cybersecurity and Blockchain integration
- J. Jeon, FT. Zohora, S. Akin, "Direct-writing of physical unclonable function (PUF)-augmented QR codes for cyberph-pysical authentication", North American Manufacturing Research Conference (NAMRC-53) (Under Revision).
- J. Jeon, S. Akin, "Physically unclonable surfaces enabled by cold spray deposition", ACS Applied Materials & Interfaces, 2026. [Link]
- C. Han, T. Gabor, H. Lee, J. Lee, S. Akin, MBG. Jun, "Pulsed cold spray system for physical unclonable function generation", Procedia CIRP, 2025. [Link]