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Programmable Physical Unclonable Functions Using Randomly Anisotropic Two-Dimensional Flakes.

Ping Chen^1,2, Dongyan Li¹, Zexin Li¹

¹State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, People's Republic of China.

|November 20, 2023

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This summary is machine-generated.

This study introduces novel high-security physical unclonable functions (PUFs) using polarized luminescence from rare earth materials. These advanced PUFs offer enhanced randomness and a massive encoding capacity for secure authentication.

Area of Science:

Materials Science
Optoelectronics
Cryptography

Background:

Conventional physical unclonable functions (PUFs) suffer from security limitations due to their static, single-channel nature.
Dynamic transformations are needed to enhance the security and capacity of PUF devices.

Purpose of the Study:

To develop high-security PUFs leveraging polarized luminescence.
To explore the potential of anisotropic rare earth materials for advanced authentication.

Main Methods:

Fabrication of PUFs using anisotropic rare earth (RE) material Er3O4Cl flakes with chaotic luminescent patterns.
Utilizing polarized luminescence for dynamic transformations and randomness generation.
Development of a convolutional neural network (CNN) for intelligent authentication.

Keywords:

Er3O4Cl physical unclonable functions polarized luminescence rare earth two-dimensional materials

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Main Results:

Achieved strong randomness in PUF responses under different polarizations (44% similarity for different PUFs).
Demonstrated a high encoding capacity of 2^380000.
CNN achieved 99.8% accuracy in authentication within 5 epochs.

Conclusions:

Polarized luminescence control of Er3O4Cl patterns significantly enhances PUF security and capacity.
The developed PUFs offer a promising solution for next-generation secure authentication.
CNN-based authentication provides a fast and accurate method for PUF verification.