一种光学物理不可克隆函数编码方法及其应用
By employing the 3-theta criterion to determine the encoding threshold and utilizing gold micro-nano particle dispersion technology in optical PUF encoding, the robustness problem of optical PUF encoding in complex optical environments is solved, thereby improving the accuracy of encoded data and the stability of authentication.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
- Filing Date
- 2024-01-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing optical PUF encoding methods suffer from low fluorescence image contrast under low-intensity excitation light and high-intensity background light conditions, resulting in poor robustness of encoded information and affecting the stability of optical PUF certification.
The 3-theta criterion was used to determine the encoding threshold. The weak absorption value on the substrate surface was obtained by photothermal scanning microscopy. Gold micro-nano particles were dispersed on the substrate surface. The absorption value was distinguished into high absorption state and low absorption state according to the encoding threshold, and 01 randomly distributed encoded data was generated.
It improves the robustness and accuracy of encoded data, enhances the stability of optical PUF certification, and optimizes the overall reliability of the optical PUF system.
Smart Images
Figure CN118397912B_ABST