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Enhanced Anti-Counterfeiting Using Dynamic Encryption with Dual Physically Unclonable Functions.

Yanan Wang¹, Zhenfeng Zhang¹, Xun Yang¹

¹Henan Key Laboratory of Diamond Optoelectronic Material and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Laboratory of Zhongyuan Light, Zhengzhou University, Zhengzhou 450052, China.

ACS Applied Materials & Interfaces

|June 12, 2026

Summary

This summary is machine-generated.

This study introduces an advanced optical Physical Unclonable Function (PUF) tag utilizing Raman spectroscopy for enhanced security. The novel dual-encryption strategy with dynamic key assignment offers robust anticounterfeiting and information protection.

Keywords:

Raman dynamic encryption microwires multiple encryptions physical unclonable functions

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Area of Science:

Materials Science
Optoelectronics
Information Security

Background:

Physical unclonable functions (PUFs) are crucial for securing information by leveraging unique physical properties.
Existing PUF technologies face challenges in achieving high security and preventing counterfeiting.

Purpose of the Study:

To develop an advanced optical PUF tag with a multilayered encryption strategy.
To enhance information security and anticounterfeiting performance through novel techniques.

Main Methods:

Utilized Raman spectroscopy to detect multiple peaks from microwires (MWs) of various materials.
Implemented dual encryption using distinctive Raman peaks (Ga2O3 and ZnO) for key generation.
Employed Raman mapping for unique key generation and dynamic assignment (Key A/B).

Main Results:

Each PUF tag generated two unique keys based on Raman mapping.
High consistency was observed between keys from the same tag.
Significant differences were found between keys from different tags, confirming uniqueness.

Conclusions:

The developed optical PUF tag offers a robust dual-encryption strategy.
Dynamic key assignment further bolsters security levels against unauthorized access.
This approach significantly enhances information security and anticounterfeiting capabilities.