Abstract
As an anti-counterfeiting technology, physical unclonable function (PUF) is irreplaceable in addressing security risks in the Internet of Things. However, limited by the fixed structural shape, PUF security cannot be further improved. Here, we present a 5D spin-PUF with three sensing effects and two spatial parameters as encoding parameters. The free transformation of the spin state is regulated for dynamic anti-counterfeiting. Fabricated by the self-developed laser-induced technology, the 5D coding base units are composed with random crystal direction, height, and concentration of SiC nanocrystals with spin structures. Spin states are manipulated by temperature, magnetic fields, and microwaves as three additional dimensions. The number of challenge-response pairs increases exponentially to 4,097 with an encoding capacity of 1027,310,000. With an excellent Hamming distance and low autocorrelation coefficient, the recognition accuracy reaches more than 94% using DenseNet. Additionally, we demonstrate unique real-time anti-counterfeiting of product state information. It could potentially be a next-generation security strategy.
Original language | English (US) |
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Article number | 101924 |
Journal | Cell Reports Physical Science |
Volume | 5 |
Issue number | 4 |
DOIs | |
State | Published - Apr 17 2024 |
Bibliographical note
Publisher Copyright:© 2024 The Authors
Keywords
- anti-counterfeiting
- laser direct writing
- neural network
- physical unclonable functions
- silicon carbide color center
ASJC Scopus subject areas
- General Chemistry
- General Materials Science
- General Engineering
- General Energy
- General Physics and Astronomy