Paintable Physical Unclonable Function using DNA liquid crystal
발표자
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초록
내용
Controversy over the artwork's authenticity is still ongoing despite numerous technologies for copyright protection. The artists make every effort to avoid these mishaps by issuing a certificate of authenticity for themselves or preserving their work prior to the second public transaction. However, given a lack of expertise in information security, the identification is vulnerable to forgery. Here, we propose a platform for developing anticounterfeiting labels based on physical unclonable function (PUF) in an artist-friendly manner, brushstrokes. Deoxyribonucleic acid (DNA), which is nature-born, biocompatible, and eco-friendly, can be applied as a paint that shows the entropy-driven buckling instability of the liquid crystal (LC) phase. The line-shaped defect structures with inherent randomness become as a source of PUF in the dried DNA film, and their performance and reliability are systematically investigated.