Journal
POLYMERS
Volume 13, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/polym13091358
Keywords
optical encryption; photopolymer; computer holographic holograms printing; advanced encryption standard; Gerchberg-Saxton algorithm
Categories
Funding
- Key R&D Project of Hunan Province [2018WK2101]
- International Collaboration Project of Shenzhen [GJHZ20190821164405428]
- National Natural Science Foundation of China [61775117]
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The study presents an optical encryption method based on computer-generated holograms printing of photopolymer. Experimental results show that large-size encrypted QR code and miniature keys can be printed in photopolymers, with advantages of high-density storage, high speed, large fault tolerance, and anti-peeping, suggesting good application prospects in optical encryption.
An optical encryption method based on computer generated holograms printing of photopolymer is presented. Fraunhofer diffraction is performed based on the Gerchberg-Saxton algorithm, and a hologram of the Advanced Encryption Standard encrypted Quick Response code is generated to record the ciphertext. The holograms of the key and the three-dimensional image are generated by the angular spectrum diffraction algorithm. The experimental results show that large-size encrypted Quick Response (QR) code and miniature keys can be printed in photopolymers, which has good application prospects in optical encryption. This method has the advantages of high-density storage, high speed, large fault tolerance, and anti-peeping.
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