Metasurface-enabled optical encryption and steganography with enhanced information security DOI Creative Commons
Xing Wen,

Chunlan Bu,

Xiaoyi Zhang

et al.

Nanophotonics, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Metasurfaces have attracted considerable interest in optical encryption due to their remarkable ability manipulate light at subwavelength scales, however the aspect of security remains an area requiring deeper exploration. Here, we propose and demonstrate metasurface-enabled steganography that provides dual-layer information protection. A secret is embedded within multiple carrier images using a run-length encoding algorithm, dispersing data safeguard it against direct observation brute-force attacks, thereby establishing first layer security. The second achieved by onto silicon metasurface, leveraging wavelength polarization generate diverse keys post-steganography. To validate proposed scheme, several metasurface samples are fabricated characterized visible spectrum. By adjusting various combinations keys, three encrypted retrieved with high fidelity negligible crosstalk, concealed successfully extracted through corresponding decryption algorithm. approach enhances hardware level, making less susceptible leakage. It anticipated demonstrated advancement will hold significant potential for applications anti-counterfeiting.

Language: Английский

Metasurface-enabled optical encryption and steganography with enhanced information security DOI Creative Commons
Xing Wen,

Chunlan Bu,

Xiaoyi Zhang

et al.

Nanophotonics, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Metasurfaces have attracted considerable interest in optical encryption due to their remarkable ability manipulate light at subwavelength scales, however the aspect of security remains an area requiring deeper exploration. Here, we propose and demonstrate metasurface-enabled steganography that provides dual-layer information protection. A secret is embedded within multiple carrier images using a run-length encoding algorithm, dispersing data safeguard it against direct observation brute-force attacks, thereby establishing first layer security. The second achieved by onto silicon metasurface, leveraging wavelength polarization generate diverse keys post-steganography. To validate proposed scheme, several metasurface samples are fabricated characterized visible spectrum. By adjusting various combinations keys, three encrypted retrieved with high fidelity negligible crosstalk, concealed successfully extracted through corresponding decryption algorithm. approach enhances hardware level, making less susceptible leakage. It anticipated demonstrated advancement will hold significant potential for applications anti-counterfeiting.

Language: Английский

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