Dual-band complex-amplitude metasurface empowered high security cryptography with ultra-massive encodable patterns.

ABSTRACT: The significance of a cryptograph method lies in its ability to provide high fidelity, high security, and large capacity. The emergence of metasurface-empowered cryptography offers a promising alternative due to its unparalleled wavefront modulation capabilities and easy integration with traditional schemes. However, the majority of reported strategies suffer from limited capacity as a result of restricted independent information channels. In this study, we present a novel method of cryptography that utilizes a dual-band complex-amplitude meta-hologram. The method allows for the encoding of 2²⁵ different patterns by combining a modified visual secret-sharing scheme (VSS) and a one-time-pad private key. The use of complex-amplitude modulation and the modified VSS enhances the qua

SUBMITTER: Gu Z 

PROVIDER: S-EPMC11465982 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature