首页|A Single-Sized Metasurface for Image Steganography and Multi-Key Information Encryption

A Single-Sized Metasurface for Image Steganography and Multi-Key Information Encryption

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With the escalating flow of information and digital communication,information security has become an increasingly important issue.Traditional cryptographic methods are being threatened by advancing pro-gress in computing,while physical encryption methods are favored as a viable and compelling avenue.Metasurfaces,which are known for their extraordinary ability to manipulate optical parameters at the nanoscale,exhibit significant potential for the revolution of optical devices,making them a highly promising candidate for optical encryption applications.Here,a single-sized metasurface with four inde-pendent channels is proposed for conducting steganography and multi-key information encryption.More specifically,plaintext is transformed into a ciphertext image,which is encoded into a metasurface,while the decryption key is discretely integrated into another channel within the same metasurface.Two dif-ferent keys for steganographic image unveiling are also encoded into the metasurface and can be retrieved with different channels and spatial positions.This distributed multi-key encryption approach can enhance security,while strategically distributing images across distinct spatial zones serves as an additional measure to reduce the risk of information leakage.This minimalist designed metasurface,with its advantages of high information density and robust security,holds promise across applications includ-ing portable encryption,high-camouflaged image display,and high-density optical storage.

MetasurfaceMulti-channelSteganographyEncryption

Congling Liang、Tian Huang、Qi Dai、Zile Li、Shaohua Yu

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Electronic Information School,Wuhan University,Wuhan 430072,China

Suzhou Institute of Wuhan University,Suzhou 215123 China

Peng Cheng Laboratory,Shenzhen 518055,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaChina Postdoctoral Science FoundationChina Postdoctoral Science FoundationNatural Science Foundation of Hubei ProvinceNatural Science Foundation of Jiangsu Province

12204359121742922022TQ02432022M7224482022CFB641BK20231210

2024

10.1016/j.eng.2024.04.015

工程(英文)

工程(英文)

CSTPCDEI
ISSN：2095-8099
年,卷(期)：2024.41(10)