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Learning complex scattering media for optical encryption

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Abstract

Optical encryption has provided a new insight for securing information; however, it is always desirable that high security can be achieved to withstand the attacks. In this Letter, we propose a new method via learning complex scattering media for optical encryption. After the recordings through complex scattering media, a designed learning model is trained. The proposed method uses an optical setup with complex scattering media to experimentally record the ciphertexts and uses a learning model to generate security keys. During the decryption, the trained learning model with its parameters is applied as security keys. In addition, various parameters, e.g., virtual phase-only masks, can be flexibly applied to further enlarge key space. It is experimentally demonstrated that the proposed learning-based encryption approach possesses high security. The proposed method could open up a new research perspective for optical encryption.

© 2020 Optical Society of America

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Corrections

Lina Zhou, Yin Xiao, and Wen Chen, "Learning complex scattering media for optical encryption: publisher’s note," Opt. Lett. 45, 5501-5501 (2020)
https://opg.optica.org/ol/abstract.cfm?uri=ol-45-19-5501

22 September 2020: A typographical correction was made to the funding section.


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