Optical cryptosystem with complementary masks

Wenqing Sun; Haiping Zhang; Qiliang Teng; Jun Wang; Quanying Wu

doi:10.1117/12.2538518

18 November 2019 Optical cryptosystem with complementary masks

Wenqing Sun, Haiping Zhang, Qiliang Teng, Jun Wang, Quanying Wu

Proceedings Volume 11189, Optical Metrology and Inspection for Industrial Applications VI; 1118910 (2019) https://doi.org/10.1117/12.2538518
Event: SPIE/COS Photonics Asia, 2019, Hangzhou, China

Abstract

Optical encryption system is generally vulnerable to attacks based on phase retrieval algorithm. In this paper, an improved encryption scheme is proposed based on the coherent 4-f system and complementary masks. This pair of irregular shaped complementary masks are introduced to cut the ciphertext and regroup them. The stitched ciphertext has high immunity to ciphertext attacks based on phase retrieval algorithms. We have done numerically simulation to demonstrate the feasibility and validity of the proposed technique.

Citation Download Citation

Wenqing Sun, Haiping Zhang, Qiliang Teng, Jun Wang, and Quanying Wu "Optical cryptosystem with complementary masks", Proc. SPIE 11189, Optical Metrology and Inspection for Industrial Applications VI, 1118910 (18 November 2019); https://doi.org/10.1117/12.2538518

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