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28 December 2022 A novel encryption method combining software algorithm and spatial light modulator
Biao Wang, Yuxuan Zhang, Yuhan Ma, Tao Lv, Xuchen Wei, Jiacheng Xie, Xu He
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Proceedings Volume 12506, Third International Conference on Computer Science and Communication Technology (ICCSCT 2022); 1250604 (2022) https://doi.org/10.1117/12.2661821
Event: International Conference on Computer Science and Communication Technology (ICCSCT 2022), 2022, Beijing, China
Abstract
Images can convey information and needs to be protected, which is usually done by encryption. Traditional image encryption methods usually use software or hardware encryption, which has improvement approach in terms of better safety and robustness. And the study arouses sympathy to researchers based on both software and hardware encryption. This paper proposes an encryption method that combines software algorithm encryption and hardware encryption using a spatial light modulation (SLM) and 4f optical system. Firstly, the image is chaotically encrypted using the chaos encryption algorithm. Secondly, the discrete cosine transform (DCT) is adopted for further encryption based on chaos encryption picture. Thirdly, the cipher text image is transformed into the 4f system using SLM, which performs a random amplitude on the image to achieve hardware encryption. Finally, the simulation and experiment are performed to verify that the scheme, which shows that the method can realize the encryption and unencryption under the combination of software and hardware encryption. The proposed method has application value to guarantee the higher security of information.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Biao Wang, Yuxuan Zhang, Yuhan Ma, Tao Lv, Xuchen Wei, Jiacheng Xie, and Xu He "A novel encryption method combining software algorithm and spatial light modulator", Proc. SPIE 12506, Third International Conference on Computer Science and Communication Technology (ICCSCT 2022), 1250604 (28 December 2022); https://doi.org/10.1117/12.2661821
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KEYWORDS
Image encryption
Information security
Chaos
Charge-coupled devices
Image processing
Light sources
Spatial light modulators
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