Optical Encryption Scheme with Double Secret Keys Based on Computational Ghost Imaging

Fei, 曹非 Cao; Shengmei, 赵生妹 Zhao

doi:10.3788/aos201737.0111001

Cited by 3 publications

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“…The emergence of computational GI makes it possible to use GI for optical encryption. Cao [4] proposed an optical encryption scheme with double secret keys based on computational GI. GI is applied to optical encryption, which has non-local imaging and good security, but GI needs a lot of correlation calculations to reconstruct the image.…”

Section: Introductionmentioning

confidence: 99%

Research on a big data information optical double encryption algorithm based on compressive ghost imaging

2019

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Ghost imaging (GI) has the characteristics of nonlocality and high resolution, which makes it different from traditional optical imaging. Therefore, GI has great development prospects in image information encryption. Due to the characteristics of GI, images with a large amount of information require a large amount of correlation calculation and reconstruction time during imaging. In this paper, a big data information optical double encryption algorithm based on compressive GI is proposed. The combination of Arnold mapping, QR codes and compressive ghost images can reduce the amount of information transmission and improve the resolution of the reconstructed image. It can not only break the limitation of the image information in traditional GI, but also enhance the security of the encryption image algorithm.

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Section: Introductionmentioning

confidence: 99%

Research on a big data information optical double encryption algorithm based on compressive ghost imaging

2019

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Computational ghost imaging encryption based on fingerprint phase mask

Zhu

Yang

Meng

et al. 2018

Optics Communications

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多维调制的全息加密光存储

Lin Dakui,

Song Haiyang,

Li Jianan

et al. 2023

中国激光

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Significance The era of big data has presented new demands for mass data storage, and data storage security is critical to social stability and development. Holographic optical storage has not only become a powerful solution for mass data storage because of its high storage density, fast reading speed, and long storage life, but also provides an effective encryption means to ensure data storage security by utilizing the multidimensional modulated characteristics of light. Holographic encrypted optical storage has many advantages, including multiple adjustable parameters, a large key space, and a complex storage state in material. By modulating reference or information light, it can prevent unauthorized users from obtaining data and thus can provide a sufficient guarantee for safe data storage.Progress Since doublerandom phase encoding was first used in optical encryption in the early 1990s, holographic encrypted optical storage has developed rapidly. In general, encrypted optical storage can be divided into four categories. First, as shown in Fig. 2, holographic encrypted optical storage can be realized by amplitude modulation. Specific reference and information light encoded with different amplitudes are recorded in the same position of the material. Only the correct amplitude reference light can reconstruct the stored information when reading, whereas the wrong amplitude reference light will reproduce only a portion of the information of multiple data pages and interfere with each other, and thus the correct information will not be obtained. Second, as shown in Fig. 3, holographic encrypted optical storage is realized through phase modulation. Specifically, a random phase plate can be placed on the image plane and Fourier plane of the information light to realize phase encryption. Only by mastering the mask in the optical path can the information be accurately reproduced. Here, the same encryption process can be implemented for reference light. In addition, phase modulation can be extended to the Fresnel and fractional Fourier transform domains to increase the security of the encryption system. Third, as shown in Fig. 4, holographic encrypted optical storage can be achieved through polarization modulation. The polarization data page is used to represent the original data, and the polarization state modulation is performed on the polarization data page with the polarization mask to realize polarization encryption. The encrypted polarization information is then stored in the polarization response recording medium. Decryption requires using an inverse polarization mask to reconstruct the original data.1813009 -11 特邀综述第 50 卷第 18 期/2023 年 9 月/中国激光 Fourth, as shown in Fig. 5, encrypted optical storage can be realized through geometric attitude modulation of the optical path, specifically by changing the location, angle, and other parameters of the mask. To increase the security of encrypted storage systems, simultaneous encryption of multidimensional modulation parameters has become a trend and shown great potentia...

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Optical Encryption Scheme with Double Secret Keys Based on Computational Ghost Imaging

Cited by 3 publications

References 0 publications

Research on a big data information optical double encryption algorithm based on compressive ghost imaging

Research on a big data information optical double encryption algorithm based on compressive ghost imaging

Computational ghost imaging encryption based on fingerprint phase mask

多维调制的全息加密光存储

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