Angle Multiplexing Optical Image Encryption in the Fresnel Transform Domain Using Phase-Only Computer-Generated Hologram

Chang, Hsuan-Ting; Wang, Yao‐Ting; Chen, Chien‐Yu

doi:10.3390/photonics7010001

Cited by 10 publications

(4 citation statements)

References 39 publications

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“…Interference- [80,81], ghost imaging- [82,83] and holography [84][85][86]-based encryption algorithms represent innovative approaches to securing digital information, with applications ranging from communication to image protection [87][88][89][90][91][92][93]. Interference-based encryption harnesses the principles of wave interference, exploiting the complexity introduced by superimposing multiple light waves to encode information in a manner that id difficult to decipher without the correct key [94][95][96][97][98][99][100][101][102][103].…”

Section: Other Optical Encryption Algorithmsmentioning

confidence: 99%

Advances in Optical Visual Information Security: A Comprehensive Review

Sachin,

Kumar,

Sakshi

et al. 2024

Photonics

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In the modern era, the secure transmission and storage of information are among the utmost priorities. Optical security protocols have demonstrated significant advantages over digital counterparts, i.e., a high speed, a complex degree of freedom, physical parameters as keys (i.e., phase, wavelength, polarization, quantum properties of photons, multiplexing, etc.) and multi-dimension processing capabilities. This paper provides a comprehensive overview of optical cryptosystems developed over the years. We have also analyzed the trend in the growth of optical image encryption methods since their inception in 1995 based on the data collected from various literature libraries such as Google Scholar, IEEE Library and Science Direct Database. The security algorithms developed in the literature are focused on two major aspects, i.e., symmetric and asymmetric cryptosystems. A summary of state-of-the-art works is described based on these two aspects. Current challenges and future perspectives of the field are also discussed.

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Section: Other Optical Encryption Algorithmsmentioning

confidence: 99%

Advances in Optical Visual Information Security: A Comprehensive Review

Sachin,

Kumar,

Sakshi

et al. 2024

Photonics

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show abstract

“…However, they cannot obtain phase distribution, which is more important in the imaging of some transparent samples. To address this problem, the phase retrieval algorithm was proposed [1][2][3]. This is a type of technique to reconstruct the wavefront without interferometric measurement.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Multi-Distance Phase Retrieval via Unequal Interval Measurements

Yuan

Cao

et al. 2021

Photonics

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In the conventional methods of multi-distance phase retrieval, the diffraction intensity patterns are recorded at equal intervals, which can induce slow convergence or stagnation in the subsequent reconstruction process. To solve this problem, a measurement method with unequal intervals is proposed in this paper. The interval spacings between adjacent measurement planes are decreased gradually. A large gap accelerates retrieval progress, and a short span helps to recover detailed information. The proposed approach makes full use of the available measured dataset and simultaneously generates variations in diversity amplitude, which is a crucial issue for the techniques of multi-image phase retrieval. Both computational simulations and experiments are performed. The results demonstrate that this method can improve the convergence speed by 2 to 3 times and enhance the quality of reconstruction results in comparison to that of the conventional methods.

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“…The optical encryption technology based on holographic has emerge as a new technology that has many has many advantages such as high speed, high capacity and is multi-dimensional as well [1][2][3]. For these reasons, the optical holographic encryption technology is gradually received great attention and considered as an enabling technology [4,5].…”

Section: Introductionmentioning

confidence: 99%

A Virtual Optical Holographic Encryption System Using Expanded Diffie-Hellman Algorithm

et al. 2021

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This paper presents a new method for encrypting information over a Virtual Optical Holographic Encryption (VOHE) system which employs a virtual optical system based on digital holography and Fourier lens. The VOHE system provides parameters such as propagation wavelength (λ) and focal length (f) of the Fourier lens which are keys that are used for encryption and decryption processes. The encrypted holographic information is based on an expanded Diffie-Hellman (EDH) algorithm. The method of expansion is presented based on a two-dimension complex function EDH-C. Furthermore, an expanded Pollard's Rho method was applied to evaluate the security of the proposed EDH-C algorithm. To determine the accuracy of the information retrieved by a receiver site, the mean absolute error (MAE) was calculated between the original code and retrieved code. Finally, the randomness of the transmitted message for both methods was evaluated using NIST tests and the results show that the message that was encrypted by the proposed EDH-C algorithm had higher security than DH in view of the unpredictability and complexity of the transmitted message over an insecure channel.

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Angle Multiplexing Optical Image Encryption in the Fresnel Transform Domain Using Phase-Only Computer-Generated Hologram

Cited by 10 publications

References 39 publications

Advances in Optical Visual Information Security: A Comprehensive Review

Advances in Optical Visual Information Security: A Comprehensive Review

Enhancing Multi-Distance Phase Retrieval via Unequal Interval Measurements

A Virtual Optical Holographic Encryption System Using Expanded Diffie-Hellman Algorithm

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