Optical encryption of multiple three-dimensional objects based on multiple interferences and single-pixel digital holography

Wang, Ying; Liu, Qi; Wang, Jun; Wang, Qiong‐Hua

doi:10.1088/1674-1056/27/3/034202

Cited by 12 publications

(9 citation statements)

References 27 publications

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“…In recent years, CS-based optical encryption methods have been increasing the demand for many optical information processing applications [41][42][43][44][45][46][47][48][49][50][51][52][53].…”

Section: Introductionmentioning

confidence: 99%

“…e simulation results have shown that the CS scheme improved the security and reconstruction quality of the intensity image. Wang et al [49] have presented single-pixel compressive holographic encryption by modifying the Mach-Zehnder interferometer setup for multiple-3D-object imaging based on multiple interferences.…”

Section: Introductionmentioning

confidence: 99%

“…It has been numerically presented that the one RPM key at different recording distances minimized the key storage requirement of data transmission and also enhanced the robustness of the encryption system. e encryption systems [44][45][46][47][48][49][50] were proposed based on inline schemes such as four-step, three-step, or twostep PSDH. Moreover, the phase reconstruction of the encrypted object field is not presented in the single-pixel compressive holography.…”

Section: Introductionmentioning

confidence: 99%

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Single-Pixel Compressive Digital Holographic Encryption System Based on Circular Harmonic Key and Parallel Phase Shifting Digital Holography

Reddy

Nelleri

2022

International Journal of Optics

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An encryption system that combines compressive sensing (CS) and two-step parallel phase shifting digital holography (PPSDH) using double random phase encoding (DRPE) is presented in this paper. The two-step PPSDH is a linear inline holographic scheme and is much suitable for encrypting the 2D/3D information in a single exposure. The distribution of random phase mask (RPM) in the DRPE is implemented using circular harmonic key which increases the security of the encryption process. In this system, the keys used to encrypt are spatial positions of the planes, wavelength, and rotation of the circular harmonics in RPMs, and CS acts as an additional key that makes the system more secure than the conventional optical encryption methods. At the transmission end, two-step PPSDH is applied to encrypt the object information in single hologram. The digital mirror device (DMD) is placed between the object and a single-pixel detector for acquiring fewer hologram measurements. At the receiver end, the single digital hologram is numerically recovered by using a CS optimization problem. The original complex object field is decrypted from the CS recovered holograms by the inversion of two-step PPSDH process with the help of the correct keys. The numerical simulations are presented for complex 2D and 3D objects to test the feasibility of the proposed encryption and decryption system. The proposed method carried out intensity and phase reconstruction of the original object field using single-pixel compressive imaging. The computer simulation results demonstrated that the encrypted information is highly secured with the rotation of the circular harmonic key. The sensitivity of the decrypted intensity and phase images is also studied with variations of the encrypted keys. The obtained results show that the proposed encryption scheme is feasible and has better security performance and robustness.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Single-Pixel Compressive Digital Holographic Encryption System Based on Circular Harmonic Key and Parallel Phase Shifting Digital Holography

Reddy

Nelleri

2022

International Journal of Optics

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“…[6] Since the DRPE-based optical encryption has high flexibility and expansion capability, consequently, many other optical encryption methods have also been developed, which proves to be feasible and effective. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] In recent years, the vulnerability analysis of optical encryption systems has attracted wide interest from researchers. The DRPE-based optical encryption schemes have been verified to be vulnerable to different kinds of attacks [26][27][28][29] due to its inherent properties of linearity and symmetry.…”

Section: Introductionmentioning

confidence: 99%

Deep-learning-based cryptanalysis of two types of nonlinear optical cryptosystems

Wang¹,

Wei²

2022

Chinese Phys. B

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The two types of nonlinear optical cryptosystems (NOCs) that are respectively based on amplitude-phase retrieval algorithm (APRA) and phase retrieval algorithm (PRA) have attracted a lot of attention due to their unique mechanism of encryption process and remarkable ability to resist common attacks. In this paper, for the first time, to the best of our knowledge, the security of the two types NOCs is evaluated by using a deep-learning (DL) method, wherein an end-to-end densely connected convolutional network (DenseNet) model for cryptanalysis is developed. The proposed DL-based method is able to retrieve unknown plaintexts from the given ciphertexts by using the trained DenseNet model without a prior knowledge of any public or private keys. The results of numerical experiments with the DenseNet model clearly demonstrate the validity and good performance of the proposed the DL-based attack on NOCs.

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“…Holography can simultaneously record the amplitudes and phases of object waves, so this technique is widely used for three-dimensional (3D) display, [1,2] topography measurement, [3,4] information encryption, [5][6][7] and biological cell microscopy. [8][9][10] Initially, the original holography [11] proposed by Gabor has many inherent shortcomings, and the DC and conjugate terms seriously reduce the image quality due to the coaxial optical system.…”

Section: Introductionmentioning

confidence: 99%

Single-shot phase-shifting digital holography with a photon-sieve-filtering telescope*

Li¹,

Li²,

Zhang³

et al. 2019

Chinese Phys. B

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A method of single-shot phase-shifting digital holography with a photon-sieve-filtering telescope is proposed. Three copy images with different phases are first generated by use of a monofocal photon-sieve filter in Kepler telescope, and then interfere with the reference plane wave by a beam combiner. The hologram is captured by a charge-coupled device (CCD) in one single exposure. The complex-valued amplitude of the test object can be reconstructed by three-step phase-shifting interferometry through three frames of extracted sub-interferograms from the single-exposure hologram. The principle and simulation experiments are carried out and verified the validity of our proposed method. This method can be applied for snapshot imaging and three-dimensional object construction.

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Optical encryption of multiple three-dimensional objects based on multiple interferences and single-pixel digital holography

Cited by 12 publications

References 27 publications

Single-Pixel Compressive Digital Holographic Encryption System Based on Circular Harmonic Key and Parallel Phase Shifting Digital Holography

Single-Pixel Compressive Digital Holographic Encryption System Based on Circular Harmonic Key and Parallel Phase Shifting Digital Holography

Deep-learning-based cryptanalysis of two types of nonlinear optical cryptosystems

Single-shot phase-shifting digital holography with a photon-sieve-filtering telescope*

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