Double phase-image encryption using gyrator transforms, and structured phase mask in the frequency plane

Singh, Hukum; Yadav, Ashwani Kumar; Vashisth, Sunanda; Singh, Kehar

doi:10.1016/j.optlaseng.2014.10.011

Cited by 123 publications

(28 citation statements)

References 33 publications

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“…Here, Lorenz chaotic mapping was used and it was shown in formula (1). Here, we put the original image information as 1 x into the formula (1), and generate other three variables 2 x , 3 x , 4 x by using Lorenz chaotic mapping.…”

Section: Chaotic Scrambling Processmentioning

confidence: 99%

“…In order to satisfy the requirement of the matrix operations on the finite field, A and B will map into image matrix, shown as in formula (3).…”

Section: Chaotic Scrambling Processmentioning

confidence: 99%

“…Image encryption can make the attacker and the translator not obtain the original image information. At the beginning of the image encryption technology development, stream cipher and matrix scrambling were used more [3][4]. But these encryption methods are so simple that decryption process is vulnerable to decode by attacker.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Research on Image Encryption Based on Lorenz Chaotic Mapping in Finite Field

Liu¹,

Liu²

2016

IJHIT

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Section: Chaotic Scrambling Processmentioning

confidence: 99%

“…In order to satisfy the requirement of the matrix operations on the finite field, A and B will map into image matrix, shown as in formula (3).…”

Section: Chaotic Scrambling Processmentioning

confidence: 99%

See 1 more Smart Citation

Research on Image Encryption Based on Lorenz Chaotic Mapping in Finite Field

Liu¹,

Liu²

2016

IJHIT

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“…The DRPE technique in Fourier transform (FT) domain was first proposed by Refregier and Javidi to encrypt an image into a noise-like pattern [1]. Subsequently, the DRPE technique has been successfully extended to some other transform domains, such as the fractional 1 Fourier transform (FrFT) domain [2], the Fresnel transform (FrT) domain [3], the Gyrator transform (GT) domain [4], and so on.…”

Section: Introductionmentioning

confidence: 99%

A Novel Image Encryption Scheme Based on Single Random Phase Encoding and Chaos

Su¹,

Tang²,

Lei³

et al. 2018

dtcse

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In this paper, a novel image encryption scheme based on single random phase encoding and chaos is proposed. In the proposed scheme, the random phase mask is generated by Henon map, and the chaos parameters of Henon map can replace the whole phase mask to serve as the secret keys. Thus the management and transmission of secret keys are more convenient in the proposed scheme. Additionally, the proposed scheme contains only one random phase mask, which makes it more efficient and concise to implement. The performance of the proposed scheme has been demonstrated by extensive experiments.

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“…Vashisth et al 32 presented an image encryption by employing the phase retrieval algorithm in the fractional Mellin transform domain, in which two structured phase masks are constructed based on TZP and RHM, respectively. Singh et al 33 proposed the double phase-image encryption using GTs, in which the structured phase mask is derived from DVFL in the frequency plane. Some recent studies have also introduced structured phase mask based on devil's vortex Fresnel lens (DVFL) 34,35,36,37,38 .…”

Section: Introductionmentioning

confidence: 99%

Optical image encryption technique based on deterministic phase masks

et al. 2016

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Abstract. The double random phase encoding (DRPE) scheme, which is based on a 4f optical correlator system, is considered as a reference for the optical encryption field. In this work, we propose a modification of the classical DRPE scheme based on the use of a novel class of structured phase masks, the deterministic phase masks. In particular, we propose to conduct the encryption process by using two deterministic phase masks, which are built from linear combinations of several sub-keys. For the decryption step, the input image is retrieved by using the complex conjugate of the deterministic phase masks, which were set in the encryption process. This new concept of structured masks gives rise to encryption-decryption keys which are smaller and more compact than those required in the classical DRPE. In addition, we show that our method significantly improves the tolerance of the DRPE method to shifts of the decrypting phase mask -when no shift is applied, it provides similar performance to the DRPE scheme in terms of encryption-decryption results-. This enhanced tolerance to the shift, which is proven by providing numerical simulation results for gray-scale and binary images, may relax the rigidity of an encryptiondecryption experimental implementation set-up. To evaluate the effectiveness of the described method, the meansquare-error (MSE) and the peak signal-to-noise ratio (PSNR) between the input images and the recovered images are calculated. Different studies based on simulated data are also provided to highlight the suitability and robustness of the method when applied to image encryption-decryption processes.

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Double phase-image encryption using gyrator transforms, and structured phase mask in the frequency plane

Cited by 123 publications

References 33 publications

Research on Image Encryption Based on Lorenz Chaotic Mapping in Finite Field

Research on Image Encryption Based on Lorenz Chaotic Mapping in Finite Field

A Novel Image Encryption Scheme Based on Single Random Phase Encoding and Chaos

Optical image encryption technique based on deterministic phase masks

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