Multiple-image encryption based on optical scanning holography using orthogonal compressive sensing and random phase mask

Zhang, Luozhi; Zhou, Xin; Wang, Di; Li, Nannan; Bai, Xing; Wang, Qiong‐Hua

doi:10.1117/1.oe.59.10.102411

Cited by 10 publications

(7 citation statements)

References 24 publications

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“…The visual analysis is the most important assessment tool utilized to appraise the security strength and efficiency of the suggested cryptosystem. The examined color medical images and their encrypted versions with the suggested optical asymmetric cryptosystem and the conventional optical symmetric DRPE and OSH cryptosystems [7,9,10,22] are displayed in Fig. 2.…”

Section: Visual Resultsmentioning

confidence: 99%

Secure and Robust Optical Multi-Stage Medical Image Cryptosystem

El‐Shafai¹,

Aly²,

Algarni³

et al. 2022

Computers, Materials &Amp; Continua

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Due to the rapid growth of telemedicine and healthcare services, color medical image security applications have been expanded precipitously. In this paper, an asymmetric PTFrFT (Phase Truncated Fractional Fourier Transform)-based color medical image cryptosystem is suggested. Two different phases in the fractional Fourier and output planes are provided as deciphering keys. Accordingly, the ciphering keys will not be employed for the deciphering procedure. Thus, the introduced PTFrFT algorithm comprises asymmetric ciphering and deciphering processes in contrast to the traditional optical symmetric OSH (Optical Scanning Holography) and DRPE (Double Random Phase Encoding) algorithms. One of the principal impacts of the introduced asymmetric cryptosystem is that it eliminates the onedimensionality aspects of the related symmetric cryptosystems due to its remarkable feature of phase nonlinear truncation components. More comparisons on various color medical images are examined and analyzed to substantiate the cryptosystem efficacy. The achieved experimental outcomes ensure that the introduced cryptosystem is robust and secure. It has terrific cryptography performance compared to conventional cryptography algorithms, even in the presence of noise and severe channel attacks.

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Section: Visual Resultsmentioning

confidence: 99%

Secure and Robust Optical Multi-Stage Medical Image Cryptosystem

El‐Shafai¹,

Aly²,

Algarni³

et al. 2022

Computers, Materials &Amp; Continua

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“…The photodetector receives all light and converts it to an electrical holography output, which can be displayed on the monitor or stored on the computer. The OSH transfers the outcome optical information into an electrical signal [23]. In this paper, speech signal spectrogram is encrypted using the OSH algorithm.…”

Section: Optical Scanning Holography Algorithmmentioning

confidence: 99%

“…The object T o ði; jÞ initially may be complex. The object intensity, jT o ði; jÞj 2 is processed by a real and non-negative quantity, |Φ b (i, j)| 2 [23].…”

Section: Optical Scanning Holography Algorithmmentioning

confidence: 99%

Cancelable Speaker Identification System Based on Optical-Like Encryption Algorithms

El‐Gazar¹,

El‐Shafai²,

El‐Banby³

et al. 2022

Computer Systems Science and Engineering

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Biometric authentication is a rapidly growing trend that is gaining increasing attention in the last decades. It achieves safe access to systems using biometrics instead of the traditional passwords. The utilization of a biometric in its original format makes it usable only once. Therefore, a cancelable biometric template should be used, so that it can be replaced when it is attacked. Cancelable biometrics aims to enhance the security and privacy of biometric authentication. Digital encryption is an efficient technique to be used in order to generate cancelable biometric templates. In this paper, a highly-secure encryption algorithm is proposed to ensure secure biometric data in verification systems. The considered biometric in this paper is the speech signal. The speech signal is transformed into its spectrogram. Then, the spectrogram is encrypted using two cascaded optical encryption algorithms. The first algorithm is the Optical Scanning Holography (OSH) for its efficiency as an encryption tool. The OSH encrypted spectrogram is encrypted using Double Random Phase Encoding (DRPE) by implementing two Random Phase Masks (RPMs). After the two cascaded optical encryption algorithms, the cancelable template is obtained. The verification is implemented through correlation estimation between enrolled and test templates in their encrypted format. If the correlation value is larger than a threshold value, the user is authorized. The threshold value can be determined from the genuine and imposter correlation distribution curves as the midpoint between the two curves. The implementation of optical encryption is adopted using its software rather than the optical setup. The efficiency of the proposed cancelable biometric algorithm is illustrated by the simulation results. It can improve the biometric data security without deteriorating the recognition accuracy. Simulation results give close-to-zero

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“…These optical color image and multiple-image encryption systems use different input illumination wavelengths and several key codes or RPMs that can be utilized as new security keys to improve the security level of the encryption system. Optical encryption methods recently included the ability to cipher multiple images [ 41 , 42 , 43 , 44 , 45 , 46 , 47 ]. In general, this approach achieves a higher level of security because two or more pieces of information are encoded in the encryption procedure, and their decryption allows for the validation of more than one signal, unlike the first systems that dealt with a unique primary image.…”

Section: Introductionmentioning

confidence: 99%

“…The multiple-image encryption system in [ 46 ] was based on the optical interference by wavelength multiplexing in the Fresnel domain in order to generate two encrypted images. A nonlinear multiple-image encryption method was described in [ 47 ] by using optical scanning holography with a random-phase mask (RPM) and orthogonal compressive sensing.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Encryption for Multiple Images Based on a Joint Transform Correlator and the Gyrator Transform

Perez

Vilardy

Pérez‐Cabré

et al. 2023

Sensors

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A novel nonlinear encryption–decryption system based on a joint transform correlator (JTC) and the Gyrator transform (GT) for the simultaneous encryption and decryption of multiple images in grayscale is proposed. This security system features a high level of security for the single real-valued encrypted image and a high image quality for the multiple decrypted images. The multispectral or color images are considered as a special case, taking each color component as a grayscale image. All multiple grayscale images (original images) to encrypt are encoded in phase and placed in the input plane of the JTC at the same time without overlapping. We introduce two random-phase masks (RPMs) keys for each image to encrypt at the input plane of the JTC-based encryption system. The total number of the RPM keys is given by the double of the total number of the grayscale images to be encrypted. The use of several RPMs as keys improves the security of the encrypted image. The joint Gyrator power distribution (JGPD) is the intensity of the GT of the input plane of the JTC. We obtain only a single real-valued encrypted image with a high level of security for all the multiple grayscale images to encrypt by introducing two new suitable nonlinear modifications on the JGPD. The security keys are given by the RPMs and the rotation angle of the GT. The decryption system is implemented by two successive GTs applied to the encrypted image and the security keys given by the RPMs and considering the rotation angle of the GT. We can simultaneously retrieve the various information of the original images at the output plane of the decryption system when all the security keys are correct. Another result due to the appropriate definition of the two nonlinear operations applied on the JGPD is the retrieval of the multiple decrypted images with a high image quality. The numerical simulations are computed with the purpose of demonstrating the validity and performance of the novel encryption–decryption system.

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Multiple-image encryption based on optical scanning holography using orthogonal compressive sensing and random phase mask

Cited by 10 publications

References 24 publications

Secure and Robust Optical Multi-Stage Medical Image Cryptosystem

Secure and Robust Optical Multi-Stage Medical Image Cryptosystem

Cancelable Speaker Identification System Based on Optical-Like Encryption Algorithms

Nonlinear Encryption for Multiple Images Based on a Joint Transform Correlator and the Gyrator Transform

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