Optical image encryption based on interference of polarized light

Zhu, Nan; Wang, Yongtian; Liu, Juan; Xie, Jinghui; Zhang, Hao

doi:10.1364/oe.17.013418

Cited by 79 publications

(31 citation statements)

References 10 publications

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“…A popular optical encryption technique is based on double-random-phase encoding in a well-known 4-f coherent system (6), and many other optical encryption techniques, such as the use of fractional Fourier transform (7,8), Fresnel transform (9,10), gyrator transform (11,12), polarization (13) and diffractive imaging (14), have been investigated. Owing to the need to extract the amplitude and phase information, digital holography is often used to implement some of these ideas in a coherent system (15)(16)(17)(18)(19).…”

Section: Introductionmentioning

confidence: 99%

Optical image encryption using optical scanning and fingerprint keys

Yan

Poon

et al. 2016

Journal of Modern Optics

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Fingerprint authentication is a preferable biometric technique for securing images. Optical scanning cryptography (OSC) is a hybrid optical/digital method to encrypt and decrypt an image using optical scanning technique. In this paper, we propose a new strategy to combine OSC with fingerprints to enhance security. We have verified the effectiveness of the proposed idea in simulations. Subsequently practical implementation of the idea has also been performed with optical heterodyning to confirm the results from simulations. We have also discussed the added security and flexibility of implementation when optical heterodyning is employed in cryptography. KEYWORDSimage and image processing; optical security and encryption; digital holography; fingerprint keys; optical scanning; biometric security ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

Optical image encryption using optical scanning and fingerprint keys

Yan

Poon

et al. 2016

Journal of Modern Optics

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“…The main motivation for using optics for information security is that optical waveforms possess many complex degrees of freedom such as amplitude, phase, polarization, large bandwidth, nonlinear transformations, quantum properties of photons, and multiplexing that can be combined in many ways to make information encryption more secure and more difficult to attack. Several methods for optical image encryption have been proposed such as those based on digital holography [11,12], virtual optics [13], diffractive imaging [14], ghost imaging [15], ptychography [16], interferometry [17], polarization [18,19], photon-counting [20], etc. In 1995, Refrégier and Javidi [21], proposed the 'double random phase encoding' (DRPE) scheme.…”

Section: Introductionmentioning

confidence: 99%

Optical triple random-phase encryption

et al. 2017

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Abstract. We propose an optical security technique for image encryption using triple random phase encoding (TRPE). In the encryption process, the original image is first double random phase encrypted. The obtained function is then multiplied by a third random phase key in the output plane, to enhance the security level of the encryption process. This method reduces the vulnerability to certain attacks observed when using the conventional double random phase encoding (DRPE). To provide the security enhancement of the proposed TRPE method, three attack cases are discussed: Chosen-plaintext attacks (CPA), Known-plaintext attacks (KPA) and chosen-ciphertext attacks (CCA). Numerical results are presented to demonstrate feasibility and effectiveness of the proposed method. Compared with conventional DRPE, the proposed encryption method can provide an effective alternative and has enhanced security features against the above-mentioned attacks.

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“…In recent years, due to the high-speed processing and parallel ability, the optical information security has drawn more and more attention with the rapid development of information technology, since the double random phase encoding (DRPE) scheme was invented by Refregier and Javidi [1]; some other optical information processing techniques or transforms, such as digital holography [2,3], fractional Fourier transform [4][5][6], phase-shifting interferometry [7,8], phase retrieval [9][10][11][12], Fresnel transform [13,14], gyrator transform [15], fractional Mellin transform [16], joint transform correlator [17], two beam's interference [18,19], diffractive imaging [20], polarization encoding [21], aperture movement [22], phase reservation and compression [23], ghost imaging [24], have been combined with DRPE to build more versatile security systems.…”

Section: Introductionmentioning

confidence: 99%

A kind of multilevel authentication system for multiple-image by modulated real part synthesis and iterative phase multiplexing

Pan

Meng

Wang

et al. 2015

Journal of Modern Optics

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2015): A kind of multilevel authentication system for multiple-image by modulated real part synthesis and iterative phase multiplexing, Journal of Modern Optics, A kind of multilevel authentication system for multiple-image based on modulated real part synthesis and iterative phase multiplexing in the Fresnel domain is proposed. In the design process of the low-level authentication system, a series of normalized real part information are iteratively generated by phase retrieval algorithm in the Fresnel domain, and the final private keys for different individual low-level certification images can be fabricated by binary amplitude modulation, superposition, synthesis, and sampling; while in the design process of the high-level authentication system, the final private keys for different individual high-level certification images can be generated by iterative phase information encoding and multiplexing. During the high-level authentication, the meaningful certification image can be reconstructed by the inverse Fresnel transform with the corresponding correct private keys, meanwhile, the correlation coefficient is utilized as judgment criterion; while in the low-level authentication, with the help of correct keys, the noise-like image with meaningless information can be recovered, but a remarkable peak output in the nonlinear correlation coefficient can be generated, which is adopted as the criterion to judge whether the low-level authentication is successful or not. Theoretical analysis and numerical simulations both verify the feasibility of the proposed method.

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Optical image encryption based on interference of polarized light

Cited by 79 publications

References 10 publications

Optical image encryption using optical scanning and fingerprint keys

Optical image encryption using optical scanning and fingerprint keys

Optical triple random-phase encryption

A kind of multilevel authentication system for multiple-image by modulated real part synthesis and iterative phase multiplexing

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