Information encryption with virtual-optics imaging system

Peng, Xiang; Cui, Zhiyong; Tan, Tieniu

doi:10.1016/s0030-4018(02)02003-5

Cited by 73 publications

(23 citation statements)

References 10 publications

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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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Section: Introductionmentioning

confidence: 99%

Optical triple random-phase encryption

et al. 2017

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“…The most famous and important work in this area must be the image encryption scheme based on Double Random Phase Encoding (DRPE), which is reported by Refregier and Javidi in 1995 [1]. Up to now, plenty of relevant works have been studied and developed, and they mainly concentrate on the aspects of image encryption/hiding and optical cryptanalysis [2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Identity Authentication Based on Two-Beam Interference

He¹,

Peng²

2014

JCC

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A two-factor identity authentication method on the basis of two-beam interference was presented. While verifying a user's identity, a specific "phase key" as well as a corresponding "phase lock" are both mandatory required for a successful authentication. Note that this scheme can not only check the legality of the users, but also verify their identity levels so as to grant them hierarchical access permissions to various resources of the protected systems or organizations. The authentication process is straightforward and could be implemented by a hybrid optic-electrical system. However, the system designing procedure involves an iterative Modified Phase Retrieval Algorithm (MPRA) and can only be achieved by digital means. Theoretical analysis and simulations both validate the effectiveness of our method.

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“…In many cases there is conceptually no need to switch from simulation to a real experiment. This is a so-called concept of virtual optics (VO) [1,2]. The VO means the implementation of data processing or encrypting algorithms based on certain optical setup and involving corresponding data transformations.…”

Section: Introductionmentioning

confidence: 99%

“…The VO means the implementation of data processing or encrypting algorithms based on certain optical setup and involving corresponding data transformations. Almost always the kernel of those transformations is either Fourier transform (FT) [1] or fractional Fourier transform (FRFT) [3,4]. However, abstracting from optical fundamentals of VO, any other transform may be used as a kernel as soon as it has certain properties similar to FT.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Analysis of Associative Properties of Fourier versus Walsh Digital Holograms

Derzhypolskyy

Gnatovskyy

2007

Acta Phys. Pol. A

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A digital implementation of the Fourier holography scheme with identical reference and signal beams is considered. Investigations of the properties of this scheme were reported on in a number of papers. At the same time a concept of virtual optics is widely used in data encryption and data processing, whereas digital implementation of the Fourier holography scheme may be provided using not only discrete Fourier transform. Another discrete digital transform may be used as soon as it has several properties similar to the Fourier transform. The Walsh transform is the subject to consider in this work. A comparison of digital Fourier and Walsh versions of the named holographic scheme is conducted by means of their associative properties. Considered is the retrieving of information stored in the hologram using parts of different amounts of the original data. Comparison is provided with the two types of data stored: a raster image representing visual information and an image representing a set of data bits. Comparable parameters are the mean image contrast for visual data image and the bit detection accuracy for a set of data bits.

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Information encryption with virtual-optics imaging system

Cited by 73 publications

References 10 publications

Optical triple random-phase encryption

Optical triple random-phase encryption

Identity Authentication Based on Two-Beam Interference

A Comparative Analysis of Associative Properties of Fourier versus Walsh Digital Holograms

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