Opto-digital spectrum encryption by using Baker mapping and gyrator transform

Chen, Hang; Zhao, Jingyi; Liu, Zhengjun; Du, Xiaoping

doi:10.1016/j.optlaseng.2014.10.002

Cited by 13 publications

(8 citation statements)

References 36 publications

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“…Hyperspectral images (HIs) provide information on tens to hundreds of spectral bands, thus enabling the observation of more abundant information. Consequently, information security issues are fast becoming one of the most important issues in applications involving HIs; however, OIE for HIs [29][30][31][32][33][34] is still a nascent area. Chen et al [29] applied Baker mapping in the GT domain to encrypt both the spatial and spectral information of HIs, where Baker mapping was employed to scramble every single band of the HI.…”

Section: Introductionmentioning

confidence: 99%

Optical encryption of hyperspectral images using improved binary tree structure and phase-truncated discrete multiple-parameter fractional Fourier transform

Bai

Shan

et al. 2020

J. Opt.

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We present an optical encryption scheme for hyperspectral images using an improved binary tree structure (IBTS) and phase-truncated discrete multiple-parameter fractional Fourier transform (PTdmpFrFT). In the IBTS, the encryption modules based on the phase-truncated fractional Fourier transform represented the branch nodes, while the hyperspectral bands of the plain images were considered as leaf nodes. All pairs of bands were encoded into intermediate data using the IBTS, with subsequent encryption into asymmetric ciphertexts using the PTdmpFrFT. The proposed approach generated different pairs of bands with different secret keys, and encryption and decryption paths. Compared with state-of-the-art optical hyperspectral encryption methods, our approach not only achieved superior encryption security but also reduced the computation and storage requirements of the encrypted data. The original hyperspectral image information could be successfully decrypted only when using all the correct keys. Numerical simulations were performed to verify the performance of the proposed method.

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Section: Introductionmentioning

confidence: 99%

Optical encryption of hyperspectral images using improved binary tree structure and phase-truncated discrete multiple-parameter fractional Fourier transform

Bai

Shan

et al. 2020

J. Opt.

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“…Image encryption technology developed rapidly after 1995 when Refregier and Javidi proposed double random phase encryption technology [9]. Because this system is efficient and it has the features of fast response and high degree of parallelism, many scholars have been attracted to research it [10]- [17]. However, these optical systems require a very accurate spatial position, and it will reduce the fault tolerance of the entire system.…”

Section: Introductionmentioning

confidence: 99%

Image Encryption System Based on Joint Transformation Correlation and Ptychography

et al. 2020

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In this paper, a new image encryption system based on joint transformation correlation principle and ptycholographic iterative engine is proposed. When the encryption is performed, the original image can be divided into several parts by using the scanning movement of the probe. Each part is encrypted by the joint transformation correlation technology, and the ciphertexts are finally transmitted in the form of many encrypted images. The receiver uses the working principle of the joint transform correlator to decrypt and reconstructs the image by using the ptycholographic iterative engine, which can integrate multiple images with less information into one high-precision decrypted image. Computer simulations prove its possibility.

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“…AlphaEta is also cited in Lloyd’s work on quantum enigma machines [ 15 ]; Lloyd notes the open problem to construct a provably secure quantum enigma machine using linear optics and coherent states. As an alternative to AlphaEta, other optical cryptographic solutions were considered, including the use of double random phase encoding (DRPE) [ 16 , 17 , 18 ]. It deserves noting that not only has academia been focusing on quantum technologies, but several industries have started to commercialize quantum cryptographic tools [ 5 ], specifically for quantum key distribution and quantum random number generation.…”

Section: Introductionmentioning

confidence: 99%

Integrating Classical Preprocessing into an Optical Encryption Scheme

Steinwandt

Corona

2019

Entropy

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Traditionally, cryptographic protocols rely on mathematical assumptions and results to establish security guarantees. Quantum cryptography has demonstrated how physical properties of a communication channel can be leveraged in the design of cryptographic protocols, too. Our starting point is the AlphaEta protocol, which was designed to exploit properties of coherent states of light to transmit data securely over an optical channel. AlphaEta aims to draw security from the uncertainty of any measurement of the transmitted coherent states due to intrinsic quantum noise. We present a technique to combine AlphaEta with classical preprocessing, taking into account error-correction for the optical channel. This enables us to establish strong provable security guarantees. In addition, the type of hybrid encryption we suggest, enables trade-offs between invoking a(n inexpensive) classical communication channel and a (more complex to implement) optical channel, without jeopardizing security. Our design can easily incorporate fast state-of-the-art authenticated encryption, but in this case the security analysis requires heuristic reasoning.

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Opto-digital spectrum encryption by using Baker mapping and gyrator transform

Cited by 13 publications

References 36 publications

Optical encryption of hyperspectral images using improved binary tree structure and phase-truncated discrete multiple-parameter fractional Fourier transform

Optical encryption of hyperspectral images using improved binary tree structure and phase-truncated discrete multiple-parameter fractional Fourier transform

Image Encryption System Based on Joint Transformation Correlation and Ptychography

Integrating Classical Preprocessing into an Optical Encryption Scheme

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