Journal ArticleDOI
Optical image encryption based on interference.
Yan Zhang,Bo Wang +1 more
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TLDR
A novel architecture for optical image encryption based on interference is proposed that does not need iterative encoding and the parameters of the configuration can also serve as additional keys for encryption.Abstract:
We proposed a novel architecture for optical image encryption based on interference. The encryption algorithm for this new method is quite simple and does not need iterative encoding. The parameters of the configuration can also serve as additional keys for encryption. Numerical simulation results demonstrate the flexibility of this new proposed method.read more
Citations
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Asymmetric color cryptosystem using polarization selective diffractive optical element and structured phase mask
TL;DR: A single channel asymmetric color image encryption scheme is proposed that uses an amplitude- and phase- truncation approach with interference of polarized wavefronts to alleviate the alignment problem of interference and does not need iterative encoding and offers multiple levels of security.
Journal ArticleDOI
Silhouette-free interference-based multiple-image encryption using cascaded fractional Fourier transforms
TL;DR: An optical approach of silhouette-free multiple-image encryption based on interference is proposed, with two layers to enhance the level of security, by considering the fractional order as an additional key.
Journal ArticleDOI
Vulnerability to ciphertext-only attack of optical encryption scheme based on double random phase encoding.
TL;DR: It is demonstrated in this paper that the traditional double random phase encoding (DRPE) technique is vulnerable to ciphertext-only attack (COA), and the proposed scheme mainly relies on a hybrid iterative phase retrieval (HIPR) algorithm, which combines various phase retrieval algorithms.
Journal ArticleDOI
Image encryption using polarized light encoding and amplitude and phase truncation in the Fresnel domain
TL;DR: An image encryption scheme based on polarized light encoding and a phase-truncation approach in the Fresnel transform domain and offers several advantages, including a lens-free setup, flexibility in the encryption key design, use of asymmetric keys, and immunity against special attack.
Journal ArticleDOI
Multiple-image encryption via lifting wavelet transform and XOR operation based on compressive ghost imaging scheme
Xianye Li,Xiangfeng Meng,Xiulun Yang,Yurong Wang,Yongkai Yin,Xiang Peng,Wenqi He,Guoyan Dong,Hongyi Chen +8 more
TL;DR: Theoretical analysis and numerical simulations validate the feasibility of the proposed multiple-image encryption method via lifting wavelet transform (LWT) and XOR operation, based on a row scanning compressive ghost imaging scheme.
References
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Journal ArticleDOI
Optical image encryption based on input plane and Fourier plane random encoding.
Philippe Réfrégier,Bahram Javidi +1 more
TL;DR: A new optical encoding method of images for security applications is proposed and it is shown that the encoding converts the input signal to stationary white noise and that the reconstruction method is robust.
Journal ArticleDOI
Known-plaintext attack on optical encryption based on double random phase keys
TL;DR: A new approach to known-plaintext attack on an optical encryption scheme based on double random phase keys that can be accessed with the help of the phase retrieval technique is demonstrated.
Journal ArticleDOI
Vulnerability to chosen-cyphertext attacks of optical encryption schemes based on double random phase keys.
TL;DR: It is shown how optical encryption methods based on double random phase keys are vulnerable to an organized attack of the chosen-ciphertext type and cast doubts on the present security of these techniques.
Journal ArticleDOI
Encrypted optical memory system using three-dimensional keys in the Fresnel domain.
Osamu Matoba,Bahram Javidi +1 more
TL;DR: Encryption and decryption of optical memory in a LiNbO(3) :Fe photorefractive crystal by use of angular multiplexing is demonstrated.
Journal ArticleDOI
Double image encryption based on iterative fractional Fourier transform
Zhengjun Liu,Shutian Liu +1 more
TL;DR: An image encryption algorithm to simultaneously encrypt two images into a single one as the amplitudes of fractional Fourier transform with different orders is presented, independent of additional random phases as the encryption/ decryption keys.
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Optical image encryption based on input plane and Fourier plane random encoding.
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