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|Title:||Optical cryptography topology based on a three-dimensional particle-like distribution and diffractive imaging|
|Authors:||Chen, W. |
|Source:||Chen, W., Chen, X. (2011-05-09). Optical cryptography topology based on a three-dimensional particle-like distribution and diffractive imaging. Optics Express 19 (10) : 9008-9019. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.19.009008|
|Abstract:||In recent years, coherent diffractive imaging has been considered as a promising alternative for information retrieval instead of conventional interference methods. Coherent diffractive imaging using the X-ray light source has opened up a new research perspective for the measurement of non-crystalline and biological specimens, and can achieve unprecedentedly high resolutions. In this paper, we show how a three-dimensional (3D) particle-like distribution and coherent diffractive imaging can be applied for a study of optical cryptography. An optical multiple-random-phase-mask encoding approach is used, and the plaintext is considered as a series of particles distributed in a 3D space. A topology concept is also introduced into the proposed optical cryptosystem. During image decryption, a retrieval algorithm is developed to extract the plaintext from the ciphertexts. In addition, security and advantages of the proposed optical cryptography topology are also analyzed. © 2011 Optical Society of America.|
|Source Title:||Optics Express|
|Appears in Collections:||Staff Publications|
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