Open AccessOptical cryptography topology based on a three-dimensional particle-like distribution and diffractive imaging
Author(s) -
Wen Chen,
Xudong Chen
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.009008
Subject(s) - phase retrieval , cryptosystem , plaintext , optics , computer science , cryptography , topology (electrical circuits) , visual cryptography , coherent diffraction imaging , interference (communication) , ptychography , encryption , physics , algorithm , diffraction , fourier transform , mathematics , telecommunications , channel (broadcasting) , quantum mechanics , combinatorics , operating system , secret sharing
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.