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Pure optical dynamical color encryption
Author(s) -
Fabián Mosso,
Myrian Tebaldi,
John Fredy Barrera,
Néstor Bolognini,
Roberto Torroba
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.013779
Subject(s) - multiplexing , encryption , decoding methods , decodes , encoding (memory) , computer science , channel (broadcasting) , chromatic scale , encode , optics , frame (networking) , multiplex , physics , algorithm , telecommunications , artificial intelligence , computer network , biochemistry , chemistry , bioinformatics , biology , gene
We introduce a way to encrypt-decrypt a color dynamical phenomenon using a pure optical alternative. We split the three basic chromatic channels composing the input, and then each channel is processed through a 4f encoding method and a theta modulation applied to the each encrypted frame in every channel. All frames for a single channel are multiplexed. The same phase mask is used to encode all the information. Unlike the usual procedure we do not multiplex the three chromatic channels into a single encoding media, because we want to decrypt the information in real time. Then, we send to the decoding station the phase mask and the three packages each one containing the multiplexing of a single channel. The end user synchronizes and decodes the information contained in the separate channels. Finally, the decoding information is conveyed together to bring the decoded dynamical color phenomenon in real-time. We present material that supports our concepts.

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