NDLI: Optical encryption system employing orthogonal code and multiple reference-based joint transform correlation

Content Provider	IEEE Xplore Digital Library
Author	Islam, M.N. Karim, M.A.
Copyright Year	2010
Description	Author affiliation: Old Dominion University, Norfolk, Virginia, USA (Karim, M.A.) \|\| State University of New York, Farmingdale, USA (Islam, M.N.)
Abstract	The paper proposes a new technology to ensure enhanced security of personal identification information or binary images through the use of encryption and multiplexing processes. Orthogonal codes are employed to encrypt the given input images so that multiple encoded images can then be mixed together to save storage space or transmission bandwidth. The multiplexed and encoded image is further encrypted employing multiple reference-based joint transform correlation. The address code is fed into four channels after performing phase shifting on them by different amount. The input image is introduced to the channels to obtain joint power spectra (JPS) signals through Fourier transformation. The resultant signals are phase-shifted and then combined to form a modified JPS signal which is then inverse Fourier transformed to yield the final and highly secure encrypted image. At the receiver, the image is Fourier transformed and multiplied by the address code used in encryption. Inverse Fourier transformation yields the multiplexed and encoded image which is then decoded using orthogonal codes. The proposed technique enhances the security performance by implementing orthogonal coding and nonlinear encryption algorithms so that no unauthorized access to or interception of information is possible. Performance of the technique is evaluated through computer simulation.
Starting Page	470
Ending Page	475
File Size	388233
Page Count	6
File Format	PDF
ISBN	9781424484966
e-ISBN	9781424484973
DOI	10.1109/ICCITECHN.2010.5723903
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-23
Publisher Place	Bangladesh
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiplexing Optical polarization multiplexing joint transform correlation Optical imaging orthogonal code joint power spectrum Encryption encoding Nonlinear optics
Content Type	Text
Resource Type	Article

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