2D Non-separable Linear Canonical Transform (2D-NS-LCT) based cryptography

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Title: 2D Non-separable Linear Canonical Transform (2D-NS-LCT) based cryptography
Authors: Zhao, Liang
Muniraj, Inbarasan
Healy, John J.
Malallah, Ra'ed
Cui, Xiao-Guang
Ryle, James P.
Permanent link: http://hdl.handle.net/10197/8720
Date: 27-Apr-2017
Abstract: The 2D non-separable linear canonical transform (2D-NS-LCT) can describe a variety of paraxial optical systems. Digital algorithms to numerically evaluate the 2D-NS-LCTs are not only important in modeling the light field propagations but also of interest in various signal processing based applications, for instance optical encryption. Therefore, in this paper, for the first time, a 2D-NS-LCT based optical Double-random-Phase-Encryption (DRPE) system is proposed which offers encrypting information in multiple degrees of freedom. Compared with the traditional systems, i.e. (i) Fourier transform (FT); (ii) Fresnel transform (FST); (iii) Fractional Fourier transform (FRT); and (iv) Linear Canonical transform (LCT), based DRPE systems, the proposed system is more secure and robust as it encrypts the data with more degrees of freedom with an augmented key-space.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Keywords: Personal sensing;ABCD transform;Optical security and encryption;Numerical approximation and analysis;Discrete optical signal processing
Language: en
Status of Item: Peer reviewed
Conference Details: Optics and Optoelectronics, Prague, Czech Republic, 24-27 April 2017
Appears in Collections:Solar Energy Conversion (SEC) Cluster Research Collection
Electrical and Electronic Engineering Research Collection
Insight Research Collection

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