Gopinathan, Unnikrishnan and Monaghan, David S. and Naughton, Thomas J. and Sheridan, John T. (2006) A known-plaintext heuristic attack on the Fourier plane encryption algorithm. Optics Express, 14 (8). pp. 3181-3186. ISSN 1094-4087

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Abstract

The Fourier plane encryption algorithm is subjected to a known-plaintext attack. The simulated annealing heuristic algorithm is used to estimate the key, using a known plaintext-ciphertext pair, which decrypts the ciphertext with arbitrarily low error. The strength of the algorithm is tested by using this estimated key to decrypt a different ciphertext which was also encrypted using the same original key. We assume that the plaintext is amplitude-encoded real-valued image, and analyze only the mathematical algorithm rather than a real optical system that can be more secure. The Fourier plane encryption algorithm is found to be susceptible to a known-plaintext heuristic attack.

Item Type:	Article
Keywords:	Fourier optics; optical signal processing; Optical data processing; Optical computing; Information processing;
Academic Unit:	Faculty of Science and Engineering > Computer Science
Item ID:	8629
Identification Number:	https://doi.org/10.1364/OE.14.003181
Depositing User:	Thomas Naughton
Date Deposited:	17 Aug 2017 15:34
Journal or Publication Title:	Optics Express
Publisher:	Optical Society of America
Refereed:	Yes
Funders:	Science Foundation Ireland
URI:	https://www.osapublishing.org
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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