A known-plaintext heuristic attack on the Fourier plane encryption algorithm

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Title: A known-plaintext heuristic attack on the Fourier plane encryption algorithm
Authors: Gopinathan, Unnikrishnan
Monaghan, David S.
Naughton, Thomas J.
Sheridan, John T.
Permanent link: http://hdl.handle.net/10197/3370
Date: 17-Apr-2006
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.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: Optical Society of America
Copyright (published version): 2006 Optical Society of America
Keywords: Fourier plane encryption algorithm
Subject LCSH: Fourier transform optics
Heuristic algorithms
Optical data processing
DOI: 10.1364/OE.14.003181
Language: en
Status of Item: Peer reviewed
Appears in Collections:Electrical and Electronic Engineering Research Collection

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