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


    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:

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