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    Collision in double random phase encoding


    Situ, Guohai and Monaghan, David S. and Naughton, Thomas J. and Sheridan, John T. and Pedrini, Giancarlo and Osten, Wolfgang (2008) Collision in double random phase encoding. Optics Communications, 281 (20). pp. 5122-5125. ISSN 0030-4018

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    Abstract

    Collision is a situation that occurs when two or more distinct inputs into a security system produce identical outputs, which is undesirable in some security applications. This is especially true of the applications of watermarking and authentication. In this manuscript we present a study of the collision property of double random phase encoding. We show that one can produce meaningful collisions from the cyphertext of a watermark embedded in a host image by use of phase retrieval techniques.

    Item Type: Article
    Keywords: Double random phase encoding; Collision; Cryptanalysis; Phase retrieval;
    Academic Unit: Faculty of Science and Engineering > Computer Science
    Item ID: 8634
    Identification Number: https://doi.org/10.1016/j.optcom.2008.07.011
    Depositing User: Thomas Naughton
    Date Deposited: 18 Aug 2017 14:52
    Journal or Publication Title: Optics Communications
    Publisher: Elsevier
    Refereed: Yes
    Funders: Alexander von Humboldt Foundation, European Commission Marie Curie Intra-European Individual Fellowship, Science Foundation Ireland, Enterprise Ireland, Irish Research Council for Science Engineering and Technology (IRCSET)
    URI:

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