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    On the equivalence of authentication codes and robust (2,2)-threshold schemes

    Paterson, Maura and Stinson, D.R. (2019) On the equivalence of authentication codes and robust (2,2)-threshold schemes. Technical Report. Birkbeck, University of London, London, UK.

    Preprint_50_-_Paterson_and_Stinson_-_On_the_Equivalence_of_Authentication_Codes_and_Robust_(2,2)_Threshold_Schemes.pdf - Published Version of Record

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    In this paper, we show a “direct” equivalence between certain authentication codes and robust secret sharing schemes. It was previously known that authentication codes and robust secret sharing schemes are closely related to similar types of designs, but direct equivalences had not been considered in the literature. Our new equivalences motivate the consideration of a certain “key-substitution attack.” We study this attack and analyze it in the setting of “dual authentication codes.” We also show how this viewpoint provides a nice way to prove properties and generalizations of some known constructions.


    Item Type: Monograph (Technical Report)
    Additional Information: Birkbeck Pure Mathematics Preprint Series #50
    School: School of Business, Economics & Informatics > Economics, Mathematics and Statistics
    Depositing User: Maura Paterson
    Date Deposited: 15 Jun 2020 10:50
    Last Modified: 11 Feb 2021 17:18


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