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  1. Chapter and Conference Paper

    Cryptanalysis of “2R” Schemes

    The function decomposition problem can be stated as: Given the algebraic expression of the composition of two map**s, how can we identify the two factors? This problem is believed to be in general intractable [

    Ye Ding-Feng, Lam Kwok-Yan, Dai Zong-Duo in Advances in Cryptology — CRYPTO’ 99 (1999)