Cryptography MCQ set number 00522

1. In affine block cipher systems if f(m)=Am + t, what is f(m1+m2) ? a) f(m1) + f(m2) + t b) f(m1) + f(m2) + 2t c) f(m1) + t d) f(m1) + f(m2) AnswerAnswer: a [Reason:] In general f(∑(i=1 to n) m_i = ∑(i=1 to n) f(m_i) + tδ_n) where δ_n=0 if n is…

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