Consider a multiplicative cipher defined by C = (P xk) mod 26 analogous to the generalized (additive) Caesar cipher. What is the encryption of
Consider a multiplicative cipher defined by C = (P xk) mod 26 analogous to the generalized (additive) Caesar cipher. What is the encryption of "goodby" using the key k = 7? What is the formula for decryption? How many different keys are possible? Explain.
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Authors: Michael T. Goodrich, Roberto Tamassia, Michael H. Goldwasser
1st edition
1118290275, 1-118-54958-2, 978-1118290279
