Answer: Consider the cryptosystem in which the integer x associated with a letter is
Chapter 7, Problem 5(choose chapter or problem)
Consider the cryptosystem in which the integer x associated with a letter is transformed into f(x) = 3x mod 26. In this case, decryption is defined by f1(x) = 9x mod 26. (a) Into which secret word is the word GUM transformed? (b) Which word is transformed into the secret word FOYN? (c) Which word is transformed into the secret word JAN?
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