Question: Find the greatest common divisor of 26 and 11 using Euclidean algorithm. An encryption function is provided by an affine cipher f:XX, f(x) =

Find the greatest common divisor of 26 and 11 using Euclidean algorithm.

Find the greatest common divisor of 26 and 11 using Euclidean algorithm. An encryption function is provided by an affine cipher f:XX, f(x) = (11x + 7)mod 26, X = {1,2,..., 26} Find the decryption key for the above affine cipher. Encrypt the message with the code 12 and 23.

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