Question: 3. Decrypt the message KIE LML MJ that was encrypted with the affine cipher with the function f(p)=(21.p) mod 26. (20 pts) Hint 1: First

3. Decrypt the message "KIE LML MJ" that was encrypted with

3. Decrypt the message "KIE LML MJ" that was encrypted with the affine cipher with the function f(p)=(21.p) mod 26. (20 pts) Hint 1: First find the inverse of 21 modulo 26, . Then solve the linear congruences for each letter. For example, for K (encoded as 10) solve .10=.21.x (mod 26). Hint 2: Find the encoding of letters below. ABCDEFGHID K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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