Question: 1 ) Encrypt the message ATTACK AT DAWN using a 3 - rail fence cipher. 2 ) Consider a 3 x 2 Hill Cipher matrix

1) Encrypt the message "ATTACK AT DAWN" using a 3-rail fence cipher.
2) Consider a 3x2 Hill Cipher matrix A =[[2,1,5],[7,4,3],[1,0,2]]. Encrypt the plaintext "ATTACK" using matrix multiplication.

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