Question: (3).Transposition ciphers write letters of message out in rows over a specified number of columns. then reorder the columns according to some key before reading

(3).Transposition ciphers

write letters of message out in rows over a specified number of columns. then reorder the columns according to some key before reading off the rows

Key: 5 1 6 3 4 7 2

Ciphertext: EGNCJYHPXLTHTEOURAENGIIXTTTELBOELTE

please use this method to decrypt the ciphertext

Plaintext: 1 2 3 4 5 6 7

(b)Encrypt the following plaintext troops heading west need more supplies. send general more men to aid

1 2 3 4 5 6 7 8

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