4. ADFGVX cipher (a.) (5 points) Encrypt the following message A STUDY IN SCARLET using permutation 5 1 3 6 2 4 and the key (b.) (3 points) Construct the ADFGVX substitution matrix using the keyword OPHELIA (c) (7 points) Use the permutation 3 4 8 9 1 10 6 2 5 7 and the key OPHELIA from part (b) to decrypt the following message: DAAAFA GDDAFA GFADAG DXAAFA AGAGAF AGGGGA ADFDGGAFDGAG AGDDGD DAGXVX