1. Let {01, 02, 03, ..., 026!} be the set of permutations of the alphabet A = {A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z} and consider the simple substitution cryptosystem with σκ A B C D E F G H I J K L M X MTAK ZQB NOLE N O P Q R S T U V W X Y Z I F G R V JH CY UDPW, and key k. (a) Compute C = e(AUBUR NUNIVERSIT YATMO NTGOM ERY, K). (b) Compute M = d(NIZFV SXHNF IHBKF VPXIA KIHVF GP, k).

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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1. Let (01, 02, 03,..., 026!} be the set of permutations of the alphabet
A = {A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z},
and consider the simple substitution cryptosystem with
ok =
A B C D E F G H I J K L M
X MTAK ZQB NO LES
N O P Q R S T U V W X Y Z
IF G R V JH CY UDP W
and key k.
(a) Compute C = e(AUBUR NUNIV ERSIT YATMO NTGOM ERY, k).
(b) Compute M = d(NIZFV SXHNF IHBKF VPXIA KIHVF GP, k).
Transcribed Image Text:1. Let (01, 02, 03,..., 026!} be the set of permutations of the alphabet A = {A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z}, and consider the simple substitution cryptosystem with ok = A B C D E F G H I J K L M X MTAK ZQB NO LES N O P Q R S T U V W X Y Z IF G R V JH CY UDP W and key k. (a) Compute C = e(AUBUR NUNIV ERSIT YATMO NTGOM ERY, k). (b) Compute M = d(NIZFV SXHNF IHBKF VPXIA KIHVF GP, k).
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