Question: AES utilizes which block cipher design structure? Select one: a . Feistel cipher, similar to DES but with enhanced complexity. b . Public - key

AES utilizes which block cipher design structure?
Select one:
a. Feistel cipher, similar to DES but with enhanced complexity.
b. Public-key cryptography, relying on different keys for encryption and decryption.
c. Stream cipher, encrypting the message bit by bit with a keystream.
d. Substitution-permutation network, employing layers of S-boxes and permutation-boxes.

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