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Q6: DES has an effective key size of 56 bits. AES has a key size of 128 bits, 192 bits, or 256 bits, depending on

Q6: DES has an effective key size of 56 bits. AES has a key size of 128 bits, 192 bits, or 256 bits, depending on the variant used. Calculate the size of the keyspace for AES with a 128-bit key and show your calculation. What is the ratio between the size of the DES keyspace and the size of this AES keyspace? Show your calculation for the ratio.

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