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Is the following statement True or False: 3-DES, which uses three (single) DES encryption operations in series and three independent keys C = Enc(K3, Enc(K2,

Is the following statement True or False: 3-DES, which uses three (single) DES encryption operations in series and three independent keys C = Enc(K3, Enc(K2, Enc(K1, P))) has an effective keyspace size of 2^168 under the known-plaintext attack? Argue your answer in details.

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