Question: 1) What is the difference between diffusion and confusion? Give example, using the operations in DES. 2) Use AES as an example, to illustrate the

1) What is the difference between diffusion and confusion? Give example, using the operations in DES. 2) Use AES as an example, to illustrate the difference between a block cipher and a stream cipher. 3) Please introduce the structure with illustration of the Feistel cipher

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