4. The following is a part of Feistel structure in DES. 1)Explain which part of the plaintext is encrypted in this round? L0 or R0? 2)Please Draw the Block diagram of the f-function.
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In each round, one half is encrypted while the other half remains unchanged. So, in this round, either L0 or R0 is encrypted, depending on the specific round number. Without further information, it is not possible to determine which half is encrypted in this Show more…
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