Question: If we have a 3 - round Feistel cipher with an internal hash function f , what is the result if: 1 . The f

If we have a 3-round Feistel cipher with an internal hash function f, what is the result if: 1. The f-function is broken and always outputs a block of 0 bits? 2. The f-function is broken and always outputs f(R,key)=R?

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