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What are the inputs of the "f" function?


Question 6 options:


The first 32

bits of the 64-bit block and a sub-key of 48 bits.


The first 48 bits of the 64-bit block and a sub-key of 32 bits.


The last 48 bits of the 64-bit block and a sub-key of 32 bits.


The last 32 bits of the 64-bit block and a sub-key of 48 bits.


The last 32 bits of the 64-bit block and a sub-key of 56 bits.

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