Question: 4 . Consider the MAC domain extension construction 4 . 7 . Let n = 2 5 6 bits. What is the size of the

4. Consider the MAC domain extension construction 4.7. Let n=256 bits. What is the size of the tag t computed by this construction for a 4096-bit message M? Explain your answer.
4. Consider the MAC domain extension construction 4.7. Let n=256 bits.

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