Question: Say you are given an 80-bit hash function as in the previous question. Using random guessing, roughly how many guesses should it take to find

Say you are given an 80-bit hash function as in the previous question. Using random guessing, roughly how many guesses should it take to find two messages with the same digest?

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Say you are given a hash function that produces an 80-bit digest, along with the digest d of an unknown message. Using random guessing, how many guesses would you expect it to take to find a preimage of d ?

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