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2. Suppose that an adversary is trying to find a hash collision using a brute force attack. (a) What is the expected number of trials
2. Suppose that an adversary is trying to find a hash collision using a brute force attack. (a) What is the expected number of trials needed to produce a hash collision probability of 0.9 when MD5 is used? (7 pts) b) What is the expected number of trials needed to produce a hash collision probability of 0.9 when SHA-1 is used? (7 pts)
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