Question: QUESTION 7 Suppose that a block cipher uses a pure random permuted table with 128 input block. Answer the following questions: (a) How many different

QUESTION 7 Suppose that a block cipher uses a pure random

QUESTION 7 Suppose that a block cipher uses a pure random permuted table with 128 input block. Answer the following questions: (a) How many different record I will get inside this ideal table? (b) In order for a brute force attacker to find this ideal table, what would be the total number ot tables he needs to generate and test? (c) What makes this ideal random permuted table impractical to use? Explain

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