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Question 2 For a string of bits S, let S denote the complementary string obtained by changing ali the Is to Os and all the

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Question 2 For a string of bits S, let S denote the complementary string obtained by changing ali the Is to Os and all the Os to 1s (equivalently, S S11111..). Show that if the DES key K encrypts P to C, then K encrypts P to (Hint: This has nothing to do with the structure of the S-boxes. To do the problem, just work through the encryption algorithm.)

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