Can you devise a meet-in-the- middle attack for a triple des

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Reference no: EM131907101

Problem

1. If the key with parity bit (64 bits) is 0123 ABCD 2562 1456, find the first round key.

2. Using a plaintext block of all So and a 56-bit key of all So, prove the key-complement weakness assuming that DES is made only of one round.

3. Can you devise a meet-in-the- middle attack for a triple DES?

Reference no: EM131907101

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