Which rounds are affected by bit flip during des encryption, Computer Network Security

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Which rounds are affected by bit flip during des encryption

Problem

An avalanche effect is desirable for the key: A one-bit change in a key should result in a dramatically different ciphertext if the plaintext is unchanged. Assume an encryption with a given key. Now assume the key bit at position 1 (prior to PC - 1) is being flipped. Which S-boxes in which rounds are affected by the bit flip during DES encryption?

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Computer Network Security: Which rounds are affected by bit flip during des encryption

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Computer Network Security: Which rounds are affected by bit flip during des encryption

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