Question: [7 pts] Assume we perform a brute force attack against DES with one pair of plaintext and ciphertext How many keys do we have to

[7 pts] Assume we perform a brute force attack against DES

[7 pts] Assume we perform a brute force attack against DES with one pair of plaintext and ciphertext How many keys do we have to test in a worst-case scenario if we apply an exhaustive key search? How many on average

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