The type of attack that the attacker is performing is a dictionary attack.
A dictionary attack is a way of breaking right into a password-protected computer, community, or different IT useful resource with the aid of using systematically coming into each phrase in a dictionary as a password.
A dictionary attack also can be utilized an try to discover the important thing vital to decrypt an encrypted message or document.
The missing information in the question:
ciphertext-only
brute force
dictionary
replay
Therefore, The type of attack that the attacker is performing is a dictionary attack.
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