Introduction
A ciphertext-only attack (COA) models the scenario where the adversary only has access to a one or more ciphertexts . The more restricted model where the adversary is only given one ciphertext is called single-COA.
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A ciphertext-only attack (COA) models the scenario where the adversary only has access to a one or more ciphertexts c1,c2,.... The more restricted model where the adversary is only given one ciphertext c is called single-COA.
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