Question: Question : Do secret key ciphers have distinguishability issues? See Problem 5.3. below for the definition: Problem 5.3: Ciphertext Distinguishability Instance: An encryption function ;

Question: Do secret key ciphers have distinguishability issues? See Problem 5.3. below for the definition:

Problem 5.3: Ciphertext Distinguishability

Instance: An encryption function Question: Do secret key ciphers have distinguishability issues? See Problem 5.3. below ; two plaintexts x₁,x₂ in X; and a ciphertext y = f(x_i), where i in {1,2}.

Question: Is i = 1?

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