Silly question: how do we know that the decrypted message is correct?
Isn’t it feasible that a given ciphertext could mean any number of different things under different settings? If so, we don’t know whether this setting happens to match a plausible plaintext or whether this really was the plaintext the sender intended to send.
Isn’t it feasible that a given ciphertext could mean any number of different things under different settings? If so, we don’t know whether this setting happens to match a plausible plaintext or whether this really was the plaintext the sender intended to send.