Let's say I encrypt a message using AES/CBC twice, with the same key but two different IVs. Is this safe? Or can the resulting ciphertexts be used against each other to obtain information about the plaintext?
I understand that the point of using proper IV values is to prevent equivalent plaintexts from producing equivalent ciphertexts. The question is, given that an attacker knows that the same plaintext was used to generate two different ciphertexts with the same key but two different IVs, does this leak information?