You generally shouldn't. But data at rest is different from data in transit in that you are vulnerable to a MITM with data in transit. Who cares if you're savin

You generally shouldn't. But data at rest is different from data in transit in that you are vulnerable to a MITM with data in transit. Who cares if you're saving an encrypted file or not, if you can't trust that it's the same file that you intended to access.