>Because the returned payload isn't necessarily uniform Wrong. Flipping a single plaintext bit flips all ciphertext bits with 50% probability. >Because you ar

>Because the returned payload isn't necessarily uniform Wrong. Flipping a single plaintext bit flips all ciphertext bits with 50% probability. >Because you aren't guaranteed uniqueness Wrong. Encryption is bijective. >And because the overhead for doing it that way may be too high Wrong. Symmetric ciphers are extremely fast.