Function crypto_box_detached_afternm 

pub fn crypto_box_detached_afternm(
    ciphertext: &mut [u8],
    mac: &mut Mac,
    message: &[u8],
    nonce: &Nonce,
    key: &Key,
) -> Result<(), Error>

Precalculation variant of crypto_box_detached.

Compatible with libsodium’s crypto_box_detached_afternm.

Errors

Returns an error if message is too long or ciphertext is shorter than message.