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//! Stream cryptosystems

pub mod chacha20;

pub trait StreamEncrypt {
    fn encrypt_stream<I, O>(&mut self, input: I, output: O)
        where I: AsRef<[u8]>,
              O: AsMut<[u8]>;
}

pub trait StreamDecrypt {
    fn decrypt_stream<I, O>(&mut self, input: I, output: O)
        where I: AsRef<[u8]>,
              O: AsMut<[u8]>;
}