public OutputStream wrapOutputStream(OutputStream out) {
        return new CipherOutputStream(out, cipher);
    }
Returns a wrapping <code>OutputStream</code> that, depending on the cipher mode, either
encrypts or decrypts all data that is written to it before passing it on to <code>out</code>.
security-utils/src/main/java/com/yahoo/security/AeadCipher.java