@Override
    public byte[] wrap(byte[] outgoing, int offset, int len)
        throws SaslException {
        if (isComplete()) {
            throw new IllegalStateException("SCRAM-SHA-1 does not support integrity or privacy");
        } else {
            throw new IllegalStateException("SCRAM-SHA-1 authentication not completed");
        }
    }
Wraps a byte array to be sent to the client. SCRAM-SHA-1 supports no security layer.

@throws SaslException if attempted to use this method.
xmppserver/src/main/java/org/jivesoftware/openfire/sasl/ScramSha1SaslServer.java