* <code>\x</code>: single byte.
* <code>{...}</code>: utf8 strings and or raw data, suffixed with a <code>\0</code> byte. To avoid confusion with the suffix byte, all <code>\0</code> and <code>\FF</code> bytes that occur in the raw data itself need to will be prefixed with <code>\FF</code>.
===Authentication (via [http://tools.ietf.org/html/rfc2195 cram-md5])===