title: Base64 vs HEX for sending binary content over the internet in XML doc
body: <p>What is the best way of sending binary content between system inside an XML document</p>
  
  <p>I know of Base64 and Hex, what is the real difference.  I am currently using Base64 but need to include an external commons library for this where as with HEX I think I could just create a function.</p>