MTOM Java WebServices authentication

Im looking for a simple and secure way to authenticate users throug axis2/mtom webservice...

Something like http authentication... or session cookie auth.

A live example will help me a lot.

I have this w开发者_如何学Goebservice that receive an image and process it... i will need to ask for an authentication and a way to process that user with the image (example, move the image to the user's folder)...

Thanks...

I've found that the easiest way is to do it at the deployment level. e.g. For Tomcat