Exploring XML Encryption
PeterMan writes "Here's a good XML Encription article that examines the usage model of XML Encryption with the help of a use case scenario. It presents a simple demo application, explaining how it uses the XML Encryption implementation. It then continues with the use of JCA/JCE classes to support cryptography. Finally, It discusses the applications of XML Encryption in SOAP-based Web services."
This is probably not the best approach to getting things usably deployed, and there has been some debate in the groups about this. At the moment the XML-ueber-alles side is winning.