A colleague asked me about XML Signature, and I just remenbered that my old Ph.D. thesis ( " Confidentiality of XML documents by pool encryption " ) is online, which contains (besides theoretical nonsense) a nice introduction to XML Signature in chapter...

WS-Policy and WS-PolicyAttachment are republished: http://specs.xmlsoap.org/ws/2004/09/policy/

We (European Microsoft Innovation Center) are still looking for new colleagues, software devs and program managers, all preferrably with a researchy touch: http://www.microsoft.com/emea/emic/joboffers.mspx