title: Where can I find some good WS-Security introductions and tutorials?
body: <p>Can anyone point me to some decent introductions to WS-Security?</p>
  
  <p>I'm looking for tutorials or something that provide a fairly gentle introduction to the subject, though I don't mind if it assumes basic knowledge of web services and SOAP. Most of the stuff I've seen so far is very technical and you need a lot of complex, detailed background knowledge to understand it properly.</p>
  
  <p>We have to implement a web service in PHP and one or more clients in .NET, so resources covering both would be much appreciated.</p>