title: securing self hosted wcf without certificate
body: <p>I have a wcf service hosted in a windows service(c#).
  Actually, there is only one client application(c#) and multiple services, they are running in several machines and my client request actions to be executed on machines (something like that)
  This services are running on machines I dont have access to install certificates so the idea to register a port+certificate is not possible, also, i would need i think one certificate by machine which is also not possible at all.</p>
  
  <p>My question, 
  I want to secure communication between my wcf services and client application.
  I'm sending sensitive information so I need encryption.</p>
  
  <p>How can I do that without certificate involved ??</p>
  
  <p>thanks in advance</p>