eRequest</i>. <br>
       ServerAuthContext implementation invokes validateRequest of one or more encapsulated ServerAuthModules. Modules
       validate credentials present in request (for example, decrypt and verify a signature).
   <li>If credentials valid and sufficient, authentication complete. <br>
       Perform authorization check on authenticated identity and, if successful, dispatch to requested service application.
   <li>Service application finished.
   <li>Invoke <i>secureResponse</i>. <br>
   