KnpUGuard: Symfony Authentication with a Smile Tutorial
Todo! Check back...
Yes, I wish I had time to fill this in, but not yet!
But here's the tip: you need the knpuniversity/guard library (or Symfony 2.8, where it is in core) and then you need to re-recreate the GuardAuthenticationFactory (https://github.com/symfony/... in this format: http://silex.sensiolabs.org...
Honestly, that may be really easy! ... or it may be tricky. I'll take a look at it soon, but it could be a few weeks - it's a busy time before Symfony3! If you have any luck - let me know!
Really interested in that! Is there any resource for implementing Guard with Silex?