So I found a diagram online, that shows the 4-way-handshake:
The way I understand it, when a station (STA) is trying to authenticate to an access point (AP), the AP sends the ANonce (authentication number, once). Then the handshake continues..
What I'm struggling to see, is where WPS comes into play? When you enter a WPS pin into your cell phone or laptop, where does that kick in? Does that kick off the 4-way-handshake? Or does this skip the 4-way handshake?