We had originally planned to go all-in on passkeys for ONCE/Campfire, and we built the early authentication system entirely around that. It was not a simple setup! Handling passkeys properly is surprisingly complicated on the backend, but we got it done. Unfortunately, the user experience kinda sucked, so we ended up ripping it all out...
YOU JUST DID, below
neat.
… on your device tethered to a single app by a single vendor and their closed data store
… and tethered to prevent you from churning.
… wait online to …
… or send it again. Or again. Try again. Maybe mail it?
Yeah. Just click (tap) a button (enter a code).
Using a big-brand MFA setup at one job that requires ‘one button’ and ‘get a notification’ and ‘click a button’, I know you’re glossing over the network issues HEAV-I-LY.
Now do it in airplane mode. Do it when the token organization is offline. Do it when there’s no power because the hurricane hit and there’s no cell, no data, no phones, and your DC is on its last hour of battery and you have to log in because the failover didn’t run.
Do it when your phone fell on its face in the rain into a puddle and it’s not nokia.
Do it when you either have cell service and 5% battery, or 100% battery from inside the DC and no cell service.
Do it when you’re tired, hungry, drunk, lost your glasses in the car accident.
The D in DR means DISASTER. Consider it.