Re:Ask HN: WebAuthn – Replace Password or Second Factor?
by iwillbenice on Friday October 14, 2022 @12:25PM
(#33205606)
Agree completely with your concerns with regards to lost/stolen keys.
Most of the places where I've been able to use my Yubikeys (FIDO2) also offer a very clear list of enrolled/registered keys, along with either a hash or serial number of the key. It makes revoking a key pretty easy in my experience.
I'm less keen on the idea of centralized repo for dead keys - each key is unique to the site in question, so there will be no need to share the existence of that revoked key's identifer with other providers - the data is meaningless to anyone else.
Most of the places where I've been able to use my Yubikeys (FIDO2) also offer a very clear list of enrolled/registered keys, along with either a hash or serial number of the key. It makes revoking a key pretty easy in my experience.
I'm less keen on the idea of centralized repo for dead keys - each key is unique to the site in question, so there will be no need to share the existence of that revoked key's identifer with other providers - the data is meaningless to anyone else.