Multi yubikey support

[sebastianrasor]

If you try to use this tool with more than one YubiKey plugged in at once, the program will get confused in some way and permanently indicate that a key needs to be touched (until all keys are removed from the system)

[maximbaz]

Agree - I believe it's the HMAC detector that is faulty, since it's based on device plugged and unplugged events...

https://github.com/maximbaz/yubikey-touch-detector/blob/main/detector/hmac.go

[sebastianrasor]

Do these plugged and unplugged events contain any information unique to each YubiKey like a serial number? If so, it should be possible to keep track of multiple keys

[maximbaz]

Hard to say without doing a bunch of testing... Will get to this at some point, but help is very welcome 😅

By the way, as a temporary workaround you can potentially ignore HMAC events altogether (events from this app include "reason").