I'm looking into how to make one of my usbs a security key and I found a guide to do so inside Linux here: https://bytevarsity.com/how-to-make-a-usb-security-key/
Two packages that the guide says to install (pamusb-tools & libpam-usb) are nowhere to be found when searching for them. I found previous questions where someone asked the same/similar question in 16.04 (Ubuntu 16.04 Unable to locate package pamusb-tools), but there weren't any answers and the few suggestions given aren't viable as they pull up effectual 404's.
Did these two packages become deprecated and removed from repo?