Binary package “pamu2fcfg” in ubuntu bionic
universal 2nd factor (U2F) PAM module command-line helper tool
Universal 2nd Factor (U2F) is an authentication mechanism that strengthen
other authentications, and through this PAM module it can be used to
require a U2F device in order to authenticate.
.
This package contains the command-line tool pamu2fcfg which is used
to generate the information needed by libpam-u2f to perform an U2F
authentication.