Hi all, As promised I’ve put up some of the ebuilds needed to use the YubiKey in Gentoo.   This includes a PAM module for stand-alone authentication with the YubiKey, which I have patched to support concatenated two-factor authentication.  These are in a new overlay: git://git.longlandclan.yi.org/overlays/yubikey.git http://git.longlandclan.yi.org/git/overlays/yubikey.git Stand-alone two factor authentication: Password + YubiKey with YubiPAM [...]