OpenPAM
OpenPAM is a BSD-licensed implementation of PAM used by FreeBSD, NetBSD, DragonFly BSD and macOS (starting with Snow Leopard), and offered as an alternative to Linux PAM in certain Linux distributions[which? ]. OpenPAM was developed for the FreeBSD Project by Dag-Erling Smørgrav and NAI Labs, the Security Research Division of Network Associates, Inc.