Original author(s)Dag-Erling Smørgrav
Developer(s)NAI Labs
Stable release
Tabebuia / February 24, 2019 (2019-02-24)
Written inC
Operating systemBSD, Linux, macOS et al.
LicenseModified BSD

OpenPAM is a BSD-licensed implementation of PAM used by FreeBSD, NetBSD, DragonFly BSD[1] and macOS (starting with Snow Leopard),[2] and offered as an alternative to Linux PAM in certain Linux distributions.

OpenPAM was developed for the FreeBSD Project by Dag-Erling Smørgrav and NAI Labs, the Security Research Division of Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS research program.

On 1 January 2008, OpenPAM was one of eleven projects selected by Coverity for promotion to Rung 2[clarification needed] of their DHS-funded Open Source Hardening Project, which tracks bugs found in open-source software by Coverity's Prevent static program analysis tool.[3][4] On 23 September 2009, OpenPAM was promoted to Rung 3, along with Ruby, Samba and Tor.[5]


  1. ^ PAM manual page of DragonFly BSD
  2. ^ "Latest Snow Leopard Build (10A190) Now Available [Seed Notes]". World of Apple. 2008-10-25. Archived from the original on 2008-11-04.
  3. ^ "Coverity Venture with U.S. Department of Homeland Security Resolves Quality Issues and Potential Security Vulnerabilities in 11 Major Open-Source Projects" (Press release). Coverity, Inc. 2008-01-08. Retrieved 2008-01-13.
  4. ^ Smørgrav, Dag-Erling (2008-01-13). "Coverity scans of OpenPAM". Retrieved 2009-09-23.
  5. ^ "Coverity Announces the State of Open Source Software Integrity" (Press release). Coverity, Inc. 2009-09-23. Retrieved 2009-09-23.