<s>
OpenPAM	B-Application
is	O
a	O
BSD-licensed	O
implementation	O
of	O
PAM	B-Application
used	O
by	O
FreeBSD	B-Operating_System
,	O
NetBSD	B-Device
,	O
DragonFly	B-Application
BSD	I-Application
and	O
macOS	B-Application
(	O
starting	O
with	O
Snow	B-Device
Leopard	I-Device
)	O
,	O
</s>
<s>
and	O
offered	O
as	O
an	O
alternative	O
to	O
Linux	B-Application
PAM	I-Application
in	O
certain	O
Linux	B-Application
distributions	I-Application
.	O
</s>
<s>
OpenPAM	B-Application
was	O
developed	O
for	O
the	O
FreeBSD	B-Operating_System
Project	I-Operating_System
by	O
Dag-Erling	O
Smørgrav	O
and	O
NAI	O
Labs	O
,	O
the	O
Security	O
Research	O
Division	O
of	O
Network	O
Associates	O
,	O
Inc	O
.	O
under	O
DARPA/SPAWAR	O
contract	O
N66001-01-C-8035	O
(	O
"	O
CBOSS	O
"	O
)	O
,	O
as	O
part	O
of	O
the	O
DARPA	O
CHATS	O
research	O
program	O
.	O
</s>
<s>
On	O
1	O
January	O
2008	O
,	O
OpenPAM	B-Application
was	O
one	O
of	O
eleven	O
projects	O
selected	O
by	O
Coverity	O
for	O
promotion	O
to	O
Rung2	O
of	O
their	O
DHS-funded	O
Open	O
Source	O
Hardening	O
Project	O
,	O
which	O
tracks	O
bugs	O
found	O
in	O
open-source	B-Application
software	I-Application
by	O
Coverity	O
's	O
Prevent	O
static	O
program	O
analysis	O
tool	O
.	O
</s>
<s>
On	O
23	O
September	O
2009	O
,	O
OpenPAM	B-Application
was	O
promoted	O
to	O
Rung3	O
,	O
along	O
with	O
Ruby	B-Language
,	O
Samba	B-Language
and	O
Tor	B-Application
.	O
</s>
