<s>
factotum	B-Application
is	O
a	O
password	O
management	O
and	O
authentication	O
protocol	O
negotiation	O
virtual	B-Application
file	I-Application
system	I-Application
for	O
Plan	B-Operating_System
9	I-Operating_System
from	I-Operating_System
Bell	I-Operating_System
Labs	I-Operating_System
.	O
</s>
<s>
When	O
a	O
program	O
wants	O
to	O
authenticate	O
to	O
a	O
service	O
,	O
it	O
requests	O
a	O
key	O
from	O
factotum	B-Application
.	O
</s>
<s>
If	O
factotum	B-Application
does	O
not	O
have	O
the	O
key	O
,	O
it	O
requests	O
it	O
from	O
the	O
users	O
either	O
via	O
the	O
terminal	O
window	O
or	O
auth/fgui	O
which	O
is	O
then	O
stored	O
in	O
volatile	B-General_Concept
memory	I-General_Concept
.	O
</s>
