Log Message:
Import svrcore-4.0.4 as wip/svrcore.

The Netscape svrcore library is a kind of object-oriented package
for handling PIN requests from NSS.

Terry Hayes wrote the Netscape svrcore library in 1998.
Valerie Chu wrote the ntgetpin.c and related files.

svrcore used to contain two major parts.

The first part is what we released on mozilla.  It is a kind of
object-oriented package for handling PIN requests from NSS. The
idea was to provide a standard way for servers to allow PIN input
from a file or from the terminal.  There is also a PIN handler
that caches the PIN in memory after encrypting it with a key on
a device (such as a Fortezza card). This allowed a server to
restart without having to reenter the PIN. However since the PIN
is encrypted, a core dump would not expose it.  In addition,
removing the device would also make the PIN inaccessible.