[Cryptography] Any PAM experts out there?

[Adam Sampson]

Phillip Hallam-Baker <phill at hallambaker.com> writes:

> So if the user is using password to log in on Windows or OSX,
> we make use of the platform keystore [...]
> Unfortunately, I don't know how to do this on the Linux platforms.

You probably want a library that talks the DBus "Secret Service"
protocol, e.g. the GNOME project's libsecret:
  https://wiki.gnome.org/Projects/Libsecret

There's a pretty good overview of the general idea here:
  https://lwn.net/Articles/490518/

-- 
Adam Sampson <ats at offog.org>                         <http://offog.org/>