I am bringing an old desktop payment system up to date to work with the
payment providers new system and also provide a wrapper for a website
which transfers the user to their hosted payment page.
The website is built on the traditional LAMP server. However the website
requires a security key
> I was looking for a Linux equivalent but there does not seem to be one,
> but I assume there must be a technique employed on Linux service to
> accomplish the same thing.
I'd do that with LUKS. Loopback-mount the volume holding the key, and lock
the whole thing down with SELinux.
HTH
Vic.