gpg on public system?

[Jan Petranek]

On 2 Feb 2001, Florian Weimer wrote:
> > is there a secure way of using gpg in a more or less
> > public multiuser-system - say, a university's computer pool?
>
> No, this is impossible.  If the system is insecure, you cannot keep
> your private keys secret.

Well, that indeed is a point. So I have to put up with minimizing the
risks. Any suggestions to that?

(of course the better alternative would be a really safe system, but that
is beyond the rights of my account :(
Thanks again,

JanP