Few questions

[lannert at uni-duesseldorf.de]

"Werner Koch" wrote:
> > 2) A passphrase argument
> > It would be nice, if the passphrase can be passed to gpg as a commandline 
> > argument in batchmode (like pgps ... -z <passphrase>).
> > I did not found the possibility yet. It would be easier then to integrate gpg 
> > into a mailer like exmh.
> 
> NO! Try this:
> 
> 	ps -aw
> 
> and everyone can see the passphrase.
> 
> I suggest you do this: 
> 
> 	echo "Secret and geheime Passphrase" | pgp --passphrase-fd 0 ...

This exposes the passphrase as well (as long as the echo process is
running), I'm afraid. Better put the passphrase into a sufficiently
well-protected(*) file and 'cat filename | gpg --passphrase-fd 0 ...'.

(*) whatever that means ... you won't protect anything against root;
    command arguments, however, are visible to anybody who's logged in.

  Detlef