encrypting and signing for pgp2

[Michael Roth]

On Mon, 12 Jul 1999, Werner Koch wrote:

> > Hmm, is it not enough to do the following?
> > 
> >     1. Read all data from stdin and write it to a tempfile.
> >     2. Sign the tempfile.
> 
> No, the signature will still be at the end.  Execpt for the case of
> clear text signatures but those can't be transformed to a standard
> signed message

Hmm. I tried the following:

    gpg --detach-sign -u test2 -o signature.gpg message
    gpg --store -z 0 -o data.gpg message
    cat signature.gpg data.gpg >result.gpg

It looks like that this work very well. However, I'm not able to compress
and/or encrypt the result correctly. Because GnuPG builds of course a
literal data packet. IMHO it would be nice, to have an option that gpg
doesn't build the literal data packet and just assumes that the input is a
valid rfc1991/OpenPGP packet. 
With such an option I think it will become possible that pgpgpg or a
library is able to build every thinkable combination of packets.


cu

                    Michael Roth