Error while checking gpg sig in pgp

David Shaw dshaw at
Tue Mar 9 10:26:43 CET 2004

On Sat, Mar 06, 2004 at 08:20:36PM -0600, J Vender wrote:
> I've been misunderstanding something here, it seems.
> GPG reports a message "you can only make detached or clear
> signatures while in --pgp2 mode, this message may not be usable by
> PGP2.x"
> I've been trying to sign the text in the textfile with GPG using
> gpg -s filename
> and I have the pgp2 option set in my gpg.conf file (I've also tried to add it to the command line with no difference)
> Is a message signed in GPG using the -s or --sign flag not
> verifiable using PGP2.x? According to the message above, it looks
> like PGP2.x can only verify GPG signed messages if they're
> clearsigned or detached-signed, but no if they're -s signed.

That is correct.  You can try to use -s or --sign along with --pgp2
but GnuPG will just give you the warning message you saw, and not do


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