GPG 1.1.92 bogus error for IDEA plugin

David Shaw dshaw at
Thu Sep 12 17:54:02 CEST 2002

On Thu, Sep 12, 2002 at 09:49:04AM -0500, Larry Ellis wrote:
> Hello,
> When encrypting with option --pgp2, I received the following series of
> messages:
> C:\junk>gpg -e -r ellis --pgp2 frank.txt
> gpg: It is only intended for test purposes and should NOT be
> gpg: used in a production environment or with production keys!
> gpg: encrypting a message in --pgp2 mode requires the IDEA cipher
> gpg: the IDEA cipher plugin is not present
> gpg: please see for more information
> gpg: this message may not be usable by PGP 2.x
> File `frank.gpg' exists. Overwrite (y/N)?
> In spite of the message about an absent IDEA plugin, there was an IDEA
> plugin in place (from,  and the encryption occurred
> successfully.  Also, the encryption *did* occur, in spite of the bogus
> message.

What happens when you run "gpg --version".  Is IDEA present there?  I
suspect you actually encrypted the file with 3DES.


   David Shaw  |  dshaw at  |  WWW
   "There are two major products that come out of Berkeley: LSD and UNIX.
      We don't believe this to be a coincidence." - Jeremy S. Anderson

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