Date: Fri, 30 May 1997 01:40:27 +0300
From: Liviu Daia <daia@stoilow.imar.ro>

On 29 May 1997, Dave Ahn <ahn@indigo2.rad.bgsm.edu> wrote:
[...]
> The first: although MIME/PGP is looking to replace the old,
> concatenated style layout of PGP signed and/or encrypted messages, is
> there a planned or an existing configuration that will let me choose,
> on a per message basis, whether to use the MIME/PGP format or the old
> format? Perhaps as a menu option?

    This is a FAQ. The answer is: no, Mutt has no builtin support for
sending messages encrypted or signed the old way, and there is no plan
to add such a feature either. If you want to encrypt or sign a message
without MIME/PGP you can do that from within your editor (assuming
of course you have a decent one...). There are also quite a few perl
scripts available that might help you do this.

    OTOH, there is some limited support for decrypting and replying to
old-style PGP messages, provided that the messages in cause have the
right "Content-Type:" field. The following procmail recipe is very
useful for this purpose:

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

:0 H
* ^Content-Type: text/plain; charset=.*us-ascii.*
{
  :0 fBw
  * ^-----BEGIN PGP MESSAGE-----
  |formail -I "Content-Type: application/pgp; format=text; x-action=encryptsign"

  :0 fBw
  * ^-----BEGIN PGP SIGNED MESSAGE-----
  |formail -I "Content-Type: application/pgp; format=text; x-action=sign"
}

:0 fBw
* ^-----BEGIN PGP MESSAGE-----
|formail -a "Content-Type: application/pgp; format=text;
x-action=encryptsign"

:0 fBw
* ^-----BEGIN PGP SIGNED MESSAGE-----
|formail -a "Content-Type: application/pgp; format=text; x-action=sign"

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

> The second (and more important): is there an existing or planned
> support for PGP encrypted folders as opposed to individual messages in
> those folders? That is, handle secure folders that are auto-decryted
> at read time and auto-encrypted at write time? The negatives do exist,
> such as slow handling of large folders or interim, legible folders,
> but the feature would be very useful to help automatically secure
> private email from individuals not using PGP for various reasons.

    No, there is no such feature either, but you can get automatic
encryption of the incoming messages with another procmail recipe:

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

USER=your_user_name

:0 B
* !^-----BEGIN PGP
{
  :0 cfwh
  |formail -a "Content-Type: application/pgp; format=text; x-action=encrypt"

  :0 fwb
  |pgp -ea -f $USER 2>/dev/null
}

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

    Regards,

    Liviu

-- 
Dr. Liviu Daia                   e-mail:   daia@stoilow.imar.ro
Institute of Mathematics         web page: http://www.imar.ro/~daia
of the Romanian Academy          PGP key:  finger daia@stoilow.imar.ro