GPG support patch for Balsa 1.3.6 :
----------------------------------

http://foxy.free.fr/balsa-1.3.6-gpg.patch

It provides support for PGP/GPG in mode text (RFC 2440) for signing and
verifying PGP/GPG signed messages. It requires GPGME v0.3.5 as minimum
(http://www.gnupg.org).

This patch is for developper only and is build with Balsas sources
v 1.3.6. Be careful when you test it (made backups of your mail directory
before using it).

To install it :

- tar xjvf balsa-1.3.6.tar.bz2
- cd balsa-1.3.6/
- patch -p1 < ../balsa-1.3.6-gpg.patch
- cp "autogen.sh" from CVS version
- ./autogen.sh --> rebuild "configure" with an "--enable-gpgme" option
- ./configure --enable-all --enable-gpgme
- make
- make install

It adds an option tab "Privacy" in "Parameters --> Preferences --> Mail
Options". In this tab, you have an checkbox to always verify PGP/GPG
signed message, an checkbox to sign message by default on compose 
and a set of radio buttons to choose key to sign message
(but this option has no effect at the present time).

In the main window with preview-pane, if you read a PGP/GPG signed 
message and the option in on, a window pop-ups with status of signed
message's verification.

In a message composition window, I add an option to sign message
with the default GPG key (option "Options --> Sign Message with
PGP/GPG"). If the option is selected, a request window appears to ask
your key's passphrase when you try to send the signed message.
You have 3 tries to enter correct GPG secret key's passphrase.

Please report me bugs and send me some PGP/GPG signed messages with
other MUA to test interoperability.

TODO :
- support for encrypt and decrypt PGP/GPG message
- better code for handling error
- add options in GUI
- support for PGP/MIME types (RFC 3156)

Thx, Foxy. My public GPG key is here :
http://foxy.free.fr/foxy-gpg_key.asc

-- 
Laurent Cheylus <foxy@free.fr> OpenPGP ID 0x5B766EC2