Changing GPG encryption for GCC copy

Changing GPG encryption for GCC copy

[Matt Ford]

Inspired by a recent thread I wondered if there was an elegant way of
switching the encryption key used when saving a copy of an encrypted
message via GCC.

That way I might be able to read some of the encrypted messages I've
sent.  I can't help feel I'm missing something here - should the fact
that I've signed and encrypted an email also mean that I should be able
to decrypt it (i.e, message should be encrypted with both my key and the
recipients).

-- 
Matt

Re: Changing GPG encryption for GCC copy

[Adam Sjøgren]

On Wed, 07 Nov 2012 09:00:46 +0000, Matt wrote:

> I can't help feel I'm missing something here - should the fact that
> I've signed and encrypted an email also mean that I should be able to
> decrypt it (i.e, message should be encrypted with both my key and the
> recipients).

I think this is often done by configuring gpg to encrypt for your key as
well, perhaps by setting default-recipient and hidden-encrypt-to in
~/.gnupg/gpg.conf

(It's been a while since I added those options to my configuration, that
is why I am being vague.)


  Best regards,

    Adam

-- 
 "Man skal være godt skør for at blive programmør             Adam Sjøgren
  Sidde og trykke på taster til den dag hvor man dør     asjo@koldfront.dk
  Jeg bliver ved til den dag hvor fornuften går fløjten
  Så ryger tasterne på hylden til fordel for sprøjten"

Re: Changing GPG encryption for GCC copy

[Matt Ford]

Many thanks Adam,  I used the 'encrypt-to' option in gpg.conf to
automatically ensure my own copy was encrypted.

Now I just need a lot of CPU time to recover previously sent and
encrypted mails...anyone? ;-)
-- 
Matt

Re: Changing GPG encryption for GCC copy

[Christopher Schmidt]

Matt Ford <matt@dancingfrog.co.uk> writes:
> Inspired by a recent thread I wondered if there was an elegant way of
> switching the encryption key used when saving a copy of an encrypted
> message via GCC.

Check gnus-gcc-pre-body-encode-hook and gnus-gcc-post-body-encode-hook.

I have this in my gnus-init.el:

    (ah gnus-gcc-pre-body-encode-hook
      (goto-char (message-goto-body))
      (while (re-search-forward "^<#\\(secure .*mode=\\(sign\\)?encrypt.*>\\)$"
                                nil
                                t)
        (replace-match "<|rms\\1")))

    (ah gnus-gcc-post-body-encode-hook
      (goto-char (message-goto-body))
      (while (re-search-forward "^<|rms\\(.*\\)$" nil t)
        (replace-match "<#\\1")))

        Christopher