GNU bug report logs - #21997
epa--key-widget-value-create ignores signing subkeys

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: John Wiegley <jwiegley <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: epa--key-widget-value-create ignores signing subkeys
Date: Mon, 23 Nov 2015 09:38:52 -0800

When listing secret keys using `M-x epa-list-secret-keys', one can press RET
on the inserted widget to see a list of associated subkeys. This shows that
epa.el is correctly parsing the subkeys of one's secret key.

However, the :value of that widget always chooses the first subkey, as seen
here:

    (defun epa--key-widget-value-create (widget)
      (let* ((key (widget-get widget :value))
-->          (primary-sub-key (car (epg-key-sub-key-list key)))
             (primary-user-id (car (epg-key-user-id-list key))))
        ...))

For people with multiple subkeys -- especially those who use dedicated subkeys
for signing and/or encrypting -- it would be nice to be able to select which
subkey(s) to use. The only way I can see this fitting into the current EasyPG
selection architecture would be to present each subkey as if it were a
separate, virtual secret key. In other words, where every subkey becomes a
separate widget in the list and selection buffers.

This also affects mml signing in Gnus, since it also uses the widget :value to
determine which key to use for signing.

John

Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: bug-gnu-emacs <at> gnu.org
Subject: Re: bug#21997: epa--key-widget-value-create ignores signing subkeys
Date: Thu, 12 May 2022 14:32:23 +0200

John Wiegley <jwiegley <at> gmail.com> writes:

> When listing secret keys using `M-x epa-list-secret-keys', one can press RET
> on the inserted widget to see a list of associated subkeys. This shows that
> epa.el is correctly parsing the subkeys of one's secret key.
>
> However, the :value of that widget always chooses the first subkey, as seen
> here:
>
>     (defun epa--key-widget-value-create (widget)
>       (let* ((key (widget-get widget :value))
> -->          (primary-sub-key (car (epg-key-sub-key-list key)))
>              (primary-user-id (car (epg-key-user-id-list key))))
>         ...))

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

I think I vaguely remember something like this being fixed over the last
couple of years (and the `epa--key-widget-value-create' function no
longer exists).  Do you still see this problem in recent Emacs versions?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #13 received at 21997 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: 21997 <at> debbugs.gnu.org
Subject: Re: bug#21997: epa--key-widget-value-create ignores signing subkeys
Date: Thu, 09 Jun 2022 17:02:44 +0200

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> I think I vaguely remember something like this being fixed over the last
> couple of years (and the `epa--key-widget-value-create' function no
> longer exists).  Do you still see this problem in recent Emacs versions?

More information was requested, but no response was given within a
month, so I'm closing this bug report.  If the problem still exists,
please respond to this email and we'll reopen the bug report.

-- 
(domestic pets only, the antidote for overdose, milk.)  bloggy blog:
   http://lars.ingebrigtsen.no

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