Daiki Ueno <ueno@gnu.org> writes:

> Łukasz Stelmach <stlman@poczta.fm> writes:
>
>> It looks like there is a sort of bug in mml2015-epg-encrypt at line
>> 1117.
>>
>> http://git.gnus.org/cgit/gnus.git/tree/lisp/mml2015.el?id=6e422932976e94d6dbb7ad602c5be3eb481fe46c#n1117)
>>
>> The whole form that begins at line 1113 converts list of recipients
>> provided as email addresses, key IDs or anything gpg can digest into epg
>> "objects". Unfortunately there is one corner case that makes this code
>> fail. That is when a key is valid but a uid on it has been revoked.
>
> Thanks for the report.
>
>> epg.el is a part of emacs, mml2015.el belongs to gnus. IMHO it is
>> mml2015-epg-find-usable-key that should be fixed. The function should
>> accept and additional (optional?) parameter with a recipient uid as
>> passed to epg-list-keys and reject keys with all uids matching the
>> recipient parameter revoked.
>
> Sounds reasonable.  I plan to apply the attached patch.

The patch looks reasonable (-; I'll check tooday in the evening
(CET). Before applying please follow the discussion (if it appears) on
the gpg-devel mailing list:

http://permalink.gmane.org/gmane.comp.encryption.gpg.devel/17572 

Of course if a fix appears in gpg 2.0.20 your code is still relevant for
thos who use older versions.

-- 
Miłego dnia,
Łukasz Stelmach