bug#2412: spurious "Sign failed" errors

[Chong Yidong <cyd@stupidchicken.com>]

Hi Daiki,

This may be a bug in epg, could you take a look?  This is Bug#2412 in
the Emacs bug tracker.  Thanks.


Sven Joachim <svenjoac@gmx.de> wrote:

> Gnus v5.13
> GNU Emacs 23.0.60.1 (i486-pc-linux-gnu, GTK+ Version 2.12.11)
>  of 2008-11-30 on turtle, modified by Debian
> 200 news.motzarella.org InterNetNews NNRP server INN 2.4.5 ready
> (posting ok).

> I'm experiencing painful, but not always reproducible problems with
> sending or previewing signed mails.  Often I get an error "Sign failed"
> and a backtrace like this:

> ,----
> | Debugger entered--Lisp error: (error "Sign failed")
> |   signal(error ("Sign failed"))
> |   byte-code("<snipped>" [mml2015-epg-secret-key-id-list error password-cache-remove signal] 4)
> |   mml2015-epg-sign((part (sign . "pgpmime") (tag-location . 186) (contents . "Nur ein Test.\n")))
> |   mml2015-sign((part (sign . "pgpmime") (tag-location . 186) (contents . "Nur ein Test.\n")))
> |   mml-pgpmime-sign-buffer((part (sign . "pgpmime") (tag-location . 186) (contents . "Nur ein Test.\n")))
> |   mml-generate-mime-1((part (sign . "pgpmime") (tag-location . 186) (contents . "Nur ein Test.\n")))
> |   mml-generate-mime()
> |   message-encode-message-body()
> |   mml-to-mime()
> |   mml-preview(nil)
> |   call-interactively(mml-preview nil nil)
> `----
>
> If this happens during sending, the message actually is signed and sent,
> but no copy lands in my archive folder. :-(
>
> I'm using gpg-agent with pinentry-gtk2 for the passphrase.