S/MIME signing fails on a SUSE 9.3 system

[Karsten Künne]

On Thursday 02 June 2005 06:08, Werner Koch wrote:
> On Tue, 31 May 2005 14:37:44 -0400, Karsten Künne said:
> > The gpg-agent is running and GPG_AGENT_INFO is set correctly. Does
> > anybody know what's going on here?
>
> It does not find pinentry for reasons I don't know.  The easiest
> workaround is to add a line like
>
> pinentry-program /usr/lib/pinentry/pinentry-gtk
>
> to gpg-agent.conf.  Replace gtk by qt or gtk2 according on your taste.
> Also try to run pinnetry using exactly the filename as given in that
> line.
>

The pinentry is not the issue, I configured it in gpg-agent.conf and it is 
found. I looked a bit deeper and apparently someone is talking garbage to the 
gpg-agent program. Following is from the agent's debug log:

...
  5 - 2005-06-02 15:46:43 gpgsm[7635.0x807d230] DBG: <- OPTION display=:0.0
  5 - 2005-06-02 15:46:43 gpgsm[7635.0x807d230] DBG: <- OPTION 
lc-ctype=en_US.UTF-8
  5 - 2005-06-02 15:46:43 gpgsm[7635.0x807d230] DBG: <- OPTION 
lc-messages=en_US.UTF-8

That are the options the agent supposedly gets. BUT, somebody is lying here! 
Because this is what I can see if I strace the agent:

19760 read(0, "OPTION display=:0.0", 1002) = 19
19760 read(0, "OPTION lc-ctype=en_US.UTF-8", 1002) = 27
19760 read(0, "OPTION display=en_US.UTF-8", 1002) = 26

So, the first and second option are correct but the third one is garbage. The 
debug output says it's "lc-ctype=en_US.UTF8" but what the agent gets is 
"display=en_US.UTF8" which is completely bogus. And as a result pinentry 
fails to open the display. Now the question is where does that bogus option 
come from? Is it kmail which is talking to gpg-agent directly or is gpgme 
involved? I have no idea how the chain of command works in kmail from KDE 
3.4.1. The interesting thing is that it works fine in the OpenPGP/Mime case 
(except for the fact that it apparently doesn't like german umlauts in the 
"To" header but that's another issue).


Karsten.
-- 
If you think education is expensive, try ignorance.
		-- Derek Bok, president of Harvard
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