gnome-keyring problem section in the wiki (Re: gnupg privicy assistant - card manager.)

[Bernhard Reiter]

On Monday 01 September 2014 at 08:37:45, Werner Koch wrote:
> On Sun, 31 Aug 2014 16:00, paul.lewis at quadensemble.com said:
> > I'd like to use the card manager function, but whenever I invoke it the
> > application returns the error "Error accessing the card", and the
> > status bar reports "Checking for card .. "
>
> I have actually thank you for raising this issue:
> > gnome-keyring-daemon[5531]: unrecognized command: SCD
>
> The problem is that the gnome-keyring-dameon hijacks the inter process
> communication (IPC) between gpg and gpg-agent.  It implements a very
> limited set of commands of gpg-agent but nothing more.  Recent versions
> of GnuPG detect this and show a warning message or pop-up to tell you
> just this.

Because I ran into the issue analysing why an gpgsm installation on Ubuntu did 
not work, I think this warrants a section in the wiki:
http://wiki.gnupg.org/PlatformNotes

If would be nice if you (all) could help me and GnuPG and look up the problem 
reports within Ubuntu or Gnome and linke them from there.

> Depending on the version of gnome-keyring-daemon, it is possible to
> disable the gpg-agent hijacking component.  Unfortunately it is hard to
> convince the maintainer to disable this mis-features.
>
> > Otherwise if I run gpg --card-status with a card in the USB card reader
> > I get the following:
>
> You are using gpg 1.4.x which can directly talk to the card.  However,
> latest card features are not supported by 1.4 but only by GnuPG 2.x.
>
> See the mail thread starting with this mail for details:
>
>  http://lists.gnupg.org/pipermail/gnupg-devel/2014-August/028689.html
>
> > I presume, the system is misconfigured is some way. Any one got any
> > suggestions?
>
> You may want to bring this to the attention of your Linux distribution.
> The solution could be easy: The gpg-agent component needs to be disabled
> when build gnome-keyring-daemon:
>
>   ./configure --disable-gpg-agent
>
>
> Shalom-Salam,
>
>    Werner

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