the new comments on how to disable the gnome-keyring agents are
orthogonal to the bug described there, ideally the GPG agent would be
good enough that it doesn't need to be disabled, somebody should still
report the bug to GNOME if we want to see it worked.

note that we hide system components from the startup applications list
because they confuse most users, those technical enough to change their
gpg agent should be able to deal with a command line ;-)

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https://bugs.launchpad.net/bugs/884856

Title:
  gnome-keyring integration breaks some GPG functions

Status in “gnome-keyring” package in Ubuntu:
  Confirmed

Bug description:
  In recent Ubuntu releases (not sure how far back, but at least
  Oneiric) gnome-keyring offers gpg-agent integration and is enabled by
  default. The gpg-agent protocol implementation of gnome-keyring is
  very incomplete and hence breaks at least the smartcard functions of
  gpg and most functions of gpgsm.

  Steps to reproduce (smartcard):
  1. Acquire a smartcard reader, an OpenPGP smartcard and install pcsc-lite
  2. Start a normal new Ubuntu desktop session
  3. strace gpg --card-status

  Actual results:
  ...
  socket(PF_FILE, SOCK_STREAM, 0)         = 3
  connect(3, {sa_family=AF_FILE, path="/tmp/keyring-p6oNWL/gpg"}, 25) = 0
  ...
  write(3, "SCD SERIALNO openpgp", 20)    = 20
  write(3, "\n", 1)                       = 1
  read(3, "ERR 103 unknown command\n", 1002) = 24
  ...

  The printout on stdout is 
  selecting openpgp failed: unknown command
  OpenPGP card not available: general error

  Expected results: The agent should know the SCD command and act
  accordingly.

  
  Steps to reproduce(gpgsm):
  1. Migrate from an old installation that includes X.509 certificates and 
private keys in gpgsm.
  2. strace gpgsm -K

  Actual results:
  ...
  socket(PF_FILE, SOCK_STREAM, 0)         = 4
  connect(4, {sa_family=AF_FILE, path="/tmp/keyring-p6oNWL/gpg"}, 25) = 0
  ...
  write(4, "HAVEKEY 62B64B58FF1BD7E0B48FE51A"..., 48) = 48
  write(4, "\n", 1)                       = 1
  read(4, "ERR 103 unknown command\n", 1002) = 24
  ...

  Expected results: The agent should know the HAVEKEY command and act
  accordingly.

  
  Due to the way the gnome-keyring is activated in recent releases no easy 
workaround is possible. Removing the GPG_AGENT_INFO environment variable makes 
the individual examples work (they will just start their own agent if 
necessary), but that's not possible (and certainly not configurable) on a 
system level. gnome-keyring-daemon allows in principle to deactivate the faulty 
gpg module (there is a command line option --components that accepts a list of 
any combination of pkcs11,secrets,ssh,gpg).

  But currently the gnome-keyring-daemon is started through the
  pam_gnome_keyring.so PAM module which uses a hard-coded command line
  ("--daemonize --login").

  
  Steps to resolve this problem: At least a) disable the gpg gnome-keyring 
module by default in the PAM module, and/or b) make the command line options 
that the module uses user configurable. Or c) extend gnome-keyring with all the 
missing functionality (and play a constant game of catch-up), or d) leave 
gpg-agent operations to the gpg-agent and try to solve whatever problem the 
gnome-keyring gpg-agent emulation was meant to solve in another manner.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: gnome-keyring 3.2.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  Date: Mon Oct 31 05:41:24 2011
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, no user)
   LANG=de_DE.utf8
   SHELL=/bin/bash
  SourcePackage: gnome-keyring
  UpgradeStatus: Upgraded to oneiric on 2011-10-14 (17 days ago)

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