[Bug 191495] New: Kmail + GnuPG bad passphrase

[Krisztián Kádár-Németh]

https://bugs.kde.org/show_bug.cgi?id=191495

           Summary: Kmail + GnuPG bad passphrase
           Product: kmail
           Version: 1.11.2
          Platform: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: krisztian.kad at gmail.com


Version:           1.11.2 (using 4.2.2 (KDE 4.2.2), Mandriva Linux release
2009.1 (Cooker) for i586)
Compiler:          gcc
OS:                Linux (i686) release 2.6.29.1-desktop-4mnb

When I try to sign a letter electronically with Kmail, it ALWAYS gives the
error message: "Could not sign: Bad passphrase", but never asks the passphrase
itself neither before, nor after this error message!

When I open Kleopatra and try to change the passphrase or edit my key somehow,
I get this error message (without asking any passphrase at all):

An error occurred while trying to change the passphrase.
The output from /usr/bin/gpg was: Secret key available. pub 1024D/57D8BA4F
created: 2008-03-20 expires: never usage: SCA trust: ultimate validity:
ultimate sub 2048g/E22E3D6E created: 2008-03-20 expires: never usage: E
[ultimate] (1). Kádár-Németh Krisztián The key is protected. gpg: can't query
passphrase in batch mode I cannot edit this key: bad passphrase. The key was
not changed, there is no need for a refresh. 

I tried to use the workaround (defining a gpg-agent with pinentry-qt or
pinentry-gtk2) described in this forum
(http://forum.kde.org/kmail-and-gpg-t-33189.html), but I got the following
error message:

An error occurred while trying to change the passphrase.
The output from /usr/bin/gpg was: gpg: WARNING: unsafe enclosing directory
permissions on configuration file `/home/username/.gnupg/gpg.conf' Secret key
available. pub 1024D/57D8BA4F created: 2008-03-20 expires: never usage: SCA
trust: ultimate validity: ultimate sub 2048g/E22E3D6E created: 2008-03-20
expires: never usage: E [ultimate] (1). Kádár-Németh Krisztián The key is
protected. gpg: no gpg agent is avilable in this process. gpg: can't query
passphrase in batch mode gpg: bad passphrase. Try again... gpg: can't query
passphrase in batch mode gpg: bad passphrase. Try again... gpg: can't query
passphrase in batch mode I cannot edit this key: bad passphrase. The key was
not changed, there is no need for a refresh.

The same problem is described in the Debian bug tracking system:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=523354

Installed GnuPG elements:
GnuPG 1.4.9
gpg-agent 2.0.11

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