[Gpg4win-users-en] gpg4win 3.0.0 - post-install errors, Qt5, Vista-32bit

[Jochen Saalfeld]

Hi Andrew,

First of all: Thank you for your detailed report and update! We noticed this 
bug[1] and it seems to occur on Machines running Vista and XP. In the next 
couple of days we will discuss how we will go on with this issue.

Thanks again for your detailed descriptions!
Jochen

[1] - https://dev.gnupg.org/T3425

On Wednesday, September 27, 2017 3:01:00 AM CEST Andrew Skretvedt wrote:
> Update:
> 
> TL;DR - Edit gpg-agent.conf to use an alternate pinentry program if it's
> crashing due to the Qt5 issue I hit as described in my original post.
> This doesn't fix Kleopatra (or thus make shell extensions work), but
> does make GnuPG fully functional (e.g. for command prompt use or use via
> Enigmail, etc.).
> 
> ----------
> 
> Others who find themselves in the same situation as I in my original
> post can make their install of 3.0.0 more functional by editing their
> gpg-agent.conf to change which of the included pinentry executables the
> distribution is using.
> 
> This does /not/ address problems using Kleopatra, it remains broken.
> But, I hardly use it myself, preferring to do most of my interaction
> with GnuPG from a command prompt. Enigmail is unaffected. However, under
> these ways of use, you'll still have occasions where you need to enter
> passphrases set on keys, which makes use of a separate executable,
> "pinentry.exe".
> 
> The default in 3.0.0 is one which uses Qt5, a library that seems broken
> at least for Vista-32bit systems and appears responsible for Kleopatra
> not working. When you hit an operation which requires pinentry.exe, you
> get an error and the operation fails.
> 
> But, a little curious inspection showed that the maintainers have
> helpfully included other variants of pinentry that use other libraries
> instead. To get GnuPG to use one of the functional variants, you can
> supply a configuration option.
> 
> My installation's gpg-agent.conf was located at:
> 
> %USERPROFILE%\AppData\Roaming\gnupg\gpg-agent.conf
> 
> yours may be slightly different place, depending on Windows version.
> Inside, look for an option "pinentry-program", or if it doesn't exist,
> add a line at the bottom.
> 
> pinentry-program "C:\Program Files\gpg4win\bin\pinentry-w32.exe"
> 
> Adjust the exact path to match your gpg4win installation. Visiting the
> directory, you'll see that there are several pinentry variants to select
> from. Experiment to find one that suits you best. If gpg-agent was
> already running in the background due to previous activity, you will
> have to force it to reload to get the new configuration. Do that from
> 
> the command prompt with:
>  >gpgconf --reload gpg-agent
> 
> You can test your pinentry is working by asking gpg to do a symmetric
> 
> encryption:
>  >gpg -c
> 
> Which will launch pinentry to obtain a passphrase to use. Proceeding
> further is not important, all you want to know is that pinentry launched
> successfully, just click cancel.
> 
> Pinentry will inform you on its dialog of the key whose passphrase is
> being requested, when not doing symmetric encryption. I found on my
> system, the combination of dialog box size and font cause this prompting
> information to run underneath the text entry box and be obscured when
> using pinentry-w32.exe. This did not happen when I tried the GTK2
> variant. So, experiment if you see any issues.
> 
> This has fixed things well enough for me that I will just keep 3.0.0
> installed while waiting to see if the maintainers can confirm my
> experience, Kleopatra is almost never needed for the way I usually use
> GnuPG. Users wanting that GUI experience however will be following this
> thread's development.
> 
> Hope this helps!
> 
> Any list member who knows, please confirm the Qt5 issue from the OP, thanks.
> 
> -Andrew


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