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Date:	Wed, 3 Jun 2026 11:48:03 +0300
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To:	General Cygwin discussions and problem reports <cygwin AT cygwin DOT com>,
	cygwin AT cygwin DOT com
Subject:	Re: Is there a tty-only pinentry variant available for Cygwin?
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From:	Andrey Repin via Cygwin <cygwin AT cygwin DOT com>
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Greetings, General Cygwin discussions and problem reports!

As promised, reporting back.

> On 2026-05-31 06:12, Andrey Repin via Cygwin wrote:
>> Greetings, All!
>> > I've started to work from home, and connecting to my work laptop via SSH and
>> Deskflow (Synergy).
>> It works fine except two things. One if that docker desktop is unable to pull
>> layers when inside the ssh session, and another one is that when I pull from
>> remote GIT repo, git calls to pass to retrieve stored passwords.Which in turn
>> calls to pinentry through gpg. Which is trying to display the GUI dialog in a
>> headless session.
>> Is there a ncurses or tty pinentry variant available for Cygwin?

> pinentry-w32 (obsolete) -> pinentry     GnuPG password dialog (terminal)
> pinentry-emacs                          GnuPG password dialog (emacs)
> pinentry-gnome3                         GnuPG password dialog (GNOME,MATE)
> pinentry-gtk2                           GnuPG password dialog (GTK 2)
> pinentry-qt3 (obsolete) -> pinentry-qt  GnuPG password dialog (Qt)
> pinentry-qt4 (obsolete) -> pinentry-qt        GnuPG password dialog (Qt)

> Make sure DISPLAY is unset or no binaries other than pinentry{,-w32} exist;
> curses is the fallback for the GUI binaries.

anrdaemon AT daemon2:xterm:~
$ set | grep -i DISPLAY

[1]anrdaemon AT daemon2:xterm:~
$ printf "SETTITLE Script Authenticator\nSETDESC Accessing secure resource\nSETPROMPT Enter Secret Key:\nGETPIN\nBYE\n" | pinentry -T "$(tty)" | sed -Ee '/^D/s/^D //; t; d;'
1

It pops GUI dialog, unfortunately.

In SSH session, the invocation results in a warning printed to console:

# printf "SETTITLE Script Authenticator\nSETDESC Accessing secure resource\nSETPROMPT Enter Secret Key:\nGETPIN\nBYE\n" | pinentry -T "$(tty)" |& iconv -f CP1251
OK Pleased to meet you
OK
OK
OK
SendInput failed: Отказано в доступе. (Access denied)

but the application still starts.


-- 
With best regards,
Andrey Repin
Wednesday, June 3, 2026 11:24:14

Sorry for my terrible english...

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