carlolars / gnupg2-msys2 Goto Github PK

Hello,
I am trying to suppress passphrase prompt completely as we are looking for a fully automated unattended decryption program. I am using Task Scheduler to run the below command
echo mypassphrase|gpg --logger-file "D:\FileShare\PGPScripts\SFTP\gpglog.log" --pinentry-mode loopback --batch --yes --passphrase-fd 0 --decrypt-files "D:\FileShare\WIP*.pgp"

After the system goes idle the decryption starts failing with the error "Bad Passphrase/ Secret key available". After running a manual decryption, the job continues to run successfully.

What should I do to get rid of this problem?

Are the below options going to be helpful in my case?

add pinentry-mode loopback to %APPDATA%\gnupg\gpg.conf;
then run gpgconf --kill gpg-agent ;

Hello! Your post is working like charm, only one common issue that happens to all platforms: pinentry GUI will pop up when any private key authentication is needed.

PATH is automatically configured by GPG4Win, appending C:\Program Files (x86)\Gpg4win\..\GnuPG\bin. As many other pages, like this one suggest pinentry-(curses|tty) which both packages don't exist in mingw pacman package repo.

I found this page exactly what I'm trying to solve now and I tried what he did too, this post has no answer yet. I tried to create and modify %APPDATA%\gnupg\gpg-agent.conf and added pinentry-program "c:/Program Files (x86)/GnuPG/bin/pinentry-basic.exe" (note the paired double quotes). On the contrary to what was mentioned on the page, I could call pinentry-basic, though it's also a pop-up:

... which is actually different from what GPG4win has to offer:

Solution found in the end:
allow-loopback-pinentryis the default option for gpg-agent, simply add pinentry-mode loopback to %APPDATA%\gnupg\gpg.conf then run gpgconf --kill gpg-agent ; gpg-connect-agent /bye in PowerShell will do the trick.

I'm keeping the exploration process here as a reference, thanks again!