Index - GnuPG wiki

Notable Events

2021-12-21 Gpg4win 4 released, a major update. It includes GnuPG 2.3 for the first time and this means ECC is the default for new key-pairs.
2021-04-08: GnuPG 2.3.0 released, a major release with new crypto algorithm defaults and faster pubkey storage.
2020-01-07: GnuPG.com starts offering paid support for Gpg4win that is approved for EU RESTRICTED communication. (GnuPG.com is a brand of g10code the main developer of GnuPG and Gpg4win.)
2019-04-30: About detecting spoofed email signatures a writeup by GnuPG/Gpg4win

What is GnuPG/Gpg4win?

GnuPG is a software for the encryption of emails and files that runs on GNU/Linux, Windows and other operating system. It is also included in Gpg4win which was developed especially for Windows. Gpg4win is a bundle of software and beside GnuPG it contains for example an addon for Outlook and Kleopatra which allows users to manage their keys and do other tasks in a graphical user interface.

You can find more information about Gpg4win (releases, previous contracts etc.) here

Get help with GnuPG/Gpg4win

Documentation

Here you can find an overview of documentations that can help you to accomplish your task or find a solution for your problems.

Troubleshooting

Here you find different problems and possible solutions to solve them (mainly on Windows for Gpg4win)

Your help in this wiki is highly appreciated!

This forum is a community project and many different projects are working on it. You are invited to join us! If you find misspellings or outdated information feel free to fix them. For more ideas to contribute you can visit this page.

If you want to read more about the background of this wiki this is the right place.

GnuPG for Users

Wie funktioniert E-Mail-Verschlüsselung mit PGP? Video, 3:35min (German video about how email encryption with OpenPGP works)
Hints for EMailClients/Thunderbird users.
LargeKeys: How many bits are enough?
WebOfTrust: Understanding the web of trust
GnomeKeyring: What to do when Gnome Keyring Hijacks your GPG Agent
PlatformNotes - what to be aware of when using or administrating GnuPG on different platforms.
X.509 hints (needed for S/MIME and trusted root certs)
SmartCard hints
Wishlist Where to submit feature requests
Applications using GnuPG
Tools that may help running or administrating GnuPG or Gpg4win
EMailClients/Screenshots
LDAPKeyserver: How to configure OpenLDAP as a keyserver.
Hints for use with NFS
How to use local secrets on a remote machine

GnuPG for Developers

Web Key Directory and Service, which makes exchanging crypto mails much easier.
Suggestions for common UX practices
How to use GnuPG from your application (GnuPG's API)
Implemented OpenPGP specification.
BuildingFromGIT
Building GnuPG 2.1: GnuPG 2.1 is the latest GnuPG version but as with all 2.x versions it has several dependencies, which make building it a bit more difficult. Here are some notes.
API checker: Upstream-Tracker.org checks ABI/API changes for some libraries like gpgme, libgpg-error, libgcrypt.

Note that the tools can't necessary decide whether something is an ABI or API change. The output should be used as a hint to look for whether there might be a problem. We are not aware of any broken API or ABI contracts for the listed libraries.

Other OpenPGP implementations/initiatives

Planning

Tasks
OpenPGPEmailSummits
OpenPGP.conf, last conf was 8+9th of Sept, 2016.