contributing to regpg

If you have any comments, suggestions, or bug reports, please email them to me at or, or submit them via GitHub.

If you would like to contribute code, tests, or documentation, please state explicitly whether your work is CC0 or GPLv3, and include a Signed-off-by: line to certify that you wrote it or otherwise have the right to pass it on as a open-source patch, according to the Developer's Certificate of Origin 1.1

building regpg

The source archives (see "Downloads" in the README) are distributed ready-built, so you should only need to build regpg if you are installing from git (see "Repositories" in the README).

The following make targets are supported:

release process

    ./util/ 1.2

The util/ makes a signed tag for the new version, builds and sign release tarballs in ./dist/, uploads the release, and marks with an unknown patch level post release.

When you make upload the current patchlevel script is published at

You can make release any time to get patchlevel tarballs in ./dust/

overall licence - GPLv3

The overall licence for regpg is the GPLv3, same as GnuPG and Ansible. There is a copy of the GPL distributed with regpg in the file COPYING.

Written by Tony Finch
at Cambridge University Information Services.

regpg is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

regpg is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with regpg. If not, see

The GPL applies to:

licence - CC0 pieces

Several regpg support files are public domain (CC0)

These CC0 files are likely to be incorporated into other projects, so they are released under the least restrictive terms possible.

licence - talks

The talks directory in the regpg git repository is not included in the regpg release tarballs.

Most of the images are released under various Creative Commons licences. Each image should have a link to its source.

The non-image files (TeX source and Makefile) are public domain (CC0).

Part of regpg
Written by Tony Finch
at Cambridge University Information Services.