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\LARGE{\textbf{GNUnet e.V. --- Taler Systems SA \\ Agreement\\ on Licensing and Collaborative Development of the GNUnet code}}\\
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\normalsize
\section*{Preamble}
Both organizations, GNUnet e.V. and Taler Systems SA, have understood
the importance of privacy, freedom of information and free speech in
the digital age, specifically following the Snowden revelations ongoing since
June 2013. They both are collaboratively working on the Free Software
applications, frameworks or libraries originating from the GNUnet Project
under the premises of the GNU GPL license.

With this agreement they want to ensure that this collaborative
development does not create any obstacles for the respective
project's goals with respect to licensing and distribution.  Given
the interdependencies between the GNUnet code
and the Taler code, the objective is to arrive at a well-engineered
system where functionality is moved to the component where it makes
sense from an engineering perspective, irrespective of the identity
of the contributor.

Additionally, our ogal is that both Taler Systems SA and GNUnet e.V.  are
free to engage in all activities necessary to help Taler and GNUnet
technologies to become spread and widely used Free Software.

\section*{Involved parties}
This agreement is being made between
\begin{itemize}
\item GNUnet e.V., a German association of GNUnet developers registered in Munich and seated in Garching, which holds all rights on the code contributed to the GNUnet project (``GNUnet code'') and
\item Taler Systems SA, seated 7 rue de Mondorf, L-5421 Erpeldange, Luxemburgh.
\end{itemize}

\section*{Shareholder clause}

GNUnet e.V. obtains voting shares in the Taler Systems SA company as
per the shareholder agreement attached to this contract.

\section*{Mutual Ownership Transfer clause}

GNUnet e.V. agrees
\begin{itemize}
\item that contributions by its GNUnet contributors to the Taler code will be owned by Taler Systems SA.
\end{itemize}
Taler Systems SA agrees
\begin{itemize}
\item that contributions it makes to the GNUnet code will be owned by GNUnet e.V.
\end{itemize}

\section*{Multi-Licensing clause}

GNUnet e.V. agrees that Taler Systems SA is allowed to distribute those
parts of the GNUnet code that Taler depends upon (currently
libgnunetutil, libgnunetpq, libgnunetcurl and libgnunetjson) under
other licenses than the GNU GPLv3 license (or any later version), as
long as all of the following conditions are met:

\begin{itemize}
\item All copies of GNUnet code and any changes made to it are always made publicly available under the GPLv3 license (or any later version).
\item Taler Systems SA has the right to relicense the GNUnet code and any changes made to it under other licenses than the GNU GPLv3 (or any later version).
\item Any license other than the GNU GPLv3 license (or any later version) used to relicense GNUnet code by Taler Systems SA must have the nature that no modifications to the code are allowed by the licensee. Any licensee shall not make or cause to be made, nor permit, modifications, further developments or create derivative works of GNUnet code.
\item Finally, licensees of Taler Systems SA are only allowed to make copies of the GNUnet code they got licensed from Taler Systems SA. Any sub-licensee shall not make or cause to be made, nor permit, modification, further developments or create derivate works of GNUnet code.
\end{itemize}

\section*{``RMS wants you to advocate against evil'' clause}

Taler Systems SA makes sure all software it lets distribute and copy under
other licenses than the GNU GPLv3 license (or any later version)
contains a reference to its development ressources, stating clearly
that the same software is also available as Free Software under the
GNU GPLv3 license (or any later version); the same ressource includes
detailed build instructions and directions on how to run the binaries
created for each platform concerned.

\section*{``RMS is as paranoid as you are'' clause}

Taler Systems SA will make sure that non-GPLv3 distributions will use
protect the user's security and privacy as much as technically
possible.  In particular, this includes enabling users to verify that
binaries match the GPLv3 source code (i.e. by using determinstic
builds).

\section*{No holding in Abeyance clause}

GNUnet e.V. expresses its interest in continuous development of Taler
and its expedited deployment. To assure this, Taler Systems SA agrees to assign
GNUnet e.V. shared ownership of Taler Systems SA's Taler code base should the
development on Taler cases for more than 12 months of time. Development
of Taler is defined to have ceased if the annual contributions from Taler
Inc to the Taler public code base reflect an effort of less than
that of 12 person months in the first 3 years of launching Taler and less than
that of 2 person months for 5 years thereafter.

\section*{Joint press release}

Both parties, GNUnet e.V. and Taler Systems SA agree in creating a joint
press release to inform the public about this agreement, which itself
may be publicly disclosed by either party.

\section*{Applicable law}
This agreement is subject to Swiss law.
\section*{Signatures}
\begin{tabularx}{\textwidth}{ XXXX }
GNUnet e.V. & & & Taler Systems SA \\
& & &\\
& & &\\
\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}&&&
\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\\
& & &\\
& & &\\
\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}&&&
\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\dots{}\\
& & &\\
Date:~~\dots{}\dots{}\dots{}\dots{} & & &Date:~~\dots{}\dots{}\dots{}\dots{}\\
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