* If not exists, but at another location, please create a symbolic link under directory `/usr/local/lib` or `/opt/local/lib`.
* Linux: after [installation](http://doc.libsodium.org/installation/index.html), make sure the file 'libsodium.so' exists on: `/usr/local/lib` or `/opt/local/lib`.
- Windows : Aucune instalation nécessaire (fichier `sodium.dll` déjà présent dans `duniter4j-core-shared/lib`);
If not, create a symbolic link.
* Windows: copy the file 'sodium.dll' into directory 'duniter4j-core/lib/'
* Windows: copy the file 'sodium.dll' into directory 'duniter4j-core/lib/'
- Windows : [download here](http://maven.apache.org/download.cgi)(version 3.x) then install using [this instructions](http://maven.apache.org/install.html).