* [Freenet](https://mirror4.freenetproject.org).
* [Gnunet](http://packages.debian.org/stable/gnunet).
* [Cryptomail](cryptomail).
+ * [One-time secret](https://github.com/onetimesecret/onetimesecret).
* Acesso
* [iodine](https://wiki.koumbit.net/DnsTunnel) ([pacote](http://packages.debian.org/stable/iodine) / [puppet-iodine](https://labs.riseup.net/code/projects/shared-iodine)).
* [icmptx](http://packages.debian.org/stable/icmptx).