gnunet-client binary package in Ubuntu Trusty amd64

 GNUnet is a peer-to-peer framework which focuses on providing security. All
 link-to-link messages in the network are confidential and authenticated. The
 framework provides a transport abstraction layer and can currently encapsulate
 the peer-to-peer traffic in UDP, TCP, or SMTP messages.
 .
 This package contains the command line client applications, such as
 gnunet-search and gnunet-download. In order use GNUnet, you also need
 gnunet-server either on your server or on your local machine.

Source package