Binary package “i2p” in ubuntu bionic

Invisible Internet Project (I2P) - anonymous network

 I2P is an anonymizing network, offering a simple layer that identity-sensitive
 applications can use to securely communicate. All data is wrapped with several
 layers of encryption, and the network is both distributed and dynamic, with no
 trusted parties.
 .
 This package depends on the router, jbigi, the java service wrapper, and
 includes support to run I2P as a daemon.