Install libsignal-protocol-c2 by entering the following commands in the terminal:
sudo apt update sudo apt install libsignal-protocol-c2
Description:
ratcheting forward secrecy protocol for synchronous and asynchronous messaging
This is a ratcheting forward secrecy protocol that works in synchronous and asynchronous messaging environments.
Homepage: https://github.com/WhisperSystems/libsignal-protocol-c
Version: 2.3.1+git20171007-3
Section: universe/libs