Install Signal Desktop on Linux Mint and Ubuntu
Signal is a free messenger with encryption of the non-profit Signal Foundation. It is best known for its data economy and end-to-end encryption, and is often recommended by security experts and privacy organizations. The “zero-knowledge principle” serves as data protection, in which the provider has no access to user data.
The Signal app is available for Android and iOS, a desktop version for Windows, macOS and Linux. The desktop version requires installation on a smartphone. The free signal protocol is used for encrypting messages, which security experts consider to be secure.
The Signal desktop package are available for Linux Mint and Ubuntu. The installation need the signal.org repository, the following four commands are performed in a terminal shell.
sudo wget -O- https://updates.signal.org/desktop/apt/keys.asc | apt-key add -
sudo echo "deb [arch=amd64]https://updates.signal.org/desktop/apt xenial main" | tee -a /etc/apt/sources.list.d/signal-xenial.list
sudo apt update
sudo apt install -y signal-desktop
The Signal app can now be found via Start on Internet, or by entering Signal into the Cinnamon search field.