How To Install libjs-olm on Ubuntu 22.04
Introduction
In this tutorial we learn how to install libjs-olm
on Ubuntu 22.04.
What is libjs-olm
libjs-olm is:
Olm is an implementation of the Double Ratchet cryptographic ratchet described by https://whispersystems.org/docs/specifications/doubleratchet/, written in C and C++11 and exposed as a C API.
This library also includes an implementation of the Megolm cryptographic ratchet which is intended for encrypted messaging applications where there may be a large number of recipients of each message, thus precluding the use of peer-to-peer encryption systems such as Olm.
Megolm is the end-to-end encryption system for the Matrix communications protocol.
This package contains the JavaScript libolm compiled as JavaScript.
There are three methods to install libjs-olm
on Ubuntu 22.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install libjs-olm Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install libjs-olm
using apt-get
by running the following command:
sudo apt-get -y install libjs-olm
Install libjs-olm Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install libjs-olm
using apt
by running the following command:
sudo apt -y install libjs-olm
Install libjs-olm Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude
using the following command.
sudo aptitude update
After updating apt database, We can install libjs-olm
using aptitude
by running the following command:
sudo aptitude -y install libjs-olm
How To Uninstall libjs-olm on Ubuntu 22.04
To uninstall only the libjs-olm
package we can use the following command:
sudo apt-get remove libjs-olm
Uninstall libjs-olm And Its Dependencies
To uninstall libjs-olm
and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove libjs-olm
Remove libjs-olm Configurations and Data
To remove libjs-olm
configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge libjs-olm
Remove libjs-olm configuration, data, and all of its dependencies
We can use the following command to remove libjs-olm
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libjs-olm
References
Summary
In this tutorial we learn how to install libjs-olm
package on Ubuntu 22.04 using different package management tools: apt
, apt-get
and aptitude
.