How To Install libgfshare2 on Ubuntu 18.04

In this tutorial we learn how to install libgfshare2 on Ubuntu 18.04. libgfshare2 is library for multi-way secret-sharing

Introduction

In this tutorial we learn how to install libgfshare2 on Ubuntu 18.04.

What is libgfshare2

libgfshare2 is:

This library implements Shamir’s method for secret sharing, which can be used to split a secret (like a GPG secret key) into multiple parts, so that at least some number of those parts are needed to recover the original file, but any smaller combination of parts is useless to an attacker.

For instance, you might split a GPG key using a 3-of-5 share and put one share on each of three computers, and two shares on a USB memory stick; then you can use the GPG key on any of those three computers using the memory stick, but if the memory stick is lost, you can recover the key by bringing the three computers together.

There are three methods to install libgfshare2 on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install libgfshare2 Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install libgfshare2 using apt-get by running the following command:

sudo apt-get -y install libgfshare2

Install libgfshare2 Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libgfshare2 using apt by running the following command:

sudo apt -y install libgfshare2

Install libgfshare2 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 libgfshare2 using aptitude by running the following command:

sudo aptitude -y install libgfshare2

How To Uninstall libgfshare2 on Ubuntu 18.04

To uninstall only the libgfshare2 package we can use the following command:

sudo apt-get remove libgfshare2

Uninstall libgfshare2 And Its Dependencies

To uninstall libgfshare2 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove libgfshare2

Remove libgfshare2 Configurations and Data

To remove libgfshare2 configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge libgfshare2

Remove libgfshare2 configuration, data, and all of its dependencies

We can use the following command to remove libgfshare2 configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libgfshare2

References

Summary

In this tutorial we learn how to install libgfshare2 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.