How To Install libotr5-bin on Debian 9

In this tutorial we learn how to install libotr5-bin on Debian 9. libotr5-bin is toolkit for Off-the-Record Messaging library

Introduction

In this tutorial we learn how to install libotr5-bin on Debian 9.

What is libotr5-bin

libotr5-bin is:

OTR allows you to have private conversations over IM by providing:

  • Encryption
    • No one else can read your instant messages.
  • Authentication
    • You are assured the correspondent is who you think it is.
  • Deniability
    • The messages you send do not have digital signatures that are checkable by a third party. Anyone can forge messages after a conversation to make them look like they came from you. However, during a conversation, your correspondent is assured the messages they see are authentic and unmodified.
  • Perfect forward secrecy
    • If you lose control of your private keys, no previous conversation is compromised.

This package contains the program files for the OTR library.

There are three methods to install libotr5-bin on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install libotr5-bin Using apt-get

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

sudo apt-get update

After updating apt database, We can install libotr5-bin using apt-get by running the following command:

sudo apt-get -y install libotr5-bin

Install libotr5-bin Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libotr5-bin using apt by running the following command:

sudo apt -y install libotr5-bin

Install libotr5-bin 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 Debian. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install libotr5-bin using aptitude by running the following command:

sudo aptitude -y install libotr5-bin

How To Uninstall libotr5-bin on Debian 9

To uninstall only the libotr5-bin package we can use the following command:

sudo apt-get remove libotr5-bin

Uninstall libotr5-bin And Its Dependencies

To uninstall libotr5-bin and its dependencies that are no longer needed by Debian 9, we can use the command below:

sudo apt-get -y autoremove libotr5-bin

Remove libotr5-bin Configurations and Data

To remove libotr5-bin configuration and data from Debian 9 we can use the following command:

sudo apt-get -y purge libotr5-bin

Remove libotr5-bin configuration, data, and all of its dependencies

We can use the following command to remove libotr5-bin configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libotr5-bin

Dependencies

libotr5-bin have the following dependencies:

References

Summary

In this tutorial we learn how to install libotr5-bin package on Debian 9 using different package management tools: apt, apt-get and aptitude.