How To Install signify-openbsd on Ubuntu 18.04
Introduction
In this tutorial we learn how to install signify-openbsd on Ubuntu 18.04.
What is signify-openbsd
signify-openbsd is:
Similar to GNU Privacy Guard (GPG), signify is the tool which OpenBSD uses to cryptographically sign its releases, so that you can be sure that you are actually getting a release made by OpenBSD, as opposed to a malicious forgery designed to look the same.
Signify’s usage is not limited to OpenBSD’s releases, however - it can be used to sign anything.
So that it will work on Linux, the version of signify provided in this package is not exactly the same as the version provided in OpenBSD’s CVS tree.
Please note that OpenBSD’s public keys are not included with this package; you will have to find your own version in order to verify their releases.
There are three methods to install signify-openbsd 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 signify-openbsd Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install signify-openbsd using apt-get by running the following command:
sudo apt-get -y install signify-openbsd
Install signify-openbsd Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install signify-openbsd using apt by running the following command:
sudo apt -y install signify-openbsd
Install signify-openbsd 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 signify-openbsd using aptitude by running the following command:
sudo aptitude -y install signify-openbsd
How To Uninstall signify-openbsd on Ubuntu 18.04
To uninstall only the signify-openbsd package we can use the following command:
sudo apt-get remove signify-openbsd
Uninstall signify-openbsd And Its Dependencies
To uninstall signify-openbsd and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove signify-openbsd
Remove signify-openbsd Configurations and Data
To remove signify-openbsd configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge signify-openbsd
Remove signify-openbsd configuration, data, and all of its dependencies
We can use the following command to remove signify-openbsd configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge signify-openbsd
References
Summary
In this tutorial we learn how to install signify-openbsd package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
