gnome-keysign command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

gnome-keysign: command not found

or when using sudo you get the following error message

sudo: gnome-keysign: command not found

Solutions to gnome-keysign: command not found

How To Fix gnome-keysign: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu gnome-keysign is provided by gnome-keysign package.

gnome-keysign is:

GNOME Keysign is a tool for signing OpenPGP keys.

Its purpose is to ease signing other peoples’ keys. It is similar to caff, PIUS, or monkeysign. In fact, it is influenced a lot by these tools and either reimplements ideas or reuses code. Consider either of the above mentioned tools when you need a much more mature codebase.

In contrast to caff or monkeysign, this tool enables you to sign a key without contacting a key server. It downloads an authenticated copy of the key from the other party. For now, the key is authenticated by its fingerprint which is securely transferred via a QR code. Alternatively, the user may type the fingerprint manually, assuming that it has been transferred securely via the audible channel.

After having obtained an authentic copy of the key, its UIDs are signed. The signatures are then encrypted and sent via email. In contrast to monkeysign, xdg-email is used to pop up a pre-filled email composer windows of the mail client the user has configured to use. This greatly reduces complexity as no SMTP configuration needs to be obtained and gives the user a well known interface.

To fix this problem, we can install more using the command below.

sudo apt-get -y install gnome-keysign

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install gnome-keysign.

sudo apt -y install gnome-keysign

Or if you have aptitude installed you can use the following command.

sudo aptitude install gnome-keysign

Summary

In this tutorial we learn how to fix gnome-keysign command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.