Install gnome-keysign by entering the following commands in the terminal:
sudo apt update sudo apt install gnome-keysign
Description:
easy signing of OpenPGP keys over the local network
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.
Homepage: https://github.com/gnome-keysign/gnome-keysign
Version: 0.9-1
Section: universe/utils