kgpg software package provides graphical front end for GNU Privacy Guard, you can install in your Ubuntu 17.04 (Zesty Zapus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install kgpg
kgpg is installed in your system.
Make ensure the kgpg package were installed using the commands given below,
$ sudo dpkg-query -l | grep kgpg *
You will get with kgpg package name, version, architecture and description in a table
| Distro | Ubuntu 17 04 zesty zapus |
| Section | KDE |
| Package | kgpg |
| Version | 4:16.04.3-0ubuntu1 |
| Description | graphical front end for GNU Privacy Guard |
| Sub Section | KDE |