leap-archive-keyring software package provides OpenPGP archive key for the leap.se software repositories, 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 leap-archive-keyring
leap-archive-keyring is installed in your system.
Make ensure the leap-archive-keyring package were installed using the commands given below,
$ sudo dpkg-query -l | grep leap-archive-keyring *
You will get with leap-archive-keyring package name, version, architecture and description in a table
| Distro | Ubuntu 17 04 zesty zapus |
| Section | Miscellaneous |
| Package | leap-archive-keyring |
| Version | 2016.03.08 |
| Description | OpenPGP archive key for the leap.se software repositories |
| Sub Section | misc |