gnome-keyring software package provides GNOME keyring services (daemon and tools), you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gnome-keyring
gnome-keyring is installed in your system.
Make ensure the gnome-keyring package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnome-keyring *
You will get with gnome-keyring package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | GNOME |
| Package | gnome-keyring |
| Version | 3.18.3-0ubuntu2 |
| Description | GNOME keyring services (daemon and tools) |
| Sub Section | GNOME |