cryptsetup-udeb software package provides disk encryption support - commandline tools (udeb), 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 cryptsetup-udeb
cryptsetup-udeb is installed in your system.
Make ensure the cryptsetup-udeb package were installed using the commands given below,
$ sudo dpkg-query -l | grep cryptsetup-udeb *
You will get with cryptsetup-udeb package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | debian-installer udeb packages |
| Package | cryptsetup-udeb |
| Version | 2:1.6.6-5ubuntu2 |
| Description | disk encryption support - commandline tools (udeb) |
| Sub Section | Debian-installer |