cryptsetup software package provides disk encryption support - startup scripts, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install cryptsetup
cryptsetup is installed in your system.
Make ensure the cryptsetup package were installed using the commands given below,
$ sudo dpkg-query -l | grep cryptsetup *
You will get with cryptsetup package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Administration Utilities |
| Package | cryptsetup |
| Version | 2:1.6.1-1ubuntu1 |
| Description | disk encryption support - startup scripts |
| Sub Section | Admin |