$ sudo apt-get update
$ sudo apt-get install libcrypt-util-perl 

libcrypt-util-perl is installed in your system.

Make ensure the libcrypt-util-perl package were installed using the commands given below,

$ sudo dpkg-query -l | grep libcrypt-util-perl *

You will get with libcrypt-util-perl package name, version, architecture and description in a table

libcrypt-util-perl package basic information: