Binary package “cryptsetup-udeb” in ubuntu focal

disk encryption support - commandline tools (udeb)

 Cryptsetup provides an interface for configuring encryption on block
 devices (such as /home or swap partitions), using the Linux kernel
 device mapper target dm-crypt. It features integrated Linux Unified Key
 Setup (LUKS) support.
 .
 This udeb package provides cryptsetup for the Debian Installer.