LUKS is the upcoming standard for Linux hard disk encryption.
By providing a standard on-disk-format, it does not only facilitate
compatibility among distributions, but also provide secure management
of multiple user passwords. In contrast to existing solution, LUKS stores
all setup necessary setup information in the partition header, enabling
the user to transport or migrate his data seamlessly.

LUKS for dm-crypt is implemented in cryptsetup. cryptsetup-luks is
a complete replacement for the original cryptsetup. It provides all the
functionally of the original version plus all the LUKS features, which are
accessible by the luks* commands.