LUKS (Linux Unified Key Setup) is a disk-encryption specification. It is the standard for Linux hard disk encryption.

LUKS (Linux Unified Key Setup) is a disk-encryption specification. It is the standard for Linux hard disk encryption. LUKS stores all setup necessary setup information in the partition header, enabling the user to transport or migrate his data seamlessly.

Website: http://code.google.com/p/cryptsetup/

Wikipedia: http://en.wikipedia.org/wiki/Linux_Unified_Key_Setup