LUKS is the standard for Linux hard disk encryption. By providing a standard on-disk-format, it does not only facilitate compatibility among distributions, but also provides secure management of multiple user passwords. Developed by Clemens Fruhwirth
License: Open Source
TrueCrypt is a versatile and cross-platform encryption tool that offers strong security features, but it is no longer maintained, which raises concerns about vulnerabilities. LUKS, on the other hand, is specifically designed for Linux environments, providing robust encryption through dm-crypt, but may be less user-friendly for those unfamiliar with command line operations.