FreeOTFE Alternatives for Linux

TrueCrypt was a free and open-source disk encryption software, offering on-the-fly encryption for volumes, including creating encrypted virtual disks and encrypting entire partitions or storage devices. Known for its robust security features and portability, it allowed users to secure sensitive data effectively.

GNU Privacy Guard (GnuPG or GPG) is a free and open-source implementation of the OpenPGP standard, widely used for encrypting and signing data and communications. It provides a robust suite of command-line and graphical tools to protect sensitive information.

CipherShed is an open-source and cross-platform disk encryption program designed to create and manage encrypted storage containers or encrypt entire partitions/drives. It aims to provide strong data protection with a focus on security and user privacy.

EncFS is a transparent file encryption tool that utilizes a FUSE-based filesystem. It allows users to encrypt selected directories, with the encrypted data stored in another designated directory, providing on-the-fly encryption and decryption.

LUKS (Linux Unified Key Setup) is the standard disk encryption framework for Linux, providing a robust and secure method to encrypt entire disks or partitions. It ensures data confidentiality by employing industry-standard encryption algorithms and secure key management practices.

Seahorse is the default application for managing encryption keys and passwords within the GNOME desktop environment. It provides a graphical interface for handling various cryptographic operations, including GPG key management, SSH key pairs, and securely storing passwords in the GnomeKeyring.