FreeOTFE Alternatives
FreeOTFE is described as 'free, open source, "on-the-fly" (OTFE) disk encryption program for PCs running MS Windows and Windows Mobile PDAs (FreeOTFE4PDA)'. There are more than 50 alternatives to FreeOTFE for a variety of platforms, including Windows, Linux, Mac, Android and iPhone. The best alternative is TrueCrypt, which is both free and Open Source. Other great apps like FreeOTFE are GnuPG (Free, Open Source), Windows BitLocker (Paid), LUKS (Free, Open Source) and Encrypto (Free).
- [TrueCrypt is not exactly "Open Source", but the source is available. See the reviews to get more information.] TrueCrypt is a disk encryption software for Windows Vista/XP, Mac OS X, and Linux.
Discontinued
Currently unmaintained. Last version, TrueCrypt 7.1a, is still available for download and development has continued via the forks VeraCrypt and CipherShed. "The development of TrueCrypt was ended in 5/2014 after Microsoft terminated support of Windows XP. Windows 8/7/Vista and later offer integrated support for encrypted disks and virtual disk images."
- GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories. GnuPG, also known as GPG, is a command line tool with features for easy integration with other applications.
- BitLocker Drive Encryption is a data protection feature that integrates with the operating system and addresses the threats of data theft or exposure from lost, stolen, or inappropriately decommissioned computers.
- 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.
- Encrypto lets you encrypt files before sending them to friends or coworkers. Just drop a file into Encrypto, set a password, and then send it however you normally would — but this time with added security. It’s free for both Mac and Windows.
- Kleopatra is a certificate manager and a universal crypto GUI.
- EncFS provides an encrypted filesystem in user-space. It runs without any special permissions and uses the FUSE library and Linux kernel module to provide the filesystem interface. You can find links to source and binary releases below.
Warning
The author has agreed that EncFS in its current form is dangerous (to security) for several reasons. Wikipedia has a brief summary: https://en.wikipedia.org/wiki/EncFS#General_Security_Concerns
The actual audit, which the author participated in, is here: https://defuse.ca/audits/encfs.htm
No screenshots yet - A fork of the now-discontinued TrueCrypt. CipherShed is a program that can be used to create encrypted files or encrypt entire drives (including USB flash drives and external HDDs).
Discontinued
No releases since Sep 6, 2017. See https://www.ciphershed.org/news/
- DiskCryptor is the only truly free solution, provided under GNU General Public License (GPLv3), which offers encryption of all disk partitions, including the system partition.