FreeOTFE logo FreeOTFE
(PDA version of WWW site)

What is FreeOTFE?
FreeOTFE is a free, open source, "on-the-fly" transparent disk encryption program for PCs and PDAs

Using this software, you can create one or more "virtual disks" on your PC/PDA. These disks operate exactly like a normal disk, with the exception that anything written to one of them is transparently, and securely, encrypted before being stored on your computer's hard drive.

Features include:

  • Source code freely available
  • Easy to use; full wizard included for creating new volumes
  • Both PC and PDA versions are available; data encrypted on your PC can be read/written on your PDA, and vice versa
  • No need to install it; making it ideal for use on USB memory drives, etc
  • It's powerful: Supporting numerous hash (including SHA-512, RIPEMD-160, Tiger) and encryption algorithms (including AES, Twofish and Serpent) in several modes (CBC, LRW and XTS) - providing a much greater level of flexibility than a number of other (including commercial!) OTFE systems
  • Encrypted volumes may either be file, partition, or even disk based
  • Much more!

See the full features list and screenshots for more details!

FreeOTFE and FreeOTFE4PDA v3.00 released (16th December 2007)
v3.0 of both the PC and PDA versions of FreeOTFE have now been released, featuring a number of enhancements, including:
  • Full installer support (release also available as a ZIP file for more portable use)
  • LRW and XTS encryption
  • Post-mount and pre/post-dismount launchers (provides basis for automated integrity checking, setup, cleanup, etc)
  • Further command line support
  • Numerous other enhancements!

FreeOTFE4PDA v2.11 released (29th June 2007)
An update release of FreeOTFE4PDA is now available (v2.11), which fixes a couple of minor issues with commandline options/".vol" file associations

FreeOTFE4PDA v2.10 released (27th May 2007)
v2.10 of FreeOTFE4PDA has now been released, featuring improved support for Windows Mobile 5 softkeys

New FreeOTFE WWW Site released! (8th April 2007)
Hope you like the new look! This will be tweaked further in the days to come...

FreeOTFE and FreeOTFE4PDA v2.0 released (18th March 2007)
v2.0 of both the PC and PDA versions of FreeOTFE have now been released, featuring a number of enhancements, including support for Windows Vista on the PC version, and configurable options on the PDA version