Battleangel

The free software that gives you plausible deniability. Which could come in handy in these treacherous times.

Truecrypt 4.0 uses as encryption algorithms: AES-256, Blowfish (448-bit key), CAST5, Serpent (256-bit key), Triple DES, and Twofish (256-bit key). Supports cascading (e.g., AES-Twofish-Serpent).

New features include but are not limited to: Full support for keyfiles, Writing to the outer volume without risking that a hidden volume within it will get damaged, Auto-Dismount facility, No longer uses the windows registry, Network mounting, Much faster mounting algorithm etc.