TrueCrypt is an awesome open-source software program for on the fly file encryption. Here’s some of the main features:
- Creates a virtual encrypted disk within a file and mounts it as a real disk.
- Encrypts an entire hard disk partition or a storage device such as USB flash drive.
- Encryption is automatic, real-time (on-the-fly) and transparent.
- Provides two levels of plausible deniability, in case an adversary forces you to reveal the password:
1) Hidden volume (steganography – more information may be found here).
2) No TrueCrypt volume can be identified (volumes cannot be distinguished from random data).
- Encryption algorithms: AES-256, Serpent, and Twofish. Mode of operation: LRW.
The software runs on Windows Vista/XP/2000 and Linux. It allows you to create a mountable volume on your computer in order to store files that are fully and securely encrypted. Excellent program and free. Check it out.
Download TrueCrypt 4.3a for Windows
Download TrueCrypt 4.3a for Linux