TrueCrypt - Open-source free on-the-fly disk encryption for Windows, Mac OS and GNU/Linux. It can encrypt partitions or create virtual encrypted disks within files. Implemented ciphers: AES-256, Blowfish (448-bit key), 3DES, Serpent, Twofish. Provides plausible deniability. DataRescue - The aCrypt software allows the user to encrypt files and send them via email to others without the software. 4t HIT Mail Privacy Lite - Sends and receives private data hidden in images of various types by using a strong encrypting algorithm. The Global Solutions Group - A collection of free encryption software. ABC CHAOS - A program which is able to encrypt and decrypt files of every type and even whole directory structures using strong encryption. Crypto Anywhere - OpenPGP Edition - Allows for secure email encryption on the move, and can run from floppy or USB drive. ROT-13 Encryptor & Decryptor - Web form to encode and decode ROT13, a simple letter substitution encryption scheme. Secure Hive Freeware - Encrypts files for archiving and sharing of parts of, or entire documents. Chaos Mash - Offers 30 different way to encrypt a file along with personalized key for decrypting it. Inv Softworks LLC. - Free lite versions of commercial software, Kryptel Lite and Iron Key.