www.truecrypt.org

     
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.
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URL: http://www.truecrypt.org/ URL: http://www.truecrypt.org/screenshots.php URL: http://www.truecrypt.org/downloads.php URL: http://www.truecrypt.org URL: http://www.truecrypt.org/docs/ URL: http://www.truecrypt.org/docs/?s=aes
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URL: http://www.truecrypt.org/docs/?s=command-line-usage URL: http://www.truecrypt.org/docs/?s=tutorial URL: http://www.truecrypt.org/docs/?s=version-history
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URL: http://www.truecrypt.org/downloads