TrueCrypt is an open-source encryption software that enables you to create a virtual encrypted disk within a file and mount it as a virtual disk, that can be accessed via a drive letter. Any file that is stored on this virtual drive is automatically encrypted on-the-fly, and can only be accessed while the drive is mounted with the correct password or key. TrueCrypt supports a variety of encryption algorithms, including AES-256, Blowfish (448-bit key), CAST5, Serpent, Triple DES, and Twofish. Other features include support for FAT32 or NTFS formatting, hidden volumes, hotkeys for mounting/dismounting and more.
It has the following main features:
- Creates a virtual encrypted disk within a file and mounts it as a real disk.
- Encrypts an entire storage device such as USB flash drive or hard drive.
- Encryption is automatic and real-time.
- Encryption algorithms: AES-256, Serpent, and Twofish.
TrueCrypt can be found in following URL
http://www.truecrypt.org
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