TrueCrypt creates virtual encrypted disks mountable in Win XP or Win 2000. It encrypts hard disk partitions and removable media like USB drives and flash memory. TrueCrypt provides plausible deniability through hidden encrypted volumes. AES-256, Blowfish, CAST5, Serpent, Triple DES and Twofish encryption, as well as cascaded algorithms. TrueCrypt never uses hash output directly as an encryption key. Max encrypted volume size: 9223372036GB.
