Description:
It creates virtual encrypted disks within a file and mount it as a real disk. It can also encrypt an entire hard disk partition or a device, such as USB memory stick, floppy disk, etc. It supports a full range of encryption algorithms, including AES-256, Blowfish (448-bit key), CAST5, Serpent (256-bit key), Triple DES, and Twofish (256-bit key). You can also read this
Guide for more info.