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TrueCrypt an open source laptop encryption choice for SMBs

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Finally, choose your volume format (FAT, NTFS or none) and cluster size (up to 64 KB). You'll see the Random Pool in this window, representing the random number generator (RNG) used to generate the master encryption key; note the difference in entropy while your system is at rest versus moving your mouse rapidly. The more you move your mouse, thus creating more randomness (entropy) for the RNG, the stronger your key will be. Choose format as your final step.

Once your volume is created, return to the primary interface, navigate to your newly created volume and mount it. You'll be prompted for your uber-password and you'll also have the chance to select more advanced mount options, including mounting the volume as removable media. This option is important when you wish to prevent Windows from automatically creating the Recycled and/or System Volume Information folders on the volume (these folders are used by the Recycle Bin and System Restore facilities).


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Use the benchmark feature to choose encryption that strikes the right balance of security and performance.



Mounting your volume offers advanced options, including mounting as removable media.

This was first published in November 2008

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