An encrypted file system on a USB thumbdrive
You may think USB thumb-sized flash disks are the ideal removable storage device, however one of their advantages can be a big problem. Unfortunately, they are also easy to lose or to steal; it is always annoying to “lose” data, but in the case of very sensitive data, it is a disaster. As we cannot put a guard behind our pendrive the only solution is encrypting the data.
In this article, I will explain how to set up FreeBSD to use a USB thumbdrive, how to configure and use the Cryptographic File System (CFS), and then for the FreeBSD 5.X users, how to use the brand new Geom Based Disk Encryption system (gbde).
By Marc Fonvieille at BSDnews.
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