In this talk I shall cover two concepts related to protecting your information, cryptographic file system and steganographic file system. A cryptographic file system is a file system where the data stored is encrypted by the operating system (thus, protecting the confidentiality of the information in case the hard disk is taken away). A steganographic file system is a file system which is hidden from prying eyes, namely, that a person holding the hard disk cannot even find the files.
The talk will describe some of the technical aspects of these file systems, including a bit of the concepts of how they work, and the problems they may cause. Then, as much as possible, we shall discuss their implementations in Linux.
The talk will not assume crpytographic knowledge, even though, it won't hurt you to know a bit before hand.
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