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Tin Hat is a Linux distribution derived from hardened Gentoo

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Tin Hat is a Linux distribution derived from hardened Gentoo which aims to provide a very secure, stable and fast Desktop environment that lives purely in RAM. Tin Hat boots from CD, or optionally a pen drive, but it is not a LiveCD. It does not mount any file system from CD via unionfs or otherwise. Rather, Tin Hat is a massive image (approx. 2.3GB) which loads into tmpfs upon booting. One pays the prices of long boot times (5 minutes off CD, 2 minutes off pen drives), but the advantage afterwords is that there are no delays going back to the CD when starting applications. Needless to say, this has some rather extreme advantages and disadvantages, making Tin Hat a rather particular distribution.

Tin Hat was conceived as a challenge to the old mantra that physical access to a system means full access to the data. This is certainly true in the case of unencrypted file systems, and at least potentially true in the case of encrypted. Rather, Tin Hat aims towards the ideal of guaranteeing zero information loss.

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