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Tinfoil Hat Linux (THL) is a compact Security-focused Linux distribution designed for high security developed by the Shmoo Group. The first version (1.000) was released in February 2002. It appears to be a low priority project . Its image files and source are available in gzip format. THL can be used on almost any modern PC, as it requires a Intel 80386 or better computer, with at least 8 MB of RAM. The distribution fits on a single HD floppy. The small footprint provides additional benefits beyond making the system easy to understand and verify- the computer need not even have a hard drive, making it easier to "sanitize" the computer after use. The logo of Tinfoil Hat is Tux, the Linux mascot, wearing a tinfoil hat. ==Security features== Tinfoil Hat uses a number of measures to defeat hardware and software surveillance methods like keystroke logging, video camera, and TEMPEST: *Encryption — GNU Privacy Guard (GPG) public key cryptography software is included in THL. *Data retrieval — All temporary files are created on an encrypted ramdisk that is destroyed on shutdown. Even the GPG keyfile information can be stored encrypted on the floppy. *Keystroke monitoring — THL has gpggrid, a wrapper for GPG that lets you use a video game style character entry system instead of typing in your passphrase. Keystroke loggers get a set of grid points, not your passphrase. *Power usage and other side channel attacks — Under the Paranoid options, a copy of GPG runs in the background generating keys and encrypting random documents. This makes it harder to determine when real encryption is taking place. *Even reading the screen over the user's shoulder is very hard when Tinfoil Hat is switched to paranoid mode, which sets the screen to a very low contrast. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tinfoil Hat Linux」の詳細全文を読む スポンサード リンク
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