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There are TPMs exactly for this. Not very popular, though.



These sound awesome. Wikipedia says many laptops have them. Is this true? If so, how can I detect one on Linux?


There are tpm kernel modules and tpm-tools package (in Debian, for example). Also sometimes device must be turned on in BIOS Setup.


And all of the recent Mac laptops have them. You need a special driver -- look here for a good writeup: http://osxbook.com/book/bonus/chapter10/tpm/




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