Someone wrote in [personal profile] mjg59 2013-07-08 03:03 am (UTC)

Re: Threat to dm-crypt

Unencrypted RAM can be easily read with physical access to the machine, just like the SSD.

See this 2008 paper (https://citp.princeton.edu/research/memory/) or watch the video (http://www.youtube.com/watch?v=JDaicPIgn9U) demonstrating a technique to pull unencrypted passphrases/keys out of RAM from a suspended machine to unlock dm-crypt, TrueCrypt, FileVault, etc.
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