said by C|Net :

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So what are the countermeasures? As I noted above, shutting down the system, zeroing memory on boot, and unmounting encrypted volumes are some options. The paper suggests others, including limiting booting from network or removable drives, better methods of putting a computer to sleep (perhaps involving encrypting the portions of memory with the keys to the file system), recomputing keys when they're needed to avoid keeping copies in memory, and hardware changes such as tamperproof or encrypting RAM.

There is one irony here. One Princeton Ph.D. student, Joseph Calandrino, is listed as having "performed this research while under appointment to the Department of Homeland Security." Because this research lets them bypass filesystem encryption in some cases, police agencies are the most obvious and immediate beneficiaries of this research.

As early as 1984, the FBI Laboratory began developing computer forensics hardware. And we know from the Scarfo, Forrester-Alba, and Boucher cases how intent federal police agencies are in trying to find ways to circumvent the privacy that encryption provides. If the feds didn't know about these techniques already--remember, they were years ahead of everyone else in inventing public key cryptography--today will be a very good day for Homeland Security.

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