Cryogenically frozen RAM bypasses disk encryption methods (2008)

Re:Cryogenically frozen RAM bypasses disk encryption methods... by amelius on Sunday June 12, 2016 @08:35AM (#11887808)

I have the feeling this could be trivially solved by adding reset lines to the RAM design, and triggering them on shutdown (perhaps powered by some capacitor).

[ Parent | on HN ]

Re:Cryogenically frozen RAM bypasses disk encryption methods... by dietrichepp on Sunday June 12, 2016 @03:43PM (#11889901)

I don't think that would be trivial at all. How would it work?

[ Parent | on HN ]

Re:Cryogenically frozen RAM bypasses disk encryption methods... by amelius on Sunday June 12, 2016 @05:04PM (#11890224)

Have a look at the design of a DRAM cell (search for it in google images). Basically you can just pull all the address lines high, and set the bit lines to ground. SDRAM works similarly.

[ Parent | on HN ]

Re:Cryogenically frozen RAM bypasses disk encryption methods... by dietrichepp on Tuesday June 14, 2016 @05:15AM (#11900754)

But that would require an immense amount of current, compared to what those lines can ordinarily source. That's what I'm talking about. High current density can cause problems with electromigration.

[ Parent | on HN ]