2 ms·
"TRESOR is a technique that keeps the volume key strictly in the CPU registers and not in RAM. This completely prevents RAM freezing and related attacks." Unti
by al2o3cr 12y ago
"TRESOR is a technique that keeps the volume key strictly in the CPU registers and not in RAM. This completely prevents RAM freezing and related attacks."
Until an interrupt happens, and the handler saves the registers on the stack. (sad trombone)
- cornholio 12y agoActually, they use the internal CPU debug registers which aren't automatically saved - in fact they whole purpose is to trigger a context save when the hardware break-point is hit and invoke the debugger. If breakpoints are disabled, using 8 1 bit flags contained in the registers, you have a whooping 6x32-8=184 bits of storage on x86 and 376 bits of storage on x64.