One such attack, Rowhammer, targets specific areas of memory and then hammers adjacent rows in an attempt to cause a bit flip
in the target area.
Due to the overlaps of which parity bits correspond to which data bits (calculated from an algorithm), a bit flip
can not only be detected, but also corrected.
"When you have a single bit flip
, it could have any number of causes.
One of the most studied types of soft defects is Single Event Upset (SEU) which describes a bit flip
in a node of a logic circuit.
We are considering faults due to single event upset (SEU) and multiple bit upset (MBU), which are injected through bit flip
But he can be a bit flip
, as in this reference to the "Planet of the Apes" remake: "Several events occurred in rapid succession: (Oliver) Stone went off to pursue projects of his own; ...
Some readers may find the tone of the book a bit flip
: a statue of a herm is compared to a "large Pez dispenser" (104).
If at first Onyx seems a bit flip
with regard to Jesse's predicament the dying man seems to take his illness and Ray's active extramarital sex life in stride--this lush novel deepens as Jesse registers AIDS double assault against him: After surviving many familial and social obstacles, Jesse must accept not only his own imminent death but also Ray's ambitious sexual journey and future life without him.
The idea is to cause a random bit flip
by zapping the card with a pulse of radiation or by suddenly changing the voltage or rate at which the card's chip normally operates.
Here's how Rowhammer works: Recent research has shown that repeatedly accessing the same memory blocks over and over can cause a bit flip
in other DRAM locations.