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A comment on Radio Attack Lets Hackers Steal Cars with Just $20 Worth of Gear. Parent comment
1 nanosecond is about a foot. A 100MHz clock gives us a resolution of 10 ns, which translates to 2.25 meters away by light in air.
As a backup if your fob battery is dead, you could use inductive power in the door, or just use that to begin with (still with distance-bounding).
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1 nanosecond is about a foot. A 100MHz clock gives us a resolution of 10 ns, which translates to 2.25 meters away by light in air.
As a backup if your fob battery is dead, you could use inductive power in the door, or just use that to begin with (still with distance-bounding).