Ghost Writing the Whip

"Ghost imaging" sounds like the spooky stuff of frivolous fiction, but it's an established technique for reconstructing hi-res images of objects partly obscured by clouds or smoke. Now a group of researchers at the National University of Singapore (NUS) is applying the same idea in reverse to securing stored or shared electronic data. Their work establishes "marked ghost imaging" technology as a new type of multi-layer verification protocol for data storage or transmission.

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