Hiding Information in Silver and Carbon Ink (Schneier on Security)

2016-12-13 12:21

Interesting: "We used silver and carbon ink to print an image consisting of small rods that are about a millimeter long and a couple of hundred microns wide," said Ajay Nahata from the University of Utah, leader of the research team. "We found that changing the fraction of silver and carbon in each rod changes the conductivity in each rod...

News URL

https://www.schneier.com/blog/archives/2016/12/hiding_informat.html

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